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Diffstat (limited to 'js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js')
-rw-r--r-- | js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js b/js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js new file mode 100644 index 0000000000..8fa4a1b125 --- /dev/null +++ b/js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js @@ -0,0 +1,67 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 13.12.11 +description: > + Completion value when execution continues through multiple cases and ends + with an empty abrupt completion +info: | + SwitchStatement : switch ( Expression ) CaseBlock + + [...] + 8. Let R be the result of performing CaseBlockEvaluation of CaseBlock with + argument switchValue. + 9. Set the running execution context’s LexicalEnvironment to oldEnv. + 10. Return R. + + 13.12.9 Runtime Semantics: CaseBlockEvaluation + + CaseBlock : { CaseClausesopt DefaultClause CaseClausesopt } + + 1. Let V = undefined. + 2. Let A be the list of CaseClause items in the first CaseClauses, in + source text order. If the first CaseClauses is not present A is « ». + 3. Let found be false. + 4. Repeat for each CaseClause C in A + a. If found is false, then + [...] + b. If found is true, then + i. Let R be the result of evaluating C. + ii. If R.[[value]] is not empty, let V = R.[[value]]. + iii. If R is an abrupt completion, return Completion(UpdateEmpty(R, + V)). +---*/ + +assert.sameValue( + eval('1; switch ("a") { case "a": 2; case "b": 3; break; default: }'), + 3, + 'Non-empty value replaces previous non-empty value' +); +assert.sameValue( + eval('4; switch ("a") { case "a": case "b": 5; break; default: }'), + 5, + 'Non-empty value replaces empty value' +); +assert.sameValue( + eval('6; switch ("a") { case "a": 7; case "b": break; default: }'), + 7, + 'Empty value does not replace previous non-empty value' +); + +assert.sameValue( + eval('8; do { switch ("a") { case "a": 9; case "b": 10; continue; default: } } while (false)'), + 10, + 'Non-empty value replaces previous non-empty value' +); +assert.sameValue( + eval('11; do { switch ("a") { case "a": case "b": 12; continue; default: } } while (false)'), + 12, + 'Non-empty value replaces empty value' +); +assert.sameValue( + eval('13; do { switch ("a") { case "a": 14; case "b": continue; default: } } while (false)'), + 14, + 'Empty value does not replace previous non-empty value' +); + +reportCompare(0, 0); |