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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-empty.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-empty.js b/js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-empty.js new file mode 100644 index 0000000000..db417ba5bf --- /dev/null +++ b/js/src/tests/test262/language/statements/async-generator/dstr/ary-ptrn-empty.js @@ -0,0 +1,40 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-empty.case +// - src/dstr-binding/default/async-gen-func-decl.template +/*--- +description: No iteration occurs for an "empty" array binding pattern (async generator function declaration) +esid: sec-asyncgenerator-definitions-instantiatefunctionobject +features: [generators, 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 + + ArrayBindingPattern : [ ] + + 1. Return NormalCompletion(empty). + +---*/ +var iterations = 0; +var iter = function*() { + iterations += 1; +}(); + + +var callCount = 0; +async function* f([]) { + assert.sameValue(iterations, 0); + callCount = callCount + 1; +}; +f(iter).next().then(() => { + assert.sameValue(callCount, 1, 'invoked exactly once'); +}).then($DONE, $DONE); |