Added ability to remove prototype from function. In this case, [[Construct]] ...

test/mjsunit/function-without-prototype.js

+// Copyright 2008 the V8 project authors. All rights reserved.

[Mads Ager (chromium), 2010/04/28 10:40:04]

2010

[dgozman, 2010/04/28 11:16:59]

Done.

+// 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.
+
+// Tests that function does not have prototype.
+function testPrototype(f) {
+  assertFalse('prototype' in f);
+  assertEquals(undefined, f.prototype);
+  f.prototype = 42;
+  assertEquals(42, f.prototype);
+  assertTrue('prototype' in f);
+}
+
+// Tests that construction from function throws.
+function testConstruction(name) {
+  assertThrows("new " + name + "()");
+  eval(name + ".prototype = 42;");
+  assertThrows("new " + name + "()");
+}
+
+testPrototype(eval);
+testPrototype(Array.prototype.push);
+testPrototype(Function.prototype.call);
+testPrototype(String.fromCharCode);
+var date = new Date();
+testPrototype(date.toString);
+
+testConstruction("parseInt");
+testConstruction("Function.prototype.apply");
+var regexp = /abc/g;
+testConstruction("regexp.test");