/*
* Copyright 2014 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.errorprone.refaster;
import static com.google.errorprone.refaster.Unifier.unifications;
import com.google.auto.value.AutoValue;
import com.sun.source.tree.CatchTree;
import com.sun.source.tree.TreeVisitor;
import com.sun.tools.javac.tree.JCTree.JCCatch;
import javax.annotation.Nullable;
/**
* {@code UTree} representation of a {@code CatchTree}.
*
* @author lowasser@google.com (Louis Wasserman)
*/
@AutoValue
abstract class UCatch extends UTree<JCCatch> implements CatchTree {
static UCatch create(UVariableDecl parameter, UBlock block) {
return new AutoValue_UCatch(parameter, block);
}
@Override
public abstract UVariableDecl getParameter();
@Override
public abstract UBlock getBlock();
@Override
public Kind getKind() {
return Kind.CATCH;
}
@Override
public <R, D> R accept(TreeVisitor<R, D> visitor, D data) {
return visitor.visitCatch(this, data);
}
@Override
public JCCatch inline(Inliner inliner) throws CouldNotResolveImportException {
return inliner.maker().Catch(getParameter().inline(inliner), getBlock().inline(inliner));
}
@Override
@Nullable
public Choice<Unifier> visitCatch(CatchTree node, @Nullable Unifier unifier) {
return getParameter().unify(node.getParameter(), unifier)
.thenChoose(unifications(getBlock(), node.getBlock()));
}
}