diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/for/dstr/const-obj-ptrn-prop-id-init-skipped.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for/dstr/const-obj-ptrn-prop-id-init-skipped.js | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for/dstr/const-obj-ptrn-prop-id-init-skipped.js b/js/src/tests/test262/language/statements/for/dstr/const-obj-ptrn-prop-id-init-skipped.js new file mode 100644 index 0000000000..0368f83485 --- /dev/null +++ b/js/src/tests/test262/language/statements/for/dstr/const-obj-ptrn-prop-id-init-skipped.js @@ -0,0 +1,78 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case +// - src/dstr-binding/default/for-const.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (for statement) +esid: sec-for-statement-runtime-semantics-labelledevaluation +features: [destructuring-binding] +flags: [generated] +info: | + IterationStatement : + for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement + + [...] + 7. Let forDcl be the result of evaluating LexicalDeclaration. + [...] + + LexicalDeclaration : LetOrConst BindingList ; + + 1. Let next be the result of evaluating BindingList. + 2. ReturnIfAbrupt(next). + 3. Return NormalCompletion(empty). + + BindingList : BindingList , LexicalBinding + + 1. Let next be the result of evaluating BindingList. + 2. ReturnIfAbrupt(next). + 3. Return the result of evaluating LexicalBinding. + + 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. + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + [...] + 3. If Initializer is present and v is undefined, then + [...] +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var iterCount = 0; + +for (const { s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }; iterCount < 1; ) { + assert.sameValue(t, null); + assert.sameValue(v, 0); + assert.sameValue(x, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + + assert.throws(ReferenceError, function() { + s; + }); + assert.throws(ReferenceError, function() { + u; + }); + assert.throws(ReferenceError, function() { + w; + }); + assert.throws(ReferenceError, function() { + y; + }); + + iterCount += 1; +} + +assert.sameValue(iterCount, 1, 'Iteration occurred as expected'); + +reportCompare(0, 0); |