/*
* Copyright 2016 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.matchers;
import com.google.errorprone.VisitorState;
import com.google.errorprone.suppliers.Supplier;
import com.google.errorprone.util.ASTHelpers;
import com.sun.source.tree.Tree;
import com.sun.tools.javac.code.Type;
/**
* Matches an AST node if its erased type is the same as the given type, e.g. If the type of the AST
* node is {@code HashMap<K,V>} and the given type is {@code HashMap}, then their erased type is the
* same.
*
* @author yanx@google.com (Yan Xie)
*/
public class IsSameType<T extends Tree> extends AbstractTypeMatcher<T> {
public IsSameType(Supplier<Type> typeToCompareSupplier) {
super(typeToCompareSupplier);
}
public IsSameType(String typeString) {
super(typeString);
}
@Override
public boolean matches(T tree, VisitorState state) {
Type typeToCompare = typeToCompareSupplier.get(state);
return ASTHelpers.isSameType(ASTHelpers.getType(tree), typeToCompare, state);
}
}