dagger.internal.codegen.MethodSignature.java Source code

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Here is the source code for dagger.internal.codegen.MethodSignature.java

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/*
 * Copyright (C) 2014 The Dagger 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 dagger.internal.codegen;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.auto.common.MoreTypes;
import com.google.auto.value.AutoValue;
import com.google.common.base.Equivalence;
import com.google.common.collect.ImmutableList;
import javax.lang.model.type.ExecutableType;
import javax.lang.model.type.TypeMirror;

@AutoValue
abstract class MethodSignature {
    abstract String name();

    abstract ImmutableList<Equivalence.Wrapper<TypeMirror>> parameterTypes();

    abstract ImmutableList<Equivalence.Wrapper<TypeMirror>> thrownTypes();

    static MethodSignature fromExecutableType(String methodName, ExecutableType methodType) {
        checkNotNull(methodType);
        ImmutableList.Builder<Equivalence.Wrapper<TypeMirror>> parameters = ImmutableList.builder();
        ImmutableList.Builder<Equivalence.Wrapper<TypeMirror>> thrownTypes = ImmutableList.builder();
        for (TypeMirror parameter : methodType.getParameterTypes()) {
            parameters.add(MoreTypes.equivalence().wrap(parameter));
        }
        for (TypeMirror thrownType : methodType.getThrownTypes()) {
            thrownTypes.add(MoreTypes.equivalence().wrap(thrownType));
        }
        return new AutoValue_MethodSignature(methodName, parameters.build(), thrownTypes.build());
    }
}