parenthesized-eval-is-direct.js

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// Any copyright is dedicated to the Public Domain.

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

//-----------------------------------------------------------------------------

print("(eval)(...) is a direct eval, (1, eval)() isn't, etc.");

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

 * BEGIN TEST *

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

/*

 * Justification:

 *   https://mail.mozilla.org/pipermail/es5-discuss/2010-October/003724.html

 * Note also bug 537673.

*/

var t = "global";

function group()

  var t = "local";

  return (eval)("t");

assertEq(group(), "local");

function groupAndComma()

  var t = "local";

  return (1, eval)("t");

assertEq(groupAndComma(), "global");

function groupAndTrueTernary()

  var t = "local";

  return (true ? eval : null)("t");

assertEq(groupAndTrueTernary(), "global");

function groupAndEmptyStringTernary()

  var t = "local";

  return ("" ? null : eval)("t");

assertEq(groupAndEmptyStringTernary(), "global");

function groupAndZeroTernary()

  var t = "local";

  return (0 ? null : eval)("t");

assertEq(groupAndZeroTernary(), "global");

function groupAndNaNTernary()

  var t = "local";

  return (0 / 0 ? null : eval)("t");

assertEq(groupAndNaNTernary(), "global");

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("All tests passed!");