| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * 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. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "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 THE COPYRIGHT |
| // OWNER 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. |
| |
| // Flags: --harmony |
| |
| function testStringify(expected, object) { |
| // Test fast case that bails out to slow case. |
| assertEquals(expected, JSON.stringify(object)); |
| // Test slow case. |
| assertEquals(expected, JSON.stringify(object, undefined, 0)); |
| } |
| |
| // Test serializing a proxy, function proxy and objects that contain them. |
| var handler1 = { |
| get: function(target, name) { |
| return name.toUpperCase(); |
| }, |
| enumerate: function(target) { |
| return ['a', 'b', 'c']; |
| }, |
| getOwnPropertyDescriptor: function(target, name) { |
| return { enumerable: true }; |
| } |
| } |
| |
| var proxy1 = Proxy.create(handler1); |
| testStringify('{"a":"A","b":"B","c":"C"}', proxy1); |
| |
| var proxy_fun = Proxy.createFunction(handler1, function() { return 1; }); |
| testStringify(undefined, proxy_fun); |
| testStringify('[1,null]', [1, proxy_fun]); |
| |
| var parent1a = { b: proxy1 }; |
| testStringify('{"b":{"a":"A","b":"B","c":"C"}}', parent1a); |
| |
| var parent1b = { a: 123, b: proxy1, c: true }; |
| testStringify('{"a":123,"b":{"a":"A","b":"B","c":"C"},"c":true}', parent1b); |
| |
| var parent1c = [123, proxy1, true]; |
| testStringify('[123,{"a":"A","b":"B","c":"C"},true]', parent1c); |
| |
| // Proxy with side effect. |
| var handler2 = { |
| get: function(target, name) { |
| delete parent2.c; |
| return name.toUpperCase(); |
| }, |
| enumerate: function(target) { |
| return ['a', 'b', 'c']; |
| }, |
| getOwnPropertyDescriptor: function(target, name) { |
| return { enumerable: true }; |
| } |
| } |
| |
| var proxy2 = Proxy.create(handler2); |
| var parent2 = { a: "delete", b: proxy2, c: "remove" }; |
| var expected2 = '{"a":"delete","b":{"a":"A","b":"B","c":"C"}}'; |
| assertEquals(expected2, JSON.stringify(parent2)); |
| parent2.c = "remove"; // Revert side effect. |
| assertEquals(expected2, JSON.stringify(parent2, undefined, 0)); |
| |
| // Proxy with a get function that uses the first argument. |
| var handler3 = { |
| get: function(target, name) { |
| if (name == 'valueOf') return function() { return "proxy" }; |
| return name + "(" + target + ")"; |
| }, |
| enumerate: function(target) { |
| return ['a', 'b', 'c']; |
| }, |
| getOwnPropertyDescriptor: function(target, name) { |
| return { enumerable: true }; |
| } |
| } |
| |
| var proxy3 = Proxy.create(handler3); |
| var parent3 = { x: 123, y: proxy3 } |
| testStringify('{"x":123,"y":{"a":"a(proxy)","b":"b(proxy)","c":"c(proxy)"}}', |
| parent3); |
| |
| // Empty proxy. |
| var handler4 = { |
| get: function(target, name) { |
| return 0; |
| }, |
| enumerate: function(target) { |
| return []; |
| }, |
| getOwnPropertyDescriptor: function(target, name) { |
| return { enumerable: false }; |
| } |
| } |
| |
| var proxy4 = Proxy.create(handler4); |
| testStringify('{}', proxy4); |
| testStringify('{"a":{}}', { a: proxy4 }); |
| |
| // Proxy that provides a toJSON function that uses this. |
| var handler5 = { |
| get: function(target, name) { |
| if (name == 'z') return 97000; |
| return function(key) { return key.charCodeAt(0) + this.z; }; |
| }, |
| enumerate: function(target) { |
| return ['toJSON', 'z']; |
| }, |
| getOwnPropertyDescriptor: function(target, name) { |
| return { enumerable: true }; |
| } |
| } |
| |
| var proxy5 = Proxy.create(handler5); |
| testStringify('{"a":97097}', { a: proxy5 }); |
| |
| // Proxy that provides a toJSON function that returns undefined. |
| var handler6 = { |
| get: function(target, name) { |
| return function(key) { return undefined; }; |
| }, |
| enumerate: function(target) { |
| return ['toJSON']; |
| }, |
| getOwnPropertyDescriptor: function(target, name) { |
| return { enumerable: true }; |
| } |
| } |
| |
| var proxy6 = Proxy.create(handler6); |
| testStringify('[1,null,true]', [1, proxy6, true]); |
| testStringify('{"a":1,"c":true}', {a: 1, b: proxy6, c: true}); |
| |
| // Object containing a proxy that changes the parent's properties. |
| var handler7 = { |
| get: function(target, name) { |
| delete parent7.a; |
| delete parent7.c; |
| parent7.e = "5"; |
| return name.toUpperCase(); |
| }, |
| enumerate: function(target) { |
| return ['a', 'b', 'c']; |
| }, |
| getOwnPropertyDescriptor: function(target, name) { |
| return { enumerable: true }; |
| } |
| } |
| |
| var proxy7 = Proxy.create(handler7); |
| var parent7 = { a: "1", b: proxy7, c: "3", d: "4" }; |
| assertEquals('{"a":"1","b":{"a":"A","b":"B","c":"C"},"d":"4"}', |
| JSON.stringify(parent7)); |
| assertEquals('{"b":{"a":"A","b":"B","c":"C"},"d":"4","e":"5"}', |
| JSON.stringify(parent7)); |