Got delombok to work with JDK 1.7.

For now PrettyCommentsPrinter is not able to print new features like JCTypeUnion,
but first tests indicate that besides this it works just fine.

build.xml

@@ -149,6 +149,12 @@ the common tasks and can be called on to run the main aspects of all the sub-scr
 			<classpath location="build/lombok" />
 			<classpath refid="build.path" />
 		</ivy:compile>
+		<ivy:compile destdir="build/lombok" source="1.6" target="1.6" includeantruntime="false">
+			<src path="experimental/delombok_java7/src/main" />
+			<include name="lombok/delombok/**" />
+			<classpath location="build/lombok" />
+			<classpath location="experimental/delombok_java7/lib/javac7.jar" />
+		</ivy:compile>
 		<mkdir dir="build/lombok/META-INF" />
 		<mkdir dir="build/lombok/META-INF/services" />
 		<echo file="build/lombok/META-INF/services/javax.annotation.processing.Processor">lombok.core.AnnotationProcessor</echo>

experimental/delombok_java7/NOTE

@@ -0,0 +1,2 @@
+The provided 'javac7.jar' may not be complete and should not be used for
+anything else but building 'delombok_java7'.

experimental/delombok_java7/src/main/lombok/delombok/java7/CommentCollectingScanner.java

@@ -0,0 +1,95 @@
+/*
+ * Copyright © 2011 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.delombok.java7;
+
+import java.nio.CharBuffer;
+
+import lombok.delombok.Comment;
+import lombok.delombok.Comment.EndConnection;
+import lombok.delombok.Comment.StartConnection;
+import lombok.delombok.Delombok.Comments;
+
+import com.sun.tools.javac.parser.Scanner;
+
+public class CommentCollectingScanner extends Scanner {
+	private final Comments comments;
+	private int endComment = 0;	
+	
+	public CommentCollectingScanner(CommentCollectingScannerFactory factory, CharBuffer charBuffer, Comments comments) {
+		super(factory, charBuffer);
+		this.comments = comments;
+	}
+	
+	public CommentCollectingScanner(CommentCollectingScannerFactory factory, char[] input, int inputLength, Comments comments) {
+		super(factory, input, inputLength);
+		this.comments = comments;
+	}
+	
+	@Override
+	protected void processComment(CommentStyle style) {
+		int prevEndPos = Math.max(prevEndPos(), endComment);
+		int pos = pos();
+		int endPos = endPos();
+		endComment = endPos;
+		String content = new String(getRawCharacters(pos, endPos));
+		StartConnection start = determineStartConnection(prevEndPos, pos);
+		EndConnection end = determineEndConnection(endPos); 
+
+		Comment comment = new Comment(prevEndPos, pos, endPos, content, start, end);
+		comments.add(comment);
+	}
+	
+	private EndConnection determineEndConnection(int pos) {
+		boolean first = true;
+		for (int i = pos;; i++) {
+			char c = getRawCharacters(i, i + 1)[0];
+			if (isNewLine(c)) {
+				return EndConnection.ON_NEXT_LINE;
+			}
+			if (Character.isWhitespace(c)) {
+				first = false;
+				continue;
+			}
+			return first ? EndConnection.DIRECT_AFTER_COMMENT : EndConnection.AFTER_COMMENT;
+		}
+	}
+
+	private StartConnection determineStartConnection(int from, int to) {
+		if (from == to) {
+			return StartConnection.DIRECT_AFTER_PREVIOUS;
+		}
+		char[] between = getRawCharacters(from, to);
+		if (isNewLine(between[between.length - 1])) {
+			return StartConnection.START_OF_LINE;
+		}
+		for (char c : between) {
+			if (isNewLine(c)) {
+				return StartConnection.ON_NEXT_LINE;
+			}
+		}
+		return StartConnection.AFTER_PREVIOUS;
+	}
+
+	private boolean isNewLine(char c) {
+		return c == '\n' || c == '\r';
+	}
+}

experimental/delombok_java7/src/main/lombok/delombok/java7/CommentCollectingScannerFactory.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright © 2011 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.delombok.java7;
+
+import java.nio.CharBuffer;
+
+import lombok.delombok.Delombok.Comments;
+
+import com.sun.tools.javac.parser.Scanner;
+import com.sun.tools.javac.parser.ScannerFactory;
+import com.sun.tools.javac.util.Context;
+
+public class CommentCollectingScannerFactory extends ScannerFactory {
+	private final Context context;
+	
+	public static void preRegister(final Context context) {
+		context.put(scannerFactoryKey, new Context.Factory<ScannerFactory>() {
+			public ScannerFactory make() {
+				return new CommentCollectingScannerFactory(context);
+			}
+		});
+	}
+	
+	/** Create a new scanner factory. */
+	protected CommentCollectingScannerFactory(Context context) {
+		super(context);
+		this.context = context;
+	}
+	
+	@Override
+	public Scanner newScanner(CharSequence input, boolean keepDocComments) {
+		if (input instanceof CharBuffer) {
+			return new CommentCollectingScanner(this, (CharBuffer)input, context.get(Comments.class));
+		}
+		char[] array = input.toString().toCharArray();
+		return newScanner(array, array.length, keepDocComments);
+	}
+	
+	@Override
+	public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) {
+		return new CommentCollectingScanner(this, input, inputLength, context.get(Comments.class));
+	}
+}

src/delombok/lombok/delombok/Delombok.java

@@ -44,6 +44,7 @@ import java.util.Map;
 import javax.tools.DiagnosticListener;
 import javax.tools.JavaFileObject;
 
+import lombok.Lombok;
 import lombok.javac.LombokOptions;
 
 import com.sun.tools.javac.main.JavaCompiler;
@@ -355,7 +356,17 @@ public class Delombok {
 		if (classpath != null) options.put(OptionName.CLASSPATH, classpath);
 		if (sourcepath != null) options.put(OptionName.SOURCEPATH, sourcepath);
 		options.put("compilePolicy", "attr");
-		CommentCollectingScanner.Factory.preRegister(context);
+		
+		try {
+			Class.forName("lombok.delombok.java7.CommentCollectingScannerFactory").getMethod("preRegister", Context.class).invoke(null, context);
+		} catch (Throwable t1) {
+			if (!(t1 instanceof NoClassDefFoundError)) Lombok.sneakyThrow(t1);
+			try {
+				Class.forName("lombok.delombok.java6.CommentCollectingScannerFactory").getMethod("preRegister", Context.class).invoke(null, context);
+			} catch (Exception t2) {
+				Lombok.sneakyThrow(t2);
+			}
+		}
 		
 		JavaCompiler compiler = new JavaCompiler(context);
 		compiler.keepComments = true;
@@ -408,7 +419,7 @@ public class Delombok {
 	public static class Comments {
 		public com.sun.tools.javac.util.ListBuffer<Comment> comments = com.sun.tools.javac.util.ListBuffer.lb();
 		
-		void add(Comment comment) {
+		public void add(Comment comment) {
 			comments.append(comment);
 		}
 	}

src/delombok/lombok/delombok/java6/CommentCollectingScanner.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
+ * Copyright © 2011 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
@@ -19,61 +19,29 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-package lombok.delombok;
+package lombok.delombok.java6;
 
 import java.nio.CharBuffer;
 
+import lombok.delombok.Comment;
 import lombok.delombok.Comment.EndConnection;
 import lombok.delombok.Comment.StartConnection;
 import lombok.delombok.Delombok.Comments;
 
+
 import com.sun.tools.javac.parser.Scanner;
-import com.sun.tools.javac.util.Context;
 
 public class CommentCollectingScanner extends Scanner {
 	private final Comments comments;
 	private int endComment = 0;
-
-	/** A factory for creating scanners. */
-	public static class Factory extends Scanner.Factory {
-		private final Context context;
-		
-		public static void preRegister(final Context context) {
-			context.put(scannerFactoryKey, new Context.Factory<Scanner.Factory>() {
-				public CommentCollectingScanner.Factory make() {
-					return new Factory(context);
-				}
-			});
-		}
-		
-		/** Create a new scanner factory. */
-		protected Factory(Context context) {
-			super(context);
-			this.context = context;
-		}
-		
-		@Override
-		public Scanner newScanner(CharSequence input) {
-			if (input instanceof CharBuffer) {
-				return new CommentCollectingScanner(this, (CharBuffer)input, context.get(Comments.class));
-			}
-			char[] array = input.toString().toCharArray();
-			return newScanner(array, array.length);
-		}
-		
-		@Override
-		public Scanner newScanner(char[] input, int inputLength) {
-			return new CommentCollectingScanner(this, input, inputLength, context.get(Comments.class));
-		}
-	}
 	
 	
-	public CommentCollectingScanner(CommentCollectingScanner.Factory factory, CharBuffer charBuffer, Comments comments) {
+	public CommentCollectingScanner(CommentCollectingScannerFactory factory, CharBuffer charBuffer, Comments comments) {
 		super(factory, charBuffer);
 		this.comments = comments;
 	}
 	
-	public CommentCollectingScanner(CommentCollectingScanner.Factory factory, char[] input, int inputLength, Comments comments) {
+	public CommentCollectingScanner(CommentCollectingScannerFactory factory, char[] input, int inputLength, Comments comments) {
 		super(factory, input, inputLength);
 		this.comments = comments;
 	}

src/delombok/lombok/delombok/java6/CommentCollectingScannerFactory.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright © 2011 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.delombok.java6;
+
+import java.nio.CharBuffer;
+
+import lombok.delombok.Delombok.Comments;
+
+import com.sun.tools.javac.parser.Scanner;
+import com.sun.tools.javac.util.Context;
+
+public class CommentCollectingScannerFactory extends Scanner.Factory {
+	private final Context context;
+	
+	public static void preRegister(final Context context) {
+		context.put(scannerFactoryKey, new Context.Factory<Scanner.Factory>() {
+			public CommentCollectingScanner.Factory make() {
+				return new CommentCollectingScannerFactory(context);
+			}
+		});
+	}
+	
+	/** Create a new scanner factory. */
+	protected CommentCollectingScannerFactory(Context context) {
+		super(context);
+		this.context = context;
+	}
+	
+	@Override
+	public Scanner newScanner(CharSequence input) {
+		if (input instanceof CharBuffer) {
+			return new CommentCollectingScanner(this, (CharBuffer)input, context.get(Comments.class));
+		}
+		char[] array = input.toString().toCharArray();
+		return newScanner(array, array.length);
+	}
+	
+	@Override
+	public Scanner newScanner(char[] input, int inputLength) {
+		return new CommentCollectingScanner(this, input, inputLength, context.get(Comments.class));
+	}
+}