| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-init-iter-get-err.case |
| // - src/dstr-binding/error/for-const.template |
| /*--- |
| description: Abrupt completion returned by GetIterator (for statement) |
| esid: sec-for-statement-runtime-semantics-labelledevaluation |
| features: [Symbol.iterator, destructuring-binding] |
| flags: [generated] |
| info: | |
| IterationStatement : |
| for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement |
| |
| [...] |
| 7. Let forDcl be the result of evaluating LexicalDeclaration. |
| [...] |
| |
| LexicalDeclaration : LetOrConst BindingList ; |
| |
| 1. Let next be the result of evaluating BindingList. |
| 2. ReturnIfAbrupt(next). |
| 3. Return NormalCompletion(empty). |
| |
| BindingList : BindingList , LexicalBinding |
| |
| 1. Let next be the result of evaluating BindingList. |
| 2. ReturnIfAbrupt(next). |
| 3. Return the result of evaluating LexicalBinding. |
| |
| 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. |
| |
| 13.3.3.5 Runtime Semantics: BindingInitialization |
| |
| BindingPattern : ArrayBindingPattern |
| |
| 1. Let iterator be GetIterator(value). |
| 2. ReturnIfAbrupt(iterator). |
| |
| ---*/ |
| var iter = {}; |
| iter[Symbol.iterator] = function() { |
| throw new Test262Error(); |
| }; |
| |
| assert.throws(Test262Error, function() { |
| for (const [x] = iter; ; ) { |
| return; |
| } |
| }); |