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/*
* 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
* 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.util.LinkedHashMap;
import java.util.Map;
import lombok.AccessLevel;
import lombok.Data;
import lombok.core.AST.Kind;
import lombok.core.AnnotationValues;
import lombok.core.handlers.TransformationsUtil;
import lombok.javac.JavacAnnotationHandler;
import lombok.javac.JavacNode;
import org.mangosdk.spi.ProviderFor;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.tree.JCTree.JCAnnotation;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
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) {
markAnnotationAsProcessed(annotationNode, Data.class);
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();
Map<JavacNode, Boolean> gettersAndSetters = new LinkedHashMap<JavacNode, Boolean>();
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);
gettersAndSetters.put(child, !isFinal);
}
String staticConstructorName = annotation.getInstance().staticConstructor();
new HandleConstructor().generateConstructor(AccessLevel.PUBLIC, typeNode, nodesForConstructor, staticConstructorName, true, false);
for (Map.Entry<JavacNode, Boolean> field : gettersAndSetters.entrySet()) {
new HandleGetter().generateGetterForField(field.getKey(), annotationNode.get(), AccessLevel.PUBLIC, true);
if (field.getValue()) new HandleSetter().generateSetterForField(field.getKey(), annotationNode.get(), AccessLevel.PUBLIC, true);
}
new HandleEqualsAndHashCode().generateEqualsAndHashCodeForType(typeNode, annotationNode);
new HandleToString().generateToStringForType(typeNode, annotationNode);
return true;
}
}
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