| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-rest-ary-rest.case |
| // - src/dstr-binding/default/var-stmt.template |
| /*--- |
| description: Rest element containing a rest element (`var` statement) |
| esid: sec-variable-statement-runtime-semantics-evaluation |
| features: [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. |
| [...] |
| ---*/ |
| var values = [1, 2, 3]; |
| |
| var [...[...x]] = values; |
| |
| assert(Array.isArray(x)); |
| assert.sameValue(x.length, 3); |
| assert.sameValue(x[0], 1); |
| assert.sameValue(x[1], 2); |
| assert.sameValue(x[2], 3); |
| assert.notSameValue(x, values); |
| |