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/*
* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
* Copyright (C) 2011, 2013-2016 The JavaParser Team.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
package com.github.javaparser.ast.type;
import com.github.javaparser.Range;
import com.github.javaparser.ast.AllFieldsConstructor;
import com.github.javaparser.ast.NodeList;
import com.github.javaparser.ast.expr.AnnotationExpr;
import com.github.javaparser.ast.nodeTypes.NodeWithAnnotations;
import com.github.javaparser.ast.observer.ObservableProperty;
import com.github.javaparser.ast.visitor.GenericVisitor;
import com.github.javaparser.ast.visitor.VoidVisitor;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.visitor.CloneVisitor;
import com.github.javaparser.metamodel.WildcardTypeMetaModel;
import com.github.javaparser.metamodel.JavaParserMetaModel;
/**
* A wildcard type argument.
* <br/><code>void printCollection(Collection<<b>?</b>> c) { ... }</code>
* <br/><code>boolean addAll(Collection<<b>? extends E</b>> c)</code>
* <br/><code>Reference(T referent, ReferenceQueue<<b>? super T</b>> queue)</code>
*
* @author Julio Vilmar Gesser
*/
public final class WildcardType extends Type implements NodeWithAnnotations<WildcardType> {
private ReferenceType extendedTypes;
private ReferenceType superTypes;
public WildcardType() {
this(null, null, null);
}
public WildcardType(final ReferenceType extendedTypes) {
this(null, extendedTypes, null);
}
@AllFieldsConstructor
public WildcardType(final ReferenceType extendedTypes, final ReferenceType superTypes) {
this(null, extendedTypes, superTypes);
}
public WildcardType(final Range range, final ReferenceType extendedTypes, final ReferenceType superTypes) {
super(range, new NodeList<>());
setExtendedTypes(extendedTypes);
setSuperTypes(superTypes);
}
@Override
public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {
return v.visit(this, arg);
}
@Override
public <A> void accept(final VoidVisitor<A> v, final A arg) {
v.visit(this, arg);
}
public Optional<ReferenceType> getExtendedTypes() {
return Optional.ofNullable(extendedTypes);
}
public Optional<ReferenceType> getSuperTypes() {
return Optional.ofNullable(superTypes);
}
/**
* Sets the extends
*
* @param ext the extends, can be null
* @return this, the WildcardType
*/
public WildcardType setExtendedTypes(final ReferenceType extendedTypes) {
notifyPropertyChange(ObservableProperty.EXTENDED_TYPES, this.extendedTypes, extendedTypes);
if (this.extendedTypes != null)
this.extendedTypes.setParentNode(null);
this.extendedTypes = extendedTypes;
setAsParentNodeOf(extendedTypes);
return this;
}
/**
* Sets the super
*
* @param sup the super, can be null
* @return this, the WildcardType
*/
public WildcardType setSuperTypes(final ReferenceType superTypes) {
notifyPropertyChange(ObservableProperty.SUPER_TYPES, this.superTypes, superTypes);
if (this.superTypes != null)
this.superTypes.setParentNode(null);
this.superTypes = superTypes;
setAsParentNodeOf(superTypes);
return this;
}
@Override
public WildcardType setAnnotations(NodeList<AnnotationExpr> annotations) {
return (WildcardType) super.setAnnotations(annotations);
}
@Override
public List<NodeList<?>> getNodeLists() {
return Arrays.asList(getAnnotations());
}
@Override
public boolean remove(Node node) {
if (node == null)
return false;
if (extendedTypes != null) {
if (node == extendedTypes) {
removeExtendedTypes();
return true;
}
}
if (superTypes != null) {
if (node == superTypes) {
removeSuperTypes();
return true;
}
}
return super.remove(node);
}
public WildcardType removeExtendedTypes() {
return setExtendedTypes((ReferenceType) null);
}
public WildcardType removeSuperTypes() {
return setSuperTypes((ReferenceType) null);
}
@Override
public WildcardType clone() {
return (WildcardType) accept(new CloneVisitor(), null);
}
public WildcardTypeMetaModel getMetaModel() {
return JavaParserMetaModel.wildcardTypeMetaModel;
}
}
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