Example #1
0
JSObject* EvalExecutable::compileInternal(ExecState* exec, JSScope* scope, JITCode::JITType jitType, unsigned bytecodeIndex)
{
    SamplingRegion samplingRegion(samplingDescription(jitType));
    
#if !ENABLE(JIT)
    UNUSED_PARAM(jitType);
    UNUSED_PARAM(bytecodeIndex);
#endif
    JSGlobalData* globalData = &exec->globalData();
    JSGlobalObject* lexicalGlobalObject = exec->lexicalGlobalObject();
    
    if (!!m_evalCodeBlock) {
        OwnPtr<EvalCodeBlock> newCodeBlock = adoptPtr(new EvalCodeBlock(CodeBlock::CopyParsedBlock, *m_evalCodeBlock));
        newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_evalCodeBlock.release()));
        m_evalCodeBlock = newCodeBlock.release();
    } else {
        UNUSED_PARAM(scope);
        UNUSED_PARAM(globalData);
        UNUSED_PARAM(lexicalGlobalObject);
        if (!lexicalGlobalObject->evalEnabled())
            return throwError(exec, createEvalError(exec, lexicalGlobalObject->evalDisabledErrorMessage()));

        JSObject* exception = 0;
        UnlinkedEvalCodeBlock* unlinkedEvalCode = lexicalGlobalObject->createEvalCodeBlock(exec, this, &exception);
        if (!unlinkedEvalCode)
            return exception;

        OwnPtr<CodeBlock> previousCodeBlock = m_evalCodeBlock.release();
        ASSERT((jitType == JITCode::bottomTierJIT()) == !previousCodeBlock);
        m_unlinkedEvalCodeBlock.set(*globalData, this, unlinkedEvalCode);
        m_evalCodeBlock = adoptPtr(new EvalCodeBlock(this, unlinkedEvalCode, lexicalGlobalObject, source().provider(), scope->localDepth(), previousCodeBlock.release()));
        m_evalCodeBlock->copyPostParseDataFromAlternative();
    }

#if ENABLE(JIT)
    if (!prepareForExecution(exec, m_evalCodeBlock, m_jitCodeForCall, jitType, bytecodeIndex))
        return 0;
#endif

#if ENABLE(JIT)
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_evalCodeBlock) + m_jitCodeForCall.size());
#else
    Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_evalCodeBlock));
#endif

    return 0;
}
Example #2
0
EvalExecutable* EvalExecutable::create(ExecState* exec, const SourceCode& source, bool isInStrictContext, ThisTDZMode thisTDZMode, const VariableEnvironment* variablesUnderTDZ)
{
    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, thisTDZMode, variablesUnderTDZ);
    if (!unlinkedEvalCode)
        return 0;

    executable->m_unlinkedEvalCodeBlock.set(exec->vm(), executable, unlinkedEvalCode);

    return executable;
}
Example #3
0
EvalExecutable* EvalExecutable::create(ExecState* exec, const SourceCode& source, bool isInStrictContext, DerivedContextType derivedContextType, bool isArrowFunctionContext, EvalContextType evalContextType, const VariableEnvironment* variablesUnderTDZ)
{
    VM& vm = exec->vm();
    auto scope = DECLARE_THROW_SCOPE(vm);

    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
    if (!globalObject->evalEnabled()) {
        throwException(exec, scope, createEvalError(exec, globalObject->evalDisabledErrorMessage()));
        return 0;
    }

    EvalExecutable* executable = new (NotNull, allocateCell<EvalExecutable>(*exec->heap())) EvalExecutable(exec, source, isInStrictContext, derivedContextType, isArrowFunctionContext, evalContextType);
    executable->finishCreation(vm);

    UnlinkedEvalCodeBlock* unlinkedEvalCode = globalObject->createEvalCodeBlock(exec, executable, variablesUnderTDZ);
    if (!unlinkedEvalCode)
        return 0;

    executable->m_unlinkedEvalCodeBlock.set(vm, executable, unlinkedEvalCode);

    return executable;
}