ary-ptrn-elem-obj-val-undef.js (1332B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case 3 // - src/dstr-binding/error/var-stmt.template 4 /*--- 5 description: Nested object destructuring with a value of `undefined` (`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 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 19 20 BindingElement : BindingPattern Initializeropt 21 22 1. If iteratorRecord.[[done]] is false, then 23 [...] 24 e. Else 25 i. Let v be IteratorValue(next). 26 [...] 27 4. Return the result of performing BindingInitialization of BindingPattern 28 with v and environment as the arguments. 29 30 13.3.3.5 Runtime Semantics: BindingInitialization 31 32 BindingPattern : ObjectBindingPattern 33 34 1. Let valid be RequireObjectCoercible(value). 35 2. ReturnIfAbrupt(valid). 36 ---*/ 37 38 assert.throws(TypeError, function() { 39 var [{ x }] = []; 40 }); 41 42 reportCompare(0, 0);