92 lines
2.8 KiB
Java
92 lines
2.8 KiB
Java
/*
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* Copyright (C) 2015 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dagger.producers.monitoring;
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import static com.google.common.base.Preconditions.checkNotNull;
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import dagger.producers.Produces;
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import java.util.Objects;
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import org.checkerframework.checker.nullness.compatqual.NullableDecl;
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/** A token that represents an individual {@linkplain Produces producer method}. */
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public final class ProducerToken {
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@NullableDecl private final Class<?> classToken;
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@NullableDecl private final String methodName;
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private ProducerToken(@NullableDecl Class<?> classToken, @NullableDecl String methodName) {
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this.classToken = classToken;
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this.methodName = methodName;
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}
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/**
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* Creates a token for a class token that represents the generated factory for a producer method.
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*
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* <p><b>Do not use this!</b> This is intended to be called by generated code only, and its
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* signature may change at any time.
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*/
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public static ProducerToken create(Class<?> classToken) {
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return new ProducerToken(checkNotNull(classToken), null);
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}
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/**
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* Creates a token for a producer method.
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*
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* <p><b>Do not use this!</b> This is intended to be called by generated code only, and its
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* signature may change at any time.
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*/
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public static ProducerToken create(String methodName) {
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return new ProducerToken(null, checkNotNull(methodName));
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}
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/** Two tokens are equal if they represent the same method. */
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@Override
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public boolean equals(Object o) {
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if (o == this) {
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return true;
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} else if (o instanceof ProducerToken) {
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ProducerToken that = (ProducerToken) o;
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return Objects.equals(this.classToken, that.classToken)
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&& Objects.equals(this.methodName, that.methodName);
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} else {
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return false;
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}
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}
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/** Returns an appropriate hash code to match {@link #equals(Object)}. */
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@Override
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public int hashCode() {
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int h = 1;
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h *= 1000003;
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h ^= Objects.hashCode(this.classToken);
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h *= 1000003;
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h ^= Objects.hashCode(this.methodName);
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return h;
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}
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/** Returns a representation of the method. */
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@Override
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public String toString() {
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if (methodName != null) {
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return methodName;
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} else if (classToken != null) {
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return classToken.getCanonicalName();
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} else {
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throw new IllegalStateException();
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}
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}
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}
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