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-rw-r--r--src/core/lombok/core/HandlerPriority.java30
-rw-r--r--src/core/lombok/javac/HandlerLibrary.java29
-rw-r--r--src/core/lombok/javac/JavacTransformer.java6
-rw-r--r--src/core/lombok/javac/ResolutionResetNeeded.java37
-rw-r--r--src/core/lombok/javac/apt/Processor.java68
-rw-r--r--src/core/lombok/javac/handlers/HandleDelegate.java2
-rw-r--r--src/core/lombok/javac/handlers/HandleVal.java2
7 files changed, 144 insertions, 30 deletions
diff --git a/src/core/lombok/core/HandlerPriority.java b/src/core/lombok/core/HandlerPriority.java
index 174d02d4..935b162d 100644
--- a/src/core/lombok/core/HandlerPriority.java
+++ b/src/core/lombok/core/HandlerPriority.java
@@ -1,3 +1,24 @@
+/*
+ * Copyright (C) 2012 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.core;
import java.lang.annotation.ElementType;
@@ -5,6 +26,15 @@ import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
+/**
+ * Used to order the way handlers are run. Handlers with a lower priority value are run before handlers with higher priority values.
+ * For example, {@code @Value} can cause the class to be marked final, and this affects the behaviour of {@code @EqualsAndHashCode}. By ensuring that
+ * the handler for {@code @Value} always runs before the handler for {@code @EqualsAndHashCode}, the code is simpler: The {@code @EqualsAndHashCode} handler
+ * does not have to check for the presence of a {@code @Value} annotation to determine whether to generate the {@code canEqual} method or not.
+ * <p>
+ * A new priority level can also be used to force a reset of the resolved model, i.e. to add generated methods to the symbol tables. Each platform implementation (javac, ecj, etc)
+ * may have additional marker annotations required to indicate the need for the reset.
+ */
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface HandlerPriority {
diff --git a/src/core/lombok/javac/HandlerLibrary.java b/src/core/lombok/javac/HandlerLibrary.java
index 1ce083f3..81618070 100644
--- a/src/core/lombok/javac/HandlerLibrary.java
+++ b/src/core/lombok/javac/HandlerLibrary.java
@@ -69,28 +69,36 @@ public class HandlerLibrary {
private static class VisitorContainer {
private final JavacASTVisitor visitor;
private final long priority;
+ private final boolean resolutionResetNeeded;
VisitorContainer(JavacASTVisitor visitor) {
this.visitor = visitor;
HandlerPriority hp = visitor.getClass().getAnnotation(HandlerPriority.class);
this.priority = hp == null ? 0L : (((long)hp.value()) << 32) + hp.subValue();
+ this.resolutionResetNeeded = visitor.getClass().isAnnotationPresent(ResolutionResetNeeded.class);
}
public long getPriority() {
return priority;
}
+
+ public boolean isResolutionResetNeeded() {
+ return resolutionResetNeeded;
+ }
}
private static class AnnotationHandlerContainer<T extends Annotation> {
private final JavacAnnotationHandler<T> handler;
private final Class<T> annotationClass;
private final long priority;
+ private final boolean resolutionResetNeeded;
AnnotationHandlerContainer(JavacAnnotationHandler<T> handler, Class<T> annotationClass) {
this.handler = handler;
this.annotationClass = annotationClass;
HandlerPriority hp = handler.getClass().getAnnotation(HandlerPriority.class);
this.priority = hp == null ? 0L : (((long)hp.value()) << 32) + hp.subValue();
+ this.resolutionResetNeeded = handler.getClass().isAnnotationPresent(ResolutionResetNeeded.class);
}
public void handle(final JavacNode node) {
@@ -100,19 +108,36 @@ public class HandlerLibrary {
public long getPriority() {
return priority;
}
+
+ public boolean isResolutionResetNeeded() {
+ return resolutionResetNeeded;
+ }
}
private SortedSet<Long> priorities;
+ private SortedSet<Long> prioritiesRequiringResolutionReset;
public SortedSet<Long> getPriorities() {
return priorities;
}
+ public SortedSet<Long> getPrioritiesRequiringResolutionReset() {
+ return prioritiesRequiringResolutionReset;
+ }
+
private void calculatePriorities() {
SortedSet<Long> set = new TreeSet<Long>();
- for (AnnotationHandlerContainer<?> container : annotationHandlers.values()) set.add(container.getPriority());
- for (VisitorContainer container : visitorHandlers) set.add(container.getPriority());
+ SortedSet<Long> resetNeeded = new TreeSet<Long>();
+ for (AnnotationHandlerContainer<?> container : annotationHandlers.values()) {
+ set.add(container.getPriority());
+ if (container.isResolutionResetNeeded()) resetNeeded.add(container.getPriority());
+ }
+ for (VisitorContainer container : visitorHandlers) {
+ set.add(container.getPriority());
+ if (container.isResolutionResetNeeded()) resetNeeded.add(container.getPriority());
+ }
this.priorities = Collections.unmodifiableSortedSet(set);
+ this.prioritiesRequiringResolutionReset = Collections.unmodifiableSortedSet(resetNeeded);
}
/**
diff --git a/src/core/lombok/javac/JavacTransformer.java b/src/core/lombok/javac/JavacTransformer.java
index 9cac787c..004a6035 100644
--- a/src/core/lombok/javac/JavacTransformer.java
+++ b/src/core/lombok/javac/JavacTransformer.java
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2009-2011 The Project Lombok Authors.
+ * Copyright (C) 2009-2012 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
@@ -47,6 +47,10 @@ public class JavacTransformer {
return handlers.getPriorities();
}
+ public SortedSet<Long> getPrioritiesRequiringResolutionReset() {
+ return handlers.getPrioritiesRequiringResolutionReset();
+ }
+
public void transform(long priority, Context context, java.util.List<JCCompilationUnit> compilationUnitsRaw) {
List<JCCompilationUnit> compilationUnits;
if (compilationUnitsRaw instanceof List<?>) {
diff --git a/src/core/lombok/javac/ResolutionResetNeeded.java b/src/core/lombok/javac/ResolutionResetNeeded.java
new file mode 100644
index 00000000..dc482e15
--- /dev/null
+++ b/src/core/lombok/javac/ResolutionResetNeeded.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 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.javac;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Marks the annotated handler as needing a reset on the resolved model (resulting in generated methods' signatures from becoming part of the symbol table and such) before
+ * the priority level of this handler is reached.
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface ResolutionResetNeeded {
+
+}
diff --git a/src/core/lombok/javac/apt/Processor.java b/src/core/lombok/javac/apt/Processor.java
index 190a369b..94e0e644 100644
--- a/src/core/lombok/javac/apt/Processor.java
+++ b/src/core/lombok/javac/apt/Processor.java
@@ -29,6 +29,7 @@ import java.lang.reflect.Method;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
+import java.util.HashSet;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map;
@@ -85,10 +86,12 @@ public class Processor extends AbstractProcessor {
SortedSet<Long> p = transformer.getPriorities();
if (p.isEmpty()) {
this.priorityLevels = new long[] {0L};
+ this.priorityLevelsRequiringResolutionReset = new HashSet<Long>();
} else {
this.priorityLevels = new long[p.size()];
int i = 0;
for (Long prio : p) this.priorityLevels[i++] = prio;
+ this.priorityLevelsRequiringResolutionReset = transformer.getPrioritiesRequiringResolutionReset();
}
}
@@ -216,6 +219,7 @@ public class Processor extends AbstractProcessor {
private final IdentityHashMap<JCCompilationUnit, Long> roots = new IdentityHashMap<JCCompilationUnit, Long>();
private long[] priorityLevels;
+ private Set<Long> priorityLevelsRequiringResolutionReset;
/** {@inheritDoc} */
@Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
@@ -232,37 +236,47 @@ public class Processor extends AbstractProcessor {
roots.put(unit, priorityLevels[0]);
}
- // Step 2: For all CUs (in the map, not the roundEnv!), run them across all handlers at their current prio level.
-
- for (long prio : priorityLevels) {
- List<JCCompilationUnit> cusForThisRound = new ArrayList<JCCompilationUnit>();
- for (Map.Entry<JCCompilationUnit, Long> entry : roots.entrySet()) {
- Long prioOfCu = entry.getValue();
- if (prioOfCu == null || prioOfCu != prio) continue;
- cusForThisRound.add(entry.getKey());
+ while (true) {
+ // Step 2: For all CUs (in the map, not the roundEnv!), run them across all handlers at their current prio level.
+
+ for (long prio : priorityLevels) {
+ List<JCCompilationUnit> cusForThisRound = new ArrayList<JCCompilationUnit>();
+ for (Map.Entry<JCCompilationUnit, Long> entry : roots.entrySet()) {
+ Long prioOfCu = entry.getValue();
+ if (prioOfCu == null || prioOfCu != prio) continue;
+ cusForThisRound.add(entry.getKey());
+ }
+ transformer.transform(prio, processingEnv.getContext(), cusForThisRound);
}
- transformer.transform(prio, processingEnv.getContext(), cusForThisRound);
- }
-
- // Step 3: Push up all CUs to the next level. Set level to null if there is no next level.
-
- boolean nextRoundNeeded = false;
- for (int i = priorityLevels.length - 1; i >= 0; i--) {
- Long curLevel = priorityLevels[i];
- Long nextLevel = (i == priorityLevels.length - 1) ? null : priorityLevels[i + 1];
- for (Map.Entry<JCCompilationUnit, Long> entry : roots.entrySet()) {
- if (curLevel.equals(entry.getValue())) {
- entry.setValue(nextLevel);
- if (nextLevel != null) nextRoundNeeded = true;
+
+ // Step 3: Push up all CUs to the next level. Set level to null if there is no next level.
+
+ Set<Long> newLevels = new HashSet<Long>();
+ for (int i = priorityLevels.length - 1; i >= 0; i--) {
+ Long curLevel = priorityLevels[i];
+ Long nextLevel = (i == priorityLevels.length - 1) ? null : priorityLevels[i + 1];
+ for (Map.Entry<JCCompilationUnit, Long> entry : roots.entrySet()) {
+ if (curLevel.equals(entry.getValue())) {
+ entry.setValue(nextLevel);
+ newLevels.add(nextLevel);
+ }
}
}
+ newLevels.remove(null);
+
+ // Step 4: If ALL values are null, quit. Else, either do another loop right now or force a resolution reset by forcing a new round in the annotation processor.
+
+ if (newLevels.isEmpty()) return false;
+ newLevels.retainAll(priorityLevelsRequiringResolutionReset);
+ if (newLevels.isEmpty()) {
+ // None of the new levels need resolution, so just keep going.
+ continue;
+ } else {
+ // Force a new round to reset resolution. The next round will cause this method (process) to be called again.
+ forceNewRound((JavacFiler) processingEnv.getFiler());
+ return false;
+ }
}
-
- // Step 4: If ALL values are null, quit. Else, force new round.
-
- if (nextRoundNeeded) forceNewRound((JavacFiler) processingEnv.getFiler());
-
- return false;
}
private int dummyCount = 0;
diff --git a/src/core/lombok/javac/handlers/HandleDelegate.java b/src/core/lombok/javac/handlers/HandleDelegate.java
index b693a2a3..644b03fb 100644
--- a/src/core/lombok/javac/handlers/HandleDelegate.java
+++ b/src/core/lombok/javac/handlers/HandleDelegate.java
@@ -48,6 +48,7 @@ import lombok.javac.FindTypeVarScanner;
import lombok.javac.JavacAnnotationHandler;
import lombok.javac.JavacNode;
import lombok.javac.JavacResolution;
+import lombok.javac.ResolutionResetNeeded;
import lombok.javac.JavacResolution.TypeNotConvertibleException;
import org.mangosdk.spi.ProviderFor;
@@ -76,6 +77,7 @@ import com.sun.tools.javac.util.Name;
@ProviderFor(JavacAnnotationHandler.class)
@HandlerPriority(65536) //2^16; to make sure that we also delegate generated methods.
+@ResolutionResetNeeded
public class HandleDelegate extends JavacAnnotationHandler<Delegate> {
private static final List<String> METHODS_IN_OBJECT = Collections.unmodifiableList(Arrays.asList(
"hashCode()",
diff --git a/src/core/lombok/javac/handlers/HandleVal.java b/src/core/lombok/javac/handlers/HandleVal.java
index 0ab9d783..d7a31708 100644
--- a/src/core/lombok/javac/handlers/HandleVal.java
+++ b/src/core/lombok/javac/handlers/HandleVal.java
@@ -29,6 +29,7 @@ import lombok.javac.JavacASTAdapter;
import lombok.javac.JavacASTVisitor;
import lombok.javac.JavacNode;
import lombok.javac.JavacResolution;
+import lombok.javac.ResolutionResetNeeded;
import org.mangosdk.spi.ProviderFor;
@@ -45,6 +46,7 @@ import com.sun.tools.javac.util.List;
@ProviderFor(JavacASTVisitor.class)
@HandlerPriority(65536) // 2^16; resolution needs to work, so if the RHS expression is i.e. a call to a generated getter, we have to run after that getter has been generated.
+@ResolutionResetNeeded
public class HandleVal extends JavacASTAdapter {
@Override public void visitLocal(JavacNode localNode, JCVariableDecl local) {
if (local.vartype == null || (!local.vartype.toString().equals("val") && !local.vartype.toString().equals("lombok.val"))) return;