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Diffstat (limited to 'js/src/tests/test262/language/statements/const/dstr/ary-ptrn-rest-ary-elision.js')
-rw-r--r-- | js/src/tests/test262/language/statements/const/dstr/ary-ptrn-rest-ary-elision.js | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/const/dstr/ary-ptrn-rest-ary-elision.js b/js/src/tests/test262/language/statements/const/dstr/ary-ptrn-rest-ary-elision.js new file mode 100644 index 0000000000..b5de2c0cea --- /dev/null +++ b/js/src/tests/test262/language/statements/const/dstr/ary-ptrn-rest-ary-elision.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-elision.case +// - src/dstr-binding/default/const-stmt.template +/*--- +description: Rest element containing an elision (`const` statement) +esid: sec-let-and-const-declarations-runtime-semantics-evaluation +features: [generators, destructuring-binding] +flags: [generated] +info: | + LexicalBinding : BindingPattern Initializer + + 1. Let rhs be the result of evaluating Initializer. + 2. Let value be GetValue(rhs). + 3. ReturnIfAbrupt(value). + 4. Let env be the running execution context's LexicalEnvironment. + 5. Return the result of performing BindingInitialization for BindingPattern + using value and env as the arguments. + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + 2. Return NormalCompletion(empty). + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +const [...[,]] = g(); + +assert.sameValue(first, 1); +assert.sameValue(second, 1); + +reportCompare(0, 0); |