org.eclipse.jdt.compiler.apt.tests/processors8/org/eclipse/jdt/compiler/apt/tests/processors/elements/Java13ElementProcessor.java - jdt/eclipse.jdt.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2019 IBM Corporation.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.jdt.compiler.apt.tests.processors.elements;

 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

 import javax.annotation.processing.Filer;
 import javax.annotation.processing.Messager;
 import javax.annotation.processing.ProcessingEnvironment;
 import javax.annotation.processing.RoundEnvironment;
 import javax.annotation.processing.SupportedAnnotationTypes;
 import javax.annotation.processing.SupportedSourceVersion;
 import javax.lang.model.SourceVersion;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.Modifier;
 import javax.lang.model.element.ModuleElement;
 import javax.lang.model.element.PackageElement;
 import javax.lang.model.element.TypeElement;

 import org.eclipse.jdt.internal.compiler.apt.dispatch.BaseProcessingEnvImpl;
 import org.eclipse.jdt.compiler.apt.tests.processors.base.BaseProcessor;

 /**
  * A processor that explores the java 13 specific elements and validates the lambda and
  * type annotated elements. To enable this processor, add
  * -Aorg.eclipse.jdt.compiler.apt.tests.processors.elements.Java11ElementProcessor to the command line.
  * @since 3.14
  */
 @SupportedAnnotationTypes("*")
 @SupportedSourceVersion(SourceVersion.RELEASE_8)
 public class Java13ElementProcessor extends BaseProcessor {
 	boolean reportSuccessAlready = true;
 	RoundEnvironment roundEnv = null;
 	Messager _messager = null;
 	Filer _filer = null;
 	boolean isBinaryMode = false;
 	String mode;
 	@Override
 	public synchronized void init(ProcessingEnvironment processingEnv) {
 		super.init(processingEnv);
 		_elementUtils = processingEnv.getElementUtils();
 		_messager = processingEnv.getMessager();
 		_filer = processingEnv.getFiler();
 	}
 	// Always return false from this processor, because it supports "*".
 	// The return value does not signify success or failure!
 	@Override
 	public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
 		if (roundEnv.processingOver()) {
 			return false;
 		}

 		this.roundEnv = roundEnv;
 		Map<String, String> options = processingEnv.getOptions();
 		if (!options.containsKey(this.getClass().getName())) {
 			// Disable this processor unless we are intentionally performing the test.
 			return false;
 		} else {
 			try {
 				if (options.containsKey("binary")) {
 					this.isBinaryMode = true;
 					this.mode = "binary";
 				} else {
 					this.mode = "source";
 				}
 				if (!invokeTestMethods(options)) {
 					testAll();
 				}
 				if (this.reportSuccessAlready) {
 					super.reportSuccess();
 				}
 			} catch (AssertionFailedError e) {
 				super.reportError(getExceptionStackTrace(e));
 			} catch (Throwable e) {
 				e.printStackTrace();
 			}
 		}
 		return false;
 	}

 	private boolean invokeTestMethods(Map<String, String> options) throws Throwable {
 		Method testMethod = null;
 		Set<String> keys = options.keySet();
 		boolean testsFound = false;
 		for (String option : keys) {
 			if (option.startsWith("test")) {
 				try {
 					testMethod = this.getClass().getDeclaredMethod(option, new Class[0]);
 					if (testMethod != null) {
 						testsFound = true;
 						testMethod.invoke(this,  new Object[0]);
 					}
 				} catch (InvocationTargetException e) {
 					throw e.getCause();
 				} catch (Exception e) {
 					super.reportError(getExceptionStackTrace(e));
 				}
 			}
 		}
 		return testsFound;
 	}

 	public void testAll() throws AssertionFailedError, IOException {
 		testPreviewFlagTrue();
 		testPreviewFlagFalse();
 	}

 	public void testPreviewFlagTrue() throws IOException {
 		if (this.processingEnv instanceof BaseProcessingEnvImpl) {
 			boolean preview = ((BaseProcessingEnvImpl) this.processingEnv).isPreviewEnabled();
 			assertTrue("Preview flag not seen as enabled", preview);
 		}
 	}
 	public void testPreviewFlagFalse() throws IOException {
 		if (this.processingEnv instanceof BaseProcessingEnvImpl) {
 			boolean preview = ((BaseProcessingEnvImpl) this.processingEnv).isPreviewEnabled();
 			assertFalse("Preview flag not seen as enabled", preview);
 		}
 	}

 	@Override
 	public void reportError(String msg) {
 		throw new AssertionFailedError(msg);
 	}
 	private String getExceptionStackTrace(Throwable t) {
 		StringBuffer buf = new StringBuffer(t.getMessage());
 		StackTraceElement[] traces = t.getStackTrace();
 		for (int i = 0; i < traces.length; i++) {
 			StackTraceElement trace = traces[i];
 			buf.append("\n\tat " + trace);
 			if (i == 12)
 				break; // Don't dump all stacks
 		}
 		return buf.toString();
 	}
 	protected String getElementsAsString(List<? extends Element> list) {
 		StringBuilder builder = new StringBuilder("[");
 		for (Element element : list) {
 			if (element instanceof PackageElement) {
 				builder.append(((PackageElement) element).getQualifiedName());
 			} else if (element instanceof ModuleElement) {
 				builder.append(((ModuleElement) element).getQualifiedName());
 			} else if (element instanceof TypeElement) {
 				builder.append(((TypeElement) element).getQualifiedName());
 			}  else {
 				builder.append(element.getSimpleName());
 			}
 			builder.append(", ");
 		}
 		builder.append("]");
 		return builder.toString();
 	}
 	public void assertModifiers(Set<Modifier> modifiers, String[] expected) {
 		assertEquals("Incorrect no of modifiers", modifiers.size(), expected.length);
 		Set<String> actual = new HashSet<String>(expected.length);
 		for (Modifier modifier : modifiers) {
 			actual.add(modifier.toString());
 		}
 		for(int i = 0, length = expected.length; i < length; i++) {
 			boolean result = actual.remove(expected[i]);
 			if (!result) reportError("Modifier not present :" + expected[i]);
 		}
 		if (!actual.isEmpty()) {
 			reportError("Unexpected modifiers present:" + actual.toString());
 		}
 	}
 	public void assertTrue(String msg, boolean value) {
 		if (!value) reportError(msg);
 	}
 	public void assertFalse(String msg, boolean value) {
 		if (value) reportError(msg);
 	}
 	public void assertSame(String msg, Object obj1, Object obj2) {
 		if (obj1 != obj2) {
 			reportError(msg + ", should be " + obj1.toString() + " but " + obj2.toString());
 		}
 	}
 	public void assertNotSame(String msg, Object obj1, Object obj2) {
 		if (obj1 == obj2) {
 			reportError(msg + ", " + obj1.toString() + " should not be same as " + obj2.toString());
 		}
 	}
 	public void assertNotNull(String msg, Object obj) {
 		if (obj == null) {
 			reportError(msg);
 		}
 	}
 	public void assertNull(String msg, Object obj) {
 		if (obj != null) {
 			reportError(msg);
 		}
 	}
     public void assertEquals(String message, Object expected, Object actual) {
         if (equalsRegardingNull(expected, actual)) {
             return;
         } else {
         	reportError(message + ", expected " + expected.toString() + " but was " + actual.toString());
         }
     }

     public void assertEquals(String message, Object expected, Object alternateExpected, Object actual) {
         if (equalsRegardingNull(expected, actual) || equalsRegardingNull(alternateExpected, actual)) {
             return;
         } else {
         	reportError(message + ", expected " + expected.toString() + " but was " + actual.toString());
         }
     }

     static boolean equalsRegardingNull(Object expected, Object actual) {
         if (expected == null) {
             return actual == null;
         }
         return expected.equals(actual);
     }

 	public void assertEquals(String msg, int expected, int actual) {
 		if (expected != actual) {
 			StringBuffer buf = new StringBuffer();
 			buf.append(msg);
 			buf.append(", expected " + expected + " but was " + actual);
 			reportError(buf.toString());
 		}
 	}
 	public void assertEquals(Object expected, Object actual) {
 		if (expected != actual) {

 		}
 	}
 	private class AssertionFailedError extends Error {
 		private static final long serialVersionUID = 1L;

 		public AssertionFailedError(String msg) {
 			super(msg);
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2019 IBM Corporation.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/

	package org.eclipse.jdt.compiler.apt.tests.processors.elements;

	import java.io.IOException;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Method;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Map;
	import java.util.Set;

	import javax.annotation.processing.Filer;
	import javax.annotation.processing.Messager;
	import javax.annotation.processing.ProcessingEnvironment;
	import javax.annotation.processing.RoundEnvironment;
	import javax.annotation.processing.SupportedAnnotationTypes;
	import javax.annotation.processing.SupportedSourceVersion;
	import javax.lang.model.SourceVersion;
	import javax.lang.model.element.Element;
	import javax.lang.model.element.Modifier;
	import javax.lang.model.element.ModuleElement;
	import javax.lang.model.element.PackageElement;
	import javax.lang.model.element.TypeElement;

	import org.eclipse.jdt.internal.compiler.apt.dispatch.BaseProcessingEnvImpl;
	import org.eclipse.jdt.compiler.apt.tests.processors.base.BaseProcessor;

	/**
	* A processor that explores the java 13 specific elements and validates the lambda and
	* type annotated elements. To enable this processor, add
	* -Aorg.eclipse.jdt.compiler.apt.tests.processors.elements.Java11ElementProcessor to the command line.
	* @since 3.14
	*/
	@SupportedAnnotationTypes("*")
	@SupportedSourceVersion(SourceVersion.RELEASE_8)
	public class Java13ElementProcessor extends BaseProcessor {
	boolean reportSuccessAlready = true;
	RoundEnvironment roundEnv = null;
	Messager _messager = null;
	Filer _filer = null;
	boolean isBinaryMode = false;
	String mode;
	@Override
	public synchronized void init(ProcessingEnvironment processingEnv) {
	super.init(processingEnv);
	_elementUtils = processingEnv.getElementUtils();
	_messager = processingEnv.getMessager();
	_filer = processingEnv.getFiler();
	}
	// Always return false from this processor, because it supports "*".
	// The return value does not signify success or failure!
	@Override
	public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
	if (roundEnv.processingOver()) {
	return false;
	}

	this.roundEnv = roundEnv;
	Map<String, String> options = processingEnv.getOptions();
	if (!options.containsKey(this.getClass().getName())) {
	// Disable this processor unless we are intentionally performing the test.
	return false;
	} else {
	try {
	if (options.containsKey("binary")) {
	this.isBinaryMode = true;
	this.mode = "binary";
	} else {
	this.mode = "source";
	}
	if (!invokeTestMethods(options)) {
	testAll();
	}
	if (this.reportSuccessAlready) {
	super.reportSuccess();
	}
	} catch (AssertionFailedError e) {
	super.reportError(getExceptionStackTrace(e));
	} catch (Throwable e) {
	e.printStackTrace();
	}
	}
	return false;
	}

	private boolean invokeTestMethods(Map<String, String> options) throws Throwable {
	Method testMethod = null;
	Set<String> keys = options.keySet();
	boolean testsFound = false;
	for (String option : keys) {
	if (option.startsWith("test")) {
	try {
	testMethod = this.getClass().getDeclaredMethod(option, new Class[0]);
	if (testMethod != null) {
	testsFound = true;
	testMethod.invoke(this, new Object[0]);
	}
	} catch (InvocationTargetException e) {
	throw e.getCause();
	} catch (Exception e) {
	super.reportError(getExceptionStackTrace(e));
	}
	}
	}
	return testsFound;
	}

	public void testAll() throws AssertionFailedError, IOException {
	testPreviewFlagTrue();
	testPreviewFlagFalse();
	}

	public void testPreviewFlagTrue() throws IOException {
	if (this.processingEnv instanceof BaseProcessingEnvImpl) {
	boolean preview = ((BaseProcessingEnvImpl) this.processingEnv).isPreviewEnabled();
	assertTrue("Preview flag not seen as enabled", preview);
	}
	}
	public void testPreviewFlagFalse() throws IOException {
	if (this.processingEnv instanceof BaseProcessingEnvImpl) {
	boolean preview = ((BaseProcessingEnvImpl) this.processingEnv).isPreviewEnabled();
	assertFalse("Preview flag not seen as enabled", preview);
	}
	}

	@Override
	public void reportError(String msg) {
	throw new AssertionFailedError(msg);
	}
	private String getExceptionStackTrace(Throwable t) {
	StringBuffer buf = new StringBuffer(t.getMessage());
	StackTraceElement[] traces = t.getStackTrace();
	for (int i = 0; i < traces.length; i++) {
	StackTraceElement trace = traces[i];
	buf.append("\n\tat " + trace);
	if (i == 12)
	break; // Don't dump all stacks
	}
	return buf.toString();
	}
	protected String getElementsAsString(List<? extends Element> list) {
	StringBuilder builder = new StringBuilder("[");
	for (Element element : list) {
	if (element instanceof PackageElement) {
	builder.append(((PackageElement) element).getQualifiedName());
	} else if (element instanceof ModuleElement) {
	builder.append(((ModuleElement) element).getQualifiedName());
	} else if (element instanceof TypeElement) {
	builder.append(((TypeElement) element).getQualifiedName());
	} else {
	builder.append(element.getSimpleName());
	}
	builder.append(", ");
	}
	builder.append("]");
	return builder.toString();
	}
	public void assertModifiers(Set<Modifier> modifiers, String[] expected) {
	assertEquals("Incorrect no of modifiers", modifiers.size(), expected.length);
	Set<String> actual = new HashSet<String>(expected.length);
	for (Modifier modifier : modifiers) {
	actual.add(modifier.toString());
	}
	for(int i = 0, length = expected.length; i < length; i++) {
	boolean result = actual.remove(expected[i]);
	if (!result) reportError("Modifier not present :" + expected[i]);
	}
	if (!actual.isEmpty()) {
	reportError("Unexpected modifiers present:" + actual.toString());
	}
	}
	public void assertTrue(String msg, boolean value) {
	if (!value) reportError(msg);
	}
	public void assertFalse(String msg, boolean value) {
	if (value) reportError(msg);
	}
	public void assertSame(String msg, Object obj1, Object obj2) {
	if (obj1 != obj2) {
	reportError(msg + ", should be " + obj1.toString() + " but " + obj2.toString());
	}
	}
	public void assertNotSame(String msg, Object obj1, Object obj2) {
	if (obj1 == obj2) {
	reportError(msg + ", " + obj1.toString() + " should not be same as " + obj2.toString());
	}
	}
	public void assertNotNull(String msg, Object obj) {
	if (obj == null) {
	reportError(msg);
	}
	}
	public void assertNull(String msg, Object obj) {
	if (obj != null) {
	reportError(msg);
	}
	}
	public void assertEquals(String message, Object expected, Object actual) {
	if (equalsRegardingNull(expected, actual)) {
	return;
	} else {
	reportError(message + ", expected " + expected.toString() + " but was " + actual.toString());
	}
	}

	public void assertEquals(String message, Object expected, Object alternateExpected, Object actual) {
	if (equalsRegardingNull(expected, actual) \|\| equalsRegardingNull(alternateExpected, actual)) {
	return;
	} else {
	reportError(message + ", expected " + expected.toString() + " but was " + actual.toString());
	}
	}

	static boolean equalsRegardingNull(Object expected, Object actual) {
	if (expected == null) {
	return actual == null;
	}
	return expected.equals(actual);
	}

	public void assertEquals(String msg, int expected, int actual) {
	if (expected != actual) {
	StringBuffer buf = new StringBuffer();
	buf.append(msg);
	buf.append(", expected " + expected + " but was " + actual);
	reportError(buf.toString());
	}
	}
	public void assertEquals(Object expected, Object actual) {
	if (expected != actual) {

	}
	}
	private class AssertionFailedError extends Error {
	private static final long serialVersionUID = 1L;

	public AssertionFailedError(String msg) {
	super(msg);
	}
	}
	}