| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-elem-ary-val-null.case |
| // - src/dstr-binding/error/for-of-var.template |
| /*--- |
| description: Nested array destructuring with a null value (for-of statement) |
| esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation |
| es6id: 13.7.5.11 |
| features: [destructuring-binding] |
| flags: [generated] |
| info: | |
| IterationStatement : |
| for ( var ForBinding of AssignmentExpression ) Statement |
| |
| [...] |
| 3. Return ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult, |
| varBinding, labelSet). |
| |
| 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation |
| |
| [...] |
| 3. Let destructuring be IsDestructuring of lhs. |
| [...] |
| 5. Repeat |
| [...] |
| h. If destructuring is false, then |
| [...] |
| i. Else |
| i. If lhsKind is assignment, then |
| [...] |
| ii. Else if lhsKind is varBinding, then |
| 1. Assert: lhs is a ForBinding. |
| 2. Let status be the result of performing BindingInitialization |
| for lhs passing nextValue and undefined as the 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 : ArrayBindingPattern |
| |
| 1. Let iterator be GetIterator(value). |
| 2. ReturnIfAbrupt(iterator). |
| ---*/ |
| |
| assert.throws(TypeError, function() { |
| for (var [[x]] of [[null]]) { |
| return; |
| } |
| }); |