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1261 lines (1056 loc) · 41.6 KB
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/*
* Copyright (C) 2013-2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "APICast.h"
#import "DateInstance.h"
#import "Error.h"
#import "Exception.h"
#import "JavaScriptCore.h"
#import "JSContextInternal.h"
#import "JSObjectRefPrivate.h"
#import "JSVirtualMachineInternal.h"
#import "JSValueInternal.h"
#import "JSValuePrivate.h"
#import "JSWrapperMap.h"
#import "MarkedJSValueRefArray.h"
#import "ObjcRuntimeExtras.h"
#import "JSCInlines.h"
#import "JSCJSValue.h"
#import "Strong.h"
#import "StrongInlines.h"
#import <wtf/Expected.h>
#import <wtf/HashMap.h>
#import <wtf/HashSet.h>
#import <wtf/Lock.h>
#import <wtf/Vector.h>
#import <wtf/text/WTFString.h>
#import <wtf/text/StringHash.h>
#if ENABLE(REMOTE_INSPECTOR)
#import "CallFrame.h"
#import "JSGlobalObject.h"
#import "JSGlobalObjectInspectorController.h"
#endif
#if JSC_OBJC_API_ENABLED
NSString * const JSPropertyDescriptorWritableKey = @"writable";
NSString * const JSPropertyDescriptorEnumerableKey = @"enumerable";
NSString * const JSPropertyDescriptorConfigurableKey = @"configurable";
NSString * const JSPropertyDescriptorValueKey = @"value";
NSString * const JSPropertyDescriptorGetKey = @"get";
NSString * const JSPropertyDescriptorSetKey = @"set";
@implementation JSValue {
JSValueRef m_value;
}
- (void)dealloc
{
if (_context) {
JSValueUnprotect([_context JSGlobalContextRef], m_value);
[_context release];
_context = nil;
}
[super dealloc];
}
- (NSString *)description
{
if (id wrapped = tryUnwrapObjcObject([_context JSGlobalContextRef], m_value))
return [wrapped description];
return [self toString];
}
- (JSValueRef)JSValueRef
{
return m_value;
}
+ (JSValue *)valueWithObject:(id)value inContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:objectToValue(context, value) inContext:context];
}
+ (JSValue *)valueWithBool:(BOOL)value inContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSValueMakeBoolean([context JSGlobalContextRef], value) inContext:context];
}
+ (JSValue *)valueWithDouble:(double)value inContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSValueMakeNumber([context JSGlobalContextRef], value) inContext:context];
}
+ (JSValue *)valueWithInt32:(int32_t)value inContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSValueMakeNumber([context JSGlobalContextRef], value) inContext:context];
}
+ (JSValue *)valueWithUInt32:(uint32_t)value inContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSValueMakeNumber([context JSGlobalContextRef], value) inContext:context];
}
+ (JSValue *)valueWithNewObjectInContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSObjectMake([context JSGlobalContextRef], 0, 0) inContext:context];
}
+ (JSValue *)valueWithNewArrayInContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSObjectMakeArray([context JSGlobalContextRef], 0, NULL, 0) inContext:context];
}
+ (JSValue *)valueWithNewRegularExpressionFromPattern:(NSString *)pattern flags:(NSString *)flags inContext:(JSContext *)context
{
auto patternString = OpaqueJSString::tryCreate(pattern);
auto flagsString = OpaqueJSString::tryCreate(flags);
JSValueRef arguments[2] = { JSValueMakeString([context JSGlobalContextRef], patternString.get()), JSValueMakeString([context JSGlobalContextRef], flagsString.get()) };
return [JSValue valueWithJSValueRef:JSObjectMakeRegExp([context JSGlobalContextRef], 2, arguments, 0) inContext:context];
}
+ (JSValue *)valueWithNewErrorFromMessage:(NSString *)message inContext:(JSContext *)context
{
auto string = OpaqueJSString::tryCreate(message);
JSValueRef argument = JSValueMakeString([context JSGlobalContextRef], string.get());
return [JSValue valueWithJSValueRef:JSObjectMakeError([context JSGlobalContextRef], 1, &argument, 0) inContext:context];
}
+ (JSValue *)valueWithNullInContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSValueMakeNull([context JSGlobalContextRef]) inContext:context];
}
+ (JSValue *)valueWithUndefinedInContext:(JSContext *)context
{
return [JSValue valueWithJSValueRef:JSValueMakeUndefined([context JSGlobalContextRef]) inContext:context];
}
+ (JSValue *)valueWithNewSymbolFromDescription:(NSString *)description inContext:(JSContext *)context
{
auto string = OpaqueJSString::tryCreate(description);
return [JSValue valueWithJSValueRef:JSValueMakeSymbol([context JSGlobalContextRef], string.get()) inContext:context];
}
+ (JSValue *)valueWithNewPromiseInContext:(JSContext *)context fromExecutor:(void (^)(JSValue *, JSValue *))executor
{
JSObjectRef resolve;
JSObjectRef reject;
JSValueRef exception = nullptr;
JSObjectRef promise = JSObjectMakeDeferredPromise([context JSGlobalContextRef], &resolve, &reject, &exception);
if (exception) {
[context notifyException:exception];
return [JSValue valueWithUndefinedInContext:context];
}
JSValue *result = [JSValue valueWithJSValueRef:promise inContext:context];
JSValue *rejection = [JSValue valueWithJSValueRef:reject inContext:context];
CallbackData callbackData;
const size_t argumentCount = 2;
JSValueRef arguments[argumentCount];
arguments[0] = resolve;
arguments[1] = reject;
[context beginCallbackWithData:&callbackData calleeValue:nullptr thisValue:promise argumentCount:argumentCount arguments:arguments];
executor([JSValue valueWithJSValueRef:resolve inContext:context], rejection);
if (context.exception)
[rejection callWithArguments:@[context.exception]];
[context endCallbackWithData:&callbackData];
return result;
}
+ (JSValue *)valueWithNewPromiseResolvedWithResult:(id)result inContext:(JSContext *)context
{
return [JSValue valueWithNewPromiseInContext:context fromExecutor:^(JSValue *resolve, JSValue *) {
[resolve callWithArguments:@[result]];
}];
}
+ (JSValue *)valueWithNewPromiseRejectedWithReason:(id)reason inContext:(JSContext *)context
{
return [JSValue valueWithNewPromiseInContext:context fromExecutor:^(JSValue *, JSValue *reject) {
[reject callWithArguments:@[reason]];
}];
}
- (id)toObject
{
return valueToObject(_context, m_value);
}
- (id)toObjectOfClass:(Class)expectedClass
{
id result = [self toObject];
return [result isKindOfClass:expectedClass] ? result : nil;
}
- (BOOL)toBool
{
return JSValueToBoolean([_context JSGlobalContextRef], m_value);
}
- (double)toDouble
{
JSValueRef exception = 0;
double result = JSValueToNumber([_context JSGlobalContextRef], m_value, &exception);
if (exception) {
[_context notifyException:exception];
return std::numeric_limits<double>::quiet_NaN();
}
return result;
}
- (int32_t)toInt32
{
return JSC::toInt32([self toDouble]);
}
- (uint32_t)toUInt32
{
return JSC::toUInt32([self toDouble]);
}
- (NSNumber *)toNumber
{
JSValueRef exception = 0;
id result = valueToNumber([_context JSGlobalContextRef], m_value, &exception);
if (exception)
[_context notifyException:exception];
return result;
}
- (NSString *)toString
{
JSValueRef exception = 0;
id result = valueToString([_context JSGlobalContextRef], m_value, &exception);
if (exception)
[_context notifyException:exception];
return result;
}
- (NSDate *)toDate
{
JSValueRef exception = 0;
id result = valueToDate([_context JSGlobalContextRef], m_value, &exception);
if (exception)
[_context notifyException:exception];
return result;
}
- (NSArray *)toArray
{
JSValueRef exception = 0;
id result = valueToArray([_context JSGlobalContextRef], m_value, &exception);
if (exception)
[_context notifyException:exception];
return result;
}
- (NSDictionary *)toDictionary
{
JSValueRef exception = 0;
id result = valueToDictionary([_context JSGlobalContextRef], m_value, &exception);
if (exception)
[_context notifyException:exception];
return result;
}
template<typename Result, typename NSStringFunction, typename JSValueFunction, typename... Types>
inline Expected<Result, JSValueRef> performPropertyOperation(NSStringFunction stringFunction, JSValueFunction jsFunction, JSValue* value, id propertyKey, Types... arguments)
{
JSContext* context = [value context];
JSValueRef exception = nullptr;
JSObjectRef object = JSValueToObject([context JSGlobalContextRef], [value JSValueRef], &exception);
if (exception)
return Unexpected<JSValueRef>(exception);
Result result;
// If it's a NSString already, reduce indirection and just pass the NSString.
if ([propertyKey isKindOfClass:[NSString class]]) {
auto name = OpaqueJSString::tryCreate((NSString *)propertyKey);
result = stringFunction([context JSGlobalContextRef], object, name.get(), arguments..., &exception);
} else
result = jsFunction([context JSGlobalContextRef], object, [[JSValue valueWithObject:propertyKey inContext:context] JSValueRef], arguments..., &exception);
return Expected<Result, JSValueRef>(result);
}
- (JSValue *)valueForProperty:(id)key
{
auto result = performPropertyOperation<JSValueRef>(JSObjectGetProperty, JSObjectGetPropertyForKey, self, key);
if (!result)
return [_context valueFromNotifyException:result.error()];
return [JSValue valueWithJSValueRef:result.value() inContext:_context];
}
- (void)setValue:(id)value forProperty:(JSValueProperty)key
{
// We need Unit business because void can't be assigned to in performPropertyOperation and I don't want to duplicate the code...
using Unit = std::tuple<>;
auto stringSetProperty = [] (auto... args) -> Unit {
JSObjectSetProperty(args...);
return { };
};
auto jsValueSetProperty = [] (auto... args) -> Unit {
JSObjectSetPropertyForKey(args...);
return { };
};
auto result = performPropertyOperation<Unit>(stringSetProperty, jsValueSetProperty, self, key, objectToValue(_context, value), kJSPropertyAttributeNone);
if (!result) {
[_context notifyException:result.error()];
return;
}
}
- (BOOL)deleteProperty:(JSValueProperty)key
{
Expected<BOOL, JSValueRef> result = performPropertyOperation<BOOL>(JSObjectDeleteProperty, JSObjectDeletePropertyForKey, self, key);
if (!result)
return [_context boolFromNotifyException:result.error()];
return result.value();
}
- (BOOL)hasProperty:(JSValueProperty)key
{
// The C-api doesn't return an exception value for the string version of has property.
auto stringHasProperty = [] (JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef*) -> BOOL {
return JSObjectHasProperty(ctx, object, propertyName);
};
Expected<BOOL, JSValueRef> result = performPropertyOperation<BOOL>(stringHasProperty, JSObjectHasPropertyForKey, self, key);
if (!result)
return [_context boolFromNotifyException:result.error()];
return result.value();
}
- (void)defineProperty:(JSValueProperty)key descriptor:(id)descriptor
{
[[_context globalObject][@"Object"] invokeMethod:@"defineProperty" withArguments:@[ self, key, descriptor ]];
}
- (JSValue *)valueAtIndex:(NSUInteger)index
{
// Properties that are higher than an unsigned value can hold are converted to a double then inserted as a normal property.
// Indices that are bigger than the max allowed index size (UINT_MAX - 1) will be handled internally in get().
if (index != (unsigned)index)
return [self valueForProperty:[[JSValue valueWithDouble:index inContext:_context] toString]];
JSValueRef exception = 0;
JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception);
if (exception)
return [_context valueFromNotifyException:exception];
JSValueRef result = JSObjectGetPropertyAtIndex([_context JSGlobalContextRef], object, (unsigned)index, &exception);
if (exception)
return [_context valueFromNotifyException:exception];
return [JSValue valueWithJSValueRef:result inContext:_context];
}
- (void)setValue:(id)value atIndex:(NSUInteger)index
{
// Properties that are higher than an unsigned value can hold are converted to a double, then inserted as a normal property.
// Indices that are bigger than the max allowed index size (UINT_MAX - 1) will be handled internally in putByIndex().
if (index != (unsigned)index)
return [self setValue:value forProperty:[[JSValue valueWithDouble:index inContext:_context] toString]];
JSValueRef exception = 0;
JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception);
if (exception) {
[_context notifyException:exception];
return;
}
JSObjectSetPropertyAtIndex([_context JSGlobalContextRef], object, (unsigned)index, objectToValue(_context, value), &exception);
if (exception) {
[_context notifyException:exception];
return;
}
}
- (BOOL)isUndefined
{
#if !CPU(ADDRESS64)
return JSValueIsUndefined([_context JSGlobalContextRef], m_value);
#else
return toJS(m_value).isUndefined();
#endif
}
- (BOOL)isNull
{
#if !CPU(ADDRESS64)
return JSValueIsNull([_context JSGlobalContextRef], m_value);
#else
return toJS(m_value).isNull();
#endif
}
- (BOOL)isBoolean
{
#if !CPU(ADDRESS64)
return JSValueIsBoolean([_context JSGlobalContextRef], m_value);
#else
return toJS(m_value).isBoolean();
#endif
}
- (BOOL)isNumber
{
#if !CPU(ADDRESS64)
return JSValueIsNumber([_context JSGlobalContextRef], m_value);
#else
return toJS(m_value).isNumber();
#endif
}
- (BOOL)isString
{
#if !CPU(ADDRESS64)
return JSValueIsString([_context JSGlobalContextRef], m_value);
#else
return toJS(m_value).isString();
#endif
}
- (BOOL)isObject
{
#if !CPU(ADDRESS64)
return JSValueIsObject([_context JSGlobalContextRef], m_value);
#else
return toJS(m_value).isObject();
#endif
}
- (BOOL)isSymbol
{
#if !CPU(ADDRESS64)
return JSValueIsSymbol([_context JSGlobalContextRef], m_value);
#else
return toJS(m_value).isSymbol();
#endif
}
- (BOOL)isArray
{
return JSValueIsArray([_context JSGlobalContextRef], m_value);
}
- (BOOL)isDate
{
return JSValueIsDate([_context JSGlobalContextRef], m_value);
}
- (BOOL)isEqualToObject:(id)value
{
return JSValueIsStrictEqual([_context JSGlobalContextRef], m_value, objectToValue(_context, value));
}
- (BOOL)isEqualWithTypeCoercionToObject:(id)value
{
JSValueRef exception = 0;
BOOL result = JSValueIsEqual([_context JSGlobalContextRef], m_value, objectToValue(_context, value), &exception);
if (exception)
return [_context boolFromNotifyException:exception];
return result;
}
- (BOOL)isInstanceOf:(id)value
{
JSValueRef exception = 0;
JSObjectRef constructor = JSValueToObject([_context JSGlobalContextRef], objectToValue(_context, value), &exception);
if (exception)
return [_context boolFromNotifyException:exception];
BOOL result = JSValueIsInstanceOfConstructor([_context JSGlobalContextRef], m_value, constructor, &exception);
if (exception)
return [_context boolFromNotifyException:exception];
return result;
}
- (JSValue *)callWithArguments:(NSArray *)argumentArray
{
JSC::JSGlobalObject* globalObject = toJS([_context JSGlobalContextRef]);
JSC::VM& vm = globalObject->vm();
JSC::JSLockHolder locker(vm);
NSUInteger argumentCount = [argumentArray count];
JSC::MarkedJSValueRefArray arguments([_context JSGlobalContextRef], argumentCount);
for (unsigned i = 0; i < argumentCount; ++i)
arguments[i] = objectToValue(_context, [argumentArray objectAtIndex:i]);
JSValueRef exception = 0;
JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception);
if (exception)
return [_context valueFromNotifyException:exception];
JSValueRef result = JSObjectCallAsFunction([_context JSGlobalContextRef], object, 0, argumentCount, arguments.data(), &exception);
if (exception)
return [_context valueFromNotifyException:exception];
return [JSValue valueWithJSValueRef:result inContext:_context];
}
- (JSValue *)constructWithArguments:(NSArray *)argumentArray
{
JSC::JSGlobalObject* globalObject = toJS([_context JSGlobalContextRef]);
JSC::VM& vm = globalObject->vm();
JSC::JSLockHolder locker(vm);
NSUInteger argumentCount = [argumentArray count];
JSC::MarkedJSValueRefArray arguments([_context JSGlobalContextRef], argumentCount);
for (unsigned i = 0; i < argumentCount; ++i)
arguments[i] = objectToValue(_context, [argumentArray objectAtIndex:i]);
JSValueRef exception = 0;
JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception);
if (exception)
return [_context valueFromNotifyException:exception];
JSObjectRef result = JSObjectCallAsConstructor([_context JSGlobalContextRef], object, argumentCount, arguments.data(), &exception);
if (exception)
return [_context valueFromNotifyException:exception];
return [JSValue valueWithJSValueRef:result inContext:_context];
}
- (JSValue *)invokeMethod:(NSString *)method withArguments:(NSArray *)arguments
{
JSC::JSGlobalObject* globalObject = toJS([_context JSGlobalContextRef]);
JSC::VM& vm = globalObject->vm();
JSC::JSLockHolder locker(vm);
NSUInteger argumentCount = [arguments count];
JSC::MarkedJSValueRefArray argumentArray([_context JSGlobalContextRef], argumentCount);
for (unsigned i = 0; i < argumentCount; ++i)
argumentArray[i] = objectToValue(_context, [arguments objectAtIndex:i]);
JSValueRef exception = 0;
JSObjectRef thisObject = JSValueToObject([_context JSGlobalContextRef], m_value, &exception);
if (exception)
return [_context valueFromNotifyException:exception];
auto name = OpaqueJSString::tryCreate(method);
JSValueRef function = JSObjectGetProperty([_context JSGlobalContextRef], thisObject, name.get(), &exception);
if (exception)
return [_context valueFromNotifyException:exception];
JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], function, &exception);
if (exception)
return [_context valueFromNotifyException:exception];
JSValueRef result = JSObjectCallAsFunction([_context JSGlobalContextRef], object, thisObject, argumentCount, argumentArray.data(), &exception);
if (exception)
return [_context valueFromNotifyException:exception];
return [JSValue valueWithJSValueRef:result inContext:_context];
}
@end
@implementation JSValue(StructSupport)
- (CGPoint)toPoint
{
return (CGPoint){
static_cast<CGFloat>([self[@"x"] toDouble]),
static_cast<CGFloat>([self[@"y"] toDouble])
};
}
- (NSRange)toRange
{
return (NSRange){
[[self[@"location"] toNumber] unsignedIntegerValue],
[[self[@"length"] toNumber] unsignedIntegerValue]
};
}
- (CGRect)toRect
{
return (CGRect){
[self toPoint],
[self toSize]
};
}
- (CGSize)toSize
{
return (CGSize){
static_cast<CGFloat>([self[@"width"] toDouble]),
static_cast<CGFloat>([self[@"height"] toDouble])
};
}
+ (JSValue *)valueWithPoint:(CGPoint)point inContext:(JSContext *)context
{
return [JSValue valueWithObject:@{
@"x":@(point.x),
@"y":@(point.y)
} inContext:context];
}
+ (JSValue *)valueWithRange:(NSRange)range inContext:(JSContext *)context
{
return [JSValue valueWithObject:@{
@"location":@(range.location),
@"length":@(range.length)
} inContext:context];
}
+ (JSValue *)valueWithRect:(CGRect)rect inContext:(JSContext *)context
{
return [JSValue valueWithObject:@{
@"x":@(rect.origin.x),
@"y":@(rect.origin.y),
@"width":@(rect.size.width),
@"height":@(rect.size.height)
} inContext:context];
}
+ (JSValue *)valueWithSize:(CGSize)size inContext:(JSContext *)context
{
return [JSValue valueWithObject:@{
@"width":@(size.width),
@"height":@(size.height)
} inContext:context];
}
@end
@implementation JSValue(SubscriptSupport)
- (JSValue *)objectForKeyedSubscript:(id)key
{
return [self valueForProperty:key];
}
- (JSValue *)objectAtIndexedSubscript:(NSUInteger)index
{
return [self valueAtIndex:index];
}
- (void)setObject:(id)object forKeyedSubscript:(id)key
{
[self setValue:object forProperty:key];
}
- (void)setObject:(id)object atIndexedSubscript:(NSUInteger)index
{
[self setValue:object atIndex:index];
}
@end
inline bool isDate(JSObjectRef object, JSGlobalContextRef context)
{
JSC::JSLockHolder locker(toJS(context));
return toJS(object)->inherits<JSC::DateInstance>();
}
inline bool isArray(JSObjectRef object, JSGlobalContextRef context)
{
JSC::JSLockHolder locker(toJS(context));
return toJS(object)->inherits<JSC::JSArray>();
}
@implementation JSValue(Internal)
enum ConversionType {
ContainerNone,
ContainerArray,
ContainerDictionary
};
class JSContainerConvertor {
public:
struct Task {
JSValueRef js;
id objc;
ConversionType type;
};
JSContainerConvertor(JSGlobalContextRef context)
: m_context(context)
{
}
id convert(JSValueRef property);
void add(Task);
Task take();
bool isWorkListEmpty() const { return !m_worklist.size(); }
private:
JSGlobalContextRef m_context;
HashMap<JSValueRef, __unsafe_unretained id> m_objectMap;
Vector<Task> m_worklist;
Vector<JSC::Strong<JSC::Unknown>> m_jsValues;
};
inline id JSContainerConvertor::convert(JSValueRef value)
{
auto iter = m_objectMap.find(value);
if (iter != m_objectMap.end())
return iter->value;
Task result = valueToObjectWithoutCopy(m_context, value);
if (result.js)
add(result);
return result.objc;
}
void JSContainerConvertor::add(Task task)
{
JSC::JSGlobalObject* globalObject = toJS(m_context);
m_jsValues.append(JSC::Strong<JSC::Unknown>(globalObject->vm(), toJSForGC(globalObject, task.js)));
m_objectMap.add(task.js, task.objc);
if (task.type != ContainerNone)
m_worklist.append(task);
}
JSContainerConvertor::Task JSContainerConvertor::take()
{
ASSERT(!isWorkListEmpty());
Task last = m_worklist.last();
m_worklist.removeLast();
return last;
}
#if ENABLE(REMOTE_INSPECTOR)
static void reportExceptionToInspector(JSGlobalContextRef context, JSC::JSValue exceptionValue)
{
JSC::JSGlobalObject* globalObject = toJS(context);
JSC::VM& vm = globalObject->vm();
JSC::Exception* exception = JSC::Exception::create(vm, exceptionValue);
globalObject->inspectorController().reportAPIException(globalObject, exception);
}
#endif
static JSContainerConvertor::Task valueToObjectWithoutCopy(JSGlobalContextRef context, JSValueRef value)
{
if (!JSValueIsObject(context, value)) {
id primitive;
if (JSValueIsBoolean(context, value))
primitive = JSValueToBoolean(context, value) ? @YES : @NO;
else if (JSValueIsNumber(context, value)) {
// Normalize the number, so it will unique correctly in the hash map -
// it's nicer not to leak this internal implementation detail!
value = JSValueMakeNumber(context, JSValueToNumber(context, value, 0));
primitive = @(JSValueToNumber(context, value, 0));
} else if (JSValueIsString(context, value)) {
// Would be nice to unique strings, too.
auto jsstring = adoptRef(JSValueToStringCopy(context, value, 0));
primitive = adoptCF(JSStringCopyCFString(kCFAllocatorDefault, jsstring.get())).bridgingAutorelease();
} else if (JSValueIsNull(context, value))
primitive = [NSNull null];
else {
ASSERT(JSValueIsUndefined(context, value));
primitive = nil;
}
return { value, primitive, ContainerNone };
}
JSObjectRef object = JSValueToObject(context, value, 0);
if (id wrapped = tryUnwrapObjcObject(context, object))
return { object, wrapped, ContainerNone };
if (isDate(object, context))
return { object, [NSDate dateWithTimeIntervalSince1970:JSValueToNumber(context, object, 0) / 1000.0], ContainerNone };
if (isArray(object, context))
return { object, [NSMutableArray array], ContainerArray };
return { object, [NSMutableDictionary dictionary], ContainerDictionary };
}
static id containerValueToObject(JSGlobalContextRef context, JSContainerConvertor::Task task)
{
ASSERT(task.type != ContainerNone);
JSC::JSLockHolder locker(toJS(context));
JSContainerConvertor convertor(context);
convertor.add(task);
ASSERT(!convertor.isWorkListEmpty());
do {
JSContainerConvertor::Task current = convertor.take();
ASSERT(JSValueIsObject(context, current.js));
JSObjectRef js = JSValueToObject(context, current.js, 0);
if (current.type == ContainerArray) {
ASSERT([current.objc isKindOfClass:[NSMutableArray class]]);
NSMutableArray *array = (NSMutableArray *)current.objc;
auto lengthString = OpaqueJSString::tryCreate("length"_s);
unsigned length = JSC::toUInt32(JSValueToNumber(context, JSObjectGetProperty(context, js, lengthString.get(), 0), 0));
for (unsigned i = 0; i < length; ++i) {
id objc = convertor.convert(JSObjectGetPropertyAtIndex(context, js, i, 0));
[array addObject:objc ? objc : [NSNull null]];
}
} else {
ASSERT([current.objc isKindOfClass:[NSMutableDictionary class]]);
NSMutableDictionary *dictionary = (NSMutableDictionary *)current.objc;
JSC::JSLockHolder locker(toJS(context));
JSPropertyNameArrayRef propertyNameArray = JSObjectCopyPropertyNames(context, js);
size_t length = JSPropertyNameArrayGetCount(propertyNameArray);
for (size_t i = 0; i < length; ++i) {
JSStringRef propertyName = JSPropertyNameArrayGetNameAtIndex(propertyNameArray, i);
if (id objc = convertor.convert(JSObjectGetProperty(context, js, propertyName, 0)))
dictionary[(__bridge NSString *)adoptCF(JSStringCopyCFString(kCFAllocatorDefault, propertyName)).get()] = objc;
}
JSPropertyNameArrayRelease(propertyNameArray);
}
} while (!convertor.isWorkListEmpty());
return task.objc;
}
id valueToObject(JSContext *context, JSValueRef value)
{
JSContainerConvertor::Task result = valueToObjectWithoutCopy([context JSGlobalContextRef], value);
if (result.type == ContainerNone)
return result.objc;
return containerValueToObject([context JSGlobalContextRef], result);
}
id valueToNumber(JSGlobalContextRef context, JSValueRef value, JSValueRef* exception)
{
ASSERT(!*exception);
if (id wrapped = tryUnwrapObjcObject(context, value)) {
if ([wrapped isKindOfClass:[NSNumber class]])
return wrapped;
}
if (JSValueIsBoolean(context, value))
return JSValueToBoolean(context, value) ? @YES : @NO;
double result = JSValueToNumber(context, value, exception);
return @(*exception ? std::numeric_limits<double>::quiet_NaN() : result);
}
id valueToString(JSGlobalContextRef context, JSValueRef value, JSValueRef* exception)
{
ASSERT(!*exception);
if (id wrapped = tryUnwrapObjcObject(context, value)) {
if ([wrapped isKindOfClass:[NSString class]])
return wrapped;
}
auto jsstring = adoptRef(JSValueToStringCopy(context, value, exception));
if (*exception) {
ASSERT(!jsstring);
return nil;
}
return adoptCF(JSStringCopyCFString(kCFAllocatorDefault, jsstring.get())).bridgingAutorelease();
}
id valueToDate(JSGlobalContextRef context, JSValueRef value, JSValueRef* exception)
{
ASSERT(!*exception);
if (id wrapped = tryUnwrapObjcObject(context, value)) {
if ([wrapped isKindOfClass:[NSDate class]])
return wrapped;
}
double result = JSValueToNumber(context, value, exception) / 1000.0;
return *exception ? nil : [NSDate dateWithTimeIntervalSince1970:result];
}
id valueToArray(JSGlobalContextRef context, JSValueRef value, JSValueRef* exception)
{
ASSERT(!*exception);
if (id wrapped = tryUnwrapObjcObject(context, value)) {
if ([wrapped isKindOfClass:[NSArray class]])
return wrapped;
}
if (JSValueIsObject(context, value))
return containerValueToObject(context, { value, [NSMutableArray array], ContainerArray});
JSC::JSLockHolder locker(toJS(context));
if (!(JSValueIsNull(context, value) || JSValueIsUndefined(context, value))) {
JSC::JSObject* exceptionObject = JSC::createTypeError(toJS(context), "Cannot convert primitive to NSArray"_s);
*exception = toRef(exceptionObject);
#if ENABLE(REMOTE_INSPECTOR)
reportExceptionToInspector(context, exceptionObject);
#endif
}
return nil;
}
id valueToDictionary(JSGlobalContextRef context, JSValueRef value, JSValueRef* exception)
{
ASSERT(!*exception);
if (id wrapped = tryUnwrapObjcObject(context, value)) {
if ([wrapped isKindOfClass:[NSDictionary class]])
return wrapped;
}
if (JSValueIsObject(context, value))
return containerValueToObject(context, { value, [NSMutableDictionary dictionary], ContainerDictionary});
JSC::JSLockHolder locker(toJS(context));
if (!(JSValueIsNull(context, value) || JSValueIsUndefined(context, value))) {
JSC::JSObject* exceptionObject = JSC::createTypeError(toJS(context), "Cannot convert primitive to NSDictionary"_s);
*exception = toRef(exceptionObject);
#if ENABLE(REMOTE_INSPECTOR)
reportExceptionToInspector(context, exceptionObject);
#endif
}
return nil;
}
class ObjcContainerConvertor {
public:
struct Task {
id objc;
JSValueRef js;
ConversionType type;
};
ObjcContainerConvertor(JSContext *context)
: m_context(context)
{
}
JSValueRef convert(id object);
void add(Task);
Task take();
bool isWorkListEmpty() const { return !m_worklist.size(); }
private:
JSContext *m_context;
HashMap<__unsafe_unretained id, JSValueRef> m_objectMap;
Vector<Task> m_worklist;
Vector<JSC::Strong<JSC::Unknown>> m_jsValues;
};
JSValueRef ObjcContainerConvertor::convert(id object)
{
ASSERT(object);
auto it = m_objectMap.find(object);
if (it != m_objectMap.end())
return it->value;
ObjcContainerConvertor::Task task = objectToValueWithoutCopy(m_context, object);
add(task);
return task.js;
}
void ObjcContainerConvertor::add(ObjcContainerConvertor::Task task)
{
JSC::JSGlobalObject* globalObject = toJS(m_context.JSGlobalContextRef);
m_jsValues.append(JSC::Strong<JSC::Unknown>(globalObject->vm(), toJSForGC(globalObject, task.js)));
m_objectMap.add(task.objc, task.js);
if (task.type != ContainerNone)
m_worklist.append(task);
}
ObjcContainerConvertor::Task ObjcContainerConvertor::take()
{
ASSERT(!isWorkListEmpty());
Task last = m_worklist.last();
m_worklist.removeLast();
return last;
}
inline bool isNSBoolean(id object)
{
ASSERT([@YES class] == [@NO class]);
ASSERT([@YES class] != [NSNumber class]);