| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "v8.h" |
| |
| #include "api.h" |
| #include "debug.h" |
| #include "execution.h" |
| #include "factory.h" |
| #include "macro-assembler.h" |
| #include "objects.h" |
| #include "objects-visiting.h" |
| #include "platform.h" |
| #include "scopeinfo.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| |
| Handle<FixedArray> Factory::NewFixedArray(int size, PretenureFlag pretenure) { |
| ASSERT(0 <= size); |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateFixedArray(size, pretenure), |
| FixedArray); |
| } |
| |
| |
| Handle<FixedArray> Factory::NewFixedArrayWithHoles(int size, |
| PretenureFlag pretenure) { |
| ASSERT(0 <= size); |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateFixedArrayWithHoles(size, pretenure), |
| FixedArray); |
| } |
| |
| |
| Handle<FixedDoubleArray> Factory::NewFixedDoubleArray(int size, |
| PretenureFlag pretenure) { |
| ASSERT(0 <= size); |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateUninitializedFixedDoubleArray(size, pretenure), |
| FixedDoubleArray); |
| } |
| |
| |
| Handle<StringDictionary> Factory::NewStringDictionary(int at_least_space_for) { |
| ASSERT(0 <= at_least_space_for); |
| CALL_HEAP_FUNCTION(isolate(), |
| StringDictionary::Allocate(at_least_space_for), |
| StringDictionary); |
| } |
| |
| |
| Handle<SeededNumberDictionary> Factory::NewSeededNumberDictionary( |
| int at_least_space_for) { |
| ASSERT(0 <= at_least_space_for); |
| CALL_HEAP_FUNCTION(isolate(), |
| SeededNumberDictionary::Allocate(at_least_space_for), |
| SeededNumberDictionary); |
| } |
| |
| |
| Handle<UnseededNumberDictionary> Factory::NewUnseededNumberDictionary( |
| int at_least_space_for) { |
| ASSERT(0 <= at_least_space_for); |
| CALL_HEAP_FUNCTION(isolate(), |
| UnseededNumberDictionary::Allocate(at_least_space_for), |
| UnseededNumberDictionary); |
| } |
| |
| |
| Handle<ObjectHashSet> Factory::NewObjectHashSet(int at_least_space_for) { |
| ASSERT(0 <= at_least_space_for); |
| CALL_HEAP_FUNCTION(isolate(), |
| ObjectHashSet::Allocate(at_least_space_for), |
| ObjectHashSet); |
| } |
| |
| |
| Handle<ObjectHashTable> Factory::NewObjectHashTable(int at_least_space_for) { |
| ASSERT(0 <= at_least_space_for); |
| CALL_HEAP_FUNCTION(isolate(), |
| ObjectHashTable::Allocate(at_least_space_for), |
| ObjectHashTable); |
| } |
| |
| |
| Handle<DescriptorArray> Factory::NewDescriptorArray(int number_of_descriptors, |
| int slack) { |
| ASSERT(0 <= number_of_descriptors); |
| CALL_HEAP_FUNCTION(isolate(), |
| DescriptorArray::Allocate(number_of_descriptors, slack), |
| DescriptorArray); |
| } |
| |
| |
| Handle<DeoptimizationInputData> Factory::NewDeoptimizationInputData( |
| int deopt_entry_count, |
| PretenureFlag pretenure) { |
| ASSERT(deopt_entry_count > 0); |
| CALL_HEAP_FUNCTION(isolate(), |
| DeoptimizationInputData::Allocate(deopt_entry_count, |
| pretenure), |
| DeoptimizationInputData); |
| } |
| |
| |
| Handle<DeoptimizationOutputData> Factory::NewDeoptimizationOutputData( |
| int deopt_entry_count, |
| PretenureFlag pretenure) { |
| ASSERT(deopt_entry_count > 0); |
| CALL_HEAP_FUNCTION(isolate(), |
| DeoptimizationOutputData::Allocate(deopt_entry_count, |
| pretenure), |
| DeoptimizationOutputData); |
| } |
| |
| |
| Handle<AccessorPair> Factory::NewAccessorPair() { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateAccessorPair(), |
| AccessorPair); |
| } |
| |
| |
| Handle<TypeFeedbackInfo> Factory::NewTypeFeedbackInfo() { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateTypeFeedbackInfo(), |
| TypeFeedbackInfo); |
| } |
| |
| |
| // Symbols are created in the old generation (data space). |
| Handle<String> Factory::LookupSymbol(Vector<const char> string) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->LookupSymbol(string), |
| String); |
| } |
| |
| // Symbols are created in the old generation (data space). |
| Handle<String> Factory::LookupSymbol(Handle<String> string) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->LookupSymbol(*string), |
| String); |
| } |
| |
| Handle<String> Factory::LookupAsciiSymbol(Vector<const char> string) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->LookupAsciiSymbol(string), |
| String); |
| } |
| |
| |
| Handle<String> Factory::LookupAsciiSymbol(Handle<SeqOneByteString> string, |
| int from, |
| int length) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->LookupAsciiSymbol(string, |
| from, |
| length), |
| String); |
| } |
| |
| |
| Handle<String> Factory::LookupTwoByteSymbol(Vector<const uc16> string) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->LookupTwoByteSymbol(string), |
| String); |
| } |
| |
| |
| Handle<String> Factory::NewStringFromAscii(Vector<const char> string, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateStringFromOneByte(string, pretenure), |
| String); |
| } |
| |
| Handle<String> Factory::NewStringFromUtf8(Vector<const char> string, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateStringFromUtf8(string, pretenure), |
| String); |
| } |
| |
| |
| Handle<String> Factory::NewStringFromTwoByte(Vector<const uc16> string, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateStringFromTwoByte(string, pretenure), |
| String); |
| } |
| |
| |
| Handle<SeqOneByteString> Factory::NewRawOneByteString(int length, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateRawOneByteString(length, pretenure), |
| SeqOneByteString); |
| } |
| |
| |
| Handle<SeqTwoByteString> Factory::NewRawTwoByteString(int length, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateRawTwoByteString(length, pretenure), |
| SeqTwoByteString); |
| } |
| |
| |
| Handle<String> Factory::NewConsString(Handle<String> first, |
| Handle<String> second) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateConsString(*first, *second), |
| String); |
| } |
| |
| |
| Handle<String> Factory::NewSubString(Handle<String> str, |
| int begin, |
| int end) { |
| CALL_HEAP_FUNCTION(isolate(), |
| str->SubString(begin, end), |
| String); |
| } |
| |
| |
| Handle<String> Factory::NewProperSubString(Handle<String> str, |
| int begin, |
| int end) { |
| ASSERT(begin > 0 || end < str->length()); |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateSubString(*str, begin, end), |
| String); |
| } |
| |
| |
| Handle<String> Factory::NewExternalStringFromAscii( |
| const ExternalAsciiString::Resource* resource) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateExternalStringFromAscii(resource), |
| String); |
| } |
| |
| |
| Handle<String> Factory::NewExternalStringFromTwoByte( |
| const ExternalTwoByteString::Resource* resource) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateExternalStringFromTwoByte(resource), |
| String); |
| } |
| |
| |
| Handle<Context> Factory::NewNativeContext() { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateNativeContext(), |
| Context); |
| } |
| |
| |
| Handle<Context> Factory::NewGlobalContext(Handle<JSFunction> function, |
| Handle<ScopeInfo> scope_info) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateGlobalContext(*function, *scope_info), |
| Context); |
| } |
| |
| |
| Handle<Context> Factory::NewModuleContext(Handle<ScopeInfo> scope_info) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateModuleContext(*scope_info), |
| Context); |
| } |
| |
| |
| Handle<Context> Factory::NewFunctionContext(int length, |
| Handle<JSFunction> function) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateFunctionContext(length, *function), |
| Context); |
| } |
| |
| |
| Handle<Context> Factory::NewCatchContext(Handle<JSFunction> function, |
| Handle<Context> previous, |
| Handle<String> name, |
| Handle<Object> thrown_object) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateCatchContext(*function, |
| *previous, |
| *name, |
| *thrown_object), |
| Context); |
| } |
| |
| |
| Handle<Context> Factory::NewWithContext(Handle<JSFunction> function, |
| Handle<Context> previous, |
| Handle<JSObject> extension) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateWithContext(*function, *previous, *extension), |
| Context); |
| } |
| |
| |
| Handle<Context> Factory::NewBlockContext(Handle<JSFunction> function, |
| Handle<Context> previous, |
| Handle<ScopeInfo> scope_info) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateBlockContext(*function, |
| *previous, |
| *scope_info), |
| Context); |
| } |
| |
| |
| Handle<Struct> Factory::NewStruct(InstanceType type) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateStruct(type), |
| Struct); |
| } |
| |
| |
| Handle<AccessorInfo> Factory::NewAccessorInfo() { |
| Handle<AccessorInfo> info = |
| Handle<AccessorInfo>::cast(NewStruct(ACCESSOR_INFO_TYPE)); |
| info->set_flag(0); // Must clear the flag, it was initialized as undefined. |
| return info; |
| } |
| |
| |
| Handle<Script> Factory::NewScript(Handle<String> source) { |
| // Generate id for this script. |
| int id; |
| Heap* heap = isolate()->heap(); |
| if (heap->last_script_id()->IsUndefined()) { |
| // Script ids start from one. |
| id = 1; |
| } else { |
| // Increment id, wrap when positive smi is exhausted. |
| id = Smi::cast(heap->last_script_id())->value(); |
| id++; |
| if (!Smi::IsValid(id)) { |
| id = 0; |
| } |
| } |
| heap->SetLastScriptId(Smi::FromInt(id)); |
| |
| // Create and initialize script object. |
| Handle<Foreign> wrapper = NewForeign(0, TENURED); |
| Handle<Script> script = Handle<Script>::cast(NewStruct(SCRIPT_TYPE)); |
| script->set_source(*source); |
| script->set_name(heap->undefined_value()); |
| script->set_id(heap->last_script_id()); |
| script->set_line_offset(Smi::FromInt(0)); |
| script->set_column_offset(Smi::FromInt(0)); |
| script->set_data(heap->undefined_value()); |
| script->set_context_data(heap->undefined_value()); |
| script->set_type(Smi::FromInt(Script::TYPE_NORMAL)); |
| script->set_compilation_type(Smi::FromInt(Script::COMPILATION_TYPE_HOST)); |
| script->set_compilation_state( |
| Smi::FromInt(Script::COMPILATION_STATE_INITIAL)); |
| script->set_wrapper(*wrapper); |
| script->set_line_ends(heap->undefined_value()); |
| script->set_eval_from_shared(heap->undefined_value()); |
| script->set_eval_from_instructions_offset(Smi::FromInt(0)); |
| |
| return script; |
| } |
| |
| |
| Handle<Foreign> Factory::NewForeign(Address addr, PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateForeign(addr, pretenure), |
| Foreign); |
| } |
| |
| |
| Handle<Foreign> Factory::NewForeign(const AccessorDescriptor* desc) { |
| return NewForeign((Address) desc, TENURED); |
| } |
| |
| |
| Handle<ByteArray> Factory::NewByteArray(int length, PretenureFlag pretenure) { |
| ASSERT(0 <= length); |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateByteArray(length, pretenure), |
| ByteArray); |
| } |
| |
| |
| Handle<ExternalArray> Factory::NewExternalArray(int length, |
| ExternalArrayType array_type, |
| void* external_pointer, |
| PretenureFlag pretenure) { |
| ASSERT(0 <= length); |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateExternalArray(length, |
| array_type, |
| external_pointer, |
| pretenure), |
| ExternalArray); |
| } |
| |
| |
| Handle<JSGlobalPropertyCell> Factory::NewJSGlobalPropertyCell( |
| Handle<Object> value) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateJSGlobalPropertyCell(*value), |
| JSGlobalPropertyCell); |
| } |
| |
| |
| Handle<Map> Factory::NewMap(InstanceType type, |
| int instance_size, |
| ElementsKind elements_kind) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateMap(type, instance_size, elements_kind), |
| Map); |
| } |
| |
| |
| Handle<JSObject> Factory::NewFunctionPrototype(Handle<JSFunction> function) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateFunctionPrototype(*function), |
| JSObject); |
| } |
| |
| |
| Handle<Map> Factory::CopyWithPreallocatedFieldDescriptors(Handle<Map> src) { |
| CALL_HEAP_FUNCTION( |
| isolate(), src->CopyWithPreallocatedFieldDescriptors(), Map); |
| } |
| |
| |
| Handle<Map> Factory::CopyMap(Handle<Map> src, |
| int extra_inobject_properties) { |
| Handle<Map> copy = CopyWithPreallocatedFieldDescriptors(src); |
| // Check that we do not overflow the instance size when adding the |
| // extra inobject properties. |
| int instance_size_delta = extra_inobject_properties * kPointerSize; |
| int max_instance_size_delta = |
| JSObject::kMaxInstanceSize - copy->instance_size(); |
| if (instance_size_delta > max_instance_size_delta) { |
| // If the instance size overflows, we allocate as many properties |
| // as we can as inobject properties. |
| instance_size_delta = max_instance_size_delta; |
| extra_inobject_properties = max_instance_size_delta >> kPointerSizeLog2; |
| } |
| // Adjust the map with the extra inobject properties. |
| int inobject_properties = |
| copy->inobject_properties() + extra_inobject_properties; |
| copy->set_inobject_properties(inobject_properties); |
| copy->set_unused_property_fields(inobject_properties); |
| copy->set_instance_size(copy->instance_size() + instance_size_delta); |
| copy->set_visitor_id(StaticVisitorBase::GetVisitorId(*copy)); |
| return copy; |
| } |
| |
| |
| Handle<Map> Factory::CopyMap(Handle<Map> src) { |
| CALL_HEAP_FUNCTION(isolate(), src->Copy(), Map); |
| } |
| |
| |
| Handle<Map> Factory::GetElementsTransitionMap( |
| Handle<JSObject> src, |
| ElementsKind elements_kind) { |
| Isolate* i = isolate(); |
| CALL_HEAP_FUNCTION(i, |
| src->GetElementsTransitionMap(i, elements_kind), |
| Map); |
| } |
| |
| |
| Handle<FixedArray> Factory::CopyFixedArray(Handle<FixedArray> array) { |
| CALL_HEAP_FUNCTION(isolate(), array->Copy(), FixedArray); |
| } |
| |
| |
| Handle<FixedArray> Factory::CopySizeFixedArray(Handle<FixedArray> array, |
| int new_length) { |
| CALL_HEAP_FUNCTION(isolate(), array->CopySize(new_length), FixedArray); |
| } |
| |
| |
| Handle<FixedDoubleArray> Factory::CopyFixedDoubleArray( |
| Handle<FixedDoubleArray> array) { |
| CALL_HEAP_FUNCTION(isolate(), array->Copy(), FixedDoubleArray); |
| } |
| |
| |
| Handle<JSFunction> Factory::BaseNewFunctionFromSharedFunctionInfo( |
| Handle<SharedFunctionInfo> function_info, |
| Handle<Map> function_map, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateFunction(*function_map, |
| *function_info, |
| isolate()->heap()->the_hole_value(), |
| pretenure), |
| JSFunction); |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo( |
| Handle<SharedFunctionInfo> function_info, |
| Handle<Context> context, |
| PretenureFlag pretenure) { |
| Handle<JSFunction> result = BaseNewFunctionFromSharedFunctionInfo( |
| function_info, |
| function_info->is_classic_mode() |
| ? isolate()->function_map() |
| : isolate()->strict_mode_function_map(), |
| pretenure); |
| |
| if (function_info->ic_age() != isolate()->heap()->global_ic_age()) { |
| function_info->ResetForNewContext(isolate()->heap()->global_ic_age()); |
| } |
| |
| result->set_context(*context); |
| |
| int index = function_info->SearchOptimizedCodeMap(context->native_context()); |
| if (!function_info->bound() && index < 0) { |
| int number_of_literals = function_info->num_literals(); |
| Handle<FixedArray> literals = NewFixedArray(number_of_literals, pretenure); |
| if (number_of_literals > 0) { |
| // Store the native context in the literals array prefix. This |
| // context will be used when creating object, regexp and array |
| // literals in this function. |
| literals->set(JSFunction::kLiteralNativeContextIndex, |
| context->native_context()); |
| } |
| result->set_literals(*literals); |
| } |
| |
| if (index > 0) { |
| // Caching of optimized code enabled and optimized code found. |
| function_info->InstallFromOptimizedCodeMap(*result, index); |
| return result; |
| } |
| |
| if (V8::UseCrankshaft() && |
| FLAG_always_opt && |
| result->is_compiled() && |
| !function_info->is_toplevel() && |
| function_info->allows_lazy_compilation() && |
| !function_info->optimization_disabled()) { |
| result->MarkForLazyRecompilation(); |
| } |
| return result; |
| } |
| |
| |
| Handle<Object> Factory::NewNumber(double value, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->NumberFromDouble(value, pretenure), Object); |
| } |
| |
| |
| Handle<Object> Factory::NewNumberFromInt(int32_t value, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->NumberFromInt32(value, pretenure), Object); |
| } |
| |
| |
| Handle<Object> Factory::NewNumberFromUint(uint32_t value, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->NumberFromUint32(value, pretenure), Object); |
| } |
| |
| |
| Handle<JSObject> Factory::NewNeanderObject() { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateJSObjectFromMap( |
| isolate()->heap()->neander_map()), |
| JSObject); |
| } |
| |
| |
| Handle<Object> Factory::NewTypeError(const char* type, |
| Vector< Handle<Object> > args) { |
| return NewError("MakeTypeError", type, args); |
| } |
| |
| |
| Handle<Object> Factory::NewTypeError(Handle<String> message) { |
| return NewError("$TypeError", message); |
| } |
| |
| |
| Handle<Object> Factory::NewRangeError(const char* type, |
| Vector< Handle<Object> > args) { |
| return NewError("MakeRangeError", type, args); |
| } |
| |
| |
| Handle<Object> Factory::NewRangeError(Handle<String> message) { |
| return NewError("$RangeError", message); |
| } |
| |
| |
| Handle<Object> Factory::NewSyntaxError(const char* type, Handle<JSArray> args) { |
| return NewError("MakeSyntaxError", type, args); |
| } |
| |
| |
| Handle<Object> Factory::NewSyntaxError(Handle<String> message) { |
| return NewError("$SyntaxError", message); |
| } |
| |
| |
| Handle<Object> Factory::NewReferenceError(const char* type, |
| Vector< Handle<Object> > args) { |
| return NewError("MakeReferenceError", type, args); |
| } |
| |
| |
| Handle<Object> Factory::NewReferenceError(Handle<String> message) { |
| return NewError("$ReferenceError", message); |
| } |
| |
| |
| Handle<Object> Factory::NewError(const char* maker, const char* type, |
| Vector< Handle<Object> > args) { |
| v8::HandleScope scope; // Instantiate a closeable HandleScope for EscapeFrom. |
| Handle<FixedArray> array = NewFixedArray(args.length()); |
| for (int i = 0; i < args.length(); i++) { |
| array->set(i, *args[i]); |
| } |
| Handle<JSArray> object = NewJSArrayWithElements(array); |
| Handle<Object> result = NewError(maker, type, object); |
| return result.EscapeFrom(&scope); |
| } |
| |
| |
| Handle<Object> Factory::NewEvalError(const char* type, |
| Vector< Handle<Object> > args) { |
| return NewError("MakeEvalError", type, args); |
| } |
| |
| |
| Handle<Object> Factory::NewError(const char* type, |
| Vector< Handle<Object> > args) { |
| return NewError("MakeError", type, args); |
| } |
| |
| |
| Handle<String> Factory::EmergencyNewError(const char* type, |
| Handle<JSArray> args) { |
| const int kBufferSize = 1000; |
| char buffer[kBufferSize]; |
| size_t space = kBufferSize; |
| char* p = &buffer[0]; |
| |
| Vector<char> v(buffer, kBufferSize); |
| OS::StrNCpy(v, type, space); |
| space -= Min(space, strlen(type)); |
| p = &buffer[kBufferSize] - space; |
| |
| for (unsigned i = 0; i < ARRAY_SIZE(args); i++) { |
| if (space > 0) { |
| *p++ = ' '; |
| space--; |
| if (space > 0) { |
| MaybeObject* maybe_arg = args->GetElement(i); |
| Handle<String> arg_str(reinterpret_cast<String*>(maybe_arg)); |
| const char* arg = *arg_str->ToCString(); |
| Vector<char> v2(p, static_cast<int>(space)); |
| OS::StrNCpy(v2, arg, space); |
| space -= Min(space, strlen(arg)); |
| p = &buffer[kBufferSize] - space; |
| } |
| } |
| } |
| if (space > 0) { |
| *p = '\0'; |
| } else { |
| buffer[kBufferSize - 1] = '\0'; |
| } |
| Handle<String> error_string = NewStringFromUtf8(CStrVector(buffer), TENURED); |
| return error_string; |
| } |
| |
| |
| Handle<Object> Factory::NewError(const char* maker, |
| const char* type, |
| Handle<JSArray> args) { |
| Handle<String> make_str = LookupAsciiSymbol(maker); |
| Handle<Object> fun_obj( |
| isolate()->js_builtins_object()->GetPropertyNoExceptionThrown(*make_str)); |
| // If the builtins haven't been properly configured yet this error |
| // constructor may not have been defined. Bail out. |
| if (!fun_obj->IsJSFunction()) { |
| return EmergencyNewError(type, args); |
| } |
| Handle<JSFunction> fun = Handle<JSFunction>::cast(fun_obj); |
| Handle<Object> type_obj = LookupAsciiSymbol(type); |
| Handle<Object> argv[] = { type_obj, args }; |
| |
| // Invoke the JavaScript factory method. If an exception is thrown while |
| // running the factory method, use the exception as the result. |
| bool caught_exception; |
| Handle<Object> result = Execution::TryCall(fun, |
| isolate()->js_builtins_object(), |
| ARRAY_SIZE(argv), |
| argv, |
| &caught_exception); |
| return result; |
| } |
| |
| |
| Handle<Object> Factory::NewError(Handle<String> message) { |
| return NewError("$Error", message); |
| } |
| |
| |
| Handle<Object> Factory::NewError(const char* constructor, |
| Handle<String> message) { |
| Handle<String> constr = LookupAsciiSymbol(constructor); |
| Handle<JSFunction> fun = Handle<JSFunction>( |
| JSFunction::cast(isolate()->js_builtins_object()-> |
| GetPropertyNoExceptionThrown(*constr))); |
| Handle<Object> argv[] = { message }; |
| |
| // Invoke the JavaScript factory method. If an exception is thrown while |
| // running the factory method, use the exception as the result. |
| bool caught_exception; |
| Handle<Object> result = Execution::TryCall(fun, |
| isolate()->js_builtins_object(), |
| ARRAY_SIZE(argv), |
| argv, |
| &caught_exception); |
| return result; |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunction(Handle<String> name, |
| InstanceType type, |
| int instance_size, |
| Handle<Code> code, |
| bool force_initial_map) { |
| // Allocate the function |
| Handle<JSFunction> function = NewFunction(name, the_hole_value()); |
| |
| // Set up the code pointer in both the shared function info and in |
| // the function itself. |
| function->shared()->set_code(*code); |
| function->set_code(*code); |
| |
| if (force_initial_map || |
| type != JS_OBJECT_TYPE || |
| instance_size != JSObject::kHeaderSize) { |
| Handle<Map> initial_map = NewMap(type, instance_size); |
| Handle<JSObject> prototype = NewFunctionPrototype(function); |
| initial_map->set_prototype(*prototype); |
| function->set_initial_map(*initial_map); |
| initial_map->set_constructor(*function); |
| } else { |
| ASSERT(!function->has_initial_map()); |
| ASSERT(!function->has_prototype()); |
| } |
| |
| return function; |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunctionWithPrototype(Handle<String> name, |
| InstanceType type, |
| int instance_size, |
| Handle<JSObject> prototype, |
| Handle<Code> code, |
| bool force_initial_map) { |
| // Allocate the function. |
| Handle<JSFunction> function = NewFunction(name, prototype); |
| |
| // Set up the code pointer in both the shared function info and in |
| // the function itself. |
| function->shared()->set_code(*code); |
| function->set_code(*code); |
| |
| if (force_initial_map || |
| type != JS_OBJECT_TYPE || |
| instance_size != JSObject::kHeaderSize) { |
| Handle<Map> initial_map = NewMap(type, |
| instance_size, |
| GetInitialFastElementsKind()); |
| function->set_initial_map(*initial_map); |
| initial_map->set_constructor(*function); |
| } |
| |
| // Set function.prototype and give the prototype a constructor |
| // property that refers to the function. |
| SetPrototypeProperty(function, prototype); |
| // Currently safe because it is only invoked from Genesis. |
| CHECK_NOT_EMPTY_HANDLE(isolate(), |
| JSObject::SetLocalPropertyIgnoreAttributes( |
| prototype, constructor_symbol(), |
| function, DONT_ENUM)); |
| return function; |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunctionWithoutPrototype(Handle<String> name, |
| Handle<Code> code) { |
| Handle<JSFunction> function = NewFunctionWithoutPrototype(name, |
| CLASSIC_MODE); |
| function->shared()->set_code(*code); |
| function->set_code(*code); |
| ASSERT(!function->has_initial_map()); |
| ASSERT(!function->has_prototype()); |
| return function; |
| } |
| |
| |
| Handle<ScopeInfo> Factory::NewScopeInfo(int length) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateScopeInfo(length), |
| ScopeInfo); |
| } |
| |
| |
| Handle<JSObject> Factory::NewExternal(void* value) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateExternal(value), |
| JSObject); |
| } |
| |
| |
| Handle<Code> Factory::NewCode(const CodeDesc& desc, |
| Code::Flags flags, |
| Handle<Object> self_ref, |
| bool immovable) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->CreateCode( |
| desc, flags, self_ref, immovable), |
| Code); |
| } |
| |
| |
| Handle<Code> Factory::CopyCode(Handle<Code> code) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->CopyCode(*code), |
| Code); |
| } |
| |
| |
| Handle<Code> Factory::CopyCode(Handle<Code> code, Vector<byte> reloc_info) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->CopyCode(*code, reloc_info), |
| Code); |
| } |
| |
| |
| Handle<String> Factory::SymbolFromString(Handle<String> value) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->LookupSymbol(*value), String); |
| } |
| |
| |
| Handle<JSObject> Factory::NewJSObject(Handle<JSFunction> constructor, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateJSObject(*constructor, pretenure), JSObject); |
| } |
| |
| |
| Handle<JSModule> Factory::NewJSModule(Handle<Context> context, |
| Handle<ScopeInfo> scope_info) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateJSModule(*context, *scope_info), JSModule); |
| } |
| |
| |
| Handle<GlobalObject> Factory::NewGlobalObject( |
| Handle<JSFunction> constructor) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateGlobalObject(*constructor), |
| GlobalObject); |
| } |
| |
| |
| |
| Handle<JSObject> Factory::NewJSObjectFromMap(Handle<Map> map) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateJSObjectFromMap(*map, NOT_TENURED), |
| JSObject); |
| } |
| |
| |
| Handle<JSArray> Factory::NewJSArray(int capacity, |
| ElementsKind elements_kind, |
| PretenureFlag pretenure) { |
| if (capacity != 0) { |
| elements_kind = GetHoleyElementsKind(elements_kind); |
| } |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateJSArrayAndStorage( |
| elements_kind, |
| 0, |
| capacity, |
| INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE, |
| pretenure), |
| JSArray); |
| } |
| |
| |
| Handle<JSArray> Factory::NewJSArrayWithElements(Handle<FixedArrayBase> elements, |
| ElementsKind elements_kind, |
| PretenureFlag pretenure) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateJSArrayWithElements(*elements, |
| elements_kind, |
| elements->length(), |
| pretenure), |
| JSArray); |
| } |
| |
| |
| void Factory::SetElementsCapacityAndLength(Handle<JSArray> array, |
| int capacity, |
| int length) { |
| ElementsAccessor* accessor = array->GetElementsAccessor(); |
| CALL_HEAP_FUNCTION_VOID( |
| isolate(), |
| accessor->SetCapacityAndLength(*array, capacity, length)); |
| } |
| |
| |
| void Factory::SetContent(Handle<JSArray> array, |
| Handle<FixedArrayBase> elements) { |
| CALL_HEAP_FUNCTION_VOID( |
| isolate(), |
| array->SetContent(*elements)); |
| } |
| |
| |
| void Factory::EnsureCanContainHeapObjectElements(Handle<JSArray> array) { |
| CALL_HEAP_FUNCTION_VOID( |
| isolate(), |
| array->EnsureCanContainHeapObjectElements()); |
| } |
| |
| |
| void Factory::EnsureCanContainElements(Handle<JSArray> array, |
| Handle<FixedArrayBase> elements, |
| uint32_t length, |
| EnsureElementsMode mode) { |
| CALL_HEAP_FUNCTION_VOID( |
| isolate(), |
| array->EnsureCanContainElements(*elements, length, mode)); |
| } |
| |
| |
| Handle<JSProxy> Factory::NewJSProxy(Handle<Object> handler, |
| Handle<Object> prototype) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateJSProxy(*handler, *prototype), |
| JSProxy); |
| } |
| |
| |
| void Factory::BecomeJSObject(Handle<JSReceiver> object) { |
| CALL_HEAP_FUNCTION_VOID( |
| isolate(), |
| isolate()->heap()->ReinitializeJSReceiver( |
| *object, JS_OBJECT_TYPE, JSObject::kHeaderSize)); |
| } |
| |
| |
| void Factory::BecomeJSFunction(Handle<JSReceiver> object) { |
| CALL_HEAP_FUNCTION_VOID( |
| isolate(), |
| isolate()->heap()->ReinitializeJSReceiver( |
| *object, JS_FUNCTION_TYPE, JSFunction::kSize)); |
| } |
| |
| |
| void Factory::SetIdentityHash(Handle<JSObject> object, Smi* hash) { |
| CALL_HEAP_FUNCTION_VOID( |
| isolate(), |
| object->SetIdentityHash(hash, ALLOW_CREATION)); |
| } |
| |
| |
| Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo( |
| Handle<String> name, |
| int number_of_literals, |
| Handle<Code> code, |
| Handle<ScopeInfo> scope_info) { |
| Handle<SharedFunctionInfo> shared = NewSharedFunctionInfo(name); |
| shared->set_code(*code); |
| shared->set_scope_info(*scope_info); |
| int literals_array_size = number_of_literals; |
| // If the function contains object, regexp or array literals, |
| // allocate extra space for a literals array prefix containing the |
| // context. |
| if (number_of_literals > 0) { |
| literals_array_size += JSFunction::kLiteralsPrefixSize; |
| } |
| shared->set_num_literals(literals_array_size); |
| return shared; |
| } |
| |
| |
| Handle<JSMessageObject> Factory::NewJSMessageObject( |
| Handle<String> type, |
| Handle<JSArray> arguments, |
| int start_position, |
| int end_position, |
| Handle<Object> script, |
| Handle<Object> stack_trace, |
| Handle<Object> stack_frames) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateJSMessageObject(*type, |
| *arguments, |
| start_position, |
| end_position, |
| *script, |
| *stack_trace, |
| *stack_frames), |
| JSMessageObject); |
| } |
| |
| Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo(Handle<String> name) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateSharedFunctionInfo(*name), |
| SharedFunctionInfo); |
| } |
| |
| |
| Handle<String> Factory::NumberToString(Handle<Object> number) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->NumberToString(*number), String); |
| } |
| |
| |
| Handle<String> Factory::Uint32ToString(uint32_t value) { |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->Uint32ToString(value), String); |
| } |
| |
| |
| Handle<SeededNumberDictionary> Factory::DictionaryAtNumberPut( |
| Handle<SeededNumberDictionary> dictionary, |
| uint32_t key, |
| Handle<Object> value) { |
| CALL_HEAP_FUNCTION(isolate(), |
| dictionary->AtNumberPut(key, *value), |
| SeededNumberDictionary); |
| } |
| |
| |
| Handle<UnseededNumberDictionary> Factory::DictionaryAtNumberPut( |
| Handle<UnseededNumberDictionary> dictionary, |
| uint32_t key, |
| Handle<Object> value) { |
| CALL_HEAP_FUNCTION(isolate(), |
| dictionary->AtNumberPut(key, *value), |
| UnseededNumberDictionary); |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunctionHelper(Handle<String> name, |
| Handle<Object> prototype) { |
| Handle<SharedFunctionInfo> function_share = NewSharedFunctionInfo(name); |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateFunction(*isolate()->function_map(), |
| *function_share, |
| *prototype), |
| JSFunction); |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunction(Handle<String> name, |
| Handle<Object> prototype) { |
| Handle<JSFunction> fun = NewFunctionHelper(name, prototype); |
| fun->set_context(isolate()->context()->native_context()); |
| return fun; |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunctionWithoutPrototypeHelper( |
| Handle<String> name, |
| LanguageMode language_mode) { |
| Handle<SharedFunctionInfo> function_share = NewSharedFunctionInfo(name); |
| Handle<Map> map = (language_mode == CLASSIC_MODE) |
| ? isolate()->function_without_prototype_map() |
| : isolate()->strict_mode_function_without_prototype_map(); |
| CALL_HEAP_FUNCTION(isolate(), |
| isolate()->heap()->AllocateFunction( |
| *map, |
| *function_share, |
| *the_hole_value()), |
| JSFunction); |
| } |
| |
| |
| Handle<JSFunction> Factory::NewFunctionWithoutPrototype( |
| Handle<String> name, |
| LanguageMode language_mode) { |
| Handle<JSFunction> fun = |
| NewFunctionWithoutPrototypeHelper(name, language_mode); |
| fun->set_context(isolate()->context()->native_context()); |
| return fun; |
| } |
| |
| |
| Handle<Object> Factory::ToObject(Handle<Object> object) { |
| CALL_HEAP_FUNCTION(isolate(), object->ToObject(), Object); |
| } |
| |
| |
| Handle<Object> Factory::ToObject(Handle<Object> object, |
| Handle<Context> native_context) { |
| CALL_HEAP_FUNCTION(isolate(), object->ToObject(*native_context), Object); |
| } |
| |
| |
| #ifdef ENABLE_DEBUGGER_SUPPORT |
| Handle<DebugInfo> Factory::NewDebugInfo(Handle<SharedFunctionInfo> shared) { |
| // Get the original code of the function. |
| Handle<Code> code(shared->code()); |
| |
| // Create a copy of the code before allocating the debug info object to avoid |
| // allocation while setting up the debug info object. |
| Handle<Code> original_code(*Factory::CopyCode(code)); |
| |
| // Allocate initial fixed array for active break points before allocating the |
| // debug info object to avoid allocation while setting up the debug info |
| // object. |
| Handle<FixedArray> break_points( |
| NewFixedArray(Debug::kEstimatedNofBreakPointsInFunction)); |
| |
| // Create and set up the debug info object. Debug info contains function, a |
| // copy of the original code, the executing code and initial fixed array for |
| // active break points. |
| Handle<DebugInfo> debug_info = |
| Handle<DebugInfo>::cast(NewStruct(DEBUG_INFO_TYPE)); |
| debug_info->set_shared(*shared); |
| debug_info->set_original_code(*original_code); |
| debug_info->set_code(*code); |
| debug_info->set_break_points(*break_points); |
| |
| // Link debug info to function. |
| shared->set_debug_info(*debug_info); |
| |
| return debug_info; |
| } |
| #endif |
| |
| |
| Handle<JSObject> Factory::NewArgumentsObject(Handle<Object> callee, |
| int length) { |
| CALL_HEAP_FUNCTION( |
| isolate(), |
| isolate()->heap()->AllocateArgumentsObject(*callee, length), JSObject); |
| } |
| |
| |
| Handle<JSFunction> Factory::CreateApiFunction( |
| Handle<FunctionTemplateInfo> obj, ApiInstanceType instance_type) { |
| Handle<Code> code = isolate()->builtins()->HandleApiCall(); |
| Handle<Code> construct_stub = isolate()->builtins()->JSConstructStubApi(); |
| |
| int internal_field_count = 0; |
| if (!obj->instance_template()->IsUndefined()) { |
| Handle<ObjectTemplateInfo> instance_template = |
| Handle<ObjectTemplateInfo>( |
| ObjectTemplateInfo::cast(obj->instance_template())); |
| internal_field_count = |
| Smi::cast(instance_template->internal_field_count())->value(); |
| } |
| |
| int instance_size = kPointerSize * internal_field_count; |
| InstanceType type = INVALID_TYPE; |
| switch (instance_type) { |
| case JavaScriptObject: |
| type = JS_OBJECT_TYPE; |
| instance_size += JSObject::kHeaderSize; |
| break; |
| case InnerGlobalObject: |
| type = JS_GLOBAL_OBJECT_TYPE; |
| instance_size += JSGlobalObject::kSize; |
| break; |
| case OuterGlobalObject: |
| type = JS_GLOBAL_PROXY_TYPE; |
| instance_size += JSGlobalProxy::kSize; |
| break; |
| default: |
| break; |
| } |
| ASSERT(type != INVALID_TYPE); |
| |
| Handle<JSFunction> result = |
| NewFunction(Factory::empty_symbol(), |
| type, |
| instance_size, |
| code, |
| true); |
| // Set class name. |
| Handle<Object> class_name = Handle<Object>(obj->class_name()); |
| if (class_name->IsString()) { |
| result->shared()->set_instance_class_name(*class_name); |
| result->shared()->set_name(*class_name); |
| } |
| |
| Handle<Map> map = Handle<Map>(result->initial_map()); |
| |
| // Mark as undetectable if needed. |
| if (obj->undetectable()) { |
| map->set_is_undetectable(); |
| } |
| |
| // Mark as hidden for the __proto__ accessor if needed. |
| if (obj->hidden_prototype()) { |
| map->set_is_hidden_prototype(); |
| } |
| |
| // Mark as needs_access_check if needed. |
| if (obj->needs_access_check()) { |
| map->set_is_access_check_needed(true); |
| } |
| |
| // Set interceptor information in the map. |
| if (!obj->named_property_handler()->IsUndefined()) { |
| map->set_has_named_interceptor(); |
| } |
| if (!obj->indexed_property_handler()->IsUndefined()) { |
| map->set_has_indexed_interceptor(); |
| } |
| |
| // Set instance call-as-function information in the map. |
| if (!obj->instance_call_handler()->IsUndefined()) { |
| map->set_has_instance_call_handler(); |
| } |
| |
| result->shared()->set_function_data(*obj); |
| result->shared()->set_construct_stub(*construct_stub); |
| result->shared()->DontAdaptArguments(); |
| |
| // Recursively copy parent templates' accessors, 'data' may be modified. |
| int max_number_of_additional_properties = 0; |
| FunctionTemplateInfo* info = *obj; |
| while (true) { |
| Object* props = info->property_accessors(); |
| if (!props->IsUndefined()) { |
| Handle<Object> props_handle(props); |
| NeanderArray props_array(props_handle); |
| max_number_of_additional_properties += props_array.length(); |
| } |
| Object* parent = info->parent_template(); |
| if (parent->IsUndefined()) break; |
| info = FunctionTemplateInfo::cast(parent); |
| } |
| |
| Map::EnsureDescriptorSlack(map, max_number_of_additional_properties); |
| |
| while (true) { |
| Handle<Object> props = Handle<Object>(obj->property_accessors()); |
| if (!props->IsUndefined()) { |
| Map::AppendCallbackDescriptors(map, props); |
| } |
| Handle<Object> parent = Handle<Object>(obj->parent_template()); |
| if (parent->IsUndefined()) break; |
| obj = Handle<FunctionTemplateInfo>::cast(parent); |
| } |
| |
| ASSERT(result->shared()->IsApiFunction()); |
| return result; |
| } |
| |
| |
| Handle<MapCache> Factory::NewMapCache(int at_least_space_for) { |
| CALL_HEAP_FUNCTION(isolate(), |
| MapCache::Allocate(at_least_space_for), MapCache); |
| } |
| |
| |
| MUST_USE_RESULT static MaybeObject* UpdateMapCacheWith(Context* context, |
| FixedArray* keys, |
| Map* map) { |
| Object* result; |
| { MaybeObject* maybe_result = |
| MapCache::cast(context->map_cache())->Put(keys, map); |
| if (!maybe_result->ToObject(&result)) return maybe_result; |
| } |
| context->set_map_cache(MapCache::cast(result)); |
| return result; |
| } |
| |
| |
| Handle<MapCache> Factory::AddToMapCache(Handle<Context> context, |
| Handle<FixedArray> keys, |
| Handle<Map> map) { |
| CALL_HEAP_FUNCTION(isolate(), |
| UpdateMapCacheWith(*context, *keys, *map), MapCache); |
| } |
| |
| |
| Handle<Map> Factory::ObjectLiteralMapFromCache(Handle<Context> context, |
| Handle<FixedArray> keys) { |
| if (context->map_cache()->IsUndefined()) { |
| // Allocate the new map cache for the native context. |
| Handle<MapCache> new_cache = NewMapCache(24); |
| context->set_map_cache(*new_cache); |
| } |
| // Check to see whether there is a matching element in the cache. |
| Handle<MapCache> cache = |
| Handle<MapCache>(MapCache::cast(context->map_cache())); |
| Handle<Object> result = Handle<Object>(cache->Lookup(*keys), isolate()); |
| if (result->IsMap()) return Handle<Map>::cast(result); |
| // Create a new map and add it to the cache. |
| Handle<Map> map = |
| CopyMap(Handle<Map>(context->object_function()->initial_map()), |
| keys->length()); |
| AddToMapCache(context, keys, map); |
| return Handle<Map>(map); |
| } |
| |
| |
| void Factory::SetRegExpAtomData(Handle<JSRegExp> regexp, |
| JSRegExp::Type type, |
| Handle<String> source, |
| JSRegExp::Flags flags, |
| Handle<Object> data) { |
| Handle<FixedArray> store = NewFixedArray(JSRegExp::kAtomDataSize); |
| |
| store->set(JSRegExp::kTagIndex, Smi::FromInt(type)); |
| store->set(JSRegExp::kSourceIndex, *source); |
| store->set(JSRegExp::kFlagsIndex, Smi::FromInt(flags.value())); |
| store->set(JSRegExp::kAtomPatternIndex, *data); |
| regexp->set_data(*store); |
| } |
| |
| void Factory::SetRegExpIrregexpData(Handle<JSRegExp> regexp, |
| JSRegExp::Type type, |
| Handle<String> source, |
| JSRegExp::Flags flags, |
| int capture_count) { |
| Handle<FixedArray> store = NewFixedArray(JSRegExp::kIrregexpDataSize); |
| Smi* uninitialized = Smi::FromInt(JSRegExp::kUninitializedValue); |
| store->set(JSRegExp::kTagIndex, Smi::FromInt(type)); |
| store->set(JSRegExp::kSourceIndex, *source); |
| store->set(JSRegExp::kFlagsIndex, Smi::FromInt(flags.value())); |
| store->set(JSRegExp::kIrregexpASCIICodeIndex, uninitialized); |
| store->set(JSRegExp::kIrregexpUC16CodeIndex, uninitialized); |
| store->set(JSRegExp::kIrregexpASCIICodeSavedIndex, uninitialized); |
| store->set(JSRegExp::kIrregexpUC16CodeSavedIndex, uninitialized); |
| store->set(JSRegExp::kIrregexpMaxRegisterCountIndex, Smi::FromInt(0)); |
| store->set(JSRegExp::kIrregexpCaptureCountIndex, |
| Smi::FromInt(capture_count)); |
| regexp->set_data(*store); |
| } |
| |
| |
| |
| void Factory::ConfigureInstance(Handle<FunctionTemplateInfo> desc, |
| Handle<JSObject> instance, |
| bool* pending_exception) { |
| // Configure the instance by adding the properties specified by the |
| // instance template. |
| Handle<Object> instance_template(desc->instance_template(), isolate()); |
| if (!instance_template->IsUndefined()) { |
| Execution::ConfigureInstance(instance, |
| instance_template, |
| pending_exception); |
| } else { |
| *pending_exception = false; |
| } |
| } |
| |
| |
| Handle<Object> Factory::GlobalConstantFor(Handle<String> name) { |
| Heap* h = isolate()->heap(); |
| if (name->Equals(h->undefined_symbol())) return undefined_value(); |
| if (name->Equals(h->nan_symbol())) return nan_value(); |
| if (name->Equals(h->infinity_symbol())) return infinity_value(); |
| return Handle<Object>::null(); |
| } |
| |
| |
| Handle<Object> Factory::ToBoolean(bool value) { |
| return Handle<Object>(value |
| ? isolate()->heap()->true_value() |
| : isolate()->heap()->false_value()); |
| } |
| |
| |
| } } // namespace v8::internal |