net.sourceforge.pmd.lang.java.ast.ASTClassDeclaration Maven / Gradle / Ivy
/**
* BSD-style license; for more info see http://pmd.sourceforge.net/license.html
*/
package net.sourceforge.pmd.lang.java.ast;
import java.util.List;
import net.sourceforge.pmd.lang.ast.Node;
/**
* Represents class and interface declarations.
* This is a {@linkplain Node#isFindBoundary() find boundary} for tree traversal methods.
*
*
*
* ClassDeclaration ::= {@link ASTModifierList ModifierList}
* ( "class" | "interface" )
* <IDENTIFIER>
* {@link ASTTypeParameters TypeParameters}?
* {@link ASTExtendsList ExtendsList}?
* {@link ASTImplementsList ImplementsList}?
* {@link ASTClassBody ClassBody}
*
*
*/
public final class ASTClassDeclaration extends AbstractTypeDeclaration {
private boolean isInterface;
ASTClassDeclaration(int id) {
super(id);
}
@Override
protected R acceptVisitor(JavaVisitor visitor, P data) {
return visitor.visit(this, data);
}
@Override
public boolean isInterface() {
return this.isInterface;
}
@Override
public boolean isRegularClass() {
return !isInterface;
}
@Override
public boolean isRegularInterface() {
return isInterface;
}
void setInterface() {
this.isInterface = true;
}
/**
* Returns the superclass type node if this node is a class
* declaration and explicitly declares an {@code extends}
* clause. Superinterfaces of an interface are not considered.
*
* Returns {@code null} otherwise.
*/
public ASTClassType getSuperClassTypeNode() {
if (isInterface()) {
return null;
}
ASTExtendsList extendsList = firstChild(ASTExtendsList.class);
return extendsList == null ? null : extendsList.iterator().next();
}
public List getPermittedSubclasses() {
return ASTList.orEmpty(children(ASTPermitsList.class).first());
}
}