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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.eclipse.handlers;
import static lombok.eclipse.handlers.EclipseHandlerUtil.findAnnotations;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
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.eclipse.EclipseAnnotationHandler;
import lombok.eclipse.EclipseNode;
import org.eclipse.jdt.internal.compiler.ast.Annotation;
import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.mangosdk.spi.ProviderFor;
/**
* Handles the {@code lombok.Data} annotation for eclipse.
*/
@ProviderFor(EclipseAnnotationHandler.class)
public class HandleData implements EclipseAnnotationHandler<Data> {
public boolean handle(AnnotationValues<Data> annotation, Annotation ast, EclipseNode annotationNode) {
Data ann = annotation.getInstance();
EclipseNode typeNode = annotationNode.up();
TypeDeclaration typeDecl = null;
if (typeNode.get() instanceof TypeDeclaration) typeDecl = (TypeDeclaration) typeNode.get();
int modifiers = typeDecl == null ? 0 : typeDecl.modifiers;
boolean notAClass = (modifiers &
(ClassFileConstants.AccInterface | ClassFileConstants.AccAnnotation | ClassFileConstants.AccEnum)) != 0;
if (typeDecl == null || notAClass) {
annotationNode.addError("@Data is only supported on a class.");
return false;
}
List<EclipseNode> nodesForConstructor = new ArrayList<EclipseNode>();
Map<EclipseNode, Boolean> gettersAndSetters = new LinkedHashMap<EclipseNode, Boolean>();
for (EclipseNode child : typeNode.down()) {
if (child.getKind() != Kind.FIELD) continue;
FieldDeclaration fieldDecl = (FieldDeclaration) child.get();
//Skip fields that start with $
if (fieldDecl.name.length > 0 && fieldDecl.name[0] == '$') continue;
//Skip static fields.
if ((fieldDecl.modifiers & ClassFileConstants.AccStatic) != 0) continue;
boolean isFinal = (fieldDecl.modifiers & ClassFileConstants.AccFinal) != 0;
boolean isNonNull = findAnnotations(fieldDecl, TransformationsUtil.NON_NULL_PATTERN).length != 0;
if ((isFinal || isNonNull) && fieldDecl.initialization == null) nodesForConstructor.add(child);
gettersAndSetters.put(child, !isFinal);
}
//Careful: Generate the public static constructor (if there is one) LAST, so that any attempt to
//'find callers' on the annotation node will find callers of the constructor, which is by far the
//most useful of the many methods built by @Data. This trick won't work for the non-static constructor,
//for whatever reason, though you can find callers of that one by focusing on the class name itself
//and hitting 'find callers'.
new HandleConstructor().generateConstructor(AccessLevel.PUBLIC, typeNode, nodesForConstructor, ann.staticConstructor(), true, false, ast);
for (Map.Entry<EclipseNode, 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 false;
}
}
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