for-inof-loop-const-declaration.js

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/*

 * Any copyright is dedicated to the Public Domain.

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

*/

var gTestfile = "for-inof-loop-const-declaration.js";

var BUGNUMBER = 1278150;

var summary = "Support const declarations in for-of loop heads";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

var count;

count = 0;

for (const x in "abcdef")

  assertEq(x, "" + count++);

try

    x = 3;

    throw new Error("didn't throw");

  catch (e)

    assertEq(e instanceof TypeError, true,

             "didn't get a TypeError, instead got: " + e);

count = 0;

for (const x of "012345")

  assertEq(x, "" + count++);

try

    x = 3;

    throw new Error("didn't throw");

  catch (e)

    assertEq(e instanceof TypeError, true,

             "didn't get a TypeError, instead got: " + e);

count = 0;

for (const { length, 0: c } in "abcdef")

  assertEq(length, 1);

  assertEq(c, "" + count++);

try

    length = 1;

    throw new Error("didn't throw");

  catch (e)

    assertEq(e instanceof TypeError, true,

             "didn't get a TypeError, instead got: " + e);

count = 0;

for (const { length, 0: c } of "012345")

  assertEq(length, 1);

  assertEq(c, "" + count++);

try

    c = 42;

    throw new Error("didn't throw");

  catch (e)

    assertEq(e instanceof TypeError, true,

             "didn't get a TypeError, instead got: " + e);

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");