/*
* 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 static com.google.errorprone.refaster.Unifier.unifications;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableList;
import com.sun.source.tree.ForLoopTree;
import com.sun.source.tree.TreeVisitor;
import com.sun.tools.javac.tree.JCTree.JCExpressionStatement;
import com.sun.tools.javac.tree.JCTree.JCForLoop;
import com.sun.tools.javac.tree.JCTree.JCStatement;
import java.util.List;
import javax.annotation.Nullable;
/**
* {@link UTree} representation of a {@link ForLoopTree}.
*
* @author lowasser@google.com (Louis Wasserman)
*/
@AutoValue
abstract class UForLoop extends USimpleStatement implements ForLoopTree {
public static UForLoop create(
Iterable<? extends UStatement> initializer, @Nullable UExpression condition,
Iterable<? extends UExpressionStatement> update, UStatement statement) {
return new AutoValue_UForLoop(
ImmutableList.copyOf(initializer), condition, ImmutableList.copyOf(update),
(USimpleStatement) statement);
}
@Override
public abstract List<UStatement> getInitializer();
@Override
@Nullable
public abstract UExpression getCondition();
@Override
public abstract List<UExpressionStatement> getUpdate();
@Override
public abstract USimpleStatement getStatement();
@Override
@Nullable
public Choice<Unifier> visitForLoop(ForLoopTree loop, @Nullable Unifier unifier) {
return UBlock.unifyStatementList(getInitializer(), loop.getInitializer(), unifier)
.thenChoose(unifications(getCondition(), loop.getCondition()))
.thenChoose(unifications(getUpdate(), loop.getUpdate()))
.thenChoose(unifications(getStatement(), loop.getStatement()));
}
@Override
public <R, D> R accept(TreeVisitor<R, D> visitor, D data) {
return visitor.visitForLoop(this, data);
}
@Override
public Kind getKind() {
return Kind.FOR_LOOP;
}
@Override
public JCForLoop inline(Inliner inliner) throws CouldNotResolveImportException {
return inliner.maker().ForLoop(
UBlock.inlineStatementList(getInitializer(), inliner),
(getCondition() == null) ? null : getCondition().inline(inliner),
com.sun.tools.javac.util.List.convert(
JCExpressionStatement.class, inliner.<JCStatement>inlineList(getUpdate())),
getStatement().inline(inliner));
}
}