this-for-function-expression-recursion.js

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/*

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/licenses/publicdomain/

*/

var gTestfile = 'this-for-function-expression-recursion.js';

var BUGNUMBER = 611276;

var summary = "JSOP_CALLEE should push undefined, not null, for this";

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

// Calling a named function expression (not function statement) uses the

// JSOP_CALLEE opcode.  This opcode pushes its own |this|, distinct from the

// normal call path; verify that that |this| value is properly |undefined|.

var calleeThisFun =

  function calleeThisFun(recurring)

    if (recurring)

      return this;

    return calleeThisFun(true);

};

assertEq(calleeThisFun(false), this);

var calleeThisStrictFun =

  function calleeThisStrictFun(recurring)

    "use strict";

    if (recurring)

      return this;

    return calleeThisStrictFun(true);

};

assertEq(calleeThisStrictFun(false), undefined);

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("All tests passed!");