diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/let/dstr/obj-ptrn-id-init-skipped.js')
-rw-r--r-- | js/src/tests/test262/language/statements/let/dstr/obj-ptrn-id-init-skipped.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/let/dstr/obj-ptrn-id-init-skipped.js b/js/src/tests/test262/language/statements/let/dstr/obj-ptrn-id-init-skipped.js new file mode 100644 index 0000000000..0193b5dc2d --- /dev/null +++ b/js/src/tests/test262/language/statements/let/dstr/obj-ptrn-id-init-skipped.js @@ -0,0 +1,41 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-skipped.case +// - src/dstr-binding/default/let-stmt.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (`let` statement) +esid: sec-let-and-const-declarations-runtime-semantics-evaluation +features: [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. + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + [...] +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +let { w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }; + +assert.sameValue(w, null); +assert.sameValue(x, 0); +assert.sameValue(y, false); +assert.sameValue(z, ''); +assert.sameValue(initCount, 0); + +reportCompare(0, 0); |