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author | Matt A. Tobin <email@mattatobin.com> | 2022-06-07 20:20:19 -0500 |
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committer | Matt A. Tobin <email@mattatobin.com> | 2022-06-07 20:20:19 -0500 |
commit | 878ab758d5d4c1ef7badf2bc20ebc7c67dc2165b (patch) | |
tree | 3683d6df35e3618c0e7b456de7c749ca4c8c21a6 /js/src/tests/test262/language/expressions/coalesce/short-circuit-number-object.js | |
parent | a621951327b0c19c0c24dfd9fd973f7bd13ae68f (diff) | |
parent | cfb9884423faf741de03c5fcc72bf9ac8c6ada4d (diff) | |
download | aura-central-878ab758d5d4c1ef7badf2bc20ebc7c67dc2165b.tar.gz |
Merge branch 'TRUNK' into ARE-5.0
Diffstat (limited to 'js/src/tests/test262/language/expressions/coalesce/short-circuit-number-object.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/coalesce/short-circuit-number-object.js | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/coalesce/short-circuit-number-object.js b/js/src/tests/test262/language/expressions/coalesce/short-circuit-number-object.js new file mode 100644 index 000000000..5f2eee11e --- /dev/null +++ b/js/src/tests/test262/language/expressions/coalesce/short-circuit-number-object.js @@ -0,0 +1,91 @@ +// Copyright (C) 2019 Leo Balter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Short circuit if the CoalesceExpressionHead is not undefined or null (object) +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; +var obj = { + toString() { + return null; + }, + valueOf() { + return null; + } +}; + +x = undefined; +x = obj ?? 1; +assert.sameValue(x, obj, 'obj ?? 1'); + +x = undefined; +x = obj ?? null; +assert.sameValue(x, obj, 'obj ?? null'); + +x = undefined; +x = obj ?? undefined; +assert.sameValue(x, obj, 'obj ?? undefined'); + +x = undefined; +x = obj ?? null ?? undefined; +assert.sameValue(x, obj, 'obj ?? null ?? undefined'); + +x = undefined; +x = obj ?? undefined ?? null; +assert.sameValue(x, obj, 'obj ?? undefined ?? null'); + +x = undefined; +x = obj ?? null ?? null; +assert.sameValue(x, obj, 'obj ?? null ?? null'); + +x = undefined; +x = obj ?? undefined ?? undefined; +assert.sameValue(x, obj, 'obj ?? null ?? null'); + +x = undefined; +x = null ?? obj ?? null; +assert.sameValue(x, obj, 'null ?? obj ?? null'); + +x = undefined; +x = null ?? obj ?? undefined; +assert.sameValue(x, obj, 'null ?? obj ?? undefined'); + +x = undefined; +x = undefined ?? obj ?? null; +assert.sameValue(x, obj, 'undefined ?? obj ?? null'); + +x = undefined; +x = undefined ?? obj ?? undefined; +assert.sameValue(x, obj, 'undefined ?? obj ?? undefined'); + +reportCompare(0, 0); |