blob: fb04d2c0acfbacbeb67ee5d36f45cad6b6358b3c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
// Copyright (C) 2019 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
Abrupt completions are also a Short circuit and prevent evaluation of the right-side expressions
esid: sec-conditional-operator
info: |
ConditionalExpression :
ShortCircuitExpression
ShortCircuitExpression ? AssignmentExpression : AssignmentExpression
ShortCircuitExpression :
LogicalORExpression
CoalesceExpression
CoalesceExpression :
CoalesceExpressionHead ?? BitwiseORExpression
CoalesceExpressionHead :
CoalesceExpression
BitwiseORExpression
Runtime Semantics: Evaluation
CoalesceExpression:CoalesceExpressionHead??BitwiseORExpression
1. Let lref be the result of evaluating CoalesceExpressionHead.
2. Let lval be ? GetValue(lref).
3. If lval is undefined or null,
a. Let rref be the result of evaluating BitwiseORExpression.
b. Return ? GetValue(rref).
4. Otherwise, return lval.
features: [coalesce-expression]
---*/
var x;
function poison() {
throw new Test262Error('poison handled');
}
function morePoison() {
throw 'poison!!!!';
}
x = undefined;
assert.throws(Test262Error, function() {
undefined ?? poison() ?? morePoison();
}, 'undefined ?? poison() ?? morePoison();');
x = undefined;
assert.throws(Test262Error, function() {
null ?? poison() ?? morePoison();
}, 'null ?? poison() ?? morePoison();');
assert.throws(Test262Error, function() {
poison() ?? morePoison();
}, 'poison() ?? morePoison();');
reportCompare(0, 0);
|
