mirror of https://github.com/tc39/test262.git
51 lines
1.9 KiB
JavaScript
51 lines
1.9 KiB
JavaScript
// Copyright (C) 2017 Josh Wolfe. 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: Right shift for non-primitive BigInt values
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esid: sec-signed-right-shift-operator-runtime-semantics-evaluation
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info: |
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ShiftExpression : ShiftExpression >> AdditiveExpression
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1. Let lref be the result of evaluating ShiftExpression.
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2. Let lval be ? GetValue(lref).
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3. Let rref be the result of evaluating AdditiveExpression.
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4. Let rval be ? GetValue(rref).
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5. Let lnum be ? ToNumeric(lval).
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6. Let rnum be ? ToNumeric(rval).
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7. If Type(lnum) does not equal Type(rnum), throw a TypeError exception.
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8. Let T be Type(lnum).
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9. Return T::signedRightShift(lnum, rnum).
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features: [BigInt, Symbol.toPrimitive]
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---*/
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assert.sameValue(Object(0b101n) >> 1n, 0b10n, "Object(0b101n) >> 1n === 0b10n");
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assert.sameValue(Object(0b101n) >> Object(1n), 0b10n, "Object(0b101n) >> Object(1n) === 0b10n");
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function err() {
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throw new Test262Error();
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}
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assert.sameValue(
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{[Symbol.toPrimitive]: function() { return 0b101n; }, valueOf: err, toString: err} >> 1n, 0b10n,
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"primitive from @@toPrimitive");
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assert.sameValue(
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{valueOf: function() { return 0b101n; }, toString: err} >> 1n, 0b10n,
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"primitive from {}.valueOf");
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assert.sameValue(
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{toString: function() { return 0b101n; }} >> 1n, 0b10n,
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"primitive from {}.toString");
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assert.sameValue(
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0b101n >> {[Symbol.toPrimitive]: function() { return 1n; }, valueOf: err, toString: err}, 0b10n,
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"primitive from @@toPrimitive");
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assert.sameValue(
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0b101n >> {valueOf: function() { return 1n; }, toString: err}, 0b10n,
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"primitive from {}.valueOf");
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assert.sameValue(
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0b101n >> {toString: function() { return 1n; }}, 0b10n,
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"primitive from {}.toString");
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assert.sameValue(
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{valueOf: function() { return 0b101n; }} >> {valueOf: function() { return 1n; }}, 0b10n,
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"primitive from {}.valueOf");
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