obj-prop-put-prop-ref-no-get.js (1447B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-assignment/obj-prop-put-prop-ref-no-get.case 3 // - src/dstr-assignment/default/for-of.template 4 /*--- 5 description: If the DestructuringAssignmentTarget of an AssignmentElement is a PropertyReference, it should not be evaluated. (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 ( LeftHandSideExpression of AssignmentExpression ) Statement 12 13 1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« », 14 AssignmentExpression, iterate). 15 2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement, 16 keyResult, assignment, labelSet). 17 18 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation 19 20 [...] 21 4. If destructuring is true and if lhsKind is assignment, then 22 a. Assert: lhs is a LeftHandSideExpression. 23 b. Let assignmentPattern be the parse of the source text corresponding to 24 lhs using AssignmentPattern as the goal symbol. 25 [...] 26 ---*/ 27 var setValue; 28 var x = { 29 get y() { 30 throw new Test262Error('The property should not be accessed.'); 31 }, 32 set y(val) { 33 setValue = val; 34 } 35 }; 36 37 var counter = 0; 38 39 for ({ a: x.y } of [{ a: 23 }]) { 40 assert.sameValue(setValue, 23); 41 counter += 1; 42 } 43 44 assert.sameValue(counter, 1); 45 46 reportCompare(0, 0);