/*
* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.oracle.truffle.dsl.processor.java.model;
import java.util.List;
import javax.lang.model.element.Element;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.PackageElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.TypeParameterElement;
import javax.lang.model.element.VariableElement;
import javax.lang.model.util.ElementScanner7;
public abstract class CodeElementScanner<R, P> extends ElementScanner7<R, P> {
@Override
public final R visitExecutable(ExecutableElement e, P p) {
if (!(e instanceof CodeExecutableElement)) {
throw new ClassCastException(e.toString());
}
return visitExecutable(cast(e, CodeExecutableElement.class), p);
}
public R visitExecutable(CodeExecutableElement e, P p) {
R ret = super.visitExecutable(e, p);
if (e.getBodyTree() != null) {
visitTree(e.getBodyTree(), p, e);
}
return ret;
}
@Override
public R visitVariable(VariableElement e, P p) {
if (e instanceof CodeVariableElement) {
CodeTree init = ((CodeVariableElement) e).getInit();
if (init != null) {
visitTree(init, p, e);
}
}
return super.visitVariable(e, p);
}
@Override
public R visitPackage(PackageElement e, P p) {
return super.visitPackage(e, p);
}
@Override
public final R visitType(TypeElement e, P p) {
return visitType(cast(e, CodeTypeElement.class), p);
}
public R visitType(CodeTypeElement e, P p) {
return super.visitType(e, p);
}
@Override
public R visitTypeParameter(TypeParameterElement e, P p) {
return super.visitTypeParameter(e, p);
}
private static <E> E cast(Element element, Class<E> clazz) {
return clazz.cast(element);
}
public void visitTree(CodeTree e, P p, Element parent) {
List<CodeTree> elements = e.getEnclosedElements();
if (elements != null) {
for (CodeTree tree : e.getEnclosedElements()) {
visitTree(tree, p, parent);
}
}
}
@SuppressWarnings("unused")
public void visitImport(CodeImport e, P p) {
}
}