tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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let-ary-ptrn-elem-id-init-hole.js (1935B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
      3 // - src/dstr-binding/default/for-let.template
      4 /*---
      5 description: Destructuring initializer with a "hole" (for statement)
      6 esid: sec-for-statement-runtime-semantics-labelledevaluation
      7 features: [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    SingleNameBinding : BindingIdentifier Initializeropt
     40    [...] 6. If Initializer is present and v is undefined, then
     41       a. Let defaultValue be the result of evaluating Initializer.
     42       b. Let v be GetValue(defaultValue).
     43       [...]
     44    7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
     45 ---*/
     46 
     47 var iterCount = 0;
     48 
     49 for (let [x = 23] = [,]; iterCount < 1; ) {
     50  assert.sameValue(x, 23);
     51  // another statement
     52 
     53  iterCount += 1;
     54 }
     55 
     56 assert.sameValue(iterCount, 1, 'Iteration occurred as expected');
     57 
     58 reportCompare(0, 0);