| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/obj-ptrn-prop-ary-value-null.case |
| // - src/dstr-binding/error/let-stmt.template |
| /*--- |
| description: Object binding pattern with "nested" array binding pattern taking the `null` value (`let` statement) |
| esid: sec-let-and-const-declarations-runtime-semantics-evaluation |
| features: [destructuring-binding] |
| flags: [generated] |
| info: | |
| LexicalBinding : BindingPattern Initializer |
| |
| 1. Let rhs be the result of evaluating Initializer. |
| 2. Let value be GetValue(rhs). |
| 3. ReturnIfAbrupt(value). |
| 4. Let env be the running execution context's LexicalEnvironment. |
| 5. Return the result of performing BindingInitialization for BindingPattern |
| using value and env as the arguments. |
| |
| 13.3.3.7 Runtime Semantics: KeyedBindingInitialization |
| |
| [...] |
| 3. If Initializer is present and v is undefined, then |
| [...] |
| 4. Return the result of performing BindingInitialization for BindingPattern |
| passing v and environment as arguments. |
| ---*/ |
| |
| assert.throws(TypeError, function() { |
| let { w: [x, y, z] = [4, 5, 6] } = { w: null }; |
| }); |