tor-browser

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cls-decl-async-private-gen-meth-static-args-trailing-comma-undefined.js (1520B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/arguments/args-trailing-comma-undefined.case
      4 // - src/arguments/default/cls-decl-async-private-gen-meth-static.template
      5 /*---
      6 description: A trailing comma after undefined should not increase the arguments.length (static class expression private generator method)
      7 esid: sec-argument-lists-runtime-semantics-argumentlistevaluation
      8 features: [async-iteration, class, class-static-methods-private]
      9 flags: [generated, async]
     10 info: |
     11    Arguments :
     12      ( )
     13      ( ArgumentList )
     14      ( ArgumentList , )
     15 
     16    ArgumentList :
     17      AssignmentExpression
     18      ... AssignmentExpression
     19      ArgumentList , AssignmentExpression
     20      ArgumentList , ... AssignmentExpression
     21 
     22 
     23    Trailing comma in the arguments list
     24 
     25    Left-Hand-Side Expressions
     26 
     27    Arguments :
     28        ( )
     29        ( ArgumentList )
     30        ( ArgumentList , )
     31 
     32    ArgumentList :
     33        AssignmentExpression
     34        ... AssignmentExpression
     35        ArgumentList , AssignmentExpression
     36        ArgumentList , ... AssignmentExpression
     37 ---*/
     38 
     39 
     40 var callCount = 0;
     41 class C {
     42  static async * #method() {
     43    assert.sameValue(arguments.length, 2);
     44    assert.sameValue(arguments[0], 42);
     45    assert.sameValue(arguments[1], undefined);
     46    callCount = callCount + 1;
     47  }
     48 
     49  static get method() {
     50      return this.#method;
     51  }
     52 }
     53 
     54 C.method(42, undefined,).next().then(() => {
     55    assert.sameValue(callCount, 1, 'method invoked exactly once');
     56 }).then($DONE, $DONE);