com.google.errorprone.refaster.UIntersectionClassType Maven / Gradle / Ivy
/*
* Copyright 2014 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.unifyList;
import static com.sun.tools.javac.code.Flags.COMPOUND;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableList;
import com.sun.tools.javac.code.Symbol.ClassSymbol;
import com.sun.tools.javac.code.Type.ClassType;
import com.sun.tools.javac.code.Type.IntersectionClassType;
/**
* {@code UType} representation of an {@code IntersectionClassType}.
*
* @author [email protected] (Louis Wasserman)
*/
@AutoValue
public abstract class UIntersectionClassType extends UType {
static UIntersectionClassType create(Iterable bounds) {
return new AutoValue_UIntersectionClassType(ImmutableList.copyOf(bounds));
}
abstract ImmutableList bounds();
@Override
public IntersectionClassType inline(Inliner inliner) throws CouldNotResolveImportException {
return new IntersectionClassType(
inliner.inlineList(bounds()),
new ClassSymbol(COMPOUND, inliner.asName("intersection"), inliner.symtab().noSymbol),
false);
}
@Override
public Choice visitClassType(ClassType t, Unifier unifier) {
if (t instanceof IntersectionClassType) {
IntersectionClassType intersection = (IntersectionClassType) t;
return unifyList(unifier, bounds(), intersection.getComponents());
}
return Choice.none();
}
}