| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case |
| // - src/dstr-binding/error/var-stmt.template |
| /*--- |
| description: Nested object destructuring with a value of `undefined` (`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 |
| |
| BindingElement : BindingPattern Initializeropt |
| |
| 1. If iteratorRecord.[[done]] is false, then |
| [...] |
| e. Else |
| i. Let v be IteratorValue(next). |
| [...] |
| 4. Return the result of performing BindingInitialization of BindingPattern |
| with v and environment as the arguments. |
| |
| 13.3.3.5 Runtime Semantics: BindingInitialization |
| |
| BindingPattern : ObjectBindingPattern |
| |
| 1. Let valid be RequireObjectCoercible(value). |
| 2. ReturnIfAbrupt(valid). |
| ---*/ |
| |
| assert.throws(TypeError, function() { |
| var [{ x }] = []; |
| }); |