mirror of https://github.com/tc39/test262.git
28 lines
850 B
JavaScript
28 lines
850 B
JavaScript
// Copyright (C) 2022 Kevin Gibbons. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: BigInt constructor only coerces its input once
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esid: sec-bigint-constructor-number-value
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info: |
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BigInt ( value )
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1. If NewTarget is not undefined, throw a TypeError exception.
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2. Let prim be ? ToPrimitive(value, number).
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3. If Type(prim) is Number, return ? NumberToBigInt(prim).
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4. Otherwise, return ? ToBigInt(prim).
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features: [BigInt]
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---*/
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var first = true;
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var v = {
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[Symbol.toPrimitive]: function() {
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if (first) {
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first = false;
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return "42";
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}
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throw new Test262Error("Symbol.toPrimitive should only be invoked once");
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},
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};
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assert.sameValue(BigInt(v), 42n, "BigInt constructor should use the post-ToPrimitive value as the argument to ToBigInt");
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