// 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); reportCompare(0, 0);