source: webkit/trunk/JavaScriptCore/kjs/InternalFunction.cpp@ 36821

Last change on this file since 36821 was 36766, checked in by [email protected], 17 years ago

JavaScriptCore:

2008-09-22 Maciej Stachowiak <[email protected]>

Reviewed by Cameron Zwarich.


  • speed up instanceof operator by replacing implementsHasInstance method with a TypeInfo flag

Partial work towards <https://bugs.webkit.org/show_bug.cgi?id=20818>


2.2% speedup on EarleyBoyer benchmark.

  • API/JSCallbackConstructor.cpp:
  • API/JSCallbackConstructor.h: (JSC::JSCallbackConstructor::createStructureID):
  • API/JSCallbackFunction.cpp:
  • API/JSCallbackFunction.h: (JSC::JSCallbackFunction::createStructureID):
  • API/JSCallbackObject.h: (JSC::JSCallbackObject::createStructureID):
  • API/JSCallbackObjectFunctions.h: (JSC::::hasInstance):
  • API/JSValueRef.cpp: (JSValueIsInstanceOfConstructor):
  • JavaScriptCore.exp:
  • VM/Machine.cpp: (JSC::Machine::privateExecute): (JSC::Machine::cti_op_instanceof):
  • kjs/InternalFunction.cpp:
  • kjs/InternalFunction.h: (JSC::InternalFunction::createStructureID):
  • kjs/JSObject.cpp:
  • kjs/JSObject.h:
  • kjs/TypeInfo.h: (JSC::TypeInfo::implementsHasInstance):

WebCore:

2008-09-22 Maciej Stachowiak <[email protected]>

Reviewed by Cameron Zwarich.

  • speed up instanceof operator by replacing implementsHasInstance method with a TypeInfo flag

Partial work towards <https://bugs.webkit.org/show_bug.cgi?id=20818>


2.2% speedup on EarleyBoyer benchmark.

  • bindings/js/JSQuarantinedObjectWrapper.cpp:
  • bindings/js/JSQuarantinedObjectWrapper.h: (WebCore::JSQuarantinedObjectWrapper::createStructureID):
  • bindings/scripts/CodeGeneratorJS.pm:
  • Property svn:eol-style set to native
File size: 1.9 KB
Line 
1/*
2 * Copyright (C) 1999-2002 Harri Porten ([email protected])
3 * Copyright (C) 2001 Peter Kelly ([email protected])
4 * Copyright (C) 2004, 2007, 2008 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23#include "config.h"
24#include "InternalFunction.h"
25
26#include "FunctionPrototype.h"
27#include "JSString.h"
28
29namespace JSC {
30
31ASSERT_CLASS_FITS_IN_CELL(InternalFunction);
32
33const ClassInfo InternalFunction::info = { "Function", 0, 0, 0 };
34
35InternalFunction::InternalFunction(ExecState* exec)
36 : JSObject(exec->globalData().nullProtoStructureID)
37{
38 putDirect(exec->propertyNames().name, jsString(exec, exec->propertyNames().nullIdentifier.ustring()), DontDelete | ReadOnly | DontEnum);
39}
40
41InternalFunction::InternalFunction(ExecState* exec, PassRefPtr<StructureID> structure, const Identifier& name)
42 : JSObject(structure)
43{
44 putDirect(exec->propertyNames().name, jsString(exec, name.ustring()), DontDelete | ReadOnly | DontEnum);
45}
46
47const UString& InternalFunction::name(ExecState* exec)
48{
49 JSValue* v = getDirect(exec->propertyNames().name);
50 ASSERT(v->isString());
51 return static_cast<JSString*>(v)->value();
52}
53
54} // namespace JSC
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