| // Copyright (C) 2017 Robin Templeton. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: BigInt stringify order of steps |
| esid: sec-serializejsonproperty |
| info: | |
| Runtime Semantics: SerializeJSONProperty ( key, holder ) |
| |
| 2. If Type(value) is Object or BigInt, then |
| a. Let toJSON be ? GetGetV(value, "toJSON"). |
| b. If IsCallable(toJSON) is true, then |
| i. Set value to ? Call(toJSON, value, « key »). |
| 3. If ReplacerFunction is not undefined, then |
| a. Set value to ? Call(ReplacerFunction, holder, « key, value »). |
| 4. If Type(value) is Object, then |
| [...] |
| d. Else if value has a [[BigIntData]] internal slot, then |
| i. Set value to value.[[BigIntData]]. |
| [...] |
| 10. If Type(value) is BigInt, throw a TypeError exception |
| features: [BigInt, arrow-function] |
| ---*/ |
| |
| let step; |
| |
| function replacer(x, k, v) |
| { |
| assert.sameValue(step++, 1); |
| assert.sameValue(v, 1n); |
| return x; |
| } |
| |
| BigInt.prototype.toJSON = function () { assert.sameValue(step++, 0); return 1n; }; |
| |
| step = 0; |
| assert.throws(TypeError, () => JSON.stringify(0n, (k, v) => replacer(2n, k, v))); |
| assert.sameValue(step, 2); |
| |
| step = 0; |
| assert.throws(TypeError, () => JSON.stringify(0n, (k, v) => replacer(Object(2n), k, v))); |
| assert.sameValue(step, 2); |