39877060ee
Optimizes byteLength, byteOffset, buffer and other properties on ArrayBuffer, typed arrays and DataView into simple field loads. Some unification with the way Array.length and String.length are treated. R=verwaest@chromium.org Review URL: https://codereview.chromium.org/24360019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
167 lines
7.6 KiB
C++
167 lines
7.6 KiB
C++
// 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.
|
|
|
|
#ifndef V8_ACCESSORS_H_
|
|
#define V8_ACCESSORS_H_
|
|
|
|
#include "allocation.h"
|
|
#include "v8globals.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
// The list of accessor descriptors. This is a second-order macro
|
|
// taking a macro to be applied to all accessor descriptor names.
|
|
#define ACCESSOR_DESCRIPTOR_LIST(V) \
|
|
V(FunctionPrototype) \
|
|
V(FunctionLength) \
|
|
V(FunctionName) \
|
|
V(FunctionArguments) \
|
|
V(FunctionCaller) \
|
|
V(ArrayLength) \
|
|
V(StringLength) \
|
|
V(ScriptSource) \
|
|
V(ScriptName) \
|
|
V(ScriptId) \
|
|
V(ScriptLineOffset) \
|
|
V(ScriptColumnOffset) \
|
|
V(ScriptData) \
|
|
V(ScriptType) \
|
|
V(ScriptCompilationType) \
|
|
V(ScriptLineEnds) \
|
|
V(ScriptContextData) \
|
|
V(ScriptEvalFromScript) \
|
|
V(ScriptEvalFromScriptPosition) \
|
|
V(ScriptEvalFromFunctionName)
|
|
|
|
// Accessors contains all predefined proxy accessors.
|
|
|
|
class Accessors : public AllStatic {
|
|
public:
|
|
// Accessor descriptors.
|
|
#define ACCESSOR_DESCRIPTOR_DECLARATION(name) \
|
|
static const AccessorDescriptor name;
|
|
ACCESSOR_DESCRIPTOR_LIST(ACCESSOR_DESCRIPTOR_DECLARATION)
|
|
#undef ACCESSOR_DESCRIPTOR_DECLARATION
|
|
|
|
enum DescriptorId {
|
|
#define ACCESSOR_DESCRIPTOR_DECLARATION(name) \
|
|
k##name,
|
|
ACCESSOR_DESCRIPTOR_LIST(ACCESSOR_DESCRIPTOR_DECLARATION)
|
|
#undef ACCESSOR_DESCRIPTOR_DECLARATION
|
|
descriptorCount
|
|
};
|
|
|
|
// Accessor functions called directly from the runtime system.
|
|
static Handle<Object> FunctionSetPrototype(Handle<JSFunction> object,
|
|
Handle<Object> value);
|
|
static Handle<Object> FunctionGetPrototype(Handle<JSFunction> object);
|
|
static Handle<Object> FunctionGetArguments(Handle<JSFunction> object);
|
|
|
|
// Accessor infos.
|
|
static Handle<AccessorInfo> MakeModuleExport(
|
|
Handle<String> name, int index, PropertyAttributes attributes);
|
|
|
|
// Returns true for properties that are accessors to object fields.
|
|
// If true, *object_offset contains offset of object field.
|
|
static bool IsJSObjectFieldAccessor(
|
|
Handle<Map> map, Handle<String> name,
|
|
int* object_offset);
|
|
|
|
|
|
private:
|
|
// Accessor functions only used through the descriptor.
|
|
static MaybeObject* FunctionSetPrototype(Isolate* isolate,
|
|
JSObject* object,
|
|
Object*,
|
|
void*);
|
|
static MaybeObject* FunctionGetPrototype(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* FunctionGetLength(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* FunctionGetName(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* FunctionGetArguments(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* FunctionGetCaller(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ArraySetLength(Isolate* isolate,
|
|
JSObject* object,
|
|
Object*,
|
|
void*);
|
|
static MaybeObject* ArrayGetLength(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* StringGetLength(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* ScriptGetName(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* ScriptGetId(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* ScriptGetSource(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* ScriptGetLineOffset(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ScriptGetColumnOffset(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ScriptGetData(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* ScriptGetType(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* ScriptGetCompilationType(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ScriptGetLineEnds(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ScriptGetContextData(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ScriptGetEvalFromScript(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ScriptGetEvalFromScriptPosition(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
static MaybeObject* ScriptGetEvalFromFunctionName(Isolate* isolate,
|
|
Object* object,
|
|
void*);
|
|
|
|
// Helper functions.
|
|
static Object* FlattenNumber(Isolate* isolate, Object* value);
|
|
static MaybeObject* IllegalSetter(Isolate* isolate,
|
|
JSObject*,
|
|
Object*,
|
|
void*);
|
|
static Object* IllegalGetAccessor(Isolate* isolate, Object* object, void*);
|
|
static MaybeObject* ReadOnlySetAccessor(Isolate* isolate,
|
|
JSObject*,
|
|
Object* value,
|
|
void*);
|
|
};
|
|
|
|
} } // namespace v8::internal
|
|
|
|
#endif // V8_ACCESSORS_H_
|