1/* 2 * Copyright (C) 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "CurrentThisInsideBlockGetterTest.h" 27 28#if JSC_OBJC_API_ENABLED 29 30#import <Foundation/Foundation.h> 31#import <JavaScriptCore/JavaScriptCore.h> 32 33static JSObjectRef CallAsConstructor(JSContextRef ctx, JSObjectRef constructor, size_t, const JSValueRef[], JSValueRef*) 34{ 35 JSObjectRef newObjectRef = NULL; 36 NSMutableDictionary *constructorPrivateProperties = (__bridge NSMutableDictionary *)(JSObjectGetPrivate(constructor)); 37 NSDictionary *constructorDescriptor = constructorPrivateProperties[@"constructorDescriptor"]; 38 newObjectRef = JSObjectMake(ctx, NULL, NULL); 39 NSDictionary *objectProperties = constructorDescriptor[@"objectProperties"]; 40 41 if (objectProperties) { 42 JSValue *newObject = [JSValue valueWithJSValueRef:newObjectRef inContext:[JSContext contextWithJSGlobalContextRef:JSContextGetGlobalContext(ctx)]]; 43 for (NSString *objectProperty in objectProperties) { 44 [newObject defineProperty:objectProperty descriptor:objectProperties[objectProperty]]; 45 } 46 } 47 48 return newObjectRef; 49} 50 51static void ConstructorFinalize(JSObjectRef object) 52{ 53 NSMutableDictionary *privateProperties = (__bridge NSMutableDictionary *)(JSObjectGetPrivate(object)); 54 CFBridgingRelease((__bridge CFTypeRef)(privateProperties)); 55 JSObjectSetPrivate(object, NULL); 56} 57 58static JSClassRef ConstructorClass(void) 59{ 60 static JSClassRef constructorClass = NULL; 61 62 if (constructorClass == NULL) { 63 JSClassDefinition classDefinition = kJSClassDefinitionEmpty; 64 classDefinition.className = "Constructor"; 65 classDefinition.callAsConstructor = CallAsConstructor; 66 classDefinition.finalize = ConstructorFinalize; 67 constructorClass = JSClassCreate(&classDefinition); 68 } 69 70 return constructorClass; 71} 72 73@interface JSValue (ConstructorCreation) 74 75+ (JSValue *)valueWithConstructorDescriptor:(NSDictionary *)constructorDescriptor inContext:(JSContext *)context; 76 77@end 78 79@implementation JSValue (ConstructorCreation) 80 81+ (JSValue *)valueWithConstructorDescriptor:(id)constructorDescriptor inContext:(JSContext *)context 82{ 83 NSMutableDictionary *privateProperties = [@{ @"constructorDescriptor" : constructorDescriptor } mutableCopy]; 84 JSGlobalContextRef ctx = [context JSGlobalContextRef]; 85 JSObjectRef constructorRef = JSObjectMake(ctx, ConstructorClass(), (void *)CFBridgingRetain(privateProperties)); 86 JSValue *constructor = [JSValue valueWithJSValueRef:constructorRef inContext:context]; 87 return constructor; 88} 89 90@end 91 92@interface JSContext (ConstructorCreation) 93 94- (JSValue *)valueWithConstructorDescriptor:(NSDictionary *)constructorDescriptor; 95 96@end 97 98@implementation JSContext (ConstructorCreation) 99 100- (JSValue *)valueWithConstructorDescriptor:(id)constructorDescriptor 101{ 102 return [JSValue valueWithConstructorDescriptor:constructorDescriptor inContext:self]; 103} 104 105@end 106 107void currentThisInsideBlockGetterTest() 108{ 109 @autoreleasepool { 110 JSContext *context = [[JSContext alloc] init]; 111 112 JSValue *myConstructor = [context valueWithConstructorDescriptor:@{ 113 @"objectProperties" : @{ 114 @"currentThis" : @{ JSPropertyDescriptorGetKey : ^{ return JSContext.currentThis; } }, 115 }, 116 }]; 117 118 JSValue *myObj1 = [myConstructor constructWithArguments:nil]; 119 NSLog(@"myObj1.currentThis: %@", myObj1[@"currentThis"]); 120 JSValue *myObj2 = [myConstructor constructWithArguments:@[ @"bar" ]]; 121 NSLog(@"myObj2.currentThis: %@", myObj2[@"currentThis"]); 122 } 123} 124 125#endif // JSC_OBJC_API_ENABLED 126