static bool extractSourceInformationFromException(JSC::ExecState* exec, JSObject* exceptionObject, int* lineNumber, int* columnNumber, String* sourceURL)
{
VM& vm = exec->vm();
auto scope = DECLARE_CATCH_SCOPE(vm);
// FIXME: <http://webkit.org/b/115087> Web Inspector: Should not need to evaluate JavaScript handling exceptions
JSValue lineValue = exceptionObject->getDirect(vm, Identifier::fromString(exec, "line"));
JSValue columnValue = exceptionObject->getDirect(vm, Identifier::fromString(exec, "column"));
JSValue sourceURLValue = exceptionObject->getDirect(vm, Identifier::fromString(exec, "sourceURL"));
bool result = false;
if (lineValue && lineValue.isNumber()
&& sourceURLValue && sourceURLValue.isString()) {
*lineNumber = int(lineValue.toNumber(exec));
*columnNumber = columnValue && columnValue.isNumber() ? int(columnValue.toNumber(exec)) : 0;
*sourceURL = sourceURLValue.toWTFString(exec);
result = true;
} else if (ErrorInstance* error = jsDynamicCast<ErrorInstance*>(vm, exceptionObject)) {
unsigned unsignedLine;
unsigned unsignedColumn;
result = getLineColumnAndSource(error->stackTrace(), unsignedLine, unsignedColumn, *sourceURL);
*lineNumber = static_cast<int>(unsignedLine);
*columnNumber = static_cast<int>(unsignedColumn);
}
if (sourceURL->isEmpty())
*sourceURL = "undefined"_s;
scope.clearException();
return result;
}
PassRefPtr<ScriptCallStack> createScriptCallStackFromException(JSC::ExecState* exec, JSC::JSValue& exception, size_t maxStackSize)
{
Vector<ScriptCallFrame> frames;
RefCountedArray<StackFrame> stackTrace = exec->vm().exceptionStack();
for (size_t i = 0; i < stackTrace.size() && i < maxStackSize; i++) {
if (!stackTrace[i].callee && frames.size())
break;
unsigned line;
unsigned column;
stackTrace[i].computeLineAndColumn(line, column);
String functionName = stackTrace[i].friendlyFunctionName(exec);
frames.append(ScriptCallFrame(functionName, stackTrace[i].sourceURL, line, column));
}
// FIXME: <http://webkit.org/b/115087> Web Inspector: WebCore::reportException should not evaluate JavaScript handling exceptions
// Fallback to getting at least the line and sourceURL from the exception if it has values and the exceptionStack doesn't.
if (frames.size() > 0) {
const ScriptCallFrame& firstCallFrame = frames.first();
JSObject* exceptionObject = exception.toObject(exec);
if (exception.isObject() && firstCallFrame.sourceURL().isEmpty()) {
JSValue lineValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "line"));
int lineNumber = lineValue && lineValue.isNumber() ? int(lineValue.toNumber(exec)) : 0;
JSValue columnValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "column"));
int columnNumber = columnValue && columnValue.isNumber() ? int(columnValue.toNumber(exec)) : 0;
JSValue sourceURLValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "sourceURL"));
String exceptionSourceURL = sourceURLValue && sourceURLValue.isString() ? sourceURLValue.toString(exec)->value(exec) : ASCIILiteral("undefined");
frames[0] = ScriptCallFrame(firstCallFrame.functionName(), exceptionSourceURL, lineNumber, columnNumber);
}
}
return ScriptCallStack::create(frames);
}
static RefPtr<InspectorValue> jsToInspectorValue(ExecState* scriptState, JSValue value, int maxDepth)
{
if (!value) {
ASSERT_NOT_REACHED();
return nullptr;
}
if (!maxDepth)
return nullptr;
maxDepth--;
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorValue::create(value.asBoolean());
if (value.isNumber() && value.isDouble())
return InspectorValue::create(value.asNumber());
if (value.isNumber() && value.isMachineInt())
return InspectorValue::create(static_cast<int>(value.asMachineInt()));
if (value.isString())
return InspectorValue::create(value.getString(scriptState));
if (value.isObject()) {
if (isJSArray(value)) {
Ref<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
JSValue element = array->getIndex(scriptState, i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
if (!elementValue)
return nullptr;
inspectorArray->pushValue(WTFMove(elementValue));
}
return WTFMove(inspectorArray);
}
Ref<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState, PropertyNameMode::Strings);
object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, EnumerationMode());
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
if (!inspectorValue)
return nullptr;
inspectorObject->setValue(name.string(), WTFMove(inspectorValue));
}
return WTFMove(inspectorObject);
}
ASSERT_NOT_REACHED();
return nullptr;
}
// See ES5.1 9.12
bool sameValue(ExecState* exec, JSValue a, JSValue b)
{
if (!a.isNumber())
return JSValue::strictEqual(exec, a, b);
if (!b.isNumber())
return false;
double x = a.asNumber();
double y = b.asNumber();
if (isnan(x))
return isnan(y);
return bitwise_cast<uint64_t>(x) == bitwise_cast<uint64_t>(y);
}
void reportException(ExecState* exec, JSValue exception, CachedScript* cachedScript)
{
if (isTerminatedExecutionException(exception))
return;
Interpreter::ErrorHandlingMode mode(exec);
RefPtr<ScriptCallStack> callStack(createScriptCallStackFromException(exec, exception, ScriptCallStack::maxCallStackSizeToCapture));
exec->clearException();
exec->clearSupplementaryExceptionInfo();
JSDOMGlobalObject* globalObject = jsCast<JSDOMGlobalObject*>(exec->lexicalGlobalObject());
if (JSDOMWindow* window = jsDynamicCast<JSDOMWindow*>(globalObject)) {
if (!window->impl()->isCurrentlyDisplayedInFrame())
return;
}
int lineNumber = 0;
int columnNumber = 0;
String exceptionSourceURL;
if (callStack->size()) {
const ScriptCallFrame& frame = callStack->at(0);
lineNumber = frame.lineNumber();
columnNumber = frame.columnNumber();
exceptionSourceURL = frame.sourceURL();
} else {
// There may not be an exceptionStack for a <script> SyntaxError. Fallback to getting at least the line and sourceURL from the exception.
JSObject* exceptionObject = exception.toObject(exec);
JSValue lineValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "line"));
lineNumber = lineValue && lineValue.isNumber() ? int(lineValue.toNumber(exec)) : 0;
JSValue columnValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "column"));
columnNumber = columnValue && columnValue.isNumber() ? int(columnValue.toNumber(exec)) : 0;
JSValue sourceURLValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "sourceURL"));
exceptionSourceURL = sourceURLValue && sourceURLValue.isString() ? sourceURLValue.toString(exec)->value(exec) : ASCIILiteral("undefined");
}
String errorMessage;
if (ExceptionBase* exceptionBase = toExceptionBase(exception))
errorMessage = exceptionBase->message() + ": " + exceptionBase->description();
else {
// FIXME: <http://webkit.org/b/115087> Web Inspector: WebCore::reportException should not evaluate JavaScript handling exceptions
// If this is a custon exception object, call toString on it to try and get a nice string representation for the exception.
errorMessage = exception.toString(exec)->value(exec);
exec->clearException();
exec->clearSupplementaryExceptionInfo();
}
ScriptExecutionContext* scriptExecutionContext = globalObject->scriptExecutionContext();
scriptExecutionContext->reportException(errorMessage, lineNumber, columnNumber, exceptionSourceURL, callStack->size() ? callStack : 0, cachedScript);
}
JSValue JSInjectedScriptHost::subtype(ExecState* exec)
{
if (exec->argumentCount() < 1)
return jsUndefined();
JSValue value = exec->uncheckedArgument(0);
if (value.isString())
return exec->vm().smallStrings.stringString();
if (value.isBoolean())
return exec->vm().smallStrings.booleanString();
if (value.isNumber())
return exec->vm().smallStrings.numberString();
if (value.isSymbol())
return exec->vm().smallStrings.symbolString();
JSObject* object = asObject(value);
if (object) {
if (object->isErrorInstance())
return jsNontrivialString(exec, ASCIILiteral("error"));
// Consider class constructor functions class objects.
JSFunction* function = jsDynamicCast<JSFunction*>(value);
if (function && function->isClassConstructorFunction())
return jsNontrivialString(exec, ASCIILiteral("class"));
}
if (value.inherits(JSArray::info()))
return jsNontrivialString(exec, ASCIILiteral("array"));
if (value.inherits(DirectArguments::info()) || value.inherits(ScopedArguments::info()))
return jsNontrivialString(exec, ASCIILiteral("array"));
if (value.inherits(DateInstance::info()))
return jsNontrivialString(exec, ASCIILiteral("date"));
if (value.inherits(RegExpObject::info()))
return jsNontrivialString(exec, ASCIILiteral("regexp"));
if (value.inherits(JSMap::info()))
return jsNontrivialString(exec, ASCIILiteral("map"));
if (value.inherits(JSSet::info()))
return jsNontrivialString(exec, ASCIILiteral("set"));
if (value.inherits(JSWeakMap::info()))
return jsNontrivialString(exec, ASCIILiteral("weakmap"));
if (value.inherits(JSWeakSet::info()))
return jsNontrivialString(exec, ASCIILiteral("weakset"));
if (value.inherits(JSArrayIterator::info())
|| value.inherits(JSMapIterator::info())
|| value.inherits(JSSetIterator::info())
|| value.inherits(JSStringIterator::info()))
return jsNontrivialString(exec, ASCIILiteral("iterator"));
if (value.inherits(JSInt8Array::info()) || value.inherits(JSInt16Array::info()) || value.inherits(JSInt32Array::info()))
return jsNontrivialString(exec, ASCIILiteral("array"));
if (value.inherits(JSUint8Array::info()) || value.inherits(JSUint16Array::info()) || value.inherits(JSUint32Array::info()))
return jsNontrivialString(exec, ASCIILiteral("array"));
if (value.inherits(JSFloat32Array::info()) || value.inherits(JSFloat64Array::info()))
return jsNontrivialString(exec, ASCIILiteral("array"));
return impl().subtype(exec, value);
}
RuntimeType runtimeTypeForValue(JSValue value)
{
if (UNLIKELY(!value))
return TypeNothing;
if (value.isUndefined())
return TypeUndefined;
if (value.isNull())
return TypeNull;
if (value.isAnyInt())
return TypeAnyInt;
if (value.isNumber())
return TypeNumber;
if (value.isString())
return TypeString;
if (value.isBoolean())
return TypeBoolean;
if (value.isObject())
return TypeObject;
if (value.isFunction())
return TypeFunction;
if (value.isSymbol())
return TypeSymbol;
return TypeNothing;
}
void dumpImmediate(JSValue value)
{
if (value.isNull())
write(NullTag);
else if (value.isUndefined())
write(UndefinedTag);
else if (value.isNumber()) {
if (value.isInt32()) {
if (!value.asInt32())
write(ZeroTag);
else if (value.asInt32() == 1)
write(OneTag);
else {
write(IntTag);
write(static_cast<uint32_t>(value.asInt32()));
}
} else {
write(DoubleTag);
write(value.asDouble());
}
} else if (value.isBoolean()) {
if (value.isTrue())
write(TrueTag);
else
write(FalseTag);
}
}
static void updateResultProfileForBinaryArithOp(ExecState* exec, Instruction* pc, JSValue result, JSValue left, JSValue right)
{
CodeBlock* codeBlock = exec->codeBlock();
unsigned bytecodeOffset = codeBlock->bytecodeOffset(pc);
ResultProfile* profile = codeBlock->ensureResultProfile(bytecodeOffset);
if (result.isNumber()) {
if (!result.isInt32()) {
if (left.isInt32() && right.isInt32())
profile->setObservedInt32Overflow();
double doubleVal = result.asNumber();
if (!doubleVal && std::signbit(doubleVal))
profile->setObservedNegZeroDouble();
else {
profile->setObservedNonNegZeroDouble();
// The Int52 overflow check here intentionally omits 1ll << 51 as a valid negative Int52 value.
// Therefore, we will get a false positive if the result is that value. This is intentionally
// done to simplify the checking algorithm.
static const int64_t int52OverflowPoint = (1ll << 51);
int64_t int64Val = static_cast<int64_t>(std::abs(doubleVal));
if (int64Val >= int52OverflowPoint)
profile->setObservedInt52Overflow();
}
}
} else
profile->setObservedNonNumber();
}
static inline UString gap(ExecState* exec, JSValue space)
{
const unsigned maxGapLength = 10;
space = unwrapBoxedPrimitive(exec, space);
// If the space value is a number, create a gap string with that number of spaces.
if (space.isNumber()) {
double spaceCount = space.asNumber();
int count;
if (spaceCount > maxGapLength)
count = maxGapLength;
else if (!(spaceCount > 0))
count = 0;
else
count = static_cast<int>(spaceCount);
UChar spaces[maxGapLength];
for (int i = 0; i < count; ++i)
spaces[i] = ' ';
return UString(spaces, count);
}
// If the space value is a string, use it as the gap string, otherwise use no gap string.
UString spaces = space.getString(exec);
if (spaces.length() > maxGapLength) {
spaces = spaces.substringSharingImpl(0, maxGapLength);
}
return spaces;
}
static inline void putByVal(ExecState* exec, JSValue baseValue, uint32_t index, JSValue value)
{
JSGlobalData* globalData = &exec->globalData();
if (isJSArray(baseValue)) {
JSArray* array = asArray(baseValue);
if (array->canSetIndex(index)) {
array->setIndex(*globalData, index, value);
return;
}
JSArray::putByIndex(array, exec, index, value, strict);
return;
}
if (isJSByteArray(baseValue) && asByteArray(baseValue)->canAccessIndex(index)) {
JSByteArray* byteArray = asByteArray(baseValue);
// FIXME: the JITstub used to relink this to an optimized form!
if (value.isInt32()) {
byteArray->setIndex(index, value.asInt32());
return;
}
if (value.isNumber()) {
byteArray->setIndex(index, value.asNumber());
return;
}
}
baseValue.putByIndex(exec, index, value, strict);
}
static void updateArithProfileForUnaryArithOp(Instruction* pc, JSValue result, JSValue operand)
{
ArithProfile& profile = *bitwise_cast<ArithProfile*>(&pc[3].u.operand);
profile.observeLHS(operand);
ASSERT(result.isNumber());
if (!result.isInt32()) {
if (operand.isInt32())
profile.setObservedInt32Overflow();
double doubleVal = result.asNumber();
if (!doubleVal && std::signbit(doubleVal))
profile.setObservedNegZeroDouble();
else {
profile.setObservedNonNegZeroDouble();
// The Int52 overflow check here intentionally omits 1ll << 51 as a valid negative Int52 value.
// Therefore, we will get a false positive if the result is that value. This is intentionally
// done to simplify the checking algorithm.
static const int64_t int52OverflowPoint = (1ll << 51);
int64_t int64Val = static_cast<int64_t>(std::abs(doubleVal));
if (int64Val >= int52OverflowPoint)
profile.setObservedInt52Overflow();
}
}
}
JSValue JSInjectedScriptHost::type(ExecState* exec)
{
if (exec->argumentCount() < 1)
return jsUndefined();
JSValue value = exec->argument(0);
if (value.isString())
return jsString(exec, String("string"));
if (value.inherits(&JSArray::s_info))
return jsString(exec, String("array"));
if (value.isBoolean())
return jsString(exec, String("boolean"));
if (value.isNumber())
return jsString(exec, String("number"));
if (value.inherits(&DateInstance::s_info))
return jsString(exec, String("date"));
if (value.inherits(&RegExpObject::s_info))
return jsString(exec, String("regexp"));
if (value.inherits(&JSNode::s_info))
return jsString(exec, String("node"));
if (value.inherits(&JSNodeList::s_info))
return jsString(exec, String("array"));
if (value.inherits(&JSHTMLCollection::s_info))
return jsString(exec, String("array"));
if (value.inherits(&JSInt8Array::s_info) || value.inherits(&JSInt16Array::s_info) || value.inherits(&JSInt32Array::s_info))
return jsString(exec, String("array"));
if (value.inherits(&JSUint8Array::s_info) || value.inherits(&JSUint16Array::s_info) || value.inherits(&JSUint32Array::s_info))
return jsString(exec, String("array"));
if (value.inherits(&JSFloat32Array::s_info) || value.inherits(&JSFloat64Array::s_info))
return jsString(exec, String("array"));
return jsUndefined();
}
JSValue jsTypeStringForValue(VM& vm, JSGlobalObject* globalObject, JSValue v)
{
if (v.isUndefined())
return vm.smallStrings.undefinedString();
if (v.isBoolean())
return vm.smallStrings.booleanString();
if (v.isNumber())
return vm.smallStrings.numberString();
if (v.isString())
return vm.smallStrings.stringString();
if (v.isSymbol())
return vm.smallStrings.symbolString();
if (v.isObject()) {
JSObject* object = asObject(v);
// Return "undefined" for objects that should be treated
// as null when doing comparisons.
if (object->structure(vm)->masqueradesAsUndefined(globalObject))
return vm.smallStrings.undefinedString();
if (object->type() == JSFunctionType)
return vm.smallStrings.functionString();
if (object->inlineTypeFlags() & TypeOfShouldCallGetCallData) {
CallData callData;
JSObject* object = asObject(v);
if (object->methodTable(vm)->getCallData(object, callData) != CallTypeNone)
return vm.smallStrings.functionString();
}
}
return vm.smallStrings.objectString();
}
RuntimeType TypeSet::getRuntimeTypeForValue(JSValue v)
{
RuntimeType ret;
if (v.isFunction())
ret = TypeFunction;
else if (v.isUndefined())
ret = TypeUndefined;
else if (v.isNull())
ret = TypeNull;
else if (v.isBoolean())
ret = TypeBoolean;
else if (v.isMachineInt())
ret = TypeMachineInt;
else if (v.isNumber())
ret = TypeNumber;
else if (v.isString())
ret = TypeString;
else if (v.isPrimitive())
ret = TypePrimitive;
else if (v.isObject())
ret = TypeObject;
else
CRASH();
return ret;
}
bool isWithinPowerOfTwoForConstant(Node* node)
{
JSValue immediateValue = node->asJSValue();
if (!immediateValue.isNumber())
return false;
double immediate = immediateValue.asNumber();
return immediate > -(static_cast<int64_t>(1) << power) && immediate < (static_cast<int64_t>(1) << power);
}
double valueToDate(ExecState* exec, JSValue value)
{
if (value.isNumber())
return value.asNumber();
if (!value.inherits(DateInstance::info()))
return std::numeric_limits<double>::quiet_NaN();
return static_cast<DateInstance*>(value.toObject(exec))->internalNumber();
}
bool JSValueIsNumber(JSContextRef ctx, JSValueRef value)
{
ExecState* exec = toJS(ctx);
APIEntryShim entryShim(exec);
JSValue jsValue = toJS(exec, value);
return jsValue.isNumber();
}
bool JSValueIsNumber(JSContextRef ctx, JSValueRef value)
{
ExecState* exec = toJS(ctx);
exec->globalData().heap.registerThread();
JSLock lock(exec);
JSValue jsValue = toJS(exec, value);
return jsValue.isNumber();
}
char* newTypedArrayWithOneArgument(
ExecState* exec, Structure* structure, EncodedJSValue encodedValue)
{
VM& vm = exec->vm();
NativeCallFrameTracer tracer(&vm, exec);
JSValue value = JSValue::decode(encodedValue);
if (JSArrayBuffer* jsBuffer = jsDynamicCast<JSArrayBuffer*>(value)) {
RefPtr<ArrayBuffer> buffer = jsBuffer->impl();
if (buffer->byteLength() % ViewClass::elementSize) {
vm.throwException(exec, createRangeError(exec, ASCIILiteral("ArrayBuffer length minus the byteOffset is not a multiple of the element size")));
return 0;
}
return bitwise_cast<char*>(
ViewClass::create(
exec, structure, buffer, 0, buffer->byteLength() / ViewClass::elementSize));
}
if (JSObject* object = jsDynamicCast<JSObject*>(value)) {
unsigned length = object->get(exec, vm.propertyNames->length).toUInt32(exec);
if (exec->hadException())
return 0;
ViewClass* result = ViewClass::createUninitialized(exec, structure, length);
if (!result)
return 0;
if (!result->set(exec, object, 0, length))
return 0;
return bitwise_cast<char*>(result);
}
int length;
if (value.isInt32())
length = value.asInt32();
else if (!value.isNumber()) {
vm.throwException(exec, createTypeError(exec, ASCIILiteral("Invalid array length argument")));
return 0;
} else {
length = static_cast<int>(value.asNumber());
if (length != value.asNumber()) {
vm.throwException(exec, createTypeError(exec, ASCIILiteral("Invalid array length argument (fractional lengths not allowed)")));
return 0;
}
}
if (length < 0) {
vm.throwException(exec, createRangeError(exec, ASCIILiteral("Requested length is negative")));
return 0;
}
return bitwise_cast<char*>(ViewClass::create(exec, structure, length));
}
JSLR_API bool _cdecl JSTryConvertToNumber(JSContextRef ctx, JSValueRef value, double* result)
{
ExecState* exec = toJS(ctx);
JSValue jsValue = toJS(exec, value);
if (jsValue.isNumber())
{
*result = jsValue.toNumber(exec);
return true;
}
return false;
}
bool JSValueIsNumber(JSContextRef ctx, JSValueRef value)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return false;
}
ExecState* exec = toJS(ctx);
JSLockHolder locker(exec);
JSValue jsValue = toJS(exec, value);
return jsValue.isNumber();
}
static PassRefPtr<InspectorValue> jsToInspectorValue(ScriptState* scriptState, JSValue value, int maxDepth)
{
if (!value) {
ASSERT_NOT_REACHED();
return 0;
}
if (!maxDepth)
return 0;
maxDepth--;
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorBasicValue::create(value.asBoolean());
if (value.isNumber())
return InspectorBasicValue::create(value.asNumber());
if (value.isString()) {
String s = value.getString(scriptState);
return InspectorString::create(String(s.characters(), s.length()));
}
if (value.isObject()) {
if (isJSArray(value)) {
RefPtr<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
// FIXME: What if the array is in sparse mode? https://bugs.webkit.org/show_bug.cgi?id=95610
JSValue element = array->getIndexQuickly(i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
if (!elementValue)
return 0;
inspectorArray->pushValue(elementValue);
}
return inspectorArray;
}
RefPtr<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState);
object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, ExcludeDontEnumProperties);
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
if (!inspectorValue)
return 0;
inspectorObject->setValue(String(name.characters(), name.length()), inspectorValue);
}
return inspectorObject;
}
ASSERT_NOT_REACHED();
return 0;
}
// 15.3.4.5 Function.prototype.bind (thisArg [, arg1 [, arg2, ...]])
EncodedJSValue JSC_HOST_CALL functionProtoFuncBind(ExecState* exec)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSGlobalObject* globalObject = exec->callee()->globalObject();
// Let Target be the this value.
JSValue target = exec->thisValue();
// If IsCallable(Target) is false, throw a TypeError exception.
CallData callData;
CallType callType = getCallData(target, callData);
if (callType == CallType::None)
return throwVMTypeError(exec, scope);
// Primitive values are not callable.
ASSERT(target.isObject());
JSObject* targetObject = asObject(target);
// Let A be a new (possibly empty) internal list of all of the argument values provided after thisArg (arg1, arg2 etc), in order.
size_t numBoundArgs = exec->argumentCount() > 1 ? exec->argumentCount() - 1 : 0;
JSArray* boundArgs;
if (numBoundArgs) {
boundArgs = JSArray::tryCreateUninitialized(vm, globalObject->arrayStructureForIndexingTypeDuringAllocation(ArrayWithContiguous), numBoundArgs);
if (!boundArgs)
return JSValue::encode(throwOutOfMemoryError(exec, scope));
for (size_t i = 0; i < numBoundArgs; ++i)
boundArgs->initializeIndex(vm, i, exec->argument(i + 1));
} else
boundArgs = nullptr;
// If the [[Class]] internal property of Target is "Function", then ...
// Else set the length own property of F to 0.
unsigned length = 0;
if (targetObject->hasOwnProperty(exec, exec->propertyNames().length)) {
if (exec->hadException())
return JSValue::encode(jsUndefined());
// a. Let L be the length property of Target minus the length of A.
// b. Set the length own property of F to either 0 or L, whichever is larger.
JSValue lengthValue = target.get(exec, exec->propertyNames().length);
if (lengthValue.isNumber()) {
unsigned targetLength = (unsigned)lengthValue.asNumber();
if (targetLength > numBoundArgs)
length = targetLength - numBoundArgs;
}
}
JSValue nameProp = target.get(exec, exec->propertyNames().name);
JSString* name = nameProp.isString() ? nameProp.toString(exec) : jsEmptyString(exec);
return JSValue::encode(JSBoundFunction::create(vm, exec, globalObject, targetObject, exec->argument(0), boundArgs, length, name->value(exec)));
}
static PassRefPtr<InspectorValue> jsToInspectorValue(ScriptState* scriptState, JSValue value)
{
if (!value) {
ASSERT_NOT_REACHED();
return 0;
}
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorBasicValue::create(value.getBoolean());
if (value.isNumber())
return InspectorBasicValue::create(value.uncheckedGetNumber());
if (value.isString()) {
UString s = value.getString(scriptState);
return InspectorString::create(String(s.characters(), s.length()));
}
if (value.isObject()) {
if (isJSArray(&scriptState->globalData(), value)) {
RefPtr<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
JSValue element = array->getIndex(i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element);
if (!elementValue) {
ASSERT_NOT_REACHED();
elementValue = InspectorValue::null();
}
inspectorArray->pushValue(elementValue);
}
return inspectorArray;
}
RefPtr<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState);
object->getOwnPropertyNames(scriptState, propertyNames);
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue);
if (!inspectorValue) {
ASSERT_NOT_REACHED();
inspectorValue = InspectorValue::null();
}
inspectorObject->setValue(String(name.characters(), name.length()), inspectorValue);
}
return inspectorObject;
}
ASSERT_NOT_REACHED();
return 0;
}
JSValue JSSQLTransactionSync::executeSql(ExecState* exec)
{
if (!exec->argumentCount()) {
setDOMException(exec, SYNTAX_ERR);
return jsUndefined();
}
String sqlStatement = ustringToString(exec->argument(0).toString(exec));
if (exec->hadException())
return jsUndefined();
// Now assemble the list of SQL arguments
Vector<SQLValue> sqlValues;
if (!exec->argument(1).isUndefinedOrNull()) {
JSObject* object = exec->argument(1).getObject();
if (!object) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return jsUndefined();
}
JSValue lengthValue = object->get(exec, exec->propertyNames().length);
if (exec->hadException())
return jsUndefined();
unsigned length = lengthValue.toUInt32(exec);
if (exec->hadException())
return jsUndefined();
for (unsigned i = 0 ; i < length; ++i) {
JSValue value = object->get(exec, i);
if (exec->hadException())
return jsUndefined();
if (value.isUndefinedOrNull())
sqlValues.append(SQLValue());
else if (value.isNumber())
sqlValues.append(value.uncheckedGetNumber());
else {
// Convert the argument to a string and append it
sqlValues.append(ustringToString(value.toString(exec)));
if (exec->hadException())
return jsUndefined();
}
}
}
ExceptionCode ec = 0;
JSValue result = toJS(exec, globalObject(), WTF::getPtr(m_impl->executeSQL(sqlStatement, sqlValues, ec)));
setDOMException(exec, ec);
return result;
}
static RefPtr<IDBKey> createIDBKeyFromValue(ExecState& exec, JSValue value, Vector<JSArray*>& stack)
{
VM& vm = exec.vm();
if (value.isNumber() && !std::isnan(value.toNumber(&exec)))
return IDBKey::createNumber(value.toNumber(&exec));
if (value.isString())
return IDBKey::createString(asString(value)->value(&exec));
if (value.inherits<DateInstance>(vm)) {
auto dateValue = valueToDate(exec, value);
if (!std::isnan(dateValue))
return IDBKey::createDate(dateValue);
}
if (value.isObject()) {
JSObject* object = asObject(value);
if (auto* array = jsDynamicCast<JSArray*>(vm, object)) {
size_t length = array->length();
if (stack.contains(array))
return nullptr;
if (stack.size() >= maximumDepth)
return nullptr;
stack.append(array);
Vector<RefPtr<IDBKey>> subkeys;
for (size_t i = 0; i < length; i++) {
JSValue item = array->getIndex(&exec, i);
RefPtr<IDBKey> subkey = createIDBKeyFromValue(exec, item, stack);
if (!subkey)
subkeys.append(IDBKey::createInvalid());
else
subkeys.append(subkey);
}
stack.removeLast();
return IDBKey::createArray(subkeys);
}
if (auto* arrayBuffer = jsDynamicCast<JSArrayBuffer*>(vm, value))
return IDBKey::createBinary(*arrayBuffer);
if (auto* arrayBufferView = jsDynamicCast<JSArrayBufferView*>(vm, value))
return IDBKey::createBinary(*arrayBufferView);
}
return nullptr;
}
void NPRuntimeObjectMap::convertJSValueToNPVariant(ExecState* exec, JSValue value, NPVariant& variant)
{
JSLock lock(SilenceAssertionsOnly);
VOID_TO_NPVARIANT(variant);
if (value.isNull()) {
NULL_TO_NPVARIANT(variant);
return;
}
if (value.isUndefined()) {
VOID_TO_NPVARIANT(variant);
return;
}
if (value.isBoolean()) {
BOOLEAN_TO_NPVARIANT(value.toBoolean(exec), variant);
return;
}
if (value.isNumber()) {
DOUBLE_TO_NPVARIANT(value.toNumber(exec), variant);
return;
}
if (value.isString()) {
CString utf8String = value.toString(exec).utf8();
// This should use NPN_MemAlloc, but we know that it uses malloc under the hood.
char* utf8Characters = static_cast<char*>(malloc(utf8String.length()));
memcpy(utf8Characters, utf8String.data(), utf8String.length());
STRINGN_TO_NPVARIANT(utf8Characters, utf8String.length(), variant);
return;
}
if (value.isObject()) {
NPObject* npObject = getOrCreateNPObject(asObject(value));
OBJECT_TO_NPVARIANT(npObject, variant);
return;
}
ASSERT_NOT_REACHED();
}
// Variant value must be released with NPReleaseVariantValue()
void convertValueToNPVariant(ExecState* exec, JSValue value, NPVariant* result)
{
JSLock lock(SilenceAssertionsOnly);
VOID_TO_NPVARIANT(*result);
if (value.isString()) {
UString ustring = value.toString(exec);
CString cstring = ustring.utf8();
NPString string = { (const NPUTF8*)cstring.data(), static_cast<uint32_t>(cstring.length()) };
NPN_InitializeVariantWithStringCopy(result, &string);
} else if (value.isNumber()) {
DOUBLE_TO_NPVARIANT(value.toNumber(exec), *result);
} else if (value.isBoolean()) {
BOOLEAN_TO_NPVARIANT(value.toBoolean(exec), *result);
} else if (value.isNull()) {
NULL_TO_NPVARIANT(*result);
} else if (value.isObject()) {
JSObject* object = asObject(value);
if (object->classInfo() == &CRuntimeObject::s_info) {
CRuntimeObject* runtimeObject = static_cast<CRuntimeObject*>(object);
CInstance* instance = runtimeObject->getInternalCInstance();
if (instance) {
NPObject* obj = instance->getObject();
_NPN_RetainObject(obj);
OBJECT_TO_NPVARIANT(obj, *result);
}
} else {
#ifdef ANDROID
RootObject* rootObject = findRootObject(exec->dynamicGlobalObject());
if (!rootObject)
rootObject = findRootObject(exec->lexicalGlobalObject());
#else
JSGlobalObject* globalObject = exec->dynamicGlobalObject();
RootObject* rootObject = findRootObject(globalObject);
#endif
if (rootObject) {
NPObject* npObject = _NPN_CreateScriptObject(0, object, rootObject);
OBJECT_TO_NPVARIANT(npObject, *result);
}
}
}
}
JSLR_API bool _cdecl JSTryConvertToNumbers(JSContextRef ctx, JSValueRef** value, size_t length, int** indices, double** result)
{
auto values = *value;
auto res = *result;
auto ind = *indices;
ExecState* exec = toJS(ctx);
for (unsigned int i = 0; i < length; i++)
{
auto ptr = values[ind[i]];
JSValueRef js_value = *&ptr;
JSValue jsValue = toJS(exec, js_value);
if (!jsValue.isNumber())
{
return false;
}
*&res[i] = jsValue.toNumber(exec);
}
return true;
}
