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/*
* Copyright (C) 2012-2014 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.handlers;
import static lombok.core.handlers.HandlerUtil.*;
import static lombok.javac.handlers.JavacHandlerUtil.*;
import java.lang.annotation.Annotation;
import lombok.AccessLevel;
import lombok.ConfigurationKeys;
import lombok.core.AnnotationValues;
import lombok.core.HandlerPriority;
import lombok.experimental.NonFinal;
import lombok.Value;
import lombok.javac.JavacAnnotationHandler;
import lombok.javac.JavacNode;
import lombok.javac.handlers.HandleConstructor.SkipIfConstructorExists;
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.JCModifiers;
/**
* Handles the {@code lombok.Value} annotation for javac.
*/
@ProviderFor(JavacAnnotationHandler.class)
@HandlerPriority(-512) //-2^9; to ensure @EqualsAndHashCode and such pick up on this handler making the class final and messing with the fields' access levels, run earlier.
public class HandleValue extends JavacAnnotationHandler<Value> {
@Override public void handle(AnnotationValues<Value> annotation, JCAnnotation ast, JavacNode annotationNode) {
@SuppressWarnings("deprecation")
Class<? extends Annotation> oldExperimentalValue = lombok.experimental.Value.class;
handleFlagUsage(annotationNode, ConfigurationKeys.VALUE_FLAG_USAGE, "@Value");
deleteAnnotationIfNeccessary(annotationNode, Value.class, oldExperimentalValue);
JavacNode typeNode = annotationNode.up();
boolean notAClass = !isClass(typeNode);
if (notAClass) {
annotationNode.addError("@Value is only supported on a class.");
return;
}
String staticConstructorName = annotation.getInstance().staticConstructor();
if (!hasAnnotationAndDeleteIfNeccessary(NonFinal.class, typeNode)) {
JCModifiers jcm = ((JCClassDecl) typeNode.get()).mods;
if ((jcm.flags & Flags.FINAL) == 0) {
jcm.flags |= Flags.FINAL;
typeNode.rebuild();
}
}
new HandleFieldDefaults().generateFieldDefaultsForType(typeNode, annotationNode, AccessLevel.PRIVATE, true, true);
// TODO move this to the end OR move it to the top in eclipse.
new HandleConstructor().generateAllArgsConstructor(typeNode, AccessLevel.PUBLIC, staticConstructorName, SkipIfConstructorExists.YES, annotationNode);
new HandleGetter().generateGetterForType(typeNode, annotationNode, AccessLevel.PUBLIC, true);
new HandleEqualsAndHashCode().generateEqualsAndHashCodeForType(typeNode, annotationNode);
new HandleToString().generateToStringForType(typeNode, annotationNode);
}
}
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