/*
* 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 static com.google.errorprone.refaster.Unifier.unifyNullable;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableList;
import com.sun.source.tree.NewClassTree;
import com.sun.source.tree.TreeVisitor;
import com.sun.tools.javac.tree.JCTree.JCExpression;
import com.sun.tools.javac.tree.JCTree.JCNewClass;
import java.util.List;
import javax.annotation.Nullable;
/**
* {@link UTree} version of {@link NewClassTree}, which represents a constructor invocation.
*
* @author lowasser@google.com (Louis Wasserman)
*/
@AutoValue
abstract class UNewClass extends UExpression implements NewClassTree {
public static UNewClass create(UExpression enclosingExpression,
List<? extends UExpression> typeArguments, UExpression identifier,
List<UExpression> arguments, @Nullable UClassDecl classBody) {
return new AutoValue_UNewClass(
enclosingExpression, ImmutableList.copyOf(typeArguments), identifier,
ImmutableList.copyOf(arguments), classBody);
}
public static UNewClass create(
List<? extends UExpression> typeArguments, UExpression identifier,
UExpression... arguments) {
return create(null, typeArguments, identifier, ImmutableList.copyOf(arguments), null);
}
public static UNewClass create(UExpression identifier, UExpression... arguments) {
return create(ImmutableList.<UExpression>of(), identifier, arguments);
}
@Override
@Nullable
public abstract UExpression getEnclosingExpression();
/**
* Note: these are not the type arguments to the class, but to the constructor, for
* those extremely rare constructors that look like e.g. {@code <E> Foo(E e)}, where
* the type parameter is for the constructor alone and not the class.
*/
@Override
public abstract List<UExpression> getTypeArguments();
@Override
public abstract UExpression getIdentifier();
@Override
public abstract List<UExpression> getArguments();
@Override
@Nullable
public abstract UClassDecl getClassBody();
@Override
@Nullable
public Choice<Unifier> visitNewClass(NewClassTree newClass, @Nullable Unifier unifier) {
return unifyNullable(unifier, getEnclosingExpression(), newClass.getEnclosingExpression())
.thenChoose(unifications(getTypeArguments(), newClass.getTypeArguments()))
.thenChoose(unifications(getIdentifier(), newClass.getIdentifier()))
.thenChoose(unifications(getClassBody(), newClass.getClassBody()))
.thenChoose(unifications(getArguments(), newClass.getArguments()));
}
@Override
public Kind getKind() {
return Kind.NEW_CLASS;
}
@Override
public <R, D> R accept(TreeVisitor<R, D> visitor, D data) {
return visitor.visitNewClass(this, data);
}
@Override
public JCNewClass inline(Inliner inliner) throws CouldNotResolveImportException {
return inliner.maker().NewClass(
(getEnclosingExpression() == null) ? null : getEnclosingExpression().inline(inliner),
inliner.<JCExpression>inlineList(getTypeArguments()),
getIdentifier().inline(inliner),
inliner.<JCExpression>inlineList(getArguments()),
(getClassBody() == null) ? null : getClassBody().inline(inliner));
}
}