Merge branch 'netbeans'

4 files changed, 415 insertions, 0 deletions

diff --git a/src/netbeansAgent/lombok/netbeans/agent/NetbeansEntryPoint.java b/src/netbeansAgent/lombok/netbeans/agent/NetbeansEntryPoint.java
new file mode 100644
index 00000000..963b70b5
--- /dev/null
+++ b/src/netbeansAgent/lombok/netbeans/agent/NetbeansEntryPoint.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.netbeans.agent;
+
+import java.util.Collections;
+
+import javax.annotation.processing.Messager;
+import javax.lang.model.element.AnnotationMirror;
+import javax.lang.model.element.AnnotationValue;
+import javax.lang.model.element.Element;
+import javax.tools.Diagnostic.Kind;
+
+import lombok.javac.JavacTransformer;
+
+import com.sun.source.util.TaskEvent;
+import com.sun.source.util.TaskListener;
+import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
+import com.sun.tools.javac.util.Context;
+
+public class NetbeansEntryPoint implements TaskListener {
+	public class DummyMessager implements Messager {
+		@Override public void printMessage(Kind kind, CharSequence msg) {
+			System.err.printf("%s: %s\n", kind, msg);
+		}
+		
+		@Override public void printMessage(Kind kind, CharSequence msg, Element e) {
+			printMessage(kind, msg);
+		}
+		
+		@Override public void printMessage(Kind kind, CharSequence msg, Element e, AnnotationMirror a) {
+			printMessage(kind, msg);
+		}
+		
+		@Override public void printMessage(Kind kind, CharSequence msg, Element e, AnnotationMirror a, AnnotationValue v) {
+			printMessage(kind, msg);
+		}
+	}
+	
+	private final Context context;
+	
+	public NetbeansEntryPoint(Context context) {
+		this.context = context;
+	}
+	
+	@Override public void started(TaskEvent event) {
+		//we run at the end, so all the action is in #finished.
+	}
+	
+	@Override public void finished(TaskEvent event) {
+		if (TaskEvent.Kind.PARSE == event.getKind()) {
+			JavacTransformer transformer = new JavacTransformer(new DummyMessager());	//TODO hook into netbeans error reporting!
+			JCCompilationUnit compilationUnit = (JCCompilationUnit) event.getCompilationUnit();
+			transformer.transform(context, Collections.singleton(compilationUnit));
+		}
+	}
+}
diff --git a/src/netbeansAgent/lombok/netbeans/agent/NetbeansPatcher.java b/src/netbeansAgent/lombok/netbeans/agent/NetbeansPatcher.java
new file mode 100644
index 00000000..39df269b
--- /dev/null
+++ b/src/netbeansAgent/lombok/netbeans/agent/NetbeansPatcher.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.netbeans.agent;
+
+import java.lang.instrument.Instrumentation;
+
+import lombok.core.Agent;
+import lombok.patcher.Hook;
+import lombok.patcher.MethodTarget;
+import lombok.patcher.ScriptManager;
+import lombok.patcher.StackRequest;
+import lombok.patcher.scripts.ScriptBuilder;
+
+/**
+ * This is a java-agent that patches some of netbeans's classes so that lombok is initialized as Javac TaskListener,
+ * allowing us to change AST nodes anytime netbeans parses source code. It also fixes some of the places in netbeans that
+ * can't deal with generated code.
+ * 
+ * The hard work on figuring out where to patch has been done by Jan Lahoda (jlahoda@netbeans.org)
+ */
+public class NetbeansPatcher extends Agent {
+	@Override
+	public void runAgent(String agentArgs, Instrumentation instrumentation, boolean injected) throws Exception {
+		registerPatchScripts(instrumentation, injected);
+	}
+	
+	private static void registerPatchScripts(Instrumentation instrumentation, boolean reloadExistingClasses) {
+		ScriptManager sm = new ScriptManager();
+		sm.registerTransformer(instrumentation);
+		
+		patchNetbeansClassLoader(sm);
+		patchNetbeansJavac(sm);
+		patchNetbeansMissingPositionAwareness(sm);
+		
+		if (reloadExistingClasses) sm.reloadClasses(instrumentation);
+	}
+	
+	private static void patchNetbeansClassLoader(ScriptManager sm) {
+		sm.addScript(ScriptBuilder.exitEarly()
+				.transplant().request(StackRequest.PARAM1, StackRequest.PARAM2)
+				.target(new MethodTarget("org.netbeans.StandardModule$OneModuleClassLoader", "<init>"))
+				.decisionMethod(new Hook("lombok/netbeans/agent/PatchFixes", "addSelfToClassLoader", "(Lorg/netbeans/Module;Ljava/util/List;)Z"))
+				.build());
+		sm.addScript(ScriptBuilder.exitEarly()
+				.transplant()
+				.request(StackRequest.THIS, StackRequest.PARAM1)
+				.target(new MethodTarget("org.netbeans.ProxyClassLoader", "getResource"))
+				.decisionMethod(new Hook("lombok/netbeans/agent/PatchFixes", "getResource_decision", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Z"))
+				.valueMethod(new Hook("lombok/netbeans/agent/PatchFixes", "getResource_value", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/net/URL;"))
+				.build());
+		sm.addScript(ScriptBuilder.exitEarly()
+				.transplant()
+				.request(StackRequest.THIS, StackRequest.PARAM1)
+				.target(new MethodTarget("org.netbeans.ProxyClassLoader", "getResources"))
+				.decisionMethod(new Hook("lombok/netbeans/agent/PatchFixes", "getResources_decision", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Z"))
+				.valueMethod(new Hook("lombok/netbeans/agent/PatchFixes", "getResources_value", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/util/Enumeration;"))
+				.build());
+		sm.addScript(ScriptBuilder.exitEarly()
+				.transplant()
+				.target(new MethodTarget("org.netbeans.ProxyClassLoader", "loadClass"))
+				.request(StackRequest.THIS, StackRequest.PARAM1)
+				.decisionMethod(new Hook("lombok/netbeans/agent/PatchFixes", "loadClass_decision", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Z"))
+				.valueMethod(new Hook("lombok/netbeans/agent/PatchFixes", "loadClass_value", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/Class;"))
+				.build());
+	}
+	
+	private static void patchNetbeansJavac(ScriptManager sm) {
+		sm.addScript(ScriptBuilder.wrapReturnValue()
+				.request(StackRequest.THIS, StackRequest.PARAM1)
+				.transplant()
+				.target(new MethodTarget("com.sun.tools.javac.api.JavacTaskImpl", "setTaskListener"))
+				.wrapMethod(new Hook("lombok/netbeans/agent/PatchFixes", "fixContentOnSetTaskListener",
+						"(Lcom/sun/tools/javac/api/JavacTaskImpl;Lcom/sun/source/util/TaskListener;)V"))
+				.build());
+		
+		sm.addScript(ScriptBuilder.wrapReturnValue()
+				.request(StackRequest.RETURN_VALUE, StackRequest.PARAM1)
+				.transplant()
+				.target(new MethodTarget("org.netbeans.modules.java.source.parsing.JavacParser", "createJavacTask",
+						"com.sun.tools.javac.api.JavacTaskImpl",
+						"org.netbeans.api.java.source.ClasspathInfo", "javax.tools.DiagnosticListener", "java.lang.String", "boolean",
+						"com.sun.tools.javac.api.ClassNamesForFileOraculum", "com.sun.tools.javac.util.CancelService"))
+				.wrapMethod(new Hook("lombok/netbeans/agent/PatchFixes", "addTaskListenerWhenCallingJavac",
+						"(Lcom/sun/tools/javac/api/JavacTaskImpl;Lorg/netbeans/api/java/source/ClasspathInfo;)V"))
+				.build());
+	}
+	
+	private static void patchNetbeansMissingPositionAwareness(ScriptManager sm) {
+		sm.addScript(ScriptBuilder.replaceMethodCall()
+				.target(new MethodTarget("org.netbeans.modules.java.editor.overridden.ComputeAnnotations",
+						"createAnnotations"))
+				.methodToReplace(new Hook("com/sun/source/util/Trees", "getTree",
+						"(Ljavax/lang/model/element/Element;)Lcom/sun/source/tree/Tree;"))
+				.replacementMethod(new Hook("lombok/netbeans/agent/PatchFixes", "returnNullForGeneratedNode",
+						"(Lcom/sun/source/util/Trees;Ljavax/lang/model/element/Element;Ljava/lang/Object;)" +
+						"Lcom/sun/source/tree/Tree;"))
+				.requestExtra(StackRequest.PARAM1).transplant()
+				.build());
+		
+		sm.addScript(ScriptBuilder.replaceMethodCall()
+				.target(new MethodTarget("org.netbeans.modules.java.source.parsing.FindMethodRegionsVisitor",
+						"visitMethod"))
+				.methodToReplace(new Hook("com/sun/source/util/SourcePositions", "getEndPosition",
+						"(Lcom/sun/source/tree/CompilationUnitTree;Lcom/sun/source/tree/Tree;)J"))
+				.replacementMethod(new Hook("lombok/netbeans/agent/PatchFixes", "returnMinus1ForGeneratedNode",
+						"(Lcom/sun/source/util/SourcePositions;Lcom/sun/source/tree/CompilationUnitTree;Lcom/sun/source/tree/Tree;)J"))
+				.transplant().build());
+		
+		sm.addScript(ScriptBuilder.wrapMethodCall()
+				.target(new MethodTarget("org.netbeans.modules.java.source.save.CasualDiff", "filterHidden"))
+				.methodToWrap(new Hook("java/lang/Iterable", "iterator", "()L/java/util/Iterator;"))
+				.wrapMethod(new Hook("lombok/netbeans/agent/PatchFixes", "filterGenerated",
+						"(Ljava/util/Iterator;)L/java/util/Iterator;"))
+				.transplant().build());
+	}
+}
diff --git a/src/netbeansAgent/lombok/netbeans/agent/PatchFixes.java b/src/netbeansAgent/lombok/netbeans/agent/PatchFixes.java
new file mode 100644
index 00000000..d9b858cd
--- /dev/null
+++ b/src/netbeansAgent/lombok/netbeans/agent/PatchFixes.java
@@ -0,0 +1,179 @@
+/*
+ * Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.netbeans.agent;
+
+import java.io.File;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.List;
+import java.util.NoSuchElementException;
+
+import javax.lang.model.element.Element;
+
+import lombok.Lombok;
+import lombok.patcher.inject.LiveInjector;
+
+import org.netbeans.Module;
+import org.netbeans.ProxyClassLoader;
+import org.netbeans.api.java.source.ClasspathInfo;
+
+import com.sun.source.tree.CompilationUnitTree;
+import com.sun.source.tree.Tree;
+import com.sun.source.util.SourcePositions;
+import com.sun.source.util.TaskListener;
+import com.sun.source.util.Trees;
+import com.sun.tools.javac.api.JavacTaskImpl;
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.util.Context;
+
+// A lot of the footwork on the netbeans support has been done by Jan Lahoda, who is awesome. (jlahoda@netbeans.org)
+// This footwork was converted into a patch script form by me (rzwitserloot). See:
+// http://code.google.com/p/projectlombok/issues/detail?id=20#c3
+public class PatchFixes {
+	public static boolean loadClass_decision(@SuppressWarnings("unused") ClassLoader loader, String name) throws Exception {
+		return name.startsWith("lombok.");
+	}
+	
+	public static Class<?> loadClass_value(ClassLoader loader, String name) throws Exception {
+		int last = name.lastIndexOf('.');
+		String pkg = (last >= 0) ? name.substring(0, last) : "";
+		Method m = ProxyClassLoader.class.getDeclaredMethod("selfLoadClass", String.class, String.class);
+		m.setAccessible(true);
+		return (Class<?>)m.invoke(loader, pkg, name);
+	}
+	
+	public static boolean getResource_decision(@SuppressWarnings("unused") ClassLoader loader, String name) throws Exception {
+		return name.startsWith("META-INF/services/lombok.");
+	}
+	
+	public static URL getResource_value(ClassLoader loader, String name) throws Exception {
+		Method m = ProxyClassLoader.class.getDeclaredMethod("findResource", String.class);
+		m.setAccessible(true);
+		return (URL) m.invoke(loader, name);
+	}
+	
+	public static boolean getResources_decision(@SuppressWarnings("unused") ClassLoader loader, String name) throws Exception {
+		return name.startsWith("META-INF/services/lombok.");
+	}
+	
+	public static Enumeration<?> getResources_value(ClassLoader loader, String name) throws Exception {
+		Method m = ProxyClassLoader.class.getDeclaredMethod("findResources", String.class);
+		m.setAccessible(true);
+		return (Enumeration<?>) m.invoke(loader, name);
+	}
+	
+	public static boolean addSelfToClassLoader(Module module, List<File> classPath) {
+		if (module.getJarFile().getName().equals("org-netbeans-libs-javacimpl.jar")) {
+			String lombokJarLoc = LiveInjector.findPathJar(Lombok.class);
+			classPath.add(new File(lombokJarLoc));
+		}
+		
+		return false;
+	}
+	
+	public static void fixContentOnSetTaskListener(JavacTaskImpl that, TaskListener taskListener) throws Throwable {
+		Context context = that.getContext();
+		
+		if (context.get(TaskListener.class) != null)
+			context.put(TaskListener.class, (TaskListener)null);
+		if (taskListener != null) {
+			try {
+				Method m = JavacTaskImpl.class.getDeclaredMethod("wrap", TaskListener.class);
+				try {
+					m.setAccessible(true);
+				} catch (SecurityException ignore) {}
+				TaskListener w = (TaskListener)m.invoke(that, taskListener);
+				context.put(TaskListener.class, w);
+			} catch (InvocationTargetException e) {
+				throw e.getCause();
+			}
+		}
+	}
+	
+	public static Tree returnNullForGeneratedNode(Trees trees, Element element, Object o) throws Throwable {
+		try {
+			Tree tree = trees.getTree(element);
+			if (tree == null) return null;
+			CompilationUnitTree unit = (CompilationUnitTree) o.getClass().getMethod("getCompilationUnit").invoke(o);
+			int startPos = (int) trees.getSourcePositions().getStartPosition(unit, tree);
+			if (startPos == -1) return null;
+			return tree;
+		} catch (InvocationTargetException e) {
+			throw e.getCause();
+		}
+	}
+	
+	public static long returnMinus1ForGeneratedNode(SourcePositions that, CompilationUnitTree cu, Tree tree) {
+		int start = (int) that.getStartPosition(cu, tree);
+		if (start < 0) return -1;
+		return that.getEndPosition(cu, tree);
+	}
+	
+	public static void addTaskListenerWhenCallingJavac(JavacTaskImpl task,
+			@SuppressWarnings("unused") /* Will come in handy later */ ClasspathInfo cpInfo) throws Exception {
+		Class<?> entryPoint = JavacTaskImpl.class.getClassLoader().loadClass("lombok.netbeans.agent.NetbeansEntryPoint");
+		task.setTaskListener((TaskListener) entryPoint.getConstructor(Context.class).newInstance(task.getContext()));
+	}
+	
+	public static Iterator<JCTree> filterGenerated(final Iterator<JCTree> it) {
+		return new Iterator<JCTree>() {
+			private JCTree next;
+			private boolean hasNext;
+			
+			{
+				calc();
+			}
+			
+			private void calc() {
+				while (it.hasNext()) {
+					JCTree n = it.next();
+					if (n.pos != -1) {
+						hasNext = true;
+						next = n;
+						return;
+					}
+				}
+				
+				hasNext = false;
+				next = null;
+			}
+			
+			@Override public boolean hasNext() {
+				return hasNext;
+			}
+			
+			@Override public JCTree next() {
+				if (!hasNext) throw new NoSuchElementException();
+				JCTree n = next;
+				calc();
+				return n;
+			}
+			
+			@Override public void remove() {
+				throw new UnsupportedOperationException();
+			}
+		};
+	}
+}
diff --git a/src/netbeansAgent/lombok/netbeans/agent/package-info.java b/src/netbeansAgent/lombok/netbeans/agent/package-info.java
new file mode 100644
index 00000000..a6a2f2db
--- /dev/null
+++ b/src/netbeansAgent/lombok/netbeans/agent/package-info.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * Contains the mechanism that instruments netbeans by being loaded as a javaagent.
+ */
+package lombok.netbeans.agent;