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lombok-pg is a collection of extensions to Project Lombok
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/*
* Copyright © 2010-2012 Philipp Eichhorn
*
* 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.core.util.ErrorMessages.*;
import static lombok.core.util.Names.*;
import static lombok.javac.handlers.JavacHandlerUtil.*;
import lombok.*;
import lombok.core.AnnotationValues;
import lombok.core.handlers.BuilderAndExtensionHandler;
import lombok.javac.JavacAnnotationHandler;
import lombok.javac.JavacNode;
import lombok.javac.handlers.ast.JavacField;
import lombok.javac.handlers.ast.JavacMethod;
import lombok.javac.handlers.ast.JavacType;
import com.sun.tools.javac.tree.JCTree.JCAnnotation;
import org.mangosdk.spi.ProviderFor;
public class HandleBuilderAndExtension {
/**
* Handles the {@code lombok.Builder} annotation for javac.
*/
@ProviderFor(JavacAnnotationHandler.class)
public static class HandleBuilder extends JavacAnnotationHandler {
@Override
public void handle(final AnnotationValues annotation, final JCAnnotation source, final JavacNode annotationNode) {
deleteAnnotationIfNeccessary(annotationNode, Builder.class);
final JavacType type = JavacType.typeOf(annotationNode, source);
if (type.isInterface() || type.isEnum() || type.isAnnotation()) {
annotationNode.addError(canBeUsedOnClassOnly(Builder.class));
return;
}
switch (methodExists(decapitalize(type.name()), type.node(), false, 0)) {
case EXISTS_BY_LOMBOK:
return;
case EXISTS_BY_USER:
final String message = "Not generating 'public static %s %s()' A method with that name already exists";
annotationNode.addWarning(String.format(message, BuilderAndExtensionHandler.BUILDER, decapitalize(type.name())));
return;
default:
case NOT_EXISTS:
// continue with creating the builder
}
new BuilderAndExtensionHandler().handleBuilder(type, annotation.getInstance());
}
}
/**
* Handles the {@code lombok.Builder.Extension} annotation for javac.
*/
@ProviderFor(JavacAnnotationHandler.class)
public static class HandleBuilderExtension extends JavacAnnotationHandler {
@Override
public void handle(final AnnotationValues annotation, final JCAnnotation source, final JavacNode annotationNode) {
if (inNetbeansEditor(annotationNode)) return;
deleteAnnotationIfNeccessary(annotationNode, Builder.Extension.class);
final JavacMethod method = JavacMethod.methodOf(annotationNode, source);
if (method == null) {
annotationNode.addError(canBeUsedOnMethodOnly(Builder.Extension.class));
return;
}
if (method.isAbstract() || method.isEmpty()) {
annotationNode.addError(canBeUsedOnConcreteMethodOnly(Builder.Extension.class));
return;
}
JavacType type = JavacType.typeOf(annotationNode, source);
JavacNode builderNode = type.getAnnotation(Builder.class);
if (builderNode == null) {
annotationNode.addError("@Builder.Extension is only allowed in types annotated with @Builder");
return;
}
AnnotationValues builderAnnotation = createAnnotation(Builder.class, builderNode);
if (!type.hasMethod(decapitalize(type.name()))) {
new HandleBuilder().handle(builderAnnotation, (JCAnnotation) builderNode.get(), builderNode);
}
new BuilderAndExtensionHandler().handleExtension(type, method, new JavacParameterValidator(), new JavacParameterSanitizer(), builderAnnotation.getInstance(), annotation.getInstance());
}
}
}
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