/*
* Copyright 2013 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 com.google.auto.value.AutoValue;
import com.sun.source.tree.IfTree;
import com.sun.source.tree.TreeVisitor;
import com.sun.tools.javac.tree.JCTree.JCIf;
import javax.annotation.Nullable;
/**
* {@link UTree} representation of an {@link IfTree}.
*
* @author lowasser@google.com (Louis Wasserman)
*/
@AutoValue
abstract class UIf extends UStatement implements IfTree {
public static UIf create(
UExpression condition, UStatement thenStatement, UStatement elseStatement) {
return new AutoValue_UIf(condition, thenStatement, elseStatement);
}
@Override
public abstract UExpression getCondition();
@Override
public abstract UStatement getThenStatement();
@Override
@Nullable
public abstract UStatement getElseStatement();
@Override
public <R, D> R accept(TreeVisitor<R, D> visitor, D data) {
return visitor.visitIf(this, data);
}
@Override
public Kind getKind() {
return Kind.IF;
}
@Override
@Nullable
public Unifier visitIf(IfTree ifTree, @Nullable Unifier unifier) {
unifier = getCondition().unify(ifTree.getCondition(), unifier);
unifier = getThenStatement().unify(ifTree.getThenStatement(), unifier);
return Unifier.unifyNullable(unifier, getElseStatement(), ifTree.getElseStatement());
}
@Override
public JCIf inline(Inliner inliner) throws CouldNotResolveImportException {
return inliner.maker().If(
getCondition().inline(inliner),
getThenStatement().inline(inliner),
(getElseStatement() == null) ? null : getElseStatement().inline(inliner));
}
}