com.google.errorprone.refaster.ULocalVarIdent 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 com.google.auto.value.AutoValue;
import com.google.common.base.Optional;
import com.google.errorprone.util.ASTHelpers;
import com.sun.source.tree.IdentifierTree;
import com.sun.tools.javac.tree.JCTree.JCIdent;
import java.util.Objects;
/**
* Identifier corresponding to a template local variable.
*
* @author [email protected] (Louis Wasserman)
*/
@AutoValue
abstract class ULocalVarIdent extends UIdent {
/** A key in a {@code Bindings} associated with a local variable of the specified name. */
static final class Key extends Bindings.Key {
Key(CharSequence name) {
super(name.toString());
}
}
public static ULocalVarIdent create(CharSequence identifier) {
return new AutoValue_ULocalVarIdent(StringName.of(identifier));
}
@Override
public abstract StringName getName();
private Key key() {
return new Key(getName());
}
@Override
public Choice visitIdentifier(IdentifierTree ident, Unifier unifier) {
LocalVarBinding binding = unifier.getBinding(key());
return Choice.condition(
binding != null && Objects.equals(ASTHelpers.getSymbol(ident), binding.getSymbol()),
unifier);
}
@Override
public JCIdent inline(Inliner inliner) throws CouldNotResolveImportException {
Optional binding = inliner.getOptionalBinding(key());
return inliner
.maker()
.Ident(binding.isPresent() ? binding.get().getName() : getName().inline(inliner));
}
}