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Edit File: argument-named-arguments.js

// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
//     * Neither the name of Google Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Tests to verify proper arguments handling if the arguments
// variable is declared as a parameter or local variable.

function e(a) {
  assertEquals(9, a.length);
  assertEquals("arguments", a);
};

e("arguments");

function f(arguments) {
  assertEquals(9, arguments.length);
  assertEquals("arguments", arguments);
};

f("arguments");

function g(x) {
  var arguments;
  assertEquals("arguments", x);
  assertEquals(1, arguments.length);
  assertEquals("[object Arguments]", '' + arguments);
};

g("arguments");

function h(x) {
  assertEquals("arguments", x);
  assertEquals(1, arguments.length);
  assertEquals("[object Arguments]", '' + arguments);
  var arguments = "foobar";
  assertEquals("arguments", x);
  assertEquals(6, arguments.length);
  assertEquals("foobar", '' + arguments);
};

h("arguments");

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