From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- ...dstr-let-async-ary-ptrn-elem-id-init-skipped.js | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 js/src/tests/test262/language/statements/for-await-of/async-gen-dstr-let-async-ary-ptrn-elem-id-init-skipped.js (limited to 'js/src/tests/test262/language/statements/for-await-of/async-gen-dstr-let-async-ary-ptrn-elem-id-init-skipped.js') diff --git a/js/src/tests/test262/language/statements/for-await-of/async-gen-dstr-let-async-ary-ptrn-elem-id-init-skipped.js b/js/src/tests/test262/language/statements/for-await-of/async-gen-dstr-let-async-ary-ptrn-elem-id-init-skipped.js new file mode 100644 index 0000000000..b2097cfb15 --- /dev/null +++ b/js/src/tests/test262/language/statements/for-await-of/async-gen-dstr-let-async-ary-ptrn-elem-id-init-skipped.js @@ -0,0 +1,73 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-binding-for-await/ary-ptrn-elem-id-init-skipped.case +// - src/dstr-binding-for-await/default/for-await-of-async-gen-let-async.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (for-await-of statement) +esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation +features: [destructuring-binding, async-iteration] +flags: [generated, async] +info: | + IterationStatement : + for await ( ForDeclaration of AssignmentExpression ) Statement + + [...] + 2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult, + lexicalBinding, labelSet, async). + + 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation + + [...] + 4. Let destructuring be IsDestructuring of lhs. + [...] + 6. Repeat + [...] + j. If destructuring is false, then + [...] + k. Else + i. If lhsKind is assignment, then + [...] + ii. Else if lhsKind is varBinding, then + [...] + iii. Else, + 1. Assert: lhsKind is lexicalBinding. + 2. Assert: lhs is a ForDeclaration. + 3. Let status be the result of performing BindingInitialization + for lhs passing nextValue and iterationEnv as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializer_opt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 7. Return InitializeReferencedBinding(lhs, v). +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var iterCount = 0; +var asyncIter = (async function*() { + yield* [[null, 0, false, '']]; +})(); + +async function *fn() { + for await (let [w = counter(), x = counter(), y = counter(), z = counter()] of asyncIter) { + assert.sameValue(w, null); + assert.sameValue(x, 0); + assert.sameValue(y, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + + iterCount += 1; + } +} + +fn().next() + .then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE) + .then($DONE, $DONE); -- cgit v1.2.3