[shadowloader] all the patching we do for ecj are ALL entrypoints and need shadowloader treatment. This commit makes it happen.

1 files changed, 587 insertions, 0 deletions

diff --git a/src/eclipseAgent/lombok/launch/PatchFixesHider.java b/src/eclipseAgent/lombok/launch/PatchFixesHider.java
new file mode 100644
index 00000000..23774d0f
--- /dev/null
+++ b/src/eclipseAgent/lombok/launch/PatchFixesHider.java
@@ -0,0 +1,587 @@
+/*
+ * Copyright (C) 2010-2015 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
+ * 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.launch;
+
+import java.io.BufferedOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Stack;
+
+import lombok.eclipse.EclipseAugments;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.jdt.core.IAnnotatable;
+import org.eclipse.jdt.core.IAnnotation;
+import org.eclipse.jdt.core.IMethod;
+import org.eclipse.jdt.core.IType;
+import org.eclipse.jdt.core.JavaModelException;
+import org.eclipse.jdt.core.dom.MethodDeclaration;
+import org.eclipse.jdt.core.dom.SimpleName;
+import org.eclipse.jdt.internal.compiler.ast.Annotation;
+import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.Expression;
+import org.eclipse.jdt.internal.compiler.ast.ForeachStatement;
+import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.MessageSend;
+import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
+import org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
+import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
+import org.eclipse.jdt.internal.compiler.parser.Parser;
+import org.eclipse.jdt.internal.compiler.problem.ProblemReporter;
+import org.eclipse.jdt.internal.core.dom.rewrite.NodeRewriteEvent;
+import org.eclipse.jdt.internal.core.dom.rewrite.RewriteEvent;
+import org.eclipse.jdt.internal.core.dom.rewrite.TokenScanner;
+import org.eclipse.jdt.internal.corext.refactoring.structure.ASTNodeSearchUtil;
+
+/** These contain a mix of the following:
+ * <ul>
+ * <li> 'dependency free' method wrappers that cross the shadowloader barrier.
+ * <li> methods that directly patch, <em>but</em>, these should ALWAYS be transplanted.
+ * </ul>
+ * 
+ * <strong>This class lives on the outside of the shadowloader barrier, and as a consequence, cannot access any other lombok code except other
+ * code in the {@code lombok.launch} package!</strong>.
+ * <p>
+ * This class is package private with lots of public inner static classes. This hides all of them from IDE autocomplete dialogs and such but at the JVM
+ * level the inner static class are just plain public, which is important, because calls to the contents of these inner static classes are injected into
+ * various eclipse classes verbatim, and if they weren't public, the verifier wouldn't accept it.
+ */
+final class PatchFixesHider {
+	
+	/** These utility methods are only used 'internally', but because of transplant methods, the class (and its methods) still have to be public! */
+	public static final class Util {
+		public static Class<?> shadowLoadClass(String name) {
+			try {
+				return Class.forName(name, true, Main.createShadowClassLoader());
+			} catch (ClassNotFoundException e) {
+				throw sneakyThrow(e);
+			}
+		}
+		
+		public static Method findMethod(Class<?> type, String name, Class<?>... parameterTypes) {
+			try {
+				return type.getDeclaredMethod(name, parameterTypes);
+			} catch (NoSuchMethodException e) {
+				throw sneakyThrow(e);
+			}
+		}
+		
+		public static Object invokeMethod(Method method, Object... args) {
+			try {
+				return method.invoke(null, args);
+			} catch (IllegalAccessException e) {
+				throw sneakyThrow(e);
+			} catch (InvocationTargetException e) {
+				throw sneakyThrow(e.getCause());
+			}
+		}
+		
+		private static RuntimeException sneakyThrow(Throwable t) {
+			if (t == null) throw new NullPointerException("t");
+			Util.<RuntimeException>sneakyThrow0(t);
+			return null;
+		}
+		
+		@SuppressWarnings("unchecked")
+		private static <T extends Throwable> void sneakyThrow0(Throwable t) throws T {
+			throw (T)t;
+		}
+	}
+	
+	/** Contains patch fixes that are dependent on lombok internals. */
+	public static final class LombokDeps {
+		public static final Method ADD_LOMBOK_NOTES;
+		public static final Method POST_COMPILER_BYTES_STRING;
+		public static final Method POST_COMPILER_OUTPUTSTREAM;
+		public static final Method POST_COMPILER_BUFFEREDOUTPUTSTREAM_STRING_STRING;
+		
+		static {
+			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.agent.PatchFixesShadowLoaded");
+			ADD_LOMBOK_NOTES = Util.findMethod(shadowed, "addLombokNotesToEclipseAboutDialog", String.class, String.class);
+			POST_COMPILER_BYTES_STRING = Util.findMethod(shadowed, "runPostCompiler", byte[].class, String.class);
+			POST_COMPILER_OUTPUTSTREAM = Util.findMethod(shadowed, "runPostCompiler", OutputStream.class);
+			POST_COMPILER_BUFFEREDOUTPUTSTREAM_STRING_STRING = Util.findMethod(shadowed, "runPostCompiler", BufferedOutputStream.class, String.class, String.class);
+		}
+		
+		public static String addLombokNotesToEclipseAboutDialog(String origReturnValue, String key) {
+			return (String) Util.invokeMethod(LombokDeps.ADD_LOMBOK_NOTES, origReturnValue, key);
+		}
+		
+		public static byte[] runPostCompiler(byte[] bytes, String fileName) {
+			return (byte[]) Util.invokeMethod(LombokDeps.POST_COMPILER_BYTES_STRING, bytes, fileName);
+		}
+		
+		public static OutputStream runPostCompiler(OutputStream out) throws IOException {
+			return (OutputStream) Util.invokeMethod(LombokDeps.POST_COMPILER_OUTPUTSTREAM, out);
+		}
+		
+		public static BufferedOutputStream runPostCompiler(BufferedOutputStream out, String path, String name) throws IOException {
+			return (BufferedOutputStream) Util.invokeMethod(LombokDeps.POST_COMPILER_BUFFEREDOUTPUTSTREAM_STRING_STRING, out, path, name);
+		}
+	}
+	
+	public static final class Transform {
+		private static final Method TRANSFORM;
+		private static final Method TRANSFORM_SWAPPED;
+		
+		static {
+			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.TransformEclipseAST");
+			TRANSFORM = Util.findMethod(shadowed, "transform", Parser.class, CompilationUnitDeclaration.class);
+			TRANSFORM_SWAPPED = Util.findMethod(shadowed, "transform_swapped", CompilationUnitDeclaration.class, Parser.class);
+		}
+		
+		public static void transform(Parser parser, CompilationUnitDeclaration ast) throws IOException {
+			Util.invokeMethod(TRANSFORM, parser, ast);
+		}
+		
+		public static void transform_swapped(CompilationUnitDeclaration ast, Parser parser) throws IOException {
+			Util.invokeMethod(TRANSFORM_SWAPPED, ast, parser);
+		}
+	}
+	
+	/** Contains patch code to support {@code @Delegate} */
+	public static final class Delegate {
+		private static final Method HANDLE_DELEGATE_FOR_TYPE;
+		
+		static {
+			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.agent.PatchDelegatePortal");
+			HANDLE_DELEGATE_FOR_TYPE = Util.findMethod(shadowed, "handleDelegateForType", Object.class);
+		}
+		
+		public static boolean handleDelegateForType(Object classScope) {
+			return (Boolean) Util.invokeMethod(HANDLE_DELEGATE_FOR_TYPE, classScope);
+		}
+	}
+	
+	/** Contains patch code to support {@code val} (eclipse specific) */
+	public static final class ValPortal {
+		private static final Method COPY_INITIALIZATION_OF_FOR_EACH_ITERABLE;
+		private static final Method COPY_INITIALIZATION_OF_LOCAL_DECLARATION;
+		private static final Method ADD_FINAL_AND_VAL_ANNOTATION_TO_VARIABLE_DECLARATION_STATEMENT;
+		private static final Method ADD_FINAL_AND_VAL_ANNOTATION_TO_SINGLE_VARIABLE_DECLARATION;
+		
+		static {
+			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.agent.PatchValEclipsePortal");
+			COPY_INITIALIZATION_OF_FOR_EACH_ITERABLE = Util.findMethod(shadowed, "copyInitializationOfForEachIterable", Object.class);
+			COPY_INITIALIZATION_OF_LOCAL_DECLARATION = Util.findMethod(shadowed, "copyInitializationOfLocalDeclaration", Object.class);
+			ADD_FINAL_AND_VAL_ANNOTATION_TO_VARIABLE_DECLARATION_STATEMENT = Util.findMethod(shadowed, "addFinalAndValAnnotationToVariableDeclarationStatement", Object.class, Object.class, Object.class);
+			ADD_FINAL_AND_VAL_ANNOTATION_TO_SINGLE_VARIABLE_DECLARATION = Util.findMethod(shadowed, "addFinalAndValAnnotationToSingleVariableDeclaration", Object.class, Object.class, Object.class);
+		}
+
+		public static void copyInitializationOfForEachIterable(Object parser) {
+			Util.invokeMethod(COPY_INITIALIZATION_OF_FOR_EACH_ITERABLE, parser);
+		}
+		
+		public static void copyInitializationOfLocalDeclaration(Object parser) {
+			Util.invokeMethod(COPY_INITIALIZATION_OF_LOCAL_DECLARATION, parser);
+		}
+		
+		public static void addFinalAndValAnnotationToVariableDeclarationStatement(Object converter, Object out, Object in) {
+			Util.invokeMethod(ADD_FINAL_AND_VAL_ANNOTATION_TO_VARIABLE_DECLARATION_STATEMENT, converter, out, in);
+		}
+		
+		public static void addFinalAndValAnnotationToSingleVariableDeclaration(Object converter, Object out, Object in) {
+			Util.invokeMethod(ADD_FINAL_AND_VAL_ANNOTATION_TO_SINGLE_VARIABLE_DECLARATION, converter, out, in);
+		}
+	}
+	
+	/** Contains patch code to support {@code val} (eclipse and ecj) */
+	public static final class Val {
+		private static final Method SKIP_RESOLVE_INITIALIZER_IF_ALREADY_CALLED;
+		private static final Method SKIP_RESOLVE_INITIALIZER_IF_ALREADY_CALLED2;
+		private static final Method HANDLE_VAL_FOR_LOCAL_DECLARATION;
+		private static final Method HANDLE_VAL_FOR_FOR_EACH;
+		
+		static {
+			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.agent.PatchVal");
+			SKIP_RESOLVE_INITIALIZER_IF_ALREADY_CALLED = Util.findMethod(shadowed, "skipResolveInitializerIfAlreadyCalled", Expression.class, BlockScope.class);
+			SKIP_RESOLVE_INITIALIZER_IF_ALREADY_CALLED2 = Util.findMethod(shadowed, "skipResolveInitializerIfAlreadyCalled2", Expression.class, BlockScope.class, LocalDeclaration.class);
+			HANDLE_VAL_FOR_LOCAL_DECLARATION = Util.findMethod(shadowed, "handleValForLocalDeclaration", LocalDeclaration.class, BlockScope.class);
+			HANDLE_VAL_FOR_FOR_EACH = Util.findMethod(shadowed, "handleValForForEach", ForeachStatement.class, BlockScope.class);
+		}
+		
+		public static TypeBinding skipResolveInitializerIfAlreadyCalled(Expression expr, BlockScope scope) {
+			return (TypeBinding) Util.invokeMethod(SKIP_RESOLVE_INITIALIZER_IF_ALREADY_CALLED, expr, scope);
+		}
+		
+		public static TypeBinding skipResolveInitializerIfAlreadyCalled2(Expression expr, BlockScope scope, LocalDeclaration decl) {
+			return (TypeBinding) Util.invokeMethod(SKIP_RESOLVE_INITIALIZER_IF_ALREADY_CALLED2, expr, scope, decl);
+		}
+		
+		public static boolean handleValForLocalDeclaration(LocalDeclaration local, BlockScope scope) {
+			return (Boolean) Util.invokeMethod(HANDLE_VAL_FOR_LOCAL_DECLARATION, local, scope);
+		}
+		
+		public static boolean handleValForForEach(ForeachStatement forEach, BlockScope scope) {
+			return (Boolean) Util.invokeMethod(HANDLE_VAL_FOR_FOR_EACH, forEach, scope);
+		}
+	}
+	
+	/** Contains patch code to support {@code @ExtensionMethod} */
+	public static final class ExtensionMethod {
+		private static final Method RESOLVE_TYPE;
+		private static final Method ERROR_NO_METHOD_FOR;
+		private static final Method INVALID_METHOD;
+		
+		static {
+			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.agent.PatchExtensionMethod");
+			RESOLVE_TYPE = Util.findMethod(shadowed, "resolveType", TypeBinding.class, MessageSend.class, BlockScope.class);
+			ERROR_NO_METHOD_FOR = Util.findMethod(shadowed, "errorNoMethodFor", ProblemReporter.class, MessageSend.class, TypeBinding.class, TypeBinding[].class);
+			INVALID_METHOD = Util.findMethod(shadowed, "invalidMethod", ProblemReporter.class, MessageSend.class, MethodBinding.class);
+		}
+		
+		public static TypeBinding resolveType(TypeBinding resolvedType, MessageSend methodCall, BlockScope scope) {
+			return (TypeBinding) Util.invokeMethod(RESOLVE_TYPE, resolvedType, methodCall, scope);
+		}
+		
+		public static void errorNoMethodFor(ProblemReporter problemReporter, MessageSend messageSend, TypeBinding recType, TypeBinding[] params) {
+			Util.invokeMethod(ERROR_NO_METHOD_FOR, problemReporter, messageSend, recType, params);
+		}
+		
+		public static void invalidMethod(ProblemReporter problemReporter, MessageSend messageSend, MethodBinding method) {
+			Util.invokeMethod(INVALID_METHOD, problemReporter, messageSend, method);
+		}
+	}
+	
+	/**
+	 * Contains a mix of methods: ecj only, ecj+eclipse, and eclipse only. As a consequence, _EVERY_ method from here used for ecj MUST be
+	 * transplanted, as ecj itself cannot load this class (signatures refer to things that don't exist in ecj-only mode).
+	 * <p>
+	 * Because of usage of transplant(), a bunch of these contain direct code and don't try to cross the shadowloader barrier.
+	 */
+	public static final class PatchFixes {
+		public static boolean isGenerated(org.eclipse.jdt.core.dom.ASTNode node) {
+			boolean result = false;
+			try {
+				result = ((Boolean)node.getClass().getField("$isGenerated").get(node)).booleanValue();
+				if (!result && node.getParent() != null && node.getParent() instanceof org.eclipse.jdt.core.dom.QualifiedName) {
+					result = isGenerated(node.getParent());
+				}
+			} catch (Exception e) {
+				// better to assume it isn't generated
+			}
+			return result;
+		}
+		
+		public static boolean isListRewriteOnGeneratedNode(org.eclipse.jdt.core.dom.rewrite.ListRewrite rewrite) {
+			return isGenerated(rewrite.getParent());
+		}
+		
+		public static boolean returnFalse(java.lang.Object object) {
+			return false;
+		}
+		
+		public static boolean returnTrue(java.lang.Object object) {
+			return true;
+		}
+		
+		@java.lang.SuppressWarnings({"unchecked", "rawtypes"}) public static java.util.List removeGeneratedNodes(java.util.List list) {
+			try {
+				java.util.List realNodes = new java.util.ArrayList(list.size());
+				for (java.lang.Object node : list) {
+					if(!isGenerated(((org.eclipse.jdt.core.dom.ASTNode)node))) {
+						realNodes.add(node);
+					}
+				}
+				return realNodes;
+			} catch (Exception e) {
+			}
+			return list;
+		}
+		
+		public static java.lang.String getRealMethodDeclarationSource(java.lang.String original, Object processor, org.eclipse.jdt.core.dom.MethodDeclaration declaration) throws Exception {
+			if (!isGenerated(declaration)) return original;
+			
+			List<org.eclipse.jdt.core.dom.Annotation> annotations = new ArrayList<org.eclipse.jdt.core.dom.Annotation>();
+			for (Object modifier : declaration.modifiers()) {
+				if (modifier instanceof org.eclipse.jdt.core.dom.Annotation) {
+					org.eclipse.jdt.core.dom.Annotation annotation = (org.eclipse.jdt.core.dom.Annotation)modifier;
+					String qualifiedAnnotationName = annotation.resolveTypeBinding().getQualifiedName();
+					if (!"java.lang.Override".equals(qualifiedAnnotationName) && !"java.lang.SuppressWarnings".equals(qualifiedAnnotationName)) annotations.add(annotation);
+				}
+			}
+			
+			StringBuilder signature = new StringBuilder();
+			addAnnotations(annotations, signature);
+			
+			if ((Boolean)processor.getClass().getDeclaredField("fPublic").get(processor)) signature.append("public ");
+			if ((Boolean)processor.getClass().getDeclaredField("fAbstract").get(processor)) signature.append("abstract ");
+			
+			signature
+				.append(declaration.getReturnType2().toString())
+				.append(" ").append(declaration.getName().getFullyQualifiedName())
+				.append("(");
+			
+			boolean first = true;
+			for (Object parameter : declaration.parameters()) {
+				if (!first) signature.append(", ");
+				first = false;
+				// We should also add the annotations of the parameters
+				signature.append(parameter);
+			}
+			
+			signature.append(");");
+			return signature.toString();
+		}
+		
+		// part of getRealMethodDeclarationSource(...)
+		public static void addAnnotations(List<org.eclipse.jdt.core.dom.Annotation> annotations, StringBuilder signature) {
+			/*
+			 * We SHOULD be able to handle the following cases:
+			 * @Override
+			 * @Override()
+			 * @SuppressWarnings("all")
+			 * @SuppressWarnings({"all", "unused"})
+			 * @SuppressWarnings(value = "all")
+			 * @SuppressWarnings(value = {"all", "unused"})
+			 * @EqualsAndHashCode(callSuper=true, of="id")
+			 * 
+			 * Currently, we only seem to correctly support:
+			 * @Override
+			 * @Override() N.B. We lose the parentheses here, since there are no values. No big deal.
+			 * @SuppressWarnings("all")
+			 */
+			for (org.eclipse.jdt.core.dom.Annotation annotation : annotations) {
+				List<String> values = new ArrayList<String>();
+				if (annotation.isSingleMemberAnnotation()) {
+					org.eclipse.jdt.core.dom.SingleMemberAnnotation smAnn = (org.eclipse.jdt.core.dom.SingleMemberAnnotation) annotation;
+					values.add(smAnn.getValue().toString());
+				} else if (annotation.isNormalAnnotation()) {
+					org.eclipse.jdt.core.dom.NormalAnnotation normalAnn = (org.eclipse.jdt.core.dom.NormalAnnotation) annotation;
+					for (Object value : normalAnn.values()) values.add(value.toString());
+				}
+				
+				signature.append("@").append(annotation.resolveTypeBinding().getQualifiedName());
+				if (!values.isEmpty()) {
+					signature.append("(");
+					boolean first = true;
+					for (String string : values) {
+						if (!first) signature.append(", ");
+						first = false;
+						signature.append('"').append(string).append('"');
+					}
+					signature.append(")");
+				}
+				signature.append(" ");
+			}
+		}
+		
+		public static org.eclipse.jdt.core.dom.MethodDeclaration getRealMethodDeclarationNode(org.eclipse.jdt.core.IMethod sourceMethod, org.eclipse.jdt.core.dom.CompilationUnit cuUnit) throws JavaModelException {
+			MethodDeclaration methodDeclarationNode = ASTNodeSearchUtil.getMethodDeclarationNode(sourceMethod, cuUnit);
+			if (isGenerated(methodDeclarationNode)) {
+				IType declaringType = sourceMethod.getDeclaringType();
+				Stack<IType> typeStack = new Stack<IType>();
+				while (declaringType != null) {
+					typeStack.push(declaringType);
+					declaringType = declaringType.getDeclaringType();
+				}
+				
+				IType rootType = typeStack.pop();
+				org.eclipse.jdt.core.dom.AbstractTypeDeclaration typeDeclaration = findTypeDeclaration(rootType, cuUnit.types());
+				while (!typeStack.isEmpty() && typeDeclaration != null) {
+					typeDeclaration = findTypeDeclaration(typeStack.pop(), typeDeclaration.bodyDeclarations());
+				}
+				
+				if (typeStack.isEmpty() && typeDeclaration != null) {
+					String methodName = sourceMethod.getElementName();
+					for (Object declaration : typeDeclaration.bodyDeclarations()) {
+						if (declaration instanceof org.eclipse.jdt.core.dom.MethodDeclaration) {
+							org.eclipse.jdt.core.dom.MethodDeclaration methodDeclaration = (org.eclipse.jdt.core.dom.MethodDeclaration) declaration;
+							if (methodDeclaration.getName().toString().equals(methodName)) {
+								return methodDeclaration;
+							}
+						}
+					}
+				}
+			}
+			return methodDeclarationNode;
+		}
+		
+		// part of getRealMethodDeclarationNode
+		public static org.eclipse.jdt.core.dom.AbstractTypeDeclaration findTypeDeclaration(IType searchType, List<?> nodes) {
+			for (Object object : nodes) {
+				if (object instanceof org.eclipse.jdt.core.dom.AbstractTypeDeclaration) {
+					org.eclipse.jdt.core.dom.AbstractTypeDeclaration typeDeclaration = (org.eclipse.jdt.core.dom.AbstractTypeDeclaration) object;
+					if (typeDeclaration.getName().toString().equals(searchType.getElementName()))
+						return typeDeclaration;
+				}
+			}
+			return null;
+		}
+		
+		public static int getSourceEndFixed(int sourceEnd, org.eclipse.jdt.internal.compiler.ast.ASTNode node) throws Exception {
+			if (sourceEnd == -1) {
+				org.eclipse.jdt.internal.compiler.ast.ASTNode object = (org.eclipse.jdt.internal.compiler.ast.ASTNode)node.getClass().getField("$generatedBy").get(node);
+				if (object != null) {
+					return object.sourceEnd;
+				}
+			}
+			return sourceEnd;
+		}
+		
+		public static int fixRetrieveStartingCatchPosition(int original, int start) {
+			return original == -1 ? start : original;
+		}
+		
+		public static int fixRetrieveIdentifierEndPosition(int original, int end) {
+			return original == -1 ? end : original;
+		}
+		
+		public static int fixRetrieveEllipsisStartPosition(int original, int end) {
+			return original == -1 ? end : original;
+		}
+		
+		public static int fixRetrieveRightBraceOrSemiColonPosition(int original, int end) {
+			 return original == -1 ? end : original;  // Need to fix: see issue 325.
+		}
+		
+		public static final int ALREADY_PROCESSED_FLAG = 0x800000;  //Bit 24
+		
+		public static boolean checkBit24(Object node) throws Exception {
+			int bits = (Integer)(node.getClass().getField("bits").get(node));
+			return (bits & ALREADY_PROCESSED_FLAG) != 0;
+		}
+		
+		public static boolean skipRewritingGeneratedNodes(org.eclipse.jdt.core.dom.ASTNode node) throws Exception {
+			return ((Boolean) node.getClass().getField("$isGenerated").get(node)).booleanValue();
+		}
+		
+		public static void setIsGeneratedFlag(org.eclipse.jdt.core.dom.ASTNode domNode,
+				org.eclipse.jdt.internal.compiler.ast.ASTNode internalNode) throws Exception {
+			
+			if (internalNode == null || domNode == null) return;
+			boolean isGenerated = EclipseAugments.ASTNode_generatedBy.get(internalNode) != null;
+			if (isGenerated) domNode.getClass().getField("$isGenerated").set(domNode, true);
+		}
+		
+		public static void setIsGeneratedFlagForName(org.eclipse.jdt.core.dom.Name name, Object internalNode) throws Exception {
+			if (internalNode instanceof org.eclipse.jdt.internal.compiler.ast.ASTNode) {
+				boolean isGenerated = EclipseAugments.ASTNode_generatedBy.get((org.eclipse.jdt.internal.compiler.ast.ASTNode) internalNode) != null;
+				if (isGenerated) name.getClass().getField("$isGenerated").set(name, true);
+			}
+		}
+		
+		public static RewriteEvent[] listRewriteHandleGeneratedMethods(RewriteEvent parent) {
+			RewriteEvent[] children = parent.getChildren();
+			List<RewriteEvent> newChildren = new ArrayList<RewriteEvent>();
+			List<RewriteEvent> modifiedChildren = new ArrayList<RewriteEvent>();
+			for (int i = 0; i < children.length; i++) {
+				RewriteEvent child = children[i];
+				boolean isGenerated = isGenerated((org.eclipse.jdt.core.dom.ASTNode) child.getOriginalValue());
+				if (isGenerated) {
+					boolean isReplacedOrRemoved = child.getChangeKind() == RewriteEvent.REPLACED || child.getChangeKind() == RewriteEvent.REMOVED;
+					boolean convertingFromMethod = child.getOriginalValue() instanceof org.eclipse.jdt.core.dom.MethodDeclaration;
+					if (isReplacedOrRemoved && convertingFromMethod && child.getNewValue() != null) {
+						modifiedChildren.add(new NodeRewriteEvent(null, child.getNewValue()));
+					}
+				} else {
+					newChildren.add(child);
+				}
+			}
+			// Since Eclipse doesn't honor the "insert at specified location" for already existing members,
+			// we'll just add them last
+			newChildren.addAll(modifiedChildren);
+			return newChildren.toArray(new RewriteEvent[newChildren.size()]);
+		}
+		
+		public static int getTokenEndOffsetFixed(TokenScanner scanner, int token, int startOffset, Object domNode) throws CoreException {
+			boolean isGenerated = false;
+			try {
+				isGenerated = (Boolean) domNode.getClass().getField("$isGenerated").get(domNode);
+			} catch (Exception e) {
+				// If this fails, better to break some refactor scripts than to crash eclipse.
+			}
+			if (isGenerated) return -1;
+			return scanner.getTokenEndOffset(token, startOffset);
+		}
+		
+		public static IMethod[] removeGeneratedMethods(IMethod[] methods) throws Exception {
+			List<IMethod> result = new ArrayList<IMethod>();
+			for (IMethod m : methods) {
+				if (m.getNameRange().getLength() > 0 && !m.getNameRange().equals(m.getSourceRange())) result.add(m);
+			}
+			return result.size() == methods.length ? methods : result.toArray(new IMethod[result.size()]);
+		}
+		
+		public static SimpleName[] removeGeneratedSimpleNames(SimpleName[] in) throws Exception {
+			Field f = SimpleName.class.getField("$isGenerated");
+			
+			int count = 0;
+			for (int i = 0; i < in.length; i++) {
+				if (in[i] == null || !((Boolean)f.get(in[i])).booleanValue()) count++;
+			}
+			if (count == in.length) return in;
+			SimpleName[] newSimpleNames = new SimpleName[count];
+			count = 0;
+			for (int i = 0; i < in.length; i++) {
+				if (in[i] == null || !((Boolean)f.get(in[i])).booleanValue()) newSimpleNames[count++] = in[i];
+			}
+			return newSimpleNames;
+		}
+		
+		public static Annotation[] convertAnnotations(Annotation[] out, IAnnotatable annotatable) {
+			IAnnotation[] in;
+			
+			try {
+				in = annotatable.getAnnotations();
+			} catch (Exception e) {
+				return out;
+			}
+			
+			if (out == null) return null;
+			int toWrite = 0;
+			
+			for (int idx = 0; idx < out.length; idx++) {
+				String oName = new String(out[idx].type.getLastToken());
+				boolean found = false;
+				for (IAnnotation i : in) {
+					String name = i.getElementName();
+					int li = name.lastIndexOf('.');
+					if (li > -1) name = name.substring(li + 1);
+					if (name.equals(oName)) {
+						found = true;
+						break;
+					}
+				}
+				if (!found) out[idx] = null;
+				else toWrite++;
+			}
+			
+			Annotation[] replace = out;
+			if (toWrite < out.length) {
+				replace = new Annotation[toWrite];
+				int idx = 0;
+				for (int i = 0; i < out.length; i++) {
+					if (out[i] == null) continue;
+					replace[idx++] = out[i];
+				}
+			}
+			
+			return replace;
+		}
+	}
+}