Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | // |
| 5 | // Review notes: |
| 6 | // |
| 7 | // - The use of macros in these inline functions may seem superfluous |
| 8 | // but it is absolutely needed to make sure gcc generates optimal |
| 9 | // code. gcc is not happy when attempting to inline too deep. |
| 10 | // |
| 11 | |
| 12 | #ifndef V8_OBJECTS_INL_H_ |
| 13 | #define V8_OBJECTS_INL_H_ |
| 14 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 15 | #include "src/base/atomicops.h" |
| 16 | #include "src/base/bits.h" |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 17 | #include "src/builtins.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 18 | #include "src/contexts-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 19 | #include "src/conversions-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 20 | #include "src/factory.h" |
| 21 | #include "src/field-index-inl.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 22 | #include "src/field-type.h" |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 23 | #include "src/handles-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 24 | #include "src/heap/heap-inl.h" |
| 25 | #include "src/heap/heap.h" |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 26 | #include "src/isolate-inl.h" |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 27 | #include "src/isolate.h" |
| 28 | #include "src/keys.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 29 | #include "src/layout-descriptor-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | #include "src/lookup.h" |
| 31 | #include "src/objects.h" |
| 32 | #include "src/property.h" |
| 33 | #include "src/prototype.h" |
| 34 | #include "src/transitions-inl.h" |
| 35 | #include "src/type-feedback-vector-inl.h" |
| 36 | #include "src/v8memory.h" |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 37 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 38 | namespace v8 { |
| 39 | namespace internal { |
| 40 | |
| 41 | PropertyDetails::PropertyDetails(Smi* smi) { |
| 42 | value_ = smi->value(); |
| 43 | } |
| 44 | |
| 45 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 46 | Smi* PropertyDetails::AsSmi() const { |
| 47 | // Ensure the upper 2 bits have the same value by sign extending it. This is |
| 48 | // necessary to be able to use the 31st bit of the property details. |
| 49 | int value = value_ << 1; |
| 50 | return Smi::FromInt(value >> 1); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 54 | int PropertyDetails::field_width_in_words() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 55 | DCHECK(location() == kField); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 56 | if (!FLAG_unbox_double_fields) return 1; |
| 57 | if (kDoubleSize == kPointerSize) return 1; |
| 58 | return representation().IsDouble() ? kDoubleSize / kPointerSize : 1; |
| 59 | } |
| 60 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 61 | #define TYPE_CHECKER(type, instancetype) \ |
| 62 | bool HeapObject::Is##type() const { \ |
| 63 | return map()->instance_type() == instancetype; \ |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 64 | } |
| 65 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 66 | #define CAST_ACCESSOR(type) \ |
| 67 | type* type::cast(Object* object) { \ |
| 68 | SLOW_DCHECK(object->Is##type()); \ |
| 69 | return reinterpret_cast<type*>(object); \ |
| 70 | } \ |
| 71 | const type* type::cast(const Object* object) { \ |
| 72 | SLOW_DCHECK(object->Is##type()); \ |
| 73 | return reinterpret_cast<const type*>(object); \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 77 | #define INT_ACCESSORS(holder, name, offset) \ |
| 78 | int holder::name() const { return READ_INT_FIELD(this, offset); } \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 79 | void holder::set_##name(int value) { WRITE_INT_FIELD(this, offset, value); } |
| 80 | |
| 81 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 82 | #define ACCESSORS(holder, name, type, offset) \ |
| 83 | type* holder::name() const { return type::cast(READ_FIELD(this, offset)); } \ |
| 84 | void holder::set_##name(type* value, WriteBarrierMode mode) { \ |
| 85 | WRITE_FIELD(this, offset, value); \ |
| 86 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, value, mode); \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 90 | // Getter that returns a Smi as an int and writes an int as a Smi. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 91 | #define SMI_ACCESSORS(holder, name, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 92 | int holder::name() const { \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 93 | Object* value = READ_FIELD(this, offset); \ |
| 94 | return Smi::cast(value)->value(); \ |
| 95 | } \ |
| 96 | void holder::set_##name(int value) { \ |
| 97 | WRITE_FIELD(this, offset, Smi::FromInt(value)); \ |
| 98 | } |
| 99 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 100 | #define SYNCHRONIZED_SMI_ACCESSORS(holder, name, offset) \ |
| 101 | int holder::synchronized_##name() const { \ |
| 102 | Object* value = ACQUIRE_READ_FIELD(this, offset); \ |
| 103 | return Smi::cast(value)->value(); \ |
| 104 | } \ |
| 105 | void holder::synchronized_set_##name(int value) { \ |
| 106 | RELEASE_WRITE_FIELD(this, offset, Smi::FromInt(value)); \ |
| 107 | } |
| 108 | |
| 109 | #define NOBARRIER_SMI_ACCESSORS(holder, name, offset) \ |
| 110 | int holder::nobarrier_##name() const { \ |
| 111 | Object* value = NOBARRIER_READ_FIELD(this, offset); \ |
| 112 | return Smi::cast(value)->value(); \ |
| 113 | } \ |
| 114 | void holder::nobarrier_set_##name(int value) { \ |
| 115 | NOBARRIER_WRITE_FIELD(this, offset, Smi::FromInt(value)); \ |
| 116 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 117 | |
| 118 | #define BOOL_GETTER(holder, field, name, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 119 | bool holder::name() const { \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 120 | return BooleanBit::get(field(), offset); \ |
| 121 | } \ |
| 122 | |
| 123 | |
| 124 | #define BOOL_ACCESSORS(holder, field, name, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 125 | bool holder::name() const { \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 126 | return BooleanBit::get(field(), offset); \ |
| 127 | } \ |
| 128 | void holder::set_##name(bool value) { \ |
| 129 | set_##field(BooleanBit::set(field(), offset, value)); \ |
| 130 | } |
| 131 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 132 | bool HeapObject::IsFixedArrayBase() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 133 | return IsFixedArray() || IsFixedDoubleArray() || IsFixedTypedArrayBase(); |
| 134 | } |
| 135 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 136 | bool HeapObject::IsFixedArray() const { |
| 137 | InstanceType instance_type = map()->instance_type(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 138 | return instance_type == FIXED_ARRAY_TYPE || |
| 139 | instance_type == TRANSITION_ARRAY_TYPE; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 140 | } |
| 141 | |
| 142 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 143 | // External objects are not extensible, so the map check is enough. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 144 | bool HeapObject::IsExternal() const { |
| 145 | return map() == GetHeap()->external_map(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 149 | TYPE_CHECKER(HeapNumber, HEAP_NUMBER_TYPE) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 150 | TYPE_CHECKER(MutableHeapNumber, MUTABLE_HEAP_NUMBER_TYPE) |
| 151 | TYPE_CHECKER(Symbol, SYMBOL_TYPE) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 152 | TYPE_CHECKER(Simd128Value, SIMD128_VALUE_TYPE) |
| 153 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 154 | #define SIMD128_TYPE_CHECKER(TYPE, Type, type, lane_count, lane_type) \ |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 155 | bool HeapObject::Is##Type() const { return map() == GetHeap()->type##_map(); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 156 | SIMD128_TYPES(SIMD128_TYPE_CHECKER) |
| 157 | #undef SIMD128_TYPE_CHECKER |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 158 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 159 | #define IS_TYPE_FUNCTION_DEF(type_) \ |
| 160 | bool Object::Is##type_() const { \ |
| 161 | return IsHeapObject() && HeapObject::cast(this)->Is##type_(); \ |
| 162 | } |
| 163 | HEAP_OBJECT_TYPE_LIST(IS_TYPE_FUNCTION_DEF) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 164 | #undef IS_TYPE_FUNCTION_DEF |
| 165 | |
| 166 | #define IS_TYPE_FUNCTION_DEF(Type, Value) \ |
| 167 | bool Object::Is##Type(Isolate* isolate) const { \ |
| 168 | return this == isolate->heap()->Value(); \ |
| 169 | } \ |
| 170 | bool HeapObject::Is##Type(Isolate* isolate) const { \ |
| 171 | return this == isolate->heap()->Value(); \ |
| 172 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 173 | ODDBALL_LIST(IS_TYPE_FUNCTION_DEF) |
| 174 | #undef IS_TYPE_FUNCTION_DEF |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 175 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 176 | bool HeapObject::IsString() const { |
| 177 | return map()->instance_type() < FIRST_NONSTRING_TYPE; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 178 | } |
| 179 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 180 | bool HeapObject::IsName() const { |
| 181 | return map()->instance_type() <= LAST_NAME_TYPE; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 182 | } |
| 183 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 184 | bool HeapObject::IsUniqueName() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 185 | return IsInternalizedString() || IsSymbol(); |
| 186 | } |
| 187 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 188 | bool Name::IsUniqueName() const { |
| 189 | uint32_t type = map()->instance_type(); |
| 190 | return (type & (kIsNotStringMask | kIsNotInternalizedMask)) != |
| 191 | (kStringTag | kNotInternalizedTag); |
| 192 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 193 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 194 | bool HeapObject::IsFunction() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 195 | STATIC_ASSERT(LAST_FUNCTION_TYPE == LAST_TYPE); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 196 | return map()->instance_type() >= FIRST_FUNCTION_TYPE; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 197 | } |
| 198 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 199 | bool HeapObject::IsCallable() const { return map()->is_callable(); } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 200 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 201 | bool HeapObject::IsConstructor() const { return map()->is_constructor(); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 202 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 203 | bool HeapObject::IsTemplateInfo() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 204 | return IsObjectTemplateInfo() || IsFunctionTemplateInfo(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 205 | } |
| 206 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 207 | bool HeapObject::IsInternalizedString() const { |
| 208 | uint32_t type = map()->instance_type(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 209 | STATIC_ASSERT(kNotInternalizedTag != 0); |
| 210 | return (type & (kIsNotStringMask | kIsNotInternalizedMask)) == |
| 211 | (kStringTag | kInternalizedTag); |
| 212 | } |
| 213 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 214 | bool HeapObject::IsConsString() const { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 215 | if (!IsString()) return false; |
| 216 | return StringShape(String::cast(this)).IsCons(); |
| 217 | } |
| 218 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 219 | bool HeapObject::IsSlicedString() const { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 220 | if (!IsString()) return false; |
| 221 | return StringShape(String::cast(this)).IsSliced(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 222 | } |
| 223 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 224 | bool HeapObject::IsSeqString() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 225 | if (!IsString()) return false; |
| 226 | return StringShape(String::cast(this)).IsSequential(); |
| 227 | } |
| 228 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 229 | bool HeapObject::IsSeqOneByteString() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 230 | if (!IsString()) return false; |
| 231 | return StringShape(String::cast(this)).IsSequential() && |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 232 | String::cast(this)->IsOneByteRepresentation(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 233 | } |
| 234 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 235 | bool HeapObject::IsSeqTwoByteString() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 236 | if (!IsString()) return false; |
| 237 | return StringShape(String::cast(this)).IsSequential() && |
| 238 | String::cast(this)->IsTwoByteRepresentation(); |
| 239 | } |
| 240 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 241 | bool HeapObject::IsExternalString() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 242 | if (!IsString()) return false; |
| 243 | return StringShape(String::cast(this)).IsExternal(); |
| 244 | } |
| 245 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 246 | bool HeapObject::IsExternalOneByteString() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 247 | if (!IsString()) return false; |
| 248 | return StringShape(String::cast(this)).IsExternal() && |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 249 | String::cast(this)->IsOneByteRepresentation(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 250 | } |
| 251 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 252 | bool HeapObject::IsExternalTwoByteString() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 253 | if (!IsString()) return false; |
| 254 | return StringShape(String::cast(this)).IsExternal() && |
| 255 | String::cast(this)->IsTwoByteRepresentation(); |
| 256 | } |
| 257 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 258 | bool Object::HasValidElements() { |
| 259 | // Dictionary is covered under FixedArray. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 260 | return IsFixedArray() || IsFixedDoubleArray() || IsFixedTypedArrayBase(); |
| 261 | } |
| 262 | |
| 263 | |
| 264 | bool Object::KeyEquals(Object* second) { |
| 265 | Object* first = this; |
| 266 | if (second->IsNumber()) { |
| 267 | if (first->IsNumber()) return first->Number() == second->Number(); |
| 268 | Object* temp = first; |
| 269 | first = second; |
| 270 | second = temp; |
| 271 | } |
| 272 | if (first->IsNumber()) { |
| 273 | DCHECK_LE(0, first->Number()); |
| 274 | uint32_t expected = static_cast<uint32_t>(first->Number()); |
| 275 | uint32_t index; |
| 276 | return Name::cast(second)->AsArrayIndex(&index) && index == expected; |
| 277 | } |
| 278 | return Name::cast(first)->Equals(Name::cast(second)); |
| 279 | } |
| 280 | |
| 281 | |
| 282 | bool Object::FilterKey(PropertyFilter filter) { |
| 283 | if (IsSymbol()) { |
| 284 | if (filter & SKIP_SYMBOLS) return true; |
| 285 | if (Symbol::cast(this)->is_private()) return true; |
| 286 | } else { |
| 287 | if (filter & SKIP_STRINGS) return true; |
| 288 | } |
| 289 | return false; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 290 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 291 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 292 | |
| 293 | Handle<Object> Object::NewStorageFor(Isolate* isolate, |
| 294 | Handle<Object> object, |
| 295 | Representation representation) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 296 | if (representation.IsSmi() && object->IsUninitialized(isolate)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 297 | return handle(Smi::FromInt(0), isolate); |
| 298 | } |
| 299 | if (!representation.IsDouble()) return object; |
| 300 | double value; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 301 | if (object->IsUninitialized(isolate)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 302 | value = 0; |
| 303 | } else if (object->IsMutableHeapNumber()) { |
| 304 | value = HeapNumber::cast(*object)->value(); |
| 305 | } else { |
| 306 | value = object->Number(); |
| 307 | } |
| 308 | return isolate->factory()->NewHeapNumber(value, MUTABLE); |
| 309 | } |
| 310 | |
| 311 | |
| 312 | Handle<Object> Object::WrapForRead(Isolate* isolate, |
| 313 | Handle<Object> object, |
| 314 | Representation representation) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 315 | DCHECK(!object->IsUninitialized(isolate)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 316 | if (!representation.IsDouble()) { |
| 317 | DCHECK(object->FitsRepresentation(representation)); |
| 318 | return object; |
| 319 | } |
| 320 | return isolate->factory()->NewHeapNumber(HeapNumber::cast(*object)->value()); |
| 321 | } |
| 322 | |
| 323 | |
| 324 | StringShape::StringShape(const String* str) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 325 | : type_(str->map()->instance_type()) { |
| 326 | set_valid(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 327 | DCHECK((type_ & kIsNotStringMask) == kStringTag); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 328 | } |
| 329 | |
| 330 | |
| 331 | StringShape::StringShape(Map* map) |
| 332 | : type_(map->instance_type()) { |
| 333 | set_valid(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 334 | DCHECK((type_ & kIsNotStringMask) == kStringTag); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | |
| 338 | StringShape::StringShape(InstanceType t) |
| 339 | : type_(static_cast<uint32_t>(t)) { |
| 340 | set_valid(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 341 | DCHECK((type_ & kIsNotStringMask) == kStringTag); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 345 | bool StringShape::IsInternalized() { |
| 346 | DCHECK(valid()); |
| 347 | STATIC_ASSERT(kNotInternalizedTag != 0); |
| 348 | return (type_ & (kIsNotStringMask | kIsNotInternalizedMask)) == |
| 349 | (kStringTag | kInternalizedTag); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 353 | bool String::IsOneByteRepresentation() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 354 | uint32_t type = map()->instance_type(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 355 | return (type & kStringEncodingMask) == kOneByteStringTag; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 359 | bool String::IsTwoByteRepresentation() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 360 | uint32_t type = map()->instance_type(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 361 | return (type & kStringEncodingMask) == kTwoByteStringTag; |
| 362 | } |
| 363 | |
| 364 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 365 | bool String::IsOneByteRepresentationUnderneath() { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 366 | uint32_t type = map()->instance_type(); |
| 367 | STATIC_ASSERT(kIsIndirectStringTag != 0); |
| 368 | STATIC_ASSERT((kIsIndirectStringMask & kStringEncodingMask) == 0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 369 | DCHECK(IsFlat()); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 370 | switch (type & (kIsIndirectStringMask | kStringEncodingMask)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 371 | case kOneByteStringTag: |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 372 | return true; |
| 373 | case kTwoByteStringTag: |
| 374 | return false; |
| 375 | default: // Cons or sliced string. Need to go deeper. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 376 | return GetUnderlying()->IsOneByteRepresentation(); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 377 | } |
| 378 | } |
| 379 | |
| 380 | |
| 381 | bool String::IsTwoByteRepresentationUnderneath() { |
| 382 | uint32_t type = map()->instance_type(); |
| 383 | STATIC_ASSERT(kIsIndirectStringTag != 0); |
| 384 | STATIC_ASSERT((kIsIndirectStringMask & kStringEncodingMask) == 0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 385 | DCHECK(IsFlat()); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 386 | switch (type & (kIsIndirectStringMask | kStringEncodingMask)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 387 | case kOneByteStringTag: |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 388 | return false; |
| 389 | case kTwoByteStringTag: |
| 390 | return true; |
| 391 | default: // Cons or sliced string. Need to go deeper. |
| 392 | return GetUnderlying()->IsTwoByteRepresentation(); |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 397 | bool String::HasOnlyOneByteChars() { |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 398 | uint32_t type = map()->instance_type(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 399 | return (type & kOneByteDataHintMask) == kOneByteDataHintTag || |
| 400 | IsOneByteRepresentation(); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 404 | bool StringShape::IsCons() { |
| 405 | return (type_ & kStringRepresentationMask) == kConsStringTag; |
| 406 | } |
| 407 | |
| 408 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 409 | bool StringShape::IsSliced() { |
| 410 | return (type_ & kStringRepresentationMask) == kSlicedStringTag; |
| 411 | } |
| 412 | |
| 413 | |
| 414 | bool StringShape::IsIndirect() { |
| 415 | return (type_ & kIsIndirectStringMask) == kIsIndirectStringTag; |
| 416 | } |
| 417 | |
| 418 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 419 | bool StringShape::IsExternal() { |
| 420 | return (type_ & kStringRepresentationMask) == kExternalStringTag; |
| 421 | } |
| 422 | |
| 423 | |
| 424 | bool StringShape::IsSequential() { |
| 425 | return (type_ & kStringRepresentationMask) == kSeqStringTag; |
| 426 | } |
| 427 | |
| 428 | |
| 429 | StringRepresentationTag StringShape::representation_tag() { |
| 430 | uint32_t tag = (type_ & kStringRepresentationMask); |
| 431 | return static_cast<StringRepresentationTag>(tag); |
| 432 | } |
| 433 | |
| 434 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 435 | uint32_t StringShape::encoding_tag() { |
| 436 | return type_ & kStringEncodingMask; |
| 437 | } |
| 438 | |
| 439 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 440 | uint32_t StringShape::full_representation_tag() { |
| 441 | return (type_ & (kStringRepresentationMask | kStringEncodingMask)); |
| 442 | } |
| 443 | |
| 444 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 445 | STATIC_ASSERT((kStringRepresentationMask | kStringEncodingMask) == |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 446 | Internals::kFullStringRepresentationMask); |
| 447 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 448 | STATIC_ASSERT(static_cast<uint32_t>(kStringEncodingMask) == |
| 449 | Internals::kStringEncodingMask); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 450 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 451 | |
| 452 | bool StringShape::IsSequentialOneByte() { |
| 453 | return full_representation_tag() == (kSeqStringTag | kOneByteStringTag); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 454 | } |
| 455 | |
| 456 | |
| 457 | bool StringShape::IsSequentialTwoByte() { |
| 458 | return full_representation_tag() == (kSeqStringTag | kTwoByteStringTag); |
| 459 | } |
| 460 | |
| 461 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 462 | bool StringShape::IsExternalOneByte() { |
| 463 | return full_representation_tag() == (kExternalStringTag | kOneByteStringTag); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 467 | STATIC_ASSERT((kExternalStringTag | kOneByteStringTag) == |
| 468 | Internals::kExternalOneByteRepresentationTag); |
| 469 | |
| 470 | STATIC_ASSERT(v8::String::ONE_BYTE_ENCODING == kOneByteStringTag); |
| 471 | |
| 472 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 473 | bool StringShape::IsExternalTwoByte() { |
| 474 | return full_representation_tag() == (kExternalStringTag | kTwoByteStringTag); |
| 475 | } |
| 476 | |
| 477 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 478 | STATIC_ASSERT((kExternalStringTag | kTwoByteStringTag) == |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 479 | Internals::kExternalTwoByteRepresentationTag); |
| 480 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 481 | STATIC_ASSERT(v8::String::TWO_BYTE_ENCODING == kTwoByteStringTag); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 482 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 483 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 484 | uc32 FlatStringReader::Get(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 485 | if (is_one_byte_) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 486 | return Get<uint8_t>(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 487 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 488 | return Get<uc16>(index); |
| 489 | } |
| 490 | } |
| 491 | |
| 492 | |
| 493 | template <typename Char> |
| 494 | Char FlatStringReader::Get(int index) { |
| 495 | DCHECK_EQ(is_one_byte_, sizeof(Char) == 1); |
| 496 | DCHECK(0 <= index && index <= length_); |
| 497 | if (sizeof(Char) == 1) { |
| 498 | return static_cast<Char>(static_cast<const uint8_t*>(start_)[index]); |
| 499 | } else { |
| 500 | return static_cast<Char>(static_cast<const uc16*>(start_)[index]); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 501 | } |
| 502 | } |
| 503 | |
| 504 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 505 | Handle<Object> StringTableShape::AsHandle(Isolate* isolate, HashTableKey* key) { |
| 506 | return key->AsHandle(isolate); |
| 507 | } |
| 508 | |
| 509 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 510 | Handle<Object> CompilationCacheShape::AsHandle(Isolate* isolate, |
| 511 | HashTableKey* key) { |
| 512 | return key->AsHandle(isolate); |
| 513 | } |
| 514 | |
| 515 | |
| 516 | Handle<Object> CodeCacheHashTableShape::AsHandle(Isolate* isolate, |
| 517 | HashTableKey* key) { |
| 518 | return key->AsHandle(isolate); |
| 519 | } |
| 520 | |
| 521 | template <typename Char> |
| 522 | class SequentialStringKey : public HashTableKey { |
| 523 | public: |
| 524 | explicit SequentialStringKey(Vector<const Char> string, uint32_t seed) |
| 525 | : string_(string), hash_field_(0), seed_(seed) { } |
| 526 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 527 | uint32_t Hash() override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 528 | hash_field_ = StringHasher::HashSequentialString<Char>(string_.start(), |
| 529 | string_.length(), |
| 530 | seed_); |
| 531 | |
| 532 | uint32_t result = hash_field_ >> String::kHashShift; |
| 533 | DCHECK(result != 0); // Ensure that the hash value of 0 is never computed. |
| 534 | return result; |
| 535 | } |
| 536 | |
| 537 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 538 | uint32_t HashForObject(Object* other) override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 539 | return String::cast(other)->Hash(); |
| 540 | } |
| 541 | |
| 542 | Vector<const Char> string_; |
| 543 | uint32_t hash_field_; |
| 544 | uint32_t seed_; |
| 545 | }; |
| 546 | |
| 547 | |
| 548 | class OneByteStringKey : public SequentialStringKey<uint8_t> { |
| 549 | public: |
| 550 | OneByteStringKey(Vector<const uint8_t> str, uint32_t seed) |
| 551 | : SequentialStringKey<uint8_t>(str, seed) { } |
| 552 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 553 | bool IsMatch(Object* string) override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 554 | return String::cast(string)->IsOneByteEqualTo(string_); |
| 555 | } |
| 556 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 557 | Handle<Object> AsHandle(Isolate* isolate) override; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 558 | }; |
| 559 | |
| 560 | |
| 561 | class SeqOneByteSubStringKey : public HashTableKey { |
| 562 | public: |
| 563 | SeqOneByteSubStringKey(Handle<SeqOneByteString> string, int from, int length) |
| 564 | : string_(string), from_(from), length_(length) { |
| 565 | DCHECK(string_->IsSeqOneByteString()); |
| 566 | } |
| 567 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 568 | uint32_t Hash() override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 569 | DCHECK(length_ >= 0); |
| 570 | DCHECK(from_ + length_ <= string_->length()); |
| 571 | const uint8_t* chars = string_->GetChars() + from_; |
| 572 | hash_field_ = StringHasher::HashSequentialString( |
| 573 | chars, length_, string_->GetHeap()->HashSeed()); |
| 574 | uint32_t result = hash_field_ >> String::kHashShift; |
| 575 | DCHECK(result != 0); // Ensure that the hash value of 0 is never computed. |
| 576 | return result; |
| 577 | } |
| 578 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 579 | uint32_t HashForObject(Object* other) override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 580 | return String::cast(other)->Hash(); |
| 581 | } |
| 582 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 583 | bool IsMatch(Object* string) override; |
| 584 | Handle<Object> AsHandle(Isolate* isolate) override; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 585 | |
| 586 | private: |
| 587 | Handle<SeqOneByteString> string_; |
| 588 | int from_; |
| 589 | int length_; |
| 590 | uint32_t hash_field_; |
| 591 | }; |
| 592 | |
| 593 | |
| 594 | class TwoByteStringKey : public SequentialStringKey<uc16> { |
| 595 | public: |
| 596 | explicit TwoByteStringKey(Vector<const uc16> str, uint32_t seed) |
| 597 | : SequentialStringKey<uc16>(str, seed) { } |
| 598 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 599 | bool IsMatch(Object* string) override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 600 | return String::cast(string)->IsTwoByteEqualTo(string_); |
| 601 | } |
| 602 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 603 | Handle<Object> AsHandle(Isolate* isolate) override; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 604 | }; |
| 605 | |
| 606 | |
| 607 | // Utf8StringKey carries a vector of chars as key. |
| 608 | class Utf8StringKey : public HashTableKey { |
| 609 | public: |
| 610 | explicit Utf8StringKey(Vector<const char> string, uint32_t seed) |
| 611 | : string_(string), hash_field_(0), seed_(seed) { } |
| 612 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 613 | bool IsMatch(Object* string) override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 614 | return String::cast(string)->IsUtf8EqualTo(string_); |
| 615 | } |
| 616 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 617 | uint32_t Hash() override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 618 | if (hash_field_ != 0) return hash_field_ >> String::kHashShift; |
| 619 | hash_field_ = StringHasher::ComputeUtf8Hash(string_, seed_, &chars_); |
| 620 | uint32_t result = hash_field_ >> String::kHashShift; |
| 621 | DCHECK(result != 0); // Ensure that the hash value of 0 is never computed. |
| 622 | return result; |
| 623 | } |
| 624 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 625 | uint32_t HashForObject(Object* other) override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 626 | return String::cast(other)->Hash(); |
| 627 | } |
| 628 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 629 | Handle<Object> AsHandle(Isolate* isolate) override { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 630 | if (hash_field_ == 0) Hash(); |
| 631 | return isolate->factory()->NewInternalizedStringFromUtf8( |
| 632 | string_, chars_, hash_field_); |
| 633 | } |
| 634 | |
| 635 | Vector<const char> string_; |
| 636 | uint32_t hash_field_; |
| 637 | int chars_; // Caches the number of characters when computing the hash code. |
| 638 | uint32_t seed_; |
| 639 | }; |
| 640 | |
| 641 | |
| 642 | bool Object::IsNumber() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 643 | return IsSmi() || IsHeapNumber(); |
| 644 | } |
| 645 | |
| 646 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 647 | TYPE_CHECKER(ByteArray, BYTE_ARRAY_TYPE) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 648 | TYPE_CHECKER(BytecodeArray, BYTECODE_ARRAY_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 649 | TYPE_CHECKER(FreeSpace, FREE_SPACE_TYPE) |
| 650 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 651 | bool HeapObject::IsFiller() const { |
| 652 | InstanceType instance_type = map()->instance_type(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 653 | return instance_type == FREE_SPACE_TYPE || instance_type == FILLER_TYPE; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 654 | } |
| 655 | |
| 656 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 657 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 658 | #define TYPED_ARRAY_TYPE_CHECKER(Type, type, TYPE, ctype, size) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 659 | TYPE_CHECKER(Fixed##Type##Array, FIXED_##TYPE##_ARRAY_TYPE) |
| 660 | |
| 661 | TYPED_ARRAYS(TYPED_ARRAY_TYPE_CHECKER) |
| 662 | #undef TYPED_ARRAY_TYPE_CHECKER |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 663 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 664 | bool HeapObject::IsFixedTypedArrayBase() const { |
| 665 | InstanceType instance_type = map()->instance_type(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 666 | return (instance_type >= FIRST_FIXED_TYPED_ARRAY_TYPE && |
| 667 | instance_type <= LAST_FIXED_TYPED_ARRAY_TYPE); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 668 | } |
| 669 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 670 | bool HeapObject::IsJSReceiver() const { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 671 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 672 | return map()->instance_type() >= FIRST_JS_RECEIVER_TYPE; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 673 | } |
| 674 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 675 | bool HeapObject::IsJSObject() const { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 676 | STATIC_ASSERT(LAST_JS_OBJECT_TYPE == LAST_TYPE); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 677 | return map()->IsJSObjectMap(); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 678 | } |
| 679 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 680 | bool HeapObject::IsJSProxy() const { return map()->IsJSProxyMap(); } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 681 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 682 | TYPE_CHECKER(JSSet, JS_SET_TYPE) |
| 683 | TYPE_CHECKER(JSMap, JS_MAP_TYPE) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 684 | TYPE_CHECKER(JSSetIterator, JS_SET_ITERATOR_TYPE) |
| 685 | TYPE_CHECKER(JSMapIterator, JS_MAP_ITERATOR_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 686 | TYPE_CHECKER(JSWeakMap, JS_WEAK_MAP_TYPE) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 687 | TYPE_CHECKER(JSWeakSet, JS_WEAK_SET_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 688 | TYPE_CHECKER(JSContextExtensionObject, JS_CONTEXT_EXTENSION_OBJECT_TYPE) |
| 689 | TYPE_CHECKER(Map, MAP_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 690 | TYPE_CHECKER(FixedDoubleArray, FIXED_DOUBLE_ARRAY_TYPE) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 691 | TYPE_CHECKER(WeakFixedArray, FIXED_ARRAY_TYPE) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 692 | TYPE_CHECKER(TransitionArray, TRANSITION_ARRAY_TYPE) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 693 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 694 | bool HeapObject::IsJSWeakCollection() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 695 | return IsJSWeakMap() || IsJSWeakSet(); |
| 696 | } |
| 697 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 698 | bool HeapObject::IsDescriptorArray() const { return IsFixedArray(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 699 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 700 | bool HeapObject::IsArrayList() const { return IsFixedArray(); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 701 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 702 | bool Object::IsLayoutDescriptor() const { |
| 703 | return IsSmi() || IsFixedTypedArrayBase(); |
| 704 | } |
| 705 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 706 | bool HeapObject::IsTypeFeedbackVector() const { return IsFixedArray(); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 707 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 708 | bool HeapObject::IsTypeFeedbackMetadata() const { return IsFixedArray(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 709 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 710 | bool HeapObject::IsLiteralsArray() const { return IsFixedArray(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 711 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 712 | bool HeapObject::IsDeoptimizationInputData() const { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 713 | // Must be a fixed array. |
| 714 | if (!IsFixedArray()) return false; |
| 715 | |
| 716 | // There's no sure way to detect the difference between a fixed array and |
| 717 | // a deoptimization data array. Since this is used for asserts we can |
| 718 | // check that the length is zero or else the fixed size plus a multiple of |
| 719 | // the entry size. |
| 720 | int length = FixedArray::cast(this)->length(); |
| 721 | if (length == 0) return true; |
| 722 | |
| 723 | length -= DeoptimizationInputData::kFirstDeoptEntryIndex; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 724 | return length >= 0 && length % DeoptimizationInputData::kDeoptEntrySize == 0; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 725 | } |
| 726 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 727 | bool HeapObject::IsDeoptimizationOutputData() const { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 728 | if (!IsFixedArray()) return false; |
| 729 | // There's actually no way to see the difference between a fixed array and |
| 730 | // a deoptimization data array. Since this is used for asserts we can check |
| 731 | // that the length is plausible though. |
| 732 | if (FixedArray::cast(this)->length() % 2 != 0) return false; |
| 733 | return true; |
| 734 | } |
| 735 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 736 | bool HeapObject::IsHandlerTable() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 737 | if (!IsFixedArray()) return false; |
| 738 | // There's actually no way to see the difference between a fixed array and |
| 739 | // a handler table array. |
| 740 | return true; |
| 741 | } |
| 742 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 743 | bool HeapObject::IsDependentCode() const { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 744 | if (!IsFixedArray()) return false; |
| 745 | // There's actually no way to see the difference between a fixed array and |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 746 | // a dependent codes array. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 747 | return true; |
| 748 | } |
| 749 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 750 | bool HeapObject::IsContext() const { |
| 751 | Map* map = this->map(); |
| 752 | Heap* heap = GetHeap(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 753 | return ( |
| 754 | map == heap->function_context_map() || map == heap->catch_context_map() || |
| 755 | map == heap->with_context_map() || map == heap->native_context_map() || |
| 756 | map == heap->block_context_map() || map == heap->module_context_map() || |
| 757 | map == heap->script_context_map() || |
| 758 | map == heap->debug_evaluate_context_map()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 759 | } |
| 760 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 761 | bool HeapObject::IsNativeContext() const { |
| 762 | return map() == GetHeap()->native_context_map(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 763 | } |
| 764 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 765 | bool HeapObject::IsScriptContextTable() const { |
| 766 | return map() == GetHeap()->script_context_table_map(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 767 | } |
| 768 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 769 | bool HeapObject::IsScopeInfo() const { |
| 770 | return map() == GetHeap()->scope_info_map(); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 771 | } |
| 772 | |
| 773 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 774 | TYPE_CHECKER(JSBoundFunction, JS_BOUND_FUNCTION_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 775 | TYPE_CHECKER(JSFunction, JS_FUNCTION_TYPE) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 776 | |
| 777 | |
| 778 | template <> inline bool Is<JSFunction>(Object* obj) { |
| 779 | return obj->IsJSFunction(); |
| 780 | } |
| 781 | |
| 782 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 783 | TYPE_CHECKER(Code, CODE_TYPE) |
| 784 | TYPE_CHECKER(Oddball, ODDBALL_TYPE) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 785 | TYPE_CHECKER(Cell, CELL_TYPE) |
| 786 | TYPE_CHECKER(PropertyCell, PROPERTY_CELL_TYPE) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 787 | TYPE_CHECKER(WeakCell, WEAK_CELL_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 788 | TYPE_CHECKER(SharedFunctionInfo, SHARED_FUNCTION_INFO_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 789 | TYPE_CHECKER(JSDate, JS_DATE_TYPE) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 790 | TYPE_CHECKER(JSError, JS_ERROR_TYPE) |
| 791 | TYPE_CHECKER(JSGeneratorObject, JS_GENERATOR_OBJECT_TYPE) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 792 | TYPE_CHECKER(JSMessageObject, JS_MESSAGE_OBJECT_TYPE) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 793 | TYPE_CHECKER(JSModule, JS_MODULE_TYPE) |
| 794 | TYPE_CHECKER(JSPromise, JS_PROMISE_TYPE) |
| 795 | TYPE_CHECKER(JSValue, JS_VALUE_TYPE) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 796 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 797 | bool HeapObject::IsAbstractCode() const { |
| 798 | return IsBytecodeArray() || IsCode(); |
| 799 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 800 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 801 | bool HeapObject::IsStringWrapper() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 802 | return IsJSValue() && JSValue::cast(this)->value()->IsString(); |
| 803 | } |
| 804 | |
| 805 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 806 | TYPE_CHECKER(Foreign, FOREIGN_TYPE) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 807 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 808 | bool HeapObject::IsBoolean() const { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 809 | return IsOddball() && |
| 810 | ((Oddball::cast(this)->kind() & Oddball::kNotBooleanMask) == 0); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 814 | TYPE_CHECKER(JSArray, JS_ARRAY_TYPE) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 815 | TYPE_CHECKER(JSArrayBuffer, JS_ARRAY_BUFFER_TYPE) |
| 816 | TYPE_CHECKER(JSTypedArray, JS_TYPED_ARRAY_TYPE) |
| 817 | TYPE_CHECKER(JSDataView, JS_DATA_VIEW_TYPE) |
| 818 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 819 | bool HeapObject::IsJSArrayBufferView() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 820 | return IsJSDataView() || IsJSTypedArray(); |
| 821 | } |
| 822 | |
| 823 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 824 | TYPE_CHECKER(JSRegExp, JS_REGEXP_TYPE) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 825 | |
| 826 | |
| 827 | template <> inline bool Is<JSArray>(Object* obj) { |
| 828 | return obj->IsJSArray(); |
| 829 | } |
| 830 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 831 | bool HeapObject::IsHashTable() const { |
| 832 | return map() == GetHeap()->hash_table_map(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 833 | } |
| 834 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 835 | bool HeapObject::IsWeakHashTable() const { return IsHashTable(); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 836 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 837 | bool HeapObject::IsDictionary() const { |
| 838 | return IsHashTable() && this != GetHeap()->string_table(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 839 | } |
| 840 | |
| 841 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 842 | bool Object::IsNameDictionary() const { |
| 843 | return IsDictionary(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 844 | } |
| 845 | |
| 846 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 847 | bool Object::IsGlobalDictionary() const { return IsDictionary(); } |
| 848 | |
| 849 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 850 | bool Object::IsSeededNumberDictionary() const { |
| 851 | return IsDictionary(); |
| 852 | } |
| 853 | |
| 854 | |
| 855 | bool Object::IsUnseededNumberDictionary() const { |
| 856 | return IsDictionary(); |
| 857 | } |
| 858 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 859 | bool HeapObject::IsStringTable() const { return IsHashTable(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 860 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 861 | bool HeapObject::IsStringSet() const { return IsHashTable(); } |
| 862 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 863 | bool HeapObject::IsNormalizedMapCache() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 864 | return NormalizedMapCache::IsNormalizedMapCache(this); |
| 865 | } |
| 866 | |
| 867 | |
| 868 | int NormalizedMapCache::GetIndex(Handle<Map> map) { |
| 869 | return map->Hash() % NormalizedMapCache::kEntries; |
| 870 | } |
| 871 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 872 | bool NormalizedMapCache::IsNormalizedMapCache(const HeapObject* obj) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 873 | if (!obj->IsFixedArray()) return false; |
| 874 | if (FixedArray::cast(obj)->length() != NormalizedMapCache::kEntries) { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 875 | return false; |
| 876 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 877 | #ifdef VERIFY_HEAP |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 878 | if (FLAG_verify_heap) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 879 | reinterpret_cast<NormalizedMapCache*>(const_cast<HeapObject*>(obj)) |
| 880 | ->NormalizedMapCacheVerify(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 881 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 882 | #endif |
| 883 | return true; |
| 884 | } |
| 885 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 886 | bool HeapObject::IsCompilationCacheTable() const { return IsHashTable(); } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 887 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 888 | bool HeapObject::IsCodeCacheHashTable() const { return IsHashTable(); } |
| 889 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 890 | bool HeapObject::IsMapCache() const { return IsHashTable(); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 891 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 892 | bool HeapObject::IsObjectHashTable() const { return IsHashTable(); } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 893 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 894 | bool HeapObject::IsOrderedHashTable() const { |
| 895 | return map() == GetHeap()->ordered_hash_table_map(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 896 | } |
| 897 | |
| 898 | |
| 899 | bool Object::IsOrderedHashSet() const { |
| 900 | return IsOrderedHashTable(); |
| 901 | } |
| 902 | |
| 903 | |
| 904 | bool Object::IsOrderedHashMap() const { |
| 905 | return IsOrderedHashTable(); |
| 906 | } |
| 907 | |
| 908 | |
| 909 | bool Object::IsPrimitive() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 910 | return IsSmi() || HeapObject::cast(this)->map()->IsPrimitiveMap(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 911 | } |
| 912 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 913 | bool HeapObject::IsJSGlobalProxy() const { |
| 914 | bool result = map()->instance_type() == JS_GLOBAL_PROXY_TYPE; |
| 915 | DCHECK(!result || map()->is_access_check_needed()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 916 | return result; |
| 917 | } |
| 918 | |
| 919 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 920 | TYPE_CHECKER(JSGlobalObject, JS_GLOBAL_OBJECT_TYPE) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 921 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 922 | bool HeapObject::IsUndetectable() const { return map()->is_undetectable(); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 923 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 924 | bool HeapObject::IsAccessCheckNeeded() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 925 | if (IsJSGlobalProxy()) { |
| 926 | const JSGlobalProxy* proxy = JSGlobalProxy::cast(this); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 927 | JSGlobalObject* global = proxy->GetIsolate()->context()->global_object(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 928 | return proxy->IsDetachedFrom(global); |
| 929 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 930 | return map()->is_access_check_needed(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 931 | } |
| 932 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 933 | bool HeapObject::IsStruct() const { |
| 934 | switch (map()->instance_type()) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 935 | #define MAKE_STRUCT_CASE(NAME, Name, name) case NAME##_TYPE: return true; |
| 936 | STRUCT_LIST(MAKE_STRUCT_CASE) |
| 937 | #undef MAKE_STRUCT_CASE |
| 938 | default: return false; |
| 939 | } |
| 940 | } |
| 941 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 942 | #define MAKE_STRUCT_PREDICATE(NAME, Name, name) \ |
| 943 | bool Object::Is##Name() const { \ |
| 944 | return IsHeapObject() && HeapObject::cast(this)->Is##Name(); \ |
| 945 | } \ |
| 946 | bool HeapObject::Is##Name() const { \ |
| 947 | return map()->instance_type() == NAME##_TYPE; \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 948 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 949 | STRUCT_LIST(MAKE_STRUCT_PREDICATE) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 950 | #undef MAKE_STRUCT_PREDICATE |
| 951 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 952 | double Object::Number() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 953 | DCHECK(IsNumber()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 954 | return IsSmi() |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 955 | ? static_cast<double>(reinterpret_cast<const Smi*>(this)->value()) |
| 956 | : reinterpret_cast<const HeapNumber*>(this)->value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 957 | } |
| 958 | |
| 959 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 960 | bool Object::IsNaN() const { |
| 961 | return this->IsHeapNumber() && std::isnan(HeapNumber::cast(this)->value()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 962 | } |
| 963 | |
| 964 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 965 | bool Object::IsMinusZero() const { |
| 966 | return this->IsHeapNumber() && |
| 967 | i::IsMinusZero(HeapNumber::cast(this)->value()); |
| 968 | } |
| 969 | |
| 970 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 971 | Representation Object::OptimalRepresentation() { |
| 972 | if (!FLAG_track_fields) return Representation::Tagged(); |
| 973 | if (IsSmi()) { |
| 974 | return Representation::Smi(); |
| 975 | } else if (FLAG_track_double_fields && IsHeapNumber()) { |
| 976 | return Representation::Double(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 977 | } else if (FLAG_track_computed_fields && |
| 978 | IsUninitialized(HeapObject::cast(this)->GetIsolate())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 979 | return Representation::None(); |
| 980 | } else if (FLAG_track_heap_object_fields) { |
| 981 | DCHECK(IsHeapObject()); |
| 982 | return Representation::HeapObject(); |
| 983 | } else { |
| 984 | return Representation::Tagged(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 985 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 986 | } |
| 987 | |
| 988 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 989 | ElementsKind Object::OptimalElementsKind() { |
| 990 | if (IsSmi()) return FAST_SMI_ELEMENTS; |
| 991 | if (IsNumber()) return FAST_DOUBLE_ELEMENTS; |
| 992 | return FAST_ELEMENTS; |
| 993 | } |
| 994 | |
| 995 | |
| 996 | bool Object::FitsRepresentation(Representation representation) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 997 | if (FLAG_track_fields && representation.IsSmi()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 998 | return IsSmi(); |
| 999 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
| 1000 | return IsMutableHeapNumber() || IsNumber(); |
| 1001 | } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) { |
| 1002 | return IsHeapObject(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1003 | } else if (FLAG_track_fields && representation.IsNone()) { |
| 1004 | return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1005 | } |
| 1006 | return true; |
| 1007 | } |
| 1008 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1009 | bool Object::ToUint32(uint32_t* value) { |
| 1010 | if (IsSmi()) { |
| 1011 | int num = Smi::cast(this)->value(); |
| 1012 | if (num < 0) return false; |
| 1013 | *value = static_cast<uint32_t>(num); |
| 1014 | return true; |
| 1015 | } |
| 1016 | if (IsHeapNumber()) { |
| 1017 | double num = HeapNumber::cast(this)->value(); |
| 1018 | if (num < 0) return false; |
| 1019 | uint32_t uint_value = FastD2UI(num); |
| 1020 | if (FastUI2D(uint_value) == num) { |
| 1021 | *value = uint_value; |
| 1022 | return true; |
| 1023 | } |
| 1024 | } |
| 1025 | return false; |
| 1026 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1027 | |
| 1028 | // static |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1029 | MaybeHandle<JSReceiver> Object::ToObject(Isolate* isolate, |
| 1030 | Handle<Object> object) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1031 | if (object->IsJSReceiver()) return Handle<JSReceiver>::cast(object); |
| 1032 | return ToObject(isolate, object, isolate->native_context()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1033 | } |
| 1034 | |
| 1035 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1036 | // static |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1037 | MaybeHandle<Name> Object::ToName(Isolate* isolate, Handle<Object> input) { |
| 1038 | if (input->IsName()) return Handle<Name>::cast(input); |
| 1039 | return ConvertToName(isolate, input); |
| 1040 | } |
| 1041 | |
| 1042 | // static |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1043 | MaybeHandle<Object> Object::ToPrimitive(Handle<Object> input, |
| 1044 | ToPrimitiveHint hint) { |
| 1045 | if (input->IsPrimitive()) return input; |
| 1046 | return JSReceiver::ToPrimitive(Handle<JSReceiver>::cast(input), hint); |
| 1047 | } |
| 1048 | |
| 1049 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1050 | bool Object::HasSpecificClassOf(String* name) { |
| 1051 | return this->IsJSObject() && (JSObject::cast(this)->class_name() == name); |
| 1052 | } |
| 1053 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1054 | MaybeHandle<Object> Object::GetProperty(Handle<Object> object, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1055 | Handle<Name> name) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1056 | LookupIterator it(object, name); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1057 | if (!it.IsFound()) return it.factory()->undefined_value(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1058 | return GetProperty(&it); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1059 | } |
| 1060 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1061 | MaybeHandle<Object> JSReceiver::GetProperty(Handle<JSReceiver> receiver, |
| 1062 | Handle<Name> name) { |
| 1063 | LookupIterator it(receiver, name, receiver); |
| 1064 | if (!it.IsFound()) return it.factory()->undefined_value(); |
| 1065 | return Object::GetProperty(&it); |
| 1066 | } |
| 1067 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1068 | MaybeHandle<Object> Object::GetElement(Isolate* isolate, Handle<Object> object, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1069 | uint32_t index) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1070 | LookupIterator it(isolate, object, index); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1071 | if (!it.IsFound()) return it.factory()->undefined_value(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1072 | return GetProperty(&it); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1073 | } |
| 1074 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1075 | MaybeHandle<Object> JSReceiver::GetElement(Isolate* isolate, |
| 1076 | Handle<JSReceiver> receiver, |
| 1077 | uint32_t index) { |
| 1078 | LookupIterator it(isolate, receiver, index, receiver); |
| 1079 | if (!it.IsFound()) return it.factory()->undefined_value(); |
| 1080 | return Object::GetProperty(&it); |
| 1081 | } |
| 1082 | |
| 1083 | Handle<Object> JSReceiver::GetDataProperty(Handle<JSReceiver> object, |
| 1084 | Handle<Name> name) { |
| 1085 | LookupIterator it(object, name, object, |
| 1086 | LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); |
| 1087 | if (!it.IsFound()) return it.factory()->undefined_value(); |
| 1088 | return GetDataProperty(&it); |
| 1089 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1090 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1091 | MaybeHandle<Object> Object::SetElement(Isolate* isolate, Handle<Object> object, |
| 1092 | uint32_t index, Handle<Object> value, |
| 1093 | LanguageMode language_mode) { |
| 1094 | LookupIterator it(isolate, object, index); |
| 1095 | MAYBE_RETURN_NULL( |
| 1096 | SetProperty(&it, value, language_mode, MAY_BE_STORE_FROM_KEYED)); |
| 1097 | return value; |
| 1098 | } |
| 1099 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1100 | MaybeHandle<Object> JSReceiver::GetPrototype(Isolate* isolate, |
| 1101 | Handle<JSReceiver> receiver) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1102 | // We don't expect access checks to be needed on JSProxy objects. |
| 1103 | DCHECK(!receiver->IsAccessCheckNeeded() || receiver->IsJSObject()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1104 | PrototypeIterator iter(isolate, receiver, kStartAtReceiver, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1105 | PrototypeIterator::END_AT_NON_HIDDEN); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1106 | do { |
| 1107 | if (!iter.AdvanceFollowingProxies()) return MaybeHandle<Object>(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1108 | } while (!iter.IsAtEnd()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1109 | return PrototypeIterator::GetCurrent(iter); |
| 1110 | } |
| 1111 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1112 | MaybeHandle<Object> JSReceiver::GetProperty(Isolate* isolate, |
| 1113 | Handle<JSReceiver> receiver, |
| 1114 | const char* name) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1115 | Handle<String> str = isolate->factory()->InternalizeUtf8String(name); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1116 | return GetProperty(receiver, str); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1117 | } |
| 1118 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1119 | // static |
| 1120 | MUST_USE_RESULT MaybeHandle<FixedArray> JSReceiver::OwnPropertyKeys( |
| 1121 | Handle<JSReceiver> object) { |
| 1122 | return KeyAccumulator::GetKeys(object, KeyCollectionMode::kOwnOnly, |
| 1123 | ALL_PROPERTIES, |
| 1124 | GetKeysConversion::kConvertToString); |
| 1125 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1126 | |
| 1127 | #define FIELD_ADDR(p, offset) \ |
| 1128 | (reinterpret_cast<byte*>(p) + offset - kHeapObjectTag) |
| 1129 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1130 | #define FIELD_ADDR_CONST(p, offset) \ |
| 1131 | (reinterpret_cast<const byte*>(p) + offset - kHeapObjectTag) |
| 1132 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1133 | #define READ_FIELD(p, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1134 | (*reinterpret_cast<Object* const*>(FIELD_ADDR_CONST(p, offset))) |
| 1135 | |
| 1136 | #define ACQUIRE_READ_FIELD(p, offset) \ |
| 1137 | reinterpret_cast<Object*>(base::Acquire_Load( \ |
| 1138 | reinterpret_cast<const base::AtomicWord*>(FIELD_ADDR_CONST(p, offset)))) |
| 1139 | |
| 1140 | #define NOBARRIER_READ_FIELD(p, offset) \ |
| 1141 | reinterpret_cast<Object*>(base::NoBarrier_Load( \ |
| 1142 | reinterpret_cast<const base::AtomicWord*>(FIELD_ADDR_CONST(p, offset)))) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1143 | |
| 1144 | #define WRITE_FIELD(p, offset, value) \ |
| 1145 | (*reinterpret_cast<Object**>(FIELD_ADDR(p, offset)) = value) |
| 1146 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1147 | #define RELEASE_WRITE_FIELD(p, offset, value) \ |
| 1148 | base::Release_Store( \ |
| 1149 | reinterpret_cast<base::AtomicWord*>(FIELD_ADDR(p, offset)), \ |
| 1150 | reinterpret_cast<base::AtomicWord>(value)); |
| 1151 | |
| 1152 | #define NOBARRIER_WRITE_FIELD(p, offset, value) \ |
| 1153 | base::NoBarrier_Store( \ |
| 1154 | reinterpret_cast<base::AtomicWord*>(FIELD_ADDR(p, offset)), \ |
| 1155 | reinterpret_cast<base::AtomicWord>(value)); |
| 1156 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1157 | #define WRITE_BARRIER(heap, object, offset, value) \ |
| 1158 | heap->incremental_marking()->RecordWrite( \ |
| 1159 | object, HeapObject::RawField(object, offset), value); \ |
| 1160 | heap->RecordWrite(object, offset, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1161 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1162 | #define FIXED_ARRAY_ELEMENTS_WRITE_BARRIER(heap, array, start, length) \ |
| 1163 | do { \ |
| 1164 | heap->RecordFixedArrayElements(array, start, length); \ |
| 1165 | heap->incremental_marking()->IterateBlackObject(array); \ |
| 1166 | } while (false) |
| 1167 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1168 | #define CONDITIONAL_WRITE_BARRIER(heap, object, offset, value, mode) \ |
| 1169 | if (mode != SKIP_WRITE_BARRIER) { \ |
| 1170 | if (mode == UPDATE_WRITE_BARRIER) { \ |
| 1171 | heap->incremental_marking()->RecordWrite( \ |
| 1172 | object, HeapObject::RawField(object, offset), value); \ |
| 1173 | } \ |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1174 | heap->RecordWrite(object, offset, value); \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1175 | } |
| 1176 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1177 | #define READ_DOUBLE_FIELD(p, offset) \ |
| 1178 | ReadDoubleValue(FIELD_ADDR_CONST(p, offset)) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1179 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1180 | #define WRITE_DOUBLE_FIELD(p, offset, value) \ |
| 1181 | WriteDoubleValue(FIELD_ADDR(p, offset), value) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1182 | |
| 1183 | #define READ_INT_FIELD(p, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1184 | (*reinterpret_cast<const int*>(FIELD_ADDR_CONST(p, offset))) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1185 | |
| 1186 | #define WRITE_INT_FIELD(p, offset, value) \ |
| 1187 | (*reinterpret_cast<int*>(FIELD_ADDR(p, offset)) = value) |
| 1188 | |
| 1189 | #define READ_INTPTR_FIELD(p, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1190 | (*reinterpret_cast<const intptr_t*>(FIELD_ADDR_CONST(p, offset))) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1191 | |
| 1192 | #define WRITE_INTPTR_FIELD(p, offset, value) \ |
| 1193 | (*reinterpret_cast<intptr_t*>(FIELD_ADDR(p, offset)) = value) |
| 1194 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1195 | #define READ_UINT8_FIELD(p, offset) \ |
| 1196 | (*reinterpret_cast<const uint8_t*>(FIELD_ADDR_CONST(p, offset))) |
| 1197 | |
| 1198 | #define WRITE_UINT8_FIELD(p, offset, value) \ |
| 1199 | (*reinterpret_cast<uint8_t*>(FIELD_ADDR(p, offset)) = value) |
| 1200 | |
| 1201 | #define READ_INT8_FIELD(p, offset) \ |
| 1202 | (*reinterpret_cast<const int8_t*>(FIELD_ADDR_CONST(p, offset))) |
| 1203 | |
| 1204 | #define WRITE_INT8_FIELD(p, offset, value) \ |
| 1205 | (*reinterpret_cast<int8_t*>(FIELD_ADDR(p, offset)) = value) |
| 1206 | |
| 1207 | #define READ_UINT16_FIELD(p, offset) \ |
| 1208 | (*reinterpret_cast<const uint16_t*>(FIELD_ADDR_CONST(p, offset))) |
| 1209 | |
| 1210 | #define WRITE_UINT16_FIELD(p, offset, value) \ |
| 1211 | (*reinterpret_cast<uint16_t*>(FIELD_ADDR(p, offset)) = value) |
| 1212 | |
| 1213 | #define READ_INT16_FIELD(p, offset) \ |
| 1214 | (*reinterpret_cast<const int16_t*>(FIELD_ADDR_CONST(p, offset))) |
| 1215 | |
| 1216 | #define WRITE_INT16_FIELD(p, offset, value) \ |
| 1217 | (*reinterpret_cast<int16_t*>(FIELD_ADDR(p, offset)) = value) |
| 1218 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1219 | #define READ_UINT32_FIELD(p, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1220 | (*reinterpret_cast<const uint32_t*>(FIELD_ADDR_CONST(p, offset))) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1221 | |
| 1222 | #define WRITE_UINT32_FIELD(p, offset, value) \ |
| 1223 | (*reinterpret_cast<uint32_t*>(FIELD_ADDR(p, offset)) = value) |
| 1224 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1225 | #define READ_INT32_FIELD(p, offset) \ |
| 1226 | (*reinterpret_cast<const int32_t*>(FIELD_ADDR_CONST(p, offset))) |
| 1227 | |
| 1228 | #define WRITE_INT32_FIELD(p, offset, value) \ |
| 1229 | (*reinterpret_cast<int32_t*>(FIELD_ADDR(p, offset)) = value) |
| 1230 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1231 | #define READ_FLOAT_FIELD(p, offset) \ |
| 1232 | (*reinterpret_cast<const float*>(FIELD_ADDR_CONST(p, offset))) |
| 1233 | |
| 1234 | #define WRITE_FLOAT_FIELD(p, offset, value) \ |
| 1235 | (*reinterpret_cast<float*>(FIELD_ADDR(p, offset)) = value) |
| 1236 | |
| 1237 | #define READ_UINT64_FIELD(p, offset) \ |
| 1238 | (*reinterpret_cast<const uint64_t*>(FIELD_ADDR_CONST(p, offset))) |
| 1239 | |
| 1240 | #define WRITE_UINT64_FIELD(p, offset, value) \ |
| 1241 | (*reinterpret_cast<uint64_t*>(FIELD_ADDR(p, offset)) = value) |
| 1242 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1243 | #define READ_INT64_FIELD(p, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1244 | (*reinterpret_cast<const int64_t*>(FIELD_ADDR_CONST(p, offset))) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1245 | |
| 1246 | #define WRITE_INT64_FIELD(p, offset, value) \ |
| 1247 | (*reinterpret_cast<int64_t*>(FIELD_ADDR(p, offset)) = value) |
| 1248 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1249 | #define READ_BYTE_FIELD(p, offset) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1250 | (*reinterpret_cast<const byte*>(FIELD_ADDR_CONST(p, offset))) |
| 1251 | |
| 1252 | #define NOBARRIER_READ_BYTE_FIELD(p, offset) \ |
| 1253 | static_cast<byte>(base::NoBarrier_Load( \ |
| 1254 | reinterpret_cast<base::Atomic8*>(FIELD_ADDR(p, offset)))) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1255 | |
| 1256 | #define WRITE_BYTE_FIELD(p, offset, value) \ |
| 1257 | (*reinterpret_cast<byte*>(FIELD_ADDR(p, offset)) = value) |
| 1258 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1259 | #define NOBARRIER_WRITE_BYTE_FIELD(p, offset, value) \ |
| 1260 | base::NoBarrier_Store( \ |
| 1261 | reinterpret_cast<base::Atomic8*>(FIELD_ADDR(p, offset)), \ |
| 1262 | static_cast<base::Atomic8>(value)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1263 | |
| 1264 | Object** HeapObject::RawField(HeapObject* obj, int byte_offset) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1265 | return reinterpret_cast<Object**>(FIELD_ADDR(obj, byte_offset)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1266 | } |
| 1267 | |
| 1268 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1269 | MapWord MapWord::FromMap(const Map* map) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1270 | return MapWord(reinterpret_cast<uintptr_t>(map)); |
| 1271 | } |
| 1272 | |
| 1273 | |
| 1274 | Map* MapWord::ToMap() { |
| 1275 | return reinterpret_cast<Map*>(value_); |
| 1276 | } |
| 1277 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1278 | bool MapWord::IsForwardingAddress() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1279 | return HAS_SMI_TAG(reinterpret_cast<Object*>(value_)); |
| 1280 | } |
| 1281 | |
| 1282 | |
| 1283 | MapWord MapWord::FromForwardingAddress(HeapObject* object) { |
| 1284 | Address raw = reinterpret_cast<Address>(object) - kHeapObjectTag; |
| 1285 | return MapWord(reinterpret_cast<uintptr_t>(raw)); |
| 1286 | } |
| 1287 | |
| 1288 | |
| 1289 | HeapObject* MapWord::ToForwardingAddress() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1290 | DCHECK(IsForwardingAddress()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1291 | return HeapObject::FromAddress(reinterpret_cast<Address>(value_)); |
| 1292 | } |
| 1293 | |
| 1294 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1295 | #ifdef VERIFY_HEAP |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1296 | void HeapObject::VerifyObjectField(int offset) { |
| 1297 | VerifyPointer(READ_FIELD(this, offset)); |
| 1298 | } |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 1299 | |
| 1300 | void HeapObject::VerifySmiField(int offset) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1301 | CHECK(READ_FIELD(this, offset)->IsSmi()); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 1302 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1303 | #endif |
| 1304 | |
| 1305 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1306 | Heap* HeapObject::GetHeap() const { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1307 | Heap* heap = MemoryChunk::FromAddress( |
| 1308 | reinterpret_cast<Address>(const_cast<HeapObject*>(this))) |
| 1309 | ->heap(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1310 | SLOW_DCHECK(heap != NULL); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1311 | return heap; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1312 | } |
| 1313 | |
| 1314 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1315 | Isolate* HeapObject::GetIsolate() const { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1316 | return GetHeap()->isolate(); |
| 1317 | } |
| 1318 | |
| 1319 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1320 | Map* HeapObject::map() const { |
| 1321 | #ifdef DEBUG |
| 1322 | // Clear mark potentially added by PathTracer. |
| 1323 | uintptr_t raw_value = |
| 1324 | map_word().ToRawValue() & ~static_cast<uintptr_t>(PathTracer::kMarkTag); |
| 1325 | return MapWord::FromRawValue(raw_value).ToMap(); |
| 1326 | #else |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1327 | return map_word().ToMap(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1328 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1329 | } |
| 1330 | |
| 1331 | |
| 1332 | void HeapObject::set_map(Map* value) { |
| 1333 | set_map_word(MapWord::FromMap(value)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1334 | if (value != NULL) { |
| 1335 | // TODO(1600) We are passing NULL as a slot because maps can never be on |
| 1336 | // evacuation candidate. |
| 1337 | value->GetHeap()->incremental_marking()->RecordWrite(this, NULL, value); |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1342 | Map* HeapObject::synchronized_map() { |
| 1343 | return synchronized_map_word().ToMap(); |
| 1344 | } |
| 1345 | |
| 1346 | |
| 1347 | void HeapObject::synchronized_set_map(Map* value) { |
| 1348 | synchronized_set_map_word(MapWord::FromMap(value)); |
| 1349 | if (value != NULL) { |
| 1350 | // TODO(1600) We are passing NULL as a slot because maps can never be on |
| 1351 | // evacuation candidate. |
| 1352 | value->GetHeap()->incremental_marking()->RecordWrite(this, NULL, value); |
| 1353 | } |
| 1354 | } |
| 1355 | |
| 1356 | |
| 1357 | void HeapObject::synchronized_set_map_no_write_barrier(Map* value) { |
| 1358 | synchronized_set_map_word(MapWord::FromMap(value)); |
| 1359 | } |
| 1360 | |
| 1361 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1362 | // Unsafe accessor omitting write barrier. |
| 1363 | void HeapObject::set_map_no_write_barrier(Map* value) { |
| 1364 | set_map_word(MapWord::FromMap(value)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1365 | } |
| 1366 | |
| 1367 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1368 | MapWord HeapObject::map_word() const { |
| 1369 | return MapWord( |
| 1370 | reinterpret_cast<uintptr_t>(NOBARRIER_READ_FIELD(this, kMapOffset))); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1371 | } |
| 1372 | |
| 1373 | |
| 1374 | void HeapObject::set_map_word(MapWord map_word) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1375 | NOBARRIER_WRITE_FIELD( |
| 1376 | this, kMapOffset, reinterpret_cast<Object*>(map_word.value_)); |
| 1377 | } |
| 1378 | |
| 1379 | |
| 1380 | MapWord HeapObject::synchronized_map_word() const { |
| 1381 | return MapWord( |
| 1382 | reinterpret_cast<uintptr_t>(ACQUIRE_READ_FIELD(this, kMapOffset))); |
| 1383 | } |
| 1384 | |
| 1385 | |
| 1386 | void HeapObject::synchronized_set_map_word(MapWord map_word) { |
| 1387 | RELEASE_WRITE_FIELD( |
| 1388 | this, kMapOffset, reinterpret_cast<Object*>(map_word.value_)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1389 | } |
| 1390 | |
| 1391 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1392 | int HeapObject::Size() { |
| 1393 | return SizeFromMap(map()); |
| 1394 | } |
| 1395 | |
| 1396 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1397 | double HeapNumber::value() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1398 | return READ_DOUBLE_FIELD(this, kValueOffset); |
| 1399 | } |
| 1400 | |
| 1401 | |
| 1402 | void HeapNumber::set_value(double value) { |
| 1403 | WRITE_DOUBLE_FIELD(this, kValueOffset, value); |
| 1404 | } |
| 1405 | |
| 1406 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1407 | int HeapNumber::get_exponent() { |
| 1408 | return ((READ_INT_FIELD(this, kExponentOffset) & kExponentMask) >> |
| 1409 | kExponentShift) - kExponentBias; |
| 1410 | } |
| 1411 | |
| 1412 | |
| 1413 | int HeapNumber::get_sign() { |
| 1414 | return READ_INT_FIELD(this, kExponentOffset) & kSignMask; |
| 1415 | } |
| 1416 | |
| 1417 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1418 | bool Simd128Value::Equals(Simd128Value* that) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1419 | // TODO(bmeurer): This doesn't match the SIMD.js specification, but it seems |
| 1420 | // to be consistent with what the CompareICStub does, and what is tested in |
| 1421 | // the current SIMD.js testsuite. |
| 1422 | if (this == that) return true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1423 | #define SIMD128_VALUE(TYPE, Type, type, lane_count, lane_type) \ |
| 1424 | if (this->Is##Type()) { \ |
| 1425 | if (!that->Is##Type()) return false; \ |
| 1426 | return Type::cast(this)->Equals(Type::cast(that)); \ |
| 1427 | } |
| 1428 | SIMD128_TYPES(SIMD128_VALUE) |
| 1429 | #undef SIMD128_VALUE |
| 1430 | return false; |
| 1431 | } |
| 1432 | |
| 1433 | |
| 1434 | // static |
| 1435 | bool Simd128Value::Equals(Handle<Simd128Value> one, Handle<Simd128Value> two) { |
| 1436 | return one->Equals(*two); |
| 1437 | } |
| 1438 | |
| 1439 | |
| 1440 | #define SIMD128_VALUE_EQUALS(TYPE, Type, type, lane_count, lane_type) \ |
| 1441 | bool Type::Equals(Type* that) { \ |
| 1442 | for (int lane = 0; lane < lane_count; ++lane) { \ |
| 1443 | if (this->get_lane(lane) != that->get_lane(lane)) return false; \ |
| 1444 | } \ |
| 1445 | return true; \ |
| 1446 | } |
| 1447 | SIMD128_TYPES(SIMD128_VALUE_EQUALS) |
| 1448 | #undef SIMD128_VALUE_EQUALS |
| 1449 | |
| 1450 | |
| 1451 | #if defined(V8_TARGET_LITTLE_ENDIAN) |
| 1452 | #define SIMD128_READ_LANE(lane_type, lane_count, field_type, field_size) \ |
| 1453 | lane_type value = \ |
| 1454 | READ_##field_type##_FIELD(this, kValueOffset + lane * field_size); |
| 1455 | #elif defined(V8_TARGET_BIG_ENDIAN) |
| 1456 | #define SIMD128_READ_LANE(lane_type, lane_count, field_type, field_size) \ |
| 1457 | lane_type value = READ_##field_type##_FIELD( \ |
| 1458 | this, kValueOffset + (lane_count - lane - 1) * field_size); |
| 1459 | #else |
| 1460 | #error Unknown byte ordering |
| 1461 | #endif |
| 1462 | |
| 1463 | #if defined(V8_TARGET_LITTLE_ENDIAN) |
| 1464 | #define SIMD128_WRITE_LANE(lane_count, field_type, field_size, value) \ |
| 1465 | WRITE_##field_type##_FIELD(this, kValueOffset + lane * field_size, value); |
| 1466 | #elif defined(V8_TARGET_BIG_ENDIAN) |
| 1467 | #define SIMD128_WRITE_LANE(lane_count, field_type, field_size, value) \ |
| 1468 | WRITE_##field_type##_FIELD( \ |
| 1469 | this, kValueOffset + (lane_count - lane - 1) * field_size, value); |
| 1470 | #else |
| 1471 | #error Unknown byte ordering |
| 1472 | #endif |
| 1473 | |
| 1474 | #define SIMD128_NUMERIC_LANE_FNS(type, lane_type, lane_count, field_type, \ |
| 1475 | field_size) \ |
| 1476 | lane_type type::get_lane(int lane) const { \ |
| 1477 | DCHECK(lane < lane_count && lane >= 0); \ |
| 1478 | SIMD128_READ_LANE(lane_type, lane_count, field_type, field_size) \ |
| 1479 | return value; \ |
| 1480 | } \ |
| 1481 | \ |
| 1482 | void type::set_lane(int lane, lane_type value) { \ |
| 1483 | DCHECK(lane < lane_count && lane >= 0); \ |
| 1484 | SIMD128_WRITE_LANE(lane_count, field_type, field_size, value) \ |
| 1485 | } |
| 1486 | |
| 1487 | SIMD128_NUMERIC_LANE_FNS(Float32x4, float, 4, FLOAT, kFloatSize) |
| 1488 | SIMD128_NUMERIC_LANE_FNS(Int32x4, int32_t, 4, INT32, kInt32Size) |
| 1489 | SIMD128_NUMERIC_LANE_FNS(Uint32x4, uint32_t, 4, UINT32, kInt32Size) |
| 1490 | SIMD128_NUMERIC_LANE_FNS(Int16x8, int16_t, 8, INT16, kShortSize) |
| 1491 | SIMD128_NUMERIC_LANE_FNS(Uint16x8, uint16_t, 8, UINT16, kShortSize) |
| 1492 | SIMD128_NUMERIC_LANE_FNS(Int8x16, int8_t, 16, INT8, kCharSize) |
| 1493 | SIMD128_NUMERIC_LANE_FNS(Uint8x16, uint8_t, 16, UINT8, kCharSize) |
| 1494 | #undef SIMD128_NUMERIC_LANE_FNS |
| 1495 | |
| 1496 | |
| 1497 | #define SIMD128_BOOLEAN_LANE_FNS(type, lane_type, lane_count, field_type, \ |
| 1498 | field_size) \ |
| 1499 | bool type::get_lane(int lane) const { \ |
| 1500 | DCHECK(lane < lane_count && lane >= 0); \ |
| 1501 | SIMD128_READ_LANE(lane_type, lane_count, field_type, field_size) \ |
| 1502 | DCHECK(value == 0 || value == -1); \ |
| 1503 | return value != 0; \ |
| 1504 | } \ |
| 1505 | \ |
| 1506 | void type::set_lane(int lane, bool value) { \ |
| 1507 | DCHECK(lane < lane_count && lane >= 0); \ |
| 1508 | int32_t int_val = value ? -1 : 0; \ |
| 1509 | SIMD128_WRITE_LANE(lane_count, field_type, field_size, int_val) \ |
| 1510 | } |
| 1511 | |
| 1512 | SIMD128_BOOLEAN_LANE_FNS(Bool32x4, int32_t, 4, INT32, kInt32Size) |
| 1513 | SIMD128_BOOLEAN_LANE_FNS(Bool16x8, int16_t, 8, INT16, kShortSize) |
| 1514 | SIMD128_BOOLEAN_LANE_FNS(Bool8x16, int8_t, 16, INT8, kCharSize) |
| 1515 | #undef SIMD128_BOOLEAN_LANE_FNS |
| 1516 | |
| 1517 | #undef SIMD128_READ_LANE |
| 1518 | #undef SIMD128_WRITE_LANE |
| 1519 | |
| 1520 | |
| 1521 | ACCESSORS(JSReceiver, properties, FixedArray, kPropertiesOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1522 | |
| 1523 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1524 | Object** FixedArray::GetFirstElementAddress() { |
| 1525 | return reinterpret_cast<Object**>(FIELD_ADDR(this, OffsetOfElementAt(0))); |
| 1526 | } |
| 1527 | |
| 1528 | |
| 1529 | bool FixedArray::ContainsOnlySmisOrHoles() { |
| 1530 | Object* the_hole = GetHeap()->the_hole_value(); |
| 1531 | Object** current = GetFirstElementAddress(); |
| 1532 | for (int i = 0; i < length(); ++i) { |
| 1533 | Object* candidate = *current++; |
| 1534 | if (!candidate->IsSmi() && candidate != the_hole) return false; |
| 1535 | } |
| 1536 | return true; |
| 1537 | } |
| 1538 | |
| 1539 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1540 | FixedArrayBase* JSObject::elements() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1541 | Object* array = READ_FIELD(this, kElementsOffset); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1542 | return static_cast<FixedArrayBase*>(array); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1543 | } |
| 1544 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1545 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1546 | void AllocationSite::Initialize() { |
| 1547 | set_transition_info(Smi::FromInt(0)); |
| 1548 | SetElementsKind(GetInitialFastElementsKind()); |
| 1549 | set_nested_site(Smi::FromInt(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1550 | set_pretenure_data(0); |
| 1551 | set_pretenure_create_count(0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1552 | set_dependent_code(DependentCode::cast(GetHeap()->empty_fixed_array()), |
| 1553 | SKIP_WRITE_BARRIER); |
| 1554 | } |
| 1555 | |
| 1556 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1557 | bool AllocationSite::IsZombie() { return pretenure_decision() == kZombie; } |
| 1558 | |
| 1559 | |
| 1560 | bool AllocationSite::IsMaybeTenure() { |
| 1561 | return pretenure_decision() == kMaybeTenure; |
| 1562 | } |
| 1563 | |
| 1564 | |
| 1565 | bool AllocationSite::PretenuringDecisionMade() { |
| 1566 | return pretenure_decision() != kUndecided; |
| 1567 | } |
| 1568 | |
| 1569 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1570 | void AllocationSite::MarkZombie() { |
| 1571 | DCHECK(!IsZombie()); |
| 1572 | Initialize(); |
| 1573 | set_pretenure_decision(kZombie); |
| 1574 | } |
| 1575 | |
| 1576 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1577 | ElementsKind AllocationSite::GetElementsKind() { |
| 1578 | DCHECK(!SitePointsToLiteral()); |
| 1579 | int value = Smi::cast(transition_info())->value(); |
| 1580 | return ElementsKindBits::decode(value); |
| 1581 | } |
| 1582 | |
| 1583 | |
| 1584 | void AllocationSite::SetElementsKind(ElementsKind kind) { |
| 1585 | int value = Smi::cast(transition_info())->value(); |
| 1586 | set_transition_info(Smi::FromInt(ElementsKindBits::update(value, kind)), |
| 1587 | SKIP_WRITE_BARRIER); |
| 1588 | } |
| 1589 | |
| 1590 | |
| 1591 | bool AllocationSite::CanInlineCall() { |
| 1592 | int value = Smi::cast(transition_info())->value(); |
| 1593 | return DoNotInlineBit::decode(value) == 0; |
| 1594 | } |
| 1595 | |
| 1596 | |
| 1597 | void AllocationSite::SetDoNotInlineCall() { |
| 1598 | int value = Smi::cast(transition_info())->value(); |
| 1599 | set_transition_info(Smi::FromInt(DoNotInlineBit::update(value, true)), |
| 1600 | SKIP_WRITE_BARRIER); |
| 1601 | } |
| 1602 | |
| 1603 | |
| 1604 | bool AllocationSite::SitePointsToLiteral() { |
| 1605 | // If transition_info is a smi, then it represents an ElementsKind |
| 1606 | // for a constructed array. Otherwise, it must be a boilerplate |
| 1607 | // for an object or array literal. |
| 1608 | return transition_info()->IsJSArray() || transition_info()->IsJSObject(); |
| 1609 | } |
| 1610 | |
| 1611 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1612 | // Heuristic: We only need to create allocation site info if the boilerplate |
| 1613 | // elements kind is the initial elements kind. |
| 1614 | AllocationSiteMode AllocationSite::GetMode( |
| 1615 | ElementsKind boilerplate_elements_kind) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1616 | if (IsFastSmiElementsKind(boilerplate_elements_kind)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1617 | return TRACK_ALLOCATION_SITE; |
| 1618 | } |
| 1619 | |
| 1620 | return DONT_TRACK_ALLOCATION_SITE; |
| 1621 | } |
| 1622 | |
| 1623 | |
| 1624 | AllocationSiteMode AllocationSite::GetMode(ElementsKind from, |
| 1625 | ElementsKind to) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1626 | if (IsFastSmiElementsKind(from) && |
| 1627 | IsMoreGeneralElementsKindTransition(from, to)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1628 | return TRACK_ALLOCATION_SITE; |
| 1629 | } |
| 1630 | |
| 1631 | return DONT_TRACK_ALLOCATION_SITE; |
| 1632 | } |
| 1633 | |
| 1634 | |
| 1635 | inline bool AllocationSite::CanTrack(InstanceType type) { |
| 1636 | if (FLAG_allocation_site_pretenuring) { |
| 1637 | return type == JS_ARRAY_TYPE || |
| 1638 | type == JS_OBJECT_TYPE || |
| 1639 | type < FIRST_NONSTRING_TYPE; |
| 1640 | } |
| 1641 | return type == JS_ARRAY_TYPE; |
| 1642 | } |
| 1643 | |
| 1644 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1645 | AllocationSite::PretenureDecision AllocationSite::pretenure_decision() { |
| 1646 | int value = pretenure_data(); |
| 1647 | return PretenureDecisionBits::decode(value); |
| 1648 | } |
| 1649 | |
| 1650 | |
| 1651 | void AllocationSite::set_pretenure_decision(PretenureDecision decision) { |
| 1652 | int value = pretenure_data(); |
| 1653 | set_pretenure_data(PretenureDecisionBits::update(value, decision)); |
| 1654 | } |
| 1655 | |
| 1656 | |
| 1657 | bool AllocationSite::deopt_dependent_code() { |
| 1658 | int value = pretenure_data(); |
| 1659 | return DeoptDependentCodeBit::decode(value); |
| 1660 | } |
| 1661 | |
| 1662 | |
| 1663 | void AllocationSite::set_deopt_dependent_code(bool deopt) { |
| 1664 | int value = pretenure_data(); |
| 1665 | set_pretenure_data(DeoptDependentCodeBit::update(value, deopt)); |
| 1666 | } |
| 1667 | |
| 1668 | |
| 1669 | int AllocationSite::memento_found_count() { |
| 1670 | int value = pretenure_data(); |
| 1671 | return MementoFoundCountBits::decode(value); |
| 1672 | } |
| 1673 | |
| 1674 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1675 | inline void AllocationSite::set_memento_found_count(int count) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1676 | int value = pretenure_data(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1677 | // Verify that we can count more mementos than we can possibly find in one |
| 1678 | // new space collection. |
| 1679 | DCHECK((GetHeap()->MaxSemiSpaceSize() / |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1680 | (Heap::kMinObjectSizeInWords * kPointerSize + |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1681 | AllocationMemento::kSize)) < MementoFoundCountBits::kMax); |
| 1682 | DCHECK(count < MementoFoundCountBits::kMax); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1683 | set_pretenure_data(MementoFoundCountBits::update(value, count)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1684 | } |
| 1685 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1686 | |
| 1687 | int AllocationSite::memento_create_count() { return pretenure_create_count(); } |
| 1688 | |
| 1689 | |
| 1690 | void AllocationSite::set_memento_create_count(int count) { |
| 1691 | set_pretenure_create_count(count); |
| 1692 | } |
| 1693 | |
| 1694 | |
| 1695 | bool AllocationSite::IncrementMementoFoundCount(int increment) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1696 | if (IsZombie()) return false; |
| 1697 | |
| 1698 | int value = memento_found_count(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1699 | set_memento_found_count(value + increment); |
| 1700 | return memento_found_count() >= kPretenureMinimumCreated; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1701 | } |
| 1702 | |
| 1703 | |
| 1704 | inline void AllocationSite::IncrementMementoCreateCount() { |
| 1705 | DCHECK(FLAG_allocation_site_pretenuring); |
| 1706 | int value = memento_create_count(); |
| 1707 | set_memento_create_count(value + 1); |
| 1708 | } |
| 1709 | |
| 1710 | |
| 1711 | inline bool AllocationSite::MakePretenureDecision( |
| 1712 | PretenureDecision current_decision, |
| 1713 | double ratio, |
| 1714 | bool maximum_size_scavenge) { |
| 1715 | // Here we just allow state transitions from undecided or maybe tenure |
| 1716 | // to don't tenure, maybe tenure, or tenure. |
| 1717 | if ((current_decision == kUndecided || current_decision == kMaybeTenure)) { |
| 1718 | if (ratio >= kPretenureRatio) { |
| 1719 | // We just transition into tenure state when the semi-space was at |
| 1720 | // maximum capacity. |
| 1721 | if (maximum_size_scavenge) { |
| 1722 | set_deopt_dependent_code(true); |
| 1723 | set_pretenure_decision(kTenure); |
| 1724 | // Currently we just need to deopt when we make a state transition to |
| 1725 | // tenure. |
| 1726 | return true; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1727 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1728 | set_pretenure_decision(kMaybeTenure); |
| 1729 | } else { |
| 1730 | set_pretenure_decision(kDontTenure); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1731 | } |
| 1732 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1733 | return false; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1734 | } |
| 1735 | |
| 1736 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1737 | inline bool AllocationSite::DigestPretenuringFeedback( |
| 1738 | bool maximum_size_scavenge) { |
| 1739 | bool deopt = false; |
| 1740 | int create_count = memento_create_count(); |
| 1741 | int found_count = memento_found_count(); |
| 1742 | bool minimum_mementos_created = create_count >= kPretenureMinimumCreated; |
| 1743 | double ratio = |
| 1744 | minimum_mementos_created || FLAG_trace_pretenuring_statistics ? |
| 1745 | static_cast<double>(found_count) / create_count : 0.0; |
| 1746 | PretenureDecision current_decision = pretenure_decision(); |
| 1747 | |
| 1748 | if (minimum_mementos_created) { |
| 1749 | deopt = MakePretenureDecision( |
| 1750 | current_decision, ratio, maximum_size_scavenge); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1751 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1752 | |
| 1753 | if (FLAG_trace_pretenuring_statistics) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1754 | PrintIsolate(GetIsolate(), |
| 1755 | "pretenuring: AllocationSite(%p): (created, found, ratio) " |
| 1756 | "(%d, %d, %f) %s => %s\n", |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1757 | static_cast<void*>(this), create_count, found_count, ratio, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1758 | PretenureDecisionName(current_decision), |
| 1759 | PretenureDecisionName(pretenure_decision())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1760 | } |
| 1761 | |
| 1762 | // Clear feedback calculation fields until the next gc. |
| 1763 | set_memento_found_count(0); |
| 1764 | set_memento_create_count(0); |
| 1765 | return deopt; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1766 | } |
| 1767 | |
| 1768 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1769 | bool AllocationMemento::IsValid() { |
| 1770 | return allocation_site()->IsAllocationSite() && |
| 1771 | !AllocationSite::cast(allocation_site())->IsZombie(); |
| 1772 | } |
| 1773 | |
| 1774 | |
| 1775 | AllocationSite* AllocationMemento::GetAllocationSite() { |
| 1776 | DCHECK(IsValid()); |
| 1777 | return AllocationSite::cast(allocation_site()); |
| 1778 | } |
| 1779 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1780 | Address AllocationMemento::GetAllocationSiteUnchecked() { |
| 1781 | return reinterpret_cast<Address>(allocation_site()); |
| 1782 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1783 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1784 | void JSObject::EnsureCanContainHeapObjectElements(Handle<JSObject> object) { |
| 1785 | JSObject::ValidateElements(object); |
| 1786 | ElementsKind elements_kind = object->map()->elements_kind(); |
| 1787 | if (!IsFastObjectElementsKind(elements_kind)) { |
| 1788 | if (IsFastHoleyElementsKind(elements_kind)) { |
| 1789 | TransitionElementsKind(object, FAST_HOLEY_ELEMENTS); |
| 1790 | } else { |
| 1791 | TransitionElementsKind(object, FAST_ELEMENTS); |
| 1792 | } |
| 1793 | } |
| 1794 | } |
| 1795 | |
| 1796 | |
| 1797 | void JSObject::EnsureCanContainElements(Handle<JSObject> object, |
| 1798 | Object** objects, |
| 1799 | uint32_t count, |
| 1800 | EnsureElementsMode mode) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1801 | ElementsKind current_kind = object->GetElementsKind(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1802 | ElementsKind target_kind = current_kind; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1803 | { |
| 1804 | DisallowHeapAllocation no_allocation; |
| 1805 | DCHECK(mode != ALLOW_COPIED_DOUBLE_ELEMENTS); |
| 1806 | bool is_holey = IsFastHoleyElementsKind(current_kind); |
| 1807 | if (current_kind == FAST_HOLEY_ELEMENTS) return; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1808 | Object* the_hole = object->GetHeap()->the_hole_value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1809 | for (uint32_t i = 0; i < count; ++i) { |
| 1810 | Object* current = *objects++; |
| 1811 | if (current == the_hole) { |
| 1812 | is_holey = true; |
| 1813 | target_kind = GetHoleyElementsKind(target_kind); |
| 1814 | } else if (!current->IsSmi()) { |
| 1815 | if (mode == ALLOW_CONVERTED_DOUBLE_ELEMENTS && current->IsNumber()) { |
| 1816 | if (IsFastSmiElementsKind(target_kind)) { |
| 1817 | if (is_holey) { |
| 1818 | target_kind = FAST_HOLEY_DOUBLE_ELEMENTS; |
| 1819 | } else { |
| 1820 | target_kind = FAST_DOUBLE_ELEMENTS; |
| 1821 | } |
| 1822 | } |
| 1823 | } else if (is_holey) { |
| 1824 | target_kind = FAST_HOLEY_ELEMENTS; |
| 1825 | break; |
| 1826 | } else { |
| 1827 | target_kind = FAST_ELEMENTS; |
| 1828 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1829 | } |
| 1830 | } |
| 1831 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1832 | if (target_kind != current_kind) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1833 | TransitionElementsKind(object, target_kind); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1834 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1835 | } |
| 1836 | |
| 1837 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1838 | void JSObject::EnsureCanContainElements(Handle<JSObject> object, |
| 1839 | Handle<FixedArrayBase> elements, |
| 1840 | uint32_t length, |
| 1841 | EnsureElementsMode mode) { |
| 1842 | Heap* heap = object->GetHeap(); |
| 1843 | if (elements->map() != heap->fixed_double_array_map()) { |
| 1844 | DCHECK(elements->map() == heap->fixed_array_map() || |
| 1845 | elements->map() == heap->fixed_cow_array_map()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1846 | if (mode == ALLOW_COPIED_DOUBLE_ELEMENTS) { |
| 1847 | mode = DONT_ALLOW_DOUBLE_ELEMENTS; |
| 1848 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1849 | Object** objects = |
| 1850 | Handle<FixedArray>::cast(elements)->GetFirstElementAddress(); |
| 1851 | EnsureCanContainElements(object, objects, length, mode); |
| 1852 | return; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1853 | } |
| 1854 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1855 | DCHECK(mode == ALLOW_COPIED_DOUBLE_ELEMENTS); |
| 1856 | if (object->GetElementsKind() == FAST_HOLEY_SMI_ELEMENTS) { |
| 1857 | TransitionElementsKind(object, FAST_HOLEY_DOUBLE_ELEMENTS); |
| 1858 | } else if (object->GetElementsKind() == FAST_SMI_ELEMENTS) { |
| 1859 | Handle<FixedDoubleArray> double_array = |
| 1860 | Handle<FixedDoubleArray>::cast(elements); |
| 1861 | for (uint32_t i = 0; i < length; ++i) { |
| 1862 | if (double_array->is_the_hole(i)) { |
| 1863 | TransitionElementsKind(object, FAST_HOLEY_DOUBLE_ELEMENTS); |
| 1864 | return; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1865 | } |
| 1866 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1867 | TransitionElementsKind(object, FAST_DOUBLE_ELEMENTS); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1868 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1869 | } |
| 1870 | |
| 1871 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1872 | void JSObject::SetMapAndElements(Handle<JSObject> object, |
| 1873 | Handle<Map> new_map, |
| 1874 | Handle<FixedArrayBase> value) { |
| 1875 | JSObject::MigrateToMap(object, new_map); |
| 1876 | DCHECK((object->map()->has_fast_smi_or_object_elements() || |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1877 | (*value == object->GetHeap()->empty_fixed_array()) || |
| 1878 | object->map()->has_fast_string_wrapper_elements()) == |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1879 | (value->map() == object->GetHeap()->fixed_array_map() || |
| 1880 | value->map() == object->GetHeap()->fixed_cow_array_map())); |
| 1881 | DCHECK((*value == object->GetHeap()->empty_fixed_array()) || |
| 1882 | (object->map()->has_fast_double_elements() == |
| 1883 | value->IsFixedDoubleArray())); |
| 1884 | object->set_elements(*value); |
| 1885 | } |
| 1886 | |
| 1887 | |
| 1888 | void JSObject::set_elements(FixedArrayBase* value, WriteBarrierMode mode) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1889 | WRITE_FIELD(this, kElementsOffset, value); |
| 1890 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kElementsOffset, value, mode); |
| 1891 | } |
| 1892 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1893 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1894 | void JSObject::initialize_elements() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1895 | FixedArrayBase* elements = map()->GetInitialElements(); |
| 1896 | WRITE_FIELD(this, kElementsOffset, elements); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1897 | } |
| 1898 | |
| 1899 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1900 | InterceptorInfo* JSObject::GetIndexedInterceptor() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1901 | return map()->GetIndexedInterceptor(); |
| 1902 | } |
| 1903 | |
| 1904 | InterceptorInfo* JSObject::GetNamedInterceptor() { |
| 1905 | return map()->GetNamedInterceptor(); |
| 1906 | } |
| 1907 | |
| 1908 | InterceptorInfo* Map::GetNamedInterceptor() { |
| 1909 | DCHECK(has_named_interceptor()); |
| 1910 | JSFunction* constructor = JSFunction::cast(GetConstructor()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1911 | DCHECK(constructor->shared()->IsApiFunction()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1912 | return InterceptorInfo::cast( |
| 1913 | constructor->shared()->get_api_func_data()->named_property_handler()); |
| 1914 | } |
| 1915 | |
| 1916 | InterceptorInfo* Map::GetIndexedInterceptor() { |
| 1917 | DCHECK(has_indexed_interceptor()); |
| 1918 | JSFunction* constructor = JSFunction::cast(GetConstructor()); |
| 1919 | DCHECK(constructor->shared()->IsApiFunction()); |
| 1920 | return InterceptorInfo::cast( |
| 1921 | constructor->shared()->get_api_func_data()->indexed_property_handler()); |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 1922 | } |
| 1923 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1924 | double Oddball::to_number_raw() const { |
| 1925 | return READ_DOUBLE_FIELD(this, kToNumberRawOffset); |
| 1926 | } |
| 1927 | |
| 1928 | void Oddball::set_to_number_raw(double value) { |
| 1929 | WRITE_DOUBLE_FIELD(this, kToNumberRawOffset, value); |
| 1930 | } |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 1931 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1932 | ACCESSORS(Oddball, to_string, String, kToStringOffset) |
| 1933 | ACCESSORS(Oddball, to_number, Object, kToNumberOffset) |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1934 | ACCESSORS(Oddball, to_boolean, Oddball, kToBooleanOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1935 | ACCESSORS(Oddball, type_of, String, kTypeOfOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1936 | |
| 1937 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1938 | byte Oddball::kind() const { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1939 | return Smi::cast(READ_FIELD(this, kKindOffset))->value(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1940 | } |
| 1941 | |
| 1942 | |
| 1943 | void Oddball::set_kind(byte value) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1944 | WRITE_FIELD(this, kKindOffset, Smi::FromInt(value)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1945 | } |
| 1946 | |
| 1947 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1948 | // static |
| 1949 | Handle<Object> Oddball::ToNumber(Handle<Oddball> input) { |
| 1950 | return handle(input->to_number(), input->GetIsolate()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1951 | } |
| 1952 | |
| 1953 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1954 | ACCESSORS(Cell, value, Object, kValueOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1955 | ACCESSORS(PropertyCell, dependent_code, DependentCode, kDependentCodeOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1956 | ACCESSORS(PropertyCell, property_details_raw, Object, kDetailsOffset) |
| 1957 | ACCESSORS(PropertyCell, value, Object, kValueOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1958 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1959 | |
| 1960 | PropertyDetails PropertyCell::property_details() { |
| 1961 | return PropertyDetails(Smi::cast(property_details_raw())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1962 | } |
| 1963 | |
| 1964 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1965 | void PropertyCell::set_property_details(PropertyDetails details) { |
| 1966 | set_property_details_raw(details.AsSmi()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1967 | } |
| 1968 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1969 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1970 | Object* WeakCell::value() const { return READ_FIELD(this, kValueOffset); } |
| 1971 | |
| 1972 | |
| 1973 | void WeakCell::clear() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1974 | // Either the garbage collector is clearing the cell or we are simply |
| 1975 | // initializing the root empty weak cell. |
| 1976 | DCHECK(GetHeap()->gc_state() == Heap::MARK_COMPACT || |
| 1977 | this == GetHeap()->empty_weak_cell()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1978 | WRITE_FIELD(this, kValueOffset, Smi::FromInt(0)); |
| 1979 | } |
| 1980 | |
| 1981 | |
| 1982 | void WeakCell::initialize(HeapObject* val) { |
| 1983 | WRITE_FIELD(this, kValueOffset, val); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1984 | // We just have to execute the generational barrier here because we never |
| 1985 | // mark through a weak cell and collect evacuation candidates when we process |
| 1986 | // all weak cells. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1987 | WriteBarrierMode mode = |
| 1988 | Page::FromAddress(this->address())->IsFlagSet(Page::BLACK_PAGE) |
| 1989 | ? UPDATE_WRITE_BARRIER |
| 1990 | : UPDATE_WEAK_WRITE_BARRIER; |
| 1991 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kValueOffset, val, mode); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1992 | } |
| 1993 | |
| 1994 | |
| 1995 | bool WeakCell::cleared() const { return value() == Smi::FromInt(0); } |
| 1996 | |
| 1997 | |
| 1998 | Object* WeakCell::next() const { return READ_FIELD(this, kNextOffset); } |
| 1999 | |
| 2000 | |
| 2001 | void WeakCell::set_next(Object* val, WriteBarrierMode mode) { |
| 2002 | WRITE_FIELD(this, kNextOffset, val); |
| 2003 | if (mode == UPDATE_WRITE_BARRIER) { |
| 2004 | WRITE_BARRIER(GetHeap(), this, kNextOffset, val); |
| 2005 | } |
| 2006 | } |
| 2007 | |
| 2008 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2009 | void WeakCell::clear_next(Object* the_hole_value) { |
| 2010 | DCHECK_EQ(GetHeap()->the_hole_value(), the_hole_value); |
| 2011 | set_next(the_hole_value, SKIP_WRITE_BARRIER); |
| 2012 | } |
| 2013 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2014 | bool WeakCell::next_cleared() { return next()->IsTheHole(GetIsolate()); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2015 | |
| 2016 | int JSObject::GetHeaderSize() { return GetHeaderSize(map()->instance_type()); } |
| 2017 | |
| 2018 | |
| 2019 | int JSObject::GetHeaderSize(InstanceType type) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2020 | // Check for the most common kind of JavaScript object before |
| 2021 | // falling into the generic switch. This speeds up the internal |
| 2022 | // field operations considerably on average. |
| 2023 | if (type == JS_OBJECT_TYPE) return JSObject::kHeaderSize; |
| 2024 | switch (type) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2025 | case JS_API_OBJECT_TYPE: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2026 | case JS_SPECIAL_API_OBJECT_TYPE: |
| 2027 | return JSObject::kHeaderSize; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2028 | case JS_GENERATOR_OBJECT_TYPE: |
| 2029 | return JSGeneratorObject::kSize; |
| 2030 | case JS_MODULE_TYPE: |
| 2031 | return JSModule::kSize; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2032 | case JS_GLOBAL_PROXY_TYPE: |
| 2033 | return JSGlobalProxy::kSize; |
| 2034 | case JS_GLOBAL_OBJECT_TYPE: |
| 2035 | return JSGlobalObject::kSize; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2036 | case JS_BOUND_FUNCTION_TYPE: |
| 2037 | return JSBoundFunction::kSize; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2038 | case JS_FUNCTION_TYPE: |
| 2039 | return JSFunction::kSize; |
| 2040 | case JS_VALUE_TYPE: |
| 2041 | return JSValue::kSize; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2042 | case JS_DATE_TYPE: |
| 2043 | return JSDate::kSize; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2044 | case JS_ARRAY_TYPE: |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2045 | return JSArray::kSize; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2046 | case JS_ARRAY_BUFFER_TYPE: |
| 2047 | return JSArrayBuffer::kSize; |
| 2048 | case JS_TYPED_ARRAY_TYPE: |
| 2049 | return JSTypedArray::kSize; |
| 2050 | case JS_DATA_VIEW_TYPE: |
| 2051 | return JSDataView::kSize; |
| 2052 | case JS_SET_TYPE: |
| 2053 | return JSSet::kSize; |
| 2054 | case JS_MAP_TYPE: |
| 2055 | return JSMap::kSize; |
| 2056 | case JS_SET_ITERATOR_TYPE: |
| 2057 | return JSSetIterator::kSize; |
| 2058 | case JS_MAP_ITERATOR_TYPE: |
| 2059 | return JSMapIterator::kSize; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2060 | case JS_WEAK_MAP_TYPE: |
| 2061 | return JSWeakMap::kSize; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2062 | case JS_WEAK_SET_TYPE: |
| 2063 | return JSWeakSet::kSize; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2064 | case JS_PROMISE_TYPE: |
| 2065 | return JSObject::kHeaderSize; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2066 | case JS_REGEXP_TYPE: |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2067 | return JSRegExp::kSize; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2068 | case JS_CONTEXT_EXTENSION_OBJECT_TYPE: |
| 2069 | return JSObject::kHeaderSize; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2070 | case JS_MESSAGE_OBJECT_TYPE: |
| 2071 | return JSMessageObject::kSize; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2072 | case JS_ARGUMENTS_TYPE: |
| 2073 | return JSArgumentsObject::kHeaderSize; |
| 2074 | case JS_ERROR_TYPE: |
| 2075 | return JSObject::kHeaderSize; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2076 | default: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2077 | UNREACHABLE(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2078 | return 0; |
| 2079 | } |
| 2080 | } |
| 2081 | |
| 2082 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2083 | int JSObject::GetInternalFieldCount(Map* map) { |
| 2084 | int instance_size = map->instance_size(); |
| 2085 | if (instance_size == kVariableSizeSentinel) return 0; |
| 2086 | InstanceType instance_type = map->instance_type(); |
| 2087 | return ((instance_size - GetHeaderSize(instance_type)) >> kPointerSizeLog2) - |
| 2088 | map->GetInObjectProperties(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2089 | } |
| 2090 | |
| 2091 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2092 | int JSObject::GetInternalFieldCount() { return GetInternalFieldCount(map()); } |
| 2093 | |
| 2094 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2095 | int JSObject::GetInternalFieldOffset(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2096 | DCHECK(index < GetInternalFieldCount() && index >= 0); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2097 | return GetHeaderSize() + (kPointerSize * index); |
| 2098 | } |
| 2099 | |
| 2100 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2101 | Object* JSObject::GetInternalField(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2102 | DCHECK(index < GetInternalFieldCount() && index >= 0); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2103 | // Internal objects do follow immediately after the header, whereas in-object |
| 2104 | // properties are at the end of the object. Therefore there is no need |
| 2105 | // to adjust the index here. |
| 2106 | return READ_FIELD(this, GetHeaderSize() + (kPointerSize * index)); |
| 2107 | } |
| 2108 | |
| 2109 | |
| 2110 | void JSObject::SetInternalField(int index, Object* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2111 | DCHECK(index < GetInternalFieldCount() && index >= 0); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2112 | // Internal objects do follow immediately after the header, whereas in-object |
| 2113 | // properties are at the end of the object. Therefore there is no need |
| 2114 | // to adjust the index here. |
| 2115 | int offset = GetHeaderSize() + (kPointerSize * index); |
| 2116 | WRITE_FIELD(this, offset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2117 | WRITE_BARRIER(GetHeap(), this, offset, value); |
| 2118 | } |
| 2119 | |
| 2120 | |
| 2121 | void JSObject::SetInternalField(int index, Smi* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2122 | DCHECK(index < GetInternalFieldCount() && index >= 0); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2123 | // Internal objects do follow immediately after the header, whereas in-object |
| 2124 | // properties are at the end of the object. Therefore there is no need |
| 2125 | // to adjust the index here. |
| 2126 | int offset = GetHeaderSize() + (kPointerSize * index); |
| 2127 | WRITE_FIELD(this, offset, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2128 | } |
| 2129 | |
| 2130 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2131 | bool JSObject::IsUnboxedDoubleField(FieldIndex index) { |
| 2132 | if (!FLAG_unbox_double_fields) return false; |
| 2133 | return map()->IsUnboxedDoubleField(index); |
| 2134 | } |
| 2135 | |
| 2136 | |
| 2137 | bool Map::IsUnboxedDoubleField(FieldIndex index) { |
| 2138 | if (!FLAG_unbox_double_fields) return false; |
| 2139 | if (index.is_hidden_field() || !index.is_inobject()) return false; |
| 2140 | return !layout_descriptor()->IsTagged(index.property_index()); |
| 2141 | } |
| 2142 | |
| 2143 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2144 | // Access fast-case object properties at index. The use of these routines |
| 2145 | // is needed to correctly distinguish between properties stored in-object and |
| 2146 | // properties stored in the properties array. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2147 | Object* JSObject::RawFastPropertyAt(FieldIndex index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2148 | DCHECK(!IsUnboxedDoubleField(index)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2149 | if (index.is_inobject()) { |
| 2150 | return READ_FIELD(this, index.offset()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2151 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2152 | return properties()->get(index.outobject_array_index()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2153 | } |
| 2154 | } |
| 2155 | |
| 2156 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2157 | double JSObject::RawFastDoublePropertyAt(FieldIndex index) { |
| 2158 | DCHECK(IsUnboxedDoubleField(index)); |
| 2159 | return READ_DOUBLE_FIELD(this, index.offset()); |
| 2160 | } |
| 2161 | |
| 2162 | |
| 2163 | void JSObject::RawFastPropertyAtPut(FieldIndex index, Object* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2164 | if (index.is_inobject()) { |
| 2165 | int offset = index.offset(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2166 | WRITE_FIELD(this, offset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2167 | WRITE_BARRIER(GetHeap(), this, offset, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2168 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2169 | properties()->set(index.outobject_array_index(), value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2170 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2171 | } |
| 2172 | |
| 2173 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2174 | void JSObject::RawFastDoublePropertyAtPut(FieldIndex index, double value) { |
| 2175 | WRITE_DOUBLE_FIELD(this, index.offset(), value); |
| 2176 | } |
| 2177 | |
| 2178 | |
| 2179 | void JSObject::FastPropertyAtPut(FieldIndex index, Object* value) { |
| 2180 | if (IsUnboxedDoubleField(index)) { |
| 2181 | DCHECK(value->IsMutableHeapNumber()); |
| 2182 | RawFastDoublePropertyAtPut(index, HeapNumber::cast(value)->value()); |
| 2183 | } else { |
| 2184 | RawFastPropertyAtPut(index, value); |
| 2185 | } |
| 2186 | } |
| 2187 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2188 | void JSObject::WriteToField(int descriptor, PropertyDetails details, |
| 2189 | Object* value) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2190 | DCHECK(details.type() == DATA); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2191 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2192 | FieldIndex index = FieldIndex::ForDescriptor(map(), descriptor); |
| 2193 | if (details.representation().IsDouble()) { |
| 2194 | // Nothing more to be done. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2195 | if (value->IsUninitialized(this->GetIsolate())) { |
| 2196 | return; |
| 2197 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2198 | if (IsUnboxedDoubleField(index)) { |
| 2199 | RawFastDoublePropertyAtPut(index, value->Number()); |
| 2200 | } else { |
| 2201 | HeapNumber* box = HeapNumber::cast(RawFastPropertyAt(index)); |
| 2202 | DCHECK(box->IsMutableHeapNumber()); |
| 2203 | box->set_value(value->Number()); |
| 2204 | } |
| 2205 | } else { |
| 2206 | RawFastPropertyAtPut(index, value); |
| 2207 | } |
| 2208 | } |
| 2209 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2210 | void JSObject::WriteToField(int descriptor, Object* value) { |
| 2211 | DescriptorArray* desc = map()->instance_descriptors(); |
| 2212 | PropertyDetails details = desc->GetDetails(descriptor); |
| 2213 | WriteToField(descriptor, details, value); |
| 2214 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2215 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2216 | int JSObject::GetInObjectPropertyOffset(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2217 | return map()->GetInObjectPropertyOffset(index); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2218 | } |
| 2219 | |
| 2220 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2221 | Object* JSObject::InObjectPropertyAt(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2222 | int offset = GetInObjectPropertyOffset(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2223 | return READ_FIELD(this, offset); |
| 2224 | } |
| 2225 | |
| 2226 | |
| 2227 | Object* JSObject::InObjectPropertyAtPut(int index, |
| 2228 | Object* value, |
| 2229 | WriteBarrierMode mode) { |
| 2230 | // Adjust for the number of properties stored in the object. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2231 | int offset = GetInObjectPropertyOffset(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2232 | WRITE_FIELD(this, offset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2233 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, value, mode); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2234 | return value; |
| 2235 | } |
| 2236 | |
| 2237 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2238 | void JSObject::InitializeBody(Map* map, int start_offset, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2239 | Object* pre_allocated_value, |
| 2240 | Object* filler_value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2241 | DCHECK(!filler_value->IsHeapObject() || |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2242 | !GetHeap()->InNewSpace(filler_value)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2243 | DCHECK(!pre_allocated_value->IsHeapObject() || |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2244 | !GetHeap()->InNewSpace(pre_allocated_value)); |
| 2245 | int size = map->instance_size(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2246 | int offset = start_offset; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2247 | if (filler_value != pre_allocated_value) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2248 | int end_of_pre_allocated_offset = |
| 2249 | size - (map->unused_property_fields() * kPointerSize); |
| 2250 | DCHECK_LE(kHeaderSize, end_of_pre_allocated_offset); |
| 2251 | while (offset < end_of_pre_allocated_offset) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2252 | WRITE_FIELD(this, offset, pre_allocated_value); |
| 2253 | offset += kPointerSize; |
| 2254 | } |
| 2255 | } |
| 2256 | while (offset < size) { |
| 2257 | WRITE_FIELD(this, offset, filler_value); |
| 2258 | offset += kPointerSize; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2259 | } |
| 2260 | } |
| 2261 | |
| 2262 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2263 | bool Map::TooManyFastProperties(StoreFromKeyed store_mode) { |
| 2264 | if (unused_property_fields() != 0) return false; |
| 2265 | if (is_prototype_map()) return false; |
| 2266 | int minimum = store_mode == CERTAINLY_NOT_STORE_FROM_KEYED ? 128 : 12; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2267 | int limit = Max(minimum, GetInObjectProperties()); |
| 2268 | int external = NumberOfFields() - GetInObjectProperties(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2269 | return external > limit; |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 2270 | } |
| 2271 | |
| 2272 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2273 | void Struct::InitializeBody(int object_size) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2274 | Object* value = GetHeap()->undefined_value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2275 | for (int offset = kHeaderSize; offset < object_size; offset += kPointerSize) { |
| 2276 | WRITE_FIELD(this, offset, value); |
| 2277 | } |
| 2278 | } |
| 2279 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2280 | bool Object::ToArrayLength(uint32_t* index) { return Object::ToUint32(index); } |
| 2281 | |
| 2282 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2283 | bool Object::ToArrayIndex(uint32_t* index) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2284 | return Object::ToUint32(index) && *index != kMaxUInt32; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2285 | } |
| 2286 | |
| 2287 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2288 | void Object::VerifyApiCallResultType() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2289 | #if DEBUG |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2290 | if (IsSmi()) return; |
| 2291 | DCHECK(IsHeapObject()); |
| 2292 | Isolate* isolate = HeapObject::cast(this)->GetIsolate(); |
| 2293 | if (!(IsString() || IsSymbol() || IsJSReceiver() || IsHeapNumber() || |
| 2294 | IsSimd128Value() || IsUndefined(isolate) || IsTrue(isolate) || |
| 2295 | IsFalse(isolate) || IsNull(isolate))) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2296 | FATAL("API call returned invalid object"); |
| 2297 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2298 | #endif // DEBUG |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2299 | } |
| 2300 | |
| 2301 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2302 | Object* FixedArray::get(int index) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2303 | SLOW_DCHECK(index >= 0 && index < this->length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2304 | return READ_FIELD(this, kHeaderSize + index * kPointerSize); |
| 2305 | } |
| 2306 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2307 | Handle<Object> FixedArray::get(FixedArray* array, int index, Isolate* isolate) { |
| 2308 | return handle(array->get(index), isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2309 | } |
| 2310 | |
| 2311 | |
| 2312 | bool FixedArray::is_the_hole(int index) { |
| 2313 | return get(index) == GetHeap()->the_hole_value(); |
| 2314 | } |
| 2315 | |
| 2316 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2317 | void FixedArray::set(int index, Smi* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2318 | DCHECK(map() != GetHeap()->fixed_cow_array_map()); |
| 2319 | DCHECK(index >= 0 && index < this->length()); |
| 2320 | DCHECK(reinterpret_cast<Object*>(value)->IsSmi()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2321 | int offset = kHeaderSize + index * kPointerSize; |
| 2322 | WRITE_FIELD(this, offset, value); |
| 2323 | } |
| 2324 | |
| 2325 | |
| 2326 | void FixedArray::set(int index, Object* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2327 | DCHECK_NE(GetHeap()->fixed_cow_array_map(), map()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2328 | DCHECK(IsFixedArray()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2329 | DCHECK_GE(index, 0); |
| 2330 | DCHECK_LT(index, this->length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2331 | int offset = kHeaderSize + index * kPointerSize; |
| 2332 | WRITE_FIELD(this, offset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2333 | WRITE_BARRIER(GetHeap(), this, offset, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2334 | } |
| 2335 | |
| 2336 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2337 | double FixedDoubleArray::get_scalar(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2338 | DCHECK(map() != GetHeap()->fixed_cow_array_map() && |
| 2339 | map() != GetHeap()->fixed_array_map()); |
| 2340 | DCHECK(index >= 0 && index < this->length()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2341 | DCHECK(!is_the_hole(index)); |
| 2342 | return READ_DOUBLE_FIELD(this, kHeaderSize + index * kDoubleSize); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2343 | } |
| 2344 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2345 | |
| 2346 | uint64_t FixedDoubleArray::get_representation(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2347 | DCHECK(map() != GetHeap()->fixed_cow_array_map() && |
| 2348 | map() != GetHeap()->fixed_array_map()); |
| 2349 | DCHECK(index >= 0 && index < this->length()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2350 | int offset = kHeaderSize + index * kDoubleSize; |
| 2351 | return READ_UINT64_FIELD(this, offset); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2352 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2353 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2354 | Handle<Object> FixedDoubleArray::get(FixedDoubleArray* array, int index, |
| 2355 | Isolate* isolate) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2356 | if (array->is_the_hole(index)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2357 | return isolate->factory()->the_hole_value(); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2358 | } else { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2359 | return isolate->factory()->NewNumber(array->get_scalar(index)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2360 | } |
| 2361 | } |
| 2362 | |
| 2363 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2364 | void FixedDoubleArray::set(int index, double value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2365 | DCHECK(map() != GetHeap()->fixed_cow_array_map() && |
| 2366 | map() != GetHeap()->fixed_array_map()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2367 | int offset = kHeaderSize + index * kDoubleSize; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2368 | if (std::isnan(value)) { |
| 2369 | WRITE_DOUBLE_FIELD(this, offset, std::numeric_limits<double>::quiet_NaN()); |
| 2370 | } else { |
| 2371 | WRITE_DOUBLE_FIELD(this, offset, value); |
| 2372 | } |
| 2373 | DCHECK(!is_the_hole(index)); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2374 | } |
| 2375 | |
| 2376 | |
| 2377 | void FixedDoubleArray::set_the_hole(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2378 | DCHECK(map() != GetHeap()->fixed_cow_array_map() && |
| 2379 | map() != GetHeap()->fixed_array_map()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2380 | int offset = kHeaderSize + index * kDoubleSize; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2381 | WRITE_UINT64_FIELD(this, offset, kHoleNanInt64); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2382 | } |
| 2383 | |
| 2384 | |
| 2385 | bool FixedDoubleArray::is_the_hole(int index) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2386 | return get_representation(index) == kHoleNanInt64; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2387 | } |
| 2388 | |
| 2389 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2390 | double* FixedDoubleArray::data_start() { |
| 2391 | return reinterpret_cast<double*>(FIELD_ADDR(this, kHeaderSize)); |
| 2392 | } |
| 2393 | |
| 2394 | |
| 2395 | void FixedDoubleArray::FillWithHoles(int from, int to) { |
| 2396 | for (int i = from; i < to; i++) { |
| 2397 | set_the_hole(i); |
| 2398 | } |
| 2399 | } |
| 2400 | |
| 2401 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2402 | Object* WeakFixedArray::Get(int index) const { |
| 2403 | Object* raw = FixedArray::cast(this)->get(index + kFirstIndex); |
| 2404 | if (raw->IsSmi()) return raw; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2405 | DCHECK(raw->IsWeakCell()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2406 | return WeakCell::cast(raw)->value(); |
| 2407 | } |
| 2408 | |
| 2409 | |
| 2410 | bool WeakFixedArray::IsEmptySlot(int index) const { |
| 2411 | DCHECK(index < Length()); |
| 2412 | return Get(index)->IsSmi(); |
| 2413 | } |
| 2414 | |
| 2415 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2416 | void WeakFixedArray::Clear(int index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2417 | FixedArray::cast(this)->set(index + kFirstIndex, Smi::FromInt(0)); |
| 2418 | } |
| 2419 | |
| 2420 | |
| 2421 | int WeakFixedArray::Length() const { |
| 2422 | return FixedArray::cast(this)->length() - kFirstIndex; |
| 2423 | } |
| 2424 | |
| 2425 | |
| 2426 | int WeakFixedArray::last_used_index() const { |
| 2427 | return Smi::cast(FixedArray::cast(this)->get(kLastUsedIndexIndex))->value(); |
| 2428 | } |
| 2429 | |
| 2430 | |
| 2431 | void WeakFixedArray::set_last_used_index(int index) { |
| 2432 | FixedArray::cast(this)->set(kLastUsedIndexIndex, Smi::FromInt(index)); |
| 2433 | } |
| 2434 | |
| 2435 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2436 | template <class T> |
| 2437 | T* WeakFixedArray::Iterator::Next() { |
| 2438 | if (list_ != NULL) { |
| 2439 | // Assert that list did not change during iteration. |
| 2440 | DCHECK_EQ(last_used_index_, list_->last_used_index()); |
| 2441 | while (index_ < list_->Length()) { |
| 2442 | Object* item = list_->Get(index_++); |
| 2443 | if (item != Empty()) return T::cast(item); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2444 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2445 | list_ = NULL; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2446 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2447 | return NULL; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2448 | } |
| 2449 | |
| 2450 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2451 | int ArrayList::Length() { |
| 2452 | if (FixedArray::cast(this)->length() == 0) return 0; |
| 2453 | return Smi::cast(FixedArray::cast(this)->get(kLengthIndex))->value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2454 | } |
| 2455 | |
| 2456 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2457 | void ArrayList::SetLength(int length) { |
| 2458 | return FixedArray::cast(this)->set(kLengthIndex, Smi::FromInt(length)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2459 | } |
| 2460 | |
| 2461 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2462 | Object* ArrayList::Get(int index) { |
| 2463 | return FixedArray::cast(this)->get(kFirstIndex + index); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2464 | } |
| 2465 | |
| 2466 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2467 | Object** ArrayList::Slot(int index) { |
| 2468 | return data_start() + kFirstIndex + index; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2469 | } |
| 2470 | |
| 2471 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2472 | void ArrayList::Set(int index, Object* obj) { |
| 2473 | FixedArray::cast(this)->set(kFirstIndex + index, obj); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2474 | } |
| 2475 | |
| 2476 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2477 | void ArrayList::Clear(int index, Object* undefined) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2478 | DCHECK(undefined->IsUndefined(GetIsolate())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2479 | FixedArray::cast(this) |
| 2480 | ->set(kFirstIndex + index, undefined, SKIP_WRITE_BARRIER); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2481 | } |
| 2482 | |
| 2483 | |
| 2484 | WriteBarrierMode HeapObject::GetWriteBarrierMode( |
| 2485 | const DisallowHeapAllocation& promise) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2486 | Heap* heap = GetHeap(); |
| 2487 | if (heap->incremental_marking()->IsMarking()) return UPDATE_WRITE_BARRIER; |
| 2488 | if (heap->InNewSpace(this)) return SKIP_WRITE_BARRIER; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2489 | return UPDATE_WRITE_BARRIER; |
| 2490 | } |
| 2491 | |
| 2492 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2493 | AllocationAlignment HeapObject::RequiredAlignment() { |
| 2494 | #ifdef V8_HOST_ARCH_32_BIT |
| 2495 | if ((IsFixedFloat64Array() || IsFixedDoubleArray()) && |
| 2496 | FixedArrayBase::cast(this)->length() != 0) { |
| 2497 | return kDoubleAligned; |
| 2498 | } |
| 2499 | if (IsHeapNumber()) return kDoubleUnaligned; |
| 2500 | if (IsSimd128Value()) return kSimd128Unaligned; |
| 2501 | #endif // V8_HOST_ARCH_32_BIT |
| 2502 | return kWordAligned; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2503 | } |
| 2504 | |
| 2505 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2506 | void FixedArray::set(int index, |
| 2507 | Object* value, |
| 2508 | WriteBarrierMode mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2509 | DCHECK(map() != GetHeap()->fixed_cow_array_map()); |
| 2510 | DCHECK(index >= 0 && index < this->length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2511 | int offset = kHeaderSize + index * kPointerSize; |
| 2512 | WRITE_FIELD(this, offset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2513 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, value, mode); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2514 | } |
| 2515 | |
| 2516 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2517 | void FixedArray::NoWriteBarrierSet(FixedArray* array, |
| 2518 | int index, |
| 2519 | Object* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2520 | DCHECK(array->map() != array->GetHeap()->fixed_cow_array_map()); |
| 2521 | DCHECK(index >= 0 && index < array->length()); |
| 2522 | DCHECK(!array->GetHeap()->InNewSpace(value)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2523 | WRITE_FIELD(array, kHeaderSize + index * kPointerSize, value); |
| 2524 | } |
| 2525 | |
| 2526 | |
| 2527 | void FixedArray::set_undefined(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2528 | DCHECK(map() != GetHeap()->fixed_cow_array_map()); |
| 2529 | DCHECK(index >= 0 && index < this->length()); |
| 2530 | DCHECK(!GetHeap()->InNewSpace(GetHeap()->undefined_value())); |
| 2531 | WRITE_FIELD(this, |
| 2532 | kHeaderSize + index * kPointerSize, |
| 2533 | GetHeap()->undefined_value()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2534 | } |
| 2535 | |
| 2536 | |
| 2537 | void FixedArray::set_null(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2538 | DCHECK(index >= 0 && index < this->length()); |
| 2539 | DCHECK(!GetHeap()->InNewSpace(GetHeap()->null_value())); |
| 2540 | WRITE_FIELD(this, |
| 2541 | kHeaderSize + index * kPointerSize, |
| 2542 | GetHeap()->null_value()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2543 | } |
| 2544 | |
| 2545 | |
| 2546 | void FixedArray::set_the_hole(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2547 | DCHECK(map() != GetHeap()->fixed_cow_array_map()); |
| 2548 | DCHECK(index >= 0 && index < this->length()); |
| 2549 | DCHECK(!GetHeap()->InNewSpace(GetHeap()->the_hole_value())); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2550 | WRITE_FIELD(this, |
| 2551 | kHeaderSize + index * kPointerSize, |
| 2552 | GetHeap()->the_hole_value()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2553 | } |
| 2554 | |
| 2555 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2556 | void FixedArray::FillWithHoles(int from, int to) { |
| 2557 | for (int i = from; i < to; i++) { |
| 2558 | set_the_hole(i); |
| 2559 | } |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2560 | } |
| 2561 | |
| 2562 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2563 | Object** FixedArray::data_start() { |
| 2564 | return HeapObject::RawField(this, kHeaderSize); |
| 2565 | } |
| 2566 | |
| 2567 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2568 | Object** FixedArray::RawFieldOfElementAt(int index) { |
| 2569 | return HeapObject::RawField(this, OffsetOfElementAt(index)); |
| 2570 | } |
| 2571 | |
| 2572 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2573 | bool DescriptorArray::IsEmpty() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2574 | DCHECK(length() >= kFirstIndex || |
| 2575 | this == GetHeap()->empty_descriptor_array()); |
| 2576 | return length() < kFirstIndex; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2577 | } |
| 2578 | |
| 2579 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2580 | int DescriptorArray::number_of_descriptors() { |
| 2581 | DCHECK(length() >= kFirstIndex || IsEmpty()); |
| 2582 | int len = length(); |
| 2583 | return len == 0 ? 0 : Smi::cast(get(kDescriptorLengthIndex))->value(); |
| 2584 | } |
| 2585 | |
| 2586 | |
| 2587 | int DescriptorArray::number_of_descriptors_storage() { |
| 2588 | int len = length(); |
| 2589 | return len == 0 ? 0 : (len - kFirstIndex) / kDescriptorSize; |
| 2590 | } |
| 2591 | |
| 2592 | |
| 2593 | int DescriptorArray::NumberOfSlackDescriptors() { |
| 2594 | return number_of_descriptors_storage() - number_of_descriptors(); |
| 2595 | } |
| 2596 | |
| 2597 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2598 | void DescriptorArray::SetNumberOfDescriptors(int number_of_descriptors) { |
| 2599 | WRITE_FIELD( |
| 2600 | this, kDescriptorLengthOffset, Smi::FromInt(number_of_descriptors)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2601 | } |
| 2602 | |
| 2603 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2604 | inline int DescriptorArray::number_of_entries() { |
| 2605 | return number_of_descriptors(); |
| 2606 | } |
| 2607 | |
| 2608 | |
| 2609 | bool DescriptorArray::HasEnumCache() { |
| 2610 | return !IsEmpty() && !get(kEnumCacheIndex)->IsSmi(); |
| 2611 | } |
| 2612 | |
| 2613 | |
| 2614 | void DescriptorArray::CopyEnumCacheFrom(DescriptorArray* array) { |
| 2615 | set(kEnumCacheIndex, array->get(kEnumCacheIndex)); |
| 2616 | } |
| 2617 | |
| 2618 | |
| 2619 | FixedArray* DescriptorArray::GetEnumCache() { |
| 2620 | DCHECK(HasEnumCache()); |
| 2621 | FixedArray* bridge = FixedArray::cast(get(kEnumCacheIndex)); |
| 2622 | return FixedArray::cast(bridge->get(kEnumCacheBridgeCacheIndex)); |
| 2623 | } |
| 2624 | |
| 2625 | |
| 2626 | bool DescriptorArray::HasEnumIndicesCache() { |
| 2627 | if (IsEmpty()) return false; |
| 2628 | Object* object = get(kEnumCacheIndex); |
| 2629 | if (object->IsSmi()) return false; |
| 2630 | FixedArray* bridge = FixedArray::cast(object); |
| 2631 | return !bridge->get(kEnumCacheBridgeIndicesCacheIndex)->IsSmi(); |
| 2632 | } |
| 2633 | |
| 2634 | |
| 2635 | FixedArray* DescriptorArray::GetEnumIndicesCache() { |
| 2636 | DCHECK(HasEnumIndicesCache()); |
| 2637 | FixedArray* bridge = FixedArray::cast(get(kEnumCacheIndex)); |
| 2638 | return FixedArray::cast(bridge->get(kEnumCacheBridgeIndicesCacheIndex)); |
| 2639 | } |
| 2640 | |
| 2641 | |
| 2642 | Object** DescriptorArray::GetEnumCacheSlot() { |
| 2643 | DCHECK(HasEnumCache()); |
| 2644 | return HeapObject::RawField(reinterpret_cast<HeapObject*>(this), |
| 2645 | kEnumCacheOffset); |
| 2646 | } |
| 2647 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2648 | // Perform a binary search in a fixed array. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2649 | template <SearchMode search_mode, typename T> |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2650 | int BinarySearch(T* array, Name* name, int valid_entries, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2651 | int* out_insertion_index) { |
| 2652 | DCHECK(search_mode == ALL_ENTRIES || out_insertion_index == NULL); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2653 | int low = 0; |
| 2654 | int high = array->number_of_entries() - 1; |
| 2655 | uint32_t hash = name->hash_field(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2656 | int limit = high; |
| 2657 | |
| 2658 | DCHECK(low <= high); |
| 2659 | |
| 2660 | while (low != high) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2661 | int mid = low + (high - low) / 2; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2662 | Name* mid_name = array->GetSortedKey(mid); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2663 | uint32_t mid_hash = mid_name->hash_field(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2664 | |
| 2665 | if (mid_hash >= hash) { |
| 2666 | high = mid; |
| 2667 | } else { |
| 2668 | low = mid + 1; |
| 2669 | } |
| 2670 | } |
| 2671 | |
| 2672 | for (; low <= limit; ++low) { |
| 2673 | int sort_index = array->GetSortedKeyIndex(low); |
| 2674 | Name* entry = array->GetKey(sort_index); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2675 | uint32_t current_hash = entry->hash_field(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2676 | if (current_hash != hash) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2677 | if (search_mode == ALL_ENTRIES && out_insertion_index != nullptr) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2678 | *out_insertion_index = sort_index + (current_hash > hash ? 0 : 1); |
| 2679 | } |
| 2680 | return T::kNotFound; |
| 2681 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2682 | if (entry == name) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2683 | if (search_mode == ALL_ENTRIES || sort_index < valid_entries) { |
| 2684 | return sort_index; |
| 2685 | } |
| 2686 | return T::kNotFound; |
| 2687 | } |
| 2688 | } |
| 2689 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2690 | if (search_mode == ALL_ENTRIES && out_insertion_index != nullptr) { |
| 2691 | *out_insertion_index = limit + 1; |
| 2692 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2693 | return T::kNotFound; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2694 | } |
| 2695 | |
| 2696 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2697 | // Perform a linear search in this fixed array. len is the number of entry |
| 2698 | // indices that are valid. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2699 | template <SearchMode search_mode, typename T> |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2700 | int LinearSearch(T* array, Name* name, int valid_entries, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2701 | int* out_insertion_index) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2702 | if (search_mode == ALL_ENTRIES && out_insertion_index != nullptr) { |
| 2703 | uint32_t hash = name->hash_field(); |
| 2704 | int len = array->number_of_entries(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2705 | for (int number = 0; number < len; number++) { |
| 2706 | int sorted_index = array->GetSortedKeyIndex(number); |
| 2707 | Name* entry = array->GetKey(sorted_index); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2708 | uint32_t current_hash = entry->hash_field(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2709 | if (current_hash > hash) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2710 | *out_insertion_index = sorted_index; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2711 | return T::kNotFound; |
| 2712 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2713 | if (entry == name) return sorted_index; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2714 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2715 | *out_insertion_index = len; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2716 | return T::kNotFound; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2717 | } else { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2718 | DCHECK_LE(valid_entries, array->number_of_entries()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2719 | DCHECK_NULL(out_insertion_index); // Not supported here. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2720 | for (int number = 0; number < valid_entries; number++) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2721 | if (array->GetKey(number) == name) return number; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2722 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2723 | return T::kNotFound; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2724 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2725 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2726 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2727 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2728 | template <SearchMode search_mode, typename T> |
| 2729 | int Search(T* array, Name* name, int valid_entries, int* out_insertion_index) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2730 | SLOW_DCHECK(array->IsSortedNoDuplicates()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2731 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2732 | if (valid_entries == 0) { |
| 2733 | if (search_mode == ALL_ENTRIES && out_insertion_index != nullptr) { |
| 2734 | *out_insertion_index = 0; |
| 2735 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2736 | return T::kNotFound; |
| 2737 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2738 | |
| 2739 | // Fast case: do linear search for small arrays. |
| 2740 | const int kMaxElementsForLinearSearch = 8; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2741 | if (valid_entries <= kMaxElementsForLinearSearch) { |
| 2742 | return LinearSearch<search_mode>(array, name, valid_entries, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2743 | out_insertion_index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2744 | } |
| 2745 | |
| 2746 | // Slow case: perform binary search. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2747 | return BinarySearch<search_mode>(array, name, valid_entries, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2748 | out_insertion_index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2749 | } |
| 2750 | |
| 2751 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2752 | int DescriptorArray::Search(Name* name, int valid_descriptors) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2753 | DCHECK(name->IsUniqueName()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2754 | return internal::Search<VALID_ENTRIES>(this, name, valid_descriptors, NULL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2755 | } |
| 2756 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2757 | int DescriptorArray::SearchWithCache(Isolate* isolate, Name* name, Map* map) { |
| 2758 | DCHECK(name->IsUniqueName()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2759 | int number_of_own_descriptors = map->NumberOfOwnDescriptors(); |
| 2760 | if (number_of_own_descriptors == 0) return kNotFound; |
| 2761 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2762 | DescriptorLookupCache* cache = isolate->descriptor_lookup_cache(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2763 | int number = cache->Lookup(map, name); |
| 2764 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2765 | if (number == DescriptorLookupCache::kAbsent) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2766 | number = Search(name, number_of_own_descriptors); |
| 2767 | cache->Update(map, name, number); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2768 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2769 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2770 | return number; |
| 2771 | } |
| 2772 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2773 | PropertyDetails Map::GetLastDescriptorDetails() { |
| 2774 | return instance_descriptors()->GetDetails(LastAdded()); |
| 2775 | } |
| 2776 | |
| 2777 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2778 | int Map::LastAdded() { |
| 2779 | int number_of_own_descriptors = NumberOfOwnDescriptors(); |
| 2780 | DCHECK(number_of_own_descriptors > 0); |
| 2781 | return number_of_own_descriptors - 1; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2782 | } |
| 2783 | |
| 2784 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2785 | int Map::NumberOfOwnDescriptors() { |
| 2786 | return NumberOfOwnDescriptorsBits::decode(bit_field3()); |
| 2787 | } |
| 2788 | |
| 2789 | |
| 2790 | void Map::SetNumberOfOwnDescriptors(int number) { |
| 2791 | DCHECK(number <= instance_descriptors()->number_of_descriptors()); |
| 2792 | set_bit_field3(NumberOfOwnDescriptorsBits::update(bit_field3(), number)); |
| 2793 | } |
| 2794 | |
| 2795 | |
| 2796 | int Map::EnumLength() { return EnumLengthBits::decode(bit_field3()); } |
| 2797 | |
| 2798 | |
| 2799 | void Map::SetEnumLength(int length) { |
| 2800 | if (length != kInvalidEnumCacheSentinel) { |
| 2801 | DCHECK(length >= 0); |
| 2802 | DCHECK(length == 0 || instance_descriptors()->HasEnumCache()); |
| 2803 | DCHECK(length <= NumberOfOwnDescriptors()); |
| 2804 | } |
| 2805 | set_bit_field3(EnumLengthBits::update(bit_field3(), length)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2806 | } |
| 2807 | |
| 2808 | |
| 2809 | FixedArrayBase* Map::GetInitialElements() { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2810 | FixedArrayBase* result = nullptr; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2811 | if (has_fast_elements() || has_fast_string_wrapper_elements()) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2812 | result = GetHeap()->empty_fixed_array(); |
| 2813 | } else if (has_fast_sloppy_arguments_elements()) { |
| 2814 | result = GetHeap()->empty_sloppy_arguments_elements(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2815 | } else if (has_fixed_typed_array_elements()) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2816 | result = GetHeap()->EmptyFixedTypedArrayForMap(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2817 | } else { |
| 2818 | UNREACHABLE(); |
| 2819 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2820 | DCHECK(!GetHeap()->InNewSpace(result)); |
| 2821 | return result; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2822 | } |
| 2823 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2824 | // static |
| 2825 | Handle<Map> Map::ReconfigureProperty(Handle<Map> map, int modify_index, |
| 2826 | PropertyKind new_kind, |
| 2827 | PropertyAttributes new_attributes, |
| 2828 | Representation new_representation, |
| 2829 | Handle<FieldType> new_field_type, |
| 2830 | StoreMode store_mode) { |
| 2831 | return Reconfigure(map, map->elements_kind(), modify_index, new_kind, |
| 2832 | new_attributes, new_representation, new_field_type, |
| 2833 | store_mode); |
| 2834 | } |
| 2835 | |
| 2836 | // static |
| 2837 | Handle<Map> Map::ReconfigureElementsKind(Handle<Map> map, |
| 2838 | ElementsKind new_elements_kind) { |
| 2839 | return Reconfigure(map, new_elements_kind, -1, kData, NONE, |
| 2840 | Representation::None(), FieldType::None(map->GetIsolate()), |
| 2841 | ALLOW_IN_DESCRIPTOR); |
| 2842 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2843 | |
| 2844 | Object** DescriptorArray::GetKeySlot(int descriptor_number) { |
| 2845 | DCHECK(descriptor_number < number_of_descriptors()); |
| 2846 | return RawFieldOfElementAt(ToKeyIndex(descriptor_number)); |
| 2847 | } |
| 2848 | |
| 2849 | |
| 2850 | Object** DescriptorArray::GetDescriptorStartSlot(int descriptor_number) { |
| 2851 | return GetKeySlot(descriptor_number); |
| 2852 | } |
| 2853 | |
| 2854 | |
| 2855 | Object** DescriptorArray::GetDescriptorEndSlot(int descriptor_number) { |
| 2856 | return GetValueSlot(descriptor_number - 1) + 1; |
| 2857 | } |
| 2858 | |
| 2859 | |
| 2860 | Name* DescriptorArray::GetKey(int descriptor_number) { |
| 2861 | DCHECK(descriptor_number < number_of_descriptors()); |
| 2862 | return Name::cast(get(ToKeyIndex(descriptor_number))); |
| 2863 | } |
| 2864 | |
| 2865 | |
| 2866 | int DescriptorArray::GetSortedKeyIndex(int descriptor_number) { |
| 2867 | return GetDetails(descriptor_number).pointer(); |
| 2868 | } |
| 2869 | |
| 2870 | |
| 2871 | Name* DescriptorArray::GetSortedKey(int descriptor_number) { |
| 2872 | return GetKey(GetSortedKeyIndex(descriptor_number)); |
| 2873 | } |
| 2874 | |
| 2875 | |
| 2876 | void DescriptorArray::SetSortedKey(int descriptor_index, int pointer) { |
| 2877 | PropertyDetails details = GetDetails(descriptor_index); |
| 2878 | set(ToDetailsIndex(descriptor_index), details.set_pointer(pointer).AsSmi()); |
| 2879 | } |
| 2880 | |
| 2881 | |
| 2882 | void DescriptorArray::SetRepresentation(int descriptor_index, |
| 2883 | Representation representation) { |
| 2884 | DCHECK(!representation.IsNone()); |
| 2885 | PropertyDetails details = GetDetails(descriptor_index); |
| 2886 | set(ToDetailsIndex(descriptor_index), |
| 2887 | details.CopyWithRepresentation(representation).AsSmi()); |
| 2888 | } |
| 2889 | |
| 2890 | |
| 2891 | Object** DescriptorArray::GetValueSlot(int descriptor_number) { |
| 2892 | DCHECK(descriptor_number < number_of_descriptors()); |
| 2893 | return RawFieldOfElementAt(ToValueIndex(descriptor_number)); |
| 2894 | } |
| 2895 | |
| 2896 | |
| 2897 | int DescriptorArray::GetValueOffset(int descriptor_number) { |
| 2898 | return OffsetOfElementAt(ToValueIndex(descriptor_number)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2899 | } |
| 2900 | |
| 2901 | |
| 2902 | Object* DescriptorArray::GetValue(int descriptor_number) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2903 | DCHECK(descriptor_number < number_of_descriptors()); |
| 2904 | return get(ToValueIndex(descriptor_number)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2905 | } |
| 2906 | |
| 2907 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2908 | void DescriptorArray::SetValue(int descriptor_index, Object* value) { |
| 2909 | set(ToValueIndex(descriptor_index), value); |
| 2910 | } |
| 2911 | |
| 2912 | |
| 2913 | PropertyDetails DescriptorArray::GetDetails(int descriptor_number) { |
| 2914 | DCHECK(descriptor_number < number_of_descriptors()); |
| 2915 | Object* details = get(ToDetailsIndex(descriptor_number)); |
| 2916 | return PropertyDetails(Smi::cast(details)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2917 | } |
| 2918 | |
| 2919 | |
| 2920 | PropertyType DescriptorArray::GetType(int descriptor_number) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2921 | return GetDetails(descriptor_number).type(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2922 | } |
| 2923 | |
| 2924 | |
| 2925 | int DescriptorArray::GetFieldIndex(int descriptor_number) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2926 | DCHECK(GetDetails(descriptor_number).location() == kField); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2927 | return GetDetails(descriptor_number).field_index(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2928 | } |
| 2929 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2930 | Object* DescriptorArray::GetConstant(int descriptor_number) { |
| 2931 | return GetValue(descriptor_number); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2932 | } |
| 2933 | |
| 2934 | |
| 2935 | Object* DescriptorArray::GetCallbacksObject(int descriptor_number) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2936 | DCHECK(GetType(descriptor_number) == ACCESSOR_CONSTANT); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2937 | return GetValue(descriptor_number); |
| 2938 | } |
| 2939 | |
| 2940 | |
| 2941 | AccessorDescriptor* DescriptorArray::GetCallbacks(int descriptor_number) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2942 | DCHECK(GetType(descriptor_number) == ACCESSOR_CONSTANT); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2943 | Foreign* p = Foreign::cast(GetCallbacksObject(descriptor_number)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2944 | return reinterpret_cast<AccessorDescriptor*>(p->foreign_address()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2945 | } |
| 2946 | |
| 2947 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2948 | void DescriptorArray::Get(int descriptor_number, Descriptor* desc) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2949 | desc->Init(handle(GetKey(descriptor_number), GetIsolate()), |
| 2950 | handle(GetValue(descriptor_number), GetIsolate()), |
| 2951 | GetDetails(descriptor_number)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2952 | } |
| 2953 | |
| 2954 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2955 | void DescriptorArray::SetDescriptor(int descriptor_number, Descriptor* desc) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2956 | // Range check. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2957 | DCHECK(descriptor_number < number_of_descriptors()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2958 | set(ToKeyIndex(descriptor_number), *desc->GetKey()); |
| 2959 | set(ToValueIndex(descriptor_number), *desc->GetValue()); |
| 2960 | set(ToDetailsIndex(descriptor_number), desc->GetDetails().AsSmi()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2961 | } |
| 2962 | |
| 2963 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2964 | void DescriptorArray::Set(int descriptor_number, Descriptor* desc) { |
| 2965 | // Range check. |
| 2966 | DCHECK(descriptor_number < number_of_descriptors()); |
| 2967 | |
| 2968 | set(ToKeyIndex(descriptor_number), *desc->GetKey()); |
| 2969 | set(ToValueIndex(descriptor_number), *desc->GetValue()); |
| 2970 | set(ToDetailsIndex(descriptor_number), desc->GetDetails().AsSmi()); |
| 2971 | } |
| 2972 | |
| 2973 | |
| 2974 | void DescriptorArray::Append(Descriptor* desc) { |
| 2975 | DisallowHeapAllocation no_gc; |
| 2976 | int descriptor_number = number_of_descriptors(); |
| 2977 | SetNumberOfDescriptors(descriptor_number + 1); |
| 2978 | Set(descriptor_number, desc); |
| 2979 | |
| 2980 | uint32_t hash = desc->GetKey()->Hash(); |
| 2981 | |
| 2982 | int insertion; |
| 2983 | |
| 2984 | for (insertion = descriptor_number; insertion > 0; --insertion) { |
| 2985 | Name* key = GetSortedKey(insertion - 1); |
| 2986 | if (key->Hash() <= hash) break; |
| 2987 | SetSortedKey(insertion, GetSortedKeyIndex(insertion - 1)); |
| 2988 | } |
| 2989 | |
| 2990 | SetSortedKey(insertion, descriptor_number); |
| 2991 | } |
| 2992 | |
| 2993 | |
| 2994 | void DescriptorArray::SwapSortedKeys(int first, int second) { |
| 2995 | int first_key = GetSortedKeyIndex(first); |
| 2996 | SetSortedKey(first, GetSortedKeyIndex(second)); |
| 2997 | SetSortedKey(second, first_key); |
Ben Murdoch | 85b7179 | 2012-04-11 18:30:58 +0100 | [diff] [blame] | 2998 | } |
| 2999 | |
| 3000 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3001 | PropertyType DescriptorArray::Entry::type() { return descs_->GetType(index_); } |
| 3002 | |
| 3003 | |
| 3004 | Object* DescriptorArray::Entry::GetCallbackObject() { |
| 3005 | return descs_->GetValue(index_); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3006 | } |
| 3007 | |
| 3008 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3009 | int HashTableBase::NumberOfElements() { |
| 3010 | return Smi::cast(get(kNumberOfElementsIndex))->value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3011 | } |
| 3012 | |
| 3013 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3014 | int HashTableBase::NumberOfDeletedElements() { |
| 3015 | return Smi::cast(get(kNumberOfDeletedElementsIndex))->value(); |
| 3016 | } |
| 3017 | |
| 3018 | |
| 3019 | int HashTableBase::Capacity() { |
| 3020 | return Smi::cast(get(kCapacityIndex))->value(); |
| 3021 | } |
| 3022 | |
| 3023 | |
| 3024 | void HashTableBase::ElementAdded() { |
| 3025 | SetNumberOfElements(NumberOfElements() + 1); |
| 3026 | } |
| 3027 | |
| 3028 | |
| 3029 | void HashTableBase::ElementRemoved() { |
| 3030 | SetNumberOfElements(NumberOfElements() - 1); |
| 3031 | SetNumberOfDeletedElements(NumberOfDeletedElements() + 1); |
| 3032 | } |
| 3033 | |
| 3034 | |
| 3035 | void HashTableBase::ElementsRemoved(int n) { |
| 3036 | SetNumberOfElements(NumberOfElements() - n); |
| 3037 | SetNumberOfDeletedElements(NumberOfDeletedElements() + n); |
| 3038 | } |
| 3039 | |
| 3040 | |
| 3041 | // static |
| 3042 | int HashTableBase::ComputeCapacity(int at_least_space_for) { |
| 3043 | const int kMinCapacity = 4; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3044 | int capacity = base::bits::RoundUpToPowerOfTwo32(at_least_space_for * 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3045 | return Max(capacity, kMinCapacity); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3046 | } |
| 3047 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3048 | bool HashTableBase::IsKey(Isolate* isolate, Object* k) { |
| 3049 | Heap* heap = isolate->heap(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3050 | return k != heap->the_hole_value() && k != heap->undefined_value(); |
| 3051 | } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3052 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3053 | bool HashTableBase::IsKey(Object* k) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3054 | Isolate* isolate = this->GetIsolate(); |
| 3055 | return !k->IsTheHole(isolate) && !k->IsUndefined(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3056 | } |
| 3057 | |
| 3058 | |
| 3059 | void HashTableBase::SetNumberOfElements(int nof) { |
| 3060 | set(kNumberOfElementsIndex, Smi::FromInt(nof)); |
| 3061 | } |
| 3062 | |
| 3063 | |
| 3064 | void HashTableBase::SetNumberOfDeletedElements(int nod) { |
| 3065 | set(kNumberOfDeletedElementsIndex, Smi::FromInt(nod)); |
| 3066 | } |
| 3067 | |
| 3068 | |
| 3069 | template <typename Derived, typename Shape, typename Key> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3070 | int HashTable<Derived, Shape, Key>::FindEntry(Key key) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3071 | return FindEntry(GetIsolate(), key); |
| 3072 | } |
| 3073 | |
| 3074 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3075 | template<typename Derived, typename Shape, typename Key> |
| 3076 | int HashTable<Derived, Shape, Key>::FindEntry(Isolate* isolate, Key key) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3077 | return FindEntry(isolate, key, HashTable::Hash(key)); |
| 3078 | } |
| 3079 | |
| 3080 | |
| 3081 | // Find entry for key otherwise return kNotFound. |
| 3082 | template <typename Derived, typename Shape, typename Key> |
| 3083 | int HashTable<Derived, Shape, Key>::FindEntry(Isolate* isolate, Key key, |
| 3084 | int32_t hash) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3085 | uint32_t capacity = Capacity(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3086 | uint32_t entry = FirstProbe(hash, capacity); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3087 | uint32_t count = 1; |
| 3088 | // EnsureCapacity will guarantee the hash table is never full. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3089 | Object* undefined = isolate->heap()->undefined_value(); |
| 3090 | Object* the_hole = isolate->heap()->the_hole_value(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3091 | while (true) { |
| 3092 | Object* element = KeyAt(entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3093 | // Empty entry. Uses raw unchecked accessors because it is called by the |
| 3094 | // string table during bootstrapping. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3095 | if (element == undefined) break; |
| 3096 | if (element != the_hole && Shape::IsMatch(key, element)) return entry; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3097 | entry = NextProbe(entry, count++, capacity); |
| 3098 | } |
| 3099 | return kNotFound; |
| 3100 | } |
| 3101 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3102 | bool StringSetShape::IsMatch(String* key, Object* value) { |
| 3103 | return value->IsString() && key->Equals(String::cast(value)); |
| 3104 | } |
| 3105 | |
| 3106 | uint32_t StringSetShape::Hash(String* key) { return key->Hash(); } |
| 3107 | |
| 3108 | uint32_t StringSetShape::HashForObject(String* key, Object* object) { |
| 3109 | return object->IsString() ? String::cast(object)->Hash() : 0; |
| 3110 | } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3111 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 3112 | bool SeededNumberDictionary::requires_slow_elements() { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3113 | Object* max_index_object = get(kMaxNumberKeyIndex); |
| 3114 | if (!max_index_object->IsSmi()) return false; |
| 3115 | return 0 != |
| 3116 | (Smi::cast(max_index_object)->value() & kRequiresSlowElementsMask); |
| 3117 | } |
| 3118 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3119 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 3120 | uint32_t SeededNumberDictionary::max_number_key() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3121 | DCHECK(!requires_slow_elements()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3122 | Object* max_index_object = get(kMaxNumberKeyIndex); |
| 3123 | if (!max_index_object->IsSmi()) return 0; |
| 3124 | uint32_t value = static_cast<uint32_t>(Smi::cast(max_index_object)->value()); |
| 3125 | return value >> kRequiresSlowElementsTagSize; |
| 3126 | } |
| 3127 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3128 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 3129 | void SeededNumberDictionary::set_requires_slow_elements() { |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3130 | set(kMaxNumberKeyIndex, Smi::FromInt(kRequiresSlowElementsMask)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3131 | } |
| 3132 | |
| 3133 | |
| 3134 | // ------------------------------------ |
| 3135 | // Cast operations |
| 3136 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3137 | CAST_ACCESSOR(AbstractCode) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3138 | CAST_ACCESSOR(ArrayList) |
| 3139 | CAST_ACCESSOR(Bool16x8) |
| 3140 | CAST_ACCESSOR(Bool32x4) |
| 3141 | CAST_ACCESSOR(Bool8x16) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3142 | CAST_ACCESSOR(ByteArray) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3143 | CAST_ACCESSOR(BytecodeArray) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3144 | CAST_ACCESSOR(Cell) |
| 3145 | CAST_ACCESSOR(Code) |
| 3146 | CAST_ACCESSOR(CodeCacheHashTable) |
| 3147 | CAST_ACCESSOR(CompilationCacheTable) |
| 3148 | CAST_ACCESSOR(ConsString) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 3149 | CAST_ACCESSOR(DeoptimizationInputData) |
| 3150 | CAST_ACCESSOR(DeoptimizationOutputData) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3151 | CAST_ACCESSOR(DependentCode) |
| 3152 | CAST_ACCESSOR(DescriptorArray) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3153 | CAST_ACCESSOR(ExternalOneByteString) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3154 | CAST_ACCESSOR(ExternalString) |
| 3155 | CAST_ACCESSOR(ExternalTwoByteString) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3156 | CAST_ACCESSOR(FixedArray) |
| 3157 | CAST_ACCESSOR(FixedArrayBase) |
| 3158 | CAST_ACCESSOR(FixedDoubleArray) |
| 3159 | CAST_ACCESSOR(FixedTypedArrayBase) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3160 | CAST_ACCESSOR(Float32x4) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3161 | CAST_ACCESSOR(Foreign) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3162 | CAST_ACCESSOR(GlobalDictionary) |
| 3163 | CAST_ACCESSOR(HandlerTable) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3164 | CAST_ACCESSOR(HeapObject) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3165 | CAST_ACCESSOR(Int16x8) |
| 3166 | CAST_ACCESSOR(Int32x4) |
| 3167 | CAST_ACCESSOR(Int8x16) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3168 | CAST_ACCESSOR(JSArray) |
| 3169 | CAST_ACCESSOR(JSArrayBuffer) |
| 3170 | CAST_ACCESSOR(JSArrayBufferView) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3171 | CAST_ACCESSOR(JSBoundFunction) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3172 | CAST_ACCESSOR(JSDataView) |
| 3173 | CAST_ACCESSOR(JSDate) |
| 3174 | CAST_ACCESSOR(JSFunction) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3175 | CAST_ACCESSOR(JSGeneratorObject) |
| 3176 | CAST_ACCESSOR(JSGlobalObject) |
| 3177 | CAST_ACCESSOR(JSGlobalProxy) |
| 3178 | CAST_ACCESSOR(JSMap) |
| 3179 | CAST_ACCESSOR(JSMapIterator) |
| 3180 | CAST_ACCESSOR(JSMessageObject) |
| 3181 | CAST_ACCESSOR(JSModule) |
| 3182 | CAST_ACCESSOR(JSObject) |
| 3183 | CAST_ACCESSOR(JSProxy) |
| 3184 | CAST_ACCESSOR(JSReceiver) |
| 3185 | CAST_ACCESSOR(JSRegExp) |
| 3186 | CAST_ACCESSOR(JSSet) |
| 3187 | CAST_ACCESSOR(JSSetIterator) |
| 3188 | CAST_ACCESSOR(JSTypedArray) |
| 3189 | CAST_ACCESSOR(JSValue) |
| 3190 | CAST_ACCESSOR(JSWeakMap) |
| 3191 | CAST_ACCESSOR(JSWeakSet) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3192 | CAST_ACCESSOR(LayoutDescriptor) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3193 | CAST_ACCESSOR(Map) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3194 | CAST_ACCESSOR(Name) |
| 3195 | CAST_ACCESSOR(NameDictionary) |
| 3196 | CAST_ACCESSOR(NormalizedMapCache) |
| 3197 | CAST_ACCESSOR(Object) |
| 3198 | CAST_ACCESSOR(ObjectHashTable) |
| 3199 | CAST_ACCESSOR(Oddball) |
| 3200 | CAST_ACCESSOR(OrderedHashMap) |
| 3201 | CAST_ACCESSOR(OrderedHashSet) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3202 | CAST_ACCESSOR(PropertyCell) |
| 3203 | CAST_ACCESSOR(ScopeInfo) |
| 3204 | CAST_ACCESSOR(SeededNumberDictionary) |
| 3205 | CAST_ACCESSOR(SeqOneByteString) |
| 3206 | CAST_ACCESSOR(SeqString) |
| 3207 | CAST_ACCESSOR(SeqTwoByteString) |
| 3208 | CAST_ACCESSOR(SharedFunctionInfo) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3209 | CAST_ACCESSOR(Simd128Value) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3210 | CAST_ACCESSOR(SlicedString) |
| 3211 | CAST_ACCESSOR(Smi) |
| 3212 | CAST_ACCESSOR(String) |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 3213 | CAST_ACCESSOR(StringSet) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3214 | CAST_ACCESSOR(StringTable) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3215 | CAST_ACCESSOR(Struct) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3216 | CAST_ACCESSOR(Symbol) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3217 | CAST_ACCESSOR(Uint16x8) |
| 3218 | CAST_ACCESSOR(Uint32x4) |
| 3219 | CAST_ACCESSOR(Uint8x16) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3220 | CAST_ACCESSOR(UnseededNumberDictionary) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3221 | CAST_ACCESSOR(WeakCell) |
| 3222 | CAST_ACCESSOR(WeakFixedArray) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3223 | CAST_ACCESSOR(WeakHashTable) |
| 3224 | |
| 3225 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3226 | // static |
| 3227 | template <class Traits> |
| 3228 | STATIC_CONST_MEMBER_DEFINITION const InstanceType |
| 3229 | FixedTypedArray<Traits>::kInstanceType; |
| 3230 | |
| 3231 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3232 | template <class Traits> |
| 3233 | FixedTypedArray<Traits>* FixedTypedArray<Traits>::cast(Object* object) { |
| 3234 | SLOW_DCHECK(object->IsHeapObject() && |
| 3235 | HeapObject::cast(object)->map()->instance_type() == |
| 3236 | Traits::kInstanceType); |
| 3237 | return reinterpret_cast<FixedTypedArray<Traits>*>(object); |
| 3238 | } |
| 3239 | |
| 3240 | |
| 3241 | template <class Traits> |
| 3242 | const FixedTypedArray<Traits>* |
| 3243 | FixedTypedArray<Traits>::cast(const Object* object) { |
| 3244 | SLOW_DCHECK(object->IsHeapObject() && |
| 3245 | HeapObject::cast(object)->map()->instance_type() == |
| 3246 | Traits::kInstanceType); |
| 3247 | return reinterpret_cast<FixedTypedArray<Traits>*>(object); |
| 3248 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3249 | |
| 3250 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3251 | #define DEFINE_DEOPT_ELEMENT_ACCESSORS(name, type) \ |
| 3252 | type* DeoptimizationInputData::name() { \ |
| 3253 | return type::cast(get(k##name##Index)); \ |
| 3254 | } \ |
| 3255 | void DeoptimizationInputData::Set##name(type* value) { \ |
| 3256 | set(k##name##Index, value); \ |
| 3257 | } |
| 3258 | |
| 3259 | DEFINE_DEOPT_ELEMENT_ACCESSORS(TranslationByteArray, ByteArray) |
| 3260 | DEFINE_DEOPT_ELEMENT_ACCESSORS(InlinedFunctionCount, Smi) |
| 3261 | DEFINE_DEOPT_ELEMENT_ACCESSORS(LiteralArray, FixedArray) |
| 3262 | DEFINE_DEOPT_ELEMENT_ACCESSORS(OsrAstId, Smi) |
| 3263 | DEFINE_DEOPT_ELEMENT_ACCESSORS(OsrPcOffset, Smi) |
| 3264 | DEFINE_DEOPT_ELEMENT_ACCESSORS(OptimizationId, Smi) |
| 3265 | DEFINE_DEOPT_ELEMENT_ACCESSORS(SharedFunctionInfo, Object) |
| 3266 | DEFINE_DEOPT_ELEMENT_ACCESSORS(WeakCellCache, Object) |
| 3267 | |
| 3268 | #undef DEFINE_DEOPT_ELEMENT_ACCESSORS |
| 3269 | |
| 3270 | |
| 3271 | #define DEFINE_DEOPT_ENTRY_ACCESSORS(name, type) \ |
| 3272 | type* DeoptimizationInputData::name(int i) { \ |
| 3273 | return type::cast(get(IndexForEntry(i) + k##name##Offset)); \ |
| 3274 | } \ |
| 3275 | void DeoptimizationInputData::Set##name(int i, type* value) { \ |
| 3276 | set(IndexForEntry(i) + k##name##Offset, value); \ |
| 3277 | } |
| 3278 | |
| 3279 | DEFINE_DEOPT_ENTRY_ACCESSORS(AstIdRaw, Smi) |
| 3280 | DEFINE_DEOPT_ENTRY_ACCESSORS(TranslationIndex, Smi) |
| 3281 | DEFINE_DEOPT_ENTRY_ACCESSORS(ArgumentsStackHeight, Smi) |
| 3282 | DEFINE_DEOPT_ENTRY_ACCESSORS(Pc, Smi) |
| 3283 | |
| 3284 | #undef DEFINE_DEOPT_ENTRY_ACCESSORS |
| 3285 | |
| 3286 | |
| 3287 | BailoutId DeoptimizationInputData::AstId(int i) { |
| 3288 | return BailoutId(AstIdRaw(i)->value()); |
| 3289 | } |
| 3290 | |
| 3291 | |
| 3292 | void DeoptimizationInputData::SetAstId(int i, BailoutId value) { |
| 3293 | SetAstIdRaw(i, Smi::FromInt(value.ToInt())); |
| 3294 | } |
| 3295 | |
| 3296 | |
| 3297 | int DeoptimizationInputData::DeoptCount() { |
| 3298 | return (length() - kFirstDeoptEntryIndex) / kDeoptEntrySize; |
| 3299 | } |
| 3300 | |
| 3301 | |
| 3302 | int DeoptimizationOutputData::DeoptPoints() { return length() / 2; } |
| 3303 | |
| 3304 | |
| 3305 | BailoutId DeoptimizationOutputData::AstId(int index) { |
| 3306 | return BailoutId(Smi::cast(get(index * 2))->value()); |
| 3307 | } |
| 3308 | |
| 3309 | |
| 3310 | void DeoptimizationOutputData::SetAstId(int index, BailoutId id) { |
| 3311 | set(index * 2, Smi::FromInt(id.ToInt())); |
| 3312 | } |
| 3313 | |
| 3314 | |
| 3315 | Smi* DeoptimizationOutputData::PcAndState(int index) { |
| 3316 | return Smi::cast(get(1 + index * 2)); |
| 3317 | } |
| 3318 | |
| 3319 | |
| 3320 | void DeoptimizationOutputData::SetPcAndState(int index, Smi* offset) { |
| 3321 | set(1 + index * 2, offset); |
| 3322 | } |
| 3323 | |
| 3324 | |
| 3325 | Object* LiteralsArray::get(int index) const { return FixedArray::get(index); } |
| 3326 | |
| 3327 | |
| 3328 | void LiteralsArray::set(int index, Object* value) { |
| 3329 | FixedArray::set(index, value); |
| 3330 | } |
| 3331 | |
| 3332 | |
| 3333 | void LiteralsArray::set(int index, Smi* value) { |
| 3334 | FixedArray::set(index, value); |
| 3335 | } |
| 3336 | |
| 3337 | |
| 3338 | void LiteralsArray::set(int index, Object* value, WriteBarrierMode mode) { |
| 3339 | FixedArray::set(index, value, mode); |
| 3340 | } |
| 3341 | |
| 3342 | |
| 3343 | LiteralsArray* LiteralsArray::cast(Object* object) { |
| 3344 | SLOW_DCHECK(object->IsLiteralsArray()); |
| 3345 | return reinterpret_cast<LiteralsArray*>(object); |
| 3346 | } |
| 3347 | |
| 3348 | |
| 3349 | TypeFeedbackVector* LiteralsArray::feedback_vector() const { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3350 | if (length() == 0) { |
| 3351 | return TypeFeedbackVector::cast( |
| 3352 | const_cast<FixedArray*>(FixedArray::cast(this))); |
| 3353 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3354 | return TypeFeedbackVector::cast(get(kVectorIndex)); |
| 3355 | } |
| 3356 | |
| 3357 | |
| 3358 | void LiteralsArray::set_feedback_vector(TypeFeedbackVector* vector) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3359 | if (length() <= kVectorIndex) { |
| 3360 | DCHECK(vector->length() == 0); |
| 3361 | return; |
| 3362 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3363 | set(kVectorIndex, vector); |
| 3364 | } |
| 3365 | |
| 3366 | |
| 3367 | Object* LiteralsArray::literal(int literal_index) const { |
| 3368 | return get(kFirstLiteralIndex + literal_index); |
| 3369 | } |
| 3370 | |
| 3371 | |
| 3372 | void LiteralsArray::set_literal(int literal_index, Object* literal) { |
| 3373 | set(kFirstLiteralIndex + literal_index, literal); |
| 3374 | } |
| 3375 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3376 | void LiteralsArray::set_literal_undefined(int literal_index) { |
| 3377 | set_undefined(kFirstLiteralIndex + literal_index); |
| 3378 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3379 | |
| 3380 | int LiteralsArray::literals_count() const { |
| 3381 | return length() - kFirstLiteralIndex; |
| 3382 | } |
| 3383 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3384 | int HandlerTable::GetRangeStart(int index) const { |
| 3385 | return Smi::cast(get(index * kRangeEntrySize + kRangeStartIndex))->value(); |
| 3386 | } |
| 3387 | |
| 3388 | int HandlerTable::GetRangeEnd(int index) const { |
| 3389 | return Smi::cast(get(index * kRangeEntrySize + kRangeEndIndex))->value(); |
| 3390 | } |
| 3391 | |
| 3392 | int HandlerTable::GetRangeHandler(int index) const { |
| 3393 | return HandlerOffsetField::decode( |
| 3394 | Smi::cast(get(index * kRangeEntrySize + kRangeHandlerIndex))->value()); |
| 3395 | } |
| 3396 | |
| 3397 | int HandlerTable::GetRangeData(int index) const { |
| 3398 | return Smi::cast(get(index * kRangeEntrySize + kRangeDataIndex))->value(); |
| 3399 | } |
| 3400 | |
| 3401 | HandlerTable::CatchPrediction HandlerTable::GetRangePrediction( |
| 3402 | int index) const { |
| 3403 | return HandlerPredictionField::decode( |
| 3404 | Smi::cast(get(index * kRangeEntrySize + kRangeHandlerIndex))->value()); |
| 3405 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3406 | |
| 3407 | void HandlerTable::SetRangeStart(int index, int value) { |
| 3408 | set(index * kRangeEntrySize + kRangeStartIndex, Smi::FromInt(value)); |
| 3409 | } |
| 3410 | |
| 3411 | |
| 3412 | void HandlerTable::SetRangeEnd(int index, int value) { |
| 3413 | set(index * kRangeEntrySize + kRangeEndIndex, Smi::FromInt(value)); |
| 3414 | } |
| 3415 | |
| 3416 | |
| 3417 | void HandlerTable::SetRangeHandler(int index, int offset, |
| 3418 | CatchPrediction prediction) { |
| 3419 | int value = HandlerOffsetField::encode(offset) | |
| 3420 | HandlerPredictionField::encode(prediction); |
| 3421 | set(index * kRangeEntrySize + kRangeHandlerIndex, Smi::FromInt(value)); |
| 3422 | } |
| 3423 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3424 | void HandlerTable::SetRangeData(int index, int value) { |
| 3425 | set(index * kRangeEntrySize + kRangeDataIndex, Smi::FromInt(value)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3426 | } |
| 3427 | |
| 3428 | |
| 3429 | void HandlerTable::SetReturnOffset(int index, int value) { |
| 3430 | set(index * kReturnEntrySize + kReturnOffsetIndex, Smi::FromInt(value)); |
| 3431 | } |
| 3432 | |
| 3433 | |
| 3434 | void HandlerTable::SetReturnHandler(int index, int offset, |
| 3435 | CatchPrediction prediction) { |
| 3436 | int value = HandlerOffsetField::encode(offset) | |
| 3437 | HandlerPredictionField::encode(prediction); |
| 3438 | set(index * kReturnEntrySize + kReturnHandlerIndex, Smi::FromInt(value)); |
| 3439 | } |
| 3440 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3441 | int HandlerTable::NumberOfRangeEntries() const { |
| 3442 | return length() / kRangeEntrySize; |
| 3443 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3444 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3445 | #define MAKE_STRUCT_CAST(NAME, Name, name) CAST_ACCESSOR(Name) |
| 3446 | STRUCT_LIST(MAKE_STRUCT_CAST) |
| 3447 | #undef MAKE_STRUCT_CAST |
| 3448 | |
| 3449 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3450 | template <typename Derived, typename Shape, typename Key> |
| 3451 | HashTable<Derived, Shape, Key>* |
| 3452 | HashTable<Derived, Shape, Key>::cast(Object* obj) { |
| 3453 | SLOW_DCHECK(obj->IsHashTable()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3454 | return reinterpret_cast<HashTable*>(obj); |
| 3455 | } |
| 3456 | |
| 3457 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3458 | template <typename Derived, typename Shape, typename Key> |
| 3459 | const HashTable<Derived, Shape, Key>* |
| 3460 | HashTable<Derived, Shape, Key>::cast(const Object* obj) { |
| 3461 | SLOW_DCHECK(obj->IsHashTable()); |
| 3462 | return reinterpret_cast<const HashTable*>(obj); |
| 3463 | } |
| 3464 | |
| 3465 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3466 | SMI_ACCESSORS(FixedArrayBase, length, kLengthOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3467 | SYNCHRONIZED_SMI_ACCESSORS(FixedArrayBase, length, kLengthOffset) |
| 3468 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3469 | SMI_ACCESSORS(FreeSpace, size, kSizeOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3470 | NOBARRIER_SMI_ACCESSORS(FreeSpace, size, kSizeOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3471 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3472 | SMI_ACCESSORS(String, length, kLengthOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3473 | SYNCHRONIZED_SMI_ACCESSORS(String, length, kLengthOffset) |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3474 | |
| 3475 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3476 | int FreeSpace::Size() { return size(); } |
| 3477 | |
| 3478 | |
| 3479 | FreeSpace* FreeSpace::next() { |
| 3480 | DCHECK(map() == GetHeap()->root(Heap::kFreeSpaceMapRootIndex) || |
| 3481 | (!GetHeap()->deserialization_complete() && map() == NULL)); |
| 3482 | DCHECK_LE(kNextOffset + kPointerSize, nobarrier_size()); |
| 3483 | return reinterpret_cast<FreeSpace*>( |
| 3484 | Memory::Address_at(address() + kNextOffset)); |
| 3485 | } |
| 3486 | |
| 3487 | |
| 3488 | void FreeSpace::set_next(FreeSpace* next) { |
| 3489 | DCHECK(map() == GetHeap()->root(Heap::kFreeSpaceMapRootIndex) || |
| 3490 | (!GetHeap()->deserialization_complete() && map() == NULL)); |
| 3491 | DCHECK_LE(kNextOffset + kPointerSize, nobarrier_size()); |
| 3492 | base::NoBarrier_Store( |
| 3493 | reinterpret_cast<base::AtomicWord*>(address() + kNextOffset), |
| 3494 | reinterpret_cast<base::AtomicWord>(next)); |
| 3495 | } |
| 3496 | |
| 3497 | |
| 3498 | FreeSpace* FreeSpace::cast(HeapObject* o) { |
| 3499 | SLOW_DCHECK(!o->GetHeap()->deserialization_complete() || o->IsFreeSpace()); |
| 3500 | return reinterpret_cast<FreeSpace*>(o); |
| 3501 | } |
| 3502 | |
| 3503 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3504 | uint32_t Name::hash_field() { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3505 | return READ_UINT32_FIELD(this, kHashFieldOffset); |
| 3506 | } |
| 3507 | |
| 3508 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3509 | void Name::set_hash_field(uint32_t value) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3510 | WRITE_UINT32_FIELD(this, kHashFieldOffset, value); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 3511 | #if V8_HOST_ARCH_64_BIT |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3512 | #if V8_TARGET_LITTLE_ENDIAN |
| 3513 | WRITE_UINT32_FIELD(this, kHashFieldSlot + kIntSize, 0); |
| 3514 | #else |
| 3515 | WRITE_UINT32_FIELD(this, kHashFieldSlot, 0); |
| 3516 | #endif |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 3517 | #endif |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3518 | } |
| 3519 | |
| 3520 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3521 | bool Name::Equals(Name* other) { |
| 3522 | if (other == this) return true; |
| 3523 | if ((this->IsInternalizedString() && other->IsInternalizedString()) || |
| 3524 | this->IsSymbol() || other->IsSymbol()) { |
| 3525 | return false; |
| 3526 | } |
| 3527 | return String::cast(this)->SlowEquals(String::cast(other)); |
| 3528 | } |
| 3529 | |
| 3530 | |
| 3531 | bool Name::Equals(Handle<Name> one, Handle<Name> two) { |
| 3532 | if (one.is_identical_to(two)) return true; |
| 3533 | if ((one->IsInternalizedString() && two->IsInternalizedString()) || |
| 3534 | one->IsSymbol() || two->IsSymbol()) { |
| 3535 | return false; |
| 3536 | } |
| 3537 | return String::SlowEquals(Handle<String>::cast(one), |
| 3538 | Handle<String>::cast(two)); |
| 3539 | } |
| 3540 | |
| 3541 | |
| 3542 | ACCESSORS(Symbol, name, Object, kNameOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3543 | SMI_ACCESSORS(Symbol, flags, kFlagsOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3544 | BOOL_ACCESSORS(Symbol, flags, is_private, kPrivateBit) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3545 | BOOL_ACCESSORS(Symbol, flags, is_well_known_symbol, kWellKnownSymbolBit) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3546 | |
| 3547 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3548 | bool String::Equals(String* other) { |
| 3549 | if (other == this) return true; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3550 | if (this->IsInternalizedString() && other->IsInternalizedString()) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3551 | return false; |
| 3552 | } |
| 3553 | return SlowEquals(other); |
| 3554 | } |
| 3555 | |
| 3556 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3557 | bool String::Equals(Handle<String> one, Handle<String> two) { |
| 3558 | if (one.is_identical_to(two)) return true; |
| 3559 | if (one->IsInternalizedString() && two->IsInternalizedString()) { |
| 3560 | return false; |
| 3561 | } |
| 3562 | return SlowEquals(one, two); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3563 | } |
| 3564 | |
| 3565 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3566 | Handle<String> String::Flatten(Handle<String> string, PretenureFlag pretenure) { |
| 3567 | if (!string->IsConsString()) return string; |
| 3568 | Handle<ConsString> cons = Handle<ConsString>::cast(string); |
| 3569 | if (cons->IsFlat()) return handle(cons->first()); |
| 3570 | return SlowFlatten(cons, pretenure); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3571 | } |
| 3572 | |
| 3573 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3574 | uint16_t String::Get(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3575 | DCHECK(index >= 0 && index < length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3576 | switch (StringShape(this).full_representation_tag()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3577 | case kSeqStringTag | kOneByteStringTag: |
| 3578 | return SeqOneByteString::cast(this)->SeqOneByteStringGet(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3579 | case kSeqStringTag | kTwoByteStringTag: |
| 3580 | return SeqTwoByteString::cast(this)->SeqTwoByteStringGet(index); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3581 | case kConsStringTag | kOneByteStringTag: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3582 | case kConsStringTag | kTwoByteStringTag: |
| 3583 | return ConsString::cast(this)->ConsStringGet(index); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3584 | case kExternalStringTag | kOneByteStringTag: |
| 3585 | return ExternalOneByteString::cast(this)->ExternalOneByteStringGet(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3586 | case kExternalStringTag | kTwoByteStringTag: |
| 3587 | return ExternalTwoByteString::cast(this)->ExternalTwoByteStringGet(index); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3588 | case kSlicedStringTag | kOneByteStringTag: |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3589 | case kSlicedStringTag | kTwoByteStringTag: |
| 3590 | return SlicedString::cast(this)->SlicedStringGet(index); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3591 | default: |
| 3592 | break; |
| 3593 | } |
| 3594 | |
| 3595 | UNREACHABLE(); |
| 3596 | return 0; |
| 3597 | } |
| 3598 | |
| 3599 | |
| 3600 | void String::Set(int index, uint16_t value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3601 | DCHECK(index >= 0 && index < length()); |
| 3602 | DCHECK(StringShape(this).IsSequential()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3603 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3604 | return this->IsOneByteRepresentation() |
| 3605 | ? SeqOneByteString::cast(this)->SeqOneByteStringSet(index, value) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3606 | : SeqTwoByteString::cast(this)->SeqTwoByteStringSet(index, value); |
| 3607 | } |
| 3608 | |
| 3609 | |
| 3610 | bool String::IsFlat() { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3611 | if (!StringShape(this).IsCons()) return true; |
| 3612 | return ConsString::cast(this)->second()->length() == 0; |
| 3613 | } |
| 3614 | |
| 3615 | |
| 3616 | String* String::GetUnderlying() { |
| 3617 | // Giving direct access to underlying string only makes sense if the |
| 3618 | // wrapping string is already flattened. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3619 | DCHECK(this->IsFlat()); |
| 3620 | DCHECK(StringShape(this).IsIndirect()); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3621 | STATIC_ASSERT(ConsString::kFirstOffset == SlicedString::kParentOffset); |
| 3622 | const int kUnderlyingOffset = SlicedString::kParentOffset; |
| 3623 | return String::cast(READ_FIELD(this, kUnderlyingOffset)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3624 | } |
| 3625 | |
| 3626 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3627 | template<class Visitor> |
| 3628 | ConsString* String::VisitFlat(Visitor* visitor, |
| 3629 | String* string, |
| 3630 | const int offset) { |
| 3631 | int slice_offset = offset; |
| 3632 | const int length = string->length(); |
| 3633 | DCHECK(offset <= length); |
| 3634 | while (true) { |
| 3635 | int32_t type = string->map()->instance_type(); |
| 3636 | switch (type & (kStringRepresentationMask | kStringEncodingMask)) { |
| 3637 | case kSeqStringTag | kOneByteStringTag: |
| 3638 | visitor->VisitOneByteString( |
| 3639 | SeqOneByteString::cast(string)->GetChars() + slice_offset, |
| 3640 | length - offset); |
| 3641 | return NULL; |
| 3642 | |
| 3643 | case kSeqStringTag | kTwoByteStringTag: |
| 3644 | visitor->VisitTwoByteString( |
| 3645 | SeqTwoByteString::cast(string)->GetChars() + slice_offset, |
| 3646 | length - offset); |
| 3647 | return NULL; |
| 3648 | |
| 3649 | case kExternalStringTag | kOneByteStringTag: |
| 3650 | visitor->VisitOneByteString( |
| 3651 | ExternalOneByteString::cast(string)->GetChars() + slice_offset, |
| 3652 | length - offset); |
| 3653 | return NULL; |
| 3654 | |
| 3655 | case kExternalStringTag | kTwoByteStringTag: |
| 3656 | visitor->VisitTwoByteString( |
| 3657 | ExternalTwoByteString::cast(string)->GetChars() + slice_offset, |
| 3658 | length - offset); |
| 3659 | return NULL; |
| 3660 | |
| 3661 | case kSlicedStringTag | kOneByteStringTag: |
| 3662 | case kSlicedStringTag | kTwoByteStringTag: { |
| 3663 | SlicedString* slicedString = SlicedString::cast(string); |
| 3664 | slice_offset += slicedString->offset(); |
| 3665 | string = slicedString->parent(); |
| 3666 | continue; |
| 3667 | } |
| 3668 | |
| 3669 | case kConsStringTag | kOneByteStringTag: |
| 3670 | case kConsStringTag | kTwoByteStringTag: |
| 3671 | return ConsString::cast(string); |
| 3672 | |
| 3673 | default: |
| 3674 | UNREACHABLE(); |
| 3675 | return NULL; |
| 3676 | } |
| 3677 | } |
| 3678 | } |
| 3679 | |
| 3680 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3681 | template <> |
| 3682 | inline Vector<const uint8_t> String::GetCharVector() { |
| 3683 | String::FlatContent flat = GetFlatContent(); |
| 3684 | DCHECK(flat.IsOneByte()); |
| 3685 | return flat.ToOneByteVector(); |
| 3686 | } |
| 3687 | |
| 3688 | |
| 3689 | template <> |
| 3690 | inline Vector<const uc16> String::GetCharVector() { |
| 3691 | String::FlatContent flat = GetFlatContent(); |
| 3692 | DCHECK(flat.IsTwoByte()); |
| 3693 | return flat.ToUC16Vector(); |
| 3694 | } |
| 3695 | |
| 3696 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3697 | uint16_t SeqOneByteString::SeqOneByteStringGet(int index) { |
| 3698 | DCHECK(index >= 0 && index < length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3699 | return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize); |
| 3700 | } |
| 3701 | |
| 3702 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3703 | void SeqOneByteString::SeqOneByteStringSet(int index, uint16_t value) { |
| 3704 | DCHECK(index >= 0 && index < length() && value <= kMaxOneByteCharCode); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3705 | WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, |
| 3706 | static_cast<byte>(value)); |
| 3707 | } |
| 3708 | |
| 3709 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3710 | Address SeqOneByteString::GetCharsAddress() { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3711 | return FIELD_ADDR(this, kHeaderSize); |
| 3712 | } |
| 3713 | |
| 3714 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3715 | uint8_t* SeqOneByteString::GetChars() { |
| 3716 | return reinterpret_cast<uint8_t*>(GetCharsAddress()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3717 | } |
| 3718 | |
| 3719 | |
| 3720 | Address SeqTwoByteString::GetCharsAddress() { |
| 3721 | return FIELD_ADDR(this, kHeaderSize); |
| 3722 | } |
| 3723 | |
| 3724 | |
| 3725 | uc16* SeqTwoByteString::GetChars() { |
| 3726 | return reinterpret_cast<uc16*>(FIELD_ADDR(this, kHeaderSize)); |
| 3727 | } |
| 3728 | |
| 3729 | |
| 3730 | uint16_t SeqTwoByteString::SeqTwoByteStringGet(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3731 | DCHECK(index >= 0 && index < length()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3732 | return READ_UINT16_FIELD(this, kHeaderSize + index * kShortSize); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3733 | } |
| 3734 | |
| 3735 | |
| 3736 | void SeqTwoByteString::SeqTwoByteStringSet(int index, uint16_t value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3737 | DCHECK(index >= 0 && index < length()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3738 | WRITE_UINT16_FIELD(this, kHeaderSize + index * kShortSize, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3739 | } |
| 3740 | |
| 3741 | |
| 3742 | int SeqTwoByteString::SeqTwoByteStringSize(InstanceType instance_type) { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3743 | return SizeFor(length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3744 | } |
| 3745 | |
| 3746 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3747 | int SeqOneByteString::SeqOneByteStringSize(InstanceType instance_type) { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3748 | return SizeFor(length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3749 | } |
| 3750 | |
| 3751 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3752 | String* SlicedString::parent() { |
| 3753 | return String::cast(READ_FIELD(this, kParentOffset)); |
| 3754 | } |
| 3755 | |
| 3756 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3757 | void SlicedString::set_parent(String* parent, WriteBarrierMode mode) { |
| 3758 | DCHECK(parent->IsSeqString() || parent->IsExternalString()); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3759 | WRITE_FIELD(this, kParentOffset, parent); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3760 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kParentOffset, parent, mode); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3761 | } |
| 3762 | |
| 3763 | |
| 3764 | SMI_ACCESSORS(SlicedString, offset, kOffsetOffset) |
| 3765 | |
| 3766 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3767 | String* ConsString::first() { |
| 3768 | return String::cast(READ_FIELD(this, kFirstOffset)); |
| 3769 | } |
| 3770 | |
| 3771 | |
| 3772 | Object* ConsString::unchecked_first() { |
| 3773 | return READ_FIELD(this, kFirstOffset); |
| 3774 | } |
| 3775 | |
| 3776 | |
| 3777 | void ConsString::set_first(String* value, WriteBarrierMode mode) { |
| 3778 | WRITE_FIELD(this, kFirstOffset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3779 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kFirstOffset, value, mode); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3780 | } |
| 3781 | |
| 3782 | |
| 3783 | String* ConsString::second() { |
| 3784 | return String::cast(READ_FIELD(this, kSecondOffset)); |
| 3785 | } |
| 3786 | |
| 3787 | |
| 3788 | Object* ConsString::unchecked_second() { |
| 3789 | return READ_FIELD(this, kSecondOffset); |
| 3790 | } |
| 3791 | |
| 3792 | |
| 3793 | void ConsString::set_second(String* value, WriteBarrierMode mode) { |
| 3794 | WRITE_FIELD(this, kSecondOffset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3795 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kSecondOffset, value, mode); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3796 | } |
| 3797 | |
| 3798 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3799 | bool ExternalString::is_short() { |
| 3800 | InstanceType type = map()->instance_type(); |
| 3801 | return (type & kShortExternalStringMask) == kShortExternalStringTag; |
| 3802 | } |
| 3803 | |
| 3804 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3805 | const ExternalOneByteString::Resource* ExternalOneByteString::resource() { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3806 | return *reinterpret_cast<Resource**>(FIELD_ADDR(this, kResourceOffset)); |
| 3807 | } |
| 3808 | |
| 3809 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3810 | void ExternalOneByteString::update_data_cache() { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3811 | if (is_short()) return; |
| 3812 | const char** data_field = |
| 3813 | reinterpret_cast<const char**>(FIELD_ADDR(this, kResourceDataOffset)); |
| 3814 | *data_field = resource()->data(); |
| 3815 | } |
| 3816 | |
| 3817 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3818 | void ExternalOneByteString::set_resource( |
| 3819 | const ExternalOneByteString::Resource* resource) { |
| 3820 | DCHECK(IsAligned(reinterpret_cast<intptr_t>(resource), kPointerSize)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3821 | *reinterpret_cast<const Resource**>( |
| 3822 | FIELD_ADDR(this, kResourceOffset)) = resource; |
| 3823 | if (resource != NULL) update_data_cache(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3824 | } |
| 3825 | |
| 3826 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3827 | const uint8_t* ExternalOneByteString::GetChars() { |
| 3828 | return reinterpret_cast<const uint8_t*>(resource()->data()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3829 | } |
| 3830 | |
| 3831 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3832 | uint16_t ExternalOneByteString::ExternalOneByteStringGet(int index) { |
| 3833 | DCHECK(index >= 0 && index < length()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3834 | return GetChars()[index]; |
| 3835 | } |
| 3836 | |
| 3837 | |
| 3838 | const ExternalTwoByteString::Resource* ExternalTwoByteString::resource() { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3839 | return *reinterpret_cast<Resource**>(FIELD_ADDR(this, kResourceOffset)); |
| 3840 | } |
| 3841 | |
| 3842 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3843 | void ExternalTwoByteString::update_data_cache() { |
| 3844 | if (is_short()) return; |
| 3845 | const uint16_t** data_field = |
| 3846 | reinterpret_cast<const uint16_t**>(FIELD_ADDR(this, kResourceDataOffset)); |
| 3847 | *data_field = resource()->data(); |
| 3848 | } |
| 3849 | |
| 3850 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3851 | void ExternalTwoByteString::set_resource( |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3852 | const ExternalTwoByteString::Resource* resource) { |
| 3853 | *reinterpret_cast<const Resource**>( |
| 3854 | FIELD_ADDR(this, kResourceOffset)) = resource; |
| 3855 | if (resource != NULL) update_data_cache(); |
| 3856 | } |
| 3857 | |
| 3858 | |
| 3859 | const uint16_t* ExternalTwoByteString::GetChars() { |
| 3860 | return resource()->data(); |
| 3861 | } |
| 3862 | |
| 3863 | |
| 3864 | uint16_t ExternalTwoByteString::ExternalTwoByteStringGet(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3865 | DCHECK(index >= 0 && index < length()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3866 | return GetChars()[index]; |
| 3867 | } |
| 3868 | |
| 3869 | |
| 3870 | const uint16_t* ExternalTwoByteString::ExternalTwoByteStringGetData( |
| 3871 | unsigned start) { |
| 3872 | return GetChars() + start; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3873 | } |
| 3874 | |
| 3875 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3876 | int ConsStringIterator::OffsetForDepth(int depth) { return depth & kDepthMask; } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3877 | |
| 3878 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3879 | void ConsStringIterator::PushLeft(ConsString* string) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3880 | frames_[depth_++ & kDepthMask] = string; |
| 3881 | } |
| 3882 | |
| 3883 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3884 | void ConsStringIterator::PushRight(ConsString* string) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3885 | // Inplace update. |
| 3886 | frames_[(depth_-1) & kDepthMask] = string; |
| 3887 | } |
| 3888 | |
| 3889 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3890 | void ConsStringIterator::AdjustMaximumDepth() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3891 | if (depth_ > maximum_depth_) maximum_depth_ = depth_; |
| 3892 | } |
| 3893 | |
| 3894 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3895 | void ConsStringIterator::Pop() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3896 | DCHECK(depth_ > 0); |
| 3897 | DCHECK(depth_ <= maximum_depth_); |
| 3898 | depth_--; |
| 3899 | } |
| 3900 | |
| 3901 | |
| 3902 | uint16_t StringCharacterStream::GetNext() { |
| 3903 | DCHECK(buffer8_ != NULL && end_ != NULL); |
| 3904 | // Advance cursor if needed. |
| 3905 | if (buffer8_ == end_) HasMore(); |
| 3906 | DCHECK(buffer8_ < end_); |
| 3907 | return is_one_byte_ ? *buffer8_++ : *buffer16_++; |
| 3908 | } |
| 3909 | |
| 3910 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3911 | StringCharacterStream::StringCharacterStream(String* string, int offset) |
| 3912 | : is_one_byte_(false) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3913 | Reset(string, offset); |
| 3914 | } |
| 3915 | |
| 3916 | |
| 3917 | void StringCharacterStream::Reset(String* string, int offset) { |
| 3918 | buffer8_ = NULL; |
| 3919 | end_ = NULL; |
| 3920 | ConsString* cons_string = String::VisitFlat(this, string, offset); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3921 | iter_.Reset(cons_string, offset); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3922 | if (cons_string != NULL) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3923 | string = iter_.Next(&offset); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3924 | if (string != NULL) String::VisitFlat(this, string, offset); |
| 3925 | } |
| 3926 | } |
| 3927 | |
| 3928 | |
| 3929 | bool StringCharacterStream::HasMore() { |
| 3930 | if (buffer8_ != end_) return true; |
| 3931 | int offset; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3932 | String* string = iter_.Next(&offset); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3933 | DCHECK_EQ(offset, 0); |
| 3934 | if (string == NULL) return false; |
| 3935 | String::VisitFlat(this, string); |
| 3936 | DCHECK(buffer8_ != end_); |
| 3937 | return true; |
| 3938 | } |
| 3939 | |
| 3940 | |
| 3941 | void StringCharacterStream::VisitOneByteString( |
| 3942 | const uint8_t* chars, int length) { |
| 3943 | is_one_byte_ = true; |
| 3944 | buffer8_ = chars; |
| 3945 | end_ = chars + length; |
| 3946 | } |
| 3947 | |
| 3948 | |
| 3949 | void StringCharacterStream::VisitTwoByteString( |
| 3950 | const uint16_t* chars, int length) { |
| 3951 | is_one_byte_ = false; |
| 3952 | buffer16_ = chars; |
| 3953 | end_ = reinterpret_cast<const uint8_t*>(chars + length); |
| 3954 | } |
| 3955 | |
| 3956 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3957 | int ByteArray::Size() { return RoundUp(length() + kHeaderSize, kPointerSize); } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3958 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3959 | byte ByteArray::get(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3960 | DCHECK(index >= 0 && index < this->length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3961 | return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize); |
| 3962 | } |
| 3963 | |
| 3964 | |
| 3965 | void ByteArray::set(int index, byte value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3966 | DCHECK(index >= 0 && index < this->length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3967 | WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, value); |
| 3968 | } |
| 3969 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3970 | void ByteArray::copy_in(int index, const byte* buffer, int length) { |
| 3971 | DCHECK(index >= 0 && length >= 0 && index + length >= index && |
| 3972 | index + length <= this->length()); |
| 3973 | byte* dst_addr = FIELD_ADDR(this, kHeaderSize + index * kCharSize); |
| 3974 | memcpy(dst_addr, buffer, length); |
| 3975 | } |
| 3976 | |
| 3977 | void ByteArray::copy_out(int index, byte* buffer, int length) { |
| 3978 | DCHECK(index >= 0 && length >= 0 && index + length >= index && |
| 3979 | index + length <= this->length()); |
| 3980 | const byte* src_addr = FIELD_ADDR(this, kHeaderSize + index * kCharSize); |
| 3981 | memcpy(buffer, src_addr, length); |
| 3982 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3983 | |
| 3984 | int ByteArray::get_int(int index) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3985 | DCHECK(index >= 0 && index < this->length() / kIntSize); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3986 | return READ_INT_FIELD(this, kHeaderSize + index * kIntSize); |
| 3987 | } |
| 3988 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3989 | void ByteArray::set_int(int index, int value) { |
| 3990 | DCHECK(index >= 0 && index < this->length() / kIntSize); |
| 3991 | WRITE_INT_FIELD(this, kHeaderSize + index * kIntSize, value); |
| 3992 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3993 | |
| 3994 | ByteArray* ByteArray::FromDataStartAddress(Address address) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3995 | DCHECK_TAG_ALIGNED(address); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 3996 | return reinterpret_cast<ByteArray*>(address - kHeaderSize + kHeapObjectTag); |
| 3997 | } |
| 3998 | |
| 3999 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4000 | int ByteArray::ByteArraySize() { return SizeFor(this->length()); } |
| 4001 | |
| 4002 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4003 | Address ByteArray::GetDataStartAddress() { |
| 4004 | return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize; |
| 4005 | } |
| 4006 | |
| 4007 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4008 | byte BytecodeArray::get(int index) { |
| 4009 | DCHECK(index >= 0 && index < this->length()); |
| 4010 | return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4011 | } |
| 4012 | |
| 4013 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4014 | void BytecodeArray::set(int index, byte value) { |
| 4015 | DCHECK(index >= 0 && index < this->length()); |
| 4016 | WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4017 | } |
| 4018 | |
| 4019 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4020 | void BytecodeArray::set_frame_size(int frame_size) { |
| 4021 | DCHECK_GE(frame_size, 0); |
| 4022 | DCHECK(IsAligned(frame_size, static_cast<unsigned>(kPointerSize))); |
| 4023 | WRITE_INT_FIELD(this, kFrameSizeOffset, frame_size); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 4024 | } |
| 4025 | |
| 4026 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4027 | int BytecodeArray::frame_size() const { |
| 4028 | return READ_INT_FIELD(this, kFrameSizeOffset); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4029 | } |
| 4030 | |
| 4031 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4032 | int BytecodeArray::register_count() const { |
| 4033 | return frame_size() / kPointerSize; |
| 4034 | } |
| 4035 | |
| 4036 | |
| 4037 | void BytecodeArray::set_parameter_count(int number_of_parameters) { |
| 4038 | DCHECK_GE(number_of_parameters, 0); |
| 4039 | // Parameter count is stored as the size on stack of the parameters to allow |
| 4040 | // it to be used directly by generated code. |
| 4041 | WRITE_INT_FIELD(this, kParameterSizeOffset, |
| 4042 | (number_of_parameters << kPointerSizeLog2)); |
| 4043 | } |
| 4044 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4045 | int BytecodeArray::interrupt_budget() const { |
| 4046 | return READ_INT_FIELD(this, kInterruptBudgetOffset); |
| 4047 | } |
| 4048 | |
| 4049 | void BytecodeArray::set_interrupt_budget(int interrupt_budget) { |
| 4050 | DCHECK_GE(interrupt_budget, 0); |
| 4051 | WRITE_INT_FIELD(this, kInterruptBudgetOffset, interrupt_budget); |
| 4052 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4053 | |
| 4054 | int BytecodeArray::parameter_count() const { |
| 4055 | // Parameter count is stored as the size on stack of the parameters to allow |
| 4056 | // it to be used directly by generated code. |
| 4057 | return READ_INT_FIELD(this, kParameterSizeOffset) >> kPointerSizeLog2; |
| 4058 | } |
| 4059 | |
| 4060 | |
| 4061 | ACCESSORS(BytecodeArray, constant_pool, FixedArray, kConstantPoolOffset) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4062 | ACCESSORS(BytecodeArray, handler_table, FixedArray, kHandlerTableOffset) |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4063 | ACCESSORS(BytecodeArray, source_position_table, ByteArray, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4064 | kSourcePositionTableOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4065 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4066 | Address BytecodeArray::GetFirstBytecodeAddress() { |
| 4067 | return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize; |
| 4068 | } |
| 4069 | |
| 4070 | |
| 4071 | int BytecodeArray::BytecodeArraySize() { return SizeFor(this->length()); } |
| 4072 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4073 | int BytecodeArray::SizeIncludingMetadata() { |
| 4074 | int size = BytecodeArraySize(); |
| 4075 | size += constant_pool()->Size(); |
| 4076 | size += handler_table()->Size(); |
| 4077 | size += source_position_table()->Size(); |
| 4078 | return size; |
| 4079 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4080 | |
| 4081 | ACCESSORS(FixedTypedArrayBase, base_pointer, Object, kBasePointerOffset) |
| 4082 | |
| 4083 | |
| 4084 | void* FixedTypedArrayBase::external_pointer() const { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 4085 | intptr_t ptr = READ_INTPTR_FIELD(this, kExternalPointerOffset); |
| 4086 | return reinterpret_cast<void*>(ptr); |
| 4087 | } |
| 4088 | |
| 4089 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4090 | void FixedTypedArrayBase::set_external_pointer(void* value, |
| 4091 | WriteBarrierMode mode) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 4092 | intptr_t ptr = reinterpret_cast<intptr_t>(value); |
| 4093 | WRITE_INTPTR_FIELD(this, kExternalPointerOffset, ptr); |
| 4094 | } |
| 4095 | |
| 4096 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4097 | void* FixedTypedArrayBase::DataPtr() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4098 | return reinterpret_cast<void*>( |
| 4099 | reinterpret_cast<intptr_t>(base_pointer()) + |
| 4100 | reinterpret_cast<intptr_t>(external_pointer())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4101 | } |
| 4102 | |
| 4103 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4104 | int FixedTypedArrayBase::ElementSize(InstanceType type) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4105 | int element_size; |
| 4106 | switch (type) { |
| 4107 | #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) \ |
| 4108 | case FIXED_##TYPE##_ARRAY_TYPE: \ |
| 4109 | element_size = size; \ |
| 4110 | break; |
| 4111 | |
| 4112 | TYPED_ARRAYS(TYPED_ARRAY_CASE) |
| 4113 | #undef TYPED_ARRAY_CASE |
| 4114 | default: |
| 4115 | UNREACHABLE(); |
| 4116 | return 0; |
| 4117 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4118 | return element_size; |
| 4119 | } |
| 4120 | |
| 4121 | |
| 4122 | int FixedTypedArrayBase::DataSize(InstanceType type) { |
| 4123 | if (base_pointer() == Smi::FromInt(0)) return 0; |
| 4124 | return length() * ElementSize(type); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4125 | } |
| 4126 | |
| 4127 | |
| 4128 | int FixedTypedArrayBase::DataSize() { |
| 4129 | return DataSize(map()->instance_type()); |
| 4130 | } |
| 4131 | |
| 4132 | |
| 4133 | int FixedTypedArrayBase::size() { |
| 4134 | return OBJECT_POINTER_ALIGN(kDataOffset + DataSize()); |
| 4135 | } |
| 4136 | |
| 4137 | |
| 4138 | int FixedTypedArrayBase::TypedArraySize(InstanceType type) { |
| 4139 | return OBJECT_POINTER_ALIGN(kDataOffset + DataSize(type)); |
| 4140 | } |
| 4141 | |
| 4142 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4143 | int FixedTypedArrayBase::TypedArraySize(InstanceType type, int length) { |
| 4144 | return OBJECT_POINTER_ALIGN(kDataOffset + length * ElementSize(type)); |
| 4145 | } |
| 4146 | |
| 4147 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4148 | uint8_t Uint8ArrayTraits::defaultValue() { return 0; } |
| 4149 | |
| 4150 | |
| 4151 | uint8_t Uint8ClampedArrayTraits::defaultValue() { return 0; } |
| 4152 | |
| 4153 | |
| 4154 | int8_t Int8ArrayTraits::defaultValue() { return 0; } |
| 4155 | |
| 4156 | |
| 4157 | uint16_t Uint16ArrayTraits::defaultValue() { return 0; } |
| 4158 | |
| 4159 | |
| 4160 | int16_t Int16ArrayTraits::defaultValue() { return 0; } |
| 4161 | |
| 4162 | |
| 4163 | uint32_t Uint32ArrayTraits::defaultValue() { return 0; } |
| 4164 | |
| 4165 | |
| 4166 | int32_t Int32ArrayTraits::defaultValue() { return 0; } |
| 4167 | |
| 4168 | |
| 4169 | float Float32ArrayTraits::defaultValue() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4170 | return std::numeric_limits<float>::quiet_NaN(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4171 | } |
| 4172 | |
| 4173 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4174 | double Float64ArrayTraits::defaultValue() { |
| 4175 | return std::numeric_limits<double>::quiet_NaN(); |
| 4176 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4177 | |
| 4178 | |
| 4179 | template <class Traits> |
| 4180 | typename Traits::ElementType FixedTypedArray<Traits>::get_scalar(int index) { |
| 4181 | DCHECK((index >= 0) && (index < this->length())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4182 | ElementType* ptr = reinterpret_cast<ElementType*>(DataPtr()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4183 | return ptr[index]; |
| 4184 | } |
| 4185 | |
| 4186 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4187 | template <class Traits> |
| 4188 | void FixedTypedArray<Traits>::set(int index, ElementType value) { |
| 4189 | DCHECK((index >= 0) && (index < this->length())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4190 | ElementType* ptr = reinterpret_cast<ElementType*>(DataPtr()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4191 | ptr[index] = value; |
| 4192 | } |
| 4193 | |
| 4194 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4195 | template <class Traits> |
| 4196 | typename Traits::ElementType FixedTypedArray<Traits>::from_int(int value) { |
| 4197 | return static_cast<ElementType>(value); |
| 4198 | } |
| 4199 | |
| 4200 | |
| 4201 | template <> inline |
| 4202 | uint8_t FixedTypedArray<Uint8ClampedArrayTraits>::from_int(int value) { |
| 4203 | if (value < 0) return 0; |
| 4204 | if (value > 0xFF) return 0xFF; |
| 4205 | return static_cast<uint8_t>(value); |
| 4206 | } |
| 4207 | |
| 4208 | |
| 4209 | template <class Traits> |
| 4210 | typename Traits::ElementType FixedTypedArray<Traits>::from_double( |
| 4211 | double value) { |
| 4212 | return static_cast<ElementType>(DoubleToInt32(value)); |
| 4213 | } |
| 4214 | |
| 4215 | |
| 4216 | template<> inline |
| 4217 | uint8_t FixedTypedArray<Uint8ClampedArrayTraits>::from_double(double value) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4218 | // Handle NaNs and less than zero values which clamp to zero. |
| 4219 | if (!(value > 0)) return 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4220 | if (value > 0xFF) return 0xFF; |
| 4221 | return static_cast<uint8_t>(lrint(value)); |
| 4222 | } |
| 4223 | |
| 4224 | |
| 4225 | template<> inline |
| 4226 | float FixedTypedArray<Float32ArrayTraits>::from_double(double value) { |
| 4227 | return static_cast<float>(value); |
| 4228 | } |
| 4229 | |
| 4230 | |
| 4231 | template<> inline |
| 4232 | double FixedTypedArray<Float64ArrayTraits>::from_double(double value) { |
| 4233 | return value; |
| 4234 | } |
| 4235 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4236 | template <class Traits> |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4237 | Handle<Object> FixedTypedArray<Traits>::get(FixedTypedArray<Traits>* array, |
| 4238 | int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4239 | return Traits::ToHandle(array->GetIsolate(), array->get_scalar(index)); |
| 4240 | } |
| 4241 | |
| 4242 | |
| 4243 | template <class Traits> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4244 | void FixedTypedArray<Traits>::SetValue(uint32_t index, Object* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4245 | ElementType cast_value = Traits::defaultValue(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4246 | if (value->IsSmi()) { |
| 4247 | int int_value = Smi::cast(value)->value(); |
| 4248 | cast_value = from_int(int_value); |
| 4249 | } else if (value->IsHeapNumber()) { |
| 4250 | double double_value = HeapNumber::cast(value)->value(); |
| 4251 | cast_value = from_double(double_value); |
| 4252 | } else { |
| 4253 | // Clamp undefined to the default value. All other types have been |
| 4254 | // converted to a number type further up in the call chain. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4255 | DCHECK(value->IsUndefined(GetIsolate())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4256 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4257 | set(index, cast_value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4258 | } |
| 4259 | |
| 4260 | |
| 4261 | Handle<Object> Uint8ArrayTraits::ToHandle(Isolate* isolate, uint8_t scalar) { |
| 4262 | return handle(Smi::FromInt(scalar), isolate); |
| 4263 | } |
| 4264 | |
| 4265 | |
| 4266 | Handle<Object> Uint8ClampedArrayTraits::ToHandle(Isolate* isolate, |
| 4267 | uint8_t scalar) { |
| 4268 | return handle(Smi::FromInt(scalar), isolate); |
| 4269 | } |
| 4270 | |
| 4271 | |
| 4272 | Handle<Object> Int8ArrayTraits::ToHandle(Isolate* isolate, int8_t scalar) { |
| 4273 | return handle(Smi::FromInt(scalar), isolate); |
| 4274 | } |
| 4275 | |
| 4276 | |
| 4277 | Handle<Object> Uint16ArrayTraits::ToHandle(Isolate* isolate, uint16_t scalar) { |
| 4278 | return handle(Smi::FromInt(scalar), isolate); |
| 4279 | } |
| 4280 | |
| 4281 | |
| 4282 | Handle<Object> Int16ArrayTraits::ToHandle(Isolate* isolate, int16_t scalar) { |
| 4283 | return handle(Smi::FromInt(scalar), isolate); |
| 4284 | } |
| 4285 | |
| 4286 | |
| 4287 | Handle<Object> Uint32ArrayTraits::ToHandle(Isolate* isolate, uint32_t scalar) { |
| 4288 | return isolate->factory()->NewNumberFromUint(scalar); |
| 4289 | } |
| 4290 | |
| 4291 | |
| 4292 | Handle<Object> Int32ArrayTraits::ToHandle(Isolate* isolate, int32_t scalar) { |
| 4293 | return isolate->factory()->NewNumberFromInt(scalar); |
| 4294 | } |
| 4295 | |
| 4296 | |
| 4297 | Handle<Object> Float32ArrayTraits::ToHandle(Isolate* isolate, float scalar) { |
| 4298 | return isolate->factory()->NewNumber(scalar); |
| 4299 | } |
| 4300 | |
| 4301 | |
| 4302 | Handle<Object> Float64ArrayTraits::ToHandle(Isolate* isolate, double scalar) { |
| 4303 | return isolate->factory()->NewNumber(scalar); |
| 4304 | } |
| 4305 | |
| 4306 | |
Iain Merrick | 9ac36c9 | 2010-09-13 15:29:50 +0100 | [diff] [blame] | 4307 | int Map::visitor_id() { |
| 4308 | return READ_BYTE_FIELD(this, kVisitorIdOffset); |
| 4309 | } |
| 4310 | |
| 4311 | |
| 4312 | void Map::set_visitor_id(int id) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4313 | DCHECK(0 <= id && id < 256); |
Iain Merrick | 9ac36c9 | 2010-09-13 15:29:50 +0100 | [diff] [blame] | 4314 | WRITE_BYTE_FIELD(this, kVisitorIdOffset, static_cast<byte>(id)); |
| 4315 | } |
| 4316 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 4317 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4318 | int Map::instance_size() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4319 | return NOBARRIER_READ_BYTE_FIELD( |
| 4320 | this, kInstanceSizeOffset) << kPointerSizeLog2; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4321 | } |
| 4322 | |
| 4323 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4324 | int Map::inobject_properties_or_constructor_function_index() { |
| 4325 | return READ_BYTE_FIELD(this, |
| 4326 | kInObjectPropertiesOrConstructorFunctionIndexOffset); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4327 | } |
| 4328 | |
| 4329 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4330 | void Map::set_inobject_properties_or_constructor_function_index(int value) { |
| 4331 | DCHECK(0 <= value && value < 256); |
| 4332 | WRITE_BYTE_FIELD(this, kInObjectPropertiesOrConstructorFunctionIndexOffset, |
| 4333 | static_cast<byte>(value)); |
| 4334 | } |
| 4335 | |
| 4336 | |
| 4337 | int Map::GetInObjectProperties() { |
| 4338 | DCHECK(IsJSObjectMap()); |
| 4339 | return inobject_properties_or_constructor_function_index(); |
| 4340 | } |
| 4341 | |
| 4342 | |
| 4343 | void Map::SetInObjectProperties(int value) { |
| 4344 | DCHECK(IsJSObjectMap()); |
| 4345 | set_inobject_properties_or_constructor_function_index(value); |
| 4346 | } |
| 4347 | |
| 4348 | |
| 4349 | int Map::GetConstructorFunctionIndex() { |
| 4350 | DCHECK(IsPrimitiveMap()); |
| 4351 | return inobject_properties_or_constructor_function_index(); |
| 4352 | } |
| 4353 | |
| 4354 | |
| 4355 | void Map::SetConstructorFunctionIndex(int value) { |
| 4356 | DCHECK(IsPrimitiveMap()); |
| 4357 | set_inobject_properties_or_constructor_function_index(value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4358 | } |
| 4359 | |
| 4360 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4361 | int Map::GetInObjectPropertyOffset(int index) { |
| 4362 | // Adjust for the number of properties stored in the object. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4363 | index -= GetInObjectProperties(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4364 | DCHECK(index <= 0); |
| 4365 | return instance_size() + (index * kPointerSize); |
| 4366 | } |
| 4367 | |
| 4368 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4369 | Handle<Map> Map::AddMissingTransitionsForTesting( |
| 4370 | Handle<Map> split_map, Handle<DescriptorArray> descriptors, |
| 4371 | Handle<LayoutDescriptor> full_layout_descriptor) { |
| 4372 | return AddMissingTransitions(split_map, descriptors, full_layout_descriptor); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4373 | } |
| 4374 | |
| 4375 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4376 | int HeapObject::SizeFromMap(Map* map) { |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 4377 | int instance_size = map->instance_size(); |
| 4378 | if (instance_size != kVariableSizeSentinel) return instance_size; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4379 | // Only inline the most frequent cases. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4380 | InstanceType instance_type = map->instance_type(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4381 | if (instance_type == FIXED_ARRAY_TYPE || |
| 4382 | instance_type == TRANSITION_ARRAY_TYPE) { |
| 4383 | return FixedArray::SizeFor( |
| 4384 | reinterpret_cast<FixedArray*>(this)->synchronized_length()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4385 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4386 | if (instance_type == ONE_BYTE_STRING_TYPE || |
| 4387 | instance_type == ONE_BYTE_INTERNALIZED_STRING_TYPE) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4388 | // Strings may get concurrently truncated, hence we have to access its |
| 4389 | // length synchronized. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4390 | return SeqOneByteString::SizeFor( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4391 | reinterpret_cast<SeqOneByteString*>(this)->synchronized_length()); |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 4392 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4393 | if (instance_type == BYTE_ARRAY_TYPE) { |
| 4394 | return reinterpret_cast<ByteArray*>(this)->ByteArraySize(); |
| 4395 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4396 | if (instance_type == BYTECODE_ARRAY_TYPE) { |
| 4397 | return reinterpret_cast<BytecodeArray*>(this)->BytecodeArraySize(); |
| 4398 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4399 | if (instance_type == FREE_SPACE_TYPE) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4400 | return reinterpret_cast<FreeSpace*>(this)->nobarrier_size(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4401 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4402 | if (instance_type == STRING_TYPE || |
| 4403 | instance_type == INTERNALIZED_STRING_TYPE) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4404 | // Strings may get concurrently truncated, hence we have to access its |
| 4405 | // length synchronized. |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 4406 | return SeqTwoByteString::SizeFor( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4407 | reinterpret_cast<SeqTwoByteString*>(this)->synchronized_length()); |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 4408 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4409 | if (instance_type == FIXED_DOUBLE_ARRAY_TYPE) { |
| 4410 | return FixedDoubleArray::SizeFor( |
| 4411 | reinterpret_cast<FixedDoubleArray*>(this)->length()); |
| 4412 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4413 | if (instance_type >= FIRST_FIXED_TYPED_ARRAY_TYPE && |
| 4414 | instance_type <= LAST_FIXED_TYPED_ARRAY_TYPE) { |
| 4415 | return reinterpret_cast<FixedTypedArrayBase*>( |
| 4416 | this)->TypedArraySize(instance_type); |
| 4417 | } |
| 4418 | DCHECK(instance_type == CODE_TYPE); |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 4419 | return reinterpret_cast<Code*>(this)->CodeSize(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4420 | } |
| 4421 | |
| 4422 | |
| 4423 | void Map::set_instance_size(int value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4424 | DCHECK_EQ(0, value & (kPointerSize - 1)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4425 | value >>= kPointerSizeLog2; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4426 | DCHECK(0 <= value && value < 256); |
| 4427 | NOBARRIER_WRITE_BYTE_FIELD( |
| 4428 | this, kInstanceSizeOffset, static_cast<byte>(value)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4429 | } |
| 4430 | |
| 4431 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4432 | void Map::clear_unused() { WRITE_BYTE_FIELD(this, kUnusedOffset, 0); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4433 | |
| 4434 | |
| 4435 | InstanceType Map::instance_type() { |
| 4436 | return static_cast<InstanceType>(READ_BYTE_FIELD(this, kInstanceTypeOffset)); |
| 4437 | } |
| 4438 | |
| 4439 | |
| 4440 | void Map::set_instance_type(InstanceType value) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4441 | WRITE_BYTE_FIELD(this, kInstanceTypeOffset, value); |
| 4442 | } |
| 4443 | |
| 4444 | |
| 4445 | int Map::unused_property_fields() { |
| 4446 | return READ_BYTE_FIELD(this, kUnusedPropertyFieldsOffset); |
| 4447 | } |
| 4448 | |
| 4449 | |
| 4450 | void Map::set_unused_property_fields(int value) { |
| 4451 | WRITE_BYTE_FIELD(this, kUnusedPropertyFieldsOffset, Min(value, 255)); |
| 4452 | } |
| 4453 | |
| 4454 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4455 | byte Map::bit_field() const { return READ_BYTE_FIELD(this, kBitFieldOffset); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4456 | |
| 4457 | |
| 4458 | void Map::set_bit_field(byte value) { |
| 4459 | WRITE_BYTE_FIELD(this, kBitFieldOffset, value); |
| 4460 | } |
| 4461 | |
| 4462 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4463 | byte Map::bit_field2() const { return READ_BYTE_FIELD(this, kBitField2Offset); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4464 | |
| 4465 | |
| 4466 | void Map::set_bit_field2(byte value) { |
| 4467 | WRITE_BYTE_FIELD(this, kBitField2Offset, value); |
| 4468 | } |
| 4469 | |
| 4470 | |
| 4471 | void Map::set_non_instance_prototype(bool value) { |
| 4472 | if (value) { |
| 4473 | set_bit_field(bit_field() | (1 << kHasNonInstancePrototype)); |
| 4474 | } else { |
| 4475 | set_bit_field(bit_field() & ~(1 << kHasNonInstancePrototype)); |
| 4476 | } |
| 4477 | } |
| 4478 | |
| 4479 | |
| 4480 | bool Map::has_non_instance_prototype() { |
| 4481 | return ((1 << kHasNonInstancePrototype) & bit_field()) != 0; |
| 4482 | } |
| 4483 | |
| 4484 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4485 | void Map::set_is_constructor(bool value) { |
| 4486 | if (value) { |
| 4487 | set_bit_field(bit_field() | (1 << kIsConstructor)); |
| 4488 | } else { |
| 4489 | set_bit_field(bit_field() & ~(1 << kIsConstructor)); |
| 4490 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 4491 | } |
| 4492 | |
| 4493 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4494 | bool Map::is_constructor() const { |
| 4495 | return ((1 << kIsConstructor) & bit_field()) != 0; |
| 4496 | } |
| 4497 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4498 | void Map::set_has_hidden_prototype(bool value) { |
| 4499 | set_bit_field3(HasHiddenPrototype::update(bit_field3(), value)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4500 | } |
| 4501 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4502 | bool Map::has_hidden_prototype() const { |
| 4503 | return HasHiddenPrototype::decode(bit_field3()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4504 | } |
| 4505 | |
| 4506 | |
| 4507 | void Map::set_has_indexed_interceptor() { |
| 4508 | set_bit_field(bit_field() | (1 << kHasIndexedInterceptor)); |
| 4509 | } |
| 4510 | |
| 4511 | |
| 4512 | bool Map::has_indexed_interceptor() { |
| 4513 | return ((1 << kHasIndexedInterceptor) & bit_field()) != 0; |
| 4514 | } |
| 4515 | |
| 4516 | |
| 4517 | void Map::set_is_undetectable() { |
| 4518 | set_bit_field(bit_field() | (1 << kIsUndetectable)); |
| 4519 | } |
| 4520 | |
| 4521 | |
| 4522 | bool Map::is_undetectable() { |
| 4523 | return ((1 << kIsUndetectable) & bit_field()) != 0; |
| 4524 | } |
| 4525 | |
| 4526 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4527 | void Map::set_has_named_interceptor() { |
| 4528 | set_bit_field(bit_field() | (1 << kHasNamedInterceptor)); |
| 4529 | } |
| 4530 | |
| 4531 | |
| 4532 | bool Map::has_named_interceptor() { |
| 4533 | return ((1 << kHasNamedInterceptor) & bit_field()) != 0; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 4534 | } |
| 4535 | |
| 4536 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4537 | void Map::set_is_access_check_needed(bool access_check_needed) { |
| 4538 | if (access_check_needed) { |
| 4539 | set_bit_field(bit_field() | (1 << kIsAccessCheckNeeded)); |
| 4540 | } else { |
| 4541 | set_bit_field(bit_field() & ~(1 << kIsAccessCheckNeeded)); |
| 4542 | } |
| 4543 | } |
| 4544 | |
| 4545 | |
| 4546 | bool Map::is_access_check_needed() { |
| 4547 | return ((1 << kIsAccessCheckNeeded) & bit_field()) != 0; |
| 4548 | } |
| 4549 | |
| 4550 | |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 4551 | void Map::set_is_extensible(bool value) { |
| 4552 | if (value) { |
| 4553 | set_bit_field2(bit_field2() | (1 << kIsExtensible)); |
| 4554 | } else { |
| 4555 | set_bit_field2(bit_field2() & ~(1 << kIsExtensible)); |
| 4556 | } |
| 4557 | } |
| 4558 | |
| 4559 | bool Map::is_extensible() { |
| 4560 | return ((1 << kIsExtensible) & bit_field2()) != 0; |
| 4561 | } |
| 4562 | |
| 4563 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4564 | void Map::set_is_prototype_map(bool value) { |
| 4565 | set_bit_field2(IsPrototypeMapBits::update(bit_field2(), value)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4566 | } |
| 4567 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4568 | bool Map::is_prototype_map() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4569 | return IsPrototypeMapBits::decode(bit_field2()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4570 | } |
| 4571 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4572 | bool Map::should_be_fast_prototype_map() const { |
| 4573 | if (!prototype_info()->IsPrototypeInfo()) return false; |
| 4574 | return PrototypeInfo::cast(prototype_info())->should_be_fast_map(); |
| 4575 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4576 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4577 | void Map::set_elements_kind(ElementsKind elements_kind) { |
| 4578 | DCHECK(static_cast<int>(elements_kind) < kElementsKindCount); |
| 4579 | DCHECK(kElementsKindCount <= (1 << Map::ElementsKindBits::kSize)); |
| 4580 | set_bit_field2(Map::ElementsKindBits::update(bit_field2(), elements_kind)); |
| 4581 | DCHECK(this->elements_kind() == elements_kind); |
| 4582 | } |
| 4583 | |
| 4584 | |
| 4585 | ElementsKind Map::elements_kind() { |
| 4586 | return Map::ElementsKindBits::decode(bit_field2()); |
| 4587 | } |
| 4588 | |
| 4589 | |
| 4590 | bool Map::has_fast_smi_elements() { |
| 4591 | return IsFastSmiElementsKind(elements_kind()); |
| 4592 | } |
| 4593 | |
| 4594 | bool Map::has_fast_object_elements() { |
| 4595 | return IsFastObjectElementsKind(elements_kind()); |
| 4596 | } |
| 4597 | |
| 4598 | bool Map::has_fast_smi_or_object_elements() { |
| 4599 | return IsFastSmiOrObjectElementsKind(elements_kind()); |
| 4600 | } |
| 4601 | |
| 4602 | bool Map::has_fast_double_elements() { |
| 4603 | return IsFastDoubleElementsKind(elements_kind()); |
| 4604 | } |
| 4605 | |
| 4606 | bool Map::has_fast_elements() { return IsFastElementsKind(elements_kind()); } |
| 4607 | |
| 4608 | bool Map::has_sloppy_arguments_elements() { |
| 4609 | return IsSloppyArgumentsElements(elements_kind()); |
| 4610 | } |
| 4611 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4612 | bool Map::has_fast_sloppy_arguments_elements() { |
| 4613 | return elements_kind() == FAST_SLOPPY_ARGUMENTS_ELEMENTS; |
| 4614 | } |
| 4615 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4616 | bool Map::has_fast_string_wrapper_elements() { |
| 4617 | return elements_kind() == FAST_STRING_WRAPPER_ELEMENTS; |
| 4618 | } |
| 4619 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4620 | bool Map::has_fixed_typed_array_elements() { |
| 4621 | return IsFixedTypedArrayElementsKind(elements_kind()); |
| 4622 | } |
| 4623 | |
| 4624 | bool Map::has_dictionary_elements() { |
| 4625 | return IsDictionaryElementsKind(elements_kind()); |
| 4626 | } |
| 4627 | |
| 4628 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4629 | void Map::set_dictionary_map(bool value) { |
| 4630 | uint32_t new_bit_field3 = DictionaryMap::update(bit_field3(), value); |
| 4631 | new_bit_field3 = IsUnstable::update(new_bit_field3, value); |
| 4632 | set_bit_field3(new_bit_field3); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4633 | } |
| 4634 | |
| 4635 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4636 | bool Map::is_dictionary_map() { |
| 4637 | return DictionaryMap::decode(bit_field3()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4638 | } |
| 4639 | |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 4640 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4641 | Code::Flags Code::flags() { |
| 4642 | return static_cast<Flags>(READ_INT_FIELD(this, kFlagsOffset)); |
| 4643 | } |
| 4644 | |
| 4645 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4646 | void Map::set_owns_descriptors(bool owns_descriptors) { |
| 4647 | set_bit_field3(OwnsDescriptors::update(bit_field3(), owns_descriptors)); |
| 4648 | } |
| 4649 | |
| 4650 | |
| 4651 | bool Map::owns_descriptors() { |
| 4652 | return OwnsDescriptors::decode(bit_field3()); |
| 4653 | } |
| 4654 | |
| 4655 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4656 | void Map::set_is_callable() { set_bit_field(bit_field() | (1 << kIsCallable)); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4657 | |
| 4658 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4659 | bool Map::is_callable() const { |
| 4660 | return ((1 << kIsCallable) & bit_field()) != 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4661 | } |
| 4662 | |
| 4663 | |
| 4664 | void Map::deprecate() { |
| 4665 | set_bit_field3(Deprecated::update(bit_field3(), true)); |
| 4666 | } |
| 4667 | |
| 4668 | |
| 4669 | bool Map::is_deprecated() { |
| 4670 | return Deprecated::decode(bit_field3()); |
| 4671 | } |
| 4672 | |
| 4673 | |
| 4674 | void Map::set_migration_target(bool value) { |
| 4675 | set_bit_field3(IsMigrationTarget::update(bit_field3(), value)); |
| 4676 | } |
| 4677 | |
| 4678 | |
| 4679 | bool Map::is_migration_target() { |
| 4680 | return IsMigrationTarget::decode(bit_field3()); |
| 4681 | } |
| 4682 | |
| 4683 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4684 | void Map::set_new_target_is_base(bool value) { |
| 4685 | set_bit_field3(NewTargetIsBase::update(bit_field3(), value)); |
| 4686 | } |
| 4687 | |
| 4688 | |
| 4689 | bool Map::new_target_is_base() { return NewTargetIsBase::decode(bit_field3()); } |
| 4690 | |
| 4691 | |
| 4692 | void Map::set_construction_counter(int value) { |
| 4693 | set_bit_field3(ConstructionCounter::update(bit_field3(), value)); |
| 4694 | } |
| 4695 | |
| 4696 | |
| 4697 | int Map::construction_counter() { |
| 4698 | return ConstructionCounter::decode(bit_field3()); |
| 4699 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4700 | |
| 4701 | |
| 4702 | void Map::mark_unstable() { |
| 4703 | set_bit_field3(IsUnstable::update(bit_field3(), true)); |
| 4704 | } |
| 4705 | |
| 4706 | |
| 4707 | bool Map::is_stable() { |
| 4708 | return !IsUnstable::decode(bit_field3()); |
| 4709 | } |
| 4710 | |
| 4711 | |
| 4712 | bool Map::has_code_cache() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4713 | // Code caches are always fixed arrays. The empty fixed array is used as a |
| 4714 | // sentinel for an absent code cache. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4715 | return code_cache()->length() != 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4716 | } |
| 4717 | |
| 4718 | |
| 4719 | bool Map::CanBeDeprecated() { |
| 4720 | int descriptor = LastAdded(); |
| 4721 | for (int i = 0; i <= descriptor; i++) { |
| 4722 | PropertyDetails details = instance_descriptors()->GetDetails(i); |
| 4723 | if (details.representation().IsNone()) return true; |
| 4724 | if (details.representation().IsSmi()) return true; |
| 4725 | if (details.representation().IsDouble()) return true; |
| 4726 | if (details.representation().IsHeapObject()) return true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4727 | if (details.type() == DATA_CONSTANT) return true; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4728 | } |
| 4729 | return false; |
| 4730 | } |
| 4731 | |
| 4732 | |
| 4733 | void Map::NotifyLeafMapLayoutChange() { |
| 4734 | if (is_stable()) { |
| 4735 | mark_unstable(); |
| 4736 | dependent_code()->DeoptimizeDependentCodeGroup( |
| 4737 | GetIsolate(), |
| 4738 | DependentCode::kPrototypeCheckGroup); |
| 4739 | } |
| 4740 | } |
| 4741 | |
| 4742 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4743 | bool Map::CanTransition() { |
| 4744 | // Only JSObject and subtypes have map transitions and back pointers. |
| 4745 | STATIC_ASSERT(LAST_TYPE == LAST_JS_OBJECT_TYPE); |
| 4746 | return instance_type() >= FIRST_JS_OBJECT_TYPE; |
| 4747 | } |
| 4748 | |
| 4749 | |
| 4750 | bool Map::IsBooleanMap() { return this == GetHeap()->boolean_map(); } |
| 4751 | bool Map::IsPrimitiveMap() { |
| 4752 | STATIC_ASSERT(FIRST_PRIMITIVE_TYPE == FIRST_TYPE); |
| 4753 | return instance_type() <= LAST_PRIMITIVE_TYPE; |
| 4754 | } |
| 4755 | bool Map::IsJSReceiverMap() { |
| 4756 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 4757 | return instance_type() >= FIRST_JS_RECEIVER_TYPE; |
| 4758 | } |
| 4759 | bool Map::IsJSObjectMap() { |
| 4760 | STATIC_ASSERT(LAST_JS_OBJECT_TYPE == LAST_TYPE); |
| 4761 | return instance_type() >= FIRST_JS_OBJECT_TYPE; |
| 4762 | } |
| 4763 | bool Map::IsJSArrayMap() { return instance_type() == JS_ARRAY_TYPE; } |
| 4764 | bool Map::IsJSFunctionMap() { return instance_type() == JS_FUNCTION_TYPE; } |
| 4765 | bool Map::IsStringMap() { return instance_type() < FIRST_NONSTRING_TYPE; } |
| 4766 | bool Map::IsJSProxyMap() { return instance_type() == JS_PROXY_TYPE; } |
| 4767 | bool Map::IsJSGlobalProxyMap() { |
| 4768 | return instance_type() == JS_GLOBAL_PROXY_TYPE; |
| 4769 | } |
| 4770 | bool Map::IsJSGlobalObjectMap() { |
| 4771 | return instance_type() == JS_GLOBAL_OBJECT_TYPE; |
| 4772 | } |
| 4773 | bool Map::IsJSTypedArrayMap() { return instance_type() == JS_TYPED_ARRAY_TYPE; } |
| 4774 | bool Map::IsJSDataViewMap() { return instance_type() == JS_DATA_VIEW_TYPE; } |
| 4775 | |
| 4776 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4777 | bool Map::CanOmitMapChecks() { |
| 4778 | return is_stable() && FLAG_omit_map_checks_for_leaf_maps; |
| 4779 | } |
| 4780 | |
| 4781 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4782 | DependentCode* DependentCode::next_link() { |
| 4783 | return DependentCode::cast(get(kNextLinkIndex)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4784 | } |
| 4785 | |
| 4786 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4787 | void DependentCode::set_next_link(DependentCode* next) { |
| 4788 | set(kNextLinkIndex, next); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4789 | } |
| 4790 | |
| 4791 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4792 | int DependentCode::flags() { return Smi::cast(get(kFlagsIndex))->value(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4793 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4794 | |
| 4795 | void DependentCode::set_flags(int flags) { |
| 4796 | set(kFlagsIndex, Smi::FromInt(flags)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4797 | } |
| 4798 | |
| 4799 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4800 | int DependentCode::count() { return CountField::decode(flags()); } |
| 4801 | |
| 4802 | void DependentCode::set_count(int value) { |
| 4803 | set_flags(CountField::update(flags(), value)); |
| 4804 | } |
| 4805 | |
| 4806 | |
| 4807 | DependentCode::DependencyGroup DependentCode::group() { |
| 4808 | return static_cast<DependencyGroup>(GroupField::decode(flags())); |
| 4809 | } |
| 4810 | |
| 4811 | |
| 4812 | void DependentCode::set_group(DependentCode::DependencyGroup group) { |
| 4813 | set_flags(GroupField::update(flags(), static_cast<int>(group))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4814 | } |
| 4815 | |
| 4816 | |
| 4817 | void DependentCode::set_object_at(int i, Object* object) { |
| 4818 | set(kCodesStartIndex + i, object); |
| 4819 | } |
| 4820 | |
| 4821 | |
| 4822 | Object* DependentCode::object_at(int i) { |
| 4823 | return get(kCodesStartIndex + i); |
| 4824 | } |
| 4825 | |
| 4826 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4827 | void DependentCode::clear_at(int i) { |
| 4828 | set_undefined(kCodesStartIndex + i); |
| 4829 | } |
| 4830 | |
| 4831 | |
| 4832 | void DependentCode::copy(int from, int to) { |
| 4833 | set(kCodesStartIndex + to, get(kCodesStartIndex + from)); |
| 4834 | } |
| 4835 | |
| 4836 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4837 | void Code::set_flags(Code::Flags flags) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4838 | STATIC_ASSERT(Code::NUMBER_OF_KINDS <= KindField::kMax + 1); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4839 | WRITE_INT_FIELD(this, kFlagsOffset, flags); |
| 4840 | } |
| 4841 | |
| 4842 | |
| 4843 | Code::Kind Code::kind() { |
| 4844 | return ExtractKindFromFlags(flags()); |
| 4845 | } |
| 4846 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4847 | bool Code::IsCodeStubOrIC() { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4848 | switch (kind()) { |
| 4849 | case STUB: |
| 4850 | case HANDLER: |
| 4851 | #define CASE_KIND(kind) case kind: |
| 4852 | IC_KIND_LIST(CASE_KIND) |
| 4853 | #undef CASE_KIND |
| 4854 | return true; |
| 4855 | default: |
| 4856 | return false; |
| 4857 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4858 | } |
| 4859 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4860 | ExtraICState Code::extra_ic_state() { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4861 | DCHECK(is_inline_cache_stub() || is_debug_stub()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4862 | return ExtractExtraICStateFromFlags(flags()); |
| 4863 | } |
| 4864 | |
| 4865 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4866 | // For initialization. |
| 4867 | void Code::set_raw_kind_specific_flags1(int value) { |
| 4868 | WRITE_INT_FIELD(this, kKindSpecificFlags1Offset, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4869 | } |
| 4870 | |
| 4871 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4872 | void Code::set_raw_kind_specific_flags2(int value) { |
| 4873 | WRITE_INT_FIELD(this, kKindSpecificFlags2Offset, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4874 | } |
| 4875 | |
| 4876 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4877 | inline bool Code::is_crankshafted() { |
| 4878 | return IsCrankshaftedField::decode( |
| 4879 | READ_UINT32_FIELD(this, kKindSpecificFlags2Offset)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4880 | } |
| 4881 | |
| 4882 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4883 | inline bool Code::is_hydrogen_stub() { |
| 4884 | return is_crankshafted() && kind() != OPTIMIZED_FUNCTION; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4885 | } |
| 4886 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4887 | inline bool Code::is_interpreter_trampoline_builtin() { |
| 4888 | Builtins* builtins = GetIsolate()->builtins(); |
| 4889 | return this == *builtins->InterpreterEntryTrampoline() || |
| 4890 | this == *builtins->InterpreterEnterBytecodeDispatch() || |
| 4891 | this == *builtins->InterpreterMarkBaselineOnReturn(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4892 | } |
| 4893 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4894 | inline bool Code::has_unwinding_info() const { |
| 4895 | return HasUnwindingInfoField::decode(READ_UINT32_FIELD(this, kFlagsOffset)); |
| 4896 | } |
| 4897 | |
| 4898 | inline void Code::set_has_unwinding_info(bool state) { |
| 4899 | uint32_t previous = READ_UINT32_FIELD(this, kFlagsOffset); |
| 4900 | uint32_t updated_value = HasUnwindingInfoField::update(previous, state); |
| 4901 | WRITE_UINT32_FIELD(this, kFlagsOffset, updated_value); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4902 | } |
| 4903 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4904 | inline void Code::set_is_crankshafted(bool value) { |
| 4905 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags2Offset); |
| 4906 | int updated = IsCrankshaftedField::update(previous, value); |
| 4907 | WRITE_UINT32_FIELD(this, kKindSpecificFlags2Offset, updated); |
| 4908 | } |
| 4909 | |
| 4910 | |
| 4911 | inline bool Code::is_turbofanned() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4912 | return IsTurbofannedField::decode( |
| 4913 | READ_UINT32_FIELD(this, kKindSpecificFlags1Offset)); |
| 4914 | } |
| 4915 | |
| 4916 | |
| 4917 | inline void Code::set_is_turbofanned(bool value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4918 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset); |
| 4919 | int updated = IsTurbofannedField::update(previous, value); |
| 4920 | WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4921 | } |
| 4922 | |
| 4923 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4924 | inline bool Code::can_have_weak_objects() { |
| 4925 | DCHECK(kind() == OPTIMIZED_FUNCTION); |
| 4926 | return CanHaveWeakObjectsField::decode( |
| 4927 | READ_UINT32_FIELD(this, kKindSpecificFlags1Offset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 4928 | } |
| 4929 | |
| 4930 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4931 | inline void Code::set_can_have_weak_objects(bool value) { |
| 4932 | DCHECK(kind() == OPTIMIZED_FUNCTION); |
| 4933 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset); |
| 4934 | int updated = CanHaveWeakObjectsField::update(previous, value); |
| 4935 | WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 4936 | } |
| 4937 | |
| 4938 | |
| 4939 | bool Code::has_deoptimization_support() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4940 | DCHECK_EQ(FUNCTION, kind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4941 | unsigned flags = READ_UINT32_FIELD(this, kFullCodeFlags); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4942 | return FullCodeFlagsHasDeoptimizationSupportField::decode(flags); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 4943 | } |
| 4944 | |
| 4945 | |
| 4946 | void Code::set_has_deoptimization_support(bool value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4947 | DCHECK_EQ(FUNCTION, kind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4948 | unsigned flags = READ_UINT32_FIELD(this, kFullCodeFlags); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4949 | flags = FullCodeFlagsHasDeoptimizationSupportField::update(flags, value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4950 | WRITE_UINT32_FIELD(this, kFullCodeFlags, flags); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4951 | } |
| 4952 | |
| 4953 | |
| 4954 | bool Code::has_debug_break_slots() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4955 | DCHECK_EQ(FUNCTION, kind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4956 | unsigned flags = READ_UINT32_FIELD(this, kFullCodeFlags); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4957 | return FullCodeFlagsHasDebugBreakSlotsField::decode(flags); |
| 4958 | } |
| 4959 | |
| 4960 | |
| 4961 | void Code::set_has_debug_break_slots(bool value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4962 | DCHECK_EQ(FUNCTION, kind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4963 | unsigned flags = READ_UINT32_FIELD(this, kFullCodeFlags); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4964 | flags = FullCodeFlagsHasDebugBreakSlotsField::update(flags, value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4965 | WRITE_UINT32_FIELD(this, kFullCodeFlags, flags); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4966 | } |
| 4967 | |
| 4968 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4969 | bool Code::has_reloc_info_for_serialization() { |
| 4970 | DCHECK_EQ(FUNCTION, kind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4971 | unsigned flags = READ_UINT32_FIELD(this, kFullCodeFlags); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4972 | return FullCodeFlagsHasRelocInfoForSerialization::decode(flags); |
| 4973 | } |
| 4974 | |
| 4975 | |
| 4976 | void Code::set_has_reloc_info_for_serialization(bool value) { |
| 4977 | DCHECK_EQ(FUNCTION, kind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4978 | unsigned flags = READ_UINT32_FIELD(this, kFullCodeFlags); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4979 | flags = FullCodeFlagsHasRelocInfoForSerialization::update(flags, value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4980 | WRITE_UINT32_FIELD(this, kFullCodeFlags, flags); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4981 | } |
| 4982 | |
| 4983 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 4984 | int Code::allow_osr_at_loop_nesting_level() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4985 | DCHECK_EQ(FUNCTION, kind()); |
| 4986 | int fields = READ_UINT32_FIELD(this, kKindSpecificFlags2Offset); |
| 4987 | return AllowOSRAtLoopNestingLevelField::decode(fields); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 4988 | } |
| 4989 | |
| 4990 | |
| 4991 | void Code::set_allow_osr_at_loop_nesting_level(int level) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4992 | DCHECK_EQ(FUNCTION, kind()); |
| 4993 | DCHECK(level >= 0 && level <= kMaxLoopNestingMarker); |
| 4994 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags2Offset); |
| 4995 | int updated = AllowOSRAtLoopNestingLevelField::update(previous, level); |
| 4996 | WRITE_UINT32_FIELD(this, kKindSpecificFlags2Offset, updated); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 4997 | } |
| 4998 | |
| 4999 | |
Ben Murdoch | 8f9999f | 2012-04-23 10:39:17 +0100 | [diff] [blame] | 5000 | int Code::profiler_ticks() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5001 | DCHECK_EQ(FUNCTION, kind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5002 | return ProfilerTicksField::decode( |
| 5003 | READ_UINT32_FIELD(this, kKindSpecificFlags1Offset)); |
Ben Murdoch | 8f9999f | 2012-04-23 10:39:17 +0100 | [diff] [blame] | 5004 | } |
| 5005 | |
| 5006 | |
| 5007 | void Code::set_profiler_ticks(int ticks) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5008 | if (kind() == FUNCTION) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5009 | unsigned previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset); |
| 5010 | unsigned updated = ProfilerTicksField::update(previous, ticks); |
| 5011 | WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5012 | } |
| 5013 | } |
| 5014 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5015 | int Code::builtin_index() { return READ_INT_FIELD(this, kBuiltinIndexOffset); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5016 | |
| 5017 | void Code::set_builtin_index(int index) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5018 | WRITE_INT_FIELD(this, kBuiltinIndexOffset, index); |
Ben Murdoch | 8f9999f | 2012-04-23 10:39:17 +0100 | [diff] [blame] | 5019 | } |
| 5020 | |
| 5021 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5022 | unsigned Code::stack_slots() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5023 | DCHECK(is_crankshafted()); |
| 5024 | return StackSlotsField::decode( |
| 5025 | READ_UINT32_FIELD(this, kKindSpecificFlags1Offset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5026 | } |
| 5027 | |
| 5028 | |
| 5029 | void Code::set_stack_slots(unsigned slots) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5030 | CHECK(slots <= (1 << kStackSlotsBitCount)); |
| 5031 | DCHECK(is_crankshafted()); |
| 5032 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset); |
| 5033 | int updated = StackSlotsField::update(previous, slots); |
| 5034 | WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5035 | } |
| 5036 | |
| 5037 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5038 | unsigned Code::safepoint_table_offset() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5039 | DCHECK(is_crankshafted()); |
| 5040 | return SafepointTableOffsetField::decode( |
| 5041 | READ_UINT32_FIELD(this, kKindSpecificFlags2Offset)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5042 | } |
| 5043 | |
| 5044 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5045 | void Code::set_safepoint_table_offset(unsigned offset) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5046 | CHECK(offset <= (1 << kSafepointTableOffsetBitCount)); |
| 5047 | DCHECK(is_crankshafted()); |
| 5048 | DCHECK(IsAligned(offset, static_cast<unsigned>(kIntSize))); |
| 5049 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags2Offset); |
| 5050 | int updated = SafepointTableOffsetField::update(previous, offset); |
| 5051 | WRITE_UINT32_FIELD(this, kKindSpecificFlags2Offset, updated); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5052 | } |
| 5053 | |
| 5054 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5055 | unsigned Code::back_edge_table_offset() { |
| 5056 | DCHECK_EQ(FUNCTION, kind()); |
| 5057 | return BackEdgeTableOffsetField::decode( |
| 5058 | READ_UINT32_FIELD(this, kKindSpecificFlags2Offset)) << kPointerSizeLog2; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5059 | } |
| 5060 | |
| 5061 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5062 | void Code::set_back_edge_table_offset(unsigned offset) { |
| 5063 | DCHECK_EQ(FUNCTION, kind()); |
| 5064 | DCHECK(IsAligned(offset, static_cast<unsigned>(kPointerSize))); |
| 5065 | offset = offset >> kPointerSizeLog2; |
| 5066 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags2Offset); |
| 5067 | int updated = BackEdgeTableOffsetField::update(previous, offset); |
| 5068 | WRITE_UINT32_FIELD(this, kKindSpecificFlags2Offset, updated); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5069 | } |
| 5070 | |
| 5071 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5072 | bool Code::back_edges_patched_for_osr() { |
| 5073 | DCHECK_EQ(FUNCTION, kind()); |
| 5074 | return allow_osr_at_loop_nesting_level() > 0; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5075 | } |
| 5076 | |
| 5077 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5078 | uint16_t Code::to_boolean_state() { return extra_ic_state(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5079 | |
| 5080 | |
| 5081 | bool Code::marked_for_deoptimization() { |
| 5082 | DCHECK(kind() == OPTIMIZED_FUNCTION); |
| 5083 | return MarkedForDeoptimizationField::decode( |
| 5084 | READ_UINT32_FIELD(this, kKindSpecificFlags1Offset)); |
| 5085 | } |
| 5086 | |
| 5087 | |
| 5088 | void Code::set_marked_for_deoptimization(bool flag) { |
| 5089 | DCHECK(kind() == OPTIMIZED_FUNCTION); |
| 5090 | DCHECK(!flag || AllowDeoptimization::IsAllowed(GetIsolate())); |
| 5091 | int previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset); |
| 5092 | int updated = MarkedForDeoptimizationField::update(previous, flag); |
| 5093 | WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated); |
| 5094 | } |
| 5095 | |
| 5096 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5097 | bool Code::is_inline_cache_stub() { |
| 5098 | Kind kind = this->kind(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5099 | switch (kind) { |
| 5100 | #define CASE(name) case name: return true; |
| 5101 | IC_KIND_LIST(CASE) |
| 5102 | #undef CASE |
| 5103 | default: return false; |
| 5104 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5105 | } |
| 5106 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5107 | bool Code::is_debug_stub() { |
| 5108 | if (kind() != BUILTIN) return false; |
| 5109 | switch (builtin_index()) { |
| 5110 | #define CASE_DEBUG_BUILTIN(name, kind, extra) case Builtins::k##name: |
| 5111 | BUILTIN_LIST_DEBUG_A(CASE_DEBUG_BUILTIN) |
| 5112 | #undef CASE_DEBUG_BUILTIN |
| 5113 | return true; |
| 5114 | default: |
| 5115 | return false; |
| 5116 | } |
| 5117 | return false; |
| 5118 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5119 | bool Code::is_handler() { return kind() == HANDLER; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5120 | bool Code::is_call_stub() { return kind() == CALL_IC; } |
| 5121 | bool Code::is_binary_op_stub() { return kind() == BINARY_OP_IC; } |
| 5122 | bool Code::is_compare_ic_stub() { return kind() == COMPARE_IC; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5123 | bool Code::is_to_boolean_ic_stub() { return kind() == TO_BOOLEAN_IC; } |
| 5124 | bool Code::is_optimized_code() { return kind() == OPTIMIZED_FUNCTION; } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5125 | bool Code::is_wasm_code() { return kind() == WASM_FUNCTION; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5126 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5127 | Address Code::constant_pool() { |
| 5128 | Address constant_pool = NULL; |
| 5129 | if (FLAG_enable_embedded_constant_pool) { |
| 5130 | int offset = constant_pool_offset(); |
| 5131 | if (offset < instruction_size()) { |
| 5132 | constant_pool = FIELD_ADDR(this, kHeaderSize + offset); |
| 5133 | } |
| 5134 | } |
| 5135 | return constant_pool; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5136 | } |
| 5137 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5138 | Code::Flags Code::ComputeFlags(Kind kind, ExtraICState extra_ic_state, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5139 | CacheHolderFlag holder) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5140 | // TODO(ishell): remove ICStateField. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5141 | // Compute the bit mask. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5142 | unsigned int bits = KindField::encode(kind) | |
| 5143 | ICStateField::encode(MONOMORPHIC) | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5144 | ExtraICStateField::encode(extra_ic_state) | |
| 5145 | CacheHolderField::encode(holder); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 5146 | return static_cast<Flags>(bits); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5147 | } |
| 5148 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5149 | Code::Flags Code::ComputeHandlerFlags(Kind handler_kind, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5150 | CacheHolderFlag holder) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5151 | return ComputeFlags(Code::HANDLER, handler_kind, holder); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5152 | } |
| 5153 | |
| 5154 | |
| 5155 | Code::Kind Code::ExtractKindFromFlags(Flags flags) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 5156 | return KindField::decode(flags); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5157 | } |
| 5158 | |
| 5159 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5160 | ExtraICState Code::ExtractExtraICStateFromFlags(Flags flags) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 5161 | return ExtraICStateField::decode(flags); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5162 | } |
| 5163 | |
| 5164 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5165 | CacheHolderFlag Code::ExtractCacheHolderFromFlags(Flags flags) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 5166 | return CacheHolderField::decode(flags); |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 5167 | } |
| 5168 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5169 | Code::Flags Code::RemoveHolderFromFlags(Flags flags) { |
| 5170 | int bits = flags & ~CacheHolderField::kMask; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5171 | return static_cast<Flags>(bits); |
| 5172 | } |
| 5173 | |
| 5174 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5175 | Code* Code::GetCodeFromTargetAddress(Address address) { |
| 5176 | HeapObject* code = HeapObject::FromAddress(address - Code::kHeaderSize); |
| 5177 | // GetCodeFromTargetAddress might be called when marking objects during mark |
| 5178 | // sweep. reinterpret_cast is therefore used instead of the more appropriate |
| 5179 | // Code::cast. Code::cast does not work when the object's map is |
| 5180 | // marked. |
| 5181 | Code* result = reinterpret_cast<Code*>(code); |
| 5182 | return result; |
| 5183 | } |
| 5184 | |
| 5185 | |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 5186 | Object* Code::GetObjectFromEntryAddress(Address location_of_address) { |
| 5187 | return HeapObject:: |
| 5188 | FromAddress(Memory::Address_at(location_of_address) - Code::kHeaderSize); |
| 5189 | } |
| 5190 | |
| 5191 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5192 | bool Code::CanContainWeakObjects() { |
| 5193 | return is_optimized_code() && can_have_weak_objects(); |
| 5194 | } |
| 5195 | |
| 5196 | |
| 5197 | bool Code::IsWeakObject(Object* object) { |
| 5198 | return (CanContainWeakObjects() && IsWeakObjectInOptimizedCode(object)); |
| 5199 | } |
| 5200 | |
| 5201 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5202 | bool Code::IsWeakObjectInOptimizedCode(Object* object) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5203 | if (object->IsMap()) { |
| 5204 | return Map::cast(object)->CanTransition() && |
| 5205 | FLAG_weak_embedded_maps_in_optimized_code; |
| 5206 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5207 | if (object->IsCell()) { |
| 5208 | object = Cell::cast(object)->value(); |
| 5209 | } else if (object->IsPropertyCell()) { |
| 5210 | object = PropertyCell::cast(object)->value(); |
| 5211 | } |
| 5212 | if (object->IsJSReceiver()) { |
| 5213 | return FLAG_weak_embedded_objects_in_optimized_code; |
| 5214 | } |
| 5215 | if (object->IsContext()) { |
| 5216 | // Contexts of inlined functions are embedded in optimized code. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5217 | return FLAG_weak_embedded_objects_in_optimized_code; |
| 5218 | } |
| 5219 | return false; |
| 5220 | } |
| 5221 | |
| 5222 | |
| 5223 | class Code::FindAndReplacePattern { |
| 5224 | public: |
| 5225 | FindAndReplacePattern() : count_(0) { } |
| 5226 | void Add(Handle<Map> map_to_find, Handle<Object> obj_to_replace) { |
| 5227 | DCHECK(count_ < kMaxCount); |
| 5228 | find_[count_] = map_to_find; |
| 5229 | replace_[count_] = obj_to_replace; |
| 5230 | ++count_; |
| 5231 | } |
| 5232 | private: |
| 5233 | static const int kMaxCount = 4; |
| 5234 | int count_; |
| 5235 | Handle<Map> find_[kMaxCount]; |
| 5236 | Handle<Object> replace_[kMaxCount]; |
| 5237 | friend class Code; |
| 5238 | }; |
| 5239 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5240 | int AbstractCode::instruction_size() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5241 | if (IsCode()) { |
| 5242 | return GetCode()->instruction_size(); |
| 5243 | } else { |
| 5244 | return GetBytecodeArray()->length(); |
| 5245 | } |
| 5246 | } |
| 5247 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5248 | int AbstractCode::SizeIncludingMetadata() { |
| 5249 | if (IsCode()) { |
| 5250 | return GetCode()->SizeIncludingMetadata(); |
| 5251 | } else { |
| 5252 | return GetBytecodeArray()->SizeIncludingMetadata(); |
| 5253 | } |
| 5254 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5255 | int AbstractCode::ExecutableSize() { |
| 5256 | if (IsCode()) { |
| 5257 | return GetCode()->ExecutableSize(); |
| 5258 | } else { |
| 5259 | return GetBytecodeArray()->BytecodeArraySize(); |
| 5260 | } |
| 5261 | } |
| 5262 | |
| 5263 | Address AbstractCode::instruction_start() { |
| 5264 | if (IsCode()) { |
| 5265 | return GetCode()->instruction_start(); |
| 5266 | } else { |
| 5267 | return GetBytecodeArray()->GetFirstBytecodeAddress(); |
| 5268 | } |
| 5269 | } |
| 5270 | |
| 5271 | Address AbstractCode::instruction_end() { |
| 5272 | if (IsCode()) { |
| 5273 | return GetCode()->instruction_end(); |
| 5274 | } else { |
| 5275 | return GetBytecodeArray()->GetFirstBytecodeAddress() + |
| 5276 | GetBytecodeArray()->length(); |
| 5277 | } |
| 5278 | } |
| 5279 | |
| 5280 | bool AbstractCode::contains(byte* inner_pointer) { |
| 5281 | return (address() <= inner_pointer) && (inner_pointer <= address() + Size()); |
| 5282 | } |
| 5283 | |
| 5284 | AbstractCode::Kind AbstractCode::kind() { |
| 5285 | if (IsCode()) { |
| 5286 | STATIC_ASSERT(AbstractCode::FUNCTION == |
| 5287 | static_cast<AbstractCode::Kind>(Code::FUNCTION)); |
| 5288 | return static_cast<AbstractCode::Kind>(GetCode()->kind()); |
| 5289 | } else { |
| 5290 | return INTERPRETED_FUNCTION; |
| 5291 | } |
| 5292 | } |
| 5293 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5294 | Code* AbstractCode::GetCode() { return Code::cast(this); } |
| 5295 | |
| 5296 | BytecodeArray* AbstractCode::GetBytecodeArray() { |
| 5297 | return BytecodeArray::cast(this); |
| 5298 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5299 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5300 | Object* Map::prototype() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5301 | return READ_FIELD(this, kPrototypeOffset); |
| 5302 | } |
| 5303 | |
| 5304 | |
| 5305 | void Map::set_prototype(Object* value, WriteBarrierMode mode) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5306 | DCHECK(value->IsNull(GetIsolate()) || value->IsJSReceiver()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5307 | WRITE_FIELD(this, kPrototypeOffset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5308 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kPrototypeOffset, value, mode); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5309 | } |
| 5310 | |
| 5311 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5312 | LayoutDescriptor* Map::layout_descriptor_gc_safe() { |
| 5313 | Object* layout_desc = READ_FIELD(this, kLayoutDecriptorOffset); |
| 5314 | return LayoutDescriptor::cast_gc_safe(layout_desc); |
| 5315 | } |
| 5316 | |
| 5317 | |
| 5318 | bool Map::HasFastPointerLayout() const { |
| 5319 | Object* layout_desc = READ_FIELD(this, kLayoutDecriptorOffset); |
| 5320 | return LayoutDescriptor::IsFastPointerLayout(layout_desc); |
| 5321 | } |
| 5322 | |
| 5323 | |
| 5324 | void Map::UpdateDescriptors(DescriptorArray* descriptors, |
| 5325 | LayoutDescriptor* layout_desc) { |
| 5326 | set_instance_descriptors(descriptors); |
| 5327 | if (FLAG_unbox_double_fields) { |
| 5328 | if (layout_descriptor()->IsSlowLayout()) { |
| 5329 | set_layout_descriptor(layout_desc); |
| 5330 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5331 | #ifdef VERIFY_HEAP |
| 5332 | // TODO(ishell): remove these checks from VERIFY_HEAP mode. |
| 5333 | if (FLAG_verify_heap) { |
| 5334 | CHECK(layout_descriptor()->IsConsistentWithMap(this)); |
| 5335 | CHECK(visitor_id() == Heap::GetStaticVisitorIdForMap(this)); |
| 5336 | } |
| 5337 | #else |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5338 | SLOW_DCHECK(layout_descriptor()->IsConsistentWithMap(this)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5339 | DCHECK(visitor_id() == Heap::GetStaticVisitorIdForMap(this)); |
| 5340 | #endif |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5341 | } |
| 5342 | } |
| 5343 | |
| 5344 | |
| 5345 | void Map::InitializeDescriptors(DescriptorArray* descriptors, |
| 5346 | LayoutDescriptor* layout_desc) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5347 | int len = descriptors->number_of_descriptors(); |
| 5348 | set_instance_descriptors(descriptors); |
| 5349 | SetNumberOfOwnDescriptors(len); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5350 | |
| 5351 | if (FLAG_unbox_double_fields) { |
| 5352 | set_layout_descriptor(layout_desc); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5353 | #ifdef VERIFY_HEAP |
| 5354 | // TODO(ishell): remove these checks from VERIFY_HEAP mode. |
| 5355 | if (FLAG_verify_heap) { |
| 5356 | CHECK(layout_descriptor()->IsConsistentWithMap(this)); |
| 5357 | } |
| 5358 | #else |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5359 | SLOW_DCHECK(layout_descriptor()->IsConsistentWithMap(this)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5360 | #endif |
| 5361 | set_visitor_id(Heap::GetStaticVisitorIdForMap(this)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5362 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5363 | } |
| 5364 | |
| 5365 | |
| 5366 | ACCESSORS(Map, instance_descriptors, DescriptorArray, kDescriptorsOffset) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5367 | ACCESSORS(Map, layout_descriptor, LayoutDescriptor, kLayoutDecriptorOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5368 | |
| 5369 | |
| 5370 | void Map::set_bit_field3(uint32_t bits) { |
| 5371 | if (kInt32Size != kPointerSize) { |
| 5372 | WRITE_UINT32_FIELD(this, kBitField3Offset + kInt32Size, 0); |
| 5373 | } |
| 5374 | WRITE_UINT32_FIELD(this, kBitField3Offset, bits); |
| 5375 | } |
| 5376 | |
| 5377 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5378 | uint32_t Map::bit_field3() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5379 | return READ_UINT32_FIELD(this, kBitField3Offset); |
| 5380 | } |
| 5381 | |
| 5382 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5383 | LayoutDescriptor* Map::GetLayoutDescriptor() { |
| 5384 | return FLAG_unbox_double_fields ? layout_descriptor() |
| 5385 | : LayoutDescriptor::FastPointerLayout(); |
| 5386 | } |
| 5387 | |
| 5388 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5389 | void Map::AppendDescriptor(Descriptor* desc) { |
| 5390 | DescriptorArray* descriptors = instance_descriptors(); |
| 5391 | int number_of_own_descriptors = NumberOfOwnDescriptors(); |
| 5392 | DCHECK(descriptors->number_of_descriptors() == number_of_own_descriptors); |
| 5393 | descriptors->Append(desc); |
| 5394 | SetNumberOfOwnDescriptors(number_of_own_descriptors + 1); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5395 | |
| 5396 | // This function does not support appending double field descriptors and |
| 5397 | // it should never try to (otherwise, layout descriptor must be updated too). |
| 5398 | #ifdef DEBUG |
| 5399 | PropertyDetails details = desc->GetDetails(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5400 | CHECK(details.type() != DATA || !details.representation().IsDouble()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5401 | #endif |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5402 | } |
| 5403 | |
| 5404 | |
| 5405 | Object* Map::GetBackPointer() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5406 | Object* object = constructor_or_backpointer(); |
| 5407 | if (object->IsMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5408 | return object; |
| 5409 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5410 | return GetIsolate()->heap()->undefined_value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5411 | } |
| 5412 | |
| 5413 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5414 | Map* Map::ElementsTransitionMap() { |
| 5415 | return TransitionArray::SearchSpecial( |
| 5416 | this, GetHeap()->elements_transition_symbol()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5417 | } |
| 5418 | |
| 5419 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5420 | ACCESSORS(Map, raw_transitions, Object, kTransitionsOrPrototypeInfoOffset) |
| 5421 | |
| 5422 | |
| 5423 | Object* Map::prototype_info() const { |
| 5424 | DCHECK(is_prototype_map()); |
| 5425 | return READ_FIELD(this, Map::kTransitionsOrPrototypeInfoOffset); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5426 | } |
| 5427 | |
| 5428 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5429 | void Map::set_prototype_info(Object* value, WriteBarrierMode mode) { |
| 5430 | DCHECK(is_prototype_map()); |
| 5431 | WRITE_FIELD(this, Map::kTransitionsOrPrototypeInfoOffset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5432 | CONDITIONAL_WRITE_BARRIER( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5433 | GetHeap(), this, Map::kTransitionsOrPrototypeInfoOffset, value, mode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5434 | } |
| 5435 | |
| 5436 | |
| 5437 | void Map::SetBackPointer(Object* value, WriteBarrierMode mode) { |
| 5438 | DCHECK(instance_type() >= FIRST_JS_RECEIVER_TYPE); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5439 | DCHECK(value->IsMap()); |
| 5440 | DCHECK(GetBackPointer()->IsUndefined(GetIsolate())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5441 | DCHECK(!value->IsMap() || |
| 5442 | Map::cast(value)->GetConstructor() == constructor_or_backpointer()); |
| 5443 | set_constructor_or_backpointer(value, mode); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5444 | } |
| 5445 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5446 | ACCESSORS(Map, code_cache, FixedArray, kCodeCacheOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5447 | ACCESSORS(Map, dependent_code, DependentCode, kDependentCodeOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5448 | ACCESSORS(Map, weak_cell_cache, Object, kWeakCellCacheOffset) |
| 5449 | ACCESSORS(Map, constructor_or_backpointer, Object, |
| 5450 | kConstructorOrBackPointerOffset) |
| 5451 | |
| 5452 | |
| 5453 | Object* Map::GetConstructor() const { |
| 5454 | Object* maybe_constructor = constructor_or_backpointer(); |
| 5455 | // Follow any back pointers. |
| 5456 | while (maybe_constructor->IsMap()) { |
| 5457 | maybe_constructor = |
| 5458 | Map::cast(maybe_constructor)->constructor_or_backpointer(); |
| 5459 | } |
| 5460 | return maybe_constructor; |
| 5461 | } |
| 5462 | |
| 5463 | |
| 5464 | void Map::SetConstructor(Object* constructor, WriteBarrierMode mode) { |
| 5465 | // Never overwrite a back pointer with a constructor. |
| 5466 | DCHECK(!constructor_or_backpointer()->IsMap()); |
| 5467 | set_constructor_or_backpointer(constructor, mode); |
| 5468 | } |
| 5469 | |
| 5470 | |
| 5471 | Handle<Map> Map::CopyInitialMap(Handle<Map> map) { |
| 5472 | return CopyInitialMap(map, map->instance_size(), map->GetInObjectProperties(), |
| 5473 | map->unused_property_fields()); |
| 5474 | } |
| 5475 | |
| 5476 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5477 | ACCESSORS(JSBoundFunction, bound_target_function, JSReceiver, |
| 5478 | kBoundTargetFunctionOffset) |
| 5479 | ACCESSORS(JSBoundFunction, bound_this, Object, kBoundThisOffset) |
| 5480 | ACCESSORS(JSBoundFunction, bound_arguments, FixedArray, kBoundArgumentsOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5481 | |
| 5482 | ACCESSORS(JSFunction, shared, SharedFunctionInfo, kSharedFunctionInfoOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5483 | ACCESSORS(JSFunction, literals, LiteralsArray, kLiteralsOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5484 | ACCESSORS(JSFunction, next_function_link, Object, kNextFunctionLinkOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5485 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5486 | ACCESSORS(JSGlobalObject, native_context, Context, kNativeContextOffset) |
| 5487 | ACCESSORS(JSGlobalObject, global_proxy, JSObject, kGlobalProxyOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5488 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5489 | ACCESSORS(JSGlobalProxy, native_context, Object, kNativeContextOffset) |
| 5490 | ACCESSORS(JSGlobalProxy, hash, Object, kHashOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5491 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5492 | ACCESSORS(AccessorInfo, name, Object, kNameOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5493 | SMI_ACCESSORS(AccessorInfo, flag, kFlagOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5494 | ACCESSORS(AccessorInfo, expected_receiver_type, Object, |
| 5495 | kExpectedReceiverTypeOffset) |
| 5496 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5497 | ACCESSORS(AccessorInfo, getter, Object, kGetterOffset) |
| 5498 | ACCESSORS(AccessorInfo, setter, Object, kSetterOffset) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5499 | ACCESSORS(AccessorInfo, js_getter, Object, kJsGetterOffset) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5500 | ACCESSORS(AccessorInfo, data, Object, kDataOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5501 | |
| 5502 | ACCESSORS(Box, value, Object, kValueOffset) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5503 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5504 | Map* PrototypeInfo::ObjectCreateMap() { |
| 5505 | return Map::cast(WeakCell::cast(object_create_map())->value()); |
| 5506 | } |
| 5507 | |
| 5508 | // static |
| 5509 | void PrototypeInfo::SetObjectCreateMap(Handle<PrototypeInfo> info, |
| 5510 | Handle<Map> map) { |
| 5511 | Handle<WeakCell> cell = Map::WeakCellForMap(map); |
| 5512 | info->set_object_create_map(*cell); |
| 5513 | } |
| 5514 | |
| 5515 | bool PrototypeInfo::HasObjectCreateMap() { |
| 5516 | Object* cache = object_create_map(); |
| 5517 | return cache->IsWeakCell() && !WeakCell::cast(cache)->cleared(); |
| 5518 | } |
| 5519 | |
| 5520 | bool FunctionTemplateInfo::instantiated() { |
| 5521 | return shared_function_info()->IsSharedFunctionInfo(); |
| 5522 | } |
| 5523 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5524 | ACCESSORS(PrototypeInfo, prototype_users, Object, kPrototypeUsersOffset) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5525 | ACCESSORS(PrototypeInfo, object_create_map, Object, kObjectCreateMap) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5526 | SMI_ACCESSORS(PrototypeInfo, registry_slot, kRegistrySlotOffset) |
| 5527 | ACCESSORS(PrototypeInfo, validity_cell, Object, kValidityCellOffset) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5528 | SMI_ACCESSORS(PrototypeInfo, bit_field, kBitFieldOffset) |
| 5529 | BOOL_ACCESSORS(PrototypeInfo, bit_field, should_be_fast_map, kShouldBeFastBit) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5530 | |
| 5531 | ACCESSORS(SloppyBlockWithEvalContextExtension, scope_info, ScopeInfo, |
| 5532 | kScopeInfoOffset) |
| 5533 | ACCESSORS(SloppyBlockWithEvalContextExtension, extension, JSObject, |
| 5534 | kExtensionOffset) |
| 5535 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5536 | ACCESSORS(AccessorPair, getter, Object, kGetterOffset) |
| 5537 | ACCESSORS(AccessorPair, setter, Object, kSetterOffset) |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 5538 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5539 | ACCESSORS(AccessCheckInfo, callback, Object, kCallbackOffset) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5540 | ACCESSORS(AccessCheckInfo, named_interceptor, Object, kNamedInterceptorOffset) |
| 5541 | ACCESSORS(AccessCheckInfo, indexed_interceptor, Object, |
| 5542 | kIndexedInterceptorOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5543 | ACCESSORS(AccessCheckInfo, data, Object, kDataOffset) |
| 5544 | |
| 5545 | ACCESSORS(InterceptorInfo, getter, Object, kGetterOffset) |
| 5546 | ACCESSORS(InterceptorInfo, setter, Object, kSetterOffset) |
| 5547 | ACCESSORS(InterceptorInfo, query, Object, kQueryOffset) |
| 5548 | ACCESSORS(InterceptorInfo, deleter, Object, kDeleterOffset) |
| 5549 | ACCESSORS(InterceptorInfo, enumerator, Object, kEnumeratorOffset) |
| 5550 | ACCESSORS(InterceptorInfo, data, Object, kDataOffset) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5551 | SMI_ACCESSORS(InterceptorInfo, flags, kFlagsOffset) |
| 5552 | BOOL_ACCESSORS(InterceptorInfo, flags, can_intercept_symbols, |
| 5553 | kCanInterceptSymbolsBit) |
| 5554 | BOOL_ACCESSORS(InterceptorInfo, flags, all_can_read, kAllCanReadBit) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5555 | BOOL_ACCESSORS(InterceptorInfo, flags, non_masking, kNonMasking) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5556 | |
| 5557 | ACCESSORS(CallHandlerInfo, callback, Object, kCallbackOffset) |
| 5558 | ACCESSORS(CallHandlerInfo, data, Object, kDataOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5559 | ACCESSORS(CallHandlerInfo, fast_handler, Object, kFastHandlerOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5560 | |
| 5561 | ACCESSORS(TemplateInfo, tag, Object, kTagOffset) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5562 | ACCESSORS(TemplateInfo, serial_number, Object, kSerialNumberOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5563 | SMI_ACCESSORS(TemplateInfo, number_of_properties, kNumberOfProperties) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5564 | ACCESSORS(TemplateInfo, property_list, Object, kPropertyListOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5565 | ACCESSORS(TemplateInfo, property_accessors, Object, kPropertyAccessorsOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5566 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5567 | ACCESSORS(FunctionTemplateInfo, call_code, Object, kCallCodeOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5568 | ACCESSORS(FunctionTemplateInfo, prototype_template, Object, |
| 5569 | kPrototypeTemplateOffset) |
| 5570 | ACCESSORS(FunctionTemplateInfo, parent_template, Object, kParentTemplateOffset) |
| 5571 | ACCESSORS(FunctionTemplateInfo, named_property_handler, Object, |
| 5572 | kNamedPropertyHandlerOffset) |
| 5573 | ACCESSORS(FunctionTemplateInfo, indexed_property_handler, Object, |
| 5574 | kIndexedPropertyHandlerOffset) |
| 5575 | ACCESSORS(FunctionTemplateInfo, instance_template, Object, |
| 5576 | kInstanceTemplateOffset) |
| 5577 | ACCESSORS(FunctionTemplateInfo, class_name, Object, kClassNameOffset) |
| 5578 | ACCESSORS(FunctionTemplateInfo, signature, Object, kSignatureOffset) |
| 5579 | ACCESSORS(FunctionTemplateInfo, instance_call_handler, Object, |
| 5580 | kInstanceCallHandlerOffset) |
| 5581 | ACCESSORS(FunctionTemplateInfo, access_check_info, Object, |
| 5582 | kAccessCheckInfoOffset) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5583 | ACCESSORS(FunctionTemplateInfo, shared_function_info, Object, |
| 5584 | kSharedFunctionInfoOffset) |
| 5585 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5586 | SMI_ACCESSORS(FunctionTemplateInfo, flag, kFlagOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5587 | |
| 5588 | ACCESSORS(ObjectTemplateInfo, constructor, Object, kConstructorOffset) |
| 5589 | ACCESSORS(ObjectTemplateInfo, internal_field_count, Object, |
| 5590 | kInternalFieldCountOffset) |
| 5591 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5592 | ACCESSORS(AllocationSite, transition_info, Object, kTransitionInfoOffset) |
| 5593 | ACCESSORS(AllocationSite, nested_site, Object, kNestedSiteOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5594 | SMI_ACCESSORS(AllocationSite, pretenure_data, kPretenureDataOffset) |
| 5595 | SMI_ACCESSORS(AllocationSite, pretenure_create_count, |
| 5596 | kPretenureCreateCountOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5597 | ACCESSORS(AllocationSite, dependent_code, DependentCode, |
| 5598 | kDependentCodeOffset) |
| 5599 | ACCESSORS(AllocationSite, weak_next, Object, kWeakNextOffset) |
| 5600 | ACCESSORS(AllocationMemento, allocation_site, Object, kAllocationSiteOffset) |
| 5601 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5602 | ACCESSORS(Script, source, Object, kSourceOffset) |
| 5603 | ACCESSORS(Script, name, Object, kNameOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5604 | SMI_ACCESSORS(Script, id, kIdOffset) |
| 5605 | SMI_ACCESSORS(Script, line_offset, kLineOffsetOffset) |
| 5606 | SMI_ACCESSORS(Script, column_offset, kColumnOffsetOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5607 | ACCESSORS(Script, context_data, Object, kContextOffset) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5608 | ACCESSORS(Script, wrapper, HeapObject, kWrapperOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5609 | SMI_ACCESSORS(Script, type, kTypeOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5610 | ACCESSORS(Script, line_ends, Object, kLineEndsOffset) |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 5611 | ACCESSORS(Script, eval_from_shared, Object, kEvalFromSharedOffset) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5612 | SMI_ACCESSORS(Script, eval_from_position, kEvalFromPositionOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5613 | ACCESSORS(Script, shared_function_infos, Object, kSharedFunctionInfosOffset) |
| 5614 | SMI_ACCESSORS(Script, flags, kFlagsOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5615 | ACCESSORS(Script, source_url, Object, kSourceUrlOffset) |
| 5616 | ACCESSORS(Script, source_mapping_url, Object, kSourceMappingUrlOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5617 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5618 | Script::CompilationType Script::compilation_type() { |
| 5619 | return BooleanBit::get(flags(), kCompilationTypeBit) ? |
| 5620 | COMPILATION_TYPE_EVAL : COMPILATION_TYPE_HOST; |
| 5621 | } |
| 5622 | void Script::set_compilation_type(CompilationType type) { |
| 5623 | set_flags(BooleanBit::set(flags(), kCompilationTypeBit, |
| 5624 | type == COMPILATION_TYPE_EVAL)); |
| 5625 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5626 | bool Script::hide_source() { return BooleanBit::get(flags(), kHideSourceBit); } |
| 5627 | void Script::set_hide_source(bool value) { |
| 5628 | set_flags(BooleanBit::set(flags(), kHideSourceBit, value)); |
| 5629 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5630 | Script::CompilationState Script::compilation_state() { |
| 5631 | return BooleanBit::get(flags(), kCompilationStateBit) ? |
| 5632 | COMPILATION_STATE_COMPILED : COMPILATION_STATE_INITIAL; |
| 5633 | } |
| 5634 | void Script::set_compilation_state(CompilationState state) { |
| 5635 | set_flags(BooleanBit::set(flags(), kCompilationStateBit, |
| 5636 | state == COMPILATION_STATE_COMPILED)); |
| 5637 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5638 | ScriptOriginOptions Script::origin_options() { |
| 5639 | return ScriptOriginOptions((flags() & kOriginOptionsMask) >> |
| 5640 | kOriginOptionsShift); |
| 5641 | } |
| 5642 | void Script::set_origin_options(ScriptOriginOptions origin_options) { |
| 5643 | DCHECK(!(origin_options.Flags() & ~((1 << kOriginOptionsSize) - 1))); |
| 5644 | set_flags((flags() & ~kOriginOptionsMask) | |
| 5645 | (origin_options.Flags() << kOriginOptionsShift)); |
| 5646 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5647 | |
| 5648 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5649 | ACCESSORS(DebugInfo, shared, SharedFunctionInfo, kSharedFunctionInfoIndex) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5650 | ACCESSORS(DebugInfo, abstract_code, AbstractCode, kAbstractCodeIndex) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5651 | ACCESSORS(DebugInfo, break_points, FixedArray, kBreakPointsStateIndex) |
| 5652 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5653 | BytecodeArray* DebugInfo::original_bytecode_array() { |
| 5654 | return shared()->bytecode_array(); |
| 5655 | } |
| 5656 | |
| 5657 | SMI_ACCESSORS(BreakPointInfo, code_offset, kCodeOffsetIndex) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5658 | SMI_ACCESSORS(BreakPointInfo, source_position, kSourcePositionIndex) |
| 5659 | SMI_ACCESSORS(BreakPointInfo, statement_position, kStatementPositionIndex) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5660 | ACCESSORS(BreakPointInfo, break_point_objects, Object, kBreakPointObjectsIndex) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5661 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5662 | ACCESSORS(SharedFunctionInfo, name, Object, kNameOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5663 | ACCESSORS(SharedFunctionInfo, optimized_code_map, FixedArray, |
| 5664 | kOptimizedCodeMapOffset) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5665 | ACCESSORS(SharedFunctionInfo, construct_stub, Code, kConstructStubOffset) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5666 | ACCESSORS(SharedFunctionInfo, feedback_metadata, TypeFeedbackMetadata, |
| 5667 | kFeedbackMetadataOffset) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5668 | #if TRACE_MAPS |
| 5669 | SMI_ACCESSORS(SharedFunctionInfo, unique_id, kUniqueIdOffset) |
| 5670 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5671 | ACCESSORS(SharedFunctionInfo, instance_class_name, Object, |
| 5672 | kInstanceClassNameOffset) |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5673 | ACCESSORS(SharedFunctionInfo, function_data, Object, kFunctionDataOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5674 | ACCESSORS(SharedFunctionInfo, script, Object, kScriptOffset) |
| 5675 | ACCESSORS(SharedFunctionInfo, debug_info, Object, kDebugInfoOffset) |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5676 | ACCESSORS(SharedFunctionInfo, function_identifier, Object, |
| 5677 | kFunctionIdentifierOffset) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5678 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5679 | SMI_ACCESSORS(FunctionTemplateInfo, length, kLengthOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5680 | BOOL_ACCESSORS(FunctionTemplateInfo, flag, hidden_prototype, |
| 5681 | kHiddenPrototypeBit) |
| 5682 | BOOL_ACCESSORS(FunctionTemplateInfo, flag, undetectable, kUndetectableBit) |
| 5683 | BOOL_ACCESSORS(FunctionTemplateInfo, flag, needs_access_check, |
| 5684 | kNeedsAccessCheckBit) |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 5685 | BOOL_ACCESSORS(FunctionTemplateInfo, flag, read_only_prototype, |
| 5686 | kReadOnlyPrototypeBit) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5687 | BOOL_ACCESSORS(FunctionTemplateInfo, flag, remove_prototype, |
| 5688 | kRemovePrototypeBit) |
| 5689 | BOOL_ACCESSORS(FunctionTemplateInfo, flag, do_not_cache, |
| 5690 | kDoNotCacheBit) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5691 | BOOL_ACCESSORS(FunctionTemplateInfo, flag, accept_any_receiver, |
| 5692 | kAcceptAnyReceiver) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5693 | BOOL_ACCESSORS(SharedFunctionInfo, start_position_and_type, is_named_expression, |
| 5694 | kIsNamedExpressionBit) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5695 | BOOL_ACCESSORS(SharedFunctionInfo, start_position_and_type, is_toplevel, |
| 5696 | kIsTopLevelBit) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5697 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5698 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, allows_lazy_compilation, |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5699 | kAllowLazyCompilation) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5700 | BOOL_ACCESSORS(SharedFunctionInfo, |
| 5701 | compiler_hints, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5702 | allows_lazy_compilation_without_context, |
| 5703 | kAllowLazyCompilationWithoutContext) |
| 5704 | BOOL_ACCESSORS(SharedFunctionInfo, |
| 5705 | compiler_hints, |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5706 | uses_arguments, |
| 5707 | kUsesArguments) |
| 5708 | BOOL_ACCESSORS(SharedFunctionInfo, |
| 5709 | compiler_hints, |
| 5710 | has_duplicate_parameters, |
| 5711 | kHasDuplicateParameters) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5712 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, asm_function, kIsAsmFunction) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5713 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, deserialized, kDeserialized) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5714 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, never_compiled, |
| 5715 | kNeverCompiled) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5716 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_declaration, |
| 5717 | kIsDeclaration) |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 5718 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5719 | #if V8_HOST_ARCH_32_BIT |
| 5720 | SMI_ACCESSORS(SharedFunctionInfo, length, kLengthOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5721 | SMI_ACCESSORS(SharedFunctionInfo, internal_formal_parameter_count, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5722 | kFormalParameterCountOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5723 | SMI_ACCESSORS(SharedFunctionInfo, expected_nof_properties, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5724 | kExpectedNofPropertiesOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5725 | SMI_ACCESSORS(SharedFunctionInfo, num_literals, kNumLiteralsOffset) |
| 5726 | SMI_ACCESSORS(SharedFunctionInfo, start_position_and_type, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5727 | kStartPositionAndTypeOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5728 | SMI_ACCESSORS(SharedFunctionInfo, end_position, kEndPositionOffset) |
| 5729 | SMI_ACCESSORS(SharedFunctionInfo, function_token_position, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5730 | kFunctionTokenPositionOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5731 | SMI_ACCESSORS(SharedFunctionInfo, compiler_hints, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5732 | kCompilerHintsOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5733 | SMI_ACCESSORS(SharedFunctionInfo, opt_count_and_bailout_reason, |
| 5734 | kOptCountAndBailoutReasonOffset) |
| 5735 | SMI_ACCESSORS(SharedFunctionInfo, counters, kCountersOffset) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5736 | SMI_ACCESSORS(SharedFunctionInfo, ast_node_count, kAstNodeCountOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5737 | SMI_ACCESSORS(SharedFunctionInfo, profiler_ticks, kProfilerTicksOffset) |
| 5738 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5739 | #else |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5740 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5741 | #if V8_TARGET_LITTLE_ENDIAN |
| 5742 | #define PSEUDO_SMI_LO_ALIGN 0 |
| 5743 | #define PSEUDO_SMI_HI_ALIGN kIntSize |
| 5744 | #else |
| 5745 | #define PSEUDO_SMI_LO_ALIGN kIntSize |
| 5746 | #define PSEUDO_SMI_HI_ALIGN 0 |
| 5747 | #endif |
| 5748 | |
| 5749 | #define PSEUDO_SMI_ACCESSORS_LO(holder, name, offset) \ |
| 5750 | STATIC_ASSERT(holder::offset % kPointerSize == PSEUDO_SMI_LO_ALIGN); \ |
| 5751 | int holder::name() const { \ |
| 5752 | int value = READ_INT_FIELD(this, offset); \ |
| 5753 | DCHECK(kHeapObjectTag == 1); \ |
| 5754 | DCHECK((value & kHeapObjectTag) == 0); \ |
| 5755 | return value >> 1; \ |
| 5756 | } \ |
| 5757 | void holder::set_##name(int value) { \ |
| 5758 | DCHECK(kHeapObjectTag == 1); \ |
| 5759 | DCHECK((value & 0xC0000000) == 0xC0000000 || (value & 0xC0000000) == 0x0); \ |
| 5760 | WRITE_INT_FIELD(this, offset, (value << 1) & ~kHeapObjectTag); \ |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5761 | } |
| 5762 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5763 | #define PSEUDO_SMI_ACCESSORS_HI(holder, name, offset) \ |
| 5764 | STATIC_ASSERT(holder::offset % kPointerSize == PSEUDO_SMI_HI_ALIGN); \ |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5765 | INT_ACCESSORS(holder, name, offset) |
| 5766 | |
| 5767 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5768 | PSEUDO_SMI_ACCESSORS_LO(SharedFunctionInfo, length, kLengthOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5769 | PSEUDO_SMI_ACCESSORS_HI(SharedFunctionInfo, internal_formal_parameter_count, |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5770 | kFormalParameterCountOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5771 | |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5772 | PSEUDO_SMI_ACCESSORS_LO(SharedFunctionInfo, |
| 5773 | expected_nof_properties, |
| 5774 | kExpectedNofPropertiesOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5775 | PSEUDO_SMI_ACCESSORS_HI(SharedFunctionInfo, num_literals, kNumLiteralsOffset) |
| 5776 | |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5777 | PSEUDO_SMI_ACCESSORS_LO(SharedFunctionInfo, end_position, kEndPositionOffset) |
| 5778 | PSEUDO_SMI_ACCESSORS_HI(SharedFunctionInfo, |
| 5779 | start_position_and_type, |
| 5780 | kStartPositionAndTypeOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5781 | |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5782 | PSEUDO_SMI_ACCESSORS_LO(SharedFunctionInfo, |
| 5783 | function_token_position, |
| 5784 | kFunctionTokenPositionOffset) |
| 5785 | PSEUDO_SMI_ACCESSORS_HI(SharedFunctionInfo, |
| 5786 | compiler_hints, |
| 5787 | kCompilerHintsOffset) |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5788 | |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5789 | PSEUDO_SMI_ACCESSORS_LO(SharedFunctionInfo, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5790 | opt_count_and_bailout_reason, |
| 5791 | kOptCountAndBailoutReasonOffset) |
| 5792 | PSEUDO_SMI_ACCESSORS_HI(SharedFunctionInfo, counters, kCountersOffset) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5793 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5794 | PSEUDO_SMI_ACCESSORS_LO(SharedFunctionInfo, |
| 5795 | ast_node_count, |
| 5796 | kAstNodeCountOffset) |
| 5797 | PSEUDO_SMI_ACCESSORS_HI(SharedFunctionInfo, |
| 5798 | profiler_ticks, |
| 5799 | kProfilerTicksOffset) |
| 5800 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 5801 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5802 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 5803 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5804 | BOOL_GETTER(SharedFunctionInfo, |
| 5805 | compiler_hints, |
| 5806 | optimization_disabled, |
| 5807 | kOptimizationDisabled) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5808 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5809 | AbstractCode* SharedFunctionInfo::abstract_code() { |
| 5810 | if (HasBytecodeArray()) { |
| 5811 | return AbstractCode::cast(bytecode_array()); |
| 5812 | } else { |
| 5813 | return AbstractCode::cast(code()); |
| 5814 | } |
| 5815 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5816 | |
| 5817 | void SharedFunctionInfo::set_optimization_disabled(bool disable) { |
| 5818 | set_compiler_hints(BooleanBit::set(compiler_hints(), |
| 5819 | kOptimizationDisabled, |
| 5820 | disable)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5821 | } |
| 5822 | |
| 5823 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5824 | LanguageMode SharedFunctionInfo::language_mode() { |
| 5825 | STATIC_ASSERT(LANGUAGE_END == 3); |
| 5826 | return construct_language_mode( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5827 | BooleanBit::get(compiler_hints(), kStrictModeFunction)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5828 | } |
| 5829 | |
| 5830 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5831 | void SharedFunctionInfo::set_language_mode(LanguageMode language_mode) { |
| 5832 | STATIC_ASSERT(LANGUAGE_END == 3); |
| 5833 | // We only allow language mode transitions that set the same language mode |
| 5834 | // again or go up in the chain: |
| 5835 | DCHECK(is_sloppy(this->language_mode()) || is_strict(language_mode)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5836 | int hints = compiler_hints(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5837 | hints = BooleanBit::set(hints, kStrictModeFunction, is_strict(language_mode)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5838 | set_compiler_hints(hints); |
| 5839 | } |
| 5840 | |
| 5841 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5842 | FunctionKind SharedFunctionInfo::kind() { |
| 5843 | return FunctionKindBits::decode(compiler_hints()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5844 | } |
| 5845 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5846 | |
| 5847 | void SharedFunctionInfo::set_kind(FunctionKind kind) { |
| 5848 | DCHECK(IsValidFunctionKind(kind)); |
| 5849 | int hints = compiler_hints(); |
| 5850 | hints = FunctionKindBits::update(hints, kind); |
| 5851 | set_compiler_hints(hints); |
| 5852 | } |
| 5853 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5854 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, needs_home_object, |
| 5855 | kNeedsHomeObject) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5856 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, native, kNative) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5857 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, force_inline, kForceInline) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5858 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, |
| 5859 | name_should_print_as_anonymous, |
| 5860 | kNameShouldPrintAsAnonymous) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5861 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_anonymous_expression, |
| 5862 | kIsAnonymousExpression) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5863 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_function, kIsFunction) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5864 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, dont_crankshaft, |
| 5865 | kDontCrankshaft) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5866 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, dont_flush, kDontFlush) |
| 5867 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_arrow, kIsArrow) |
| 5868 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_generator, kIsGenerator) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5869 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_async, kIsAsyncFunction) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5870 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_concise_method, |
| 5871 | kIsConciseMethod) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5872 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_getter_function, |
| 5873 | kIsGetterFunction) |
| 5874 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_setter_function, |
| 5875 | kIsSetterFunction) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5876 | BOOL_ACCESSORS(SharedFunctionInfo, compiler_hints, is_default_constructor, |
| 5877 | kIsDefaultConstructor) |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5878 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5879 | inline bool SharedFunctionInfo::is_resumable() const { |
| 5880 | return is_generator() || is_async(); |
| 5881 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5882 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5883 | bool Script::HasValidSource() { |
| 5884 | Object* src = this->source(); |
| 5885 | if (!src->IsString()) return true; |
| 5886 | String* src_str = String::cast(src); |
| 5887 | if (!StringShape(src_str).IsExternal()) return true; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5888 | if (src_str->IsOneByteRepresentation()) { |
| 5889 | return ExternalOneByteString::cast(src)->resource() != NULL; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 5890 | } else if (src_str->IsTwoByteRepresentation()) { |
| 5891 | return ExternalTwoByteString::cast(src)->resource() != NULL; |
| 5892 | } |
| 5893 | return true; |
| 5894 | } |
| 5895 | |
| 5896 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5897 | void SharedFunctionInfo::DontAdaptArguments() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5898 | DCHECK(code()->kind() == Code::BUILTIN || code()->kind() == Code::STUB); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5899 | set_internal_formal_parameter_count(kDontAdaptArgumentsSentinel); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5900 | } |
| 5901 | |
| 5902 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5903 | int SharedFunctionInfo::start_position() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5904 | return start_position_and_type() >> kStartPositionShift; |
| 5905 | } |
| 5906 | |
| 5907 | |
| 5908 | void SharedFunctionInfo::set_start_position(int start_position) { |
| 5909 | set_start_position_and_type((start_position << kStartPositionShift) |
| 5910 | | (start_position_and_type() & ~kStartPositionMask)); |
| 5911 | } |
| 5912 | |
| 5913 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5914 | Code* SharedFunctionInfo::code() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5915 | return Code::cast(READ_FIELD(this, kCodeOffset)); |
| 5916 | } |
| 5917 | |
| 5918 | |
| 5919 | void SharedFunctionInfo::set_code(Code* value, WriteBarrierMode mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5920 | DCHECK(value->kind() != Code::OPTIMIZED_FUNCTION); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5921 | WRITE_FIELD(this, kCodeOffset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5922 | CONDITIONAL_WRITE_BARRIER(value->GetHeap(), this, kCodeOffset, value, mode); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5923 | } |
| 5924 | |
| 5925 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5926 | void SharedFunctionInfo::ReplaceCode(Code* value) { |
| 5927 | // If the GC metadata field is already used then the function was |
| 5928 | // enqueued as a code flushing candidate and we remove it now. |
| 5929 | if (code()->gc_metadata() != NULL) { |
| 5930 | CodeFlusher* flusher = GetHeap()->mark_compact_collector()->code_flusher(); |
| 5931 | flusher->EvictCandidate(this); |
| 5932 | } |
| 5933 | |
| 5934 | DCHECK(code()->gc_metadata() == NULL && value->gc_metadata() == NULL); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5935 | #ifdef DEBUG |
| 5936 | Code::VerifyRecompiledCode(code(), value); |
| 5937 | #endif // DEBUG |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5938 | |
| 5939 | set_code(value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5940 | |
| 5941 | if (is_compiled()) set_never_compiled(false); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5942 | } |
| 5943 | |
| 5944 | |
| 5945 | ScopeInfo* SharedFunctionInfo::scope_info() const { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5946 | return reinterpret_cast<ScopeInfo*>(READ_FIELD(this, kScopeInfoOffset)); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 5947 | } |
| 5948 | |
| 5949 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5950 | void SharedFunctionInfo::set_scope_info(ScopeInfo* value, |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 5951 | WriteBarrierMode mode) { |
| 5952 | WRITE_FIELD(this, kScopeInfoOffset, reinterpret_cast<Object*>(value)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5953 | CONDITIONAL_WRITE_BARRIER(GetHeap(), |
| 5954 | this, |
| 5955 | kScopeInfoOffset, |
| 5956 | reinterpret_cast<Object*>(value), |
| 5957 | mode); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 5958 | } |
| 5959 | |
| 5960 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5961 | bool SharedFunctionInfo::is_compiled() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5962 | Builtins* builtins = GetIsolate()->builtins(); |
| 5963 | DCHECK(code() != builtins->builtin(Builtins::kCompileOptimizedConcurrent)); |
| 5964 | DCHECK(code() != builtins->builtin(Builtins::kCompileOptimized)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5965 | DCHECK(code() != builtins->builtin(Builtins::kCompileBaseline)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5966 | return code() != builtins->builtin(Builtins::kCompileLazy); |
| 5967 | } |
| 5968 | |
| 5969 | |
| 5970 | bool SharedFunctionInfo::has_simple_parameters() { |
| 5971 | return scope_info()->HasSimpleParameters(); |
| 5972 | } |
| 5973 | |
| 5974 | |
| 5975 | bool SharedFunctionInfo::HasDebugInfo() { |
| 5976 | bool has_debug_info = debug_info()->IsStruct(); |
| 5977 | DCHECK(!has_debug_info || HasDebugCode()); |
| 5978 | return has_debug_info; |
| 5979 | } |
| 5980 | |
| 5981 | |
| 5982 | DebugInfo* SharedFunctionInfo::GetDebugInfo() { |
| 5983 | DCHECK(HasDebugInfo()); |
| 5984 | return DebugInfo::cast(debug_info()); |
| 5985 | } |
| 5986 | |
| 5987 | |
| 5988 | bool SharedFunctionInfo::HasDebugCode() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5989 | return HasBytecodeArray() || |
| 5990 | (code()->kind() == Code::FUNCTION && code()->has_debug_break_slots()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5991 | } |
| 5992 | |
| 5993 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5994 | bool SharedFunctionInfo::IsApiFunction() { |
| 5995 | return function_data()->IsFunctionTemplateInfo(); |
| 5996 | } |
| 5997 | |
| 5998 | |
| 5999 | FunctionTemplateInfo* SharedFunctionInfo::get_api_func_data() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6000 | DCHECK(IsApiFunction()); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 6001 | return FunctionTemplateInfo::cast(function_data()); |
| 6002 | } |
| 6003 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6004 | void SharedFunctionInfo::set_api_func_data(FunctionTemplateInfo* data) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6005 | DCHECK(function_data()->IsUndefined(GetIsolate())); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6006 | set_function_data(data); |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 6007 | } |
| 6008 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6009 | bool SharedFunctionInfo::HasBytecodeArray() { |
| 6010 | return function_data()->IsBytecodeArray(); |
| 6011 | } |
| 6012 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6013 | BytecodeArray* SharedFunctionInfo::bytecode_array() { |
| 6014 | DCHECK(HasBytecodeArray()); |
| 6015 | return BytecodeArray::cast(function_data()); |
| 6016 | } |
| 6017 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6018 | void SharedFunctionInfo::set_bytecode_array(BytecodeArray* bytecode) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6019 | DCHECK(function_data()->IsUndefined(GetIsolate())); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6020 | set_function_data(bytecode); |
| 6021 | } |
| 6022 | |
| 6023 | void SharedFunctionInfo::ClearBytecodeArray() { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6024 | DCHECK(function_data()->IsUndefined(GetIsolate()) || HasBytecodeArray()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6025 | set_function_data(GetHeap()->undefined_value()); |
| 6026 | } |
| 6027 | |
| 6028 | bool SharedFunctionInfo::HasBuiltinFunctionId() { |
| 6029 | return function_identifier()->IsSmi(); |
| 6030 | } |
| 6031 | |
| 6032 | BuiltinFunctionId SharedFunctionInfo::builtin_function_id() { |
| 6033 | DCHECK(HasBuiltinFunctionId()); |
| 6034 | return static_cast<BuiltinFunctionId>( |
| 6035 | Smi::cast(function_identifier())->value()); |
| 6036 | } |
| 6037 | |
| 6038 | void SharedFunctionInfo::set_builtin_function_id(BuiltinFunctionId id) { |
| 6039 | set_function_identifier(Smi::FromInt(id)); |
| 6040 | } |
| 6041 | |
| 6042 | bool SharedFunctionInfo::HasInferredName() { |
| 6043 | return function_identifier()->IsString(); |
| 6044 | } |
| 6045 | |
| 6046 | String* SharedFunctionInfo::inferred_name() { |
| 6047 | if (HasInferredName()) { |
| 6048 | return String::cast(function_identifier()); |
| 6049 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6050 | Isolate* isolate = GetIsolate(); |
| 6051 | DCHECK(function_identifier()->IsUndefined(isolate) || HasBuiltinFunctionId()); |
| 6052 | return isolate->heap()->empty_string(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6053 | } |
| 6054 | |
| 6055 | void SharedFunctionInfo::set_inferred_name(String* inferred_name) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6056 | DCHECK(function_identifier()->IsUndefined(GetIsolate()) || HasInferredName()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6057 | set_function_identifier(inferred_name); |
| 6058 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6059 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6060 | int SharedFunctionInfo::ic_age() { |
| 6061 | return ICAgeBits::decode(counters()); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 6062 | } |
| 6063 | |
| 6064 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6065 | void SharedFunctionInfo::set_ic_age(int ic_age) { |
| 6066 | set_counters(ICAgeBits::update(counters(), ic_age)); |
| 6067 | } |
| 6068 | |
| 6069 | |
| 6070 | int SharedFunctionInfo::deopt_count() { |
| 6071 | return DeoptCountBits::decode(counters()); |
| 6072 | } |
| 6073 | |
| 6074 | |
| 6075 | void SharedFunctionInfo::set_deopt_count(int deopt_count) { |
| 6076 | set_counters(DeoptCountBits::update(counters(), deopt_count)); |
| 6077 | } |
| 6078 | |
| 6079 | |
| 6080 | void SharedFunctionInfo::increment_deopt_count() { |
| 6081 | int value = counters(); |
| 6082 | int deopt_count = DeoptCountBits::decode(value); |
| 6083 | deopt_count = (deopt_count + 1) & DeoptCountBits::kMax; |
| 6084 | set_counters(DeoptCountBits::update(value, deopt_count)); |
| 6085 | } |
| 6086 | |
| 6087 | |
| 6088 | int SharedFunctionInfo::opt_reenable_tries() { |
| 6089 | return OptReenableTriesBits::decode(counters()); |
| 6090 | } |
| 6091 | |
| 6092 | |
| 6093 | void SharedFunctionInfo::set_opt_reenable_tries(int tries) { |
| 6094 | set_counters(OptReenableTriesBits::update(counters(), tries)); |
| 6095 | } |
| 6096 | |
| 6097 | |
| 6098 | int SharedFunctionInfo::opt_count() { |
| 6099 | return OptCountBits::decode(opt_count_and_bailout_reason()); |
| 6100 | } |
| 6101 | |
| 6102 | |
| 6103 | void SharedFunctionInfo::set_opt_count(int opt_count) { |
| 6104 | set_opt_count_and_bailout_reason( |
| 6105 | OptCountBits::update(opt_count_and_bailout_reason(), opt_count)); |
| 6106 | } |
| 6107 | |
| 6108 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6109 | BailoutReason SharedFunctionInfo::disable_optimization_reason() { |
| 6110 | return static_cast<BailoutReason>( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6111 | DisabledOptimizationReasonBits::decode(opt_count_and_bailout_reason())); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 6112 | } |
| 6113 | |
| 6114 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6115 | bool SharedFunctionInfo::has_deoptimization_support() { |
| 6116 | Code* code = this->code(); |
| 6117 | return code->kind() == Code::FUNCTION && code->has_deoptimization_support(); |
| 6118 | } |
| 6119 | |
| 6120 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6121 | void SharedFunctionInfo::TryReenableOptimization() { |
| 6122 | int tries = opt_reenable_tries(); |
| 6123 | set_opt_reenable_tries((tries + 1) & OptReenableTriesBits::kMax); |
| 6124 | // We reenable optimization whenever the number of tries is a large |
| 6125 | // enough power of 2. |
| 6126 | if (tries >= 16 && (((tries - 1) & tries) == 0)) { |
| 6127 | set_optimization_disabled(false); |
| 6128 | set_opt_count(0); |
| 6129 | set_deopt_count(0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6130 | } |
| 6131 | } |
| 6132 | |
| 6133 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6134 | void SharedFunctionInfo::set_disable_optimization_reason(BailoutReason reason) { |
| 6135 | set_opt_count_and_bailout_reason(DisabledOptimizationReasonBits::update( |
| 6136 | opt_count_and_bailout_reason(), reason)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6137 | } |
| 6138 | |
| 6139 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6140 | bool SharedFunctionInfo::IsBuiltin() { |
| 6141 | Object* script_obj = script(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6142 | if (script_obj->IsUndefined(GetIsolate())) return true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6143 | Script* script = Script::cast(script_obj); |
| 6144 | Script::Type type = static_cast<Script::Type>(script->type()); |
| 6145 | return type != Script::TYPE_NORMAL; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6146 | } |
| 6147 | |
| 6148 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6149 | bool SharedFunctionInfo::IsSubjectToDebugging() { return !IsBuiltin(); } |
| 6150 | |
| 6151 | |
| 6152 | bool SharedFunctionInfo::OptimizedCodeMapIsCleared() const { |
| 6153 | return optimized_code_map() == GetHeap()->cleared_optimized_code_map(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6154 | } |
| 6155 | |
| 6156 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6157 | bool JSFunction::IsOptimized() { |
| 6158 | return code()->kind() == Code::OPTIMIZED_FUNCTION; |
| 6159 | } |
| 6160 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6161 | bool JSFunction::IsMarkedForBaseline() { |
| 6162 | return code() == |
| 6163 | GetIsolate()->builtins()->builtin(Builtins::kCompileBaseline); |
| 6164 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6165 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6166 | bool JSFunction::IsMarkedForOptimization() { |
| 6167 | return code() == GetIsolate()->builtins()->builtin( |
| 6168 | Builtins::kCompileOptimized); |
| 6169 | } |
| 6170 | |
| 6171 | |
| 6172 | bool JSFunction::IsMarkedForConcurrentOptimization() { |
| 6173 | return code() == GetIsolate()->builtins()->builtin( |
| 6174 | Builtins::kCompileOptimizedConcurrent); |
| 6175 | } |
| 6176 | |
| 6177 | |
| 6178 | bool JSFunction::IsInOptimizationQueue() { |
| 6179 | return code() == GetIsolate()->builtins()->builtin( |
| 6180 | Builtins::kInOptimizationQueue); |
| 6181 | } |
| 6182 | |
| 6183 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6184 | void JSFunction::CompleteInobjectSlackTrackingIfActive() { |
| 6185 | if (has_initial_map() && initial_map()->IsInobjectSlackTrackingInProgress()) { |
| 6186 | initial_map()->CompleteInobjectSlackTracking(); |
| 6187 | } |
| 6188 | } |
| 6189 | |
| 6190 | |
| 6191 | bool Map::IsInobjectSlackTrackingInProgress() { |
| 6192 | return construction_counter() != Map::kNoSlackTracking; |
| 6193 | } |
| 6194 | |
| 6195 | |
| 6196 | void Map::InobjectSlackTrackingStep() { |
| 6197 | if (!IsInobjectSlackTrackingInProgress()) return; |
| 6198 | int counter = construction_counter(); |
| 6199 | set_construction_counter(counter - 1); |
| 6200 | if (counter == kSlackTrackingCounterEnd) { |
| 6201 | CompleteInobjectSlackTracking(); |
| 6202 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6203 | } |
| 6204 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6205 | AbstractCode* JSFunction::abstract_code() { |
| 6206 | Code* code = this->code(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6207 | if (code->is_interpreter_trampoline_builtin()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6208 | return AbstractCode::cast(shared()->bytecode_array()); |
| 6209 | } else { |
| 6210 | return AbstractCode::cast(code); |
| 6211 | } |
| 6212 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6213 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6214 | Code* JSFunction::code() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6215 | return Code::cast( |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 6216 | Code::GetObjectFromEntryAddress(FIELD_ADDR(this, kCodeEntryOffset))); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6217 | } |
| 6218 | |
| 6219 | |
| 6220 | void JSFunction::set_code(Code* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6221 | DCHECK(!GetHeap()->InNewSpace(value)); |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 6222 | Address entry = value->entry(); |
| 6223 | WRITE_INTPTR_FIELD(this, kCodeEntryOffset, reinterpret_cast<intptr_t>(entry)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6224 | GetHeap()->incremental_marking()->RecordWriteOfCodeEntry( |
| 6225 | this, |
| 6226 | HeapObject::RawField(this, kCodeEntryOffset), |
| 6227 | value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6228 | } |
| 6229 | |
| 6230 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6231 | void JSFunction::set_code_no_write_barrier(Code* value) { |
| 6232 | DCHECK(!GetHeap()->InNewSpace(value)); |
| 6233 | Address entry = value->entry(); |
| 6234 | WRITE_INTPTR_FIELD(this, kCodeEntryOffset, reinterpret_cast<intptr_t>(entry)); |
| 6235 | } |
| 6236 | |
| 6237 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6238 | void JSFunction::ReplaceCode(Code* code) { |
| 6239 | bool was_optimized = IsOptimized(); |
| 6240 | bool is_optimized = code->kind() == Code::OPTIMIZED_FUNCTION; |
| 6241 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6242 | if (was_optimized && is_optimized) { |
| 6243 | shared()->EvictFromOptimizedCodeMap(this->code(), |
| 6244 | "Replacing with another optimized code"); |
| 6245 | } |
| 6246 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6247 | set_code(code); |
| 6248 | |
| 6249 | // Add/remove the function from the list of optimized functions for this |
| 6250 | // context based on the state change. |
| 6251 | if (!was_optimized && is_optimized) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6252 | context()->native_context()->AddOptimizedFunction(this); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6253 | } |
| 6254 | if (was_optimized && !is_optimized) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6255 | // TODO(titzer): linear in the number of optimized functions; fix! |
| 6256 | context()->native_context()->RemoveOptimizedFunction(this); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6257 | } |
| 6258 | } |
| 6259 | |
| 6260 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6261 | Context* JSFunction::context() { |
| 6262 | return Context::cast(READ_FIELD(this, kContextOffset)); |
| 6263 | } |
| 6264 | |
| 6265 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6266 | JSObject* JSFunction::global_proxy() { |
| 6267 | return context()->global_proxy(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 6268 | } |
| 6269 | |
| 6270 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6271 | Context* JSFunction::native_context() { return context()->native_context(); } |
| 6272 | |
| 6273 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6274 | void JSFunction::set_context(Object* value) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6275 | DCHECK(value->IsUndefined(GetIsolate()) || value->IsContext()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6276 | WRITE_FIELD(this, kContextOffset, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6277 | WRITE_BARRIER(GetHeap(), this, kContextOffset, value); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6278 | } |
| 6279 | |
| 6280 | ACCESSORS(JSFunction, prototype_or_initial_map, Object, |
| 6281 | kPrototypeOrInitialMapOffset) |
| 6282 | |
| 6283 | |
| 6284 | Map* JSFunction::initial_map() { |
| 6285 | return Map::cast(prototype_or_initial_map()); |
| 6286 | } |
| 6287 | |
| 6288 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6289 | bool JSFunction::has_initial_map() { |
| 6290 | return prototype_or_initial_map()->IsMap(); |
| 6291 | } |
| 6292 | |
| 6293 | |
| 6294 | bool JSFunction::has_instance_prototype() { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6295 | return has_initial_map() || |
| 6296 | !prototype_or_initial_map()->IsTheHole(GetIsolate()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6297 | } |
| 6298 | |
| 6299 | |
| 6300 | bool JSFunction::has_prototype() { |
| 6301 | return map()->has_non_instance_prototype() || has_instance_prototype(); |
| 6302 | } |
| 6303 | |
| 6304 | |
| 6305 | Object* JSFunction::instance_prototype() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6306 | DCHECK(has_instance_prototype()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6307 | if (has_initial_map()) return initial_map()->prototype(); |
| 6308 | // When there is no initial map and the prototype is a JSObject, the |
| 6309 | // initial map field is used for the prototype field. |
| 6310 | return prototype_or_initial_map(); |
| 6311 | } |
| 6312 | |
| 6313 | |
| 6314 | Object* JSFunction::prototype() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6315 | DCHECK(has_prototype()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6316 | // If the function's prototype property has been set to a non-JSObject |
| 6317 | // value, that value is stored in the constructor field of the map. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6318 | if (map()->has_non_instance_prototype()) { |
| 6319 | Object* prototype = map()->GetConstructor(); |
| 6320 | // The map must have a prototype in that field, not a back pointer. |
| 6321 | DCHECK(!prototype->IsMap()); |
| 6322 | return prototype; |
| 6323 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6324 | return instance_prototype(); |
| 6325 | } |
| 6326 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6327 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6328 | bool JSFunction::is_compiled() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6329 | Builtins* builtins = GetIsolate()->builtins(); |
| 6330 | return code() != builtins->builtin(Builtins::kCompileLazy) && |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6331 | code() != builtins->builtin(Builtins::kCompileBaseline) && |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6332 | code() != builtins->builtin(Builtins::kCompileOptimized) && |
| 6333 | code() != builtins->builtin(Builtins::kCompileOptimizedConcurrent); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6334 | } |
| 6335 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6336 | TypeFeedbackVector* JSFunction::feedback_vector() { |
| 6337 | LiteralsArray* array = literals(); |
| 6338 | return array->feedback_vector(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6339 | } |
| 6340 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6341 | ACCESSORS(JSProxy, target, JSReceiver, kTargetOffset) |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6342 | ACCESSORS(JSProxy, handler, Object, kHandlerOffset) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6343 | ACCESSORS(JSProxy, hash, Object, kHashOffset) |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 6344 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6345 | bool JSProxy::IsRevoked() const { return !handler()->IsJSReceiver(); } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 6346 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6347 | ACCESSORS(JSCollection, table, Object, kTableOffset) |
| 6348 | |
| 6349 | |
| 6350 | #define ORDERED_HASH_TABLE_ITERATOR_ACCESSORS(name, type, offset) \ |
| 6351 | template<class Derived, class TableType> \ |
| 6352 | type* OrderedHashTableIterator<Derived, TableType>::name() const { \ |
| 6353 | return type::cast(READ_FIELD(this, offset)); \ |
| 6354 | } \ |
| 6355 | template<class Derived, class TableType> \ |
| 6356 | void OrderedHashTableIterator<Derived, TableType>::set_##name( \ |
| 6357 | type* value, WriteBarrierMode mode) { \ |
| 6358 | WRITE_FIELD(this, offset, value); \ |
| 6359 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, value, mode); \ |
| 6360 | } |
| 6361 | |
| 6362 | ORDERED_HASH_TABLE_ITERATOR_ACCESSORS(table, Object, kTableOffset) |
| 6363 | ORDERED_HASH_TABLE_ITERATOR_ACCESSORS(index, Object, kIndexOffset) |
| 6364 | ORDERED_HASH_TABLE_ITERATOR_ACCESSORS(kind, Object, kKindOffset) |
| 6365 | |
| 6366 | #undef ORDERED_HASH_TABLE_ITERATOR_ACCESSORS |
| 6367 | |
| 6368 | |
| 6369 | ACCESSORS(JSWeakCollection, table, Object, kTableOffset) |
| 6370 | ACCESSORS(JSWeakCollection, next, Object, kNextOffset) |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 6371 | |
| 6372 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6373 | Address Foreign::foreign_address() { |
| 6374 | return AddressFrom<Address>(READ_INTPTR_FIELD(this, kForeignAddressOffset)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 6375 | } |
| 6376 | |
| 6377 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6378 | void Foreign::set_foreign_address(Address value) { |
| 6379 | WRITE_INTPTR_FIELD(this, kForeignAddressOffset, OffsetFrom(value)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6380 | } |
| 6381 | |
| 6382 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6383 | ACCESSORS(JSGeneratorObject, function, JSFunction, kFunctionOffset) |
| 6384 | ACCESSORS(JSGeneratorObject, context, Context, kContextOffset) |
| 6385 | ACCESSORS(JSGeneratorObject, receiver, Object, kReceiverOffset) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6386 | ACCESSORS(JSGeneratorObject, input_or_debug_pos, Object, kInputOrDebugPosOffset) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6387 | SMI_ACCESSORS(JSGeneratorObject, resume_mode, kResumeModeOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6388 | SMI_ACCESSORS(JSGeneratorObject, continuation, kContinuationOffset) |
| 6389 | ACCESSORS(JSGeneratorObject, operand_stack, FixedArray, kOperandStackOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6390 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6391 | bool JSGeneratorObject::is_suspended() const { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6392 | DCHECK_LT(kGeneratorExecuting, 0); |
| 6393 | DCHECK_LT(kGeneratorClosed, 0); |
| 6394 | return continuation() >= 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6395 | } |
| 6396 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6397 | bool JSGeneratorObject::is_closed() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6398 | return continuation() == kGeneratorClosed; |
| 6399 | } |
| 6400 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6401 | bool JSGeneratorObject::is_executing() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6402 | return continuation() == kGeneratorExecuting; |
| 6403 | } |
| 6404 | |
| 6405 | ACCESSORS(JSModule, context, Object, kContextOffset) |
| 6406 | ACCESSORS(JSModule, scope_info, ScopeInfo, kScopeInfoOffset) |
| 6407 | |
| 6408 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6409 | ACCESSORS(JSValue, value, Object, kValueOffset) |
| 6410 | |
| 6411 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6412 | HeapNumber* HeapNumber::cast(Object* object) { |
| 6413 | SLOW_DCHECK(object->IsHeapNumber() || object->IsMutableHeapNumber()); |
| 6414 | return reinterpret_cast<HeapNumber*>(object); |
| 6415 | } |
| 6416 | |
| 6417 | |
| 6418 | const HeapNumber* HeapNumber::cast(const Object* object) { |
| 6419 | SLOW_DCHECK(object->IsHeapNumber() || object->IsMutableHeapNumber()); |
| 6420 | return reinterpret_cast<const HeapNumber*>(object); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6421 | } |
| 6422 | |
| 6423 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6424 | ACCESSORS(JSDate, value, Object, kValueOffset) |
| 6425 | ACCESSORS(JSDate, cache_stamp, Object, kCacheStampOffset) |
| 6426 | ACCESSORS(JSDate, year, Object, kYearOffset) |
| 6427 | ACCESSORS(JSDate, month, Object, kMonthOffset) |
| 6428 | ACCESSORS(JSDate, day, Object, kDayOffset) |
| 6429 | ACCESSORS(JSDate, weekday, Object, kWeekdayOffset) |
| 6430 | ACCESSORS(JSDate, hour, Object, kHourOffset) |
| 6431 | ACCESSORS(JSDate, min, Object, kMinOffset) |
| 6432 | ACCESSORS(JSDate, sec, Object, kSecOffset) |
| 6433 | |
| 6434 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6435 | SMI_ACCESSORS(JSMessageObject, type, kTypeOffset) |
| 6436 | ACCESSORS(JSMessageObject, argument, Object, kArgumentsOffset) |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 6437 | ACCESSORS(JSMessageObject, script, Object, kScriptOffset) |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 6438 | ACCESSORS(JSMessageObject, stack_frames, Object, kStackFramesOffset) |
| 6439 | SMI_ACCESSORS(JSMessageObject, start_position, kStartPositionOffset) |
| 6440 | SMI_ACCESSORS(JSMessageObject, end_position, kEndPositionOffset) |
| 6441 | |
| 6442 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6443 | INT_ACCESSORS(Code, instruction_size, kInstructionSizeOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6444 | INT_ACCESSORS(Code, prologue_offset, kPrologueOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6445 | INT_ACCESSORS(Code, constant_pool_offset, kConstantPoolOffset) |
Leon Clarke | ac95265 | 2010-07-15 11:15:24 +0100 | [diff] [blame] | 6446 | ACCESSORS(Code, relocation_info, ByteArray, kRelocationInfoOffset) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6447 | ACCESSORS(Code, handler_table, FixedArray, kHandlerTableOffset) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 6448 | ACCESSORS(Code, deoptimization_data, FixedArray, kDeoptimizationDataOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6449 | ACCESSORS(Code, raw_type_feedback_info, Object, kTypeFeedbackInfoOffset) |
| 6450 | ACCESSORS(Code, next_code_link, Object, kNextCodeLinkOffset) |
| 6451 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6452 | void Code::WipeOutHeader() { |
| 6453 | WRITE_FIELD(this, kRelocationInfoOffset, NULL); |
| 6454 | WRITE_FIELD(this, kHandlerTableOffset, NULL); |
| 6455 | WRITE_FIELD(this, kDeoptimizationDataOffset, NULL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6456 | // Do not wipe out major/minor keys on a code stub or IC |
| 6457 | if (!READ_FIELD(this, kTypeFeedbackInfoOffset)->IsSmi()) { |
| 6458 | WRITE_FIELD(this, kTypeFeedbackInfoOffset, NULL); |
| 6459 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6460 | WRITE_FIELD(this, kNextCodeLinkOffset, NULL); |
| 6461 | WRITE_FIELD(this, kGCMetadataOffset, NULL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6462 | } |
| 6463 | |
| 6464 | |
| 6465 | Object* Code::type_feedback_info() { |
| 6466 | DCHECK(kind() == FUNCTION); |
| 6467 | return raw_type_feedback_info(); |
| 6468 | } |
| 6469 | |
| 6470 | |
| 6471 | void Code::set_type_feedback_info(Object* value, WriteBarrierMode mode) { |
| 6472 | DCHECK(kind() == FUNCTION); |
| 6473 | set_raw_type_feedback_info(value, mode); |
| 6474 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kTypeFeedbackInfoOffset, |
| 6475 | value, mode); |
| 6476 | } |
| 6477 | |
| 6478 | |
| 6479 | uint32_t Code::stub_key() { |
| 6480 | DCHECK(IsCodeStubOrIC()); |
| 6481 | Smi* smi_key = Smi::cast(raw_type_feedback_info()); |
| 6482 | return static_cast<uint32_t>(smi_key->value()); |
| 6483 | } |
| 6484 | |
| 6485 | |
| 6486 | void Code::set_stub_key(uint32_t key) { |
| 6487 | DCHECK(IsCodeStubOrIC()); |
| 6488 | set_raw_type_feedback_info(Smi::FromInt(key)); |
| 6489 | } |
| 6490 | |
| 6491 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6492 | ACCESSORS(Code, gc_metadata, Object, kGCMetadataOffset) |
| 6493 | INT_ACCESSORS(Code, ic_age, kICAgeOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6494 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6495 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6496 | byte* Code::instruction_start() { |
| 6497 | return FIELD_ADDR(this, kHeaderSize); |
| 6498 | } |
| 6499 | |
| 6500 | |
Leon Clarke | ac95265 | 2010-07-15 11:15:24 +0100 | [diff] [blame] | 6501 | byte* Code::instruction_end() { |
| 6502 | return instruction_start() + instruction_size(); |
| 6503 | } |
| 6504 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6505 | int Code::GetUnwindingInfoSizeOffset() const { |
| 6506 | DCHECK(has_unwinding_info()); |
| 6507 | return RoundUp(kHeaderSize + instruction_size(), kInt64Size); |
Leon Clarke | ac95265 | 2010-07-15 11:15:24 +0100 | [diff] [blame] | 6508 | } |
| 6509 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6510 | int Code::unwinding_info_size() const { |
| 6511 | DCHECK(has_unwinding_info()); |
| 6512 | return static_cast<int>( |
| 6513 | READ_UINT64_FIELD(this, GetUnwindingInfoSizeOffset())); |
| 6514 | } |
| 6515 | |
| 6516 | void Code::set_unwinding_info_size(int value) { |
| 6517 | DCHECK(has_unwinding_info()); |
| 6518 | WRITE_UINT64_FIELD(this, GetUnwindingInfoSizeOffset(), value); |
| 6519 | } |
| 6520 | |
| 6521 | byte* Code::unwinding_info_start() { |
| 6522 | DCHECK(has_unwinding_info()); |
| 6523 | return FIELD_ADDR(this, GetUnwindingInfoSizeOffset()) + kInt64Size; |
| 6524 | } |
| 6525 | |
| 6526 | byte* Code::unwinding_info_end() { |
| 6527 | DCHECK(has_unwinding_info()); |
| 6528 | return unwinding_info_start() + unwinding_info_size(); |
| 6529 | } |
| 6530 | |
| 6531 | int Code::body_size() { |
| 6532 | int unpadded_body_size = |
| 6533 | has_unwinding_info() |
| 6534 | ? static_cast<int>(unwinding_info_end() - instruction_start()) |
| 6535 | : instruction_size(); |
| 6536 | return RoundUp(unpadded_body_size, kObjectAlignment); |
| 6537 | } |
| 6538 | |
| 6539 | int Code::SizeIncludingMetadata() { |
| 6540 | int size = CodeSize(); |
| 6541 | size += relocation_info()->Size(); |
| 6542 | size += deoptimization_data()->Size(); |
| 6543 | size += handler_table()->Size(); |
| 6544 | return size; |
| 6545 | } |
Leon Clarke | ac95265 | 2010-07-15 11:15:24 +0100 | [diff] [blame] | 6546 | |
| 6547 | ByteArray* Code::unchecked_relocation_info() { |
| 6548 | return reinterpret_cast<ByteArray*>(READ_FIELD(this, kRelocationInfoOffset)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6549 | } |
| 6550 | |
| 6551 | |
| 6552 | byte* Code::relocation_start() { |
Leon Clarke | ac95265 | 2010-07-15 11:15:24 +0100 | [diff] [blame] | 6553 | return unchecked_relocation_info()->GetDataStartAddress(); |
| 6554 | } |
| 6555 | |
| 6556 | |
| 6557 | int Code::relocation_size() { |
| 6558 | return unchecked_relocation_info()->length(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6559 | } |
| 6560 | |
| 6561 | |
| 6562 | byte* Code::entry() { |
| 6563 | return instruction_start(); |
| 6564 | } |
| 6565 | |
| 6566 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6567 | bool Code::contains(byte* inner_pointer) { |
| 6568 | return (address() <= inner_pointer) && (inner_pointer <= address() + Size()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6569 | } |
| 6570 | |
| 6571 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6572 | int Code::ExecutableSize() { |
| 6573 | // Check that the assumptions about the layout of the code object holds. |
| 6574 | DCHECK_EQ(static_cast<int>(instruction_start() - address()), |
| 6575 | Code::kHeaderSize); |
| 6576 | return instruction_size() + Code::kHeaderSize; |
| 6577 | } |
| 6578 | |
| 6579 | |
| 6580 | int Code::CodeSize() { return SizeFor(body_size()); } |
| 6581 | |
| 6582 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6583 | ACCESSORS(JSArray, length, Object, kLengthOffset) |
| 6584 | |
| 6585 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6586 | void* JSArrayBuffer::backing_store() const { |
| 6587 | intptr_t ptr = READ_INTPTR_FIELD(this, kBackingStoreOffset); |
| 6588 | return reinterpret_cast<void*>(ptr); |
| 6589 | } |
| 6590 | |
| 6591 | |
| 6592 | void JSArrayBuffer::set_backing_store(void* value, WriteBarrierMode mode) { |
| 6593 | intptr_t ptr = reinterpret_cast<intptr_t>(value); |
| 6594 | WRITE_INTPTR_FIELD(this, kBackingStoreOffset, ptr); |
| 6595 | } |
| 6596 | |
| 6597 | |
| 6598 | ACCESSORS(JSArrayBuffer, byte_length, Object, kByteLengthOffset) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6599 | |
| 6600 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6601 | void JSArrayBuffer::set_bit_field(uint32_t bits) { |
| 6602 | if (kInt32Size != kPointerSize) { |
| 6603 | #if V8_TARGET_LITTLE_ENDIAN |
| 6604 | WRITE_UINT32_FIELD(this, kBitFieldSlot + kInt32Size, 0); |
| 6605 | #else |
| 6606 | WRITE_UINT32_FIELD(this, kBitFieldSlot, 0); |
| 6607 | #endif |
| 6608 | } |
| 6609 | WRITE_UINT32_FIELD(this, kBitFieldOffset, bits); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6610 | } |
| 6611 | |
| 6612 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6613 | uint32_t JSArrayBuffer::bit_field() const { |
| 6614 | return READ_UINT32_FIELD(this, kBitFieldOffset); |
| 6615 | } |
| 6616 | |
| 6617 | |
| 6618 | bool JSArrayBuffer::is_external() { return IsExternal::decode(bit_field()); } |
| 6619 | |
| 6620 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6621 | void JSArrayBuffer::set_is_external(bool value) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6622 | set_bit_field(IsExternal::update(bit_field(), value)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6623 | } |
| 6624 | |
| 6625 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6626 | bool JSArrayBuffer::is_neuterable() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6627 | return IsNeuterable::decode(bit_field()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6628 | } |
| 6629 | |
| 6630 | |
| 6631 | void JSArrayBuffer::set_is_neuterable(bool value) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6632 | set_bit_field(IsNeuterable::update(bit_field(), value)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6633 | } |
| 6634 | |
| 6635 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6636 | bool JSArrayBuffer::was_neutered() { return WasNeutered::decode(bit_field()); } |
| 6637 | |
| 6638 | |
| 6639 | void JSArrayBuffer::set_was_neutered(bool value) { |
| 6640 | set_bit_field(WasNeutered::update(bit_field(), value)); |
| 6641 | } |
| 6642 | |
| 6643 | |
| 6644 | bool JSArrayBuffer::is_shared() { return IsShared::decode(bit_field()); } |
| 6645 | |
| 6646 | |
| 6647 | void JSArrayBuffer::set_is_shared(bool value) { |
| 6648 | set_bit_field(IsShared::update(bit_field(), value)); |
| 6649 | } |
| 6650 | |
| 6651 | |
| 6652 | Object* JSArrayBufferView::byte_offset() const { |
| 6653 | if (WasNeutered()) return Smi::FromInt(0); |
| 6654 | return Object::cast(READ_FIELD(this, kByteOffsetOffset)); |
| 6655 | } |
| 6656 | |
| 6657 | |
| 6658 | void JSArrayBufferView::set_byte_offset(Object* value, WriteBarrierMode mode) { |
| 6659 | WRITE_FIELD(this, kByteOffsetOffset, value); |
| 6660 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kByteOffsetOffset, value, mode); |
| 6661 | } |
| 6662 | |
| 6663 | |
| 6664 | Object* JSArrayBufferView::byte_length() const { |
| 6665 | if (WasNeutered()) return Smi::FromInt(0); |
| 6666 | return Object::cast(READ_FIELD(this, kByteLengthOffset)); |
| 6667 | } |
| 6668 | |
| 6669 | |
| 6670 | void JSArrayBufferView::set_byte_length(Object* value, WriteBarrierMode mode) { |
| 6671 | WRITE_FIELD(this, kByteLengthOffset, value); |
| 6672 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kByteLengthOffset, value, mode); |
| 6673 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6674 | |
| 6675 | |
| 6676 | ACCESSORS(JSArrayBufferView, buffer, Object, kBufferOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6677 | #ifdef VERIFY_HEAP |
| 6678 | ACCESSORS(JSArrayBufferView, raw_byte_offset, Object, kByteOffsetOffset) |
| 6679 | ACCESSORS(JSArrayBufferView, raw_byte_length, Object, kByteLengthOffset) |
| 6680 | #endif |
| 6681 | |
| 6682 | |
| 6683 | bool JSArrayBufferView::WasNeutered() const { |
| 6684 | return JSArrayBuffer::cast(buffer())->was_neutered(); |
| 6685 | } |
| 6686 | |
| 6687 | |
| 6688 | Object* JSTypedArray::length() const { |
| 6689 | if (WasNeutered()) return Smi::FromInt(0); |
| 6690 | return Object::cast(READ_FIELD(this, kLengthOffset)); |
| 6691 | } |
| 6692 | |
| 6693 | |
| 6694 | uint32_t JSTypedArray::length_value() const { |
| 6695 | if (WasNeutered()) return 0; |
| 6696 | uint32_t index = 0; |
| 6697 | CHECK(Object::cast(READ_FIELD(this, kLengthOffset))->ToArrayLength(&index)); |
| 6698 | return index; |
| 6699 | } |
| 6700 | |
| 6701 | |
| 6702 | void JSTypedArray::set_length(Object* value, WriteBarrierMode mode) { |
| 6703 | WRITE_FIELD(this, kLengthOffset, value); |
| 6704 | CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kLengthOffset, value, mode); |
| 6705 | } |
| 6706 | |
| 6707 | |
| 6708 | #ifdef VERIFY_HEAP |
| 6709 | ACCESSORS(JSTypedArray, raw_length, Object, kLengthOffset) |
| 6710 | #endif |
| 6711 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6712 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6713 | ACCESSORS(JSRegExp, data, Object, kDataOffset) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6714 | ACCESSORS(JSRegExp, flags, Object, kFlagsOffset) |
| 6715 | ACCESSORS(JSRegExp, source, Object, kSourceOffset) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6716 | |
| 6717 | |
| 6718 | JSRegExp::Type JSRegExp::TypeTag() { |
| 6719 | Object* data = this->data(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6720 | if (data->IsUndefined(GetIsolate())) return JSRegExp::NOT_COMPILED; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6721 | Smi* smi = Smi::cast(FixedArray::cast(data)->get(kTagIndex)); |
| 6722 | return static_cast<JSRegExp::Type>(smi->value()); |
| 6723 | } |
| 6724 | |
| 6725 | |
| 6726 | int JSRegExp::CaptureCount() { |
| 6727 | switch (TypeTag()) { |
| 6728 | case ATOM: |
| 6729 | return 0; |
| 6730 | case IRREGEXP: |
| 6731 | return Smi::cast(DataAt(kIrregexpCaptureCountIndex))->value(); |
| 6732 | default: |
| 6733 | UNREACHABLE(); |
| 6734 | return -1; |
| 6735 | } |
| 6736 | } |
| 6737 | |
| 6738 | |
| 6739 | JSRegExp::Flags JSRegExp::GetFlags() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6740 | DCHECK(this->data()->IsFixedArray()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6741 | Object* data = this->data(); |
| 6742 | Smi* smi = Smi::cast(FixedArray::cast(data)->get(kFlagsIndex)); |
| 6743 | return Flags(smi->value()); |
| 6744 | } |
| 6745 | |
| 6746 | |
| 6747 | String* JSRegExp::Pattern() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6748 | DCHECK(this->data()->IsFixedArray()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6749 | Object* data = this->data(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6750 | String* pattern = String::cast(FixedArray::cast(data)->get(kSourceIndex)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6751 | return pattern; |
| 6752 | } |
| 6753 | |
| 6754 | |
| 6755 | Object* JSRegExp::DataAt(int index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6756 | DCHECK(TypeTag() != NOT_COMPILED); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6757 | return FixedArray::cast(data())->get(index); |
| 6758 | } |
| 6759 | |
| 6760 | |
| 6761 | void JSRegExp::SetDataAt(int index, Object* value) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6762 | DCHECK(TypeTag() != NOT_COMPILED); |
| 6763 | DCHECK(index >= kDataIndex); // Only implementation data can be set this way. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6764 | FixedArray::cast(data())->set(index, value); |
| 6765 | } |
| 6766 | |
| 6767 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 6768 | ElementsKind JSObject::GetElementsKind() { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6769 | ElementsKind kind = map()->elements_kind(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6770 | #if VERIFY_HEAP && DEBUG |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6771 | FixedArrayBase* fixed_array = |
| 6772 | reinterpret_cast<FixedArrayBase*>(READ_FIELD(this, kElementsOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6773 | |
| 6774 | // If a GC was caused while constructing this object, the elements |
| 6775 | // pointer may point to a one pointer filler map. |
| 6776 | if (ElementsAreSafeToExamine()) { |
| 6777 | Map* map = fixed_array->map(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6778 | if (IsFastSmiOrObjectElementsKind(kind)) { |
| 6779 | DCHECK(map == GetHeap()->fixed_array_map() || |
| 6780 | map == GetHeap()->fixed_cow_array_map()); |
| 6781 | } else if (IsFastDoubleElementsKind(kind)) { |
| 6782 | DCHECK(fixed_array->IsFixedDoubleArray() || |
| 6783 | fixed_array == GetHeap()->empty_fixed_array()); |
| 6784 | } else if (kind == DICTIONARY_ELEMENTS) { |
| 6785 | DCHECK(fixed_array->IsFixedArray()); |
| 6786 | DCHECK(fixed_array->IsDictionary()); |
| 6787 | } else { |
| 6788 | DCHECK(kind > DICTIONARY_ELEMENTS); |
| 6789 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6790 | DCHECK(!IsSloppyArgumentsElements(kind) || |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6791 | (elements()->IsFixedArray() && elements()->length() >= 2)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6792 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6793 | #endif |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6794 | return kind; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6795 | } |
| 6796 | |
| 6797 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6798 | bool JSObject::HasFastObjectElements() { |
| 6799 | return IsFastObjectElementsKind(GetElementsKind()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6800 | } |
| 6801 | |
| 6802 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6803 | bool JSObject::HasFastSmiElements() { |
| 6804 | return IsFastSmiElementsKind(GetElementsKind()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6805 | } |
| 6806 | |
| 6807 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6808 | bool JSObject::HasFastSmiOrObjectElements() { |
| 6809 | return IsFastSmiOrObjectElementsKind(GetElementsKind()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6810 | } |
| 6811 | |
| 6812 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6813 | bool JSObject::HasFastDoubleElements() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6814 | return IsFastDoubleElementsKind(GetElementsKind()); |
| 6815 | } |
| 6816 | |
| 6817 | |
| 6818 | bool JSObject::HasFastHoleyElements() { |
| 6819 | return IsFastHoleyElementsKind(GetElementsKind()); |
| 6820 | } |
| 6821 | |
| 6822 | |
| 6823 | bool JSObject::HasFastElements() { |
| 6824 | return IsFastElementsKind(GetElementsKind()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 6825 | } |
| 6826 | |
| 6827 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6828 | bool JSObject::HasDictionaryElements() { |
| 6829 | return GetElementsKind() == DICTIONARY_ELEMENTS; |
| 6830 | } |
| 6831 | |
| 6832 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6833 | bool JSObject::HasFastArgumentsElements() { |
| 6834 | return GetElementsKind() == FAST_SLOPPY_ARGUMENTS_ELEMENTS; |
| 6835 | } |
| 6836 | |
| 6837 | |
| 6838 | bool JSObject::HasSlowArgumentsElements() { |
| 6839 | return GetElementsKind() == SLOW_SLOPPY_ARGUMENTS_ELEMENTS; |
| 6840 | } |
| 6841 | |
| 6842 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6843 | bool JSObject::HasSloppyArgumentsElements() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6844 | return IsSloppyArgumentsElements(GetElementsKind()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6845 | } |
| 6846 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6847 | bool JSObject::HasStringWrapperElements() { |
| 6848 | return IsStringWrapperElementsKind(GetElementsKind()); |
| 6849 | } |
| 6850 | |
| 6851 | bool JSObject::HasFastStringWrapperElements() { |
| 6852 | return GetElementsKind() == FAST_STRING_WRAPPER_ELEMENTS; |
| 6853 | } |
| 6854 | |
| 6855 | bool JSObject::HasSlowStringWrapperElements() { |
| 6856 | return GetElementsKind() == SLOW_STRING_WRAPPER_ELEMENTS; |
| 6857 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6858 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6859 | bool JSObject::HasFixedTypedArrayElements() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6860 | DCHECK_NOT_NULL(elements()); |
| 6861 | return map()->has_fixed_typed_array_elements(); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 6862 | } |
| 6863 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6864 | #define FIXED_TYPED_ELEMENTS_CHECK(Type, type, TYPE, ctype, size) \ |
| 6865 | bool JSObject::HasFixed##Type##Elements() { \ |
| 6866 | HeapObject* array = elements(); \ |
| 6867 | DCHECK(array != NULL); \ |
| 6868 | if (!array->IsHeapObject()) return false; \ |
| 6869 | return array->map()->instance_type() == FIXED_##TYPE##_ARRAY_TYPE; \ |
| 6870 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6871 | |
| 6872 | TYPED_ARRAYS(FIXED_TYPED_ELEMENTS_CHECK) |
| 6873 | |
| 6874 | #undef FIXED_TYPED_ELEMENTS_CHECK |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 6875 | |
| 6876 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6877 | bool JSObject::HasNamedInterceptor() { |
| 6878 | return map()->has_named_interceptor(); |
| 6879 | } |
| 6880 | |
| 6881 | |
| 6882 | bool JSObject::HasIndexedInterceptor() { |
| 6883 | return map()->has_indexed_interceptor(); |
| 6884 | } |
| 6885 | |
| 6886 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6887 | GlobalDictionary* JSObject::global_dictionary() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6888 | DCHECK(!HasFastProperties()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6889 | DCHECK(IsJSGlobalObject()); |
| 6890 | return GlobalDictionary::cast(properties()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6891 | } |
| 6892 | |
| 6893 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 6894 | SeededNumberDictionary* JSObject::element_dictionary() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6895 | DCHECK(HasDictionaryElements() || HasSlowStringWrapperElements()); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 6896 | return SeededNumberDictionary::cast(elements()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6897 | } |
| 6898 | |
| 6899 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6900 | bool Name::IsHashFieldComputed(uint32_t field) { |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 6901 | return (field & kHashNotComputedMask) == 0; |
| 6902 | } |
| 6903 | |
| 6904 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6905 | bool Name::HasHashCode() { |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 6906 | return IsHashFieldComputed(hash_field()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6907 | } |
| 6908 | |
| 6909 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6910 | uint32_t Name::Hash() { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6911 | // Fast case: has hash code already been computed? |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 6912 | uint32_t field = hash_field(); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 6913 | if (IsHashFieldComputed(field)) return field >> kHashShift; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6914 | // Slow case: compute hash code and set it. Has to be a string. |
| 6915 | return String::cast(this)->ComputeAndSetHash(); |
| 6916 | } |
| 6917 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6918 | |
| 6919 | bool Name::IsPrivate() { |
| 6920 | return this->IsSymbol() && Symbol::cast(this)->is_private(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6921 | } |
| 6922 | |
| 6923 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 6924 | StringHasher::StringHasher(int length, uint32_t seed) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6925 | : length_(length), |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 6926 | raw_running_hash_(seed), |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6927 | array_index_(0), |
| 6928 | is_array_index_(0 < length_ && length_ <= String::kMaxArrayIndexSize), |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6929 | is_first_char_(true) { |
| 6930 | DCHECK(FLAG_randomize_hashes || raw_running_hash_ == 0); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 6931 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6932 | |
| 6933 | |
| 6934 | bool StringHasher::has_trivial_hash() { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 6935 | return length_ > String::kMaxHashCalcLength; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6936 | } |
| 6937 | |
| 6938 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6939 | uint32_t StringHasher::AddCharacterCore(uint32_t running_hash, uint16_t c) { |
| 6940 | running_hash += c; |
| 6941 | running_hash += (running_hash << 10); |
| 6942 | running_hash ^= (running_hash >> 6); |
| 6943 | return running_hash; |
| 6944 | } |
| 6945 | |
| 6946 | |
| 6947 | uint32_t StringHasher::GetHashCore(uint32_t running_hash) { |
| 6948 | running_hash += (running_hash << 3); |
| 6949 | running_hash ^= (running_hash >> 11); |
| 6950 | running_hash += (running_hash << 15); |
| 6951 | if ((running_hash & String::kHashBitMask) == 0) { |
| 6952 | return kZeroHash; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 6953 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6954 | return running_hash; |
| 6955 | } |
| 6956 | |
| 6957 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6958 | uint32_t StringHasher::ComputeRunningHash(uint32_t running_hash, |
| 6959 | const uc16* chars, int length) { |
| 6960 | DCHECK_NOT_NULL(chars); |
| 6961 | DCHECK(length >= 0); |
| 6962 | for (int i = 0; i < length; ++i) { |
| 6963 | running_hash = AddCharacterCore(running_hash, *chars++); |
| 6964 | } |
| 6965 | return running_hash; |
| 6966 | } |
| 6967 | |
| 6968 | |
| 6969 | uint32_t StringHasher::ComputeRunningHashOneByte(uint32_t running_hash, |
| 6970 | const char* chars, |
| 6971 | int length) { |
| 6972 | DCHECK_NOT_NULL(chars); |
| 6973 | DCHECK(length >= 0); |
| 6974 | for (int i = 0; i < length; ++i) { |
| 6975 | uint16_t c = static_cast<uint16_t>(*chars++); |
| 6976 | running_hash = AddCharacterCore(running_hash, c); |
| 6977 | } |
| 6978 | return running_hash; |
| 6979 | } |
| 6980 | |
| 6981 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6982 | void StringHasher::AddCharacter(uint16_t c) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6983 | // Use the Jenkins one-at-a-time hash function to update the hash |
| 6984 | // for the given character. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6985 | raw_running_hash_ = AddCharacterCore(raw_running_hash_, c); |
| 6986 | } |
| 6987 | |
| 6988 | |
| 6989 | bool StringHasher::UpdateIndex(uint16_t c) { |
| 6990 | DCHECK(is_array_index_); |
| 6991 | if (c < '0' || c > '9') { |
| 6992 | is_array_index_ = false; |
| 6993 | return false; |
| 6994 | } |
| 6995 | int d = c - '0'; |
| 6996 | if (is_first_char_) { |
| 6997 | is_first_char_ = false; |
| 6998 | if (c == '0' && length_ > 1) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6999 | is_array_index_ = false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7000 | return false; |
| 7001 | } |
| 7002 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7003 | if (array_index_ > 429496729U - ((d + 3) >> 3)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7004 | is_array_index_ = false; |
| 7005 | return false; |
| 7006 | } |
| 7007 | array_index_ = array_index_ * 10 + d; |
| 7008 | return true; |
| 7009 | } |
| 7010 | |
| 7011 | |
| 7012 | template<typename Char> |
| 7013 | inline void StringHasher::AddCharacters(const Char* chars, int length) { |
| 7014 | DCHECK(sizeof(Char) == 1 || sizeof(Char) == 2); |
| 7015 | int i = 0; |
| 7016 | if (is_array_index_) { |
| 7017 | for (; i < length; i++) { |
| 7018 | AddCharacter(chars[i]); |
| 7019 | if (!UpdateIndex(chars[i])) { |
| 7020 | i++; |
| 7021 | break; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7022 | } |
| 7023 | } |
| 7024 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7025 | for (; i < length; i++) { |
| 7026 | DCHECK(!is_array_index_); |
| 7027 | AddCharacter(chars[i]); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7028 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7029 | } |
| 7030 | |
| 7031 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7032 | template <typename schar> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7033 | uint32_t StringHasher::HashSequentialString(const schar* chars, |
| 7034 | int length, |
| 7035 | uint32_t seed) { |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 7036 | StringHasher hasher(length, seed); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7037 | if (!hasher.has_trivial_hash()) hasher.AddCharacters(chars, length); |
| 7038 | return hasher.GetHashField(); |
| 7039 | } |
| 7040 | |
| 7041 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7042 | IteratingStringHasher::IteratingStringHasher(int len, uint32_t seed) |
| 7043 | : StringHasher(len, seed) {} |
| 7044 | |
| 7045 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7046 | uint32_t IteratingStringHasher::Hash(String* string, uint32_t seed) { |
| 7047 | IteratingStringHasher hasher(string->length(), seed); |
| 7048 | // Nothing to do. |
| 7049 | if (hasher.has_trivial_hash()) return hasher.GetHashField(); |
| 7050 | ConsString* cons_string = String::VisitFlat(&hasher, string); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7051 | if (cons_string == nullptr) return hasher.GetHashField(); |
| 7052 | hasher.VisitConsString(cons_string); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7053 | return hasher.GetHashField(); |
| 7054 | } |
| 7055 | |
| 7056 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7057 | void IteratingStringHasher::VisitOneByteString(const uint8_t* chars, |
| 7058 | int length) { |
| 7059 | AddCharacters(chars, length); |
| 7060 | } |
| 7061 | |
| 7062 | |
| 7063 | void IteratingStringHasher::VisitTwoByteString(const uint16_t* chars, |
| 7064 | int length) { |
| 7065 | AddCharacters(chars, length); |
| 7066 | } |
| 7067 | |
| 7068 | |
| 7069 | bool Name::AsArrayIndex(uint32_t* index) { |
| 7070 | return IsString() && String::cast(this)->AsArrayIndex(index); |
| 7071 | } |
| 7072 | |
| 7073 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7074 | bool String::AsArrayIndex(uint32_t* index) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7075 | uint32_t field = hash_field(); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 7076 | if (IsHashFieldComputed(field) && (field & kIsNotArrayIndexMask)) { |
| 7077 | return false; |
| 7078 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7079 | return SlowAsArrayIndex(index); |
| 7080 | } |
| 7081 | |
| 7082 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7083 | void String::SetForwardedInternalizedString(String* canonical) { |
| 7084 | DCHECK(IsInternalizedString()); |
| 7085 | DCHECK(HasHashCode()); |
| 7086 | if (canonical == this) return; // No need to forward. |
| 7087 | DCHECK(SlowEquals(canonical)); |
| 7088 | DCHECK(canonical->IsInternalizedString()); |
| 7089 | DCHECK(canonical->HasHashCode()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7090 | WRITE_FIELD(this, kHashFieldSlot, canonical); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7091 | // Setting the hash field to a tagged value sets the LSB, causing the hash |
| 7092 | // code to be interpreted as uninitialized. We use this fact to recognize |
| 7093 | // that we have a forwarded string. |
| 7094 | DCHECK(!HasHashCode()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7095 | } |
| 7096 | |
| 7097 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7098 | String* String::GetForwardedInternalizedString() { |
| 7099 | DCHECK(IsInternalizedString()); |
| 7100 | if (HasHashCode()) return this; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7101 | String* canonical = String::cast(READ_FIELD(this, kHashFieldSlot)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7102 | DCHECK(canonical->IsInternalizedString()); |
| 7103 | DCHECK(SlowEquals(canonical)); |
| 7104 | DCHECK(canonical->HasHashCode()); |
| 7105 | return canonical; |
| 7106 | } |
| 7107 | |
| 7108 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7109 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7110 | Maybe<bool> Object::GreaterThan(Handle<Object> x, Handle<Object> y) { |
| 7111 | Maybe<ComparisonResult> result = Compare(x, y); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7112 | if (result.IsJust()) { |
| 7113 | switch (result.FromJust()) { |
| 7114 | case ComparisonResult::kGreaterThan: |
| 7115 | return Just(true); |
| 7116 | case ComparisonResult::kLessThan: |
| 7117 | case ComparisonResult::kEqual: |
| 7118 | case ComparisonResult::kUndefined: |
| 7119 | return Just(false); |
| 7120 | } |
| 7121 | } |
| 7122 | return Nothing<bool>(); |
| 7123 | } |
| 7124 | |
| 7125 | |
| 7126 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7127 | Maybe<bool> Object::GreaterThanOrEqual(Handle<Object> x, Handle<Object> y) { |
| 7128 | Maybe<ComparisonResult> result = Compare(x, y); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7129 | if (result.IsJust()) { |
| 7130 | switch (result.FromJust()) { |
| 7131 | case ComparisonResult::kEqual: |
| 7132 | case ComparisonResult::kGreaterThan: |
| 7133 | return Just(true); |
| 7134 | case ComparisonResult::kLessThan: |
| 7135 | case ComparisonResult::kUndefined: |
| 7136 | return Just(false); |
| 7137 | } |
| 7138 | } |
| 7139 | return Nothing<bool>(); |
| 7140 | } |
| 7141 | |
| 7142 | |
| 7143 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7144 | Maybe<bool> Object::LessThan(Handle<Object> x, Handle<Object> y) { |
| 7145 | Maybe<ComparisonResult> result = Compare(x, y); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7146 | if (result.IsJust()) { |
| 7147 | switch (result.FromJust()) { |
| 7148 | case ComparisonResult::kLessThan: |
| 7149 | return Just(true); |
| 7150 | case ComparisonResult::kEqual: |
| 7151 | case ComparisonResult::kGreaterThan: |
| 7152 | case ComparisonResult::kUndefined: |
| 7153 | return Just(false); |
| 7154 | } |
| 7155 | } |
| 7156 | return Nothing<bool>(); |
| 7157 | } |
| 7158 | |
| 7159 | |
| 7160 | // static |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7161 | Maybe<bool> Object::LessThanOrEqual(Handle<Object> x, Handle<Object> y) { |
| 7162 | Maybe<ComparisonResult> result = Compare(x, y); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7163 | if (result.IsJust()) { |
| 7164 | switch (result.FromJust()) { |
| 7165 | case ComparisonResult::kEqual: |
| 7166 | case ComparisonResult::kLessThan: |
| 7167 | return Just(true); |
| 7168 | case ComparisonResult::kGreaterThan: |
| 7169 | case ComparisonResult::kUndefined: |
| 7170 | return Just(false); |
| 7171 | } |
| 7172 | } |
| 7173 | return Nothing<bool>(); |
| 7174 | } |
| 7175 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7176 | MaybeHandle<Object> Object::GetPropertyOrElement(Handle<Object> object, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7177 | Handle<Name> name) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7178 | LookupIterator it = |
| 7179 | LookupIterator::PropertyOrElement(name->GetIsolate(), object, name); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7180 | return GetProperty(&it); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7181 | } |
| 7182 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7183 | MaybeHandle<Object> Object::SetPropertyOrElement(Handle<Object> object, |
| 7184 | Handle<Name> name, |
| 7185 | Handle<Object> value, |
| 7186 | LanguageMode language_mode, |
| 7187 | StoreFromKeyed store_mode) { |
| 7188 | LookupIterator it = |
| 7189 | LookupIterator::PropertyOrElement(name->GetIsolate(), object, name); |
| 7190 | MAYBE_RETURN_NULL(SetProperty(&it, value, language_mode, store_mode)); |
| 7191 | return value; |
| 7192 | } |
| 7193 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7194 | MaybeHandle<Object> Object::GetPropertyOrElement(Handle<Object> receiver, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7195 | Handle<Name> name, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7196 | Handle<JSReceiver> holder) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7197 | LookupIterator it = LookupIterator::PropertyOrElement( |
| 7198 | name->GetIsolate(), receiver, name, holder); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 7199 | return GetProperty(&it); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7200 | } |
| 7201 | |
| 7202 | |
| 7203 | void JSReceiver::initialize_properties() { |
| 7204 | DCHECK(!GetHeap()->InNewSpace(GetHeap()->empty_fixed_array())); |
| 7205 | DCHECK(!GetHeap()->InNewSpace(GetHeap()->empty_properties_dictionary())); |
| 7206 | if (map()->is_dictionary_map()) { |
| 7207 | WRITE_FIELD(this, kPropertiesOffset, |
| 7208 | GetHeap()->empty_properties_dictionary()); |
| 7209 | } else { |
| 7210 | WRITE_FIELD(this, kPropertiesOffset, GetHeap()->empty_fixed_array()); |
| 7211 | } |
| 7212 | } |
| 7213 | |
| 7214 | |
| 7215 | bool JSReceiver::HasFastProperties() { |
| 7216 | DCHECK(properties()->IsDictionary() == map()->is_dictionary_map()); |
| 7217 | return !properties()->IsDictionary(); |
| 7218 | } |
| 7219 | |
| 7220 | |
| 7221 | NameDictionary* JSReceiver::property_dictionary() { |
| 7222 | DCHECK(!HasFastProperties()); |
| 7223 | DCHECK(!IsJSGlobalObject()); |
| 7224 | return NameDictionary::cast(properties()); |
| 7225 | } |
| 7226 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7227 | Maybe<bool> JSReceiver::HasProperty(Handle<JSReceiver> object, |
| 7228 | Handle<Name> name) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7229 | LookupIterator it = LookupIterator::PropertyOrElement(object->GetIsolate(), |
| 7230 | object, name, object); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7231 | return HasProperty(&it); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 7232 | } |
| 7233 | |
| 7234 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7235 | Maybe<bool> JSReceiver::HasOwnProperty(Handle<JSReceiver> object, |
| 7236 | Handle<Name> name) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7237 | if (object->IsJSObject()) { // Shortcut |
| 7238 | LookupIterator it = LookupIterator::PropertyOrElement( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7239 | object->GetIsolate(), object, name, object, LookupIterator::OWN); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7240 | return HasProperty(&it); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 7241 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7242 | |
| 7243 | Maybe<PropertyAttributes> attributes = |
| 7244 | JSReceiver::GetOwnPropertyAttributes(object, name); |
| 7245 | MAYBE_RETURN(attributes, Nothing<bool>()); |
| 7246 | return Just(attributes.FromJust() != ABSENT); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 7247 | } |
| 7248 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7249 | Maybe<bool> JSReceiver::HasOwnProperty(Handle<JSReceiver> object, |
| 7250 | uint32_t index) { |
| 7251 | if (object->IsJSObject()) { // Shortcut |
| 7252 | LookupIterator it(object->GetIsolate(), object, index, object, |
| 7253 | LookupIterator::OWN); |
| 7254 | return HasProperty(&it); |
| 7255 | } |
| 7256 | |
| 7257 | Maybe<PropertyAttributes> attributes = |
| 7258 | JSReceiver::GetOwnPropertyAttributes(object, index); |
| 7259 | MAYBE_RETURN(attributes, Nothing<bool>()); |
| 7260 | return Just(attributes.FromJust() != ABSENT); |
| 7261 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 7262 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7263 | Maybe<PropertyAttributes> JSReceiver::GetPropertyAttributes( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7264 | Handle<JSReceiver> object, Handle<Name> name) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7265 | LookupIterator it = LookupIterator::PropertyOrElement(name->GetIsolate(), |
| 7266 | object, name, object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7267 | return GetPropertyAttributes(&it); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7268 | } |
| 7269 | |
| 7270 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7271 | Maybe<PropertyAttributes> JSReceiver::GetOwnPropertyAttributes( |
| 7272 | Handle<JSReceiver> object, Handle<Name> name) { |
| 7273 | LookupIterator it = LookupIterator::PropertyOrElement( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7274 | name->GetIsolate(), object, name, object, LookupIterator::OWN); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7275 | return GetPropertyAttributes(&it); |
| 7276 | } |
| 7277 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7278 | Maybe<PropertyAttributes> JSReceiver::GetOwnPropertyAttributes( |
| 7279 | Handle<JSReceiver> object, uint32_t index) { |
| 7280 | LookupIterator it(object->GetIsolate(), object, index, object, |
| 7281 | LookupIterator::OWN); |
| 7282 | return GetPropertyAttributes(&it); |
| 7283 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7284 | |
| 7285 | Maybe<bool> JSReceiver::HasElement(Handle<JSReceiver> object, uint32_t index) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7286 | LookupIterator it(object->GetIsolate(), object, index, object); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7287 | return HasProperty(&it); |
| 7288 | } |
| 7289 | |
| 7290 | |
| 7291 | Maybe<PropertyAttributes> JSReceiver::GetElementAttributes( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7292 | Handle<JSReceiver> object, uint32_t index) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7293 | Isolate* isolate = object->GetIsolate(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7294 | LookupIterator it(isolate, object, index, object); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7295 | return GetPropertyAttributes(&it); |
| 7296 | } |
| 7297 | |
| 7298 | |
| 7299 | Maybe<PropertyAttributes> JSReceiver::GetOwnElementAttributes( |
| 7300 | Handle<JSReceiver> object, uint32_t index) { |
| 7301 | Isolate* isolate = object->GetIsolate(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 7302 | LookupIterator it(isolate, object, index, object, LookupIterator::OWN); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7303 | return GetPropertyAttributes(&it); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7304 | } |
| 7305 | |
| 7306 | |
| 7307 | bool JSGlobalObject::IsDetached() { |
| 7308 | return JSGlobalProxy::cast(global_proxy())->IsDetachedFrom(this); |
| 7309 | } |
| 7310 | |
| 7311 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7312 | bool JSGlobalProxy::IsDetachedFrom(JSGlobalObject* global) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7313 | const PrototypeIterator iter(this->GetIsolate(), |
| 7314 | const_cast<JSGlobalProxy*>(this)); |
| 7315 | return iter.GetCurrent() != global; |
| 7316 | } |
| 7317 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7318 | Smi* JSReceiver::GetOrCreateIdentityHash(Isolate* isolate, |
| 7319 | Handle<JSReceiver> object) { |
| 7320 | return object->IsJSProxy() ? JSProxy::GetOrCreateIdentityHash( |
| 7321 | isolate, Handle<JSProxy>::cast(object)) |
| 7322 | : JSObject::GetOrCreateIdentityHash( |
| 7323 | isolate, Handle<JSObject>::cast(object)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7324 | } |
| 7325 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7326 | Object* JSReceiver::GetIdentityHash(Isolate* isolate, |
| 7327 | Handle<JSReceiver> receiver) { |
| 7328 | return receiver->IsJSProxy() |
| 7329 | ? JSProxy::GetIdentityHash(Handle<JSProxy>::cast(receiver)) |
| 7330 | : JSObject::GetIdentityHash(isolate, |
| 7331 | Handle<JSObject>::cast(receiver)); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7332 | } |
| 7333 | |
| 7334 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7335 | bool AccessorInfo::all_can_read() { |
| 7336 | return BooleanBit::get(flag(), kAllCanReadBit); |
| 7337 | } |
| 7338 | |
| 7339 | |
| 7340 | void AccessorInfo::set_all_can_read(bool value) { |
| 7341 | set_flag(BooleanBit::set(flag(), kAllCanReadBit, value)); |
| 7342 | } |
| 7343 | |
| 7344 | |
| 7345 | bool AccessorInfo::all_can_write() { |
| 7346 | return BooleanBit::get(flag(), kAllCanWriteBit); |
| 7347 | } |
| 7348 | |
| 7349 | |
| 7350 | void AccessorInfo::set_all_can_write(bool value) { |
| 7351 | set_flag(BooleanBit::set(flag(), kAllCanWriteBit, value)); |
| 7352 | } |
| 7353 | |
| 7354 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7355 | bool AccessorInfo::is_special_data_property() { |
| 7356 | return BooleanBit::get(flag(), kSpecialDataProperty); |
| 7357 | } |
| 7358 | |
| 7359 | |
| 7360 | void AccessorInfo::set_is_special_data_property(bool value) { |
| 7361 | set_flag(BooleanBit::set(flag(), kSpecialDataProperty, value)); |
| 7362 | } |
| 7363 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7364 | bool AccessorInfo::is_sloppy() { return BooleanBit::get(flag(), kIsSloppy); } |
| 7365 | |
| 7366 | void AccessorInfo::set_is_sloppy(bool value) { |
| 7367 | set_flag(BooleanBit::set(flag(), kIsSloppy, value)); |
| 7368 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7369 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7370 | PropertyAttributes AccessorInfo::property_attributes() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7371 | return AttributesField::decode(static_cast<uint32_t>(flag())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7372 | } |
| 7373 | |
| 7374 | |
| 7375 | void AccessorInfo::set_property_attributes(PropertyAttributes attributes) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7376 | set_flag(AttributesField::update(flag(), attributes)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7377 | } |
| 7378 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7379 | bool FunctionTemplateInfo::IsTemplateFor(JSObject* object) { |
| 7380 | return IsTemplateFor(object->map()); |
| 7381 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 7382 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7383 | bool AccessorInfo::IsCompatibleReceiver(Object* receiver) { |
| 7384 | if (!HasExpectedReceiverType()) return true; |
| 7385 | if (!receiver->IsJSObject()) return false; |
| 7386 | return FunctionTemplateInfo::cast(expected_receiver_type()) |
| 7387 | ->IsTemplateFor(JSObject::cast(receiver)->map()); |
| 7388 | } |
| 7389 | |
| 7390 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7391 | bool AccessorInfo::HasExpectedReceiverType() { |
| 7392 | return expected_receiver_type()->IsFunctionTemplateInfo(); |
| 7393 | } |
| 7394 | |
| 7395 | |
| 7396 | Object* AccessorPair::get(AccessorComponent component) { |
| 7397 | return component == ACCESSOR_GETTER ? getter() : setter(); |
| 7398 | } |
| 7399 | |
| 7400 | |
| 7401 | void AccessorPair::set(AccessorComponent component, Object* value) { |
| 7402 | if (component == ACCESSOR_GETTER) { |
| 7403 | set_getter(value); |
| 7404 | } else { |
| 7405 | set_setter(value); |
| 7406 | } |
| 7407 | } |
| 7408 | |
| 7409 | |
| 7410 | void AccessorPair::SetComponents(Object* getter, Object* setter) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7411 | Isolate* isolate = GetIsolate(); |
| 7412 | if (!getter->IsNull(isolate)) set_getter(getter); |
| 7413 | if (!setter->IsNull(isolate)) set_setter(setter); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7414 | } |
| 7415 | |
| 7416 | |
| 7417 | bool AccessorPair::Equals(AccessorPair* pair) { |
| 7418 | return (this == pair) || pair->Equals(getter(), setter()); |
| 7419 | } |
| 7420 | |
| 7421 | |
| 7422 | bool AccessorPair::Equals(Object* getter_value, Object* setter_value) { |
| 7423 | return (getter() == getter_value) && (setter() == setter_value); |
| 7424 | } |
| 7425 | |
| 7426 | |
| 7427 | bool AccessorPair::ContainsAccessor() { |
| 7428 | return IsJSAccessor(getter()) || IsJSAccessor(setter()); |
| 7429 | } |
| 7430 | |
| 7431 | |
| 7432 | bool AccessorPair::IsJSAccessor(Object* obj) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7433 | return obj->IsCallable() || obj->IsUndefined(GetIsolate()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7434 | } |
| 7435 | |
| 7436 | |
| 7437 | template<typename Derived, typename Shape, typename Key> |
| 7438 | void Dictionary<Derived, Shape, Key>::SetEntry(int entry, |
| 7439 | Handle<Object> key, |
| 7440 | Handle<Object> value) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7441 | this->SetEntry(entry, key, value, PropertyDetails(Smi::FromInt(0))); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 7442 | } |
| 7443 | |
| 7444 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7445 | template<typename Derived, typename Shape, typename Key> |
| 7446 | void Dictionary<Derived, Shape, Key>::SetEntry(int entry, |
| 7447 | Handle<Object> key, |
| 7448 | Handle<Object> value, |
| 7449 | PropertyDetails details) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7450 | Shape::SetEntry(static_cast<Derived*>(this), entry, key, value, details); |
| 7451 | } |
| 7452 | |
| 7453 | |
| 7454 | template <typename Key> |
| 7455 | template <typename Dictionary> |
| 7456 | void BaseDictionaryShape<Key>::SetEntry(Dictionary* dict, int entry, |
| 7457 | Handle<Object> key, |
| 7458 | Handle<Object> value, |
| 7459 | PropertyDetails details) { |
| 7460 | STATIC_ASSERT(Dictionary::kEntrySize == 3); |
| 7461 | DCHECK(!key->IsName() || details.dictionary_index() > 0); |
| 7462 | int index = dict->EntryToIndex(entry); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7463 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7464 | WriteBarrierMode mode = dict->GetWriteBarrierMode(no_gc); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7465 | dict->set(index + Dictionary::kEntryKeyIndex, *key, mode); |
| 7466 | dict->set(index + Dictionary::kEntryValueIndex, *value, mode); |
| 7467 | dict->set(index + Dictionary::kEntryDetailsIndex, details.AsSmi()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7468 | } |
| 7469 | |
| 7470 | |
| 7471 | template <typename Dictionary> |
| 7472 | void GlobalDictionaryShape::SetEntry(Dictionary* dict, int entry, |
| 7473 | Handle<Object> key, Handle<Object> value, |
| 7474 | PropertyDetails details) { |
| 7475 | STATIC_ASSERT(Dictionary::kEntrySize == 2); |
| 7476 | DCHECK(!key->IsName() || details.dictionary_index() > 0); |
| 7477 | DCHECK(value->IsPropertyCell()); |
| 7478 | int index = dict->EntryToIndex(entry); |
| 7479 | DisallowHeapAllocation no_gc; |
| 7480 | WriteBarrierMode mode = dict->GetWriteBarrierMode(no_gc); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7481 | dict->set(index + Dictionary::kEntryKeyIndex, *key, mode); |
| 7482 | dict->set(index + Dictionary::kEntryValueIndex, *value, mode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7483 | PropertyCell::cast(*value)->set_property_details(details); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7484 | } |
| 7485 | |
| 7486 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7487 | bool NumberDictionaryShape::IsMatch(uint32_t key, Object* other) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7488 | DCHECK(other->IsNumber()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7489 | return key == static_cast<uint32_t>(other->Number()); |
| 7490 | } |
| 7491 | |
| 7492 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 7493 | uint32_t UnseededNumberDictionaryShape::Hash(uint32_t key) { |
| 7494 | return ComputeIntegerHash(key, 0); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7495 | } |
| 7496 | |
| 7497 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 7498 | uint32_t UnseededNumberDictionaryShape::HashForObject(uint32_t key, |
| 7499 | Object* other) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7500 | DCHECK(other->IsNumber()); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 7501 | return ComputeIntegerHash(static_cast<uint32_t>(other->Number()), 0); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7502 | } |
| 7503 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7504 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 7505 | uint32_t SeededNumberDictionaryShape::SeededHash(uint32_t key, uint32_t seed) { |
| 7506 | return ComputeIntegerHash(key, seed); |
| 7507 | } |
| 7508 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7509 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 7510 | uint32_t SeededNumberDictionaryShape::SeededHashForObject(uint32_t key, |
| 7511 | uint32_t seed, |
| 7512 | Object* other) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7513 | DCHECK(other->IsNumber()); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 7514 | return ComputeIntegerHash(static_cast<uint32_t>(other->Number()), seed); |
| 7515 | } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7516 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7517 | |
| 7518 | Handle<Object> NumberDictionaryShape::AsHandle(Isolate* isolate, uint32_t key) { |
| 7519 | return isolate->factory()->NewNumberFromUint(key); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7520 | } |
| 7521 | |
| 7522 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7523 | bool NameDictionaryShape::IsMatch(Handle<Name> key, Object* other) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7524 | // We know that all entries in a hash table had their hash keys created. |
| 7525 | // Use that knowledge to have fast failure. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7526 | if (key->Hash() != Name::cast(other)->Hash()) return false; |
| 7527 | return key->Equals(Name::cast(other)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7528 | } |
| 7529 | |
| 7530 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7531 | uint32_t NameDictionaryShape::Hash(Handle<Name> key) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7532 | return key->Hash(); |
| 7533 | } |
| 7534 | |
| 7535 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7536 | uint32_t NameDictionaryShape::HashForObject(Handle<Name> key, Object* other) { |
| 7537 | return Name::cast(other)->Hash(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7538 | } |
| 7539 | |
| 7540 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7541 | Handle<Object> NameDictionaryShape::AsHandle(Isolate* isolate, |
| 7542 | Handle<Name> key) { |
| 7543 | DCHECK(key->IsUniqueName()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7544 | return key; |
| 7545 | } |
| 7546 | |
| 7547 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7548 | Handle<FixedArray> NameDictionary::DoGenerateNewEnumerationIndices( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7549 | Handle<NameDictionary> dictionary) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7550 | return DerivedDictionary::GenerateNewEnumerationIndices(dictionary); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7551 | } |
| 7552 | |
| 7553 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7554 | template <typename Dictionary> |
| 7555 | PropertyDetails GlobalDictionaryShape::DetailsAt(Dictionary* dict, int entry) { |
| 7556 | DCHECK(entry >= 0); // Not found is -1, which is not caught by get(). |
| 7557 | Object* raw_value = dict->ValueAt(entry); |
| 7558 | DCHECK(raw_value->IsPropertyCell()); |
| 7559 | PropertyCell* cell = PropertyCell::cast(raw_value); |
| 7560 | return cell->property_details(); |
| 7561 | } |
| 7562 | |
| 7563 | |
| 7564 | template <typename Dictionary> |
| 7565 | void GlobalDictionaryShape::DetailsAtPut(Dictionary* dict, int entry, |
| 7566 | PropertyDetails value) { |
| 7567 | DCHECK(entry >= 0); // Not found is -1, which is not caught by get(). |
| 7568 | Object* raw_value = dict->ValueAt(entry); |
| 7569 | DCHECK(raw_value->IsPropertyCell()); |
| 7570 | PropertyCell* cell = PropertyCell::cast(raw_value); |
| 7571 | cell->set_property_details(value); |
| 7572 | } |
| 7573 | |
| 7574 | |
| 7575 | template <typename Dictionary> |
| 7576 | bool GlobalDictionaryShape::IsDeleted(Dictionary* dict, int entry) { |
| 7577 | DCHECK(dict->ValueAt(entry)->IsPropertyCell()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7578 | Isolate* isolate = dict->GetIsolate(); |
| 7579 | return PropertyCell::cast(dict->ValueAt(entry))->value()->IsTheHole(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7580 | } |
| 7581 | |
| 7582 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7583 | bool ObjectHashTableShape::IsMatch(Handle<Object> key, Object* other) { |
| 7584 | return key->SameValue(other); |
| 7585 | } |
| 7586 | |
| 7587 | |
| 7588 | uint32_t ObjectHashTableShape::Hash(Handle<Object> key) { |
| 7589 | return Smi::cast(key->GetHash())->value(); |
| 7590 | } |
| 7591 | |
| 7592 | |
| 7593 | uint32_t ObjectHashTableShape::HashForObject(Handle<Object> key, |
| 7594 | Object* other) { |
| 7595 | return Smi::cast(other->GetHash())->value(); |
| 7596 | } |
| 7597 | |
| 7598 | |
| 7599 | Handle<Object> ObjectHashTableShape::AsHandle(Isolate* isolate, |
| 7600 | Handle<Object> key) { |
| 7601 | return key; |
| 7602 | } |
| 7603 | |
| 7604 | |
| 7605 | Handle<ObjectHashTable> ObjectHashTable::Shrink( |
| 7606 | Handle<ObjectHashTable> table, Handle<Object> key) { |
| 7607 | return DerivedHashTable::Shrink(table, key); |
| 7608 | } |
| 7609 | |
| 7610 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7611 | Object* OrderedHashMap::ValueAt(int entry) { |
| 7612 | return get(EntryToIndex(entry) + kValueOffset); |
| 7613 | } |
| 7614 | |
| 7615 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7616 | template <int entrysize> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7617 | bool WeakHashTableShape<entrysize>::IsMatch(Handle<Object> key, Object* other) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7618 | if (other->IsWeakCell()) other = WeakCell::cast(other)->value(); |
| 7619 | return key->IsWeakCell() ? WeakCell::cast(*key)->value() == other |
| 7620 | : *key == other; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 7621 | } |
| 7622 | |
| 7623 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7624 | template <int entrysize> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7625 | uint32_t WeakHashTableShape<entrysize>::Hash(Handle<Object> key) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7626 | intptr_t hash = |
| 7627 | key->IsWeakCell() |
| 7628 | ? reinterpret_cast<intptr_t>(WeakCell::cast(*key)->value()) |
| 7629 | : reinterpret_cast<intptr_t>(*key); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7630 | return (uint32_t)(hash & 0xFFFFFFFF); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 7631 | } |
| 7632 | |
| 7633 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7634 | template <int entrysize> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7635 | uint32_t WeakHashTableShape<entrysize>::HashForObject(Handle<Object> key, |
| 7636 | Object* other) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7637 | if (other->IsWeakCell()) other = WeakCell::cast(other)->value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7638 | intptr_t hash = reinterpret_cast<intptr_t>(other); |
| 7639 | return (uint32_t)(hash & 0xFFFFFFFF); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 7640 | } |
| 7641 | |
| 7642 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7643 | template <int entrysize> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7644 | Handle<Object> WeakHashTableShape<entrysize>::AsHandle(Isolate* isolate, |
| 7645 | Handle<Object> key) { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 7646 | return key; |
| 7647 | } |
| 7648 | |
| 7649 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7650 | bool ScopeInfo::IsAsmModule() { return AsmModuleField::decode(Flags()); } |
| 7651 | |
| 7652 | |
| 7653 | bool ScopeInfo::IsAsmFunction() { return AsmFunctionField::decode(Flags()); } |
| 7654 | |
| 7655 | |
| 7656 | bool ScopeInfo::HasSimpleParameters() { |
| 7657 | return HasSimpleParametersField::decode(Flags()); |
| 7658 | } |
| 7659 | |
| 7660 | |
| 7661 | #define SCOPE_INFO_FIELD_ACCESSORS(name) \ |
| 7662 | void ScopeInfo::Set##name(int value) { set(k##name, Smi::FromInt(value)); } \ |
| 7663 | int ScopeInfo::name() { \ |
| 7664 | if (length() > 0) { \ |
| 7665 | return Smi::cast(get(k##name))->value(); \ |
| 7666 | } else { \ |
| 7667 | return 0; \ |
| 7668 | } \ |
| 7669 | } |
| 7670 | FOR_EACH_SCOPE_INFO_NUMERIC_FIELD(SCOPE_INFO_FIELD_ACCESSORS) |
| 7671 | #undef SCOPE_INFO_FIELD_ACCESSORS |
| 7672 | |
| 7673 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7674 | void Map::ClearCodeCache(Heap* heap) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7675 | // No write barrier is needed since empty_fixed_array is not in new space. |
| 7676 | // Please note this function is used during marking: |
| 7677 | // - MarkCompactCollector::MarkUnmarkedObject |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7678 | // - IncrementalMarking::Step |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7679 | WRITE_FIELD(this, kCodeCacheOffset, heap->empty_fixed_array()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7680 | } |
| 7681 | |
| 7682 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 7683 | int Map::SlackForArraySize(int old_size, int size_limit) { |
| 7684 | const int max_slack = size_limit - old_size; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7685 | CHECK_LE(0, max_slack); |
| 7686 | if (old_size < 4) { |
| 7687 | DCHECK_LE(1, max_slack); |
| 7688 | return 1; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 7689 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7690 | return Min(max_slack, old_size / 4); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7691 | } |
| 7692 | |
| 7693 | |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 7694 | void JSArray::set_length(Smi* length) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7695 | // Don't need a write barrier for a Smi. |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 7696 | set_length(static_cast<Object*>(length), SKIP_WRITE_BARRIER); |
| 7697 | } |
| 7698 | |
| 7699 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7700 | bool JSArray::SetLengthWouldNormalize(Heap* heap, uint32_t new_length) { |
| 7701 | // If the new array won't fit in a some non-trivial fraction of the max old |
| 7702 | // space size, then force it to go dictionary mode. |
| 7703 | uint32_t max_fast_array_size = |
| 7704 | static_cast<uint32_t>((heap->MaxOldGenerationSize() / kDoubleSize) / 4); |
| 7705 | return new_length >= max_fast_array_size; |
| 7706 | } |
| 7707 | |
| 7708 | |
| 7709 | bool JSArray::AllowsSetLength() { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7710 | bool result = elements()->IsFixedArray() || elements()->IsFixedDoubleArray(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7711 | DCHECK(result == !HasFixedTypedArrayElements()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7712 | return result; |
| 7713 | } |
| 7714 | |
| 7715 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7716 | void JSArray::SetContent(Handle<JSArray> array, |
| 7717 | Handle<FixedArrayBase> storage) { |
| 7718 | EnsureCanContainElements(array, storage, storage->length(), |
| 7719 | ALLOW_COPIED_DOUBLE_ELEMENTS); |
| 7720 | |
| 7721 | DCHECK((storage->map() == array->GetHeap()->fixed_double_array_map() && |
| 7722 | IsFastDoubleElementsKind(array->GetElementsKind())) || |
| 7723 | ((storage->map() != array->GetHeap()->fixed_double_array_map()) && |
| 7724 | (IsFastObjectElementsKind(array->GetElementsKind()) || |
| 7725 | (IsFastSmiElementsKind(array->GetElementsKind()) && |
| 7726 | Handle<FixedArray>::cast(storage)->ContainsOnlySmisOrHoles())))); |
| 7727 | array->set_elements(*storage); |
| 7728 | array->set_length(Smi::FromInt(storage->length())); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7729 | } |
| 7730 | |
| 7731 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7732 | bool JSArray::HasArrayPrototype(Isolate* isolate) { |
| 7733 | return map()->prototype() == *isolate->initial_array_prototype(); |
| 7734 | } |
| 7735 | |
| 7736 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7737 | int TypeFeedbackInfo::ic_total_count() { |
| 7738 | int current = Smi::cast(READ_FIELD(this, kStorage1Offset))->value(); |
| 7739 | return ICTotalCountField::decode(current); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7740 | } |
| 7741 | |
| 7742 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7743 | void TypeFeedbackInfo::set_ic_total_count(int count) { |
| 7744 | int value = Smi::cast(READ_FIELD(this, kStorage1Offset))->value(); |
| 7745 | value = ICTotalCountField::update(value, |
| 7746 | ICTotalCountField::decode(count)); |
| 7747 | WRITE_FIELD(this, kStorage1Offset, Smi::FromInt(value)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7748 | } |
| 7749 | |
| 7750 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7751 | int TypeFeedbackInfo::ic_with_type_info_count() { |
| 7752 | int current = Smi::cast(READ_FIELD(this, kStorage2Offset))->value(); |
| 7753 | return ICsWithTypeInfoCountField::decode(current); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7754 | } |
| 7755 | |
| 7756 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7757 | void TypeFeedbackInfo::change_ic_with_type_info_count(int delta) { |
| 7758 | if (delta == 0) return; |
| 7759 | int value = Smi::cast(READ_FIELD(this, kStorage2Offset))->value(); |
| 7760 | int new_count = ICsWithTypeInfoCountField::decode(value) + delta; |
| 7761 | // We can get negative count here when the type-feedback info is |
| 7762 | // shared between two code objects. The can only happen when |
| 7763 | // the debugger made a shallow copy of code object (see Heap::CopyCode). |
| 7764 | // Since we do not optimize when the debugger is active, we can skip |
| 7765 | // this counter update. |
| 7766 | if (new_count >= 0) { |
| 7767 | new_count &= ICsWithTypeInfoCountField::kMask; |
| 7768 | value = ICsWithTypeInfoCountField::update(value, new_count); |
| 7769 | WRITE_FIELD(this, kStorage2Offset, Smi::FromInt(value)); |
| 7770 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7771 | } |
| 7772 | |
| 7773 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7774 | int TypeFeedbackInfo::ic_generic_count() { |
| 7775 | return Smi::cast(READ_FIELD(this, kStorage3Offset))->value(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7776 | } |
| 7777 | |
| 7778 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7779 | void TypeFeedbackInfo::change_ic_generic_count(int delta) { |
| 7780 | if (delta == 0) return; |
| 7781 | int new_count = ic_generic_count() + delta; |
| 7782 | if (new_count >= 0) { |
| 7783 | new_count &= ~Smi::kMinValue; |
| 7784 | WRITE_FIELD(this, kStorage3Offset, Smi::FromInt(new_count)); |
| 7785 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7786 | } |
| 7787 | |
| 7788 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7789 | void TypeFeedbackInfo::initialize_storage() { |
| 7790 | WRITE_FIELD(this, kStorage1Offset, Smi::FromInt(0)); |
| 7791 | WRITE_FIELD(this, kStorage2Offset, Smi::FromInt(0)); |
| 7792 | WRITE_FIELD(this, kStorage3Offset, Smi::FromInt(0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7793 | } |
| 7794 | |
| 7795 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7796 | void TypeFeedbackInfo::change_own_type_change_checksum() { |
| 7797 | int value = Smi::cast(READ_FIELD(this, kStorage1Offset))->value(); |
| 7798 | int checksum = OwnTypeChangeChecksum::decode(value); |
| 7799 | checksum = (checksum + 1) % (1 << kTypeChangeChecksumBits); |
| 7800 | value = OwnTypeChangeChecksum::update(value, checksum); |
| 7801 | // Ensure packed bit field is in Smi range. |
| 7802 | if (value > Smi::kMaxValue) value |= Smi::kMinValue; |
| 7803 | if (value < Smi::kMinValue) value &= ~Smi::kMinValue; |
| 7804 | WRITE_FIELD(this, kStorage1Offset, Smi::FromInt(value)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7805 | } |
| 7806 | |
| 7807 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7808 | void TypeFeedbackInfo::set_inlined_type_change_checksum(int checksum) { |
| 7809 | int value = Smi::cast(READ_FIELD(this, kStorage2Offset))->value(); |
| 7810 | int mask = (1 << kTypeChangeChecksumBits) - 1; |
| 7811 | value = InlinedTypeChangeChecksum::update(value, checksum & mask); |
| 7812 | // Ensure packed bit field is in Smi range. |
| 7813 | if (value > Smi::kMaxValue) value |= Smi::kMinValue; |
| 7814 | if (value < Smi::kMinValue) value &= ~Smi::kMinValue; |
| 7815 | WRITE_FIELD(this, kStorage2Offset, Smi::FromInt(value)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7816 | } |
| 7817 | |
| 7818 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7819 | int TypeFeedbackInfo::own_type_change_checksum() { |
| 7820 | int value = Smi::cast(READ_FIELD(this, kStorage1Offset))->value(); |
| 7821 | return OwnTypeChangeChecksum::decode(value); |
| 7822 | } |
| 7823 | |
| 7824 | |
| 7825 | bool TypeFeedbackInfo::matches_inlined_type_change_checksum(int checksum) { |
| 7826 | int value = Smi::cast(READ_FIELD(this, kStorage2Offset))->value(); |
| 7827 | int mask = (1 << kTypeChangeChecksumBits) - 1; |
| 7828 | return InlinedTypeChangeChecksum::decode(value) == (checksum & mask); |
| 7829 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7830 | |
| 7831 | |
| 7832 | SMI_ACCESSORS(AliasedArgumentsEntry, aliased_context_slot, kAliasedContextSlot) |
| 7833 | |
| 7834 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7835 | Relocatable::Relocatable(Isolate* isolate) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7836 | isolate_ = isolate; |
| 7837 | prev_ = isolate->relocatable_top(); |
| 7838 | isolate->set_relocatable_top(this); |
| 7839 | } |
| 7840 | |
| 7841 | |
| 7842 | Relocatable::~Relocatable() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7843 | DCHECK_EQ(isolate_->relocatable_top(), this); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 7844 | isolate_->set_relocatable_top(prev_); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7845 | } |
| 7846 | |
| 7847 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7848 | template<class Derived, class TableType> |
| 7849 | Object* OrderedHashTableIterator<Derived, TableType>::CurrentKey() { |
| 7850 | TableType* table(TableType::cast(this->table())); |
| 7851 | int index = Smi::cast(this->index())->value(); |
| 7852 | Object* key = table->KeyAt(index); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7853 | DCHECK(!key->IsTheHole(table->GetIsolate())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7854 | return key; |
| 7855 | } |
| 7856 | |
| 7857 | |
| 7858 | void JSSetIterator::PopulateValueArray(FixedArray* array) { |
| 7859 | array->set(0, CurrentKey()); |
| 7860 | } |
| 7861 | |
| 7862 | |
| 7863 | void JSMapIterator::PopulateValueArray(FixedArray* array) { |
| 7864 | array->set(0, CurrentKey()); |
| 7865 | array->set(1, CurrentValue()); |
| 7866 | } |
| 7867 | |
| 7868 | |
| 7869 | Object* JSMapIterator::CurrentValue() { |
| 7870 | OrderedHashMap* table(OrderedHashMap::cast(this->table())); |
| 7871 | int index = Smi::cast(this->index())->value(); |
| 7872 | Object* value = table->ValueAt(index); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 7873 | DCHECK(!value->IsTheHole(table->GetIsolate())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7874 | return value; |
| 7875 | } |
| 7876 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 7877 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7878 | String::SubStringRange::SubStringRange(String* string, int first, int length) |
| 7879 | : string_(string), |
| 7880 | first_(first), |
| 7881 | length_(length == -1 ? string->length() : length) {} |
| 7882 | |
| 7883 | |
| 7884 | class String::SubStringRange::iterator final { |
| 7885 | public: |
| 7886 | typedef std::forward_iterator_tag iterator_category; |
| 7887 | typedef int difference_type; |
| 7888 | typedef uc16 value_type; |
| 7889 | typedef uc16* pointer; |
| 7890 | typedef uc16& reference; |
| 7891 | |
| 7892 | iterator(const iterator& other) |
| 7893 | : content_(other.content_), offset_(other.offset_) {} |
| 7894 | |
| 7895 | uc16 operator*() { return content_.Get(offset_); } |
| 7896 | bool operator==(const iterator& other) const { |
| 7897 | return content_.UsesSameString(other.content_) && offset_ == other.offset_; |
| 7898 | } |
| 7899 | bool operator!=(const iterator& other) const { |
| 7900 | return !content_.UsesSameString(other.content_) || offset_ != other.offset_; |
| 7901 | } |
| 7902 | iterator& operator++() { |
| 7903 | ++offset_; |
| 7904 | return *this; |
| 7905 | } |
| 7906 | iterator operator++(int); |
| 7907 | |
| 7908 | private: |
| 7909 | friend class String; |
| 7910 | iterator(String* from, int offset) |
| 7911 | : content_(from->GetFlatContent()), offset_(offset) {} |
| 7912 | String::FlatContent content_; |
| 7913 | int offset_; |
| 7914 | }; |
| 7915 | |
| 7916 | |
| 7917 | String::SubStringRange::iterator String::SubStringRange::begin() { |
| 7918 | return String::SubStringRange::iterator(string_, first_); |
| 7919 | } |
| 7920 | |
| 7921 | |
| 7922 | String::SubStringRange::iterator String::SubStringRange::end() { |
| 7923 | return String::SubStringRange::iterator(string_, first_ + length_); |
| 7924 | } |
| 7925 | |
| 7926 | |
| 7927 | // Predictably converts HeapObject* or Address to uint32 by calculating |
| 7928 | // offset of the address in respective MemoryChunk. |
| 7929 | static inline uint32_t ObjectAddressForHashing(void* object) { |
| 7930 | uint32_t value = static_cast<uint32_t>(reinterpret_cast<uintptr_t>(object)); |
| 7931 | return value & MemoryChunk::kAlignmentMask; |
| 7932 | } |
| 7933 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7934 | static inline Handle<Object> MakeEntryPair(Isolate* isolate, uint32_t index, |
| 7935 | Handle<Object> value) { |
| 7936 | Handle<Object> key = isolate->factory()->Uint32ToString(index); |
| 7937 | Handle<FixedArray> entry_storage = |
| 7938 | isolate->factory()->NewUninitializedFixedArray(2); |
| 7939 | { |
| 7940 | entry_storage->set(0, *key, SKIP_WRITE_BARRIER); |
| 7941 | entry_storage->set(1, *value, SKIP_WRITE_BARRIER); |
| 7942 | } |
| 7943 | return isolate->factory()->NewJSArrayWithElements(entry_storage, |
| 7944 | FAST_ELEMENTS, 2); |
| 7945 | } |
| 7946 | |
| 7947 | static inline Handle<Object> MakeEntryPair(Isolate* isolate, Handle<Name> key, |
| 7948 | Handle<Object> value) { |
| 7949 | Handle<FixedArray> entry_storage = |
| 7950 | isolate->factory()->NewUninitializedFixedArray(2); |
| 7951 | { |
| 7952 | entry_storage->set(0, *key, SKIP_WRITE_BARRIER); |
| 7953 | entry_storage->set(1, *value, SKIP_WRITE_BARRIER); |
| 7954 | } |
| 7955 | return isolate->factory()->NewJSArrayWithElements(entry_storage, |
| 7956 | FAST_ELEMENTS, 2); |
| 7957 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7958 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7959 | #undef TYPE_CHECKER |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7960 | #undef CAST_ACCESSOR |
| 7961 | #undef INT_ACCESSORS |
Ben Murdoch | 85b7179 | 2012-04-11 18:30:58 +0100 | [diff] [blame] | 7962 | #undef ACCESSORS |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7963 | #undef SMI_ACCESSORS |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7964 | #undef SYNCHRONIZED_SMI_ACCESSORS |
| 7965 | #undef NOBARRIER_SMI_ACCESSORS |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7966 | #undef BOOL_GETTER |
| 7967 | #undef BOOL_ACCESSORS |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7968 | #undef FIELD_ADDR |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7969 | #undef FIELD_ADDR_CONST |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7970 | #undef READ_FIELD |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7971 | #undef NOBARRIER_READ_FIELD |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7972 | #undef WRITE_FIELD |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7973 | #undef NOBARRIER_WRITE_FIELD |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7974 | #undef WRITE_BARRIER |
| 7975 | #undef CONDITIONAL_WRITE_BARRIER |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 7976 | #undef READ_DOUBLE_FIELD |
| 7977 | #undef WRITE_DOUBLE_FIELD |
| 7978 | #undef READ_INT_FIELD |
| 7979 | #undef WRITE_INT_FIELD |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7980 | #undef READ_INTPTR_FIELD |
| 7981 | #undef WRITE_INTPTR_FIELD |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7982 | #undef READ_UINT8_FIELD |
| 7983 | #undef WRITE_UINT8_FIELD |
| 7984 | #undef READ_INT8_FIELD |
| 7985 | #undef WRITE_INT8_FIELD |
| 7986 | #undef READ_UINT16_FIELD |
| 7987 | #undef WRITE_UINT16_FIELD |
| 7988 | #undef READ_INT16_FIELD |
| 7989 | #undef WRITE_INT16_FIELD |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 7990 | #undef READ_UINT32_FIELD |
| 7991 | #undef WRITE_UINT32_FIELD |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7992 | #undef READ_INT32_FIELD |
| 7993 | #undef WRITE_INT32_FIELD |
| 7994 | #undef READ_FLOAT_FIELD |
| 7995 | #undef WRITE_FLOAT_FIELD |
| 7996 | #undef READ_UINT64_FIELD |
| 7997 | #undef WRITE_UINT64_FIELD |
| 7998 | #undef READ_INT64_FIELD |
| 7999 | #undef WRITE_INT64_FIELD |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8000 | #undef READ_BYTE_FIELD |
| 8001 | #undef WRITE_BYTE_FIELD |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8002 | #undef NOBARRIER_READ_BYTE_FIELD |
| 8003 | #undef NOBARRIER_WRITE_BYTE_FIELD |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8004 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8005 | } // namespace internal |
| 8006 | } // namespace v8 |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 8007 | |
| 8008 | #endif // V8_OBJECTS_INL_H_ |