array-elem-put-obj-literal-prop-ref-init-active.js (2759B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-assignment/array-elem-put-obj-literal-prop-ref-init-active.case 3 // - src/dstr-assignment/default/assignment-expr.template 4 /*--- 5 description: The DestructuringAssignmentTarget of an AssignmentElement can extend to LHSExpressions if it is neither an ObjectLiteral nor an ArrayLiteral and its AssignmentTargetTyp is simple. Using MemberExpression (ObjLiteral + identifier) with activated initializer. (AssignmentExpression) 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 Syntax 19 20 AssignmentPattern : ArrayAssignmentPattern 21 ArrayAssignmentPattern : [ AssignmentElementList ] 22 AssignmentElementList : AssignmentElisionElement 23 AssignmentElisionElement : Elision_opt AssignmentElement 24 AssignmentElement : DestructuringAssignmentTarget Initializer_opt 25 DestructuringAssignmentTarget : LeftHandSideExpression 26 27 Static Semantics: Early Errors 28 29 DestructuringAssignmentTarget : LeftHandSideExpression 30 31 - It is a Syntax Error if LeftHandSideExpression is either an ObjectLiteral or an ArrayLiteral and if LeftHandSideExpression is not covering an AssignmentPattern. 32 - It is a Syntax Error if LeftHandSideExpression is neither an ObjectLiteral nor an ArrayLiteral and AssignmentTargetType(LeftHandSideExpression) is not simple. 33 34 Runtime Semantics: DestructuringAssignmentEvaluation 35 ArrayAssignmentPattern : [ AssignmentElementList ] 36 37 1. Let iteratorRecord be ? GetIterator(value). 38 2. Let result be IteratorDestructuringAssignmentEvaluation of AssignmentElementList with argument iteratorRecord. 39 3. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iteratorRecord, result). 40 4. Return result. 41 42 Runtime Semantics: IteratorDestructuringAssignmentEvaluation 43 AssignmentElement : DestructuringAssignmentTarget Initializer 44 45 1. If DestructuringAssignmentTarget is neither an ObjectLiteral nor an ArrayLiteral, then 46 a. Let lref be the result of evaluating DestructuringAssignmentTarget. 47 ... 48 7. Return ? PutValue(lref, v). 49 50 ---*/ 51 var x, setValue; 52 53 var result; 54 var vals = [undefined]; 55 56 result = [{ 57 get y() { 58 throw new Test262Error('The property should not be accessed.'); 59 }, 60 set y(val) { 61 setValue = val; 62 } 63 }.y = 42] = vals; 64 65 assert.sameValue(setValue, 42); 66 67 68 assert.sameValue(result, vals); 69 70 reportCompare(0, 0);