/*
* 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.sun.source.tree.EnhancedForLoopTree;
import com.sun.source.tree.TreeVisitor;
import com.sun.tools.javac.tree.JCTree.JCEnhancedForLoop;
/**
* A {@link UTree} representation of a {@link EnhancedForLoopTree}.
*
* @author lowasser@google.com (Louis Wasserman)
*/
@AutoValue
abstract class UEnhancedForLoop extends USimpleStatement implements EnhancedForLoopTree {
public static UEnhancedForLoop create(
UVariableDecl variable, UExpression elements, UStatement statement) {
return new AutoValue_UEnhancedForLoop(variable, elements, (USimpleStatement) statement);
}
@Override
public abstract UVariableDecl getVariable();
@Override
public abstract UExpression getExpression();
@Override
public abstract USimpleStatement getStatement();
@Override
public <R, D> R accept(TreeVisitor<R, D> visitor, D data) {
return visitor.visitEnhancedForLoop(this, data);
}
@Override
public Kind getKind() {
return Kind.ENHANCED_FOR_LOOP;
}
@Override
public JCEnhancedForLoop inline(Inliner inliner) throws CouldNotResolveImportException {
return inliner.maker().ForeachLoop(
getVariable().inline(inliner),
getExpression().inline(inliner),
getStatement().inline(inliner));
}
@Override
public Choice<Unifier> visitEnhancedForLoop(EnhancedForLoopTree loop, Unifier unifier) {
return getVariable().unify(loop.getVariable(), unifier)
.thenChoose(unifications(getExpression(), loop.getExpression()))
.thenChoose(unifications(getStatement(), loop.getStatement()));
}
}