ary-ptrn-rest-id-exhausted.js (1346B)
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/const-stmt.template 4 /*--- 5 description: RestElement applied to an exhausted iterator (`const` statement) 6 esid: sec-let-and-const-declarations-runtime-semantics-evaluation 7 features: [Symbol.iterator, destructuring-binding] 8 flags: [generated] 9 info: | 10 LexicalBinding : BindingPattern Initializer 11 12 1. Let rhs be the result of evaluating Initializer. 13 2. Let value be GetValue(rhs). 14 3. ReturnIfAbrupt(value). 15 4. Let env be the running execution context's LexicalEnvironment. 16 5. Return the result of performing BindingInitialization for BindingPattern 17 using value and env as the arguments. 18 19 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 20 BindingRestElement : ... BindingIdentifier 21 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, 22 environment). 23 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, 24 [...] 25 b. If iteratorRecord.[[done]] is true, then 26 i. If environment is undefined, return PutValue(lhs, A). 27 ii. Return InitializeReferencedBinding(lhs, A). 28 29 ---*/ 30 31 const [, , ...x] = [1, 2]; 32 33 assert(Array.isArray(x)); 34 assert.sameValue(x.length, 0); 35 36 reportCompare(0, 0);