/*
* 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.google.common.annotations.VisibleForTesting;
import com.google.common.base.Joiner;
import com.google.common.base.Splitter;
import com.google.errorprone.util.ASTHelpers;
import com.sun.source.tree.Tree;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.code.Symbol.ClassSymbol;
import com.sun.tools.javac.tree.JCTree.JCExpression;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Nullable;
/**
* Identifier for a class type.
*
* @author lowasser@google.com (Louis Wasserman)
*/
@AutoValue
abstract class UClassIdent extends UIdent {
@VisibleForTesting
public static UClassIdent create(String qualifiedName) {
List<String> topLevelPath = new ArrayList<>();
for (String component : Splitter.on('.').split(qualifiedName)) {
topLevelPath.add(component);
if (Character.isUpperCase(component.charAt(0))) {
break;
}
}
return create(Joiner.on('.').join(topLevelPath), qualifiedName);
}
public static UClassIdent create(ClassSymbol sym) {
return create(sym.outermostClass().getQualifiedName(), sym.getQualifiedName());
}
private static UClassIdent create(CharSequence topLevelClass, CharSequence name) {
return new AutoValue_UClassIdent(topLevelClass.toString(), StringName.of(name));
}
public abstract String getTopLevelClass();
@Override
public abstract StringName getName();
public ClassSymbol resolve(Inliner inliner) throws CouldNotResolveImportException {
return inliner.resolveClass(getName());
}
@Override
public JCExpression inline(Inliner inliner) throws CouldNotResolveImportException {
return inliner.importPolicy().classReference(inliner, getTopLevelClass(), getName());
}
@Override
@Nullable
protected Choice<Unifier> defaultAction(Tree tree, @Nullable Unifier unifier) {
return unify(ASTHelpers.getSymbol(tree), unifier);
}
@Nullable
public Choice<Unifier> unify(@Nullable Symbol symbol, Unifier unifier) {
return symbol != null
? getName().unify(symbol.getQualifiedName(), unifier)
: Choice.<Unifier>none();
}
}