var-obj-ptrn-id-init-throws.js (1656B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-id-init-throws.case 3 // - src/dstr-binding/error/for-of-var.template 4 /*--- 5 description: Error thrown when evaluating the initializer (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 13.3.3.7 Runtime Semantics: KeyedBindingInitialization 36 37 SingleNameBinding : BindingIdentifier Initializeropt 38 39 [...] 40 6. If Initializer is present and v is undefined, then 41 a. Let defaultValue be the result of evaluating Initializer. 42 b. Let v be GetValue(defaultValue). 43 c. ReturnIfAbrupt(v). 44 ---*/ 45 function thrower() { 46 throw new Test262Error(); 47 } 48 49 assert.throws(Test262Error, function() { 50 for (var { x = thrower() } of [{}]) { 51 return; 52 } 53 }); 54 55 reportCompare(0, 0);