redeclaration-of-catch-warning.js

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// |reftest| skip-if(!xulRuntime.shell)

//

// Any copyright is dedicated to the Public Domain.

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

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

var BUGNUMBER = 622646;

var summary = "Shadowing an exception identifier in a catch block with a " +

              "|const| or |let| declaration should throw an error";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

function assertRedeclarationErrorThrown(expression)

  "use strict";

try

    evaluate(expression);

    throw new Error("Redeclaration error wasn't thrown");

  catch(e)

    assertEq(e.message.indexOf("catch") > 0, true,

             "wrong error, got " + e.message);

assertRedeclarationErrorThrown("try {} catch(e) { const e = undefined; }");

assertRedeclarationErrorThrown("try {} catch(e) { let e; }");

if (typeof reportCompare === "function")

  reportCompare(true, true);