com.google.errorprone.matchers.method.ConstructorClassMatcherImpl.java Source code

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Here is the source code for com.google.errorprone.matchers.method.ConstructorClassMatcherImpl.java

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/*
 * Copyright 2015 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.method;

import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.errorprone.VisitorState;
import com.google.errorprone.matchers.method.MethodMatchers.ConstructorClassMatcher;
import com.google.errorprone.matchers.method.MethodMatchers.ParameterMatcher;
import com.google.errorprone.predicates.TypePredicate;
import com.google.errorprone.suppliers.Supplier;
import com.google.errorprone.suppliers.Suppliers;
import com.sun.source.tree.ExpressionTree;
import com.sun.tools.javac.code.Type;
import java.util.Arrays;

/** Matches on class type, allows refinement on parameters. */
class ConstructorClassMatcherImpl extends AbstractChainedMatcher<MatchState, MatchState>
        implements ConstructorClassMatcher {

    private final TypePredicate predicate;

    @Override
    protected Optional<MatchState> matchResult(ExpressionTree item, MatchState baseResult, VisitorState state) {
        if (predicate.apply(baseResult.ownerType(), state)) {
            return Optional.of(baseResult);
        }
        return Optional.absent();
    }

    public ConstructorClassMatcherImpl(ConstructorMatcherImpl baseMatcher, TypePredicate predicate) {
        super(baseMatcher);
        this.predicate = predicate;
    }

    @Override
    public ParameterMatcher withParameters(String... parameters) {
        return withParameters(Suppliers.fromStrings(Arrays.asList(parameters)));
    }

    @Override
    public ParameterMatcher withParameters(Iterable<Supplier<Type>> parameters) {
        return new ParameterMatcherImpl(this, ImmutableList.copyOf(parameters));
    }
}