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/*
* Copyright (C) 2009, 2010, 2013 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 "Executable.h"
#include "BatchedTransitionOptimizer.h"
#include "BytecodeGenerator.h"
#include "CodeBlock.h"
#include "DFGDriver.h"
#include "JIT.h"
#include "LLIntEntrypoint.h"
#include "Operations.h"
#include "Parser.h"
#include <wtf/Vector.h>
#include <wtf/text/StringBuilder.h>
namespace JSC {
const ClassInfo ExecutableBase::s_info = { "Executable", 0, 0, 0, CREATE_METHOD_TABLE(ExecutableBase) };
#if ENABLE(JIT)
void ExecutableBase::destroy(JSCell* cell)
{
static_cast<ExecutableBase*>(cell)->ExecutableBase::~ExecutableBase();
}
#endif
void ExecutableBase::clearCode()
{
#if ENABLE(JIT)
m_jitCodeForCall.clear();
m_jitCodeForConstruct.clear();
m_jitCodeForCallWithArityCheck = MacroAssemblerCodePtr();
m_jitCodeForConstructWithArityCheck = MacroAssemblerCodePtr();
#endif
m_numParametersForCall = NUM_PARAMETERS_NOT_COMPILED;
m_numParametersForConstruct = NUM_PARAMETERS_NOT_COMPILED;
}
#if ENABLE(DFG_JIT)
Intrinsic ExecutableBase::intrinsic() const
{
if (const NativeExecutable* nativeExecutable = jsDynamicCast<const NativeExecutable*>(this))
return nativeExecutable->intrinsic();
return NoIntrinsic;
}
#else
Intrinsic ExecutableBase::intrinsic() const
{
return NoIntrinsic;
}
#endif
const ClassInfo NativeExecutable::s_info = { "NativeExecutable", &ExecutableBase::s_info, 0, 0, CREATE_METHOD_TABLE(NativeExecutable) };
#if ENABLE(JIT)
void NativeExecutable::destroy(JSCell* cell)
{
static_cast<NativeExecutable*>(cell)->NativeExecutable::~NativeExecutable();
}
#endif
#if ENABLE(DFG_JIT)
Intrinsic NativeExecutable::intrinsic() const
{
return m_intrinsic;
}
#endif
const ClassInfo ScriptExecutable::s_info = { "ScriptExecutable", &ExecutableBase::s_info, 0, 0, CREATE_METHOD_TABLE(ScriptExecutable) };
#if ENABLE(JIT)
void ScriptExecutable::destroy(JSCell* cell)
{
static_cast<ScriptExecutable*>(cell)->ScriptExecutable::~ScriptExecutable();
}
#endif
void ScriptExecutable::installCode(CodeBlock* genericCodeBlock)
{
RELEASE_ASSERT(genericCodeBlock->ownerExecutable() == this);
RELEASE_ASSERT(JITCode::isExecutableScript(genericCodeBlock->jitType()));
VM& vm = *genericCodeBlock->vm();
if (vm.m_perBytecodeProfiler)
vm.m_perBytecodeProfiler->ensureBytecodesFor(genericCodeBlock);
ASSERT(vm.heap.isDeferred());
CodeSpecializationKind kind = genericCodeBlock->specializationKind();
RefPtr<CodeBlock> oldCodeBlock;
switch (kind) {
case CodeForCall:
m_jitCodeForCall = genericCodeBlock->jitCode();
m_jitCodeForCallWithArityCheck = genericCodeBlock->jitCodeWithArityCheck();
m_numParametersForCall = genericCodeBlock->numParameters();
break;
case CodeForConstruct:
m_jitCodeForConstruct = genericCodeBlock->jitCode();
m_jitCodeForConstructWithArityCheck = genericCodeBlock->jitCodeWithArityCheck();
m_numParametersForConstruct = genericCodeBlock->numParameters();
break;
}
switch (genericCodeBlock->codeType()) {
case GlobalCode: {
ProgramExecutable* executable = jsCast<ProgramExecutable*>(this);
ProgramCodeBlock* codeBlock = static_cast<ProgramCodeBlock*>(genericCodeBlock);
ASSERT(!codeBlock->jitCodeWithArityCheck());
ASSERT(kind == CodeForCall);
oldCodeBlock = executable->m_programCodeBlock;
executable->m_programCodeBlock = codeBlock;
break;
}
case EvalCode: {
EvalExecutable* executable = jsCast<EvalExecutable*>(this);
EvalCodeBlock* codeBlock = static_cast<EvalCodeBlock*>(genericCodeBlock);
ASSERT(!codeBlock->jitCodeWithArityCheck());
ASSERT(kind == CodeForCall);
oldCodeBlock = executable->m_evalCodeBlock;
executable->m_evalCodeBlock = codeBlock;
break;
}
case FunctionCode: {
FunctionExecutable* executable = jsCast<FunctionExecutable*>(this);
FunctionCodeBlock* codeBlock = static_cast<FunctionCodeBlock*>(genericCodeBlock);
switch (kind) {
case CodeForCall:
oldCodeBlock = executable->m_codeBlockForCall;
executable->m_codeBlockForCall = codeBlock;
break;
case CodeForConstruct:
oldCodeBlock = executable->m_codeBlockForConstruct;
executable->m_codeBlockForConstruct = codeBlock;
break;
}
break;
} }
if (oldCodeBlock)
oldCodeBlock->unlinkIncomingCalls();
}
PassRefPtr<CodeBlock> ScriptExecutable::newCodeBlockFor(
CodeSpecializationKind kind, JSScope* scope, JSObject*& exception)
{
VM* vm = scope->vm();
ASSERT(vm->heap.isDeferred());
ASSERT(startColumn() != UINT_MAX);
ASSERT(endColumn() != UINT_MAX);
if (classInfo() == EvalExecutable::info()) {
EvalExecutable* executable = jsCast<EvalExecutable*>(this);
RELEASE_ASSERT(kind == CodeForCall);
RELEASE_ASSERT(!executable->m_evalCodeBlock);
return adoptRef(new EvalCodeBlock(
executable, executable->m_unlinkedEvalCodeBlock.get(), scope,
executable->source().provider()));
}
if (classInfo() == ProgramExecutable::info()) {
ProgramExecutable* executable = jsCast<ProgramExecutable*>(this);
RELEASE_ASSERT(kind == CodeForCall);
RELEASE_ASSERT(!executable->m_programCodeBlock);
return adoptRef(new ProgramCodeBlock(
executable, executable->m_unlinkedProgramCodeBlock.get(), scope,
executable->source().provider(), executable->source().startColumn()));
}
RELEASE_ASSERT(classInfo() == FunctionExecutable::info());
FunctionExecutable* executable = jsCast<FunctionExecutable*>(this);
RELEASE_ASSERT(!executable->codeBlockFor(kind));
JSGlobalObject* globalObject = scope->globalObject();
ParserError error;
DebuggerMode debuggerMode = globalObject->hasDebugger() ? DebuggerOn : DebuggerOff;
ProfilerMode profilerMode = globalObject->hasProfiler() ? ProfilerOn : ProfilerOff;
UnlinkedFunctionCodeBlock* unlinkedCodeBlock =
executable->m_unlinkedExecutable->codeBlockFor(
*vm, executable->m_source, kind, debuggerMode, profilerMode, error);
recordParse(executable->m_unlinkedExecutable->features(), executable->m_unlinkedExecutable->hasCapturedVariables(), lineNo(), lastLine(), startColumn(), endColumn());
if (!unlinkedCodeBlock) {
exception = vm->throwException(
globalObject->globalExec(),
error.toErrorObject(globalObject, executable->m_source));
return 0;
}
SourceProvider* provider = executable->source().provider();
unsigned sourceOffset = executable->source().startOffset();
unsigned startColumn = executable->source().startColumn();
return adoptRef(new FunctionCodeBlock(
executable, unlinkedCodeBlock, scope, provider, sourceOffset, startColumn));
}
PassRefPtr<CodeBlock> ScriptExecutable::newReplacementCodeBlockFor(
CodeSpecializationKind kind)
{
if (classInfo() == EvalExecutable::info()) {
RELEASE_ASSERT(kind == CodeForCall);
EvalExecutable* executable = jsCast<EvalExecutable*>(this);
EvalCodeBlock* baseline = static_cast<EvalCodeBlock*>(
executable->m_evalCodeBlock->baselineVersion());
RefPtr<EvalCodeBlock> result = adoptRef(new EvalCodeBlock(
CodeBlock::CopyParsedBlock, *baseline));
result->setAlternative(baseline);
return result;
}
if (classInfo() == ProgramExecutable::info()) {
RELEASE_ASSERT(kind == CodeForCall);
ProgramExecutable* executable = jsCast<ProgramExecutable*>(this);
ProgramCodeBlock* baseline = static_cast<ProgramCodeBlock*>(
executable->m_programCodeBlock->baselineVersion());
RefPtr<ProgramCodeBlock> result = adoptRef(new ProgramCodeBlock(
CodeBlock::CopyParsedBlock, *baseline));
result->setAlternative(baseline);
return result;
}
RELEASE_ASSERT(classInfo() == FunctionExecutable::info());
FunctionExecutable* executable = jsCast<FunctionExecutable*>(this);
FunctionCodeBlock* baseline = static_cast<FunctionCodeBlock*>(
executable->codeBlockFor(kind)->baselineVersion());
RefPtr<FunctionCodeBlock> result = adoptRef(new FunctionCodeBlock(
CodeBlock::CopyParsedBlock, *baseline));
result->setAlternative(baseline);
return result;
}
static void setupLLInt(VM& vm, CodeBlock* codeBlock)
{
#if ENABLE(LLINT)
LLInt::setEntrypoint(vm, codeBlock);
#else
UNUSED_PARAM(vm);
UNUSED_PARAM(codeBlock);
UNREACHABLE_FOR_PLATFORM();
#endif
}
static void setupJIT(VM& vm, CodeBlock* codeBlock)
{
#if ENABLE(JIT)
CompilationResult result = JIT::compile(&vm, codeBlock, JITCompilationMustSucceed);
RELEASE_ASSERT(result == CompilationSuccessful);
#else
UNUSED_PARAM(vm);
UNUSED_PARAM(codeBlock);
UNREACHABLE_FOR_PLATFORM();
#endif
}
JSObject* ScriptExecutable::prepareForExecutionImpl(
ExecState* exec, JSScope* scope, CodeSpecializationKind kind)
{
VM& vm = exec->vm();
DeferGC deferGC(vm.heap);
JSObject* exception = 0;
RefPtr<CodeBlock> codeBlock = newCodeBlockFor(kind, scope, exception);
if (!codeBlock) {
RELEASE_ASSERT(exception);
return exception;
}
if (Options::validateBytecode())
codeBlock->validate();
bool shouldUseLLInt;
#if !ENABLE(JIT)
// No JIT implies use of the C Loop LLINT. Override the options to reflect this.
Options::useLLInt() = true;
shouldUseLLInt = true;
#elif ENABLE(LLINT)
shouldUseLLInt = Options::useLLInt();
#else
shouldUseLLInt = false;
#endif
if (shouldUseLLInt)
setupLLInt(vm, codeBlock.get());
else
setupJIT(vm, codeBlock.get());
installCode(codeBlock.get());
return 0;
}
const ClassInfo EvalExecutable::s_info = { "EvalExecutable", &ScriptExecutable::s_info, 0, 0, CREATE_METHOD_TABLE(EvalExecutable) };
EvalExecutable* EvalExecutable::create(ExecState* exec, const SourceCode& source, bool isInStrictContext)
{
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
if (!globalObject->evalEnabled()) {
exec->vm().throwException(exec, createEvalError(exec, globalObject->evalDisabledErrorMessage()));
return 0;
}
EvalExecutable* executable = new (NotNull, allocateCell<EvalExecutable>(*exec->heap())) EvalExecutable(exec, source, isInStrictContext);
executable->finishCreation(exec->vm());
UnlinkedEvalCodeBlock* unlinkedEvalCode = globalObject->createEvalCodeBlock(exec, executable);
if (!unlinkedEvalCode)
return 0;
executable->m_unlinkedEvalCodeBlock.set(exec->vm(), executable, unlinkedEvalCode);
return executable;
}
EvalExecutable::EvalExecutable(ExecState* exec, const SourceCode& source, bool inStrictContext)
: ScriptExecutable(exec->vm().evalExecutableStructure.get(), exec, source, inStrictContext)
{
}
void EvalExecutable::destroy(JSCell* cell)
{
static_cast<EvalExecutable*>(cell)->EvalExecutable::~EvalExecutable();
}
const ClassInfo ProgramExecutable::s_info = { "ProgramExecutable", &ScriptExecutable::s_info, 0, 0, CREATE_METHOD_TABLE(ProgramExecutable) };
ProgramExecutable::ProgramExecutable(ExecState* exec, const SourceCode& source)
: ScriptExecutable(exec->vm().programExecutableStructure.get(), exec, source, false)
{
}
void ProgramExecutable::destroy(JSCell* cell)
{
static_cast<ProgramExecutable*>(cell)->ProgramExecutable::~ProgramExecutable();
}
const ClassInfo FunctionExecutable::s_info = { "FunctionExecutable", &ScriptExecutable::s_info, 0, 0, CREATE_METHOD_TABLE(FunctionExecutable) };
FunctionExecutable::FunctionExecutable(VM& vm, const SourceCode& source, UnlinkedFunctionExecutable* unlinkedExecutable, unsigned firstLine, unsigned lastLine, unsigned startColumn, unsigned endColumn, bool bodyIncludesBraces)
: ScriptExecutable(vm.functionExecutableStructure.get(), vm, source, unlinkedExecutable->isInStrictContext())
, m_unlinkedExecutable(vm, this, unlinkedExecutable)
, m_bodyIncludesBraces(bodyIncludesBraces)
{
RELEASE_ASSERT(!source.isNull());
ASSERT(source.length());
m_firstLine = firstLine;
m_lastLine = lastLine;
ASSERT(startColumn != UINT_MAX);
ASSERT(endColumn != UINT_MAX);
m_startColumn = startColumn;
m_endColumn = endColumn;
}
void FunctionExecutable::destroy(JSCell* cell)
{
static_cast<FunctionExecutable*>(cell)->FunctionExecutable::~FunctionExecutable();
}
inline const char* samplingDescription(JITCode::JITType jitType)
{
switch (jitType) {
case JITCode::InterpreterThunk:
return "Interpreter Compilation (TOTAL)";
case JITCode::BaselineJIT:
return "Baseline Compilation (TOTAL)";
case JITCode::DFGJIT:
return "DFG Compilation (TOTAL)";
case JITCode::FTLJIT:
return "FTL Compilation (TOTAL)";
default:
RELEASE_ASSERT_NOT_REACHED();
return 0;
}
}
void EvalExecutable::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
EvalExecutable* thisObject = jsCast<EvalExecutable*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
ScriptExecutable::visitChildren(thisObject, visitor);
if (thisObject->m_evalCodeBlock)
thisObject->m_evalCodeBlock->visitAggregate(visitor);
visitor.append(&thisObject->m_unlinkedEvalCodeBlock);
}
void EvalExecutable::unlinkCalls()
{
#if ENABLE(JIT)
if (!m_jitCodeForCall)
return;
RELEASE_ASSERT(m_evalCodeBlock);
m_evalCodeBlock->unlinkCalls();
#endif
}
void EvalExecutable::clearCode()
{
m_evalCodeBlock.clear();
m_unlinkedEvalCodeBlock.clear();
Base::clearCode();
}
JSObject* ProgramExecutable::checkSyntax(ExecState* exec)
{
ParserError error;
VM* vm = &exec->vm();
JSGlobalObject* lexicalGlobalObject = exec->lexicalGlobalObject();
RefPtr<ProgramNode> programNode = parse<ProgramNode>(vm, m_source, 0, Identifier(), JSParseNormal, ProgramNode::isFunctionNode ? JSParseFunctionCode : JSParseProgramCode, error);
if (programNode)
return 0;
ASSERT(error.m_type != ParserError::ErrorNone);
return error.toErrorObject(lexicalGlobalObject, m_source);
}
void ProgramExecutable::unlinkCalls()
{
#if ENABLE(JIT)
if (!m_jitCodeForCall)
return;
RELEASE_ASSERT(m_programCodeBlock);
m_programCodeBlock->unlinkCalls();
#endif
}
JSObject* ProgramExecutable::initializeGlobalProperties(VM& vm, CallFrame* callFrame, JSScope* scope)
{
RELEASE_ASSERT(scope);
JSGlobalObject* globalObject = scope->globalObject();
RELEASE_ASSERT(globalObject);
ASSERT(&globalObject->vm() == &vm);
JSObject* exception = 0;
UnlinkedProgramCodeBlock* unlinkedCodeBlock = globalObject->createProgramCodeBlock(callFrame, this, &exception);
if (exception)
return exception;
m_unlinkedProgramCodeBlock.set(vm, this, unlinkedCodeBlock);
BatchedTransitionOptimizer optimizer(vm, globalObject);
const UnlinkedProgramCodeBlock::VariableDeclations& variableDeclarations = unlinkedCodeBlock->variableDeclarations();
const UnlinkedProgramCodeBlock::FunctionDeclations& functionDeclarations = unlinkedCodeBlock->functionDeclarations();
for (size_t i = 0; i < functionDeclarations.size(); ++i) {
UnlinkedFunctionExecutable* unlinkedFunctionExecutable = functionDeclarations[i].second.get();
JSValue value = JSFunction::create(vm, unlinkedFunctionExecutable->link(vm, m_source, lineNo(), 0), scope);
globalObject->addFunction(callFrame, functionDeclarations[i].first, value);
}
for (size_t i = 0; i < variableDeclarations.size(); ++i) {
if (variableDeclarations[i].second & DeclarationStacks::IsConstant)
globalObject->addConst(callFrame, variableDeclarations[i].first);
else
globalObject->addVar(callFrame, variableDeclarations[i].first);
}
return 0;
}
void ProgramExecutable::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
ProgramExecutable* thisObject = jsCast<ProgramExecutable*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
ScriptExecutable::visitChildren(thisObject, visitor);
visitor.append(&thisObject->m_unlinkedProgramCodeBlock);
if (thisObject->m_programCodeBlock)
thisObject->m_programCodeBlock->visitAggregate(visitor);
}
void ProgramExecutable::clearCode()
{
m_programCodeBlock.clear();
m_unlinkedProgramCodeBlock.clear();
Base::clearCode();
}
FunctionCodeBlock* FunctionExecutable::baselineCodeBlockFor(CodeSpecializationKind kind)
{
FunctionCodeBlock* result;
if (kind == CodeForCall)
result = m_codeBlockForCall.get();
else {
RELEASE_ASSERT(kind == CodeForConstruct);
result = m_codeBlockForConstruct.get();
}
if (!result)
return 0;
return static_cast<FunctionCodeBlock*>(result->baselineAlternative());
}
void FunctionExecutable::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
FunctionExecutable* thisObject = jsCast<FunctionExecutable*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
ScriptExecutable::visitChildren(thisObject, visitor);
if (thisObject->m_codeBlockForCall)
thisObject->m_codeBlockForCall->visitAggregate(visitor);
if (thisObject->m_codeBlockForConstruct)
thisObject->m_codeBlockForConstruct->visitAggregate(visitor);
visitor.append(&thisObject->m_unlinkedExecutable);
}
SymbolTable* FunctionExecutable::symbolTable(CodeSpecializationKind kind)
{
return codeBlockFor(kind)->symbolTable();
}
void FunctionExecutable::clearCodeIfNotCompiling()
{
if (isCompiling())
return;
clearCode();
}
void FunctionExecutable::clearUnlinkedCodeForRecompilationIfNotCompiling()
{
if (isCompiling())
return;
m_unlinkedExecutable->clearCodeForRecompilation();
}
void FunctionExecutable::clearCode()
{
m_codeBlockForCall.clear();
m_codeBlockForConstruct.clear();
Base::clearCode();
}
void FunctionExecutable::unlinkCalls()
{
#if ENABLE(JIT)
if (!!m_jitCodeForCall) {
RELEASE_ASSERT(m_codeBlockForCall);
m_codeBlockForCall->unlinkCalls();
}
if (!!m_jitCodeForConstruct) {
RELEASE_ASSERT(m_codeBlockForConstruct);
m_codeBlockForConstruct->unlinkCalls();
}
#endif
}
FunctionExecutable* FunctionExecutable::fromGlobalCode(const Identifier& name, ExecState* exec, Debugger* debugger, const SourceCode& source, JSObject** exception)
{
UnlinkedFunctionExecutable* unlinkedExecutable = UnlinkedFunctionExecutable::fromGlobalCode(name, exec, debugger, source, exception);
if (!unlinkedExecutable)
return 0;
unsigned lineCount = unlinkedExecutable->lineCount();
unsigned firstLine = source.firstLine() + unlinkedExecutable->firstLineOffset();
unsigned startOffset = source.startOffset() + unlinkedExecutable->startOffset();
// We don't have any owner executable. The source string is effectively like a global
// string (like in the handling of eval). Hence, the startColumn is always 1.
unsigned startColumn = 1;
unsigned sourceLength = unlinkedExecutable->sourceLength();
bool endColumnIsOnStartLine = !lineCount;
// The unlinkedBodyEndColumn is based-0. Hence, we need to add 1 to it. But if the
// endColumn is on the startLine, then we need to subtract back the adjustment for
// the open brace resulting in an adjustment of 0.
unsigned endColumnExcludingBraces = unlinkedExecutable->unlinkedBodyEndColumn() + (endColumnIsOnStartLine ? 0 : 1);
unsigned startOffsetExcludingOpenBrace = startOffset + 1;
unsigned endOffsetExcludingCloseBrace = startOffset + sourceLength - 1;
SourceCode bodySource(source.provider(), startOffsetExcludingOpenBrace, endOffsetExcludingCloseBrace, firstLine, startColumn);
return FunctionExecutable::create(exec->vm(), bodySource, unlinkedExecutable, firstLine, firstLine + lineCount, startColumn, endColumnExcludingBraces, false);
}
String FunctionExecutable::paramString() const
{
return m_unlinkedExecutable->paramString();
}
CodeBlockHash ExecutableBase::hashFor(CodeSpecializationKind kind) const
{
if (this->classInfo() == NativeExecutable::info())
return jsCast<const NativeExecutable*>(this)->hashFor(kind);
return jsCast<const ScriptExecutable*>(this)->hashFor(kind);
}
CodeBlockHash NativeExecutable::hashFor(CodeSpecializationKind kind) const
{
if (kind == CodeForCall)
return CodeBlockHash(static_cast<unsigned>(bitwise_cast<size_t>(m_function)));
RELEASE_ASSERT(kind == CodeForConstruct);
return CodeBlockHash(static_cast<unsigned>(bitwise_cast<size_t>(m_constructor)));
}
CodeBlockHash ScriptExecutable::hashFor(CodeSpecializationKind kind) const
{
return CodeBlockHash(source(), kind);
}
}