[jdk17] Add support for sealed classes

src/delombok/lombok/delombok/PrettyPrinter.java

@@ -545,6 +545,12 @@ public class PrettyPrinter extends JCTree.Visitor {
 			print(tree.implementing, ", ");
 		}
 		
+		List<JCExpression> permitting = readObject(tree, "permitting", List.<JCExpression>nil());
+		if (permitting.nonEmpty()) {
+			print(" permits ");
+			print(permitting, ", ");
+		}
+		
 		println(" {");
 		indent++;
 		printClassMembers(tree.defs, isEnum, isInterface);
@@ -1016,6 +1022,8 @@ public class PrettyPrinter extends JCTree.Visitor {
 		if ((v & TRANSIENT) != 0) print("transient ");
 		if ((v & NATIVE) != 0) print("native ");
 		if ((v & ABSTRACT) != 0) print("abstract ");
+		if ((v & SEALED) != 0) print("sealed ");
+		if ((v & NON_SEALED) != 0) print("non-sealed ");
 		if ((v & STRICTFP) != 0) print("strictfp ");
 		if ((v & DEFAULT) != 0 && (v & INTERFACE) == 0) print("default ");
 	}

src/utils/lombok/javac/Java14Flags.java

@@ -1,26 +0,0 @@
-package lombok.javac;
-
-public class Java14Flags {
-	private Java14Flags() { }
-
-	/**
-	 * Flag to indicate that a class is a record. The flag is also used to mark fields that are
-	 * part of the state vector of a record and to mark the canonical constructor
-	 */
-	public static final long RECORD = 1L<<61; // ClassSymbols, MethodSymbols and VarSymbols
-
-	/**
-	 * Flag to mark a record constructor as a compact one
-	 */
-	public static final long COMPACT_RECORD_CONSTRUCTOR = 1L<<51; // MethodSymbols only
-
-	/**
-	 * Flag to mark a record field that was not initialized in the compact constructor
-	 */
-	public static final long UNINITIALIZED_FIELD= 1L<<51; // VarSymbols only
-
-	/** Flag is set for compiler-generated record members, it could be appplied to
-	 *  accessors and fields
-	 */
-	public static final int GENERATED_MEMBER = 1<<24; // MethodSymbols and VarSymbols
-}

src/utils/lombok/javac/Javac.java

@@ -80,6 +80,8 @@ public class Javac {
 	public static final long COMPACT_RECORD_CONSTRUCTOR = 1L << 51; // MethodSymbols (the 'implicit' many-args constructor that records have)
 	public static final long UNINITIALIZED_FIELD = 1L << 51; // VarSymbols (To identify fields that the compact record constructor won't initialize)
 	public static final long GENERATED_MEMBER = 1L << 24; // MethodSymbols, VarSymbols (marks methods and the constructor generated in records)
+	public static final long SEALED = 1L << 62; // ClassSymbols (Flag to indicate sealed class/interface declaration)
+	public static final long NON_SEALED = 1L << 63; // ClassSymbols (Flag to indicate that the class/interface was declared with the non-sealed modifier)
 	
 	/**
 	 * Returns the version of this java compiler, i.e. the JDK that it shipped in. For example, for javac v1.7, this returns {@code 7}.

test/pretty/resource/after/Sealed.java

@@ -0,0 +1,16 @@
+public class Sealed {
+	public abstract sealed class Parent permits Child1, Child2 {
+	}
+
+	public final class Child1 extends Parent {
+	}
+
+	public abstract non-sealed class Child2 extends Parent {
+	}
+
+	public sealed interface SealedInterface permits ChildInterface1 {
+	}
+
+	public non-sealed interface ChildInterface1 extends SealedInterface {
+	}
+}

test/pretty/resource/before/Sealed.java

@@ -0,0 +1,17 @@
+// version 15:
+public class Sealed {
+	public abstract sealed class Parent permits Child1, Child2 {
+	}
+
+	public final class Child1 extends Parent {
+	}
+
+	public abstract non-sealed class Child2 extends Parent {
+	}
+
+	public sealed interface SealedInterface permits ChildInterface1 {
+	}
+
+	public non-sealed interface ChildInterface1 extends SealedInterface {
+	}
+}