tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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yield-identifier-spread-strict-strict.js (2059B)

      1 // |reftest| error:SyntaxError
      2 'use strict';
      3 // This file was procedurally generated from the following sources:
      4 // - src/async-generators/yield-identifier-spread-strict.case
      5 // - src/async-generators/default/async-class-decl-static-private-method.template
      6 /*---
      7 description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Static async generator method as a ClassDeclaration element)
      8 esid: prod-AsyncGeneratorPrivateMethod
      9 features: [object-spread, async-iteration, class-static-methods-private]
     10 flags: [generated, onlyStrict]
     11 negative:
     12  phase: parse
     13  type: SyntaxError
     14 info: |
     15    ClassElement :
     16      static PrivateMethodDefinition
     17 
     18    MethodDefinition :
     19      AsyncGeneratorMethod
     20 
     21    Async Generator Function Definitions
     22 
     23    AsyncGeneratorMethod :
     24      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
     25 
     26 
     27    Spread Properties
     28 
     29    PropertyDefinition[Yield]:
     30      (...)
     31      ...AssignmentExpression[In, ?Yield]
     32 
     33 ---*/
     34 $DONOTEVALUATE();
     35 
     36 
     37 var callCount = 0;
     38 
     39 class C {
     40    static async *#gen() {
     41        callCount += 1;
     42        return {
     43             ...(function() {
     44                var yield;
     45                throw new Test262Error();
     46             }()),
     47          }
     48    }
     49    static get gen() { return this.#gen; }
     50 }
     51 
     52 // Test the private fields do not appear as properties before set to value
     53 assert(
     54  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     55  "#gen does not appear as an own property on C prototype"
     56 );
     57 assert(
     58  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     59  "#gen does not appear as an own property on C constructor"
     60 );
     61 
     62 var iter = C.gen();
     63 
     64 
     65 
     66 assert.sameValue(callCount, 1);
     67 
     68 // Test the private fields do not appear as properties after set to value
     69 assert(
     70  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     71  "#gen does not appear as an own property on C prototype"
     72 );
     73 assert(
     74  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     75  "#gen does not appear as an own property on C constructor"
     76 );