org.mozilla.javascript.ContextAction Java Examples

private void testWithTwoScopes(final String scriptScope1,
                               final String scriptScope2)
{
	final ContextAction action = new ContextAction()
	{
		public Object run(final Context cx)
		{
	        final Scriptable scope1 = cx.initStandardObjects(
	            new MySimpleScriptableObject("scope1"));
	        final Scriptable scope2 = cx.initStandardObjects(
	            new MySimpleScriptableObject("scope2"));
	        cx.evaluateString(scope2, scriptScope2, "source2", 1, null);

	        scope1.put("scope2", scope1, scope2);

	        return cx.evaluateString(scope1, scriptScope1, "source1", 1,
	                                 null);
		}
	};
	Utils.runWithAllOptimizationLevels(action);
}
 

public VMVariable[] getVariables( )
{
	// TODO ensure current context
	return (VMVariable[]) Context.call( new ContextAction( ) {

		public Object run( Context arg0 )
		{
			try
			{
				return getVariablesImpl( arg0 );
			}
			catch ( Exception e )
			{
				StringWriter sw = new StringWriter( );
				e.printStackTrace( new PrintWriter( sw ) );

				return new VMVariable[]{
					new JsVariable( sw.toString( ),
							ERROR_LITERAL,
							EXCEPTION_TYPE )
				};
			}
		}

	} );
}
 

public VMVariable[] getMembers( )
{
	return (VMVariable[]) Context.call( new ContextAction( ) {

		public Object run( Context arg0 )
		{
			try
			{
				return getMembersImpl( arg0 );
			}
			catch ( Exception e )
			{
				StringWriter sw = new StringWriter( );
				e.printStackTrace( new PrintWriter( sw ) );

				return new VMVariable[]{
					new JsVariable( sw.toString( ),
							ERROR_LITERAL,
							EXCEPTION_TYPE )
				};
			}
		}

	} );
}
 

private void runWithExpectedStackTrace(final String _source, final String _expectedStackTrace)
{
       final ContextAction action = new ContextAction() {
       	public Object run(Context cx) {
       		final Scriptable scope = cx.initStandardObjects();
       		try {
       			cx.evaluateString(scope, _source, "test.js", 0, null);
       		}
       		catch (final JavaScriptException e)
       		{
       			assertEquals(_expectedStackTrace, e.getScriptStackTrace());
       			return null;
       		}
       		throw new RuntimeException("Exception expected!");
       	}
       };
       Utils.runWithOptimizationLevel(action, -1);
}
 

/**
 * ECMA 11.4.3 says that typeof on host object is Implementation-dependent
 */
public void test0() throws Exception
{
       final Function f = new BaseFunction()
       {
       	@Override
       	public Object call(Context _cx, Scriptable _scope, Scriptable _thisObj,
       			Object[] _args)
       	{
       		return _args[0].getClass().getName();
       	}
       };
	final ContextAction action = new ContextAction()
	{
		public Object run(final Context context)
		{
			final Scriptable scope = context.initStandardObjects();
			scope.put("myObj", scope, f);
			return context.evaluateString(scope, "typeof myObj", "test script", 1, null);
		}
	};
	doTest("function", action);
}
 

@Test
public void callOverloadedFunction() {
    new ContextFactory().call(new ContextAction() {
        public Object run(Context cx) {
            cx.getWrapFactory().setJavaPrimitiveWrap(false);
            Assert.assertEquals("string[]", cx.evaluateString(
                    cx.initStandardObjects(),
                    "new org.mozilla.javascript.tests.Bug496585Test().method('one', 'two', 'three')",
                    "<test>", 1, null));
            Assert.assertEquals("string+function", cx.evaluateString(
                cx.initStandardObjects(),
                "new org.mozilla.javascript.tests.Bug496585Test().method('one', function() {})",
                "<test>", 1, null));
            return null;
        }
    });
}
 

public void testArrayConcat() {
final String script = "var a = ['a0', 'a1'];\n"
	+ "a[3] = 'a3';\n"
	+ "var b = ['b1', 'b2'];\n"
	+ "b.concat(a)";

final ContextAction action = new ContextAction()
{
	public Object run(final Context _cx)
	{
		final ScriptableObject scope = _cx.initStandardObjects();
		final Object result = _cx.evaluateString(scope, script, "test script", 0, null);
		assertEquals("b1,b2,a0,a1,,a3", Context.toString(result));
		return null;
	}
};

Utils.runWithAllOptimizationLevels(action);
  }
 

public void testIt()
{
	final String script = "var fn = function() { return this; }\n"
		+ "fn.apply(1)";

	final ContextAction action = new ContextAction()
	{
		public Object run(final Context _cx)
		{
			final ScriptableObject scope = _cx.initStandardObjects();
			final Object result = _cx.evaluateString(scope, script, "test script", 0, null);
			assertEquals("object", ScriptRuntime.typeof(result));
			assertEquals("1", Context.toString(result));
			return null;
		}
	};
	Utils.runWithAllOptimizationLevels(action);
}
 

/**
 * delete should not delete anything in the prototype chain.
 */
@Test
public void testDeletePropInPrototype() throws Exception {
	final String script = "Array.prototype.foo = function() {};\n"
		+ "Array.prototype[1] = function() {};\n"
		+ "var t = [];\n"
		+ "[].foo();\n"
		+ "for (var i in t) delete t[i];\n"
		+ "[].foo();\n"
		+ "[][1]();\n";

	final ContextAction action = new ContextAction()
	{
		public Object run(final Context _cx)
		{
			final ScriptableObject scope = _cx.initStandardObjects();
			final Object result = _cx.evaluateString(scope, script, "test script", 0, null);
			return null;
		}
	};

	Utils.runWithAllOptimizationLevels(action);
}
 

private void testWithTwoScopes(final String scriptScope1,
                               final String scriptScope2)
{
	final ContextAction action = new ContextAction()
	{
		public Object run(final Context cx)
		{
	        final Scriptable scope1 = cx.initStandardObjects(
	            new MySimpleScriptableObject("scope1"));
	        final Scriptable scope2 = cx.initStandardObjects(
	            new MySimpleScriptableObject("scope2"));
	        cx.evaluateString(scope2, scriptScope2, "source2", 1, null);

	        scope1.put("scope2", scope1, scope2);

	        return cx.evaluateString(scope1, scriptScope1, "source1", 1,
	                                 null);
		}
	};
	Utils.runWithAllOptimizationLevels(action);
}
 

private Scriptable optionsAsJavaScriptObject(final Map<String, Object> options)
{
	return (Scriptable) contextFactory.call(new ContextAction()
	{
		public Object run(Context cx)
		{
			Scriptable opts = cx.newObject(scope);
			for (Map.Entry<String, Object> entry : options.entrySet())
			{
				String key = entry.getKey();
				Object value = javaToJS(entry.getValue(), opts);
				opts.put(key, opts, value);
			}
			return opts;
		}
	});
}
 

private void runWithExpectedStackTrace(final String _source, final String _expectedStackTrace)
{
       final ContextAction action = new ContextAction() {
       	public Object run(Context cx) {
       		final Scriptable scope = cx.initStandardObjects();
       		try {
       			cx.evaluateString(scope, _source, "test.js", 0, null);
       		}
       		catch (final JavaScriptException e)
       		{
       			assertEquals(_expectedStackTrace, e.getScriptStackTrace());
       			return null;
       		}
       		throw new RuntimeException("Exception expected!");
       	}
       };
       Utils.runWithOptimizationLevel(action, -1);
}
 

public void testArrayConcat() {
final String script = "var a = ['a0', 'a1'];\n"
	+ "a[3] = 'a3';\n"
	+ "var b = ['b1', 'b2'];\n"
	+ "b.concat(a)";

final ContextAction action = new ContextAction()
{
	public Object run(final Context _cx)
	{
		final ScriptableObject scope = _cx.initStandardObjects();
		final Object result = _cx.evaluateString(scope, script, "test script", 0, null);
		assertEquals("b1,b2,a0,a1,,a3", Context.toString(result));
		return null;
	}
};

Utils.runWithAllOptimizationLevels(action);
  }
 

@Test
public void callOverloadedFunction() {
    new AndroidContextFactory(new File(System.getProperty("java.io.tmpdir", "."), "classes")).call(new ContextAction() {
        public Object run(Context cx) {
            cx.getWrapFactory().setJavaPrimitiveWrap(false);
            Assert.assertEquals("string[]", cx.evaluateString(
                    cx.initStandardObjects(),
                    "new org.mozilla.javascript.tests.Bug496585Test().method('one', 'two', 'three')",
                    "<test>", 1, null));
            Assert.assertEquals("string+function", cx.evaluateString(
                cx.initStandardObjects(),
                "new org.mozilla.javascript.tests.Bug496585Test().method('one', function() {})",
                "<test>", 1, null));
            return null;
        }
    });
}
 

/**
 * delete should not delete anything in the prototype chain.
 */
@Test
public void testDeletePropInPrototype() throws Exception {
	final String script = "Array.prototype.foo = function() {};\n"
		+ "Array.prototype[1] = function() {};\n"
		+ "var t = [];\n"
		+ "[].foo();\n"
		+ "for (var i in t) delete t[i];\n"
		+ "[].foo();\n"
		+ "[][1]();\n";

	final ContextAction action = new ContextAction()
	{
		public Object run(final Context _cx)
		{
			final ScriptableObject scope = _cx.initStandardObjects();
			final Object result = _cx.evaluateString(scope, script, "test script", 0, null);
			return null;
		}
	};

	Utils.runWithAllOptimizationLevels(action);
}
 

public void testIt()
{
	final String script = "var fn = function() { return this; }\n"
		+ "fn.apply(1)";

	final ContextAction action = new ContextAction()
	{
		public Object run(final Context _cx)
		{
			final ScriptableObject scope = _cx.initStandardObjects();
			final Object result = _cx.evaluateString(scope, script, "test script", 0, null);
			assertEquals("object", ScriptRuntime.typeof(result));
			assertEquals("1", Context.toString(result));
			return null;
		}
	};
	Utils.runWithAllOptimizationLevels(action);
}
 

/**
 * ECMA 11.4.3 says that typeof on host object is Implementation-dependent
 */
public void test0() throws Exception
{
       final Function f = new BaseFunction()
       {
       	@Override
       	public Object call(Context _cx, Scriptable _scope, Scriptable _thisObj,
       			Object[] _args)
       	{
       		return _args[0].getClass().getName();
       	}
       };
	final ContextAction action = new ContextAction()
	{
		public Object run(final Context context)
		{
			final Scriptable scope = context.initStandardObjects();
			scope.put("myObj", scope, f);
			return context.evaluateString(scope, "typeof myObj", "test script", 1, null);
		}
	};
	doTest("function", action);
}
 

private void doTest(final String expectedName, final String scriptName)
    throws Exception
{
    final Script script = (Script) ContextFactory.getGlobal().call(
      new ContextAction() {
        public Object run(final Context context) {
          return context.compileString("var f = 1", scriptName, 1, null);
        }
      });

    // remove serial number
    String name = script.getClass().getSimpleName();
    assertEquals(expectedName, name.substring(0, name.lastIndexOf('_')));
}
 

/**
 * As of head of trunk on 30.09.09, decompile of "new Date()" returns "new Date" without parentheses.
 * @see <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=519692">Bug 519692</a>
 */
@Test
public void newObject0Arg()
{
	final String source = "var x = new Date().getTime();";
	final ContextAction action = new ContextAction() {
		public Object run(final Context cx) {
			final Script script = cx.compileString(source, "my script", 0, null);
			Assert.assertEquals(source, cx.decompileScript(script, 4).trim());
			return null;
		}
	};
	Utils.runWithAllOptimizationLevels(action);
}
 

private Object runScript(final String scriptSourceText) {
  return this.contextFactory.call(new ContextAction() {
    public Object run(Context context) {
        return context.evaluateString(global, scriptSourceText,
                "test source", 1, null);
    }
  });
}
 

/**
 * As of head of trunk on 30.09.09, decompile of "new Date()" returns "new Date" without parentheses.
 * @see <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=519692">Bug 519692</a>
 */
@Test
public void newObject0Arg()
{
	final String source = "var x = new Date().getTime();";
	final ContextAction action = new ContextAction() {
		public Object run(final Context cx) {
			final Script script = cx.compileString(source, "my script", 0, null);
			Assert.assertEquals(source, cx.decompileScript(script, 4).trim());
			return null;
		}
	};
	Utils.runWithAllOptimizationLevels(action);
}
 

private void assertEvaluates(final Object expected, final String source) {
    final ContextAction action = new ContextAction() {
        public Object run(Context cx) {
            final Scriptable scope = cx.initStandardObjects();
            final Object rep = cx.evaluateString(scope, source, "test.js",
                    0, null);
            assertEquals(expected, rep);
            return null;
        }
    };
    Utils.runWithAllOptimizationLevels(action);
}
 

private void testCustomizeTypeOf(final String expected, final Scriptable obj)
{
	final ContextAction action = new ContextAction()
	{
		public Object run(final Context context)
		{
			final Scriptable scope = context.initStandardObjects();
			scope.put("myObj", scope, obj);
			return context.evaluateString(scope, "typeof myObj", "test script", 1, null);
		}
	};
	doTest(expected, action);
}
 

private void doTest(String expected, final String script)
{
	final ContextAction action = new ContextAction()
	{
		public Object run(final Context context)
		{
			final Scriptable scope = context.initStandardObjects();
			return context.evaluateString(scope, script, "test script", 1, null);
		}
	};
	doTest(expected, action);
}
 

private void doTest(final int optimizationLevel, final String expected, final ContextAction action)
{
	Object o = new ContextFactory().call(new ContextAction()
		{
			public Object run(final Context context)
			{
				context.setOptimizationLevel(optimizationLevel);
				return Context.toString(action.run(context));
			}
		});
	assertEquals(expected, o);
}
 

private Object runScript(final String scriptSourceText) {
  return this.contextFactory.call(new ContextAction() {
    public Object run(Context context) {
        return context.evaluateString(global, scriptSourceText,
                "test source", 1, null);
    }
  });
}
 

private Object runScript(final String scriptSourceText) {
  return contextFactory.call(new ContextAction() {
    public Object run(Context context) {
      Script script = context.compileString(scriptSourceText, "", 1, null);
      return script.exec(context, global);
    }
  });
}
 

private void assertEvaluates(final Object expected, final String source) {
    final ContextAction action = new ContextAction() {
        public Object run(Context cx) {
            final Scriptable scope = cx.initStandardObjects();
            final Object rep = cx.evaluateString(scope, source, "test.js",
                    0, null);
            assertEquals(expected, rep);
            return null;
        }
    };
    Utils.runWithAllOptimizationLevels(action);
}
 

/**
 * Runs the action successively with all available optimization levels
 */
public static void runWithAllOptimizationLevels(final ContextAction action)
{
	runWithOptimizationLevel(action, -1);
	runWithOptimizationLevel(action, 0);
	runWithOptimizationLevel(action, 1);
}
 

/**
 * Runs the action successively with all available optimization levels
 */
public static void runWithAllOptimizationLevels(final ContextFactory contextFactory, final ContextAction action)
{
	runWithOptimizationLevel(contextFactory, action, -1);
	runWithOptimizationLevel(contextFactory, action, 0);
	runWithOptimizationLevel(contextFactory, action, 1);
}