obj-ptrn-prop-obj-value-undef.js (1096B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case 3 // - src/dstr-binding/error/var-stmt.template 4 /*--- 5 description: Object binding pattern with "nested" object binding pattern taking the `null` value (`var` statement) 6 esid: sec-variable-statement-runtime-semantics-evaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 VariableDeclaration : BindingPattern Initializer 11 12 1. Let rhs be the result of evaluating Initializer. 13 2. Let rval be GetValue(rhs). 14 3. ReturnIfAbrupt(rval). 15 4. Return the result of performing BindingInitialization for 16 BindingPattern passing rval and undefined as arguments. 17 18 13.3.3.7 Runtime Semantics: KeyedBindingInitialization 19 20 [...] 21 3. If Initializer is present and v is undefined, then 22 [...] 23 4. Return the result of performing BindingInitialization for BindingPattern 24 passing v and environment as arguments. 25 ---*/ 26 27 assert.throws(TypeError, function() { 28 var { w: { x, y, z } = undefined } = { }; 29 }); 30 31 reportCompare(0, 0);