diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-elem-ary-rest-iter.js')
-rw-r--r-- | js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-elem-ary-rest-iter.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-elem-ary-rest-iter.js b/js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-elem-ary-rest-iter.js new file mode 100644 index 0000000000..9271decb43 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-elem-ary-rest-iter.js @@ -0,0 +1,50 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case +// - src/dstr-binding/default/async-gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (async generator function declaration) +esid: sec-asyncgenerator-definitions-instantiatefunctionobject +features: [async-iteration] +flags: [generated, async] +info: | + AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier + ( FormalParameters ) { AsyncGeneratorBody } + + [...] + 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody, + scope, strict). + [...] + + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var values = [2, 1, 3]; +var initCount = 0; + + +var callCount = 0; +async function* f([[...x] = function() { initCount += 1; }()]) { + assert(Array.isArray(x)); + assert.sameValue(x[0], 2); + assert.sameValue(x[1], 1); + assert.sameValue(x[2], 3); + assert.sameValue(x.length, 3); + assert.notSameValue(x, values); + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f([values]).next().then(() => { + assert.sameValue(callCount, 1, 'invoked exactly once'); +}).then($DONE, $DONE); |