inline void* virtualFor(ExecState* execCallee, CodeSpecializationKind kind)
{
ExecState* exec = execCallee->callerFrame();
JSValue calleeAsValue = execCallee->calleeAsValue();
JSCell* calleeAsFunctionCell = getJSFunction(calleeAsValue);
if (UNLIKELY(!calleeAsFunctionCell))
return handleHostCall(execCallee, calleeAsValue, kind);
JSFunction* function = asFunction(calleeAsFunctionCell);
execCallee->setScopeChain(function->scopeUnchecked());
ExecutableBase* executable = function->executable();
if (UNLIKELY(!executable->hasJITCodeFor(kind))) {
FunctionExecutable* functionExecutable = static_cast<FunctionExecutable*>(executable);
JSObject* error = functionExecutable->compileFor(execCallee, function->scope(), kind);
if (error) {
exec->globalData().exception = error;
return 0;
}
}
return executable->generatedJITCodeWithArityCheckFor(kind).executableAddress();
}
inline void* linkFor(ExecState* execCallee, ReturnAddressPtr returnAddress, CodeSpecializationKind kind)
{
ExecState* exec = execCallee->callerFrame();
JSGlobalData* globalData = &exec->globalData();
NativeCallFrameTracer tracer(globalData, exec);
JSValue calleeAsValue = execCallee->calleeAsValue();
JSCell* calleeAsFunctionCell = getJSFunction(calleeAsValue);
if (!calleeAsFunctionCell)
return handleHostCall(execCallee, calleeAsValue, kind);
JSFunction* callee = jsCast<JSFunction*>(calleeAsFunctionCell);
execCallee->setScopeChain(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->compileFor(execCallee, callee->scope(), kind);
if (error) {
globalData->exception = createStackOverflowError(exec);
return 0;
}
codeBlock = &functionExecutable->generatedBytecodeFor(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(returnAddress);
if (!callLinkInfo.seenOnce())
callLinkInfo.setSeen();
else
dfgLinkFor(execCallee, callLinkInfo, codeBlock, callee, codePtr, kind);
return codePtr.executableAddress();
}