static JSValue setNewValueFromTimeArgs(ExecState* exec, JSValue thisValue, const ArgList& args, int numArgsToUse, bool inputIsUTC) { if (!thisValue.isObject(&DateInstance::info)) return throwError(exec, TypeError); DateInstance* thisDateObj = asDateInstance(thisValue); double milli = thisDateObj->internalNumber(); if (args.isEmpty() || isnan(milli)) { JSValue result = jsNaN(exec); thisDateObj->setInternalValue(result); return result; } double secs = floor(milli / msPerSecond); double ms = milli - secs * msPerSecond; GregorianDateTime t; thisDateObj->msToGregorianDateTime(milli, inputIsUTC, t); if (!fillStructuresUsingTimeArgs(exec, args, numArgsToUse, &ms, &t)) { JSValue result = jsNaN(exec); thisDateObj->setInternalValue(result); return result; } JSValue result = jsNumber(exec, gregorianDateTimeToMS(t, ms, inputIsUTC)); thisDateObj->setInternalValue(result); return result; }
static EncodedJSValue setNewValueFromTimeArgs(ExecState* exec, int numArgsToUse, bool inputIsUTC) { JSValue thisValue = exec->thisValue(); if (!thisValue.inherits(DateInstance::info())) return throwVMTypeError(exec); DateInstance* thisDateObj = asDateInstance(thisValue); double milli = thisDateObj->internalNumber(); VM& vm = exec->vm(); if (!exec->argumentCount() || std::isnan(milli)) { JSValue result = jsNaN(); thisDateObj->setInternalValue(vm, result); return JSValue::encode(result); } double secs = floor(milli / msPerSecond); double ms = milli - secs * msPerSecond; const GregorianDateTime* other = inputIsUTC ? thisDateObj->gregorianDateTimeUTC(exec) : thisDateObj->gregorianDateTime(exec); if (!other) return JSValue::encode(jsNaN()); GregorianDateTime gregorianDateTime; gregorianDateTime.copyFrom(*other); if (!fillStructuresUsingTimeArgs(exec, numArgsToUse, &ms, &gregorianDateTime)) { JSValue result = jsNaN(); thisDateObj->setInternalValue(vm, result); return JSValue::encode(result); } JSValue result = jsNumber(gregorianDateTimeToMS(vm, gregorianDateTime, ms, inputIsUTC)); thisDateObj->setInternalValue(vm, result); return JSValue::encode(result); }