[jdk13] Added support for printing text blocks (triple quoted strings) in text block form

src/delombok/lombok/delombok/Delombok.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2018 The Project Lombok Authors.
+ * Copyright (C) 2009-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -700,11 +700,12 @@ public class Delombok {
 			String[] argv = argsList.toArray(new String[0]);
 			args.init("javac", argv);
 			options.put("diags.legacy", "TRUE");
+			options.put("allowStringFolding", "FALSE");
 		} else {
 			if (modulepath != null && !modulepath.isEmpty()) throw new IllegalStateException("DELOMBOK: Option --module-path requires usage of JDK9 or higher.");
 		}
 		
-		CommentCatcher catcher = CommentCatcher.create(context);
+		CommentCatcher catcher = CommentCatcher.create(context, Javac.getJavaCompilerVersion() >= 13);
 		JavaCompiler compiler = catcher.getCompiler();
 		
 		List<JCCompilationUnit> roots = new ArrayList<JCCompilationUnit>();
@@ -769,7 +770,7 @@ public class Delombok {
 		
 		FormatPreferences fps = new FormatPreferences(formatPrefs);
 		for (JCCompilationUnit unit : roots) {
-			DelombokResult result = new DelombokResult(catcher.getComments(unit), unit, force || options.isChanged(unit), fps);
+			DelombokResult result = new DelombokResult(catcher.getComments(unit), catcher.getTextBlockStarts(unit), unit, force || options.isChanged(unit), fps);
 			if (onlyChanged && !result.isChanged() && !options.isChanged(unit)) {
 				if (verbose) feedback.printf("File: %s [%s]\n", unit.sourcefile.getName(), "unchanged (skipped)");
 				continue;

src/delombok/lombok/delombok/DelombokResult.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2013 The Project Lombok Authors.
+ * Copyright (C) 2009-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -34,12 +34,14 @@ import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
 
 public class DelombokResult {
 	private final List<CommentInfo> comments;
+	private final List<Integer> textBlockStarts;
 	private final JCCompilationUnit compilationUnit;
 	private final boolean changed;
 	private final FormatPreferences formatPreferences;
 	
-	public DelombokResult(List<CommentInfo> comments, JCCompilationUnit compilationUnit, boolean changed, FormatPreferences formatPreferences) {
+	public DelombokResult(List<CommentInfo> comments, List<Integer> textBlockStarts, JCCompilationUnit compilationUnit, boolean changed, FormatPreferences formatPreferences) {
 		this.comments = comments;
+		this.textBlockStarts = textBlockStarts;
 		this.compilationUnit = compilationUnit;
 		this.changed = changed;
 		this.formatPreferences = formatPreferences;
@@ -61,12 +63,15 @@ public class DelombokResult {
 		}
 		
 		com.sun.tools.javac.util.List<CommentInfo> comments_;
+		int[] textBlockStarts_;
 		if (comments instanceof com.sun.tools.javac.util.List) comments_ = (com.sun.tools.javac.util.List<CommentInfo>) comments;
 		else comments_ = com.sun.tools.javac.util.List.from(comments.toArray(new CommentInfo[0]));
-		
+		textBlockStarts_ = new int[textBlockStarts.size()];
+		int idx = 0;
+		for (int tbs : textBlockStarts) textBlockStarts_[idx++] = tbs;
 		FormatPreferences preferences = new FormatPreferenceScanner().scan(formatPreferences, getContent());
 		//compilationUnit.accept(new PrettyCommentsPrinter(out, compilationUnit, comments_, preferences));
-		compilationUnit.accept(new PrettyPrinter(out, compilationUnit, comments_, preferences));
+		compilationUnit.accept(new PrettyPrinter(out, compilationUnit, comments_, textBlockStarts_, preferences));
 	}
 
 	private CharSequence getContent() throws IOException {

src/delombok/lombok/delombok/PrettyPrinter.java

@@ -31,6 +31,7 @@ import java.io.Writer;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -153,6 +154,7 @@ public class PrettyPrinter extends JCTree.Visitor {
 	private final Writer out;
 	private final JCCompilationUnit compilationUnit;
 	private List<CommentInfo> comments;
+	private final int[] textBlockStarts;
 	private final FormatPreferences formatPreferences;
 	
 	private final Map<JCTree, String> docComments;
@@ -160,9 +162,10 @@ public class PrettyPrinter extends JCTree.Visitor {
 	private int indent = 0;
 	
 	@SuppressWarnings({"unchecked", "rawtypes"})
-	public PrettyPrinter(Writer out, JCCompilationUnit cu, List<CommentInfo> comments, FormatPreferences preferences) {
+	public PrettyPrinter(Writer out, JCCompilationUnit cu, List<CommentInfo> comments, int[] textBlockStarts, FormatPreferences preferences) {
 		this.out = out;
 		this.comments = comments;
+		this.textBlockStarts = textBlockStarts;
 		this.compilationUnit = cu;
 		this.formatPreferences = preferences;
 		
@@ -740,7 +743,37 @@ public class PrettyPrinter extends JCTree.Visitor {
 		}
 		else if (CTC_BOOLEAN.equals(typeTag)) print(((Number)tree.value).intValue() == 1 ? "true" : "false");
 		else if (CTC_BOT.equals(typeTag)) print("null");
-		else print("\"" + quoteChars(tree.value.toString()) + "\"");
+		else {
+			if (Arrays.binarySearch(textBlockStarts, tree.pos) < 0) {
+				print("\"" + quoteChars(tree.value.toString()) + "\"");
+			} else {
+				printTextBlock(tree.value.toString());
+			}
+		}
+	}
+	
+	private void printTextBlock(String s) {
+		println("\"\"\"");
+		needsAlign = true;
+		indent++;
+		StringBuilder sb = new StringBuilder();
+		boolean lineStart = true;
+		for (int i = 0; i < s.length(); i++) {
+			char c = s.charAt(i);
+			if (c != ' ' && c != '\t') lineStart = false;
+			if (c == '\n') {
+				println(sb);
+				sb.setLength(0);
+				needsAlign = true;
+				lineStart = true;
+				continue;
+			}
+			if (c == '\t' && lineStart) sb.append("\t");
+			else sb.append(quoteChar(s.charAt(i)));
+		}
+		print(sb);
+		print("\"\"\"");
+		indent--;
 	}
 	
 	@Override public void visitMethodDef(JCMethodDecl tree) {

src/stubs/com/sun/tools/javac/parser/Tokens.java

@@ -2,7 +2,7 @@ package com.sun.tools.javac.parser;
 
 public class Tokens {
 	public static class Token {
-		
+		public int pos;
 	}
 	
 	public interface Comment {

src/utils/lombok/javac/CommentCatcher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2014 The Project Lombok Authors.
+ * Copyright (C) 2011-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -35,9 +35,10 @@ import com.sun.tools.javac.util.Context;
 public class CommentCatcher {
 	private final JavaCompiler compiler;
 	public static final FieldAugment<JCCompilationUnit, List<CommentInfo>> JCCompilationUnit_comments = FieldAugment.augment(JCCompilationUnit.class, List.class, "lombok$comments");
+	public static final FieldAugment<JCCompilationUnit, List<Integer>> JCCompilationUnit_textBlockStarts = FieldAugment.augment(JCCompilationUnit.class, List.class, "lombok$textBlockStarts");
 	
-	public static CommentCatcher create(Context context) {
-		registerCommentsCollectingScannerFactory(context);
+	public static CommentCatcher create(Context context, boolean findTextBlocks) {
+		registerCommentsCollectingScannerFactory(context, findTextBlocks);
 		JavaCompiler compiler = new JavaCompiler(context);
 		
 		setInCompiler(compiler, context);
@@ -69,7 +70,12 @@ public class CommentCatcher {
 		return list == null ? Collections.<CommentInfo>emptyList() : list;
 	}
 	
-	private static void registerCommentsCollectingScannerFactory(Context context) {
+	public List<Integer> getTextBlockStarts(JCCompilationUnit ast) {
+		List<Integer> list = JCCompilationUnit_textBlockStarts.get(ast);
+		return list == null ? Collections.<Integer>emptyList() : list;
+	}
+	
+	private static void registerCommentsCollectingScannerFactory(Context context, boolean findTextBlocks) {
 		try {
 			Class<?> scannerFactory;
 			int javaCompilerVersion = Javac.getJavaCompilerVersion();
@@ -79,6 +85,7 @@ public class CommentCatcher {
 				scannerFactory = Class.forName("lombok.javac.java7.CommentCollectingScannerFactory");
 			} else {
 				scannerFactory = Class.forName("lombok.javac.java8.CommentCollectingScannerFactory");
+				if (findTextBlocks) Permit.getField(scannerFactory, "findTextBlocks").set(null, true);
 			}
 			Permit.getMethod(scannerFactory, "preRegister", Context.class).invoke(null, context);
 		} catch (InvocationTargetException e) {

src/utils/lombok/javac/java8/CommentCollectingParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013-2014 The Project Lombok Authors.
+ * Copyright (C) 2013-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -22,10 +22,7 @@
 package lombok.javac.java8;
 
 import static lombok.javac.CommentCatcher.JCCompilationUnit_comments;
-
-import java.util.List;
-
-import lombok.javac.CommentInfo;
+import static lombok.javac.CommentCatcher.JCCompilationUnit_textBlockStarts;
 
 import com.sun.tools.javac.parser.JavacParser;
 import com.sun.tools.javac.parser.Lexer;
@@ -44,8 +41,8 @@ class CommentCollectingParser extends JavacParser {
 	public JCCompilationUnit parseCompilationUnit() {
 		JCCompilationUnit result = super.parseCompilationUnit();
 		if (lexer instanceof CommentCollectingScanner) {
-			List<CommentInfo> comments = ((CommentCollectingScanner)lexer).getComments();
-			JCCompilationUnit_comments.set(result, comments);
+			JCCompilationUnit_comments.set(result, ((CommentCollectingScanner) lexer).getComments());
+			JCCompilationUnit_textBlockStarts.set(result, ((CommentCollectingScanner) lexer).getTextBlockStarts());
 		}
 		return result;
 	}

src/utils/lombok/javac/java8/CommentCollectingScanner.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The Project Lombok Authors.
+ * Copyright (C) 2013-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -39,4 +39,8 @@ public class CommentCollectingScanner extends Scanner {
 	public List<CommentInfo> getComments() {
 		return tokenizer.getComments();
 	}
+	
+	public List<Integer> getTextBlockStarts() {
+		return tokenizer.getTextBlockStarts();
+	}
 }

src/utils/lombok/javac/java8/CommentCollectingScannerFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2013 The Project Lombok Authors.
+ * Copyright (C) 2011-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -28,7 +28,7 @@ import com.sun.tools.javac.parser.ScannerFactory;
 import com.sun.tools.javac.util.Context;
 
 public class CommentCollectingScannerFactory extends ScannerFactory {
-	
+	public static boolean findTextBlocks;
 	@SuppressWarnings("all")
 	public static void preRegister(final Context context) {
 		if (context.get(scannerFactoryKey) == null) {
@@ -76,7 +76,7 @@ public class CommentCollectingScannerFactory extends ScannerFactory {
 	public Scanner newScanner(CharSequence input, boolean keepDocComments) {
 		if (input instanceof CharBuffer) {
 			CharBuffer buf = (CharBuffer) input;
-			return new CommentCollectingScanner(this, new CommentCollectingTokenizer(this, buf));
+			return new CommentCollectingScanner(this, new CommentCollectingTokenizer(this, buf, findTextBlocks));
 		}
 		char[] array = input.toString().toCharArray();
 		return newScanner(array, array.length, keepDocComments);
@@ -84,6 +84,6 @@ public class CommentCollectingScannerFactory extends ScannerFactory {
 	
 	@Override
 	public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) {
-		return new CommentCollectingScanner(this, new CommentCollectingTokenizer(this, input, inputLength));
+		return new CommentCollectingScanner(this, new CommentCollectingTokenizer(this, input, inputLength, findTextBlocks));
 	}
 }

src/utils/lombok/javac/java8/CommentCollectingTokenizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The Project Lombok Authors.
+ * Copyright (C) 2013-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -39,19 +39,30 @@ import com.sun.tools.javac.util.ListBuffer;
 class CommentCollectingTokenizer extends JavaTokenizer {
 	private int prevEndPosition = 0;
 	private final ListBuffer<CommentInfo> comments = new ListBuffer<CommentInfo>();
+	private final ListBuffer<Integer> textBlockStarts;
 	private int endComment = 0;
-
-	CommentCollectingTokenizer(ScannerFactory fac, char[] buf, int inputLength) {
+	
+	CommentCollectingTokenizer(ScannerFactory fac, char[] buf, int inputLength, boolean findTextBlocks) {
 		super(fac, new PositionUnicodeReader(fac, buf, inputLength));
+		textBlockStarts = findTextBlocks ? new ListBuffer<Integer>() : null;
 	}
 
-	CommentCollectingTokenizer(ScannerFactory fac, CharBuffer buf) {
+	CommentCollectingTokenizer(ScannerFactory fac, CharBuffer buf, boolean findTextBlocks) {
 		super(fac, new PositionUnicodeReader(fac, buf));
+		textBlockStarts = findTextBlocks ? new ListBuffer<Integer>() : null;
+	}
+	
+	int pos() {
+		return ((PositionUnicodeReader) reader).pos();
 	}
 	
 	@Override public Token readToken() {
 		Token token = super.readToken();
-		prevEndPosition = ((PositionUnicodeReader)reader).pos();
+		prevEndPosition = pos();
+		if (textBlockStarts != null && (prevEndPosition - token.pos > 5) && token.getClass().getSimpleName().equals("StringToken")) {
+			char[] start = reader.getRawCharacters(token.pos, token.pos + 3);
+			if (start[0] == '"' && start[1] == '"' && start[2] == '"') textBlockStarts.add(token.pos);
+		}
 		return token;
 	}
 	
@@ -113,6 +124,10 @@ class CommentCollectingTokenizer extends JavaTokenizer {
 		return comments.toList();
 	}	
 	
+	public List<Integer> getTextBlockStarts() {
+		return textBlockStarts == null ? List.<Integer>nil() : textBlockStarts.toList();
+	}
+	
 	static class PositionUnicodeReader extends UnicodeReader {
 		protected PositionUnicodeReader(ScannerFactory sf, char[] input, int inputLength) {
 			super(sf, input, inputLength);

src/utils/lombok/javac/java9/CommentCollectingParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013-2017 The Project Lombok Authors.
+ * Copyright (C) 2013-2019 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -22,10 +22,8 @@
 package lombok.javac.java9;
 
 import static lombok.javac.CommentCatcher.JCCompilationUnit_comments;
+import static lombok.javac.CommentCatcher.JCCompilationUnit_textBlockStarts;
 
-import java.util.List;
-
-import lombok.javac.CommentInfo;
 import lombok.javac.java8.CommentCollectingScanner;
 
 import com.sun.tools.javac.parser.JavacParser;
@@ -45,8 +43,8 @@ class CommentCollectingParser extends JavacParser {
 	public JCCompilationUnit parseCompilationUnit() {
 		JCCompilationUnit result = super.parseCompilationUnit();
 		if (lexer instanceof CommentCollectingScanner) {
-			List<CommentInfo> comments = ((CommentCollectingScanner)lexer).getComments();
-			JCCompilationUnit_comments.set(result, comments);
+			JCCompilationUnit_comments.set(result, ((CommentCollectingScanner) lexer).getComments());
+			JCCompilationUnit_textBlockStarts.set(result, ((CommentCollectingScanner) lexer).getTextBlockStarts());
 		}
 		return result;
 	}

test/pretty/resource/after/TextBlocks.java

@@ -0,0 +1,25 @@
+public class TextBlocks {
+	private String example = """
+		This should not be indented.
+		line 2
+		line 3
+		""";
+	
+	private String ex2 = """
+			This should be though.
+		""";
+	
+	private String ex3 = "This is a simple\nstring";
+	
+	private String ex4 = """
+		""";
+	
+	private String bizarroDent = """
+		foo
+		    bar""" + "hey" + """
+		weird!""";
+	
+	private String stringFolding = "hmmm" + """
+		line1
+			line2""";
+}

test/pretty/resource/before/TextBlocks.java

@@ -0,0 +1,24 @@
+// version 13:
+public class TextBlocks {
+	private String example = """
+		This should not be indented.\nline 2
+		line 3
+		""";
+	
+	private String ex2 = """
+		This should be though.
+	""";
+	
+	private String ex3 = "This is a simple\nstring";
+	
+	private String ex4 = """   
+		""";
+	
+	private String bizarroDent = """
+		  foo\n    bar""" + "hey" + """
+			weird!""";
+	
+	private String stringFolding = "hmmm" + """
+		line1
+			line2""";
+}