// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-rest-ary-elision.case // - src/dstr-binding/default/var-stmt.template /*--- description: Rest element containing an elision (`var` statement) esid: sec-variable-statement-runtime-semantics-evaluation features: [generators, destructuring-binding] flags: [generated] info: | VariableDeclaration : BindingPattern Initializer 1. Let rhs be the result of evaluating Initializer. 2. Let rval be GetValue(rhs). 3. ReturnIfAbrupt(rval). 4. Return the result of performing BindingInitialization for BindingPattern passing rval and undefined as arguments. 13.3.3.6 Runtime Semantics: IteratorBindingInitialization BindingRestElement : ... BindingPattern 1. Let A be ArrayCreate(0). [...] 3. Repeat [...] b. If iteratorRecord.[[done]] is true, then i. Return the result of performing BindingInitialization of BindingPattern with A and environment as the arguments. [...] 13.3.3.6 Runtime Semantics: IteratorBindingInitialization ArrayBindingPattern : [ Elision ] 1. Return the result of performing IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord as the argument. 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation Elision : , 1. If iteratorRecord.[[done]] is false, then a. Let next be IteratorStep(iteratorRecord.[[iterator]]). b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. c. ReturnIfAbrupt(next). d. If next is false, set iteratorRecord.[[done]] to true. 2. Return NormalCompletion(empty). ---*/ var first = 0; var second = 0; function* g() { first += 1; yield; second += 1; }; var [...[,]] = g(); assert.sameValue(first, 1); assert.sameValue(second, 1); reportCompare(0, 0);