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Diffstat (limited to 'js/src/tests/test262/language/statements/switch/cptn-b-final.js')
-rw-r--r-- | js/src/tests/test262/language/statements/switch/cptn-b-final.js | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/switch/cptn-b-final.js b/js/src/tests/test262/language/statements/switch/cptn-b-final.js new file mode 100644 index 0000000000..90b0419e13 --- /dev/null +++ b/js/src/tests/test262/language/statements/switch/cptn-b-final.js @@ -0,0 +1,80 @@ +// 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 the final case matches +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 : { CaseClauses } + + 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 + [...] + 5. Let foundInB be false. + 6. Let B be the List containing the CaseClause items in the second + CaseClauses, in source text order. If the second CaseClauses is not + present B is « ». + 7. If found is false, then + a. Repeat for each CaseClause C in B + i. If foundInB is false, then + 1. Let clauseSelector be the result of CaseSelectorEvaluation of + C. + 2. If clauseSelector is an abrupt completion, then + a. If clauseSelector.[[value]] is empty, return + Completion{[[type]]: clauseSelector.[[type]], [[value]]: + undefined, [[target]]: clauseSelector.[[target]]}. + b. Else, return Completion(clauseSelector). + 3. Let foundInB be the result of performing Strict Equality + Comparison input === clauseSelector.[[value]]. + ii. If foundInB is true, then + 1. Let R be the result of evaluating CaseClause C. + 2. If R.[[value]] is not empty, let V = R.[[value]]. + 3. If R is an abrupt completion, return + Completion(UpdateEmpty(R, V)). + 8. If foundInB is true, return NormalCompletion(V). +---*/ + +assert.sameValue( + eval('1; switch ("a") { default: case "a": }'), + undefined, + 'empty StatementList (lone case)' +); +assert.sameValue( + eval('2; switch ("a") { default: case "a": 3; }'), + 3, + 'non-empy StatementList (lone case)' +); +assert.sameValue( + eval('4; switch ("b") { default: case "a": case "b": }'), + undefined, + 'empty StatementList (following an empty case)' +); +assert.sameValue( + eval('5; switch ("b") { default: case "a": case "b": 6; }'), + 6, + 'non-empty StatementList (following an empty case)' +); +assert.sameValue( + eval('7; switch ("b") { default: case "a": 8; case "b": }'), + undefined, + 'empty StatementList (following a non-empty case)' +); +assert.sameValue( + eval('9; switch ("b") { default: case "a": 10; case "b": 11; }'), + 11, + 'non-empty StatementList (following a non-empty case)' +); + +reportCompare(0, 0); |