| // Copyright (C) 2019 Aleksey Shvayka. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-json.stringify |
| description: > |
| Values that are neither strings nor numbers are ignored. |
| info: | |
| JSON.stringify ( value [ , replacer [ , space ] ] ) |
| |
| [...] |
| 4. If Type(replacer) is Object, then |
| [...] |
| 4. Repeat, while k < len, |
| a. Let v be ? Get(replacer, ! ToString(k)). |
| [...] |
| f. If item is not undefined and item is not currently an element of PropertyList, then |
| i. Append item to the end of PropertyList. |
| features: [Proxy, Symbol] |
| ---*/ |
| |
| var obj = new Proxy({}, { |
| get: function(_target, key) { |
| if (key !== 'toJSON') { |
| throw new Test262Error(); |
| } |
| }, |
| }); |
| |
| var replacer = [ |
| true, |
| false, |
| null, |
| {toString: function() { return 'toString'; }}, |
| Symbol(), |
| ]; |
| |
| assert.sameValue(JSON.stringify(obj, replacer), '{}'); |