Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/src/factory.cc b/src/factory.cc
new file mode 100644
index 0000000..622055c
--- /dev/null
+++ b/src/factory.cc
@@ -0,0 +1,943 @@
+// Copyright 2006-2008 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"
+
+namespace v8 {
+namespace internal {
+
+
+Handle<FixedArray> Factory::NewFixedArray(int size, PretenureFlag pretenure) {
+ ASSERT(0 <= size);
+ CALL_HEAP_FUNCTION(Heap::AllocateFixedArray(size, pretenure), FixedArray);
+}
+
+
+Handle<FixedArray> Factory::NewFixedArrayWithHoles(int size) {
+ ASSERT(0 <= size);
+ CALL_HEAP_FUNCTION(Heap::AllocateFixedArrayWithHoles(size), FixedArray);
+}
+
+
+Handle<StringDictionary> Factory::NewStringDictionary(int at_least_space_for) {
+ ASSERT(0 <= at_least_space_for);
+ CALL_HEAP_FUNCTION(StringDictionary::Allocate(at_least_space_for),
+ StringDictionary);
+}
+
+
+Handle<NumberDictionary> Factory::NewNumberDictionary(int at_least_space_for) {
+ ASSERT(0 <= at_least_space_for);
+ CALL_HEAP_FUNCTION(NumberDictionary::Allocate(at_least_space_for),
+ NumberDictionary);
+}
+
+
+Handle<DescriptorArray> Factory::NewDescriptorArray(int number_of_descriptors) {
+ ASSERT(0 <= number_of_descriptors);
+ CALL_HEAP_FUNCTION(DescriptorArray::Allocate(number_of_descriptors),
+ DescriptorArray);
+}
+
+
+// Symbols are created in the old generation (data space).
+Handle<String> Factory::LookupSymbol(Vector<const char> string) {
+ CALL_HEAP_FUNCTION(Heap::LookupSymbol(string), String);
+}
+
+
+Handle<String> Factory::NewStringFromAscii(Vector<const char> string,
+ PretenureFlag pretenure) {
+ CALL_HEAP_FUNCTION(Heap::AllocateStringFromAscii(string, pretenure), String);
+}
+
+Handle<String> Factory::NewStringFromUtf8(Vector<const char> string,
+ PretenureFlag pretenure) {
+ CALL_HEAP_FUNCTION(Heap::AllocateStringFromUtf8(string, pretenure), String);
+}
+
+
+Handle<String> Factory::NewStringFromTwoByte(Vector<const uc16> string,
+ PretenureFlag pretenure) {
+ CALL_HEAP_FUNCTION(Heap::AllocateStringFromTwoByte(string, pretenure),
+ String);
+}
+
+
+Handle<String> Factory::NewRawTwoByteString(int length,
+ PretenureFlag pretenure) {
+ CALL_HEAP_FUNCTION(Heap::AllocateRawTwoByteString(length, pretenure), String);
+}
+
+
+Handle<String> Factory::NewConsString(Handle<String> first,
+ Handle<String> second) {
+ CALL_HEAP_FUNCTION(Heap::AllocateConsString(*first, *second), String);
+}
+
+
+Handle<String> Factory::NewStringSlice(Handle<String> str,
+ int begin,
+ int end) {
+ CALL_HEAP_FUNCTION(str->Slice(begin, end), String);
+}
+
+
+Handle<String> Factory::NewExternalStringFromAscii(
+ ExternalAsciiString::Resource* resource) {
+ CALL_HEAP_FUNCTION(Heap::AllocateExternalStringFromAscii(resource), String);
+}
+
+
+Handle<String> Factory::NewExternalStringFromTwoByte(
+ ExternalTwoByteString::Resource* resource) {
+ CALL_HEAP_FUNCTION(Heap::AllocateExternalStringFromTwoByte(resource), String);
+}
+
+
+Handle<Context> Factory::NewGlobalContext() {
+ CALL_HEAP_FUNCTION(Heap::AllocateGlobalContext(), Context);
+}
+
+
+Handle<Context> Factory::NewFunctionContext(int length,
+ Handle<JSFunction> closure) {
+ CALL_HEAP_FUNCTION(Heap::AllocateFunctionContext(length, *closure), Context);
+}
+
+
+Handle<Context> Factory::NewWithContext(Handle<Context> previous,
+ Handle<JSObject> extension,
+ bool is_catch_context) {
+ CALL_HEAP_FUNCTION(Heap::AllocateWithContext(*previous,
+ *extension,
+ is_catch_context),
+ Context);
+}
+
+
+Handle<Struct> Factory::NewStruct(InstanceType type) {
+ CALL_HEAP_FUNCTION(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;
+ 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<Proxy> wrapper = Factory::NewProxy(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_wrapper(*wrapper);
+ script->set_line_ends(Heap::undefined_value());
+ script->set_eval_from_function(Heap::undefined_value());
+ script->set_eval_from_instructions_offset(Smi::FromInt(0));
+
+ return script;
+}
+
+
+Handle<Proxy> Factory::NewProxy(Address addr, PretenureFlag pretenure) {
+ CALL_HEAP_FUNCTION(Heap::AllocateProxy(addr, pretenure), Proxy);
+}
+
+
+Handle<Proxy> Factory::NewProxy(const AccessorDescriptor* desc) {
+ return NewProxy((Address) desc, TENURED);
+}
+
+
+Handle<ByteArray> Factory::NewByteArray(int length, PretenureFlag pretenure) {
+ ASSERT(0 <= length);
+ CALL_HEAP_FUNCTION(Heap::AllocateByteArray(length, pretenure), ByteArray);
+}
+
+
+Handle<PixelArray> Factory::NewPixelArray(int length,
+ uint8_t* external_pointer,
+ PretenureFlag pretenure) {
+ ASSERT(0 <= length);
+ CALL_HEAP_FUNCTION(Heap::AllocatePixelArray(length,
+ external_pointer,
+ pretenure), PixelArray);
+}
+
+
+Handle<Map> Factory::NewMap(InstanceType type, int instance_size) {
+ CALL_HEAP_FUNCTION(Heap::AllocateMap(type, instance_size), Map);
+}
+
+
+Handle<JSObject> Factory::NewFunctionPrototype(Handle<JSFunction> function) {
+ CALL_HEAP_FUNCTION(Heap::AllocateFunctionPrototype(*function), JSObject);
+}
+
+
+Handle<Map> Factory::CopyMapDropDescriptors(Handle<Map> src) {
+ CALL_HEAP_FUNCTION(src->CopyDropDescriptors(), Map);
+}
+
+
+Handle<Map> Factory::CopyMap(Handle<Map> src,
+ int extra_inobject_properties) {
+ Handle<Map> copy = CopyMapDropDescriptors(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);
+ return copy;
+}
+
+Handle<Map> Factory::CopyMapDropTransitions(Handle<Map> src) {
+ CALL_HEAP_FUNCTION(src->CopyDropTransitions(), Map);
+}
+
+
+Handle<FixedArray> Factory::CopyFixedArray(Handle<FixedArray> array) {
+ CALL_HEAP_FUNCTION(array->Copy(), FixedArray);
+}
+
+
+Handle<JSFunction> Factory::BaseNewFunctionFromBoilerplate(
+ Handle<JSFunction> boilerplate,
+ Handle<Map> function_map) {
+ ASSERT(boilerplate->IsBoilerplate());
+ ASSERT(!boilerplate->has_initial_map());
+ ASSERT(!boilerplate->has_prototype());
+ ASSERT(boilerplate->properties() == Heap::empty_fixed_array());
+ ASSERT(boilerplate->elements() == Heap::empty_fixed_array());
+ CALL_HEAP_FUNCTION(Heap::AllocateFunction(*function_map,
+ boilerplate->shared(),
+ Heap::the_hole_value()),
+ JSFunction);
+}
+
+
+Handle<JSFunction> Factory::NewFunctionFromBoilerplate(
+ Handle<JSFunction> boilerplate,
+ Handle<Context> context) {
+ Handle<JSFunction> result =
+ BaseNewFunctionFromBoilerplate(boilerplate, Top::function_map());
+ result->set_context(*context);
+ int number_of_literals = boilerplate->NumberOfLiterals();
+ Handle<FixedArray> literals =
+ Factory::NewFixedArray(number_of_literals, TENURED);
+ if (number_of_literals > 0) {
+ // Store the object, regexp and array functions in the literals
+ // array prefix. These functions will be used when creating
+ // object, regexp and array literals in this function.
+ literals->set(JSFunction::kLiteralGlobalContextIndex,
+ context->global_context());
+ }
+ result->set_literals(*literals);
+ ASSERT(!result->IsBoilerplate());
+ return result;
+}
+
+
+Handle<Object> Factory::NewNumber(double value,
+ PretenureFlag pretenure) {
+ CALL_HEAP_FUNCTION(Heap::NumberFromDouble(value, pretenure), Object);
+}
+
+
+Handle<Object> Factory::NewNumberFromInt(int value) {
+ CALL_HEAP_FUNCTION(Heap::NumberFromInt32(value), Object);
+}
+
+
+Handle<Object> Factory::NewNumberFromUint(uint32_t value) {
+ CALL_HEAP_FUNCTION(Heap::NumberFromUint32(value), Object);
+}
+
+
+Handle<JSObject> Factory::NewNeanderObject() {
+ CALL_HEAP_FUNCTION(Heap::AllocateJSObjectFromMap(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 = Factory::NewFixedArray(args.length());
+ for (int i = 0; i < args.length(); i++) {
+ array->set(i, *args[i]);
+ }
+ Handle<JSArray> object = Factory::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<Object> Factory::NewError(const char* maker,
+ const char* type,
+ Handle<JSArray> args) {
+ Handle<String> make_str = Factory::LookupAsciiSymbol(maker);
+ Handle<Object> fun_obj(Top::builtins()->GetProperty(*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 Factory::undefined_value();
+ Handle<JSFunction> fun = Handle<JSFunction>::cast(fun_obj);
+ Handle<Object> type_obj = Factory::LookupAsciiSymbol(type);
+ Object** argv[2] = { type_obj.location(),
+ Handle<Object>::cast(args).location() };
+
+ // 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,
+ Top::builtins(),
+ 2,
+ 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 = Factory::LookupAsciiSymbol(constructor);
+ Handle<JSFunction> fun =
+ Handle<JSFunction>(
+ JSFunction::cast(
+ Top::builtins()->GetProperty(*constr)));
+ Object** argv[1] = { Handle<Object>::cast(message).location() };
+
+ // 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,
+ Top::builtins(),
+ 1,
+ 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());
+ 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::NewFunctionBoilerplate(Handle<String> name,
+ int number_of_literals,
+ bool contains_array_literal,
+ Handle<Code> code) {
+ Handle<JSFunction> function = NewFunctionBoilerplate(name);
+ function->set_code(*code);
+ 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
+ // object, regexp and array constructor functions.
+ if (number_of_literals > 0 || contains_array_literal) {
+ literals_array_size += JSFunction::kLiteralsPrefixSize;
+ }
+ Handle<FixedArray> literals =
+ Factory::NewFixedArray(literals_array_size, TENURED);
+ function->set_literals(*literals);
+ ASSERT(!function->has_initial_map());
+ ASSERT(!function->has_prototype());
+ return function;
+}
+
+
+Handle<JSFunction> Factory::NewFunctionBoilerplate(Handle<String> name) {
+ Handle<SharedFunctionInfo> shared = NewSharedFunctionInfo(name);
+ CALL_HEAP_FUNCTION(Heap::AllocateFunction(Heap::boilerplate_function_map(),
+ *shared,
+ Heap::the_hole_value()),
+ JSFunction);
+}
+
+
+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);
+
+ function->set_code(*code);
+
+ if (force_initial_map ||
+ type != JS_OBJECT_TYPE ||
+ instance_size != JSObject::kHeaderSize) {
+ Handle<Map> initial_map = NewMap(type, instance_size);
+ 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);
+ SetProperty(prototype, Factory::constructor_symbol(), function, DONT_ENUM);
+ return function;
+}
+
+
+Handle<Code> Factory::NewCode(const CodeDesc& desc,
+ ZoneScopeInfo* sinfo,
+ Code::Flags flags,
+ Handle<Object> self_ref) {
+ CALL_HEAP_FUNCTION(Heap::CreateCode(desc, sinfo, flags, self_ref), Code);
+}
+
+
+Handle<Code> Factory::CopyCode(Handle<Code> code) {
+ CALL_HEAP_FUNCTION(Heap::CopyCode(*code), Code);
+}
+
+
+static inline Object* DoCopyInsert(DescriptorArray* array,
+ String* key,
+ Object* value,
+ PropertyAttributes attributes) {
+ CallbacksDescriptor desc(key, value, attributes);
+ Object* obj = array->CopyInsert(&desc, REMOVE_TRANSITIONS);
+ return obj;
+}
+
+
+// Allocate the new array.
+Handle<DescriptorArray> Factory::CopyAppendProxyDescriptor(
+ Handle<DescriptorArray> array,
+ Handle<String> key,
+ Handle<Object> value,
+ PropertyAttributes attributes) {
+ CALL_HEAP_FUNCTION(DoCopyInsert(*array, *key, *value, attributes),
+ DescriptorArray);
+}
+
+
+Handle<String> Factory::SymbolFromString(Handle<String> value) {
+ CALL_HEAP_FUNCTION(Heap::LookupSymbol(*value), String);
+}
+
+
+Handle<DescriptorArray> Factory::CopyAppendCallbackDescriptors(
+ Handle<DescriptorArray> array,
+ Handle<Object> descriptors) {
+ v8::NeanderArray callbacks(descriptors);
+ int nof_callbacks = callbacks.length();
+ Handle<DescriptorArray> result =
+ NewDescriptorArray(array->number_of_descriptors() + nof_callbacks);
+
+ // Number of descriptors added to the result so far.
+ int descriptor_count = 0;
+
+ // Copy the descriptors from the array.
+ for (int i = 0; i < array->number_of_descriptors(); i++) {
+ if (array->GetType(i) != NULL_DESCRIPTOR) {
+ result->CopyFrom(descriptor_count++, *array, i);
+ }
+ }
+
+ // Number of duplicates detected.
+ int duplicates = 0;
+
+ // Fill in new callback descriptors. Process the callbacks from
+ // back to front so that the last callback with a given name takes
+ // precedence over previously added callbacks with that name.
+ for (int i = nof_callbacks - 1; i >= 0; i--) {
+ Handle<AccessorInfo> entry =
+ Handle<AccessorInfo>(AccessorInfo::cast(callbacks.get(i)));
+ // Ensure the key is a symbol before writing into the instance descriptor.
+ Handle<String> key =
+ SymbolFromString(Handle<String>(String::cast(entry->name())));
+ // Check if a descriptor with this name already exists before writing.
+ if (result->LinearSearch(*key, descriptor_count) ==
+ DescriptorArray::kNotFound) {
+ CallbacksDescriptor desc(*key, *entry, entry->property_attributes());
+ result->Set(descriptor_count, &desc);
+ descriptor_count++;
+ } else {
+ duplicates++;
+ }
+ }
+
+ // If duplicates were detected, allocate a result of the right size
+ // and transfer the elements.
+ if (duplicates > 0) {
+ int number_of_descriptors = result->number_of_descriptors() - duplicates;
+ Handle<DescriptorArray> new_result =
+ NewDescriptorArray(number_of_descriptors);
+ for (int i = 0; i < number_of_descriptors; i++) {
+ new_result->CopyFrom(i, *result, i);
+ }
+ result = new_result;
+ }
+
+ // Sort the result before returning.
+ result->Sort();
+ return result;
+}
+
+
+Handle<JSObject> Factory::NewJSObject(Handle<JSFunction> constructor,
+ PretenureFlag pretenure) {
+ CALL_HEAP_FUNCTION(Heap::AllocateJSObject(*constructor, pretenure), JSObject);
+}
+
+
+Handle<GlobalObject> Factory::NewGlobalObject(
+ Handle<JSFunction> constructor) {
+ CALL_HEAP_FUNCTION(Heap::AllocateGlobalObject(*constructor),
+ GlobalObject);
+}
+
+
+
+Handle<JSObject> Factory::NewJSObjectFromMap(Handle<Map> map) {
+ CALL_HEAP_FUNCTION(Heap::AllocateJSObjectFromMap(*map, NOT_TENURED),
+ JSObject);
+}
+
+
+Handle<JSArray> Factory::NewJSArray(int length,
+ PretenureFlag pretenure) {
+ Handle<JSObject> obj = NewJSObject(Top::array_function(), pretenure);
+ CALL_HEAP_FUNCTION(Handle<JSArray>::cast(obj)->Initialize(length), JSArray);
+}
+
+
+Handle<JSArray> Factory::NewJSArrayWithElements(Handle<FixedArray> elements,
+ PretenureFlag pretenure) {
+ Handle<JSArray> result =
+ Handle<JSArray>::cast(NewJSObject(Top::array_function(), pretenure));
+ result->SetContent(*elements);
+ return result;
+}
+
+
+Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo(Handle<String> name) {
+ CALL_HEAP_FUNCTION(Heap::AllocateSharedFunctionInfo(*name),
+ SharedFunctionInfo);
+}
+
+
+Handle<String> Factory::NumberToString(Handle<Object> number) {
+ CALL_HEAP_FUNCTION(Heap::NumberToString(*number), String);
+}
+
+
+Handle<NumberDictionary> Factory::DictionaryAtNumberPut(
+ Handle<NumberDictionary> dictionary,
+ uint32_t key,
+ Handle<Object> value) {
+ CALL_HEAP_FUNCTION(dictionary->AtNumberPut(key, *value), NumberDictionary);
+}
+
+
+Handle<JSFunction> Factory::NewFunctionHelper(Handle<String> name,
+ Handle<Object> prototype) {
+ Handle<SharedFunctionInfo> function_share = NewSharedFunctionInfo(name);
+ CALL_HEAP_FUNCTION(Heap::AllocateFunction(*Top::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(Top::context()->global_context());
+ return fun;
+}
+
+
+Handle<Object> Factory::ToObject(Handle<Object> object,
+ Handle<Context> global_context) {
+ CALL_HEAP_FUNCTION(object->ToObject(*global_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(
+ Factory::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(Factory::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(Heap::AllocateArgumentsObject(*callee, length), JSObject);
+}
+
+
+Handle<JSFunction> Factory::CreateApiFunction(
+ Handle<FunctionTemplateInfo> obj, ApiInstanceType instance_type) {
+ Handle<Code> code = Handle<Code>(Builtins::builtin(Builtins::HandleApiCall));
+
+ 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 =
+ Factory::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()->DontAdaptArguments();
+
+ // Recursively copy parent templates' accessors, 'data' may be modified.
+ Handle<DescriptorArray> array =
+ Handle<DescriptorArray>(map->instance_descriptors());
+ while (true) {
+ Handle<Object> props = Handle<Object>(obj->property_accessors());
+ if (!props->IsUndefined()) {
+ array = Factory::CopyAppendCallbackDescriptors(array, props);
+ }
+ Handle<Object> parent = Handle<Object>(obj->parent_template());
+ if (parent->IsUndefined()) break;
+ obj = Handle<FunctionTemplateInfo>::cast(parent);
+ }
+ if (!array->IsEmpty()) {
+ map->set_instance_descriptors(*array);
+ }
+
+ return result;
+}
+
+
+Handle<MapCache> Factory::NewMapCache(int at_least_space_for) {
+ CALL_HEAP_FUNCTION(MapCache::Allocate(at_least_space_for), MapCache);
+}
+
+
+static Object* UpdateMapCacheWith(Context* context,
+ FixedArray* keys,
+ Map* map) {
+ Object* result = MapCache::cast(context->map_cache())->Put(keys, map);
+ if (!result->IsFailure()) 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(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 global 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));
+ 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);
+
+ store->set(JSRegExp::kTagIndex, Smi::FromInt(type));
+ store->set(JSRegExp::kSourceIndex, *source);
+ store->set(JSRegExp::kFlagsIndex, Smi::FromInt(flags.value()));
+ store->set(JSRegExp::kIrregexpASCIICodeIndex, Heap::the_hole_value());
+ store->set(JSRegExp::kIrregexpUC16CodeIndex, Heap::the_hole_value());
+ 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 = Handle<Object>(desc->instance_template());
+ if (!instance_template->IsUndefined()) {
+ Execution::ConfigureInstance(instance,
+ instance_template,
+ pending_exception);
+ } else {
+ *pending_exception = false;
+ }
+}
+
+
+} } // namespace v8::internal