Source code
Revision control
Copy as Markdown
Other Tools
// Copyright (C) 2017 Josh Wolfe. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Right shift for non-primitive BigInt values
esid: sec-signed-right-shift-operator-runtime-semantics-evaluation
info: |
ShiftExpression : ShiftExpression >> AdditiveExpression
1. Let lref be the result of evaluating ShiftExpression.
2. Let lval be ? GetValue(lref).
3. Let rref be the result of evaluating AdditiveExpression.
4. Let rval be ? GetValue(rref).
5. Let lnum be ? ToNumeric(lval).
6. Let rnum be ? ToNumeric(rval).
7. If Type(lnum) does not equal Type(rnum), throw a TypeError exception.
8. Let T be Type(lnum).
9. Return T::signedRightShift(lnum, rnum).
features: [BigInt, Symbol.toPrimitive]
---*/
assert.sameValue(Object(0b101n) >> 1n, 0b10n, 'The result of (Object(0b101n) >> 1n) is 0b10n');
assert.sameValue(
Object(0b101n) >> Object(1n),
0b10n,
'The result of (Object(0b101n) >> Object(1n)) is 0b10n'
);
function err() {
throw new Test262Error();
}
assert.sameValue({
[Symbol.toPrimitive]: function() {
return 0b101n;
},
valueOf: err,
toString: err
} >> 1n, 0b10n, 'The result of (({[Symbol.toPrimitive]: function() {return 0b101n;}, valueOf: err, toString: err}) >> 1n) is 0b10n');
assert.sameValue({
valueOf: function() {
return 0b101n;
},
toString: err
} >> 1n, 0b10n, 'The result of (({valueOf: function() {return 0b101n;}, toString: err}) >> 1n) is 0b10n');
assert.sameValue({
toString: function() {
return 0b101n;
}
} >> 1n, 0b10n, 'The result of (({toString: function() {return 0b101n;}}) >> 1n) is 0b10n');
assert.sameValue(0b101n >> {
[Symbol.toPrimitive]: function() {
return 1n;
},
valueOf: err,
toString: err
}, 0b10n, 'The result of (0b101n >> {[Symbol.toPrimitive]: function() {return 1n;}, valueOf: err, toString: err}) is 0b10n');
assert.sameValue(0b101n >> {
valueOf: function() {
return 1n;
},
toString: err
}, 0b10n, 'The result of (0b101n >> {valueOf: function() {return 1n;}, toString: err}) is 0b10n');
assert.sameValue(0b101n >> {
toString: function() {
return 1n;
}
}, 0b10n, 'The result of (0b101n >> {toString: function() {return 1n;}}) is 0b10n');
assert.sameValue({
valueOf: function() {
return 0b101n;
}
} >> {
valueOf: function() {
return 1n;
}
}, 0b10n, 'The result of (({valueOf: function() {return 0b101n;}}) >> {valueOf: function() {return 1n;}}) is 0b10n');
reportCompare(0, 0);