delete-name-parenthesized-early-error-strict-mode.js

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// Any copyright is dedicated to the Public Domain.

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

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

var BUGNUMBER = 1111101;

var summary =

  "delete (foo), delete ((foo)), and so on are strict mode early errors";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

function checkSyntaxError(code)

  function helper(maker)

    var earlyError = false;

try

      var f = maker(code);

      var error = "no early error, created a function with code <" + code + ">";

try

        f();

        error += ", and the function can be called without error";

      catch (e)

        error +=", and calling the function throws " + e;

      throw new Error(error);

    catch (e)

      assertEq(e instanceof SyntaxError, true,

               "expected syntax error, got " + e);

  helper(Function);

  helper(eval);

checkSyntaxError("function f() { 'use strict'; delete escape; } f();");

checkSyntaxError("function f() { 'use strict'; delete escape; }");

checkSyntaxError("function f() { 'use strict'; delete (escape); } f();");

checkSyntaxError("function f() { 'use strict'; delete (escape); }");

checkSyntaxError("function f() { 'use strict'; delete ((escape)); } f();");

checkSyntaxError("function f() { 'use strict'; delete ((escape)); }");

// Meanwhile, non-strict all of these should work

function checkFine(code)

  Function(code);

  (1, eval)(code); // indirect, to be consistent w/above

checkFine("function f() { delete escape; } f();");

checkFine("function f() { delete escape; }");

checkFine("function f() { delete (escape); } f();");

checkFine("function f() { delete (escape); }");

checkFine("function f() { delete ((escape)); } f();");

checkFine("function f() { delete ((escape)); }");

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");