Commit bc3ae3f9 authored by ggaren@apple.com's avatar ggaren@apple.com

Introduced JSWithScope, making all scope objects subclasses of JSScope

https://bugs.webkit.org/show_bug.cgi?id=95295

Reviewed by Filip Pizlo.

This is a step toward removing ScopeChainNode. With a uniform representation
for objects in the scope chain, we can move data from ScopeChainNode
into JSScope.

* CMakeLists.txt:
* GNUmakefile.list.am:
* JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
* JavaScriptCore.xcodeproj/project.pbxproj:
* Target.pri: Build!

* interpreter/Interpreter.cpp:
(JSC::Interpreter::privateExecute):
* jit/JITStubs.cpp:
(JSC::DEFINE_STUB_FUNCTION):
* llint/LLIntSlowPaths.cpp:
(JSC::LLInt::LLINT_SLOW_PATH_DECL): Use an explicit JSWithScope object
for 'with' statements. Since 'with' can put any object in the scope
chain, we'll need an adapter object to hold the data ScopeChainNode
currently holds.

* runtime/JSGlobalData.cpp:
(JSC::JSGlobalData::JSGlobalData):
* runtime/JSGlobalData.h:
(JSGlobalData): Support for JSWithScope.

* runtime/JSScope.cpp:
(JSC::JSScope::objectAtScope):
* runtime/JSScope.h: Check for and unwrap JSWithScope.

* runtime/JSType.h: Support for JSWithScope.

* runtime/StrictEvalActivation.cpp:
(JSC::StrictEvalActivation::StrictEvalActivation):
* runtime/StrictEvalActivation.h:
(StrictEvalActivation): Inherit from JSScope, to make the scope chain uniform.

* runtime/JSWithScope.cpp: Added.
(JSC::JSWithScope::visitChildren):
* runtime/JSWithScope.h: Added.
(JSWithScope):
(JSC::JSWithScope::create):
(JSC::JSWithScope::object):
(JSC::JSWithScope::createStructure):
(JSC::JSWithScope::JSWithScope): New adapter object. Since this object
is never exposed to scripts, it doesn't need any meaningful implementation
of property access or other callbacks.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@127010 268f45cc-cd09-0410-ab3c-d52691b4dbfc
parent b0256ffc
......@@ -208,6 +208,7 @@ SET(JavaScriptCore_SOURCES
runtime/JSPropertyNameIterator.cpp
runtime/JSSegmentedVariableObject.cpp
runtime/JSNameScope.cpp
runtime/JSWithScope.cpp
runtime/JSScope.cpp
runtime/JSString.cpp
runtime/JSStringJoiner.cpp
......
2012-08-28 Geoffrey Garen <ggaren@apple.com>
Introduced JSWithScope, making all scope objects subclasses of JSScope
https://bugs.webkit.org/show_bug.cgi?id=95295
Reviewed by Filip Pizlo.
This is a step toward removing ScopeChainNode. With a uniform representation
for objects in the scope chain, we can move data from ScopeChainNode
into JSScope.
* CMakeLists.txt:
* GNUmakefile.list.am:
* JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
* JavaScriptCore.xcodeproj/project.pbxproj:
* Target.pri: Build!
* interpreter/Interpreter.cpp:
(JSC::Interpreter::privateExecute):
* jit/JITStubs.cpp:
(JSC::DEFINE_STUB_FUNCTION):
* llint/LLIntSlowPaths.cpp:
(JSC::LLInt::LLINT_SLOW_PATH_DECL): Use an explicit JSWithScope object
for 'with' statements. Since 'with' can put any object in the scope
chain, we'll need an adapter object to hold the data ScopeChainNode
currently holds.
* runtime/JSGlobalData.cpp:
(JSC::JSGlobalData::JSGlobalData):
* runtime/JSGlobalData.h:
(JSGlobalData): Support for JSWithScope.
* runtime/JSScope.cpp:
(JSC::JSScope::objectAtScope):
* runtime/JSScope.h: Check for and unwrap JSWithScope.
* runtime/JSType.h: Support for JSWithScope.
* runtime/StrictEvalActivation.cpp:
(JSC::StrictEvalActivation::StrictEvalActivation):
* runtime/StrictEvalActivation.h:
(StrictEvalActivation): Inherit from JSScope, to make the scope chain uniform.
* runtime/JSWithScope.cpp: Added.
(JSC::JSWithScope::visitChildren):
* runtime/JSWithScope.h: Added.
(JSWithScope):
(JSC::JSWithScope::create):
(JSC::JSWithScope::object):
(JSC::JSWithScope::createStructure):
(JSC::JSWithScope::JSWithScope): New adapter object. Since this object
is never exposed to scripts, it doesn't need any meaningful implementation
of property access or other callbacks.
2012-08-29 Patrick Gansterer <paroga@webkit.org>
Unreviewed. Build fix for !ENABLE(JIT) after r126962.
......
......@@ -547,6 +547,7 @@ javascriptcore_sources += \
Source/JavaScriptCore/runtime/JSPropertyNameIterator.h \
Source/JavaScriptCore/runtime/JSSegmentedVariableObject.cpp \
Source/JavaScriptCore/runtime/JSSegmentedVariableObject.h \
Source/JavaScriptCore/runtime/JSWithScope.cpp \
Source/JavaScriptCore/runtime/JSNameScope.cpp \
Source/JavaScriptCore/runtime/JSNameScope.h \
Source/JavaScriptCore/runtime/JSScope.cpp \
......
......@@ -881,6 +881,14 @@
RelativePath="..\..\runtime\JSSegmentedVariableObject.h"
>
</File>
<File
RelativePath="..\..\runtime\JSWithScope.cpp"
>
</File>
<File
RelativePath="..\..\runtime\JSWithScope.h"
>
</File>
<File
RelativePath="..\..\runtime\JSNameScope.cpp"
>
......
......@@ -140,9 +140,9 @@
0F63944015C75F1D006A597C /* DFGStructureCheckHoistingPhase.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F63943C15C75F14006A597C /* DFGStructureCheckHoistingPhase.cpp */; };
0F63945415D07055006A597C /* ArrayProfile.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F63945115D07051006A597C /* ArrayProfile.cpp */; };
0F63945515D07057006A597C /* ArrayProfile.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F63945215D07051006A597C /* ArrayProfile.h */; settings = {ATTRIBUTES = (Private, ); }; };
0F63947815DCE34B006A597C /* DFGStructureAbstractValue.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F63947615DCE347006A597C /* DFGStructureAbstractValue.h */; settings = {ATTRIBUTES = (Private, ); }; };
0F63948415E48118006A597C /* DFGArrayMode.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F63948115E48114006A597C /* DFGArrayMode.cpp */; };
0F63948515E4811B006A597C /* DFGArrayMode.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F63948215E48114006A597C /* DFGArrayMode.h */; settings = {ATTRIBUTES = (Private, ); }; };
0F63947815DCE34B006A597C /* DFGStructureAbstractValue.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F63947615DCE347006A597C /* DFGStructureAbstractValue.h */; settings = {ATTRIBUTES = (Private, ); }; };
0F66E16B14DF3F1600B7B2E4 /* DFGAdjacencyList.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F66E16814DF3F1300B7B2E4 /* DFGAdjacencyList.h */; settings = {ATTRIBUTES = (Private, ); }; };
0F66E16C14DF3F1600B7B2E4 /* DFGEdge.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F66E16914DF3F1300B7B2E4 /* DFGEdge.h */; settings = {ATTRIBUTES = (Private, ); }; };
0F766D2815A8CC1E008F363E /* JITStubRoutine.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F766D2615A8CC1B008F363E /* JITStubRoutine.cpp */; };
......@@ -314,6 +314,8 @@
1440F8920A508B100005F061 /* JSCallbackFunction.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1440F8900A508B100005F061 /* JSCallbackFunction.cpp */; };
1440F8AF0A508D200005F061 /* JSCallbackConstructor.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1440F8AD0A508D200005F061 /* JSCallbackConstructor.cpp */; };
1440FCE40A51E46B0005F061 /* JSClassRef.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1440FCE20A51E46B0005F061 /* JSClassRef.cpp */; };
1442566115EDE98D0066A49B /* JSWithScope.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1442565F15EDE98D0066A49B /* JSWithScope.cpp */; };
1442566215EDE98D0066A49B /* JSWithScope.h in Headers */ = {isa = PBXBuildFile; fileRef = 1442566015EDE98D0066A49B /* JSWithScope.h */; settings = {ATTRIBUTES = (Private, ); }; };
14469DDE107EC7E700650446 /* Lookup.cpp in Sources */ = {isa = PBXBuildFile; fileRef = F692A8680255597D01FF60F7 /* Lookup.cpp */; };
14469DDF107EC7E700650446 /* MathObject.cpp in Sources */ = {isa = PBXBuildFile; fileRef = F692A86A0255597D01FF60F7 /* MathObject.cpp */; };
14469DE0107EC7E700650446 /* NativeErrorConstructor.cpp in Sources */ = {isa = PBXBuildFile; fileRef = BC02E9080E1839DB000F9297 /* NativeErrorConstructor.cpp */; };
......@@ -720,7 +722,7 @@
E49DC16D12EF295300184A1F /* SourceProviderCacheItem.h in Headers */ = {isa = PBXBuildFile; fileRef = E49DC14912EF261A00184A1F /* SourceProviderCacheItem.h */; settings = {ATTRIBUTES = (Private, ); }; };
FE4A331F15BD2E07006F54F3 /* VMInspector.cpp in Sources */ = {isa = PBXBuildFile; fileRef = FE4A331D15BD2E07006F54F3 /* VMInspector.cpp */; };
FE4A332015BD2E07006F54F3 /* VMInspector.h in Headers */ = {isa = PBXBuildFile; fileRef = FE4A331E15BD2E07006F54F3 /* VMInspector.h */; };
FED287B215EC9A5700DA8161 /* LLIntOpcode.h in Headers */ = {isa = PBXBuildFile; fileRef = FED287B115EC9A5700DA8161 /* LLIntOpcode.h */; settings = {ATTRIBUTES = (Private, ); }; };
FED287B215EC9A5700DA8161 /* LLIntOpcode.h in Headers */ = {isa = PBXBuildFile; fileRef = FED287B115EC9A5700DA8161 /* LLIntOpcode.h */; settings = {ATTRIBUTES = (Private, ); }; };
/* End PBXBuildFile section */
/* Begin PBXContainerItemProxy section */
......@@ -901,9 +903,9 @@
0F63943D15C75F14006A597C /* DFGStructureCheckHoistingPhase.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DFGStructureCheckHoistingPhase.h; path = dfg/DFGStructureCheckHoistingPhase.h; sourceTree = "<group>"; };
0F63945115D07051006A597C /* ArrayProfile.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = ArrayProfile.cpp; sourceTree = "<group>"; };
0F63945215D07051006A597C /* ArrayProfile.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ArrayProfile.h; sourceTree = "<group>"; };
0F63947615DCE347006A597C /* DFGStructureAbstractValue.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DFGStructureAbstractValue.h; path = dfg/DFGStructureAbstractValue.h; sourceTree = "<group>"; };
0F63948115E48114006A597C /* DFGArrayMode.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = DFGArrayMode.cpp; path = dfg/DFGArrayMode.cpp; sourceTree = "<group>"; };
0F63948215E48114006A597C /* DFGArrayMode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DFGArrayMode.h; path = dfg/DFGArrayMode.h; sourceTree = "<group>"; };
0F63947615DCE347006A597C /* DFGStructureAbstractValue.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DFGStructureAbstractValue.h; path = dfg/DFGStructureAbstractValue.h; sourceTree = "<group>"; };
0F66E16814DF3F1300B7B2E4 /* DFGAdjacencyList.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DFGAdjacencyList.h; path = dfg/DFGAdjacencyList.h; sourceTree = "<group>"; };
0F66E16914DF3F1300B7B2E4 /* DFGEdge.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DFGEdge.h; path = dfg/DFGEdge.h; sourceTree = "<group>"; };
0F766D1C15A5028D008F363E /* JITStubRoutine.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JITStubRoutine.h; sourceTree = "<group>"; };
......@@ -1062,6 +1064,8 @@
1440F8AD0A508D200005F061 /* JSCallbackConstructor.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSCallbackConstructor.cpp; sourceTree = "<group>"; };
1440FCE10A51E46B0005F061 /* JSClassRef.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSClassRef.h; sourceTree = "<group>"; };
1440FCE20A51E46B0005F061 /* JSClassRef.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSClassRef.cpp; sourceTree = "<group>"; };
1442565F15EDE98D0066A49B /* JSWithScope.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSWithScope.cpp; sourceTree = "<group>"; };
1442566015EDE98D0066A49B /* JSWithScope.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSWithScope.h; sourceTree = "<group>"; };
145722851437E140005FDE26 /* StrongInlines.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StrongInlines.h; sourceTree = "<group>"; };
145C507F0D9DF63B0088F6B9 /* CallData.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CallData.h; sourceTree = "<group>"; };
146AAB2A0B66A84900E55F16 /* JSStringRefCF.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; path = JSStringRefCF.h; sourceTree = "<group>"; };
......@@ -2135,6 +2139,8 @@
865A30F0135007E100CDB49E /* JSValueInlineMethods.h */,
BC22A39A0E16E14800AF21C8 /* JSVariableObject.cpp */,
14F252560D08DD8D004ECFFF /* JSVariableObject.h */,
1442565F15EDE98D0066A49B /* JSWithScope.cpp */,
1442566015EDE98D0066A49B /* JSWithScope.h */,
65C7A1710A8EAACB00FA37EA /* JSWrapperObject.cpp */,
65C7A1720A8EAACB00FA37EA /* JSWrapperObject.h */,
A7E2EA6A0FB460CF00601F06 /* LiteralParser.cpp */,
......@@ -2909,6 +2915,7 @@
14874AE415EBDE4A002E3587 /* JSNameScope.h in Headers */,
14874AE615EBDE4A002E3587 /* JSScope.h in Headers */,
FED287B215EC9A5700DA8161 /* LLIntOpcode.h in Headers */,
1442566215EDE98D0066A49B /* JSWithScope.h in Headers */,
);
runOnlyForDeploymentPostprocessing = 0;
};
......@@ -3511,6 +3518,7 @@
C21122E115DD9AB300790E3A /* GCThreadSharedData.cpp in Sources */,
14874AE315EBDE4A002E3587 /* JSNameScope.cpp in Sources */,
14874AE515EBDE4A002E3587 /* JSScope.cpp in Sources */,
1442566115EDE98D0066A49B /* JSWithScope.cpp in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};
......
......@@ -209,6 +209,7 @@ SOURCES += \
runtime/JSONObject.cpp \
runtime/JSPropertyNameIterator.cpp \
runtime/JSSegmentedVariableObject.cpp \
runtime/JSWithScope.cpp \
runtime/JSNameScope.cpp \
runtime/JSScope.cpp \
runtime/JSString.cpp \
......
......@@ -4796,7 +4796,7 @@ skip_id_custom_self:
CHECK_FOR_EXCEPTION();
callFrame->uncheckedR(scope) = JSValue(o);
callFrame->setScopeChain(callFrame->scopeChain()->push(o));
callFrame->setScopeChain(callFrame->scopeChain()->push(JSWithScope(callFrame, o)));
vPC += OPCODE_LENGTH(op_push_scope);
NEXT_INSTRUCTION();
......
......@@ -54,6 +54,7 @@
#include "JSNotAnObject.h"
#include "JSPropertyNameIterator.h"
#include "JSString.h"
#include "JSWithScope.h"
#include "NameInstance.h"
#include "ObjectPrototype.h"
#include "Operations.h"
......@@ -3146,7 +3147,7 @@ DEFINE_STUB_FUNCTION(JSObject*, op_push_scope)
JSObject* o = stackFrame.args[0].jsValue().toObject(stackFrame.callFrame);
CHECK_FOR_EXCEPTION();
stackFrame.callFrame->setScopeChain(stackFrame.callFrame->scopeChain()->push(o));
stackFrame.callFrame->setScopeChain(stackFrame.callFrame->scopeChain()->push(JSWithScope::create(stackFrame.callFrame, o)));
return o;
}
......
......@@ -42,6 +42,7 @@
#include "JSPropertyNameIterator.h"
#include "JSString.h"
#include "JSValue.h"
#include "JSWithScope.h"
#include "LLIntCommon.h"
#include "LLIntExceptions.h"
#include "LowLevelInterpreter.h"
......@@ -1535,7 +1536,7 @@ LLINT_SLOW_PATH_DECL(slow_path_push_scope)
LLINT_CHECK_EXCEPTION();
LLINT_OP(1) = o;
exec->setScopeChain(exec->scopeChain()->push(o));
exec->setScopeChain(exec->scopeChain()->push(JSWithScope::create(exec, o)));
LLINT_END();
}
......
......@@ -48,6 +48,7 @@
#include "JSNameScope.h"
#include "JSNotAnObject.h"
#include "JSPropertyNameIterator.h"
#include "JSWithScope.h"
#include "Lexer.h"
#include "Lookup.h"
#include "Nodes.h"
......@@ -205,6 +206,7 @@ JSGlobalData::JSGlobalData(GlobalDataType globalDataType, ThreadStackType thread
regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
sharedSymbolTableStructure.set(*this, SharedSymbolTable::createStructure(*this, 0, jsNull()));
structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));
withScopeStructure.set(*this, JSWithScope::createStructure(*this, 0, jsNull()));
wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);
......
......@@ -240,6 +240,7 @@ namespace JSC {
Strong<Structure> regExpStructure;
Strong<Structure> sharedSymbolTableStructure;
Strong<Structure> structureChainStructure;
Strong<Structure> withScopeStructure;
IdentifierTable* identifierTable;
CommonIdentifiers* propertyNames;
......
......@@ -29,6 +29,7 @@
#include "JSActivation.h"
#include "JSGlobalObject.h"
#include "JSNameScope.h"
#include "JSWithScope.h"
namespace JSC {
......@@ -51,6 +52,15 @@ bool JSScope::isDynamicScope(bool& requiresDynamicChecks) const
return false;
}
JSObject* JSScope::objectAtScope(ScopeChainNode* scopeChain)
{
JSObject* object = scopeChain->object.get();
if (object->structure()->typeInfo().type() == WithScopeType)
return jsCast<JSWithScope*>(object)->object();
return object;
}
JSValue JSScope::resolve(CallFrame* callFrame, const Identifier& identifier)
{
ScopeChainNode* scopeChain = callFrame->scopeChain();
......
......@@ -34,7 +34,7 @@ class JSScope : public JSNonFinalObject {
public:
typedef JSNonFinalObject Base;
static JSObject* objectAtScope(ScopeChainNode*);
JS_EXPORT_PRIVATE static JSObject* objectAtScope(ScopeChainNode*);
static JSValue resolve(CallFrame*, const Identifier&);
static JSValue resolveSkip(CallFrame*, const Identifier&, int skip);
......@@ -67,11 +67,6 @@ inline JSScope::JSScope(JSGlobalData& globalData, Structure* structure)
{
}
inline JSObject* JSScope::objectAtScope(ScopeChainNode* scopeChain)
{
return scopeChain->object.get();
}
class ScopeChainIterator {
public:
ScopeChainIterator(ScopeChainNode* node)
......
......@@ -49,6 +49,7 @@ enum JSType {
NumberObjectType,
ErrorInstanceType,
GlobalThisType,
WithScopeType,
NameScopeObjectType,
// VariableObjectType must be less than MOST of the types of its subclasses and only its subclasses.
......
/*
* Copyright (C) 2012 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "config.h"
#include "JSWithScope.h"
namespace JSC {
ASSERT_CLASS_FITS_IN_CELL(JSWithScope);
const ClassInfo JSWithScope::s_info = { "WithScope", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSWithScope) };
void JSWithScope::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
JSWithScope* thisObject = jsCast<JSWithScope*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
Base::visitChildren(thisObject, visitor);
visitor.append(&thisObject->m_object);
}
} // namespace JSC
/*
* Copyright (C) 2012 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 JSWithScope_h
#define JSWithScope_h
#include "JSScope.h"
namespace JSC {
class JSWithScope : public JSScope {
public:
typedef JSScope Base;
static JSWithScope* create(ExecState* exec, JSObject* object)
{
JSWithScope* withScope = new (NotNull, allocateCell<JSWithScope>(*exec->heap())) JSWithScope(exec, object);
withScope->finishCreation(exec->globalData());
return withScope;
}
JSObject* object() { return m_object.get(); }
static void visitChildren(JSCell*, SlotVisitor&);
static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto)
{
return Structure::create(globalData, globalObject, proto, TypeInfo(WithScopeType, StructureFlags), &s_info);
}
static const ClassInfo s_info;
protected:
static const unsigned StructureFlags = OverridesVisitChildren | Base::StructureFlags;
private:
JSWithScope(ExecState* exec, JSObject* object)
: Base(exec->globalData(), exec->globalData().withScopeStructure.get())
, m_object(exec->globalData(), this, object)
{
}
WriteBarrier<JSObject> m_object;
};
} // namespace JSC
#endif // JSWithScope_h
......@@ -33,7 +33,7 @@ ASSERT_HAS_TRIVIAL_DESTRUCTOR(StrictEvalActivation);
const ClassInfo StrictEvalActivation::s_info = { "Object", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(StrictEvalActivation) };
StrictEvalActivation::StrictEvalActivation(ExecState* exec)
: JSNonFinalObject(exec->globalData(), exec->globalData().strictEvalActivationStructure.get())
: Base(exec->globalData(), exec->globalData().strictEvalActivationStructure.get())
{
}
......
......@@ -26,13 +26,13 @@
#ifndef StrictEvalActivation_h
#define StrictEvalActivation_h
#include "JSObject.h"
#include "JSScope.h"
namespace JSC {
class StrictEvalActivation : public JSNonFinalObject {
class StrictEvalActivation : public JSScope {
public:
typedef JSNonFinalObject Base;
typedef JSScope Base;
static StrictEvalActivation* create(ExecState* exec)
{
......@@ -52,7 +52,7 @@ public:
static const ClassInfo s_info;
protected:
static const unsigned StructureFlags = IsEnvironmentRecord | JSNonFinalObject::StructureFlags;
static const unsigned StructureFlags = IsEnvironmentRecord | Base::StructureFlags;
private:
StrictEvalActivation(ExecState*);
......
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