Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1 | // Copyright 2011 Google Inc. All Rights Reserved. |
| 2 | |
| 3 | #ifndef ART_SRC_OBJECT_H_ |
| 4 | #define ART_SRC_OBJECT_H_ |
| 5 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 6 | #include "constants.h" |
| 7 | #include "casts.h" |
| 8 | #include "globals.h" |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 9 | #include "heap.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 10 | #include "logging.h" |
| 11 | #include "macros.h" |
| 12 | #include "offsets.h" |
| 13 | #include "stringpiece.h" |
| 14 | #include "monitor.h" |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 15 | |
| 16 | namespace art { |
| 17 | |
| 18 | class Array; |
| 19 | class Class; |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 20 | class DexCache; |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 21 | class Field; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 22 | class InterfaceEntry; |
| 23 | class Monitor; |
| 24 | class Method; |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 25 | class Object; |
Jesse Wilson | 46cdd4b | 2011-07-28 17:40:48 -0400 | [diff] [blame] | 26 | class String; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 27 | template<class T> class ObjectArray; |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 28 | template<class T> class PrimitiveArray; |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 29 | typedef PrimitiveArray<uint8_t> BooleanArray; |
| 30 | typedef PrimitiveArray<int8_t> ByteArray; |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 31 | typedef PrimitiveArray<uint16_t> CharArray; |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 32 | typedef PrimitiveArray<double> DoubleArray; |
| 33 | typedef PrimitiveArray<float> FloatArray; |
| 34 | typedef PrimitiveArray<int32_t> IntArray; |
| 35 | typedef PrimitiveArray<int64_t> LongArray; |
| 36 | typedef PrimitiveArray<int16_t> ShortArray; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 37 | |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 38 | union JValue { |
| 39 | uint8_t z; |
| 40 | int8_t b; |
| 41 | uint16_t c; |
| 42 | int16_t s; |
| 43 | int32_t i; |
| 44 | int64_t j; |
| 45 | float f; |
| 46 | double d; |
| 47 | Object* l; |
| 48 | }; |
| 49 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 50 | static const uint32_t kAccPublic = 0x0001; // class, field, method, ic |
| 51 | static const uint32_t kAccPrivate = 0x0002; // field, method, ic |
| 52 | static const uint32_t kAccProtected = 0x0004; // field, method, ic |
| 53 | static const uint32_t kAccStatic = 0x0008; // field, method, ic |
| 54 | static const uint32_t kAccFinal = 0x0010; // class, field, method, ic |
| 55 | static const uint32_t kAccSynchronized = 0x0020; // method (only allowed on natives) |
| 56 | static const uint32_t kAccSuper = 0x0020; // class (not used in Dalvik) |
| 57 | static const uint32_t kAccVolatile = 0x0040; // field |
| 58 | static const uint32_t kAccBridge = 0x0040; // method (1.5) |
| 59 | static const uint32_t kAccTransient = 0x0080; // field |
| 60 | static const uint32_t kAccVarargs = 0x0080; // method (1.5) |
| 61 | static const uint32_t kAccNative = 0x0100; // method |
| 62 | static const uint32_t kAccInterface = 0x0200; // class, ic |
| 63 | static const uint32_t kAccAbstract = 0x0400; // class, method, ic |
| 64 | static const uint32_t kAccStrict = 0x0800; // method |
| 65 | static const uint32_t kAccSynthetic = 0x1000; // field, method, ic |
| 66 | static const uint32_t kAccAnnotation = 0x2000; // class, ic (1.5) |
| 67 | static const uint32_t kAccEnum = 0x4000; // class, field, ic (1.5) |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 68 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 69 | static const uint32_t kAccMiranda = 0x8000; // method |
| 70 | |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 71 | static const uint32_t kAccJavaFlagsMask = 0xffff; // bits set from Java sources (low 16) |
| 72 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 73 | static const uint32_t kAccConstructor = 0x00010000; // method (Dalvik only) |
| 74 | static const uint32_t kAccDeclaredSynchronized = 0x00020000; // method (Dalvik only) |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 75 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 76 | /* |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 77 | * Definitions for packing refOffsets in Class. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 78 | */ |
| 79 | /* |
| 80 | * A magic value for refOffsets. Ignore the bits and walk the super |
| 81 | * chain when this is the value. |
| 82 | * [This is an unlikely "natural" value, since it would be 30 non-ref instance |
| 83 | * fields followed by 2 ref instance fields.] |
| 84 | */ |
| 85 | #define CLASS_WALK_SUPER ((unsigned int)(3)) |
| 86 | #define CLASS_SMALLEST_OFFSET (sizeof(struct Object)) |
| 87 | #define CLASS_BITS_PER_WORD (sizeof(unsigned long int) * 8) |
| 88 | #define CLASS_OFFSET_ALIGNMENT 4 |
| 89 | #define CLASS_HIGH_BIT ((unsigned int)1 << (CLASS_BITS_PER_WORD - 1)) |
| 90 | /* |
| 91 | * Given an offset, return the bit number which would encode that offset. |
| 92 | * Local use only. |
| 93 | */ |
| 94 | #define _CLASS_BIT_NUMBER_FROM_OFFSET(byteOffset) \ |
| 95 | (((unsigned int)(byteOffset) - CLASS_SMALLEST_OFFSET) / \ |
| 96 | CLASS_OFFSET_ALIGNMENT) |
| 97 | /* |
| 98 | * Is the given offset too large to be encoded? |
| 99 | */ |
| 100 | #define CLASS_CAN_ENCODE_OFFSET(byteOffset) \ |
| 101 | (_CLASS_BIT_NUMBER_FROM_OFFSET(byteOffset) < CLASS_BITS_PER_WORD) |
| 102 | /* |
| 103 | * Return a single bit, encoding the offset. |
| 104 | * Undefined if the offset is too large, as defined above. |
| 105 | */ |
| 106 | #define CLASS_BIT_FROM_OFFSET(byteOffset) \ |
| 107 | (CLASS_HIGH_BIT >> _CLASS_BIT_NUMBER_FROM_OFFSET(byteOffset)) |
| 108 | /* |
| 109 | * Return an offset, given a bit number as returned from CLZ. |
| 110 | */ |
| 111 | #define CLASS_OFFSET_FROM_CLZ(rshift) \ |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 112 | ((static_cast<int>(rshift) * CLASS_OFFSET_ALIGNMENT) + CLASS_SMALLEST_OFFSET) |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 113 | |
| 114 | |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 115 | class Object { |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 116 | public: |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 117 | static bool InstanceOf(const Object* object, const Class* klass) { |
| 118 | if (object == NULL) { |
| 119 | return false; |
| 120 | } |
| 121 | return object->InstanceOf(klass); |
| 122 | } |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 123 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 124 | Class* GetClass() const { |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 125 | DCHECK(klass_ != NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 126 | return klass_; |
| 127 | } |
| 128 | |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 129 | bool InstanceOf(const Class* klass) const; |
| 130 | |
Elliott Hughes | 04b63fd | 2011-08-16 09:40:10 -0700 | [diff] [blame] | 131 | size_t SizeOf() const; |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 132 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 133 | void MonitorEnter() { |
| 134 | monitor_->Enter(); |
| 135 | } |
| 136 | |
| 137 | void MonitorExit() { |
| 138 | monitor_->Exit(); |
| 139 | } |
| 140 | |
| 141 | void Notify() { |
| 142 | monitor_->Notify(); |
| 143 | } |
| 144 | |
| 145 | void NotifyAll() { |
| 146 | monitor_->NotifyAll(); |
| 147 | } |
| 148 | |
| 149 | void Wait() { |
| 150 | monitor_->Wait(); |
| 151 | } |
| 152 | |
| 153 | void Wait(int64_t timeout) { |
| 154 | monitor_->Wait(timeout); |
| 155 | } |
| 156 | |
| 157 | void Wait(int64_t timeout, int32_t nanos) { |
| 158 | monitor_->Wait(timeout, nanos); |
| 159 | } |
| 160 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 161 | Object* GetFieldObject(size_t field_offset) const { |
| 162 | const byte* raw_addr = reinterpret_cast<const byte*>(this) + field_offset; |
| 163 | return *reinterpret_cast<Object* const *>(raw_addr); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | void SetFieldObject(size_t offset, Object* new_value) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 167 | byte* raw_addr = reinterpret_cast<byte*>(this) + offset; |
| 168 | *reinterpret_cast<Object**>(raw_addr) = new_value; |
| 169 | // TODO: write barrier |
| 170 | } |
| 171 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 172 | uint32_t GetField32(size_t field_offset) const { |
| 173 | const byte* raw_addr = reinterpret_cast<const byte*>(this) + field_offset; |
| 174 | return *reinterpret_cast<const uint32_t*>(raw_addr); |
| 175 | } |
| 176 | |
| 177 | void SetField32(size_t offset, uint32_t new_value) { |
| 178 | byte* raw_addr = reinterpret_cast<byte*>(this) + offset; |
| 179 | *reinterpret_cast<uint32_t*>(raw_addr) = new_value; |
| 180 | } |
| 181 | |
| 182 | uint64_t GetField64(size_t field_offset) const { |
| 183 | const byte* raw_addr = reinterpret_cast<const byte*>(this) + field_offset; |
| 184 | return *reinterpret_cast<const uint64_t*>(raw_addr); |
| 185 | } |
| 186 | |
| 187 | void SetField64(size_t offset, uint64_t new_value) { |
| 188 | byte* raw_addr = reinterpret_cast<byte*>(this) + offset; |
| 189 | *reinterpret_cast<uint64_t*>(raw_addr) = new_value; |
| 190 | } |
| 191 | |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 192 | bool IsClass() const; |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 193 | |
| 194 | Class* AsClass() { |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 195 | DCHECK(IsClass()); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 196 | return down_cast<Class*>(this); |
| 197 | } |
| 198 | |
| 199 | const Class* AsClass() const { |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 200 | DCHECK(IsClass()); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 201 | return down_cast<const Class*>(this); |
| 202 | } |
| 203 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 204 | bool IsClassClass() const; |
| 205 | |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 206 | bool IsObjectArray() const; |
| 207 | |
| 208 | template<class T> |
| 209 | ObjectArray<T>* AsObjectArray() { |
| 210 | DCHECK(IsObjectArray()); |
| 211 | return down_cast<ObjectArray<T>*>(this); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 212 | } |
| 213 | |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 214 | template<class T> |
| 215 | const ObjectArray<T>* AsObjectArray() const { |
| 216 | DCHECK(IsObjectArray()); |
| 217 | return down_cast<const ObjectArray<T>*>(this); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | bool IsReference() const { |
Elliott Hughes | 53b6131 | 2011-08-12 18:28:20 -0700 | [diff] [blame] | 221 | UNIMPLEMENTED(FATAL); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 222 | return true; |
| 223 | } |
| 224 | |
| 225 | bool IsWeakReference() const { |
Elliott Hughes | 53b6131 | 2011-08-12 18:28:20 -0700 | [diff] [blame] | 226 | UNIMPLEMENTED(FATAL); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 227 | return true; |
| 228 | } |
| 229 | |
| 230 | bool IsSoftReference() const { |
Elliott Hughes | 53b6131 | 2011-08-12 18:28:20 -0700 | [diff] [blame] | 231 | UNIMPLEMENTED(FATAL); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 232 | return true; |
| 233 | } |
| 234 | |
| 235 | bool IsFinalizerReference() const { |
Elliott Hughes | 53b6131 | 2011-08-12 18:28:20 -0700 | [diff] [blame] | 236 | UNIMPLEMENTED(FATAL); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 237 | return true; |
| 238 | } |
| 239 | |
| 240 | bool IsPhantomReference() const { |
Elliott Hughes | 53b6131 | 2011-08-12 18:28:20 -0700 | [diff] [blame] | 241 | UNIMPLEMENTED(FATAL); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 242 | return true; |
| 243 | } |
| 244 | |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 245 | bool IsArray() const; |
| 246 | |
| 247 | Array* AsArray() { |
| 248 | DCHECK(IsArray()); |
| 249 | return down_cast<Array*>(this); |
| 250 | } |
| 251 | |
| 252 | const Array* AsArray() const { |
| 253 | DCHECK(IsArray()); |
| 254 | return down_cast<const Array*>(this); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 255 | } |
| 256 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 257 | bool IsString() const; |
| 258 | |
| 259 | String* AsString() { |
| 260 | DCHECK(IsString()); |
| 261 | return down_cast<String*>(this); |
| 262 | } |
| 263 | |
| 264 | bool IsMethod() const; |
| 265 | |
| 266 | Method* AsMethod() { |
| 267 | DCHECK(IsMethod()); |
| 268 | return down_cast<Method*>(this); |
| 269 | } |
| 270 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 271 | const Method* AsMethod() const { |
| 272 | DCHECK(IsMethod()); |
| 273 | return down_cast<const Method*>(this); |
| 274 | } |
| 275 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 276 | bool IsField() const; |
| 277 | |
| 278 | Field* AsField() { |
| 279 | DCHECK(IsField()); |
| 280 | return down_cast<Field*>(this); |
| 281 | } |
| 282 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 283 | const Field* AsField() const { |
| 284 | DCHECK(IsField()); |
| 285 | return down_cast<const Field*>(this); |
| 286 | } |
| 287 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 288 | public: |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 289 | Class* klass_; |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 290 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 291 | Monitor* monitor_; |
| 292 | |
| 293 | private: |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 294 | DISALLOW_IMPLICIT_CONSTRUCTORS(Object); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 295 | }; |
| 296 | |
| 297 | class ObjectLock { |
| 298 | public: |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 299 | explicit ObjectLock(Object* object) : obj_(object) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 300 | CHECK(object != NULL); |
| 301 | obj_->MonitorEnter(); |
| 302 | } |
| 303 | |
| 304 | ~ObjectLock() { |
| 305 | obj_->MonitorExit(); |
| 306 | } |
| 307 | |
| 308 | void Wait(int64_t millis = 0) { |
| 309 | return obj_->Wait(millis); |
| 310 | } |
| 311 | |
| 312 | void Notify() { |
| 313 | obj_->Notify(); |
| 314 | } |
| 315 | |
| 316 | void NotifyAll() { |
| 317 | obj_->NotifyAll(); |
| 318 | } |
| 319 | |
| 320 | private: |
| 321 | Object* obj_; |
| 322 | DISALLOW_COPY_AND_ASSIGN(ObjectLock); |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 323 | }; |
| 324 | |
Jesse Wilson | 46cdd4b | 2011-07-28 17:40:48 -0400 | [diff] [blame] | 325 | class AccessibleObject : public Object { |
| 326 | private: |
| 327 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
| 328 | uint32_t java_flag_; |
| 329 | }; |
| 330 | |
| 331 | class Field : public AccessibleObject { |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 332 | public: |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 333 | Class* GetDeclaringClass() const { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 334 | DCHECK(declaring_class_ != NULL); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 335 | return declaring_class_; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 336 | } |
| 337 | |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 338 | const String* GetName() const { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 339 | DCHECK(name_ != NULL); |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 340 | return name_; |
| 341 | } |
| 342 | |
| 343 | bool IsStatic() const { |
| 344 | return (access_flags_ & kAccStatic) != 0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | char GetType() const { // TODO: return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 348 | return GetDescriptor()[0]; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 349 | } |
| 350 | |
Brian Carlstrom | ae3ac01 | 2011-07-27 01:30:28 -0700 | [diff] [blame] | 351 | const StringPiece& GetDescriptor() const { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 352 | DCHECK_NE(0, descriptor_.size()); |
Brian Carlstrom | ae3ac01 | 2011-07-27 01:30:28 -0700 | [diff] [blame] | 353 | return descriptor_; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 354 | } |
| 355 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 356 | uint32_t GetOffset() const { |
| 357 | return offset_; |
| 358 | } |
| 359 | |
| 360 | void SetOffset(size_t num_bytes) { |
| 361 | offset_ = num_bytes; |
| 362 | } |
| 363 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 364 | // field access, null object for static fields |
| 365 | bool GetBoolean(const Object* object) const; |
| 366 | void SetBoolean(Object* object, bool z) const; |
| 367 | int8_t GetByte(const Object* object) const; |
| 368 | void SetByte(Object* object, int8_t b) const; |
| 369 | uint16_t GetChar(const Object* object) const; |
| 370 | void SetChar(Object* object, uint16_t c) const; |
| 371 | uint16_t GetShort(const Object* object) const; |
| 372 | void SetShort(Object* object, uint16_t s) const; |
| 373 | int32_t GetInt(const Object* object) const; |
| 374 | void SetInt(Object* object, int32_t i) const; |
| 375 | int64_t GetLong(const Object* object) const; |
| 376 | void SetLong(Object* object, int64_t j) const; |
| 377 | float GetFloat(const Object* object) const; |
| 378 | void SetFloat(Object* object, float f) const; |
| 379 | double GetDouble(const Object* object) const; |
| 380 | void SetDouble(Object* object, double d) const; |
| 381 | Object* GetObject(const Object* object) const; |
| 382 | void SetObject(Object* object, Object* l) const; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 383 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 384 | public: // TODO: private |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 385 | |
| 386 | // private implemention of field access using raw data |
| 387 | uint32_t Get32(const Object* object) const; |
| 388 | void Set32(Object* object, uint32_t new_value) const; |
| 389 | uint64_t Get64(const Object* object) const; |
| 390 | void Set64(Object* object, uint64_t new_value) const; |
| 391 | Object* GetObj(const Object* object) const; |
| 392 | void SetObj(Object* object, Object* new_value) const; |
| 393 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 394 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
| 395 | // The class in which this field is declared. |
| 396 | Class* declaring_class_; |
| 397 | Object* generic_type_; |
| 398 | uint32_t generic_types_are_initialized_; |
| 399 | String* name_; |
| 400 | uint32_t offset_; |
| 401 | Class* type_; |
| 402 | |
| 403 | // e.g. "I", "[C", "Landroid/os/Debug;" |
| 404 | StringPiece descriptor_; |
| 405 | |
| 406 | uint32_t access_flags_; |
| 407 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 408 | private: |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 409 | DISALLOW_IMPLICIT_CONSTRUCTORS(Field); |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 410 | }; |
| 411 | |
Jesse Wilson | 46cdd4b | 2011-07-28 17:40:48 -0400 | [diff] [blame] | 412 | class Method : public AccessibleObject { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 413 | public: |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 414 | // An function that invokes a method with an array of its arguments. |
| 415 | typedef void InvokeStub(Method* method, |
| 416 | Object* obj, |
| 417 | Thread* thread, |
| 418 | byte* args, |
| 419 | JValue* result); |
| 420 | |
Brian Carlstrom | ae3ac01 | 2011-07-27 01:30:28 -0700 | [diff] [blame] | 421 | // Returns the method name, e.g. "<init>" or "eatLunch" |
Jesse Wilson | f7e85a5 | 2011-08-01 18:45:58 -0700 | [diff] [blame] | 422 | const String* GetName() const { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 423 | DCHECK(name_ != NULL); |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 424 | return name_; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 425 | } |
| 426 | |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 427 | const String* GetSignature() const { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 428 | DCHECK(signature_ != NULL); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 429 | return signature_; |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 430 | } |
| 431 | |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 432 | Class* GetDeclaringClass() const { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 433 | DCHECK(declaring_class_ != NULL); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 434 | return declaring_class_; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 435 | } |
| 436 | |
Ian Rogers | cdd1d2d | 2011-08-18 09:58:17 -0700 | [diff] [blame] | 437 | static MemberOffset DeclaringClassOffset() { |
| 438 | return MemberOffset(OFFSETOF_MEMBER(Method, declaring_class_)); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 439 | } |
| 440 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 441 | // Returns true if the method is declared public. |
| 442 | bool IsPublic() const { |
| 443 | return (access_flags_ & kAccPublic) != 0; |
| 444 | } |
| 445 | |
| 446 | // Returns true if the method is declared private. |
| 447 | bool IsPrivate() const { |
| 448 | return (access_flags_ & kAccPrivate) != 0; |
| 449 | } |
| 450 | |
| 451 | // Returns true if the method is declared static. |
| 452 | bool IsStatic() const { |
| 453 | return (access_flags_ & kAccStatic) != 0; |
| 454 | } |
| 455 | |
| 456 | // Returns true if the method is declared synchronized. |
| 457 | bool IsSynchronized() const { |
| 458 | uint32_t synchonized = kAccSynchronized | kAccDeclaredSynchronized; |
| 459 | return (access_flags_ & synchonized) != 0; |
| 460 | } |
| 461 | |
| 462 | // Returns true if the method is declared final. |
| 463 | bool IsFinal() const { |
| 464 | return (access_flags_ & kAccFinal) != 0; |
| 465 | } |
| 466 | |
| 467 | // Returns true if the method is declared native. |
| 468 | bool IsNative() const { |
| 469 | return (access_flags_ & kAccNative) != 0; |
| 470 | } |
| 471 | |
| 472 | // Returns true if the method is declared abstract. |
| 473 | bool IsAbstract() const { |
| 474 | return (access_flags_ & kAccAbstract) != 0; |
| 475 | } |
| 476 | |
| 477 | bool IsSynthetic() const { |
| 478 | return (access_flags_ & kAccSynthetic) != 0; |
| 479 | } |
| 480 | |
| 481 | // Number of argument registers required by the prototype. |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 482 | uint32_t NumArgRegisters() const; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 483 | |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 484 | // Number of argument bytes required for densely packing the |
| 485 | // arguments into an array of arguments. |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 486 | size_t NumArgArrayBytes() const; |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 487 | |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 488 | // Converts a native PC to a virtual PC. TODO: this is a no-op |
| 489 | // until we associate a PC mapping table with each method. |
| 490 | uintptr_t ToDexPC(const uintptr_t pc) const { |
| 491 | return pc; |
| 492 | } |
| 493 | |
| 494 | // Converts a virtual PC to a native PC. TODO: this is a no-op |
| 495 | // until we associate a PC mapping table with each method. |
| 496 | uintptr_t ToNativePC(const uintptr_t pc) const { |
| 497 | return pc; |
| 498 | } |
| 499 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 500 | public: // TODO: private |
Jesse Wilson | 46cdd4b | 2011-07-28 17:40:48 -0400 | [diff] [blame] | 501 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 502 | // the class we are a part of |
| 503 | Class* declaring_class_; |
Jesse Wilson | 46cdd4b | 2011-07-28 17:40:48 -0400 | [diff] [blame] | 504 | ObjectArray<Class>* java_exception_types_; |
| 505 | Object* java_formal_type_parameters_; |
| 506 | Object* java_generic_exception_types_; |
| 507 | Object* java_generic_parameter_types_; |
| 508 | Object* java_generic_return_type_; |
| 509 | Class* java_return_type_; |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 510 | String* name_; |
Jesse Wilson | 46cdd4b | 2011-07-28 17:40:48 -0400 | [diff] [blame] | 511 | ObjectArray<Class>* java_parameter_types_; |
| 512 | uint32_t java_generic_types_are_initialized_; |
| 513 | uint32_t java_slot_; |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 514 | |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 515 | const StringPiece& GetShorty() const { |
| 516 | return shorty_; |
| 517 | } |
| 518 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 519 | bool IsReturnAReference() const { |
| 520 | return (shorty_[0] == 'L') || (shorty_[0] == '['); |
| 521 | } |
| 522 | |
| 523 | bool IsReturnAFloatOrDouble() const { |
| 524 | return (shorty_[0] == 'F') || (shorty_[0] == 'D'); |
| 525 | } |
| 526 | |
| 527 | bool IsReturnAFloat() const { |
| 528 | return shorty_[0] == 'F'; |
| 529 | } |
| 530 | |
| 531 | bool IsReturnADouble() const { |
| 532 | return shorty_[0] == 'D'; |
| 533 | } |
| 534 | |
| 535 | bool IsReturnALong() const { |
| 536 | return shorty_[0] == 'J'; |
| 537 | } |
| 538 | |
Ian Rogers | 45a76cb | 2011-07-21 22:00:15 -0700 | [diff] [blame] | 539 | bool IsReturnVoid() const { |
| 540 | return shorty_[0] == 'V'; |
| 541 | } |
| 542 | |
Shih-wei Liao | 5381cf9 | 2011-07-27 00:28:04 -0700 | [diff] [blame] | 543 | // "Args" may refer to any of the 3 levels of "Args." |
| 544 | // To avoid confusion, our code will denote which "Args" clearly: |
| 545 | // 1. UserArgs: Args that a user see. |
| 546 | // 2. Args: Logical JVM-level Args. E.g., the first in Args will be the |
| 547 | // receiver. |
| 548 | // 3. CConvArgs: Calling Convention Args, which is physical-level Args. |
| 549 | // E.g., the first in Args is Method* for both static and non-static |
| 550 | // methods. And CConvArgs doesn't deal with the receiver because |
| 551 | // receiver is hardwired in an implicit register, so CConvArgs doesn't |
| 552 | // need to deal with it. |
| 553 | // |
| 554 | // The number of Args that should be supplied to this method |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 555 | size_t NumArgs() const { |
Shih-wei Liao | 5381cf9 | 2011-07-27 00:28:04 -0700 | [diff] [blame] | 556 | // "1 +" because the first in Args is the receiver. |
| 557 | // "- 1" because we don't count the return type. |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 558 | return (IsStatic() ? 0 : 1) + shorty_.length() - 1; |
| 559 | } |
| 560 | |
| 561 | // The number of reference arguments to this method including implicit this |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 562 | // pointer. |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 563 | size_t NumReferenceArgs() const; |
| 564 | |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 565 | // The number of long or double arguments. |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 566 | size_t NumLongOrDoubleArgs() const; |
| 567 | |
| 568 | // The number of reference arguments to this method before the given |
| 569 | // parameter index |
| 570 | size_t NumReferenceArgsBefore(unsigned int param) const; |
| 571 | |
| 572 | // Is the given method parameter a reference? |
| 573 | bool IsParamAReference(unsigned int param) const; |
| 574 | |
| 575 | // Is the given method parameter a long or double? |
| 576 | bool IsParamALongOrDouble(unsigned int param) const; |
| 577 | |
Ian Rogers | df20fe0 | 2011-07-20 20:34:16 -0700 | [diff] [blame] | 578 | // Size in bytes of the given parameter |
| 579 | size_t ParamSize(unsigned int param) const; |
| 580 | |
| 581 | // Size in bytes of the return value |
| 582 | size_t ReturnSize() const; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 583 | |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 584 | bool HasCode() { |
| 585 | return code_ != NULL; |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 586 | } |
| 587 | |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 588 | void SetCode(const byte* compiled_code, |
| 589 | size_t byte_count, |
| 590 | InstructionSet set) { |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 591 | // Copy the code into an executable region. |
| 592 | code_instruction_set_ = set; |
| 593 | code_area_.reset(MemMap::Map(byte_count, |
| 594 | PROT_READ | PROT_WRITE | PROT_EXEC)); |
Elliott Hughes | edcc09c | 2011-08-21 18:47:05 -0700 | [diff] [blame] | 595 | CHECK(code_area_.get()); |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 596 | byte* code = code_area_->GetAddress(); |
| 597 | memcpy(code, compiled_code, byte_count); |
| 598 | __builtin___clear_cache(code, code + byte_count); |
| 599 | |
| 600 | uintptr_t address = reinterpret_cast<uintptr_t>(code); |
| 601 | if (code_instruction_set_ == kThumb2) { |
| 602 | // Set the low-order bit so a BLX will switch to Thumb mode |
| 603 | address |= 0x1; |
| 604 | } |
| 605 | code_ = reinterpret_cast<void*>(address); |
| 606 | } |
| 607 | |
| 608 | void SetFrameSize(uint32_t frame_size) { |
| 609 | frame_size_ = frame_size; |
| 610 | } |
| 611 | |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 612 | void SetPcOffset(uint32_t pc_offset) { |
| 613 | pc_offset_ = pc_offset; |
| 614 | } |
| 615 | |
| 616 | size_t GetFrameSize() const { |
| 617 | return frame_size_; |
| 618 | } |
| 619 | |
| 620 | size_t GetPcOffset() const { |
| 621 | return pc_offset_; |
| 622 | } |
| 623 | |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 624 | void SetCoreSpillMask(uint32_t core_spill_mask) { |
| 625 | core_spill_mask_ = core_spill_mask; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 626 | } |
| 627 | |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 628 | static size_t GetCodeOffset() { |
| 629 | return OFFSETOF_MEMBER(Method, code_); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 630 | } |
| 631 | |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 632 | void SetFpSpillMask(uint32_t fp_spill_mask) { |
| 633 | fp_spill_mask_ = fp_spill_mask; |
| 634 | } |
| 635 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 636 | void RegisterNative(const void* native_method) { |
| 637 | native_method_ = native_method; |
| 638 | } |
| 639 | |
| 640 | static MemberOffset NativeMethodOffset() { |
| 641 | return MemberOffset(OFFSETOF_MEMBER(Method, native_method_)); |
| 642 | } |
| 643 | |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 644 | InvokeStub* GetInvokeStub() const { |
| 645 | return invoke_stub_; |
| 646 | } |
| 647 | |
| 648 | void SetInvokeStub(const InvokeStub* invoke_stub) { |
| 649 | invoke_stub_ = invoke_stub; |
| 650 | } |
| 651 | |
| 652 | static size_t GetInvokeStubOffset() { |
| 653 | return OFFSETOF_MEMBER(Method, invoke_stub_); |
| 654 | } |
| 655 | |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 656 | bool HasSameNameAndDescriptor(const Method* that) const; |
| 657 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 658 | public: // TODO: private/const |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 659 | // access flags; low 16 bits are defined by spec (could be uint16_t?) |
| 660 | uint32_t access_flags_; |
| 661 | |
| 662 | // For concrete virtual methods, this is the offset of the method |
| 663 | // in "vtable". |
| 664 | // |
| 665 | // For abstract methods in an interface class, this is the offset |
| 666 | // of the method in "iftable[n]->methodIndexArray". |
| 667 | uint16_t method_index_; |
| 668 | |
| 669 | // Method bounds; not needed for an abstract method. |
| 670 | // |
| 671 | // For a native method, we compute the size of the argument list, and |
| 672 | // set "insSize" and "registerSize" equal to it. |
| 673 | uint16_t num_registers_; // ins + locals |
| 674 | uint16_t num_outs_; |
| 675 | uint16_t num_ins_; |
| 676 | |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 677 | // Total size in bytes of the frame |
| 678 | uint32_t frame_size_; |
| 679 | |
| 680 | // Architecture-dependent register spill masks |
| 681 | uint32_t core_spill_mask_; |
| 682 | uint32_t fp_spill_mask_; |
| 683 | |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 684 | // The method descriptor. This represents the parameters a method |
| 685 | // takes and value it returns. This string is a list of the type |
| 686 | // descriptors for the parameters enclosed in parenthesis followed |
| 687 | // by the return type descriptor. For example, for the method |
| 688 | // |
| 689 | // Object mymethod(int i, double d, Thread t) |
| 690 | // |
| 691 | // the method descriptor would be |
| 692 | // |
| 693 | // (IDLjava/lang/Thread;)Ljava/lang/Object; |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 694 | String* signature_; |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 695 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 696 | // Method prototype descriptor string (return and argument types). |
| 697 | uint32_t proto_idx_; |
| 698 | |
Shih-wei Liao | 2fb9753 | 2011-08-11 16:17:23 -0700 | [diff] [blame] | 699 | // Offset to the CodeItem. |
| 700 | uint32_t code_off_; |
| 701 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 702 | // The short-form method descriptor string. |
| 703 | StringPiece shorty_; |
| 704 | |
Brian Carlstrom | c4fa2c0 | 2011-08-21 03:00:12 -0700 | [diff] [blame] | 705 | // short cuts to declaring_class_->dex_cache_ members for fast compiled code access |
| 706 | ObjectArray<String>* dex_cache_strings_; |
| 707 | ObjectArray<Class>* dex_cache_classes_; |
| 708 | ObjectArray<Method>* dex_cache_methods_; |
| 709 | ObjectArray<Field>* dex_cache_fields_; |
| 710 | |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 711 | private: |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 712 | // Compiled code associated with this method |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 713 | scoped_ptr<MemMap> code_area_; |
| 714 | void* code_; |
| 715 | // Instruction set of the coompiled code |
| 716 | InstructionSet code_instruction_set_; |
| 717 | |
| 718 | // Size in bytes of compiled code associated with this method |
| 719 | const uint32_t code_size_; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 720 | |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 721 | // Offset of PC within compiled code (in bytes) |
| 722 | uint32_t pc_offset_; |
| 723 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 724 | // Any native method registered with this method |
| 725 | const void* native_method_; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 726 | |
Carl Shapiro | 9b9ba28 | 2011-08-14 15:30:39 -0700 | [diff] [blame] | 727 | // Native invocation stub entry point. |
| 728 | const InvokeStub* invoke_stub_; |
| 729 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 730 | DISALLOW_IMPLICIT_CONSTRUCTORS(Method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 731 | }; |
| 732 | |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 733 | class Array : public Object { |
| 734 | public: |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 735 | static size_t SizeOf(size_t component_count, |
| 736 | size_t component_size) { |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 737 | return sizeof(Array) + component_count * component_size; |
| 738 | } |
Elliott Hughes | 04b63fd | 2011-08-16 09:40:10 -0700 | [diff] [blame] | 739 | |
Elliott Hughes | 68f4fa0 | 2011-08-21 10:46:59 -0700 | [diff] [blame] | 740 | // A convenience for code that doesn't know the component size, |
| 741 | // and doesn't want to have to work it out itself. |
| 742 | static Array* Alloc(Class* array_class, size_t component_count); |
| 743 | |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 744 | static Array* Alloc(Class* array_class, |
| 745 | size_t component_count, |
| 746 | size_t component_size) { |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 747 | size_t size = SizeOf(component_count, component_size); |
| 748 | Array* array = down_cast<Array*>(Heap::AllocObject(array_class, size)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 749 | if (array != NULL) { |
| 750 | array->SetLength(component_count); |
| 751 | } |
| 752 | return array; |
| 753 | } |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 754 | |
Elliott Hughes | 04b63fd | 2011-08-16 09:40:10 -0700 | [diff] [blame] | 755 | size_t SizeOf() const; |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 756 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 757 | int32_t GetLength() const { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 758 | return length_; |
| 759 | } |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 760 | |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 761 | void SetLength(uint32_t length) { |
| 762 | length_ = length; |
| 763 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 764 | |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 765 | static MemberOffset LengthOffset() { |
| 766 | return MemberOffset(OFFSETOF_MEMBER(Array, length_)); |
| 767 | } |
| 768 | |
| 769 | static MemberOffset DataOffset() { |
| 770 | return MemberOffset(OFFSETOF_MEMBER(Array, first_element_)); |
| 771 | } |
| 772 | |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 773 | protected: |
| 774 | bool IsValidIndex(int32_t index) const { |
| 775 | if (index < 0 || index >= length_) { |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 776 | Thread* self = Thread::Current(); |
| 777 | self->ThrowNewException("Ljava/lang/ArrayIndexOutOfBoundsException;", |
| 778 | "length=%i; index=%i", length_, index); |
Elliott Hughes | 710a0cb | 2011-08-16 14:32:37 -0700 | [diff] [blame] | 779 | return false; |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 780 | } |
| 781 | return true; |
| 782 | } |
| 783 | |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 784 | private: |
| 785 | // The number of array elements. |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 786 | int32_t length_; |
Jesse Wilson | df4189c | 2011-08-09 17:10:28 -0400 | [diff] [blame] | 787 | // Padding to ensure the first member defined by a subclass begins on a 8-byte boundary |
| 788 | int32_t padding_; |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 789 | // Marker for the data (used by generated code) |
| 790 | uint32_t first_element_[0]; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 791 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 792 | DISALLOW_IMPLICIT_CONSTRUCTORS(Array); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 793 | }; |
| 794 | |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 795 | template<class T> |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 796 | class ObjectArray : public Array { |
| 797 | public: |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 798 | static ObjectArray<T>* Alloc(Class* object_array_class, |
| 799 | size_t length) { |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 800 | return Array::Alloc(object_array_class, length, sizeof(uint32_t))->AsObjectArray<T>(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 801 | } |
| 802 | |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 803 | T* const * GetData() const { |
| 804 | return reinterpret_cast<T* const *>(&elements_); |
| 805 | } |
Jesse Wilson | df4189c | 2011-08-09 17:10:28 -0400 | [diff] [blame] | 806 | |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 807 | T** GetData() { |
| 808 | return reinterpret_cast<T**>(&elements_); |
| 809 | } |
Jesse Wilson | df4189c | 2011-08-09 17:10:28 -0400 | [diff] [blame] | 810 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 811 | T* Get(int32_t i) const { |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 812 | if (!IsValidIndex(i)) { |
| 813 | return NULL; |
| 814 | } |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 815 | return GetData()[i]; |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 816 | } |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 817 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 818 | void Set(int32_t i, T* object) { |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 819 | if (IsValidIndex(i)) { |
| 820 | // TODO: ArrayStoreException |
| 821 | GetData()[i] = object; // TODO: write barrier |
| 822 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 823 | } |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 824 | |
| 825 | static void Copy(ObjectArray<T>* src, int src_pos, |
| 826 | ObjectArray<T>* dst, int dst_pos, |
| 827 | size_t length) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 828 | for (size_t i = 0; i < length; i++) { |
| 829 | dst->Set(dst_pos + i, src->Get(src_pos + i)); |
| 830 | } |
| 831 | } |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 832 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 833 | ObjectArray<T>* CopyOf(int32_t new_length) { |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 834 | ObjectArray<T>* new_array = Alloc(klass_, new_length); |
| 835 | Copy(this, 0, new_array, 0, std::min(GetLength(), new_length)); |
| 836 | return new_array; |
| 837 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 838 | |
| 839 | private: |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 840 | // Location of first element. |
| 841 | T* elements_[0]; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 842 | |
| 843 | DISALLOW_IMPLICIT_CONSTRUCTORS(ObjectArray); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 844 | }; |
| 845 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 846 | // ClassLoader objects. |
| 847 | class ClassLoader : public Object { |
| 848 | public: |
| 849 | std::vector<const DexFile*>& GetClassPath() { |
| 850 | return class_path_; |
| 851 | } |
| 852 | void SetClassPath(std::vector<const DexFile*>& class_path) { |
| 853 | DCHECK_EQ(0U, class_path_.size()); |
| 854 | class_path_ = class_path; |
| 855 | } |
| 856 | |
| 857 | private: |
| 858 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
| 859 | Object* packages_; |
| 860 | ClassLoader* parent_; |
| 861 | |
Brian Carlstrom | 4a289ed | 2011-08-16 17:17:49 -0700 | [diff] [blame] | 862 | // TODO: remove once we can create a real PathClassLoader |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 863 | std::vector<const DexFile*> class_path_; |
| 864 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 865 | DISALLOW_IMPLICIT_CONSTRUCTORS(ClassLoader); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 866 | }; |
| 867 | |
| 868 | class BaseDexClassLoader : public ClassLoader { |
| 869 | private: |
| 870 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
| 871 | String* original_path_; |
| 872 | Object* path_list_; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 873 | DISALLOW_IMPLICIT_CONSTRUCTORS(BaseDexClassLoader); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 874 | }; |
| 875 | |
| 876 | class PathClassLoader : public BaseDexClassLoader { |
| 877 | private: |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 878 | DISALLOW_IMPLICIT_CONSTRUCTORS(PathClassLoader); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 879 | }; |
| 880 | |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 881 | // Class objects. |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 882 | class Class : public Object { |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 883 | public: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 884 | |
| 885 | // Class Status |
| 886 | // |
| 887 | // kStatusNotReady: If a Class cannot be found in the class table by |
| 888 | // FindClass, it allocates an new one with AllocClass in the |
| 889 | // kStatusNotReady and calls LoadClass. Note if it does find a |
| 890 | // class, it may not be kStatusResolved and it will try to push it |
| 891 | // forward toward kStatusResolved. |
| 892 | // |
| 893 | // kStatusIdx: LoadClass populates with Class with information from |
| 894 | // the DexFile, moving the status to kStatusIdx, indicating that the |
| 895 | // Class values in super_class_ and interfaces_ have not been |
| 896 | // populated based on super_class_idx_ and interfaces_idx_. The new |
| 897 | // Class can then be inserted into the classes table. |
| 898 | // |
| 899 | // kStatusLoaded: After taking a lock on Class, the ClassLinker will |
| 900 | // attempt to move a kStatusIdx class forward to kStatusLoaded by |
| 901 | // using ResolveClass to initialize the super_class_ and interfaces_. |
| 902 | // |
| 903 | // kStatusResolved: Still holding the lock on Class, the ClassLinker |
| 904 | // will use LinkClass to link all members, creating Field and Method |
| 905 | // objects, setting up the vtable, etc. On success, the class is |
| 906 | // marked kStatusResolved. |
| 907 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 908 | enum Status { |
Carl Shapiro | 894d0fa | 2011-06-30 14:48:49 -0700 | [diff] [blame] | 909 | kStatusError = -1, |
| 910 | kStatusNotReady = 0, |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 911 | kStatusIdx = 1, // loaded, DEX idx in super_class_idx_ and interfaces_idx_ |
Carl Shapiro | 894d0fa | 2011-06-30 14:48:49 -0700 | [diff] [blame] | 912 | kStatusLoaded = 2, // DEX idx values resolved |
| 913 | kStatusResolved = 3, // part of linking |
| 914 | kStatusVerifying = 4, // in the process of being verified |
| 915 | kStatusVerified = 5, // logically part of linking; done pre-init |
| 916 | kStatusInitializing = 6, // class init in progress |
| 917 | kStatusInitialized = 7, // ready to go |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 918 | }; |
| 919 | |
| 920 | enum PrimitiveType { |
| 921 | kPrimNot = -1 |
| 922 | }; |
| 923 | |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 924 | Object* NewInstance() { |
| 925 | return Heap::AllocObject(this, this->object_size_); |
| 926 | } |
| 927 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 928 | Class* GetSuperClass() const { |
| 929 | return super_class_; |
| 930 | } |
| 931 | |
| 932 | uint32_t GetSuperClassIdx() const { |
| 933 | return super_class_idx_; |
| 934 | } |
| 935 | |
| 936 | bool HasSuperClass() const { |
| 937 | return super_class_ != NULL; |
| 938 | } |
| 939 | |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 940 | bool IsAssignableFrom(const Class* klass) const { |
| 941 | DCHECK(klass != NULL); |
| 942 | if (this == klass) { |
| 943 | return true; |
| 944 | } |
| 945 | if (IsInterface()) { |
| 946 | return klass->Implements(this); |
| 947 | } |
| 948 | if (klass->IsArray()) { |
| 949 | return IsAssignableFromArray(klass); |
| 950 | } |
| 951 | return klass->IsSubClass(this); |
| 952 | } |
| 953 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 954 | ClassLoader* GetClassLoader() const { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 955 | return class_loader_; |
| 956 | } |
| 957 | |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 958 | DexCache* GetDexCache() const { |
| 959 | return dex_cache_; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 960 | } |
| 961 | |
| 962 | Class* GetComponentType() const { |
| 963 | return component_type_; |
| 964 | } |
| 965 | |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 966 | static size_t GetTypeSize(String* descriptor); |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 967 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 968 | size_t GetComponentSize() const { |
| 969 | return GetTypeSize(component_type_->descriptor_); |
| 970 | } |
| 971 | |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 972 | const String* GetDescriptor() const { |
| 973 | DCHECK(descriptor_ != NULL); |
| 974 | // DCHECK_NE(0, descriptor_->GetLength()); // TODO: keep? |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 975 | return descriptor_; |
| 976 | } |
| 977 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 978 | size_t SizeOf() const { |
| 979 | return class_size_; |
| 980 | } |
| 981 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 982 | Status GetStatus() const { |
| 983 | return status_; |
| 984 | } |
| 985 | |
| 986 | void SetStatus(Status new_status) { |
| 987 | // TODO: validate transition |
| 988 | status_ = new_status; |
| 989 | } |
| 990 | |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 991 | // Returns true if the class has failed to link. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 992 | bool IsErroneous() const { |
| 993 | return GetStatus() == kStatusError; |
| 994 | } |
| 995 | |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 996 | // Returns true if the class has been verified. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 997 | bool IsVerified() const { |
| 998 | return GetStatus() >= kStatusVerified; |
| 999 | } |
| 1000 | |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1001 | // Returns true if the class has been linked. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1002 | bool IsLinked() const { |
| 1003 | return GetStatus() >= kStatusResolved; |
| 1004 | } |
| 1005 | |
Carl Shapiro | 83ab4f3 | 2011-08-15 20:21:39 -0700 | [diff] [blame] | 1006 | // Returns true if the class has been loaded. |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1007 | bool IsLoaded() const { |
| 1008 | return GetStatus() >= kStatusLoaded; |
| 1009 | } |
| 1010 | |
Carl Shapiro | 83ab4f3 | 2011-08-15 20:21:39 -0700 | [diff] [blame] | 1011 | // Returns true if the class is initialized. |
| 1012 | bool IsInitialized() const { |
| 1013 | return GetStatus() == kStatusInitialized; |
| 1014 | } |
| 1015 | |
Carl Shapiro | 894d0fa | 2011-06-30 14:48:49 -0700 | [diff] [blame] | 1016 | // Returns true if this class is in the same packages as that class. |
| 1017 | bool IsInSamePackage(const Class* that) const; |
| 1018 | |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1019 | static bool IsInSamePackage(const String* descriptor1, |
| 1020 | const String* descriptor2); |
Carl Shapiro | 894d0fa | 2011-06-30 14:48:49 -0700 | [diff] [blame] | 1021 | |
| 1022 | // Returns true if this class represents an array class. |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1023 | bool IsArray() const; |
Carl Shapiro | 894d0fa | 2011-06-30 14:48:49 -0700 | [diff] [blame] | 1024 | |
| 1025 | // Returns true if the class is an interface. |
| 1026 | bool IsInterface() const { |
| 1027 | return (access_flags_ & kAccInterface) != 0; |
| 1028 | } |
| 1029 | |
| 1030 | // Returns true if the class is declared public. |
| 1031 | bool IsPublic() const { |
| 1032 | return (access_flags_ & kAccPublic) != 0; |
| 1033 | } |
| 1034 | |
| 1035 | // Returns true if the class is declared final. |
| 1036 | bool IsFinal() const { |
| 1037 | return (access_flags_ & kAccFinal) != 0; |
| 1038 | } |
| 1039 | |
| 1040 | // Returns true if the class is abstract. |
| 1041 | bool IsAbstract() const { |
| 1042 | return (access_flags_ & kAccAbstract) != 0; |
| 1043 | } |
| 1044 | |
| 1045 | // Returns true if the class is an annotation. |
| 1046 | bool IsAnnotation() const { |
| 1047 | return (access_flags_ & kAccAnnotation) != 0; |
| 1048 | } |
| 1049 | |
| 1050 | // Returns true if the class is a primitive type. |
| 1051 | bool IsPrimitive() const { |
| 1052 | return primitive_type_ != kPrimNot; |
| 1053 | } |
| 1054 | |
Brian Carlstrom | ae3ac01 | 2011-07-27 01:30:28 -0700 | [diff] [blame] | 1055 | // Returns true if the class is synthetic. |
| 1056 | bool IsSynthetic() const { |
| 1057 | return (access_flags_ & kAccSynthetic) != 0; |
| 1058 | } |
| 1059 | |
Carl Shapiro | 894d0fa | 2011-06-30 14:48:49 -0700 | [diff] [blame] | 1060 | // Returns true if this class can access that class. |
| 1061 | bool CanAccess(const Class* that) const { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1062 | return that->IsPublic() || this->IsInSamePackage(that); |
Carl Shapiro | 894d0fa | 2011-06-30 14:48:49 -0700 | [diff] [blame] | 1063 | } |
| 1064 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1065 | // Returns the number of static, private, and constructor methods. |
| 1066 | size_t NumDirectMethods() const { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1067 | return (direct_methods_ != NULL) ? direct_methods_->GetLength() : 0; |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 1068 | } |
| 1069 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 1070 | Method* GetDirectMethod(int32_t i) const { |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1071 | DCHECK_NE(NumDirectMethods(), 0U); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1072 | return direct_methods_->Get(i); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1073 | } |
| 1074 | |
| 1075 | void SetDirectMethod(uint32_t i, Method* f) { // TODO: uint16_t |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1076 | DCHECK_NE(NumDirectMethods(), 0U); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1077 | direct_methods_->Set(i, f); |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 1078 | } |
| 1079 | |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 1080 | Method* FindDeclaredDirectMethod(const StringPiece& name, |
| 1081 | const StringPiece& descriptor); |
| 1082 | |
| 1083 | Method* FindDirectMethod(const StringPiece& name, |
| 1084 | const StringPiece& descriptor); |
| 1085 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1086 | // Returns the number of non-inherited virtual methods. |
| 1087 | size_t NumVirtualMethods() const { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1088 | return (virtual_methods_ != NULL) ? virtual_methods_->GetLength() : 0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | Method* GetVirtualMethod(uint32_t i) const { |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1092 | DCHECK_NE(NumVirtualMethods(), 0U); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1093 | return virtual_methods_->Get(i); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1094 | } |
| 1095 | |
| 1096 | void SetVirtualMethod(uint32_t i, Method* f) { // TODO: uint16_t |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1097 | DCHECK_NE(NumVirtualMethods(), 0U); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1098 | virtual_methods_->Set(i, f); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1099 | } |
| 1100 | |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 1101 | Method* FindDeclaredVirtualMethod(const StringPiece& name, |
| 1102 | const StringPiece& descriptor); |
| 1103 | |
| 1104 | Method* FindVirtualMethod(const StringPiece& name, |
| 1105 | const StringPiece& descriptor); |
| 1106 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1107 | size_t NumInstanceFields() const { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1108 | return (ifields_ != NULL) ? ifields_->GetLength() : 0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1109 | } |
| 1110 | |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1111 | // Returns the number of instance fields containing reference types. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1112 | size_t NumReferenceInstanceFields() const { |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1113 | return num_reference_instance_fields_; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1114 | } |
| 1115 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1116 | // Returns the number of static fields containing reference types. |
| 1117 | size_t NumReferenceStaticFields() const { |
| 1118 | return num_reference_static_fields_; |
| 1119 | } |
| 1120 | |
Elliott Hughes | cdf5312 | 2011-08-19 15:46:09 -0700 | [diff] [blame] | 1121 | // Finds the given instance field in this class or a superclass. |
| 1122 | Field* FindInstanceField(const StringPiece& name, |
| 1123 | const StringPiece& descriptor); |
| 1124 | |
| 1125 | Field* FindDeclaredInstanceField(const StringPiece& name, |
| 1126 | const StringPiece& descriptor); |
| 1127 | |
| 1128 | // Finds the given static field in this class or a superclass. |
| 1129 | Field* FindStaticField(const StringPiece& name, |
| 1130 | const StringPiece& descriptor); |
| 1131 | |
| 1132 | Field* FindDeclaredStaticField(const StringPiece& name, |
| 1133 | const StringPiece& descriptor); |
| 1134 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1135 | Field* GetInstanceField(uint32_t i) const { // TODO: uint16_t |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1136 | DCHECK_NE(NumInstanceFields(), 0U); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1137 | return ifields_->Get(i); |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 1138 | } |
| 1139 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1140 | void SetInstanceField(uint32_t i, Field* f) { // TODO: uint16_t |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1141 | DCHECK_NE(NumInstanceFields(), 0U); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1142 | ifields_->Set(i, f); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | size_t NumStaticFields() const { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1146 | return (sfields_ != NULL) ? sfields_->GetLength() : 0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1147 | } |
| 1148 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1149 | Field* GetStaticField(uint32_t i) const { // TODO: uint16_t |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1150 | DCHECK_NE(NumStaticFields(), 0U); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1151 | return sfields_->Get(i); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1152 | } |
| 1153 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1154 | void SetStaticField(uint32_t i, Field* f) { // TODO: uint16_t |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1155 | DCHECK_NE(NumStaticFields(), 0U); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1156 | sfields_->Set(i, f); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1157 | } |
| 1158 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1159 | uint32_t GetReferenceInstanceOffsets() const { |
| 1160 | return reference_instance_offsets_; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1161 | } |
| 1162 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1163 | void SetReferenceInstanceOffsets(uint32_t new_reference_offsets) { |
| 1164 | reference_instance_offsets_ = new_reference_offsets; |
| 1165 | } |
| 1166 | |
| 1167 | uint32_t GetReferenceStaticOffsets() const { |
| 1168 | return reference_static_offsets_; |
| 1169 | } |
| 1170 | |
| 1171 | void SetReferenceStaticOffsets(uint32_t new_reference_offsets) { |
| 1172 | reference_static_offsets_ = new_reference_offsets; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1173 | } |
| 1174 | |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1175 | size_t NumInterfaces() const { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1176 | return (interfaces_ != NULL) ? interfaces_->GetLength() : 0; |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1177 | } |
| 1178 | |
| 1179 | Class* GetInterface(uint32_t i) const { |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1180 | DCHECK_NE(NumInterfaces(), 0U); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1181 | return interfaces_->Get(i); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1182 | } |
| 1183 | |
| 1184 | void SetInterface(uint32_t i, Class* f) { // TODO: uint16_t |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1185 | DCHECK_NE(NumInterfaces(), 0U); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1186 | interfaces_->Set(i, f); |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1187 | } |
| 1188 | |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 1189 | void SetVerifyErrorClass(Class* klass) { |
| 1190 | // Note SetFieldObject is used rather than verify_error_class_ directly for the barrier |
| 1191 | size_t field_offset = OFFSETOF_MEMBER(Class, verify_error_class_); |
| 1192 | klass->SetFieldObject(field_offset, klass); |
| 1193 | } |
| 1194 | |
| 1195 | private: |
| 1196 | bool Implements(const Class* klass) const; |
| 1197 | bool IsArrayAssignableFromArray(const Class* klass) const; |
| 1198 | bool IsAssignableFromArray(const Class* klass) const; |
| 1199 | bool IsSubClass(const Class* klass) const; |
| 1200 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 1201 | public: // TODO: private |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1202 | // descriptor for the class such as "java.lang.Class" or "[C" |
| 1203 | String* name_; // TODO initialize |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1204 | |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1205 | // descriptor for the class such as "Ljava/lang/Class;" or "[C" |
| 1206 | String* descriptor_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1207 | |
| 1208 | // access flags; low 16 bits are defined by VM spec |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 1209 | uint32_t access_flags_; // TODO: make an instance field? |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1210 | |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 1211 | // DexCache of resolved constant pool entries |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1212 | // (will be NULL for VM-generated, e.g. arrays and primitive classes) |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 1213 | DexCache* dex_cache_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1214 | |
| 1215 | // state of class initialization |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1216 | Status status_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1217 | |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 1218 | // If class verify fails, we must return same error on subsequent tries. |
| 1219 | // Update with SetVerifyErrorClass to ensure a write barrier is used. |
| 1220 | const Class* verify_error_class_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1221 | |
| 1222 | // threadId, used to check for recursive <clinit> invocation |
| 1223 | uint32_t clinit_thread_id_; |
| 1224 | |
| 1225 | // Total object size; used when allocating storage on gc heap. (For |
| 1226 | // interfaces and abstract classes this will be zero.) |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1227 | size_t object_size_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1228 | |
| 1229 | // For array classes, the class object for base element, for |
| 1230 | // instanceof/checkcast (for String[][][], this will be String). |
| 1231 | // Otherwise, NULL. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1232 | Class* component_type_; // TODO: make an instance field |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1233 | |
| 1234 | // For array classes, the number of array dimensions, e.g. int[][] |
| 1235 | // is 2. Otherwise 0. |
| 1236 | int32_t array_rank_; |
| 1237 | |
| 1238 | // primitive type index, or PRIM_NOT (-1); set for generated prim classes |
| 1239 | PrimitiveType primitive_type_; |
| 1240 | |
| 1241 | // The superclass, or NULL if this is java.lang.Object or a |
| 1242 | // primitive type. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1243 | Class* super_class_; // TODO: make an instance field |
| 1244 | uint32_t super_class_idx_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1245 | |
| 1246 | // defining class loader, or NULL for the "bootstrap" system loader |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1247 | ClassLoader* class_loader_; // TODO: make an instance field |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1248 | |
| 1249 | // initiating class loader list |
| 1250 | // NOTE: for classes with low serialNumber, these are unused, and the |
| 1251 | // values are kept in a table in gDvm. |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 1252 | // InitiatingLoaderList initiating_loader_list_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1253 | |
| 1254 | // array of interfaces this class implements directly |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1255 | ObjectArray<Class>* interfaces_; |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1256 | uint32_t* interfaces_idx_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1257 | |
| 1258 | // static, private, and <init> methods |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1259 | ObjectArray<Method>* direct_methods_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1260 | |
| 1261 | // virtual methods defined in this class; invoked through vtable |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1262 | ObjectArray<Method>* virtual_methods_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1263 | |
| 1264 | // Virtual method table (vtable), for use by "invoke-virtual". The |
| 1265 | // vtable from the superclass is copied in, and virtual methods from |
| 1266 | // our class either replace those from the super or are appended. |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 1267 | ObjectArray<Method>* vtable_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1268 | |
| 1269 | // Interface table (iftable), one entry per interface supported by |
| 1270 | // this class. That means one entry for each interface we support |
| 1271 | // directly, indirectly via superclass, or indirectly via |
| 1272 | // superinterface. This will be null if neither we nor our |
| 1273 | // superclass implement any interfaces. |
| 1274 | // |
| 1275 | // Why we need this: given "class Foo implements Face", declare |
| 1276 | // "Face faceObj = new Foo()". Invoke faceObj.blah(), where "blah" |
| 1277 | // is part of the Face interface. We can't easily use a single |
| 1278 | // vtable. |
| 1279 | // |
| 1280 | // For every interface a concrete class implements, we create a list |
| 1281 | // of virtualMethod indices for the methods in the interface. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1282 | size_t iftable_count_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1283 | InterfaceEntry* iftable_; |
| 1284 | |
| 1285 | // The interface vtable indices for iftable get stored here. By |
| 1286 | // placing them all in a single pool for each class that implements |
| 1287 | // interfaces, we decrease the number of allocations. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1288 | size_t ifvi_pool_count_; |
| 1289 | uint32_t* ifvi_pool_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1290 | |
| 1291 | // instance fields |
| 1292 | // |
| 1293 | // These describe the layout of the contents of a |
| 1294 | // DataObject-compatible Object. Note that only the fields directly |
| 1295 | // declared by this class are listed in ifields; fields declared by |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1296 | // a superclass are listed in the superclass's Class.ifields. |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1297 | // |
| 1298 | // All instance fields that refer to objects are guaranteed to be at |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 1299 | // the beginning of the field list. num_reference_instance_fields_ |
| 1300 | // specifies the number of reference fields. |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1301 | ObjectArray<Field>* ifields_; |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 1302 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1303 | // number of instance fields that are object refs |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 1304 | size_t num_reference_instance_fields_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1305 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1306 | // Bitmap of offsets of ifields. |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1307 | uint32_t reference_instance_offsets_; |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1308 | |
| 1309 | // source file name, if known. Otherwise, NULL. |
| 1310 | const char* source_file_; |
| 1311 | |
Jesse Wilson | 7833bd2 | 2011-08-09 18:31:44 -0400 | [diff] [blame] | 1312 | // Static fields |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1313 | ObjectArray<Field>* sfields_; |
Jesse Wilson | 7833bd2 | 2011-08-09 18:31:44 -0400 | [diff] [blame] | 1314 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1315 | // number of static fields that are object refs |
| 1316 | size_t num_reference_static_fields_; |
| 1317 | |
| 1318 | // Bitmap of offsets of sfields. |
| 1319 | uint32_t reference_static_offsets_; |
| 1320 | |
| 1321 | // Total class size; used when allocating storage on gc heap. |
| 1322 | size_t class_size_; |
| 1323 | |
| 1324 | // Location of first static field. |
| 1325 | uint32_t fields_[0]; |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1326 | |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 1327 | private: |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1328 | DISALLOW_IMPLICIT_CONSTRUCTORS(Class); |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1329 | }; |
Elliott Hughes | 1f359b0 | 2011-07-17 14:27:17 -0700 | [diff] [blame] | 1330 | std::ostream& operator<<(std::ostream& os, const Class::Status& rhs); |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1331 | |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 1332 | inline bool Object::InstanceOf(const Class* klass) const { |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 1333 | DCHECK(klass != NULL); |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 1334 | DCHECK(klass_ != NULL); |
| 1335 | return klass->IsAssignableFrom(klass_); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 1336 | } |
| 1337 | |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 1338 | inline bool Object::IsClass() const { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1339 | Class* java_lang_Class = klass_->klass_; |
| 1340 | return klass_ == java_lang_Class; |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 1341 | } |
| 1342 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1343 | inline bool Object::IsClassClass() const { |
| 1344 | Class* java_lang_Class = klass_->klass_; |
| 1345 | return this == java_lang_Class; |
| 1346 | } |
| 1347 | |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 1348 | inline bool Object::IsObjectArray() const { |
| 1349 | return IsArray() && !klass_->component_type_->IsPrimitive(); |
| 1350 | } |
| 1351 | |
| 1352 | inline bool Object::IsArray() const { |
| 1353 | return klass_->IsArray(); |
| 1354 | } |
| 1355 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1356 | inline bool Object::IsField() const { |
| 1357 | Class* java_lang_Class = klass_->klass_; |
| 1358 | Class* java_lang_reflect_Field = java_lang_Class->GetInstanceField(0)->klass_; |
| 1359 | return klass_ == java_lang_reflect_Field; |
| 1360 | } |
| 1361 | |
| 1362 | inline bool Object::IsMethod() const { |
| 1363 | Class* java_lang_Class = klass_->klass_; |
| 1364 | Class* java_lang_reflect_Method = java_lang_Class->GetDirectMethod(0)->klass_; |
| 1365 | return klass_ == java_lang_reflect_Method; |
| 1366 | } |
| 1367 | |
Elliott Hughes | 04b63fd | 2011-08-16 09:40:10 -0700 | [diff] [blame] | 1368 | inline size_t Object::SizeOf() const { |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 1369 | if (IsArray()) { |
Elliott Hughes | 04b63fd | 2011-08-16 09:40:10 -0700 | [diff] [blame] | 1370 | return AsArray()->SizeOf(); |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 1371 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1372 | if (IsClass()) { |
| 1373 | return AsClass()->SizeOf(); |
| 1374 | } |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 1375 | return klass_->object_size_; |
| 1376 | } |
| 1377 | |
Elliott Hughes | 04b63fd | 2011-08-16 09:40:10 -0700 | [diff] [blame] | 1378 | inline size_t Array::SizeOf() const { |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1379 | return SizeOf(GetLength(), klass_->GetComponentSize()); |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 1380 | } |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 1381 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1382 | class ClassClass : public Class { |
| 1383 | private: |
| 1384 | // Padding to ensure the 64-bit serialVersionUID_ begins on a 8-byte boundary |
| 1385 | int32_t padding_; |
| 1386 | int64_t serialVersionUID_; |
| 1387 | DISALLOW_IMPLICIT_CONSTRUCTORS(ClassClass); |
| 1388 | }; |
| 1389 | |
| 1390 | class StringClass : public Class { |
| 1391 | private: |
| 1392 | CharArray* ASCII_; |
| 1393 | Object* CASE_INSENSITIVE_ORDER_; |
| 1394 | uint32_t REPLACEMENT_CHAR_; |
| 1395 | int64_t serialVersionUID; |
| 1396 | DISALLOW_IMPLICIT_CONSTRUCTORS(StringClass); |
| 1397 | }; |
| 1398 | |
| 1399 | class FieldClass : public Class { |
| 1400 | private: |
| 1401 | Object* ORDER_BY_NAME_AND_DECLARING_CLASS_; |
| 1402 | uint32_t TYPE_BOOLEAN_; |
| 1403 | uint32_t TYPE_BYTE_; |
| 1404 | uint32_t TYPE_CHAR_; |
| 1405 | uint32_t TYPE_DOUBLE_; |
| 1406 | uint32_t TYPE_FLOAT_; |
| 1407 | uint32_t TYPE_INTEGER_; |
| 1408 | uint32_t TYPE_LONG_; |
| 1409 | uint32_t TYPE_SHORT_; |
| 1410 | DISALLOW_IMPLICIT_CONSTRUCTORS(FieldClass); |
| 1411 | }; |
| 1412 | |
| 1413 | class MethodClass : public Class { |
| 1414 | private: |
| 1415 | int32_t DECLARED_; |
| 1416 | int32_t PUBLIC_; |
| 1417 | DISALLOW_IMPLICIT_CONSTRUCTORS(MethodClass); |
| 1418 | }; |
| 1419 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1420 | class DataObject : public Object { |
| 1421 | public: |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1422 | // Location of first instance field. |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1423 | uint32_t fields_[0]; |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 1424 | private: |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1425 | DISALLOW_IMPLICIT_CONSTRUCTORS(DataObject); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1426 | }; |
| 1427 | |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1428 | template<class T> |
| 1429 | class PrimitiveArray : public Array { |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 1430 | public: |
Elliott Hughes | 710a0cb | 2011-08-16 14:32:37 -0700 | [diff] [blame] | 1431 | typedef T ElementType; |
| 1432 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 1433 | static PrimitiveArray<T>* Alloc(size_t length); |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1434 | |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1435 | const T* GetData() const { |
| 1436 | return reinterpret_cast<const T*>(&elements_); |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1437 | } |
| 1438 | |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1439 | T* GetData() { |
| 1440 | return reinterpret_cast<T*>(&elements_); |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1441 | } |
| 1442 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 1443 | T Get(int32_t i) const { |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1444 | if (!IsValidIndex(i)) { |
Elliott Hughes | 710a0cb | 2011-08-16 14:32:37 -0700 | [diff] [blame] | 1445 | return T(0); |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1446 | } |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1447 | return GetData()[i]; |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1448 | } |
| 1449 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 1450 | void Set(int32_t i, T value) { |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1451 | // TODO: ArrayStoreException |
| 1452 | if (IsValidIndex(i)) { |
| 1453 | GetData()[i] = value; |
| 1454 | } |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1455 | } |
| 1456 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 1457 | static void SetArrayClass(Class* array_class) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1458 | CHECK(array_class_ == NULL); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 1459 | CHECK(array_class != NULL); |
| 1460 | array_class_ = array_class; |
| 1461 | } |
| 1462 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1463 | static void ResetArrayClass() { |
| 1464 | CHECK(array_class_ != NULL); |
| 1465 | array_class_ = NULL; |
| 1466 | } |
| 1467 | |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 1468 | private: |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1469 | // Location of first element. |
| 1470 | T elements_[0]; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1471 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 1472 | static Class* array_class_; |
| 1473 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1474 | DISALLOW_IMPLICIT_CONSTRUCTORS(PrimitiveArray); |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 1475 | }; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 1476 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1477 | class String : public Object { |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1478 | public: |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1479 | const CharArray* GetCharArray() const { |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1480 | DCHECK(array_ != NULL); |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1481 | return array_; |
| 1482 | } |
| 1483 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1484 | uint32_t GetHashCode() const { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1485 | return hash_code_; |
| 1486 | } |
| 1487 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1488 | uint32_t GetOffset() const { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1489 | return offset_; |
| 1490 | } |
| 1491 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1492 | uint32_t GetLength() const { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1493 | return count_; |
| 1494 | } |
| 1495 | |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1496 | // TODO: do we need this? Equals is the only caller, and could |
| 1497 | // bounds check itself. |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1498 | uint16_t CharAt(int32_t index) const { |
| 1499 | if (index < 0 || index >= count_) { |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1500 | Thread* self = Thread::Current(); |
| 1501 | self->ThrowNewException("Ljava/lang/StringIndexOutOfBoundsException;", |
| 1502 | "length=%i; index=%i", count_, index); |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1503 | return 0; |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1504 | } |
Elliott Hughes | 710a0cb | 2011-08-16 14:32:37 -0700 | [diff] [blame] | 1505 | return GetCharArray()->Get(index + GetOffset()); |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1506 | } |
| 1507 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1508 | static String* AllocFromUtf16(int32_t utf16_length, |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1509 | const uint16_t* utf16_data_in, |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1510 | int32_t hash_code) { |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1511 | String* string = Alloc(GetJavaLangString(), |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1512 | utf16_length); |
Brian Carlstrom | 4a289ed | 2011-08-16 17:17:49 -0700 | [diff] [blame] | 1513 | // TODO: use 16-bit wide memset variant |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1514 | for (int i = 0; i < utf16_length; i++ ) { |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1515 | string->array_->Set(i, utf16_data_in[i]); |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1516 | } |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1517 | string->ComputeHashCode(); |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1518 | return string; |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 1519 | } |
| 1520 | |
Elliott Hughes | bfaadc8 | 2011-08-18 17:36:58 -0700 | [diff] [blame] | 1521 | static String* AllocFromModifiedUtf8(const char* utf) { |
| 1522 | size_t char_count = ModifiedUtf8Len(utf); |
| 1523 | return AllocFromModifiedUtf8(char_count, utf); |
Jesse Wilson | f7e85a5 | 2011-08-01 18:45:58 -0700 | [diff] [blame] | 1524 | } |
| 1525 | |
Jesse Wilson | 8989d99 | 2011-08-02 13:39:42 -0700 | [diff] [blame] | 1526 | static String* AllocFromModifiedUtf8(int32_t utf16_length, |
| 1527 | const char* utf8_data_in) { |
Elliott Hughes | bfaadc8 | 2011-08-18 17:36:58 -0700 | [diff] [blame] | 1528 | String* string = Alloc(GetJavaLangString(), utf16_length); |
| 1529 | uint16_t* utf16_data_out = string->array_->GetData(); |
| 1530 | ConvertModifiedUtf8ToUtf16(utf16_data_out, utf8_data_in); |
| 1531 | string->ComputeHashCode(); |
| 1532 | return string; |
Jesse Wilson | 8989d99 | 2011-08-02 13:39:42 -0700 | [diff] [blame] | 1533 | } |
| 1534 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1535 | static void SetClass(Class* java_lang_String); |
| 1536 | static void ResetClass(); |
Jesse Wilson | f7e85a5 | 2011-08-01 18:45:58 -0700 | [diff] [blame] | 1537 | |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1538 | static String* Alloc(Class* java_lang_String, |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1539 | int32_t utf16_length) { |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1540 | return Alloc(java_lang_String, CharArray::Alloc(utf16_length)); |
| 1541 | } |
| 1542 | |
| 1543 | static String* Alloc(Class* java_lang_String, |
| 1544 | CharArray* array) { |
Brian Carlstrom | f7ed11a | 2011-08-09 17:55:51 -0700 | [diff] [blame] | 1545 | String* string = down_cast<String*>(java_lang_String->NewInstance()); |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1546 | string->array_ = array; |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1547 | string->count_ = array->GetLength(); |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1548 | return string; |
| 1549 | } |
| 1550 | |
| 1551 | // Convert Modified UTF-8 to UTF-16 |
| 1552 | // http://en.wikipedia.org/wiki/UTF-8#Modified_UTF-8 |
| 1553 | static void ConvertModifiedUtf8ToUtf16(uint16_t* utf16_data_out, const char* utf8_data_in) { |
| 1554 | while (*utf8_data_in != '\0') { |
| 1555 | *utf16_data_out++ = GetUtf16FromUtf8(&utf8_data_in); |
| 1556 | } |
| 1557 | } |
| 1558 | |
| 1559 | // Retrieve the next UTF-16 character from a UTF-8 string. |
| 1560 | // |
| 1561 | // Advances "*pUtf8Ptr" to the start of the next character. |
| 1562 | // |
| 1563 | // WARNING: If a string is corrupted by dropping a '\0' in the middle |
| 1564 | // of a 3-byte sequence, you can end up overrunning the buffer with |
| 1565 | // reads (and possibly with the writes if the length was computed and |
| 1566 | // cached before the damage). For performance reasons, this function |
| 1567 | // assumes that the string being parsed is known to be valid (e.g., by |
| 1568 | // already being verified). Most strings we process here are coming |
| 1569 | // out of dex files or other internal translations, so the only real |
| 1570 | // risk comes from the JNI NewStringUTF call. |
| 1571 | static uint16_t GetUtf16FromUtf8(const char** utf8_data_in) { |
| 1572 | uint8_t one = *(*utf8_data_in)++; |
| 1573 | if ((one & 0x80) == 0) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1574 | // one-byte encoding |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1575 | return one; |
| 1576 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1577 | // two- or three-byte encoding |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1578 | uint8_t two = *(*utf8_data_in)++; |
| 1579 | if ((one & 0x20) == 0) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1580 | // two-byte encoding |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1581 | return ((one & 0x1f) << 6) | |
| 1582 | (two & 0x3f); |
| 1583 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1584 | // three-byte encoding |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1585 | uint8_t three = *(*utf8_data_in)++; |
| 1586 | return ((one & 0x0f) << 12) | |
| 1587 | ((two & 0x3f) << 6) | |
| 1588 | (three & 0x3f); |
| 1589 | } |
| 1590 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1591 | // Like "strlen", but for strings encoded with "modified" UTF-8. |
| 1592 | // |
| 1593 | // The value returned is the number of characters, which may or may not |
| 1594 | // be the same as the number of bytes. |
| 1595 | // |
| 1596 | // (If this needs optimizing, try: mask against 0xa0, shift right 5, |
| 1597 | // get increment {1-3} from table of 8 values.) |
| 1598 | static size_t ModifiedUtf8Len(const char* utf8) { |
| 1599 | size_t len = 0; |
| 1600 | int ic; |
| 1601 | while ((ic = *utf8++) != '\0') { |
| 1602 | len++; |
| 1603 | if ((ic & 0x80) == 0) { |
| 1604 | // one-byte encoding |
| 1605 | continue; |
| 1606 | } |
| 1607 | // two- or three-byte encoding |
| 1608 | utf8++; |
| 1609 | if ((ic & 0x20) == 0) { |
| 1610 | // two-byte encoding |
| 1611 | continue; |
| 1612 | } |
| 1613 | // three-byte encoding |
| 1614 | utf8++; |
| 1615 | } |
| 1616 | return len; |
| 1617 | } |
| 1618 | |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1619 | // The java/lang/String.computeHashCode() algorithm |
Jesse Wilson | cbe9fc0 | 2011-07-29 18:59:50 -0400 | [diff] [blame] | 1620 | static int32_t ComputeUtf16Hash(const uint16_t* string_data, size_t string_length) { |
| 1621 | int32_t hash = 0; |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1622 | while (string_length--) { |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1623 | hash = hash * 31 + *string_data++; |
Brian Carlstrom | 0b138b2 | 2011-07-27 15:19:17 -0700 | [diff] [blame] | 1624 | } |
| 1625 | return hash; |
| 1626 | } |
| 1627 | |
Jesse Wilson | fd687c5 | 2011-08-04 19:27:35 -0700 | [diff] [blame] | 1628 | void ComputeHashCode() { |
| 1629 | hash_code_ = ComputeUtf16Hash(array_->GetData(), count_); |
| 1630 | } |
| 1631 | |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1632 | // TODO: do we need this overload? give it a more intention-revealing name. |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1633 | bool Equals(const char* modified_utf8) const { |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1634 | for (uint32_t i = 0; i < GetLength(); ++i) { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1635 | uint16_t ch = GetUtf16FromUtf8(&modified_utf8); |
| 1636 | if (ch == '\0' || ch != CharAt(i)) { |
Jesse Wilson | cbe9fc0 | 2011-07-29 18:59:50 -0400 | [diff] [blame] | 1637 | return false; |
| 1638 | } |
| 1639 | } |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1640 | return *modified_utf8 == '\0'; |
Jesse Wilson | cbe9fc0 | 2011-07-29 18:59:50 -0400 | [diff] [blame] | 1641 | } |
| 1642 | |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1643 | // TODO: do we need this overload? give it a more intention-revealing name. |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1644 | bool Equals(const StringPiece& modified_utf8) const { |
| 1645 | // TODO: do not assume C-string representation. |
| 1646 | return Equals(modified_utf8.data()); |
| 1647 | } |
| 1648 | |
| 1649 | bool Equals(const String* that) const { |
Brian Carlstrom | 4a289ed | 2011-08-16 17:17:49 -0700 | [diff] [blame] | 1650 | // TODO: short circuit on hash_code_ |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1651 | if (this->GetLength() != that->GetLength()) { |
Jesse Wilson | f7e85a5 | 2011-08-01 18:45:58 -0700 | [diff] [blame] | 1652 | return false; |
| 1653 | } |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1654 | for (uint32_t i = 0; i < that->GetLength(); ++i) { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1655 | if (this->CharAt(i) != that->CharAt(i)) { |
Jesse Wilson | f7e85a5 | 2011-08-01 18:45:58 -0700 | [diff] [blame] | 1656 | return false; |
| 1657 | } |
| 1658 | } |
| 1659 | return true; |
| 1660 | } |
| 1661 | |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1662 | // TODO: do we need this overload? give it a more intention-revealing name. |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1663 | bool Equals(const uint16_t* that_chars, uint32_t that_offset, uint32_t that_length) const { |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1664 | if (this->GetLength() != that_length) { |
| 1665 | return false; |
| 1666 | } |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1667 | for (uint32_t i = 0; i < that_length; ++i) { |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1668 | if (this->CharAt(i) != that_chars[that_offset + i]) { |
| 1669 | return false; |
| 1670 | } |
| 1671 | } |
| 1672 | return true; |
| 1673 | } |
| 1674 | |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1675 | // Create a modified UTF-8 encoded std::string from a java/lang/String object. |
| 1676 | std::string ToModifiedUtf8() const { |
| 1677 | std::string result; |
| 1678 | for (uint32_t i = 0; i < GetLength(); i++) { |
| 1679 | uint16_t ch = CharAt(i); |
| 1680 | // The most common case is (ch > 0 && ch <= 0x7f). |
| 1681 | if (ch == 0 || ch > 0x7f) { |
| 1682 | if (ch > 0x07ff) { |
| 1683 | result.push_back((ch >> 12) | 0xe0); |
| 1684 | result.push_back(((ch >> 6) & 0x3f) | 0x80); |
| 1685 | result.push_back((ch & 0x3f) | 0x80); |
| 1686 | } else { // (ch > 0x7f || ch == 0) |
| 1687 | result.push_back((ch >> 6) | 0xc0); |
| 1688 | result.push_back((ch & 0x3f) | 0x80); |
| 1689 | } |
| 1690 | } else { |
| 1691 | result.push_back(ch); |
| 1692 | } |
| 1693 | } |
| 1694 | return result; |
| 1695 | } |
| 1696 | |
| 1697 | |
Brian Carlstrom | a7f4f48 | 2011-07-17 17:01:34 -0700 | [diff] [blame] | 1698 | private: |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1699 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
| 1700 | CharArray* array_; |
| 1701 | |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1702 | uint32_t hash_code_; |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1703 | |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1704 | int32_t offset_; |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1705 | |
Elliott Hughes | 289da82 | 2011-08-16 10:11:20 -0700 | [diff] [blame] | 1706 | int32_t count_; |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1707 | |
| 1708 | static Class* GetJavaLangString() { |
| 1709 | DCHECK(java_lang_String_ != NULL); |
| 1710 | return java_lang_String_; |
| 1711 | } |
Jesse Wilson | f7e85a5 | 2011-08-01 18:45:58 -0700 | [diff] [blame] | 1712 | |
| 1713 | static Class* java_lang_String_; |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 1714 | |
| 1715 | DISALLOW_IMPLICIT_CONSTRUCTORS(String); |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1716 | }; |
| 1717 | |
Elliott Hughes | e5b0dc8 | 2011-08-23 09:59:02 -0700 | [diff] [blame^] | 1718 | class Throwable : public Object { |
| 1719 | private: |
| 1720 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
| 1721 | Throwable* cause_; |
| 1722 | String* detail_message_; |
| 1723 | Object* stack_state_; // Note this is Java volatile: |
| 1724 | Object* stack_trace_; |
| 1725 | Object* suppressed_exceptions_; |
| 1726 | |
| 1727 | DISALLOW_IMPLICIT_CONSTRUCTORS(Throwable); |
| 1728 | }; |
| 1729 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1730 | inline bool Object::IsString() const { |
| 1731 | // TODO use "klass_ == String::GetJavaLangString()" instead? |
| 1732 | return klass_ == klass_->descriptor_->klass_; |
| 1733 | } |
| 1734 | |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1735 | inline size_t Class::GetTypeSize(String* descriptor) { |
| 1736 | switch (descriptor->CharAt(0)) { |
| 1737 | case 'B': return 1; // byte |
| 1738 | case 'C': return 2; // char |
| 1739 | case 'D': return 8; // double |
| 1740 | case 'F': return 4; // float |
| 1741 | case 'I': return 4; // int |
| 1742 | case 'J': return 8; // long |
| 1743 | case 'S': return 2; // short |
| 1744 | case 'Z': return 1; // boolean |
| 1745 | case 'L': return sizeof(Object*); |
| 1746 | case '[': return sizeof(Array*); |
| 1747 | default: |
| 1748 | LOG(ERROR) << "Unknown type " << descriptor; |
| 1749 | return 0; |
| 1750 | } |
| 1751 | } |
| 1752 | |
| 1753 | inline bool Class::IsArray() const { |
| 1754 | return GetDescriptor()->CharAt(0) == '['; // TODO: avoid parsing the descriptor |
| 1755 | } |
| 1756 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1757 | class InterfaceEntry { |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1758 | public: |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1759 | InterfaceEntry() : klass_(NULL), method_index_array_(NULL) { |
| 1760 | } |
| 1761 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1762 | Class* GetClass() const { |
| 1763 | return klass_; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1764 | } |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 1765 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1766 | void SetClass(Class* klass) { |
| 1767 | klass_ = klass; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1768 | } |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 1769 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1770 | private: |
| 1771 | // Points to the interface class. |
Carl Shapiro | 3ee755d | 2011-06-28 12:11:04 -0700 | [diff] [blame] | 1772 | Class* klass_; |
| 1773 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1774 | public: // TODO: private |
| 1775 | // Index into array of vtable offsets. This points into the |
| 1776 | // ifviPool, which holds the vtables for all interfaces declared by |
| 1777 | // this class. |
| 1778 | uint32_t* method_index_array_; |
Carl Shapiro | f88c952 | 2011-08-06 15:47:38 -0700 | [diff] [blame] | 1779 | |
| 1780 | private: |
| 1781 | DISALLOW_COPY_AND_ASSIGN(InterfaceEntry); |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1782 | }; |
| 1783 | |
| 1784 | } // namespace art |
| 1785 | |
| 1786 | #endif // ART_SRC_OBJECT_H_ |