ary-ptrn-rest-id-exhausted.js (1268B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-rest-id-exhausted.case 3 // - src/dstr-binding/default/var-stmt.template 4 /*--- 5 description: RestElement applied to an exhausted iterator (`var` statement) 6 esid: sec-variable-statement-runtime-semantics-evaluation 7 features: [Symbol.iterator, 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 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 19 BindingRestElement : ... BindingIdentifier 20 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, 21 environment). 22 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, 23 [...] 24 b. If iteratorRecord.[[done]] is true, then 25 i. If environment is undefined, return PutValue(lhs, A). 26 ii. Return InitializeReferencedBinding(lhs, A). 27 28 ---*/ 29 30 var [, , ...x] = [1, 2]; 31 32 assert(Array.isArray(x)); 33 assert.sameValue(x.length, 0); 34 35 reportCompare(0, 0);