var-ary-ptrn-elem-obj-val-null.js (1831B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elem-obj-val-null.case 3 // - src/dstr-binding/error/for-of-var.template 4 /*--- 5 description: Nested object destructuring with a null value (for-of statement) 6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 IterationStatement : 11 for ( var ForBinding of AssignmentExpression ) Statement 12 13 [...] 14 3. Return ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult, 15 varBinding, labelSet). 16 17 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation 18 19 [...] 20 3. Let destructuring be IsDestructuring of lhs. 21 [...] 22 5. Repeat 23 [...] 24 h. If destructuring is false, then 25 [...] 26 i. Else 27 i. If lhsKind is assignment, then 28 [...] 29 ii. Else if lhsKind is varBinding, then 30 1. Assert: lhs is a ForBinding. 31 2. Let status be the result of performing BindingInitialization 32 for lhs passing nextValue and undefined as the arguments. 33 [...] 34 35 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 36 37 BindingElement : BindingPattern Initializeropt 38 39 1. If iteratorRecord.[[done]] is false, then 40 [...] 41 e. Else 42 i. Let v be IteratorValue(next). 43 [...] 44 4. Return the result of performing BindingInitialization of BindingPattern 45 with v and environment as the arguments. 46 47 13.3.3.5 Runtime Semantics: BindingInitialization 48 49 BindingPattern : ObjectBindingPattern 50 51 1. Let valid be RequireObjectCoercible(value). 52 2. ReturnIfAbrupt(valid). 53 ---*/ 54 55 assert.throws(TypeError, function() { 56 for (var [{ x }] of [[null]]) { 57 return; 58 } 59 }); 60 61 reportCompare(0, 0);