tor-browser

The Tor Browser
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let-ary-ptrn-rest-id-elision-next-err.js (1988B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
      3 // - src/dstr-binding/error/for-let.template
      4 /*---
      5 description: Rest element following elision elements (for statement)
      6 esid: sec-for-statement-runtime-semantics-labelledevaluation
      7 features: [generators, destructuring-binding]
      8 flags: [generated]
      9 info: |
     10    IterationStatement :
     11        for ( LexicalDeclaration Expressionopt ; Expressionopt ) Statement
     12 
     13    [...]
     14    7. Let forDcl be the result of evaluating LexicalDeclaration.
     15    [...]
     16 
     17    LexicalDeclaration : LetOrConst BindingList ;
     18 
     19    1. Let next be the result of evaluating BindingList.
     20    2. ReturnIfAbrupt(next).
     21    3. Return NormalCompletion(empty).
     22 
     23    BindingList : BindingList , LexicalBinding
     24 
     25    1. Let next be the result of evaluating BindingList.
     26    2. ReturnIfAbrupt(next).
     27    3. Return the result of evaluating LexicalBinding.
     28 
     29    LexicalBinding : BindingPattern Initializer
     30 
     31    1. Let rhs be the result of evaluating Initializer.
     32    2. Let value be GetValue(rhs).
     33    3. ReturnIfAbrupt(value).
     34    4. Let env be the running execution context’s LexicalEnvironment.
     35    5. Return the result of performing BindingInitialization for BindingPattern
     36       using value and env as the arguments.
     37 
     38    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
     39    ArrayBindingPattern : [ Elisionopt BindingRestElement ]
     40    1. If Elision is present, then
     41       a. Let status be the result of performing
     42          IteratorDestructuringAssignmentEvaluation of Elision with
     43          iteratorRecord as the argument.
     44       b. ReturnIfAbrupt(status).
     45    2. Return the result of performing IteratorBindingInitialization for
     46       BindingRestElement with iteratorRecord and environment as arguments.
     47 
     48 ---*/
     49 var iter = (function*() { throw new Test262Error(); })();
     50 
     51 assert.throws(Test262Error, function() {
     52  for (let [, ...x] = iter; ; ) {
     53    return;
     54  }
     55 });
     56 
     57 reportCompare(0, 0);