text: // Copyright (C) 2015 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  description: >
      Behavior when error thrown while setting `lastIndex` after a "global" match
      success
  es6id: 21.2.5.6
  info: >
      [...]
      5. Let global be ToBoolean(Get(rx, "global")).
      6. ReturnIfAbrupt(global).
      7. If global is false, then
         a. Return RegExpExec(rx, S).
  
      21.2.5.2.1 Runtime Semantics: RegExpExec ( R, S )
  
      [...]
      7. Return RegExpBuiltinExec(R, S).
  
      21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S )
  
      [...]
      18. If global is true or sticky is true,
          a. Let setStatus be Set(R, "lastIndex", e, true).
          b. ReturnIfAbrupt(setStatus).
  features: [Symbol.match]
  ---*/
  
  var r = /b/;
  var callCount = 0;
  
  Object.defineProperty(r, 'lastIndex', { writable: false });
  Object.defineProperty(r, 'global', {
    get: function() {
      callCount += 1;
      return callCount > 1;
    }
  });
  
  assert.throws(TypeError, function() {
    r[Symbol.match]('abc');
  });
  