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Diffstat (limited to 'js/src/tests/test262/language/expressions/coalesce/short-circuit-number-true.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/coalesce/short-circuit-number-true.js | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/coalesce/short-circuit-number-true.js b/js/src/tests/test262/language/expressions/coalesce/short-circuit-number-true.js new file mode 100644 index 0000000000..9b24181ab3 --- /dev/null +++ b/js/src/tests/test262/language/expressions/coalesce/short-circuit-number-true.js @@ -0,0 +1,83 @@ +// 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 (true) +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; + +x = undefined; +x = true ?? 1; +assert.sameValue(x, true, 'true ?? null'); + +x = undefined; +x = true ?? null; +assert.sameValue(x, true, 'true ?? null'); + +x = undefined; +x = true ?? undefined; +assert.sameValue(x, true, 'true ?? undefined'); + +x = undefined; +x = true ?? null ?? undefined; +assert.sameValue(x, true, 'true ?? null ?? undefined'); + +x = undefined; +x = true ?? undefined ?? null; +assert.sameValue(x, true, 'true ?? undefined ?? null'); + +x = undefined; +x = true ?? null ?? null; +assert.sameValue(x, true, 'true ?? null ?? null'); + +x = undefined; +x = true ?? undefined ?? undefined; +assert.sameValue(x, true, 'true ?? null ?? null'); + +x = undefined; +x = null ?? true ?? null; +assert.sameValue(x, true, 'null ?? true ?? null'); + +x = undefined; +x = null ?? true ?? undefined; +assert.sameValue(x, true, 'null ?? true ?? undefined'); + +x = undefined; +x = undefined ?? true ?? null; +assert.sameValue(x, true, 'undefined ?? true ?? null'); + +x = undefined; +x = undefined ?? true ?? undefined; +assert.sameValue(x, true, 'undefined ?? true ?? undefined'); + +reportCompare(0, 0); |