File: bigint-non-primitive.js

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// Copyright (C) 2017 Josh Wolfe. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
description: Bitwise NOT for BigInt object wrappers
esid: sec-bitwise-not-operator-runtime-semantics-evaluation
info: |
  Runtime Semantics: Evaluation
  UnaryExpression : ~ UnaryExpression

  1. Let expr be the result of evaluating UnaryExpression.
  2. Let oldValue be ? ToNumeric(? GetValue(expr)).
  3. Let T be Type(oldValue).
  4. Return ? T::bitwiseNOT(oldValue).

features: [BigInt, Symbol.toPrimitive]
---*/

assert.sameValue(~Object(1n), -2n, "~Object(1n) === -2n");

function err() {
  throw new Test262Error();
}

assert.sameValue(
  ~{[Symbol.toPrimitive]: function() { return 1n; }, valueOf: err, toString: err}, -2n,
  "primitive from @@toPrimitive");
assert.sameValue(
  ~{valueOf: function() { return 1n; }, toString: err}, -2n,
  "primitive from {}.valueOf");
assert.sameValue(
  ~{toString: function() { return 1n; }}, -2n,
  "primitive from {}.toString");