Experiment to try and make java 'self referential' by deleting the Enter and MemberEnter state. So far it doesn't work yet.

This commit is contained in:
Reinier Zwitserloot committed 2010-11-09 20:35:34 +01:00
1 parent 04d041a7dc
commit 0951ea38fe
20 files changed
+130 -31

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@@ -1,5 +1,5 @@
/*
* Copyright © 2009-2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans.
* Copyright © 2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
+20 -19
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@@ -51,7 +51,7 @@ public class HandlerLibrary {
private final Map<String, AnnotationHandlerContainer<?>> annotationHandlers = new HashMap<String, AnnotationHandlerContainer<?>>();
private final Collection<JavacASTVisitor> visitorHandlers = new ArrayList<JavacASTVisitor>();
private final Messager messager;
private boolean skipPrintAST = true;
private int phase = 0;
/**
* Creates a new HandlerLibrary that will report any problems or errors to the provided messager.
@@ -70,6 +70,10 @@ public class HandlerLibrary {
this.annotationClass = annotationClass;
}
public boolean isResolutionBased() {
return handler.isResolutionBased();
}
public boolean handle(final JavacNode node) {
return handler.handle(Javac.createAnnotation(annotationClass, node), (JCAnnotation)node.get(), node);
}
@@ -160,12 +164,14 @@ public class HandlerLibrary {
boolean handled = false;
for (String fqn : resolver.findTypeMatches(node, rawType)) {
boolean isPrintAST = fqn.equals(PrintAST.class.getName());
if (isPrintAST == skipPrintAST) continue;
if (isPrintAST && phase != 2) continue;
if (!isPrintAST && phase == 2) continue;
AnnotationHandlerContainer<?> container = annotationHandlers.get(fqn);
if (container == null) continue;
try {
handled |= container.handle(node);
if (container.isResolutionBased() && phase == 1) handled |= container.handle(node);
if (!container.isResolutionBased() && phase == 0) handled |= container.handle(node);
} catch (AnnotationValueDecodeFail fail) {
fail.owner.setError(fail.getMessage(), fail.idx);
} catch (Throwable t) {
@@ -183,13 +189,8 @@ public class HandlerLibrary {
*/
public void callASTVisitors(JavacAST ast) {
for (JavacASTVisitor visitor : visitorHandlers) try {
if (!visitor.isResolutionBased()) ast.traverse(visitor);
} catch (Throwable t) {
javacError(String.format("Lombok visitor handler %s failed", visitor.getClass()), t);
}
for (JavacASTVisitor visitor : visitorHandlers) try {
if (visitor.isResolutionBased()) ast.traverse(visitor);
if (!visitor.isResolutionBased() && phase == 0) ast.traverse(visitor);
if (visitor.isResolutionBased() && phase == 1) ast.traverse(visitor);
} catch (Throwable t) {
javacError(String.format("Lombok visitor handler %s failed", visitor.getClass()), t);
}
@@ -197,17 +198,17 @@ public class HandlerLibrary {
/**
* Lombok does not currently support triggering annotations in a specified order; the order is essentially
* random right now. This lack of order is particularly annoying for the {@code PrintAST} annotation,
* which is almost always intended to run last. Hence, this hack, which lets it in fact run last.
*
* @see #skipAllButPrintAST()
* random right now. As a temporary hack we've identified 3 important phases.
*/
public void skipPrintAST() {
skipPrintAST = true;
public void setPreResolutionPhase() {
phase = 0;
}
/** @see #skipPrintAST() */
public void skipAllButPrintAST() {
skipPrintAST = false;
public void setPostResolutionPhase() {
phase = 1;
}
public void setPrintASTPhase() {
phase = 2;
}
}
@@ -55,4 +55,9 @@ public interface JavacAnnotationHandler<T extends Annotation> {
* compile session (you've handled it), or {@code false} to indicate you aren't done yet.
*/
boolean handle(AnnotationValues<T> annotation, JCAnnotation ast, JavacNode annotationNode);
/**
* Return true if this handler requires resolution.
*/
boolean isResolutionBased();
}
@@ -11,6 +11,7 @@ import javax.lang.model.type.TypeKind;
import javax.tools.DiagnosticListener;
import com.sun.tools.javac.code.BoundKind;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.code.Symbol.TypeSymbol;
import com.sun.tools.javac.code.Symtab;
import com.sun.tools.javac.code.Type.ArrayType;
+29 -5
View File
@@ -22,16 +22,18 @@
package lombok.javac;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.processing.Messager;
import com.sun.tools.javac.comp.Enter;
import com.sun.tools.javac.comp.MemberEnter;
import com.sun.tools.javac.tree.JCTree.JCAnnotation;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.List;
public class JavacTransformer {
private final HandlerLibrary handlers;
@@ -42,18 +44,39 @@ public class JavacTransformer {
this.handlers = HandlerLibrary.load(messager);
}
public boolean transform(Context context, Iterable<JCCompilationUnit> compilationUnits) {
List<JavacAST> asts = new ArrayList<JavacAST>();
public boolean transform(Context context, java.util.List<JCCompilationUnit> compilationUnitsRaw) {
List<JCCompilationUnit> compilationUnits;
if (compilationUnitsRaw instanceof List<?>) {
compilationUnits = (List<JCCompilationUnit>)compilationUnitsRaw;
} else {
compilationUnits = List.nil();
for (int i = compilationUnitsRaw.size() -1; i >= 0; i--) {
compilationUnits = compilationUnits.prepend(compilationUnitsRaw.get(i));
}
}
java.util.List<JavacAST> asts = new ArrayList<JavacAST>();
for (JCCompilationUnit unit : compilationUnits) asts.add(new JavacAST(messager, context, unit));
handlers.skipPrintAST();
handlers.setPreResolutionPhase();
for (JavacAST ast : asts) {
ast.traverse(new AnnotationVisitor());
handlers.callASTVisitors(ast);
}
handlers.skipAllButPrintAST();
context.put(Enter.class, (Enter) null);
context.put(MemberEnter.class, (MemberEnter) null);
Enter.instance(context).main(compilationUnits);
handlers.setPostResolutionPhase();
for (JavacAST ast : asts) {
ast.traverse(new AnnotationVisitor());
handlers.callASTVisitors(ast);
}
handlers.setPrintASTPhase();
for (JavacAST ast : asts) {
ast.traverse(new AnnotationVisitor());
}
@@ -61,6 +84,7 @@ public class JavacTransformer {
for (JavacAST ast : asts) {
if (ast.isChanged()) return true;
}
return false;
}
+2 -1
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@@ -26,6 +26,7 @@ import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.IdentityHashMap;
import java.util.Map;
@@ -172,7 +173,7 @@ public class Processor extends AbstractProcessor {
if (unit != null) units.put(unit, null);
}
transformer.transform(processingEnv.getContext(), units.keySet());
transformer.transform(processingEnv.getContext(), new ArrayList<JCCompilationUnit>(units.keySet()));
return false;
}
@@ -1,5 +1,5 @@
/*
* Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
* Copyright © 2009-2010 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
@@ -154,4 +154,8 @@ public class HandleCleanup implements JavacAnnotationHandler<Cleanup> {
}
}
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -69,6 +69,10 @@ public class HandleConstructor {
new HandleConstructor().generateConstructor(typeNode, level, fields, staticName, false, false);
return true;
}
@Override public boolean isResolutionBased() {
return false;
}
}
@ProviderFor(JavacAnnotationHandler.class)
@@ -86,6 +90,10 @@ public class HandleConstructor {
new HandleConstructor().generateConstructor(typeNode, level, findRequiredFields(typeNode), staticName, false, suppressConstructorProperties);
return true;
}
@Override public boolean isResolutionBased() {
return false;
}
}
private static List<JavacNode> findRequiredFields(JavacNode typeNode) {
@@ -131,6 +139,10 @@ public class HandleConstructor {
new HandleConstructor().generateConstructor(typeNode, level, fields, staticName, false, suppressConstructorProperties);
return true;
}
@Override public boolean isResolutionBased() {
return false;
}
}
public void generateRequiredArgsConstructor(JavacNode typeNode, AccessLevel level, String staticName, boolean skipIfConstructorExists) {
@@ -63,4 +63,8 @@ public class HandleData implements JavacAnnotationHandler<Data> {
return true;
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -479,4 +479,8 @@ public class HandleEqualsAndHashCode implements JavacAnnotationHandler<EqualsAnd
private JCStatement returnBool(TreeMaker maker, boolean bool) {
return maker.Return(maker.Literal(TypeTags.BOOLEAN, bool ? 1 : 0));
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -202,4 +202,8 @@ public class HandleGetter implements JavacAnnotationHandler<Getter> {
return treeMaker.MethodDef(treeMaker.Modifiers(access, nonNulls.appendList(nullables)), methodName, methodType,
methodGenericParams, parameters, throwsClauses, methodBody, annotationMethodDefaultValue);
}
@Override public boolean isResolutionBased() {
return false;
}
}
+17 -1
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@@ -121,6 +121,10 @@ public class HandleLog {
@Override public boolean handle(AnnotationValues<lombok.extern.apachecommons.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.COMMONS, annotation, annotationNode);
}
@Override public boolean isResolutionBased() {
return false;
}
}
/**
@@ -131,7 +135,11 @@ public class HandleLog {
@Override public boolean handle(AnnotationValues<lombok.extern.jul.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.JUL, annotation, annotationNode);
}
}
@Override public boolean isResolutionBased() {
return false;
}
}
/**
* Handles the {@link lombok.extern.log4j.Log} annotation for javac.
@@ -141,6 +149,10 @@ public class HandleLog {
@Override public boolean handle(AnnotationValues<lombok.extern.log4j.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.LOG4J, annotation, annotationNode);
}
@Override public boolean isResolutionBased() {
return false;
}
}
/**
@@ -151,6 +163,10 @@ public class HandleLog {
@Override public boolean handle(AnnotationValues<lombok.extern.slf4j.Log> annotation, JCAnnotation ast, JavacNode annotationNode) {
return processAnnotation(LoggingFramework.SLF4J, annotation, annotationNode);
}
@Override public boolean isResolutionBased() {
return false;
}
}
enum LoggingFramework {
@@ -54,4 +54,8 @@ public class HandlePrintAST implements JavacAnnotationHandler<PrintAST> {
return true;
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -238,4 +238,8 @@ public class HandleSetter implements JavacAnnotationHandler<Setter> {
return v.visitNoType(this, p);
}
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -110,4 +110,8 @@ public class HandleSneakyThrows implements JavacAnnotationHandler<SneakyThrows>
return maker.Try(tryBlock, List.of(maker.Catch(catchParam, catchBody)), null);
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -107,4 +107,8 @@ public class HandleSynchronized implements JavacAnnotationHandler<Synchronized>
return true;
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -247,4 +247,8 @@ public class HandleToString implements JavacAnnotationHandler<ToString> {
}
return typeName;
}
@Override public boolean isResolutionBased() {
return false;
}
}
@@ -1,5 +1,5 @@
/*
* Copyright © 2010 Reinier Zwitserloot and Roel Spilker.
* Copyright © 2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ -31,8 +31,10 @@ import org.mangosdk.spi.ProviderFor;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
import com.sun.tools.javac.tree.JCTree.JCEnhancedForLoop;
import com.sun.tools.javac.tree.JCTree.JCExpression;
import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
import com.sun.tools.javac.tree.JCTree.JCNewArray;
import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
+2 -1
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@@ -383,7 +383,8 @@ public class Delombok {
compiler.enterTrees(toJavacList(roots));
for (JCCompilationUnit unit : roots) {
boolean changed = new JavacTransformer(messager).transform(context, Collections.singleton(unit));
// Run one single massive transform instead of a lot of singleton calls, as this causes a heck of a lot of refilling of the enter cache.
boolean changed = new JavacTransformer(messager).transform(context, Collections.singletonList(unit));
DelombokResult result = new DelombokResult(commentsMap.get(unit).comments, unit, force || changed);
if (verbose) feedback.printf("File: %s [%s]\n", unit.sourcefile.getName(), result.isChanged() ? "delomboked" : "unchanged");
Writer rawWriter;
@@ -69,7 +69,7 @@ public class NetbeansEntryPoint implements TaskListener {
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));
transformer.transform(context, Collections.singletonList(compilationUnit));
}
}
}