inline char* linkFor(ExecState* execCallee, CodeSpecializationKind kind)
{
ExecState* exec = execCallee->callerFrame();
VM* vm = &exec->vm();
NativeCallFrameTracer tracer(vm, exec);
JSValue calleeAsValue = execCallee->calleeAsValue();
JSCell* calleeAsFunctionCell = getJSFunction(calleeAsValue);
if (!calleeAsFunctionCell)
return reinterpret_cast<char*>(handleHostCall(execCallee, calleeAsValue, kind));
JSFunction* callee = jsCast<JSFunction*>(calleeAsFunctionCell);
execCallee->setScope(callee->scopeUnchecked());
ExecutableBase* executable = callee->executable();
MacroAssemblerCodePtr codePtr;
CodeBlock* codeBlock = 0;
if (executable->isHostFunction())
codePtr = executable->generatedJITCodeFor(kind)->addressForCall();
else {
FunctionExecutable* functionExecutable = static_cast<FunctionExecutable*>(executable);
JSObject* error = functionExecutable->prepareForExecution(execCallee, callee->scope(), kind);
if (error) {
vm->throwException(exec, createStackOverflowError(exec));
return reinterpret_cast<char*>(vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress());
}
codeBlock = functionExecutable->codeBlockFor(kind);
if (execCallee->argumentCountIncludingThis() < static_cast<size_t>(codeBlock->numParameters()))
codePtr = functionExecutable->generatedJITCodeWithArityCheckFor(kind);
else
codePtr = functionExecutable->generatedJITCodeFor(kind)->addressForCall();
}
CallLinkInfo& callLinkInfo = exec->codeBlock()->getCallLinkInfo(execCallee->returnPC());
if (!callLinkInfo.seenOnce())
callLinkInfo.setSeen();
else
linkFor(execCallee, callLinkInfo, codeBlock, callee, codePtr, kind);
return reinterpret_cast<char*>(codePtr.executableAddress());
}
inline char* virtualForWithFunction(ExecState* execCallee, CodeSpecializationKind kind, JSCell*& calleeAsFunctionCell)
{
ExecState* exec = execCallee->callerFrame();
VM* vm = &exec->vm();
NativeCallFrameTracer tracer(vm, exec);
JSValue calleeAsValue = execCallee->calleeAsValue();
calleeAsFunctionCell = getJSFunction(calleeAsValue);
if (UNLIKELY(!calleeAsFunctionCell))
return reinterpret_cast<char*>(handleHostCall(execCallee, calleeAsValue, kind));
JSFunction* function = jsCast<JSFunction*>(calleeAsFunctionCell);
execCallee->setScope(function->scopeUnchecked());
ExecutableBase* executable = function->executable();
if (UNLIKELY(!executable->hasJITCodeFor(kind))) {
FunctionExecutable* functionExecutable = static_cast<FunctionExecutable*>(executable);
JSObject* error = functionExecutable->prepareForExecution(execCallee, function->scope(), kind);
if (error) {
exec->vm().throwException(execCallee, error);
return reinterpret_cast<char*>(vm->getCTIStub(throwExceptionFromCallSlowPathGenerator).code().executableAddress());
}
}
return reinterpret_cast<char*>(executable->generatedJITCodeWithArityCheckFor(kind).executableAddress());
}