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authorReinier Zwitserloot <reinier@tipit.to>2009-11-25 07:32:49 +0100
committerReinier Zwitserloot <reinier@tipit.to>2009-11-25 07:32:49 +0100
commit1a0e611a9c5e1ee518670647ce1a44beae559b44 (patch)
treee5ef8f671bc6688f486e874d4e2e1a7813e4f0b2 /src/core/lombok/javac/handlers
parent7fd947ea40c25dad9ee543ebc4b92de9a2e05efc (diff)
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Refactored the source folders.
Diffstat (limited to 'src/core/lombok/javac/handlers')
-rw-r--r--src/core/lombok/javac/handlers/HandleCleanup.java147
-rw-r--r--src/core/lombok/javac/handlers/HandleData.java186
-rw-r--r--src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java447
-rw-r--r--src/core/lombok/javac/handlers/HandleGetter.java143
-rw-r--r--src/core/lombok/javac/handlers/HandlePrintAST.java57
-rw-r--r--src/core/lombok/javac/handlers/HandleSetter.java153
-rw-r--r--src/core/lombok/javac/handlers/HandleSneakyThrows.java110
-rw-r--r--src/core/lombok/javac/handlers/HandleSynchronized.java102
-rw-r--r--src/core/lombok/javac/handlers/HandleToString.java237
-rw-r--r--src/core/lombok/javac/handlers/JavacHandlerUtil.java335
-rw-r--r--src/core/lombok/javac/handlers/package-info.java26
11 files changed, 1943 insertions, 0 deletions
diff --git a/src/core/lombok/javac/handlers/HandleCleanup.java b/src/core/lombok/javac/handlers/HandleCleanup.java
new file mode 100644
index 00000000..88a8e1d7
--- /dev/null
+++ b/src/core/lombok/javac/handlers/HandleCleanup.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright © 2009 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
+ * 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.handlers;
+
+import lombok.Cleanup;
+import lombok.core.AnnotationValues;
+import lombok.core.AST.Kind;
+import lombok.javac.JavacAnnotationHandler;
+import lombok.javac.JavacNode;
+
+import org.mangosdk.spi.ProviderFor;
+
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.tree.TreeMaker;
+import com.sun.tools.javac.tree.JCTree.JCAnnotation;
+import com.sun.tools.javac.tree.JCTree.JCAssign;
+import com.sun.tools.javac.tree.JCTree.JCBlock;
+import com.sun.tools.javac.tree.JCTree.JCCase;
+import com.sun.tools.javac.tree.JCTree.JCCatch;
+import com.sun.tools.javac.tree.JCTree.JCExpression;
+import com.sun.tools.javac.tree.JCTree.JCExpressionStatement;
+import com.sun.tools.javac.tree.JCTree.JCFieldAccess;
+import com.sun.tools.javac.tree.JCTree.JCIdent;
+import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
+import com.sun.tools.javac.tree.JCTree.JCStatement;
+import com.sun.tools.javac.tree.JCTree.JCTypeCast;
+import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
+import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.Name;
+
+/**
+ * Handles the {@code lombok.Cleanup} annotation for javac.
+ */
+@ProviderFor(JavacAnnotationHandler.class)
+public class HandleCleanup implements JavacAnnotationHandler<Cleanup> {
+ @Override public boolean handle(AnnotationValues<Cleanup> annotation, JCAnnotation ast, JavacNode annotationNode) {
+ String cleanupName = annotation.getInstance().value();
+ if (cleanupName.length() == 0) {
+ annotationNode.addError("cleanupName cannot be the empty string.");
+ return true;
+ }
+
+ if (annotationNode.up().getKind() != Kind.LOCAL) {
+ annotationNode.addError("@Cleanup is legal only on local variable declarations.");
+ return true;
+ }
+
+ JCVariableDecl decl = (JCVariableDecl)annotationNode.up().get();
+
+ if (decl.init == null) {
+ annotationNode.addError("@Cleanup variable declarations need to be initialized.");
+ return true;
+ }
+
+ JavacNode ancestor = annotationNode.up().directUp();
+ JCTree blockNode = ancestor.get();
+
+ final List<JCStatement> statements;
+ if (blockNode instanceof JCBlock) {
+ statements = ((JCBlock)blockNode).stats;
+ } else if (blockNode instanceof JCCase) {
+ statements = ((JCCase)blockNode).stats;
+ } else if (blockNode instanceof JCMethodDecl) {
+ statements = ((JCMethodDecl)blockNode).body.stats;
+ } else {
+ annotationNode.addError("@Cleanup is legal only on a local variable declaration inside a block.");
+ return true;
+ }
+
+ boolean seenDeclaration = false;
+ List<JCStatement> tryBlock = List.nil();
+ List<JCStatement> newStatements = List.nil();
+ for (JCStatement statement : statements) {
+ if (!seenDeclaration) {
+ if (statement == decl) seenDeclaration = true;
+ newStatements = newStatements.append(statement);
+ } else {
+ tryBlock = tryBlock.append(statement);
+ }
+ }
+
+ if (!seenDeclaration) {
+ annotationNode.addError("LOMBOK BUG: Can't find this local variable declaration inside its parent.");
+ return true;
+ }
+
+ doAssignmentCheck(annotationNode, tryBlock, decl.name);
+
+ TreeMaker maker = annotationNode.getTreeMaker();
+ JCFieldAccess cleanupCall = maker.Select(maker.Ident(decl.name), annotationNode.toName(cleanupName));
+ List<JCStatement> finalizerBlock = List.<JCStatement>of(maker.Exec(
+ maker.Apply(List.<JCExpression>nil(), cleanupCall, List.<JCExpression>nil())));
+
+ JCBlock finalizer = maker.Block(0, finalizerBlock);
+ newStatements = newStatements.append(maker.Try(maker.Block(0, tryBlock), List.<JCCatch>nil(), finalizer));
+
+ if (blockNode instanceof JCBlock) {
+ ((JCBlock)blockNode).stats = newStatements;
+ } else if (blockNode instanceof JCCase) {
+ ((JCCase)blockNode).stats = newStatements;
+ } else if (blockNode instanceof JCMethodDecl) {
+ ((JCMethodDecl)blockNode).body.stats = newStatements;
+ } else throw new AssertionError("Should not get here");
+
+ ancestor.rebuild();
+
+ return true;
+ }
+
+ private void doAssignmentCheck(JavacNode node, List<JCStatement> statements, Name name) {
+ for (JCStatement statement : statements) doAssignmentCheck0(node, statement, name);
+ }
+
+ private void doAssignmentCheck0(JavacNode node, JCTree statement, Name name) {
+ if (statement instanceof JCAssign) doAssignmentCheck0(node, ((JCAssign)statement).rhs, name);
+ if (statement instanceof JCExpressionStatement) doAssignmentCheck0(node,
+ ((JCExpressionStatement)statement).expr, name);
+ if (statement instanceof JCVariableDecl) doAssignmentCheck0(node, ((JCVariableDecl)statement).init, name);
+ if (statement instanceof JCTypeCast) doAssignmentCheck0(node, ((JCTypeCast)statement).expr, name);
+ if (statement instanceof JCIdent) {
+ if (((JCIdent)statement).name.contentEquals(name)) {
+ JavacNode problemNode = node.getNodeFor(statement);
+ if (problemNode != null) problemNode.addWarning(
+ "You're assigning an auto-cleanup variable to something else. This is a bad idea.");
+ }
+ }
+ }
+}
diff --git a/src/core/lombok/javac/handlers/HandleData.java b/src/core/lombok/javac/handlers/HandleData.java
new file mode 100644
index 00000000..eef7f78d
--- /dev/null
+++ b/src/core/lombok/javac/handlers/HandleData.java
@@ -0,0 +1,186 @@
+/*
+ * Copyright © 2009 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
+ * 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.handlers;
+
+import static lombok.javac.handlers.JavacHandlerUtil.*;
+
+import java.lang.reflect.Modifier;
+
+import lombok.Data;
+import lombok.core.AnnotationValues;
+import lombok.core.TransformationsUtil;
+import lombok.core.AST.Kind;
+import lombok.javac.JavacAnnotationHandler;
+import lombok.javac.JavacNode;
+import lombok.javac.handlers.JavacHandlerUtil.MemberExistsResult;
+
+import org.mangosdk.spi.ProviderFor;
+
+import com.sun.tools.javac.code.Flags;
+import com.sun.tools.javac.tree.TreeMaker;
+import com.sun.tools.javac.tree.JCTree.JCAnnotation;
+import com.sun.tools.javac.tree.JCTree.JCAssign;
+import com.sun.tools.javac.tree.JCTree.JCBlock;
+import com.sun.tools.javac.tree.JCTree.JCClassDecl;
+import com.sun.tools.javac.tree.JCTree.JCExpression;
+import com.sun.tools.javac.tree.JCTree.JCFieldAccess;
+import com.sun.tools.javac.tree.JCTree.JCIdent;
+import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
+import com.sun.tools.javac.tree.JCTree.JCModifiers;
+import com.sun.tools.javac.tree.JCTree.JCReturn;
+import com.sun.tools.javac.tree.JCTree.JCStatement;
+import com.sun.tools.javac.tree.JCTree.JCTypeApply;
+import com.sun.tools.javac.tree.JCTree.JCTypeParameter;
+import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
+import com.sun.tools.javac.util.List;
+
+/**
+ * Handles the {@code lombok.Data} annotation for javac.
+ */
+@ProviderFor(JavacAnnotationHandler.class)
+public class HandleData implements JavacAnnotationHandler<Data> {
+ @Override public boolean handle(AnnotationValues<Data> annotation, JCAnnotation ast, JavacNode annotationNode) {
+ JavacNode typeNode = annotationNode.up();
+ JCClassDecl typeDecl = null;
+ if (typeNode.get() instanceof JCClassDecl) typeDecl = (JCClassDecl)typeNode.get();
+ long flags = typeDecl == null ? 0 : typeDecl.mods.flags;
+ boolean notAClass = (flags & (Flags.INTERFACE | Flags.ENUM | Flags.ANNOTATION)) != 0;
+
+ if (typeDecl == null || notAClass) {
+ annotationNode.addError("@Data is only supported on a class.");
+ return false;
+ }
+
+ List<JavacNode> nodesForConstructor = List.nil();
+ for (JavacNode child : typeNode.down()) {
+ if (child.getKind() != Kind.FIELD) continue;
+ JCVariableDecl fieldDecl = (JCVariableDecl) child.get();
+ //Skip fields that start with $
+ if (fieldDecl.name.toString().startsWith("$")) continue;
+ long fieldFlags = fieldDecl.mods.flags;
+ //Skip static fields.
+ if ((fieldFlags & Flags.STATIC) != 0) continue;
+ boolean isFinal = (fieldFlags & Flags.FINAL) != 0;
+ boolean isNonNull = !findAnnotations(child, TransformationsUtil.NON_NULL_PATTERN).isEmpty();
+ if ((isFinal || isNonNull) && fieldDecl.init == null) nodesForConstructor = nodesForConstructor.append(child);
+ new HandleGetter().generateGetterForField(child, annotationNode.get());
+ if (!isFinal) new HandleSetter().generateSetterForField(child, annotationNode.get());
+ }
+
+ new HandleToString().generateToStringForType(typeNode, annotationNode);
+ new HandleEqualsAndHashCode().generateEqualsAndHashCodeForType(typeNode, annotationNode);
+
+ String staticConstructorName = annotation.getInstance().staticConstructor();
+
+ if (constructorExists(typeNode) == MemberExistsResult.NOT_EXISTS) {
+ JCMethodDecl constructor = createConstructor(staticConstructorName.equals(""), typeNode, nodesForConstructor);
+ injectMethod(typeNode, constructor);
+ }
+
+ if (!staticConstructorName.isEmpty() && methodExists("of", typeNode) == MemberExistsResult.NOT_EXISTS) {
+ JCMethodDecl staticConstructor = createStaticConstructor(staticConstructorName, typeNode, nodesForConstructor);
+ injectMethod(typeNode, staticConstructor);
+ }
+
+ return true;
+ }
+
+ private JCMethodDecl createConstructor(boolean isPublic, JavacNode typeNode, List<JavacNode> fields) {
+ TreeMaker maker = typeNode.getTreeMaker();
+ JCClassDecl type = (JCClassDecl) typeNode.get();
+
+ List<JCStatement> nullChecks = List.nil();
+ List<JCStatement> assigns = List.nil();
+ List<JCVariableDecl> params = List.nil();
+
+ for (JavacNode fieldNode : fields) {
+ JCVariableDecl field = (JCVariableDecl) fieldNode.get();
+ List<JCAnnotation> nonNulls = findAnnotations(fieldNode, TransformationsUtil.NON_NULL_PATTERN);
+ List<JCAnnotation> nullables = findAnnotations(fieldNode, TransformationsUtil.NULLABLE_PATTERN);
+ JCVariableDecl param = maker.VarDef(maker.Modifiers(Flags.FINAL, nonNulls.appendList(nullables)), field.name, field.vartype, null);
+ params = params.append(param);
+ JCFieldAccess thisX = maker.Select(maker.Ident(fieldNode.toName("this")), field.name);
+ JCAssign assign = maker.Assign(thisX, maker.Ident(field.name));
+ assigns = assigns.append(maker.Exec(assign));
+
+ if (!nonNulls.isEmpty()) {
+ JCStatement nullCheck = generateNullCheck(maker, fieldNode);
+ if (nullCheck != null) nullChecks = nullChecks.append(nullCheck);
+ }
+ }
+
+ JCModifiers mods = maker.Modifiers(isPublic ? Modifier.PUBLIC : Modifier.PRIVATE);
+ return maker.MethodDef(mods, typeNode.toName("<init>"),
+ null, type.typarams, params, List.<JCExpression>nil(), maker.Block(0L, nullChecks.appendList(assigns)), null);
+ }
+
+ private JCMethodDecl createStaticConstructor(String name, JavacNode typeNode, List<JavacNode> fields) {
+ TreeMaker maker = typeNode.getTreeMaker();
+ JCClassDecl type = (JCClassDecl) typeNode.get();
+
+ JCModifiers mods = maker.Modifiers(Flags.STATIC | Flags.PUBLIC);
+
+ JCExpression returnType, constructorType;
+
+ List<JCTypeParameter> typeParams = List.nil();
+ List<JCVariableDecl> params = List.nil();
+ List<JCExpression> typeArgs1 = List.nil();
+ List<JCExpression> typeArgs2 = List.nil();
+ List<JCExpression> args = List.nil();
+
+ if (!type.typarams.isEmpty()) {
+ for (JCTypeParameter param : type.typarams) {
+ typeArgs1 = typeArgs1.append(maker.Ident(param.name));
+ typeArgs2 = typeArgs2.append(maker.Ident(param.name));
+ typeParams = typeParams.append(maker.TypeParameter(param.name, param.bounds));
+ }
+ returnType = maker.TypeApply(maker.Ident(type.name), typeArgs1);
+ constructorType = maker.TypeApply(maker.Ident(type.name), typeArgs2);
+ } else {
+ returnType = maker.Ident(type.name);
+ constructorType = maker.Ident(type.name);
+ }
+
+ for (JavacNode fieldNode : fields) {
+ JCVariableDecl field = (JCVariableDecl) fieldNode.get();
+ JCExpression pType;
+ if (field.vartype instanceof JCIdent) pType = maker.Ident(((JCIdent)field.vartype).name);
+ else if (field.vartype instanceof JCTypeApply) {
+ JCTypeApply typeApply = (JCTypeApply) field.vartype;
+ List<JCExpression> tArgs = List.nil();
+ for (JCExpression arg : typeApply.arguments) tArgs = tArgs.append(arg);
+ pType = maker.TypeApply(typeApply.clazz, tArgs);
+ } else {
+ pType = field.vartype;
+ }
+ List<JCAnnotation> nonNulls = findAnnotations(fieldNode, TransformationsUtil.NON_NULL_PATTERN);
+ List<JCAnnotation> nullables = findAnnotations(fieldNode, TransformationsUtil.NULLABLE_PATTERN);
+ JCVariableDecl param = maker.VarDef(maker.Modifiers(Flags.FINAL, nonNulls.appendList(nullables)), field.name, pType, null);
+ params = params.append(param);
+ args = args.append(maker.Ident(field.name));
+ }
+ JCReturn returnStatement = maker.Return(maker.NewClass(null, List.<JCExpression>nil(), constructorType, args, null));
+ JCBlock body = maker.Block(0, List.<JCStatement>of(returnStatement));
+
+ return maker.MethodDef(mods, typeNode.toName(name), returnType, typeParams, params, List.<JCExpression>nil(), body, null);
+ }
+}
diff --git a/src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java b/src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java
new file mode 100644
index 00000000..61a4ef63
--- /dev/null
+++ b/src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java
@@ -0,0 +1,447 @@
+/*
+ * Copyright © 2009 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
+ * 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.handlers;
+
+import static lombok.javac.handlers.JavacHandlerUtil.*;
+import lombok.EqualsAndHashCode;
+import lombok.core.AnnotationValues;
+import lombok.core.AST.Kind;
+import lombok.javac.Javac;
+import lombok.javac.JavacAnnotationHandler;
+import lombok.javac.JavacNode;
+
+import org.mangosdk.spi.ProviderFor;
+
+import com.sun.tools.javac.code.BoundKind;
+import com.sun.tools.javac.code.Flags;
+import com.sun.tools.javac.code.TypeTags;
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.tree.TreeMaker;
+import com.sun.tools.javac.tree.JCTree.JCAnnotation;
+import com.sun.tools.javac.tree.JCTree.JCArrayTypeTree;
+import com.sun.tools.javac.tree.JCTree.JCBinary;
+import com.sun.tools.javac.tree.JCTree.JCBlock;
+import com.sun.tools.javac.tree.JCTree.JCClassDecl;
+import com.sun.tools.javac.tree.JCTree.JCExpression;
+import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
+import com.sun.tools.javac.tree.JCTree.JCMethodInvocation;
+import com.sun.tools.javac.tree.JCTree.JCModifiers;
+import com.sun.tools.javac.tree.JCTree.JCPrimitiveTypeTree;
+import com.sun.tools.javac.tree.JCTree.JCStatement;
+import com.sun.tools.javac.tree.JCTree.JCTypeParameter;
+import com.sun.tools.javac.tree.JCTree.JCUnary;
+import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
+import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.Name;
+
+/**
+ * Handles the {@code lombok.EqualsAndHashCode} annotation for javac.
+ */
+@ProviderFor(JavacAnnotationHandler.class)
+public class HandleEqualsAndHashCode implements JavacAnnotationHandler<EqualsAndHashCode> {
+ private void checkForBogusFieldNames(JavacNode type, AnnotationValues<EqualsAndHashCode> annotation) {
+ if (annotation.isExplicit("exclude")) {
+ for (int i : createListOfNonExistentFields(List.from(annotation.getInstance().exclude()), type, true, true)) {
+ annotation.setWarning("exclude", "This field does not exist, or would have been excluded anyway.", i);
+ }
+ }
+ if (annotation.isExplicit("of")) {
+ for (int i : createListOfNonExistentFields(List.from(annotation.getInstance().of()), type, false, false)) {
+ annotation.setWarning("of", "This field does not exist.", i);
+ }
+ }
+ }
+
+ @Override public boolean handle(AnnotationValues<EqualsAndHashCode> annotation, JCAnnotation ast, JavacNode annotationNode) {
+ EqualsAndHashCode ann = annotation.getInstance();
+ List<String> excludes = List.from(ann.exclude());
+ List<String> includes = List.from(ann.of());
+ JavacNode typeNode = annotationNode.up();
+
+ checkForBogusFieldNames(typeNode, annotation);
+
+ Boolean callSuper = ann.callSuper();
+ if (!annotation.isExplicit("callSuper")) callSuper = null;
+ if (!annotation.isExplicit("exclude")) excludes = null;
+ if (!annotation.isExplicit("of")) includes = null;
+
+ if (excludes != null && includes != null) {
+ excludes = null;
+ annotation.setWarning("exclude", "exclude and of are mutually exclusive; the 'exclude' parameter will be ignored.");
+ }
+
+ return generateMethods(typeNode, annotationNode, excludes, includes, callSuper, true);
+ }
+
+ public void generateEqualsAndHashCodeForType(JavacNode typeNode, JavacNode errorNode) {
+ for (JavacNode child : typeNode.down()) {
+ if (child.getKind() == Kind.ANNOTATION) {
+ if (Javac.annotationTypeMatches(EqualsAndHashCode.class, child)) {
+ //The annotation will make it happen, so we can skip it.
+ return;
+ }
+ }
+ }
+
+ generateMethods(typeNode, errorNode, null, null, null, false);
+ }
+
+ private boolean generateMethods(JavacNode typeNode, JavacNode errorNode, List<String> excludes, List<String> includes,
+ Boolean callSuper, boolean whineIfExists) {
+ boolean notAClass = true;
+ if (typeNode.get() instanceof JCClassDecl) {
+ long flags = ((JCClassDecl)typeNode.get()).mods.flags;
+ notAClass = (flags & (Flags.INTERFACE | Flags.ANNOTATION | Flags.ENUM)) != 0;
+ }
+
+ if (notAClass) {
+ errorNode.addError("@EqualsAndHashCode is only supported on a class.");
+ return false;
+ }
+
+ boolean isDirectDescendantOfObject = true;
+ boolean implicitCallSuper = callSuper == null;
+ if (callSuper == null) {
+ try {
+ callSuper = ((Boolean)EqualsAndHashCode.class.getMethod("callSuper").getDefaultValue()).booleanValue();
+ } catch (Exception ignore) {
+ throw new InternalError("Lombok bug - this cannot happen - can't find callSuper field in EqualsAndHashCode annotation.");
+ }
+ }
+
+ JCTree extending = ((JCClassDecl)typeNode.get()).extending;
+ if (extending != null) {
+ String p = extending.toString();
+ isDirectDescendantOfObject = p.equals("Object") || p.equals("java.lang.Object");
+ }
+
+ if (isDirectDescendantOfObject && callSuper) {
+ errorNode.addError("Generating equals/hashCode with a supercall to java.lang.Object is pointless.");
+ return true;
+ }
+
+ if (!isDirectDescendantOfObject && !callSuper && implicitCallSuper) {
+ errorNode.addWarning("Generating equals/hashCode implementation but without a call to superclass, even though this class does not extend java.lang.Object. If this is intentional, add '@EqualsAndHashCode(callSuper=false)' to your type.");
+ }
+
+ List<JavacNode> nodesForEquality = List.nil();
+ if (includes != null) {
+ for (JavacNode child : typeNode.down()) {
+ if (child.getKind() != Kind.FIELD) continue;
+ JCVariableDecl fieldDecl = (JCVariableDecl) child.get();
+ if (includes.contains(fieldDecl.name.toString())) nodesForEquality = nodesForEquality.append(child);
+ }
+ } else {
+ for (JavacNode child : typeNode.down()) {
+ if (child.getKind() != Kind.FIELD) continue;
+ JCVariableDecl fieldDecl = (JCVariableDecl) child.get();
+ //Skip static fields.
+ if ((fieldDecl.mods.flags & Flags.STATIC) != 0) continue;
+ //Skip transient fields.
+ if ((fieldDecl.mods.flags & Flags.TRANSIENT) != 0) continue;
+ //Skip excluded fields.
+ if (excludes != null && excludes.contains(fieldDecl.name.toString())) continue;
+ //Skip fields that start with $
+ if (fieldDecl.name.toString().startsWith("$")) continue;
+ nodesForEquality = nodesForEquality.append(child);
+ }
+ }
+
+ switch (methodExists("hashCode", typeNode)) {
+ case NOT_EXISTS:
+ JCMethodDecl method = createHashCode(typeNode, nodesForEquality, callSuper);
+ injectMethod(typeNode, method);
+ break;
+ case EXISTS_BY_LOMBOK:
+ break;
+ default:
+ case EXISTS_BY_USER:
+ if (whineIfExists) {
+ errorNode.addWarning("Not generating hashCode(): A method with that name already exists");
+ }
+ break;
+ }
+
+ switch (methodExists("equals", typeNode)) {
+ case NOT_EXISTS:
+ JCMethodDecl method = createEquals(typeNode, nodesForEquality, callSuper);
+ injectMethod(typeNode, method);
+ break;
+ case EXISTS_BY_LOMBOK:
+ break;
+ default:
+ case EXISTS_BY_USER:
+ if (whineIfExists) {
+ errorNode.addWarning("Not generating equals(Object other): A method with that name already exists");
+ }
+ break;
+ }
+
+ return true;
+ }
+
+ private JCMethodDecl createHashCode(JavacNode typeNode, List<JavacNode> fields, boolean callSuper) {
+ TreeMaker maker = typeNode.getTreeMaker();
+
+ JCAnnotation overrideAnnotation = maker.Annotation(chainDots(maker, typeNode, "java", "lang", "Override"), List.<JCExpression>nil());
+ JCModifiers mods = maker.Modifiers(Flags.PUBLIC, List.of(overrideAnnotation));
+ JCExpression returnType = maker.TypeIdent(TypeTags.INT);
+ List<JCStatement> statements = List.nil();
+
+ Name primeName = typeNode.toName("PRIME");
+ Name resultName = typeNode.toName("result");
+ /* final int PRIME = 31; */ {
+ if (!fields.isEmpty() || callSuper) {
+ statements = statements.append(maker.VarDef(maker.Modifiers(Flags.FINAL),
+ primeName, maker.TypeIdent(TypeTags.INT), maker.Literal(31)));
+ }
+ }
+
+ /* int result = 1; */ {
+ statements = statements.append(maker.VarDef(maker.Modifiers(0), resultName, maker.TypeIdent(TypeTags.INT), maker.Literal(1)));
+ }
+
+ List<JCExpression> intoResult = List.nil();
+
+ if (callSuper) {
+ JCMethodInvocation callToSuper = maker.Apply(List.<JCExpression>nil(),
+ maker.Select(maker.Ident(typeNode.toName("super")), typeNode.toName("hashCode")),
+ List.<JCExpression>nil());
+ intoResult = intoResult.append(callToSuper);
+ }
+
+ int tempCounter = 0;
+ for (JavacNode fieldNode : fields) {
+ JCVariableDecl field = (JCVariableDecl) fieldNode.get();
+ JCExpression fType = field.vartype;
+ JCExpression thisDotField = maker.Select(maker.Ident(typeNode.toName("this")), field.name);
+ JCExpression thisDotFieldClone = maker.Select(maker.Ident(typeNode.toName("this")), field.name);
+ if (fType instanceof JCPrimitiveTypeTree) {
+ switch (((JCPrimitiveTypeTree)fType).getPrimitiveTypeKind()) {
+ case BOOLEAN:
+ /* this.fieldName ? 1231 : 1237 */
+ intoResult = intoResult.append(maker.Conditional(thisDotField, maker.Literal(1231), maker.Literal(1237)));
+ break;
+ case LONG:
+ intoResult = intoResult.append(longToIntForHashCode(maker, thisDotField, thisDotFieldClone));
+ break;
+ case FLOAT:
+ /* Float.floatToIntBits(this.fieldName) */
+ intoResult = intoResult.append(maker.Apply(
+ List.<JCExpression>nil(),
+ chainDots(maker, typeNode, "java", "lang", "Float", "floatToIntBits"),
+ List.of(thisDotField)));
+ break;
+ case DOUBLE:
+ /* longToIntForHashCode(Double.doubleToLongBits(this.fieldName)) */
+ Name tempVar = typeNode.toName("temp" + (++tempCounter));
+ JCExpression init = maker.Apply(
+ List.<JCExpression>nil(),
+ chainDots(maker, typeNode, "java", "lang", "Double", "doubleToLongBits"),
+ List.of(thisDotField));
+ statements = statements.append(
+ maker.VarDef(maker.Modifiers(Flags.FINAL), tempVar, maker.TypeIdent(TypeTags.LONG), init));
+ intoResult = intoResult.append(longToIntForHashCode(maker, maker.Ident(tempVar), maker.Ident(tempVar)));
+ break;
+ default:
+ case BYTE:
+ case SHORT:
+ case INT:
+ case CHAR:
+ /* just the field */
+ intoResult = intoResult.append(thisDotField);
+ break;
+ }
+ } else if (fType instanceof JCArrayTypeTree) {
+ /* java.util.Arrays.deepHashCode(this.fieldName) //use just hashCode() for primitive arrays. */
+ boolean multiDim = ((JCArrayTypeTree)fType).elemtype instanceof JCArrayTypeTree;
+ boolean primitiveArray = ((JCArrayTypeTree)fType).elemtype instanceof JCPrimitiveTypeTree;
+ boolean useDeepHC = multiDim || !primitiveArray;
+
+ JCExpression hcMethod = chainDots(maker, typeNode, "java", "util", "Arrays", useDeepHC ? "deepHashCode" : "hashCode");
+ intoResult = intoResult.append(
+ maker.Apply(List.<JCExpression>nil(), hcMethod, List.of(thisDotField)));
+ } else /* objects */ {
+ /* this.fieldName == null ? 0 : this.fieldName.hashCode() */
+ JCExpression hcCall = maker.Apply(List.<JCExpression>nil(), maker.Select(thisDotField, typeNode.toName("hashCode")),
+ List.<JCExpression>nil());
+ JCExpression thisEqualsNull = maker.Binary(JCTree.EQ, thisDotField, maker.Literal(TypeTags.BOT, null));
+ intoResult = intoResult.append(
+ maker.Conditional(thisEqualsNull, maker.Literal(0), hcCall));
+ }
+ }
+
+ /* fold each intoResult entry into:
+ result = result * PRIME + (item); */
+ for (JCExpression expr : intoResult) {
+ JCExpression mult = maker.Binary(JCTree.MUL, maker.Ident(resultName), maker.Ident(primeName));
+ JCExpression add = maker.Binary(JCTree.PLUS, mult, expr);
+ statements = statements.append(maker.Exec(maker.Assign(maker.Ident(resultName), add)));
+ }
+
+ /* return result; */ {
+ statements = statements.append(maker.Return(maker.Ident(resultName)));
+ }
+
+ JCBlock body = maker.Block(0, statements);
+ return maker.MethodDef(mods, typeNode.toName("hashCode"), returnType,
+ List.<JCTypeParameter>nil(), List.<JCVariableDecl>nil(), List.<JCExpression>nil(), body, null);
+ }
+
+ /** The 2 references must be clones of each other. */
+ private JCExpression longToIntForHashCode(TreeMaker maker, JCExpression ref1, JCExpression ref2) {
+ /* (int)(ref >>> 32 ^ ref) */
+ JCExpression shift = maker.Binary(JCTree.USR, ref1, maker.Literal(32));
+ JCExpression xorBits = maker.Binary(JCTree.BITXOR, shift, ref2);
+ return maker.TypeCast(maker.TypeIdent(TypeTags.INT), xorBits);
+ }
+
+ private JCMethodDecl createEquals(JavacNode typeNode, List<JavacNode> fields, boolean callSuper) {
+ TreeMaker maker = typeNode.getTreeMaker();
+ JCClassDecl type = (JCClassDecl) typeNode.get();
+
+ Name oName = typeNode.toName("o");
+ Name otherName = typeNode.toName("other");
+ Name thisName = typeNode.toName("this");
+
+ JCAnnotation overrideAnnotation = maker.Annotation(chainDots(maker, typeNode, "java", "lang", "Override"), List.<JCExpression>nil());
+ JCModifiers mods = maker.Modifiers(Flags.PUBLIC, List.of(overrideAnnotation));
+ JCExpression objectType = maker.Type(typeNode.getSymbolTable().objectType);
+ JCExpression returnType = maker.TypeIdent(TypeTags.BOOLEAN);
+
+ List<JCStatement> statements = List.nil();
+ List<JCVariableDecl> params = List.of(maker.VarDef(maker.Modifiers(Flags.FINAL), oName, objectType, null));
+
+ /* if (o == this) return true; */ {
+ statements = statements.append(maker.If(maker.Binary(JCTree.EQ, maker.Ident(oName),
+ maker.Ident(thisName)), returnBool(maker, true), null));
+ }
+
+ /* if (o == null) return false; */ {
+ statements = statements.append(maker.If(maker.Binary(JCTree.EQ, maker.Ident(oName),
+ maker.Literal(TypeTags.BOT, null)), returnBool(maker, false), null));
+ }
+
+ /* if (o.getClass() != this.getClass()) return false; */ {
+ Name getClass = typeNode.toName("getClass");
+ List<JCExpression> exprNil = List.nil();
+ JCExpression oGetClass = maker.Apply(exprNil, maker.Select(maker.Ident(oName), getClass), exprNil);
+ JCExpression thisGetClass = maker.Apply(exprNil, maker.Select(maker.Ident(thisName), getClass), exprNil);
+ statements = statements.append(
+ maker.If(maker.Binary(JCTree.NE, oGetClass, thisGetClass), returnBool(maker, false), null));
+ }
+
+ /* if (!super.equals(o)) return false; */
+ if (callSuper) {
+ JCMethodInvocation callToSuper = maker.Apply(List.<JCExpression>nil(),
+ maker.Select(maker.Ident(typeNode.toName("super")), typeNode.toName("equals")),
+ List.<JCExpression>of(maker.Ident(oName)));
+ JCUnary superNotEqual = maker.Unary(JCTree.NOT, callToSuper);
+ statements = statements.append(maker.If(superNotEqual, returnBool(maker, false), null));
+ }
+
+ /* MyType<?> other = (MyType<?>) o; */ {
+ final JCExpression selfType1, selfType2;
+ List<JCExpression> wildcards1 = List.nil();
+ List<JCExpression> wildcards2 = List.nil();
+ for (int i = 0 ; i < type.typarams.length() ; i++) {
+ wildcards1 = wildcards1.append(maker.Wildcard(maker.TypeBoundKind(BoundKind.UNBOUND), null));
+ wildcards2 = wildcards2.append(maker.Wildcard(maker.TypeBoundKind(BoundKind.UNBOUND), null));
+ }
+
+ if (type.typarams.isEmpty()) {
+ selfType1 = maker.Ident(type.name);
+ selfType2 = maker.Ident(type.name);
+ } else {
+ selfType1 = maker.TypeApply(maker.Ident(type.name), wildcards1);
+ selfType2 = maker.TypeApply(maker.Ident(type.name), wildcards2);
+ }
+
+ statements = statements.append(
+ maker.VarDef(maker.Modifiers(Flags.FINAL), otherName, selfType1, maker.TypeCast(selfType2, maker.Ident(oName))));
+ }
+
+ for (JavacNode fieldNode : fields) {
+ JCVariableDecl field = (JCVariableDecl) fieldNode.get();
+ JCExpression fType = field.vartype;
+ JCExpression thisDotField = maker.Select(maker.Ident(thisName), field.name);
+ JCExpression otherDotField = maker.Select(maker.Ident(otherName), field.name);
+ if (fType instanceof JCPrimitiveTypeTree) {
+ switch (((JCPrimitiveTypeTree)fType).getPrimitiveTypeKind()) {
+ case FLOAT:
+ /* if (Float.compare(this.fieldName, other.fieldName) != 0) return false; */
+ statements = statements.append(generateCompareFloatOrDouble(thisDotField, otherDotField, maker, typeNode, false));
+ break;
+ case DOUBLE:
+ /* if (Double(this.fieldName, other.fieldName) != 0) return false; */
+ statements = statements.append(generateCompareFloatOrDouble(thisDotField, otherDotField, maker, typeNode, true));
+ break;
+ default:
+ /* if (this.fieldName != other.fieldName) return false; */
+ statements = statements.append(
+ maker.If(maker.Binary(JCTree.NE, thisDotField, otherDotField), returnBool(maker, false), null));
+ break;
+ }
+ } else if (fType instanceof JCArrayTypeTree) {
+ /* if (!java.util.Arrays.deepEquals(this.fieldName, other.fieldName)) return false; //use equals for primitive arrays. */
+ boolean multiDim = ((JCArrayTypeTree)fType).elemtype instanceof JCArrayTypeTree;
+ boolean primitiveArray = ((JCArrayTypeTree)fType).elemtype instanceof JCPrimitiveTypeTree;
+ boolean useDeepEquals = multiDim || !primitiveArray;
+
+ JCExpression eqMethod = chainDots(maker, typeNode, "java", "util", "Arrays", useDeepEquals ? "deepEquals" : "equals");
+ List<JCExpression> args = List.of(thisDotField, otherDotField);
+ statements = statements.append(maker.If(maker.Unary(JCTree.NOT,
+ maker.Apply(List.<JCExpression>nil(), eqMethod, args)), returnBool(maker, false), null));
+ } else /* objects */ {
+ /* if (this.fieldName == null ? other.fieldName != null : !this.fieldName.equals(other.fieldName)) return false; */
+ JCExpression thisEqualsNull = maker.Binary(JCTree.EQ, thisDotField, maker.Literal(TypeTags.BOT, null));
+ JCExpression otherNotEqualsNull = maker.Binary(JCTree.NE, otherDotField, maker.Literal(TypeTags.BOT, null));
+ JCExpression thisEqualsThat = maker.Apply(
+ List.<JCExpression>nil(), maker.Select(thisDotField, typeNode.toName("equals")), List.of(otherDotField));
+ JCExpression fieldsAreNotEqual = maker.Conditional(thisEqualsNull, otherNotEqualsNull, maker.Unary(JCTree.NOT, thisEqualsThat));
+ statements = statements.append(maker.If(fieldsAreNotEqual, returnBool(maker, false), null));
+ }
+ }
+
+ /* return true; */ {
+ statements = statements.append(returnBool(maker, true));
+ }
+
+ JCBlock body = maker.Block(0, statements);
+ return maker.MethodDef(mods, typeNode.toName("equals"), returnType, List.<JCTypeParameter>nil(