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Diffstat (limited to 'Source/JavaScriptCore/API/JSValue.mm')
| -rw-r--r-- | Source/JavaScriptCore/API/JSValue.mm | 1131 |
1 files changed, 0 insertions, 1131 deletions
diff --git a/Source/JavaScriptCore/API/JSValue.mm b/Source/JavaScriptCore/API/JSValue.mm deleted file mode 100644 index e708cc674..000000000 --- a/Source/JavaScriptCore/API/JSValue.mm +++ /dev/null @@ -1,1131 +0,0 @@ -/* - * Copyright (C) 2013 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. - */ - -#include "config.h" - -#import "APICast.h" -#import "APIShims.h" -#import "DateInstance.h" -#import "Error.h" -#import "JavaScriptCore.h" -#import "JSContextInternal.h" -#import "JSVirtualMachineInternal.h" -#import "JSValueInternal.h" -#import "JSWrapperMap.h" -#import "ObjcRuntimeExtras.h" -#import "Operations.h" -#import "JSCJSValue.h" -#import <wtf/HashMap.h> -#import <wtf/HashSet.h> -#import <wtf/Vector.h> -#import <wtf/TCSpinLock.h> -#import <wtf/text/WTFString.h> -#import <wtf/text/StringHash.h> - -#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; -} - -- (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 -{ - JSStringRef patternString = JSStringCreateWithCFString((CFStringRef)pattern); - JSStringRef flagsString = JSStringCreateWithCFString((CFStringRef)flags); - JSValueRef arguments[2] = { JSValueMakeString([context JSGlobalContextRef], patternString), JSValueMakeString([context JSGlobalContextRef], flagsString) }; - JSStringRelease(patternString); - JSStringRelease(flagsString); - - return [JSValue valueWithJSValueRef:JSObjectMakeRegExp([context JSGlobalContextRef], 2, arguments, 0) inContext:context]; -} - -+ (JSValue *)valueWithNewErrorFromMessage:(NSString *)message inContext:(JSContext *)context -{ - JSStringRef string = JSStringCreateWithCFString((CFStringRef)message); - JSValueRef argument = JSValueMakeString([context JSGlobalContextRef], string); - JSStringRelease(string); - - 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]; -} - -- (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; -} - -- (JSValue *)valueForProperty:(NSString *)propertyName -{ - JSValueRef exception = 0; - JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception); - if (exception) - return [_context valueFromNotifyException:exception]; - - JSStringRef name = JSStringCreateWithCFString((CFStringRef)propertyName); - JSValueRef result = JSObjectGetProperty([_context JSGlobalContextRef], object, name, &exception); - JSStringRelease(name); - if (exception) - return [_context valueFromNotifyException:exception]; - - return [JSValue valueWithJSValueRef:result inContext:_context]; -} - -- (void)setValue:(id)value forProperty:(NSString *)propertyName -{ - JSValueRef exception = 0; - JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception); - if (exception) { - [_context notifyException:exception]; - return; - } - - JSStringRef name = JSStringCreateWithCFString((CFStringRef)propertyName); - JSObjectSetProperty([_context JSGlobalContextRef], object, name, objectToValue(_context, value), 0, &exception); - JSStringRelease(name); - if (exception) { - [_context notifyException:exception]; - return; - } -} - -- (BOOL)deleteProperty:(NSString *)propertyName -{ - JSValueRef exception = 0; - JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception); - if (exception) - return [_context boolFromNotifyException:exception]; - - JSStringRef name = JSStringCreateWithCFString((CFStringRef)propertyName); - BOOL result = JSObjectDeleteProperty([_context JSGlobalContextRef], object, name, &exception); - JSStringRelease(name); - if (exception) - return [_context boolFromNotifyException:exception]; - - return result; -} - -- (BOOL)hasProperty:(NSString *)propertyName -{ - JSValueRef exception = 0; - JSObjectRef object = JSValueToObject([_context JSGlobalContextRef], m_value, &exception); - if (exception) - return [_context boolFromNotifyException:exception]; - - JSStringRef name = JSStringCreateWithCFString((CFStringRef)propertyName); - BOOL result = JSObjectHasProperty([_context JSGlobalContextRef], object, name); - JSStringRelease(name); - return result; -} - -- (void)defineProperty:(NSString *)property descriptor:(id)descriptor -{ - [[_context globalObject][@"Object"] invokeMethod:@"defineProperty" withArguments:@[ self, property, 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 -{ - return JSValueIsUndefined([_context JSGlobalContextRef], m_value); -} - -- (BOOL)isNull -{ - return JSValueIsNull([_context JSGlobalContextRef], m_value); -} - -- (BOOL)isBoolean -{ - return JSValueIsBoolean([_context JSGlobalContextRef], m_value); -} - -- (BOOL)isNumber -{ - return JSValueIsNumber([_context JSGlobalContextRef], m_value); -} - -- (BOOL)isString -{ - return JSValueIsString([_context JSGlobalContextRef], m_value); -} - -- (BOOL)isObject -{ - return JSValueIsObject([_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 -{ - NSUInteger argumentCount = [argumentArray count]; - JSValueRef arguments[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, &exception); - if (exception) - return [_context valueFromNotifyException:exception]; - - return [JSValue valueWithJSValueRef:result inContext:_context]; -} - -- (JSValue *)constructWithArguments:(NSArray *)argumentArray -{ - NSUInteger argumentCount = [argumentArray count]; - JSValueRef arguments[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, &exception); - if (exception) - return [_context valueFromNotifyException:exception]; - - return [JSValue valueWithJSValueRef:result inContext:_context]; -} - -- (JSValue *)invokeMethod:(NSString *)method withArguments:(NSArray *)arguments -{ - NSUInteger argumentCount = [arguments count]; - JSValueRef argumentArray[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]; - - JSStringRef name = JSStringCreateWithCFString((CFStringRef)method); - JSValueRef function = JSObjectGetProperty([_context JSGlobalContextRef], thisObject, name, &exception); - JSStringRelease(name); - 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, &exception); - if (exception) - return [_context valueFromNotifyException:exception]; - - return [JSValue valueWithJSValueRef:result inContext:_context]; -} - -@end - -@implementation JSValue(StructSupport) - -- (CGPoint)toPoint -{ - return (CGPoint){ - [self[@"x"] toDouble], - [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){ - [self[@"width"] toDouble], - [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 -{ - if (![key isKindOfClass:[NSString class]]) { - key = [[JSValue valueWithObject:key inContext:_context] toString]; - if (!key) - return [JSValue valueWithUndefinedInContext:_context]; - } - - return [self valueForProperty:(NSString *)key]; -} - -- (JSValue *)objectAtIndexedSubscript:(NSUInteger)index -{ - return [self valueAtIndex:index]; -} - -- (void)setObject:(id)object forKeyedSubscript:(NSObject <NSCopying> *)key -{ - if (![key isKindOfClass:[NSString class]]) { - key = [[JSValue valueWithObject:key inContext:_context] toString]; - if (!key) - return; - } - - [self setValue:object forProperty:(NSString *)key]; -} - -- (void)setObject:(id)object atIndexedSubscript:(NSUInteger)index -{ - [self setValue:object atIndex:index]; -} - -@end - -inline bool isDate(JSObjectRef object, JSGlobalContextRef context) -{ - JSC::APIEntryShim entryShim(toJS(context)); - return toJS(object)->inherits(&JSC::DateInstance::s_info); -} - -inline bool isArray(JSObjectRef object, JSGlobalContextRef context) -{ - JSC::APIEntryShim entryShim(toJS(context)); - return toJS(object)->inherits(&JSC::JSArray::s_info); -} - -@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, id> m_objectMap; - Vector<Task> m_worklist; -}; - -inline id JSContainerConvertor::convert(JSValueRef value) -{ - HashMap<JSValueRef, id>::iterator 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) -{ - 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; -} - -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 = [NSNumber numberWithDouble:JSValueToNumber(context, value, 0)]; - } else if (JSValueIsString(context, value)) { - // Would be nice to unique strings, too. - JSStringRef jsstring = JSValueToStringCopy(context, value, 0); - NSString * stringNS = (NSString *)JSStringCopyCFString(kCFAllocatorDefault, jsstring); - JSStringRelease(jsstring); - primitive = [stringNS autorelease]; - } else if (JSValueIsNull(context, value)) - primitive = [NSNull null]; - else { - ASSERT(JSValueIsUndefined(context, value)); - primitive = nil; - } - return (JSContainerConvertor::Task){ value, primitive, ContainerNone }; - } - - JSObjectRef object = JSValueToObject(context, value, 0); - - if (id wrapped = tryUnwrapObjcObject(context, object)) - return (JSContainerConvertor::Task){ object, wrapped, ContainerNone }; - - if (isDate(object, context)) - return (JSContainerConvertor::Task){ object, [NSDate dateWithTimeIntervalSince1970:JSValueToNumber(context, object, 0)], ContainerNone }; - - if (isArray(object, context)) - return (JSContainerConvertor::Task){ object, [NSMutableArray array], ContainerArray }; - - return (JSContainerConvertor::Task){ object, [NSMutableDictionary dictionary], ContainerDictionary }; -} - -static id containerValueToObject(JSGlobalContextRef context, JSContainerConvertor::Task task) -{ - ASSERT(task.type != ContainerNone); - 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; - - JSStringRef lengthString = JSStringCreateWithUTF8CString("length"); - unsigned length = JSC::toUInt32(JSValueToNumber(context, JSObjectGetProperty(context, js, lengthString, 0), 0)); - JSStringRelease(lengthString); - - 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; - - 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[[(NSString *)JSStringCopyCFString(kCFAllocatorDefault, propertyName) autorelease]] = 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 [NSNumber numberWithDouble:*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; - } - - JSStringRef jsstring = JSValueToStringCopy(context, value, exception); - if (*exception) { - ASSERT(!jsstring); - return nil; - } - - NSString *stringNS = [(NSString *)JSStringCopyCFString(kCFAllocatorDefault, jsstring) autorelease]; - JSStringRelease(jsstring); - return stringNS; -} - -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); - 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, (JSContainerConvertor::Task){ value, [NSMutableArray array], ContainerArray}); - - if (!(JSValueIsNull(context, value) || JSValueIsUndefined(context, value))) - *exception = toRef(JSC::createTypeError(toJS(context), "Cannot convert primitive to NSArray")); - 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, (JSContainerConvertor::Task){ value, [NSMutableDictionary dictionary], ContainerDictionary}); - - if (!(JSValueIsNull(context, value) || JSValueIsUndefined(context, value))) - *exception = toRef(JSC::createTypeError(toJS(context), "Cannot convert primitive to NSDictionary")); - 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<id, JSValueRef> m_objectMap; - Vector<Task> m_worklist; -}; - -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) -{ - 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]); - ASSERT([[@YES class] isSubclassOfClass:[NSNumber class]]); - return [object isKindOfClass:[@YES class]]; -} - -static ObjcContainerConvertor::Task objectToValueWithoutCopy(JSContext *context, id object) -{ - JSGlobalContextRef contextRef = [context JSGlobalContextRef]; - - if (!object) - return (ObjcContainerConvertor::Task){ object, JSValueMakeUndefined(contextRef), ContainerNone }; - - if (!class_conformsToProtocol(object_getClass(object), getJSExportProtocol())) { - if ([object isKindOfClass:[NSArray class]]) - return (ObjcContainerConvertor::Task){ object, JSObjectMakeArray(contextRef, 0, NULL, 0), ContainerArray }; - - if ([object isKindOfClass:[NSDictionary class]]) - return (ObjcContainerConvertor::Task){ object, JSObjectMake(contextRef, 0, 0), ContainerDictionary }; - - if ([object isKindOfClass:[NSNull class]]) - return (ObjcContainerConvertor::Task){ object, JSValueMakeNull(contextRef), ContainerNone }; - - if ([object isKindOfClass:[JSValue class]]) - return (ObjcContainerConvertor::Task){ object, ((JSValue *)object)->m_value, ContainerNone }; - - if ([object isKindOfClass:[NSString class]]) { - JSStringRef string = JSStringCreateWithCFString((CFStringRef)object); - JSValueRef js = JSValueMakeString(contextRef, string); - JSStringRelease(string); - return (ObjcContainerConvertor::Task){ object, js, ContainerNone }; - } - - if ([object isKindOfClass:[NSNumber class]]) { - if (isNSBoolean(object)) - return (ObjcContainerConvertor::Task){ object, JSValueMakeBoolean(contextRef, [object boolValue]), ContainerNone }; - return (ObjcContainerConvertor::Task){ object, JSValueMakeNumber(contextRef, [object doubleValue]), ContainerNone }; - } - - if ([object isKindOfClass:[NSDate class]]) { - JSValueRef argument = JSValueMakeNumber(contextRef, [object timeIntervalSince1970]); - JSObjectRef result = JSObjectMakeDate(contextRef, 1, &argument, 0); - return (ObjcContainerConvertor::Task){ object, result, ContainerNone }; - } - - if ([object isKindOfClass:[JSManagedValue class]]) { - JSValue *value = [static_cast<JSManagedValue *>(object) value]; - if (!value) - return (ObjcContainerConvertor::Task) { object, JSValueMakeUndefined(contextRef), ContainerNone }; - return (ObjcContainerConvertor::Task){ object, value->m_value, ContainerNone }; - } - } - - return (ObjcContainerConvertor::Task){ object, valueInternalValue([context wrapperForObjCObject:object]), ContainerNone }; -} - -JSValueRef objectToValue(JSContext *context, id object) -{ - JSGlobalContextRef contextRef = [context JSGlobalContextRef]; - - ObjcContainerConvertor::Task task = objectToValueWithoutCopy(context, object); - if (task.type == ContainerNone) - return task.js; - - ObjcContainerConvertor convertor(context); - convertor.add(task); - ASSERT(!convertor.isWorkListEmpty()); - - do { - ObjcContainerConvertor::Task current = convertor.take(); - ASSERT(JSValueIsObject(contextRef, current.js)); - JSObjectRef js = JSValueToObject(contextRef, current.js, 0); - - if (current.type == ContainerArray) { - ASSERT([current.objc isKindOfClass:[NSArray class]]); - NSArray *array = (NSArray *)current.objc; - NSUInteger count = [array count]; - for (NSUInteger index = 0; index < count; ++index) - JSObjectSetPropertyAtIndex(contextRef, js, index, convertor.convert([array objectAtIndex:index]), 0); - } else { - ASSERT(current.type == ContainerDictionary); - ASSERT([current.objc isKindOfClass:[NSDictionary class]]); - NSDictionary *dictionary = (NSDictionary *)current.objc; - for (id key in [dictionary keyEnumerator]) { - if ([key isKindOfClass:[NSString class]]) { - JSStringRef propertyName = JSStringCreateWithCFString((CFStringRef)key); - JSObjectSetProperty(contextRef, js, propertyName, convertor.convert([dictionary objectForKey:key]), 0, 0); - JSStringRelease(propertyName); - } - } - } - - } while (!convertor.isWorkListEmpty()); - - return task.js; -} - -JSValueRef valueInternalValue(JSValue * value) -{ - return value->m_value; -} - -+ (JSValue *)valueWithJSValueRef:(JSValueRef)value inContext:(JSContext *)context -{ - return [context wrapperForJSObject:value]; -} - -- (JSValue *)init -{ - return nil; -} - -- (JSValue *)initWithValue:(JSValueRef)value inContext:(JSContext *)context -{ - if (!value || !context) - return nil; - - self = [super init]; - if (!self) - return nil; - - _context = [context retain]; - m_value = value; - JSValueProtect([_context JSGlobalContextRef], m_value); - return self; -} - -struct StructTagHandler { - SEL typeToValueSEL; - SEL valueToTypeSEL; -}; -typedef HashMap<String, StructTagHandler> StructHandlers; - -static StructHandlers* createStructHandlerMap() -{ - StructHandlers* structHandlers = new StructHandlers(); - - size_t valueWithXinContextLength = strlen("valueWithX:inContext:"); - size_t toXLength = strlen("toX"); - - // Step 1: find all valueWith<Foo>:inContext: class methods in JSValue. - forEachMethodInClass(object_getClass([JSValue class]), ^(Method method){ - SEL selector = method_getName(method); - const char* name = sel_getName(selector); - size_t nameLength = strlen(name); - // Check for valueWith<Foo>:context: - if (nameLength < valueWithXinContextLength || memcmp(name, "valueWith", 9) || memcmp(name + nameLength - 11, ":inContext:", 11)) - return; - // Check for [ id, SEL, <type>, <contextType> ] - if (method_getNumberOfArguments(method) != 4) - return; - char idType[3]; - // Check 2nd argument type is "@" - char* secondType = method_copyArgumentType(method, 3); - if (strcmp(secondType, "@") != 0) { - free(secondType); - return; - } - free(secondType); - // Check result type is also "@" - method_getReturnType(method, idType, 3); - if (strcmp(idType, "@") != 0) - return; - char* type = method_copyArgumentType(method, 2); - structHandlers->add(StringImpl::create(type), (StructTagHandler){ selector, 0 }); - free(type); - }); - - // Step 2: find all to<Foo> instance methods in JSValue. - forEachMethodInClass([JSValue class], ^(Method method){ - SEL selector = method_getName(method); - const char* name = sel_getName(selector); - size_t nameLength = strlen(name); - // Check for to<Foo> - if (nameLength < toXLength || memcmp(name, "to", 2)) - return; - // Check for [ id, SEL ] - if (method_getNumberOfArguments(method) != 2) - return; - // Try to find a matching valueWith<Foo>:context: method. - char* type = method_copyReturnType(method); - - StructHandlers::iterator iter = structHandlers->find(type); - free(type); - if (iter == structHandlers->end()) - return; - StructTagHandler& handler = iter->value; - - // check that strlen(<foo>) == strlen(<Foo>) - const char* valueWithName = sel_getName(handler.typeToValueSEL); - size_t valueWithLength = strlen(valueWithName); - if (valueWithLength - valueWithXinContextLength != nameLength - toXLength) - return; - // Check that <Foo> == <Foo> - if (memcmp(valueWithName + 9, name + 2, nameLength - toXLength - 1)) - return; - handler.valueToTypeSEL = selector; - }); - - // Step 3: clean up - remove entries where we found prospective valueWith<Foo>:inContext: conversions, but no matching to<Foo> methods. - typedef HashSet<String> RemoveSet; - RemoveSet removeSet; - for (StructHandlers::iterator iter = structHandlers->begin(); iter != structHandlers->end(); ++iter) { - StructTagHandler& handler = iter->value; - if (!handler.valueToTypeSEL) - removeSet.add(iter->key); - } - - for (RemoveSet::iterator iter = removeSet.begin(); iter != removeSet.end(); ++iter) - structHandlers->remove(*iter); - - return structHandlers; -} - -static StructTagHandler* handerForStructTag(const char* encodedType) -{ - static SpinLock handerForStructTagLock = SPINLOCK_INITIALIZER; - SpinLockHolder lockHolder(&handerForStructTagLock); - - static StructHandlers* structHandlers = createStructHandlerMap(); - - StructHandlers::iterator iter = structHandlers->find(encodedType); - if (iter == structHandlers->end()) - return 0; - return &iter->value; -} - -+ (SEL)selectorForStructToValue:(const char *)structTag -{ - StructTagHandler* handler = handerForStructTag(structTag); - return handler ? handler->typeToValueSEL : nil; -} - -+ (SEL)selectorForValueToStruct:(const char *)structTag -{ - StructTagHandler* handler = handerForStructTag(structTag); - return handler ? handler->valueToTypeSEL : nil; -} - -- (void)dealloc -{ - 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]; -} - -NSInvocation *typeToValueInvocationFor(const char* encodedType) -{ - SEL selector = [JSValue selectorForStructToValue:encodedType]; - if (!selector) - return 0; - - const char* methodTypes = method_getTypeEncoding(class_getClassMethod([JSValue class], selector)); - NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[NSMethodSignature signatureWithObjCTypes:methodTypes]]; - [invocation setSelector:selector]; - return invocation; -} - -NSInvocation *valueToTypeInvocationFor(const char* encodedType) -{ - SEL selector = [JSValue selectorForValueToStruct:encodedType]; - if (!selector) - return 0; - - const char* methodTypes = method_getTypeEncoding(class_getInstanceMethod([JSValue class], selector)); - NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[NSMethodSignature signatureWithObjCTypes:methodTypes]]; - [invocation setSelector:selector]; - return invocation; -} - -@end - -#endif |