Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/src/factory.h b/src/factory.h
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+++ b/src/factory.h
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+// 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.
+
+#ifndef V8_FACTORY_H_
+#define V8_FACTORY_H_
+
+#include "globals.h"
+#include "heap.h"
+#include "zone-inl.h"
+
+namespace v8 {
+namespace internal {
+
+
+// Interface for handle based allocation.
+
+class Factory : public AllStatic {
+ public:
+ // Allocate a new fixed array with undefined entries.
+ static Handle<FixedArray> NewFixedArray(
+ int size,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ // Allocate a new fixed array with non-existing entries (the hole).
+ static Handle<FixedArray> NewFixedArrayWithHoles(int size);
+
+ static Handle<NumberDictionary> NewNumberDictionary(int at_least_space_for);
+
+ static Handle<StringDictionary> NewStringDictionary(int at_least_space_for);
+
+ static Handle<DescriptorArray> NewDescriptorArray(int number_of_descriptors);
+
+ static Handle<String> LookupSymbol(Vector<const char> str);
+ static Handle<String> LookupAsciiSymbol(const char* str) {
+ return LookupSymbol(CStrVector(str));
+ }
+
+
+ // String creation functions. Most of the string creation functions take
+ // a Heap::PretenureFlag argument to optionally request that they be
+ // allocated in the old generation. The pretenure flag defaults to
+ // DONT_TENURE.
+ //
+ // Creates a new String object. There are two String encodings: ASCII and
+ // two byte. One should choose between the three string factory functions
+ // based on the encoding of the string buffer that the string is
+ // initialized from.
+ // - ...FromAscii initializes the string from a buffer that is ASCII
+ // encoded (it does not check that the buffer is ASCII encoded) and
+ // the result will be ASCII encoded.
+ // - ...FromUtf8 initializes the string from a buffer that is UTF-8
+ // encoded. If the characters are all single-byte characters, the
+ // result will be ASCII encoded, otherwise it will converted to two
+ // byte.
+ // - ...FromTwoByte initializes the string from a buffer that is two
+ // byte encoded. If the characters are all single-byte characters,
+ // the result will be converted to ASCII, otherwise it will be left as
+ // two byte.
+ //
+ // ASCII strings are pretenured when used as keys in the SourceCodeCache.
+ static Handle<String> NewStringFromAscii(
+ Vector<const char> str,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ // UTF8 strings are pretenured when used for regexp literal patterns and
+ // flags in the parser.
+ static Handle<String> NewStringFromUtf8(
+ Vector<const char> str,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ static Handle<String> NewStringFromTwoByte(Vector<const uc16> str,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ // Allocates and partially initializes a TwoByte String. The characters of
+ // the string are uninitialized. Currently used in regexp code only, where
+ // they are pretenured.
+ static Handle<String> NewRawTwoByteString(
+ int length,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ // Create a new cons string object which consists of a pair of strings.
+ static Handle<String> NewConsString(Handle<String> first,
+ Handle<String> second);
+
+ // Create a new sliced string object which represents a substring of a
+ // backing string.
+ static Handle<String> NewStringSlice(Handle<String> str,
+ int begin,
+ int end);
+
+ // Creates a new external String object. There are two String encodings
+ // in the system: ASCII and two byte. Unlike other String types, it does
+ // not make sense to have a UTF-8 factory function for external strings,
+ // because we cannot change the underlying buffer.
+ static Handle<String> NewExternalStringFromAscii(
+ ExternalAsciiString::Resource* resource);
+ static Handle<String> NewExternalStringFromTwoByte(
+ ExternalTwoByteString::Resource* resource);
+
+ // Create a global (but otherwise uninitialized) context.
+ static Handle<Context> NewGlobalContext();
+
+ // Create a function context.
+ static Handle<Context> NewFunctionContext(int length,
+ Handle<JSFunction> closure);
+
+ // Create a 'with' context.
+ static Handle<Context> NewWithContext(Handle<Context> previous,
+ Handle<JSObject> extension,
+ bool is_catch_context);
+
+ // Return the Symbol matching the passed in string.
+ static Handle<String> SymbolFromString(Handle<String> value);
+
+ // Allocate a new struct. The struct is pretenured (allocated directly in
+ // the old generation).
+ static Handle<Struct> NewStruct(InstanceType type);
+
+ static Handle<AccessorInfo> NewAccessorInfo();
+
+ static Handle<Script> NewScript(Handle<String> source);
+
+ // Proxies are pretenured when allocated by the bootstrapper.
+ static Handle<Proxy> NewProxy(Address addr,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ // Allocate a new proxy. The proxy is pretenured (allocated directly in
+ // the old generation).
+ static Handle<Proxy> NewProxy(const AccessorDescriptor* proxy);
+
+ static Handle<ByteArray> NewByteArray(int length,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ static Handle<PixelArray> NewPixelArray(int length,
+ uint8_t* external_pointer,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ static Handle<Map> NewMap(InstanceType type, int instance_size);
+
+ static Handle<JSObject> NewFunctionPrototype(Handle<JSFunction> function);
+
+ static Handle<Map> CopyMapDropDescriptors(Handle<Map> map);
+
+ // Copy the map adding more inobject properties if possible without
+ // overflowing the instance size.
+ static Handle<Map> CopyMap(Handle<Map> map, int extra_inobject_props);
+
+ static Handle<Map> CopyMapDropTransitions(Handle<Map> map);
+
+ static Handle<FixedArray> CopyFixedArray(Handle<FixedArray> array);
+
+ // Numbers (eg, literals) are pretenured by the parser.
+ static Handle<Object> NewNumber(double value,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ static Handle<Object> NewNumberFromInt(int value);
+ static Handle<Object> NewNumberFromUint(uint32_t value);
+
+ // These objects are used by the api to create env-independent data
+ // structures in the heap.
+ static Handle<JSObject> NewNeanderObject();
+
+ static Handle<JSObject> NewArgumentsObject(Handle<Object> callee, int length);
+
+ // JS objects are pretenured when allocated by the bootstrapper and
+ // runtime.
+ static Handle<JSObject> NewJSObject(Handle<JSFunction> constructor,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ // Global objects are pretenured.
+ static Handle<GlobalObject> NewGlobalObject(Handle<JSFunction> constructor);
+
+ // JS objects are pretenured when allocated by the bootstrapper and
+ // runtime.
+ static Handle<JSObject> NewJSObjectFromMap(Handle<Map> map);
+
+ // JS arrays are pretenured when allocated by the parser.
+ static Handle<JSArray> NewJSArray(int init_length,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ static Handle<JSArray> NewJSArrayWithElements(
+ Handle<FixedArray> elements,
+ PretenureFlag pretenure = NOT_TENURED);
+
+ static Handle<JSFunction> NewFunction(Handle<String> name,
+ Handle<Object> prototype);
+
+ static Handle<JSFunction> NewFunction(Handle<Object> super, bool is_global);
+
+ static Handle<JSFunction> NewFunctionFromBoilerplate(
+ Handle<JSFunction> boilerplate,
+ Handle<Context> context);
+
+ static Handle<Code> NewCode(const CodeDesc& desc,
+ ZoneScopeInfo* sinfo,
+ Code::Flags flags,
+ Handle<Object> self_reference);
+
+ static Handle<Code> CopyCode(Handle<Code> code);
+
+ static Handle<Object> ToObject(Handle<Object> object,
+ Handle<Context> global_context);
+
+ // Interface for creating error objects.
+
+ static Handle<Object> NewError(const char* maker, const char* type,
+ Handle<JSArray> args);
+ static Handle<Object> NewError(const char* maker, const char* type,
+ Vector< Handle<Object> > args);
+ static Handle<Object> NewError(const char* type,
+ Vector< Handle<Object> > args);
+ static Handle<Object> NewError(Handle<String> message);
+ static Handle<Object> NewError(const char* constructor,
+ Handle<String> message);
+
+ static Handle<Object> NewTypeError(const char* type,
+ Vector< Handle<Object> > args);
+ static Handle<Object> NewTypeError(Handle<String> message);
+
+ static Handle<Object> NewRangeError(const char* type,
+ Vector< Handle<Object> > args);
+ static Handle<Object> NewRangeError(Handle<String> message);
+
+ static Handle<Object> NewSyntaxError(const char* type, Handle<JSArray> args);
+ static Handle<Object> NewSyntaxError(Handle<String> message);
+
+ static Handle<Object> NewReferenceError(const char* type,
+ Vector< Handle<Object> > args);
+ static Handle<Object> NewReferenceError(Handle<String> message);
+
+ static Handle<Object> NewEvalError(const char* type,
+ Vector< Handle<Object> > args);
+
+
+ static Handle<JSFunction> NewFunction(Handle<String> name,
+ InstanceType type,
+ int instance_size,
+ Handle<Code> code,
+ bool force_initial_map);
+
+ static Handle<JSFunction> NewFunctionBoilerplate(Handle<String> name,
+ int number_of_literals,
+ bool contains_array_literal,
+ Handle<Code> code);
+
+ static Handle<JSFunction> NewFunctionBoilerplate(Handle<String> name);
+
+ static Handle<JSFunction> NewFunction(Handle<Map> function_map,
+ Handle<SharedFunctionInfo> shared, Handle<Object> prototype);
+
+
+ static Handle<JSFunction> NewFunctionWithPrototype(Handle<String> name,
+ InstanceType type,
+ int instance_size,
+ Handle<JSObject> prototype,
+ Handle<Code> code,
+ bool force_initial_map);
+
+ static Handle<DescriptorArray> CopyAppendProxyDescriptor(
+ Handle<DescriptorArray> array,
+ Handle<String> key,
+ Handle<Object> value,
+ PropertyAttributes attributes);
+
+ static Handle<String> NumberToString(Handle<Object> number);
+
+ enum ApiInstanceType {
+ JavaScriptObject,
+ InnerGlobalObject,
+ OuterGlobalObject
+ };
+
+ static Handle<JSFunction> CreateApiFunction(
+ Handle<FunctionTemplateInfo> data,
+ ApiInstanceType type = JavaScriptObject);
+
+ static Handle<JSFunction> InstallMembers(Handle<JSFunction> function);
+
+ // Installs interceptors on the instance. 'desc' is a function template,
+ // and instance is an object instance created by the function of this
+ // function template.
+ static void ConfigureInstance(Handle<FunctionTemplateInfo> desc,
+ Handle<JSObject> instance,
+ bool* pending_exception);
+
+#define ROOT_ACCESSOR(type, name, camel_name) \
+ static inline Handle<type> name() { \
+ return Handle<type>(bit_cast<type**, Object**>( \
+ &Heap::roots_[Heap::k##camel_name##RootIndex])); \
+ }
+ ROOT_LIST(ROOT_ACCESSOR)
+#undef ROOT_ACCESSOR_ACCESSOR
+
+#define SYMBOL_ACCESSOR(name, str) \
+ static inline Handle<String> name() { \
+ return Handle<String>(bit_cast<String**, Object**>( \
+ &Heap::roots_[Heap::k##name##RootIndex])); \
+ }
+ SYMBOL_LIST(SYMBOL_ACCESSOR)
+#undef SYMBOL_ACCESSOR
+
+ static Handle<String> hidden_symbol() {
+ return Handle<String>(&Heap::hidden_symbol_);
+ }
+
+ static Handle<SharedFunctionInfo> NewSharedFunctionInfo(Handle<String> name);
+
+ static Handle<NumberDictionary> DictionaryAtNumberPut(
+ Handle<NumberDictionary>,
+ uint32_t key,
+ Handle<Object> value);
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+ static Handle<DebugInfo> NewDebugInfo(Handle<SharedFunctionInfo> shared);
+#endif
+
+ // Return a map using the map cache in the global context.
+ // The key the an ordered set of property names.
+ static Handle<Map> ObjectLiteralMapFromCache(Handle<Context> context,
+ Handle<FixedArray> keys);
+
+ // Creates a new FixedArray that holds the data associated with the
+ // atom regexp and stores it in the regexp.
+ static void SetRegExpAtomData(Handle<JSRegExp> regexp,
+ JSRegExp::Type type,
+ Handle<String> source,
+ JSRegExp::Flags flags,
+ Handle<Object> match_pattern);
+
+ // Creates a new FixedArray that holds the data associated with the
+ // irregexp regexp and stores it in the regexp.
+ static void SetRegExpIrregexpData(Handle<JSRegExp> regexp,
+ JSRegExp::Type type,
+ Handle<String> source,
+ JSRegExp::Flags flags,
+ int capture_count);
+
+ private:
+ static Handle<JSFunction> NewFunctionHelper(Handle<String> name,
+ Handle<Object> prototype);
+
+ static Handle<DescriptorArray> CopyAppendCallbackDescriptors(
+ Handle<DescriptorArray> array,
+ Handle<Object> descriptors);
+
+ static Handle<JSFunction> BaseNewFunctionFromBoilerplate(
+ Handle<JSFunction> boilerplate,
+ Handle<Map> function_map);
+
+ // Create a new map cache.
+ static Handle<MapCache> NewMapCache(int at_least_space_for);
+
+ // Update the map cache in the global context with (keys, map)
+ static Handle<MapCache> AddToMapCache(Handle<Context> context,
+ Handle<FixedArray> keys,
+ Handle<Map> map);
+};
+
+
+} } // namespace v8::internal
+
+#endif // V8_FACTORY_H_