text: // Copyright 2009 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
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  // Test handling of const variables in various settings.
  
  (function () {
    function f() {
      function g() {
        x = 42;  //  should be ignored
        return x;  // force x into context
      }
      x = 43;  // should be ignored
      assertEquals(undefined, g());
      x = 44;  // should be ignored
      const x = 0;
      x = 45;  // should be ignored
      assertEquals(0, g());
    }
    f();
  })();
  
  
  (function () {
    function f() {
      function g() {
        with ({foo: 0}) {
          x = 42;  //  should be ignored
          return x;  // force x into context
        }
      }
      x = 43;  // should be ignored
      assertEquals(undefined, g());
      x = 44;  // should be ignored
      const x = 0;
      x = 45;  // should be ignored
      assertEquals(0, g());
    }
    f();
  })();
  
  
  (function () {
    function f() {
      function g(s) {
        eval(s);
        return x;  // force x into context
      }
      x = 43;  // should be ignored
      assertEquals(undefined, g("x = 42;"));
      x = 44;  // should be ignored
      const x = 0;
      x = 45;  // should be ignored
      assertEquals(0, g("x = 46;"));
    }
    f();
  })();
  
  
  (function () {
    function f() {
      function g(s) {
        with ({foo: 0}) {
          eval(s);
          return x;  // force x into context
        }
      }
      x = 43;  // should be ignored
      assertEquals(undefined, g("x = 42;"));
      x = 44;  // should be ignored
      const x = 0;
      x = 45;  // should be ignored
      assertEquals(0, g("x = 46;"));
    }
    f();
  })();
  
  
  (function () {
    function f(s) {
      function g() {
        x = 42;  // assign to global x, or to const x
        return x;
      }
      x = 43;  // declare global x
      assertEquals(42, g());
      x = 44;  // assign to global x
      eval(s);
      x = 45;  // should be ignored (assign to const x)
      assertEquals(0, g());
    }
    f("const x = 0;");
  })();
  
  
  (function () {
    function f(s) {
      function g() {
        with ({foo: 0}) {
          x = 42;  // assign to global x, or to const x
          return x;
        }
      }
      x = 43;  // declare global x
      assertEquals(42, g());
      x = 44;  // assign to global x
      eval(s);
      x = 45;  // should be ignored (assign to const x)
      assertEquals(0, g());
    }
    f("const x = 0;");
  })();
  
  
  (function () {
    function f(s) {
      function g(s) {
        eval(s);
        return x;
      }
      x = 43;  // declare global x
      assertEquals(42, g("x = 42;"));
      x = 44;  // assign to global x
      eval(s);
      x = 45;  // should be ignored (assign to const x)
      assertEquals(0, g("x = 46;"));
    }
    f("const x = 0;");
  })();
  
  
  (function () {
    function f(s) {
      function g(s) {
        with ({foo: 0}) {
          eval(s);
          return x;
        }
      }
      x = 43;  // declare global x
      assertEquals(42, g("x = 42;"));
      x = 44;  // assign to global x
      eval(s);
      x = 45;  // should be ignored (assign to const x)
      assertEquals(0, g("x = 46;"));
    }
    f("const x = 0;");
  })();
  