com.google.errorprone.refaster.UAssign Maven / Gradle / Ivy
/*
* Copyright 2013 The Error Prone Authors.
*
* 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.AssignmentTree;
import com.sun.source.tree.TreeVisitor;
import com.sun.tools.javac.tree.JCTree.JCAssign;
/**
* {@link UTree} representation of a {@link AssignmentTree}.
*
* @author [email protected] (Louis Wasserman)
*/
@AutoValue
abstract class UAssign extends UExpression implements AssignmentTree {
public static UAssign create(UExpression variable, UExpression expression) {
return new AutoValue_UAssign(variable, expression);
}
@Override
public abstract UExpression getVariable();
@Override
public abstract UExpression getExpression();
@Override
public JCAssign inline(Inliner inliner) throws CouldNotResolveImportException {
return inliner.maker().Assign(getVariable().inline(inliner), getExpression().inline(inliner));
}
@Override
public R accept(TreeVisitor visitor, D data) {
return visitor.visitAssignment(this, data);
}
@Override
public Kind getKind() {
return Kind.ASSIGNMENT;
}
@Override
public Choice visitAssignment(AssignmentTree assign, Unifier unifier) {
return getVariable()
.unify(assign.getVariable(), unifier)
.thenChoose(unifications(getExpression(), assign.getExpression()));
}
}