tor-browser

The Tor Browser
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gen-yield-identifier-spread-strict-strict.js (1082B)

      1 // |reftest| error:SyntaxError
      2 'use strict';
      3 // This file was procedurally generated from the following sources:
      4 // - src/generators/yield-identifier-spread-strict.case
      5 // - src/generators/default/obj-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. (Generator method)
      8 esid: prod-GeneratorMethod
      9 features: [object-spread, generators]
     10 flags: [generated, onlyStrict]
     11 negative:
     12  phase: parse
     13  type: SyntaxError
     14 info: |
     15    14.4 Generator Function Definitions
     16 
     17    GeneratorMethod[Yield, Await]:
     18      * PropertyName[?Yield, ?Await] ( UniqueFormalParameters[+Yield, ~Await] ) { GeneratorBody }
     19 
     20 
     21    Spread Properties
     22 
     23    PropertyDefinition[Yield]:
     24      (...)
     25      ...AssignmentExpression[In, ?Yield]
     26 
     27 ---*/
     28 $DONOTEVALUATE();
     29 
     30 var callCount = 0;
     31 
     32 var gen = {
     33  *method() {
     34    callCount += 1;
     35    return {
     36         ...(function() {
     37            var yield;
     38            throw new Test262Error();
     39         }()),
     40      }
     41  }
     42 }.method;
     43 
     44 var iter = gen();
     45 
     46 
     47 
     48 assert.sameValue(callCount, 1);