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744 lines (614 loc) · 27 KB
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/*
* Copyright (C) 2009, 2010 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 Executable_h
#define Executable_h
#include "CallData.h"
#include "CodeSpecializationKind.h"
#include "JSFunction.h"
#include "Interpreter.h"
#include "Nodes.h"
#include "SamplingTool.h"
#include <wtf/PassOwnPtr.h>
namespace JSC {
class CodeBlock;
class Debugger;
class EvalCodeBlock;
class FunctionCodeBlock;
class LLIntOffsetsExtractor;
class ProgramCodeBlock;
class ScopeChainNode;
enum CompilationKind { FirstCompilation, OptimizingCompilation };
inline bool isCall(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return true;
ASSERT(kind == CodeForConstruct);
return false;
}
class ExecutableBase : public JSCell {
friend class JIT;
protected:
static const int NUM_PARAMETERS_IS_HOST = 0;
static const int NUM_PARAMETERS_NOT_COMPILED = -1;
ExecutableBase(JSGlobalData& globalData, Structure* structure, int numParameters)
: JSCell(globalData, structure)
, m_numParametersForCall(numParameters)
, m_numParametersForConstruct(numParameters)
{
}
void finishCreation(JSGlobalData& globalData)
{
Base::finishCreation(globalData);
}
public:
typedef JSCell Base;
#if ENABLE(JIT)
static void destroy(JSCell*);
#endif
bool isHostFunction() const
{
ASSERT((m_numParametersForCall == NUM_PARAMETERS_IS_HOST) == (m_numParametersForConstruct == NUM_PARAMETERS_IS_HOST));
return m_numParametersForCall == NUM_PARAMETERS_IS_HOST;
}
static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto) { return Structure::create(globalData, globalObject, proto, TypeInfo(CompoundType, StructureFlags), &s_info); }
static JS_EXPORTDATA const ClassInfo s_info;
protected:
static const unsigned StructureFlags = 0;
int m_numParametersForCall;
int m_numParametersForConstruct;
#if ENABLE(JIT)
public:
JITCode& generatedJITCodeForCall()
{
ASSERT(m_jitCodeForCall);
return m_jitCodeForCall;
}
JITCode& generatedJITCodeForConstruct()
{
ASSERT(m_jitCodeForConstruct);
return m_jitCodeForConstruct;
}
JITCode& generatedJITCodeFor(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return generatedJITCodeForCall();
ASSERT(kind == CodeForConstruct);
return generatedJITCodeForConstruct();
}
MacroAssemblerCodePtr generatedJITCodeForCallWithArityCheck()
{
ASSERT(m_jitCodeForCall);
ASSERT(m_jitCodeForCallWithArityCheck);
return m_jitCodeForCallWithArityCheck;
}
MacroAssemblerCodePtr generatedJITCodeForConstructWithArityCheck()
{
ASSERT(m_jitCodeForConstruct);
ASSERT(m_jitCodeForConstructWithArityCheck);
return m_jitCodeForConstructWithArityCheck;
}
MacroAssemblerCodePtr generatedJITCodeWithArityCheckFor(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return generatedJITCodeForCallWithArityCheck();
ASSERT(kind == CodeForConstruct);
return generatedJITCodeForConstructWithArityCheck();
}
bool hasJITCodeForCall() const
{
return m_numParametersForCall >= 0;
}
bool hasJITCodeForConstruct() const
{
return m_numParametersForConstruct >= 0;
}
bool hasJITCodeFor(CodeSpecializationKind kind) const
{
if (kind == CodeForCall)
return hasJITCodeForCall();
ASSERT(kind == CodeForConstruct);
return hasJITCodeForConstruct();
}
// Intrinsics are only for calls, currently.
Intrinsic intrinsic() const;
Intrinsic intrinsicFor(CodeSpecializationKind kind) const
{
if (isCall(kind))
return intrinsic();
return NoIntrinsic;
}
protected:
JITCode m_jitCodeForCall;
JITCode m_jitCodeForConstruct;
MacroAssemblerCodePtr m_jitCodeForCallWithArityCheck;
MacroAssemblerCodePtr m_jitCodeForConstructWithArityCheck;
#endif
void clearCode();
};
class NativeExecutable : public ExecutableBase {
friend class JIT;
friend class LLIntOffsetsExtractor;
public:
typedef ExecutableBase Base;
#if ENABLE(JIT)
static NativeExecutable* create(JSGlobalData& globalData, MacroAssemblerCodeRef callThunk, NativeFunction function, MacroAssemblerCodeRef constructThunk, NativeFunction constructor, Intrinsic intrinsic)
{
ASSERT(!globalData.interpreter->classicEnabled());
NativeExecutable* executable;
if (!callThunk) {
executable = new (NotNull, allocateCell<NativeExecutable>(globalData.heap)) NativeExecutable(globalData, function, constructor);
executable->finishCreation(globalData, JITCode(), JITCode(), intrinsic);
} else {
executable = new (NotNull, allocateCell<NativeExecutable>(globalData.heap)) NativeExecutable(globalData, function, constructor);
executable->finishCreation(globalData, JITCode::HostFunction(callThunk), JITCode::HostFunction(constructThunk), intrinsic);
}
globalData.heap.addFinalizer(executable, &finalize);
return executable;
}
#endif
#if ENABLE(CLASSIC_INTERPRETER)
static NativeExecutable* create(JSGlobalData& globalData, NativeFunction function, NativeFunction constructor)
{
ASSERT(!globalData.canUseJIT());
NativeExecutable* executable = new (NotNull, allocateCell<NativeExecutable>(globalData.heap)) NativeExecutable(globalData, function, constructor);
executable->finishCreation(globalData);
globalData.heap.addFinalizer(executable, &finalize);
return executable;
}
#endif
#if ENABLE(JIT)
static void destroy(JSCell*);
#endif
NativeFunction function() { return m_function; }
NativeFunction constructor() { return m_constructor; }
static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto) { return Structure::create(globalData, globalObject, proto, TypeInfo(LeafType, StructureFlags), &s_info); }
static const ClassInfo s_info;
Intrinsic intrinsic() const;
protected:
#if ENABLE(JIT)
void finishCreation(JSGlobalData& globalData, JITCode callThunk, JITCode constructThunk, Intrinsic intrinsic)
{
ASSERT(!globalData.interpreter->classicEnabled());
Base::finishCreation(globalData);
m_jitCodeForCall = callThunk;
m_jitCodeForConstruct = constructThunk;
m_jitCodeForCallWithArityCheck = callThunk.addressForCall();
m_jitCodeForConstructWithArityCheck = constructThunk.addressForCall();
m_intrinsic = intrinsic;
}
#endif
#if ENABLE(CLASSIC_INTERPRETER)
void finishCreation(JSGlobalData& globalData)
{
ASSERT(!globalData.canUseJIT());
Base::finishCreation(globalData);
m_intrinsic = NoIntrinsic;
}
#endif
static void finalize(JSCell*);
private:
NativeExecutable(JSGlobalData& globalData, NativeFunction function, NativeFunction constructor)
: ExecutableBase(globalData, globalData.nativeExecutableStructure.get(), NUM_PARAMETERS_IS_HOST)
, m_function(function)
, m_constructor(constructor)
{
}
NativeFunction m_function;
NativeFunction m_constructor;
Intrinsic m_intrinsic;
};
class ScriptExecutable : public ExecutableBase {
public:
typedef ExecutableBase Base;
ScriptExecutable(Structure* structure, JSGlobalData& globalData, const SourceCode& source, bool isInStrictContext)
: ExecutableBase(globalData, structure, NUM_PARAMETERS_NOT_COMPILED)
, m_source(source)
, m_features(isInStrictContext ? StrictModeFeature : 0)
{
}
ScriptExecutable(Structure* structure, ExecState* exec, const SourceCode& source, bool isInStrictContext)
: ExecutableBase(exec->globalData(), structure, NUM_PARAMETERS_NOT_COMPILED)
, m_source(source)
, m_features(isInStrictContext ? StrictModeFeature : 0)
{
}
#if ENABLE(JIT)
static void destroy(JSCell*);
#endif
const SourceCode& source() { return m_source; }
intptr_t sourceID() const { return m_source.provider()->asID(); }
const UString& sourceURL() const { return m_source.provider()->url(); }
int lineNo() const { return m_firstLine; }
int lastLine() const { return m_lastLine; }
bool usesEval() const { return m_features & EvalFeature; }
bool usesArguments() const { return m_features & ArgumentsFeature; }
bool needsActivation() const { return m_hasCapturedVariables || m_features & (EvalFeature | WithFeature | CatchFeature); }
bool isStrictMode() const { return m_features & StrictModeFeature; }
void unlinkCalls();
static const ClassInfo s_info;
protected:
void finishCreation(JSGlobalData& globalData)
{
Base::finishCreation(globalData);
#if ENABLE(CODEBLOCK_SAMPLING)
if (SamplingTool* sampler = globalData.interpreter->sampler())
sampler->notifyOfScope(globalData, this);
#endif
}
void recordParse(CodeFeatures features, bool hasCapturedVariables, int firstLine, int lastLine)
{
m_features = features;
m_hasCapturedVariables = hasCapturedVariables;
m_firstLine = firstLine;
m_lastLine = lastLine;
}
SourceCode m_source;
CodeFeatures m_features;
bool m_hasCapturedVariables;
int m_firstLine;
int m_lastLine;
};
class EvalExecutable : public ScriptExecutable {
friend class LLIntOffsetsExtractor;
public:
typedef ScriptExecutable Base;
static void destroy(JSCell*);
JSObject* compile(ExecState* exec, ScopeChainNode* scopeChainNode)
{
ASSERT(exec->globalData().dynamicGlobalObject);
JSObject* error = 0;
if (!m_evalCodeBlock)
error = compileInternal(exec, scopeChainNode, JITCode::bottomTierJIT());
ASSERT(!error == !!m_evalCodeBlock);
return error;
}
JSObject* compileOptimized(ExecState*, ScopeChainNode*);
#if ENABLE(JIT)
void jettisonOptimizedCode(JSGlobalData&);
bool jitCompile(JSGlobalData&);
#endif
EvalCodeBlock& generatedBytecode()
{
ASSERT(m_evalCodeBlock);
return *m_evalCodeBlock;
}
static EvalExecutable* create(ExecState* exec, const SourceCode& source, bool isInStrictContext)
{
EvalExecutable* executable = new (NotNull, allocateCell<EvalExecutable>(*exec->heap())) EvalExecutable(exec, source, isInStrictContext);
executable->finishCreation(exec->globalData());
exec->globalData().heap.addFinalizer(executable, &finalize);
return executable;
}
#if ENABLE(JIT)
JITCode& generatedJITCode()
{
return generatedJITCodeForCall();
}
#endif
static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto)
{
return Structure::create(globalData, globalObject, proto, TypeInfo(EvalExecutableType, StructureFlags), &s_info);
}
static const ClassInfo s_info;
void unlinkCalls();
protected:
void clearCode();
static void finalize(JSCell*);
private:
static const unsigned StructureFlags = OverridesVisitChildren | ScriptExecutable::StructureFlags;
EvalExecutable(ExecState*, const SourceCode&, bool);
JSObject* compileInternal(ExecState*, ScopeChainNode*, JITCode::JITType);
static void visitChildren(JSCell*, SlotVisitor&);
OwnPtr<EvalCodeBlock> m_evalCodeBlock;
};
class ProgramExecutable : public ScriptExecutable {
friend class LLIntOffsetsExtractor;
public:
typedef ScriptExecutable Base;
static ProgramExecutable* create(ExecState* exec, const SourceCode& source)
{
ProgramExecutable* executable = new (NotNull, allocateCell<ProgramExecutable>(*exec->heap())) ProgramExecutable(exec, source);
executable->finishCreation(exec->globalData());
exec->globalData().heap.addFinalizer(executable, &finalize);
return executable;
}
static void destroy(JSCell*);
JSObject* compile(ExecState* exec, ScopeChainNode* scopeChainNode)
{
ASSERT(exec->globalData().dynamicGlobalObject);
JSObject* error = 0;
if (!m_programCodeBlock)
error = compileInternal(exec, scopeChainNode, JITCode::bottomTierJIT());
ASSERT(!error == !!m_programCodeBlock);
return error;
}
JSObject* compileOptimized(ExecState*, ScopeChainNode*);
#if ENABLE(JIT)
void jettisonOptimizedCode(JSGlobalData&);
bool jitCompile(JSGlobalData&);
#endif
ProgramCodeBlock& generatedBytecode()
{
ASSERT(m_programCodeBlock);
return *m_programCodeBlock;
}
JSObject* checkSyntax(ExecState*);
#if ENABLE(JIT)
JITCode& generatedJITCode()
{
return generatedJITCodeForCall();
}
#endif
static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto)
{
return Structure::create(globalData, globalObject, proto, TypeInfo(ProgramExecutableType, StructureFlags), &s_info);
}
static const ClassInfo s_info;
void unlinkCalls();
protected:
void clearCode();
static void finalize(JSCell*);
private:
static const unsigned StructureFlags = OverridesVisitChildren | ScriptExecutable::StructureFlags;
ProgramExecutable(ExecState*, const SourceCode&);
JSObject* compileInternal(ExecState*, ScopeChainNode*, JITCode::JITType);
static void visitChildren(JSCell*, SlotVisitor&);
OwnPtr<ProgramCodeBlock> m_programCodeBlock;
};
class FunctionExecutable : public ScriptExecutable, public DoublyLinkedListNode<FunctionExecutable> {
friend class JIT;
friend class LLIntOffsetsExtractor;
friend class WTF::DoublyLinkedListNode<FunctionExecutable>;
public:
typedef ScriptExecutable Base;
static FunctionExecutable* create(ExecState* exec, const Identifier& name, const Identifier& inferredName, const SourceCode& source, bool forceUsesArguments, FunctionParameters* parameters, bool isInStrictContext, int firstLine, int lastLine)
{
FunctionExecutable* executable = new (NotNull, allocateCell<FunctionExecutable>(*exec->heap())) FunctionExecutable(exec, name, inferredName, source, forceUsesArguments, parameters, isInStrictContext);
executable->finishCreation(exec->globalData(), name, firstLine, lastLine);
exec->globalData().heap.addFunctionExecutable(executable);
exec->globalData().heap.addFinalizer(executable, &finalize);
return executable;
}
static FunctionExecutable* create(JSGlobalData& globalData, const Identifier& name, const Identifier& inferredName, const SourceCode& source, bool forceUsesArguments, FunctionParameters* parameters, bool isInStrictContext, int firstLine, int lastLine)
{
FunctionExecutable* executable = new (NotNull, allocateCell<FunctionExecutable>(globalData.heap)) FunctionExecutable(globalData, name, inferredName, source, forceUsesArguments, parameters, isInStrictContext);
executable->finishCreation(globalData, name, firstLine, lastLine);
globalData.heap.addFunctionExecutable(executable);
globalData.heap.addFinalizer(executable, &finalize);
return executable;
}
static void destroy(JSCell*);
JSFunction* make(ExecState* exec, ScopeChainNode* scopeChain)
{
return JSFunction::create(exec, this, scopeChain);
}
// Returns either call or construct bytecode. This can be appropriate
// for answering questions that that don't vary between call and construct --
// for example, argumentsRegister().
FunctionCodeBlock& generatedBytecode()
{
if (m_codeBlockForCall)
return *m_codeBlockForCall;
ASSERT(m_codeBlockForConstruct);
return *m_codeBlockForConstruct;
}
FunctionCodeBlock* codeBlockWithBytecodeFor(CodeSpecializationKind);
PassOwnPtr<FunctionCodeBlock> produceCodeBlockFor(ScopeChainNode*, CompilationKind, CodeSpecializationKind, JSObject*& exception);
JSObject* compileForCall(ExecState* exec, ScopeChainNode* scopeChainNode)
{
ASSERT(exec->globalData().dynamicGlobalObject);
JSObject* error = 0;
if (!m_codeBlockForCall)
error = compileForCallInternal(exec, scopeChainNode, JITCode::bottomTierJIT());
ASSERT(!error == !!m_codeBlockForCall);
return error;
}
JSObject* compileOptimizedForCall(ExecState*, ScopeChainNode*);
#if ENABLE(JIT)
void jettisonOptimizedCodeForCall(JSGlobalData&);
bool jitCompileForCall(JSGlobalData&);
#endif
bool isGeneratedForCall() const
{
return m_codeBlockForCall;
}
FunctionCodeBlock& generatedBytecodeForCall()
{
ASSERT(m_codeBlockForCall);
return *m_codeBlockForCall;
}
JSObject* compileForConstruct(ExecState* exec, ScopeChainNode* scopeChainNode)
{
ASSERT(exec->globalData().dynamicGlobalObject);
JSObject* error = 0;
if (!m_codeBlockForConstruct)
error = compileForConstructInternal(exec, scopeChainNode, JITCode::bottomTierJIT());
ASSERT(!error == !!m_codeBlockForConstruct);
return error;
}
JSObject* compileOptimizedForConstruct(ExecState*, ScopeChainNode*);
#if ENABLE(JIT)
void jettisonOptimizedCodeForConstruct(JSGlobalData&);
bool jitCompileForConstruct(JSGlobalData&);
#endif
bool isGeneratedForConstruct() const
{
return m_codeBlockForConstruct;
}
FunctionCodeBlock& generatedBytecodeForConstruct()
{
ASSERT(m_codeBlockForConstruct);
return *m_codeBlockForConstruct;
}
JSObject* compileFor(ExecState* exec, ScopeChainNode* scopeChainNode, CodeSpecializationKind kind)
{
ASSERT(exec->callee());
ASSERT(exec->callee()->inherits(&JSFunction::s_info));
ASSERT(jsCast<JSFunction*>(exec->callee())->jsExecutable() == this);
if (kind == CodeForCall)
return compileForCall(exec, scopeChainNode);
ASSERT(kind == CodeForConstruct);
return compileForConstruct(exec, scopeChainNode);
}
JSObject* compileOptimizedFor(ExecState* exec, ScopeChainNode* scopeChainNode, CodeSpecializationKind kind)
{
ASSERT(exec->callee());
ASSERT(exec->callee()->inherits(&JSFunction::s_info));
ASSERT(jsCast<JSFunction*>(exec->callee())->jsExecutable() == this);
if (kind == CodeForCall)
return compileOptimizedForCall(exec, scopeChainNode);
ASSERT(kind == CodeForConstruct);
return compileOptimizedForConstruct(exec, scopeChainNode);
}
#if ENABLE(JIT)
void jettisonOptimizedCodeFor(JSGlobalData& globalData, CodeSpecializationKind kind)
{
if (kind == CodeForCall)
jettisonOptimizedCodeForCall(globalData);
else {
ASSERT(kind == CodeForConstruct);
jettisonOptimizedCodeForConstruct(globalData);
}
}
bool jitCompileFor(JSGlobalData& globalData, CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return jitCompileForCall(globalData);
ASSERT(kind == CodeForConstruct);
return jitCompileForConstruct(globalData);
}
#endif
bool isGeneratedFor(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return isGeneratedForCall();
ASSERT(kind == CodeForConstruct);
return isGeneratedForConstruct();
}
FunctionCodeBlock& generatedBytecodeFor(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return generatedBytecodeForCall();
ASSERT(kind == CodeForConstruct);
return generatedBytecodeForConstruct();
}
FunctionCodeBlock* baselineCodeBlockFor(CodeSpecializationKind);
FunctionCodeBlock* profiledCodeBlockFor(CodeSpecializationKind kind)
{
return baselineCodeBlockFor(kind);
}
const Identifier& name() { return m_name; }
const Identifier& inferredName() { return m_inferredName; }
JSString* nameValue() const { return m_nameValue.get(); }
size_t parameterCount() const { return m_parameters->size(); } // Excluding 'this'!
unsigned capturedVariableCount() const { return m_numCapturedVariables; }
UString paramString() const;
SharedSymbolTable* symbolTable() const { return m_symbolTable; }
void discardCode();
static void visitChildren(JSCell*, SlotVisitor&);
static FunctionExecutable* fromGlobalCode(const Identifier&, ExecState*, Debugger*, const SourceCode&, JSObject** exception);
static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto)
{
return Structure::create(globalData, globalObject, proto, TypeInfo(FunctionExecutableType, StructureFlags), &s_info);
}
static const ClassInfo s_info;
void unlinkCalls();
protected:
void clearCode();
static void finalize(JSCell*);
void finishCreation(JSGlobalData& globalData, const Identifier& name, int firstLine, int lastLine)
{
Base::finishCreation(globalData);
m_firstLine = firstLine;
m_lastLine = lastLine;
m_nameValue.set(globalData, this, jsString(&globalData, name.ustring()));
}
private:
FunctionExecutable(JSGlobalData&, const Identifier& name, const Identifier& inferredName, const SourceCode&, bool forceUsesArguments, FunctionParameters*, bool);
FunctionExecutable(ExecState*, const Identifier& name, const Identifier& inferredName, const SourceCode&, bool forceUsesArguments, FunctionParameters*, bool);
JSObject* compileForCallInternal(ExecState*, ScopeChainNode*, JITCode::JITType);
JSObject* compileForConstructInternal(ExecState*, ScopeChainNode*, JITCode::JITType);
OwnPtr<FunctionCodeBlock>& codeBlockFor(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return m_codeBlockForCall;
ASSERT(kind == CodeForConstruct);
return m_codeBlockForConstruct;
}
static const unsigned StructureFlags = OverridesVisitChildren | ScriptExecutable::StructureFlags;
unsigned m_numCapturedVariables : 31;
bool m_forceUsesArguments : 1;
RefPtr<FunctionParameters> m_parameters;
OwnPtr<FunctionCodeBlock> m_codeBlockForCall;
OwnPtr<FunctionCodeBlock> m_codeBlockForConstruct;
Identifier m_name;
Identifier m_inferredName;
WriteBarrier<JSString> m_nameValue;
SharedSymbolTable* m_symbolTable;
FunctionExecutable* m_next;
FunctionExecutable* m_prev;
};
inline FunctionExecutable* JSFunction::jsExecutable() const
{
ASSERT(!isHostFunctionNonInline());
return static_cast<FunctionExecutable*>(m_executable.get());
}
inline bool JSFunction::isHostFunction() const
{
ASSERT(m_executable);
return m_executable->isHostFunction();
}
inline NativeFunction JSFunction::nativeFunction()
{
ASSERT(isHostFunction());
return static_cast<NativeExecutable*>(m_executable.get())->function();
}
inline NativeFunction JSFunction::nativeConstructor()
{
ASSERT(isHostFunction());
return static_cast<NativeExecutable*>(m_executable.get())->constructor();
}
inline bool isHostFunction(JSValue value, NativeFunction nativeFunction)
{
JSFunction* function = jsCast<JSFunction*>(getJSFunction(value));
if (!function || !function->isHostFunction())
return false;
return function->nativeFunction() == nativeFunction;
}
inline void ScriptExecutable::unlinkCalls()
{
switch (structure()->typeInfo().type()) {
case EvalExecutableType:
return jsCast<EvalExecutable*>(this)->unlinkCalls();
case ProgramExecutableType:
return jsCast<ProgramExecutable*>(this)->unlinkCalls();
case FunctionExecutableType:
return jsCast<FunctionExecutable*>(this)->unlinkCalls();
default:
ASSERT_NOT_REACHED();
}
}
}
#endif