2.1/user/test/com/google/gwt/dev/jjs/test/MemberShadowingTest.java

/*
 * Copyright 2007 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.dev.jjs.test;

import com.google.gwt.junit.client.GWTTestCase;

/**
 * Tests that field and method shadowing works correctly in hosted and web
 * modes.
 * 
 * NOTE: Also tests that the {@link CompilingClassLoader} can resolve binary and
 * source level class names inside of JSNI Java member references. Where should
 * this really go?
 */
public class MemberShadowingTest extends GWTTestCase {
  /**
   * TODO: document me.
   */
  public class Subclass extends Superclass {
    public int getSubclassA() {
      return a;
    }

    public void setSubclassA(int a) {
      this.a = a;
    }

    private void foo() {
      fail("MemberShadowingTest.Subclass.foo() called instead of MemberShadowingTest.Superclass.foo()");
    }

    public native void callShadowedMethod() /*-{
     this.@com.google.gwt.dev.jjs.test.MemberShadowingTest$Superclass::foo()();
     }-*/;

    public int a;
  }

  /**
   * TODO: document me.
   */
  public class Superclass {
    public native int getSuperclassA() /*-{
     return this.@com.google.gwt.dev.jjs.test.MemberShadowingTest.Superclass::a;
     }-*/;

    public void setSuperclassA(int a) {
      this.a = a;
    }

    private void foo() {
      /*
       * if the method that this one shadows is called the test will fail
       * otherwise if we get here we are good
       */
    }

    public int a;
  }

  /**
   * TODO: document me.
   */
  public static interface Foo {
    void f();
  }

  public String getModuleName() {
    return "com.google.gwt.dev.jjs.CompilerSuite";
  }

  public void testFieldShadowing() {
    Subclass s1 = new Subclass();

    s1.setSuperclassA(1);
    s1.setSubclassA(2);

    assertEquals(s1.getSuperclassA(), 1);
  }

  public void testMethodShadowing() {
    Subclass s1 = new Subclass();

    s1.callShadowedMethod();
  }
}