Ensure correct boxing of values when calling functions on them...

test/mjsunit/value-wrapper.js

+// Copyright 2008 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.
+
+// When calling user-defined functions on strings, booleans or
+// numbers, we should create a wrapper object.
+
+function RunTests() {
+  for (var i = 0; i < 10; i++) {
+    assertEquals('object', 'xxx'.TypeOfThis());
+    assertEquals('object', true.TypeOfThis(2,3));
+    assertEquals('object', false.TypeOfThis());
+    assertEquals('object', (42).TypeOfThis());
+    assertEquals('object', (3.14).TypeOfThis());
+  }
+  
+  for (var i = 0; i < 10; i++) {
+    assertEquals('object', 'xxx'['TypeOfThis']());
+    assertEquals('object', true['TypeOfThis']());
+    assertEquals('object', false['TypeOfThis']());
+    assertEquals('object', (42)['TypeOfThis']());
+    assertEquals('object', (3.14)['TypeOfThis']());
+  }
+  
+  function CallTypeOfThis(obj) {
+    assertEquals('object', obj.TypeOfThis());
+  }
+  
+  for (var i = 0; i < 10; i++) {
+    CallTypeOfThis('xxx');
+    CallTypeOfThis(true);
+    CallTypeOfThis(false);
+    CallTypeOfThis(42);
+    CallTypeOfThis(3.14);
+  }
+  
+  function TestWithWith(obj) {
+    with (obj) {
+      for (var i = 0; i < 10; i++) {
+        assertEquals('object', TypeOfThis());
+      }
+    }
+  }
+  
+  TestWithWith('xxx');
+  TestWithWith(true);
+  TestWithWith(false);
+  TestWithWith(42);
+  TestWithWith(3.14);
+  
+  for (var i = 0; i < 10; i++) {
+    assertEquals('object', true[7]());
+    assertEquals('object', false[7]());
+    assertEquals('object', (42)[7]());
+    assertEquals('object', (3.14)[7]());
+  }
+}
+
+function TypeOfThis() { return typeof this; }
+
+// Test with normal setup of prototype. 
+String.prototype.TypeOfThis = TypeOfThis;
+Boolean.prototype.TypeOfThis = TypeOfThis;
+Number.prototype.TypeOfThis = TypeOfThis;
+Boolean.prototype[7] = TypeOfThis;
+Number.prototype[7] = TypeOfThis;
+  
+
+RunTests();
+
+// Run test after properties have been set to a different value.
+String.prototype.TypeOfThis = 'x';
+Boolean.prototype.TypeOfThis = 'x';
+Number.prototype.TypeOfThis = 'x';
+Boolean.prototype[7] = 'x';
+Number.prototype[7] = 'x';
+
+String.prototype.TypeOfThis = TypeOfThis;
+Boolean.prototype.TypeOfThis = TypeOfThis;
+Number.prototype.TypeOfThis = TypeOfThis;
+Boolean.prototype[7] = TypeOfThis;
+Number.prototype[7] = TypeOfThis;
+
+RunTests();
+
+// Force the prototype into slow case and run the test again.
+delete String.prototype.TypeOfThis;
+delete Boolean.prototype.TypeOfThis;
+delete Number.prototype.TypeOfThis;
+Boolean.prototype[7];
+Number.prototype[7];
+
+String.prototype.TypeOfThis = TypeOfThis;
+Boolean.prototype.TypeOfThis = TypeOfThis;
+Number.prototype.TypeOfThis = TypeOfThis;
+Boolean.prototype[7] = TypeOfThis;
+Number.prototype[7] = TypeOfThis;
+
+RunTests();
+
+// According to ES3 15.3.4.3 the this value passed to Function.prototyle.apply

[Mads Ager (chromium), 2010/01/19 07:28:58]

prototyle -> prototype

+// should wrapped. According to ES5 it should not.
+assertEquals('object', TypeOfThis.apply('xxx', []));
+assertEquals('object', TypeOfThis.apply(true, []));
+assertEquals('object', TypeOfThis.apply(false, []));
+assertEquals('object', TypeOfThis.apply(42, []));
+assertEquals('object', TypeOfThis.apply(3.14, []));
+
+// According to ES3 15.3.4.3 the this value passed to Function.prototyle.call
+// should wrapped. According to ES5 it should not.
+assertEquals('object', TypeOfThis.call('xxx'));
+assertEquals('object', TypeOfThis.call(true));
+assertEquals('object', TypeOfThis.call(false));
+assertEquals('object', TypeOfThis.call(42));
+assertEquals('object', TypeOfThis.call(3.14));