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A fast dependency injector for Android and Java.

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/*
 * Copyright (C) 2018 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 androidx.room.compiler.processing.XFiler;
import androidx.room.compiler.processing.XMessager;
import androidx.room.compiler.processing.XProcessingEnv;
import androidx.room.compiler.processing.compat.XConverters;
import com.google.googlejavaformat.java.filer.FormattingFiler;
import dagger.Binds;
import dagger.Module;
import dagger.Provides;
import dagger.Reusable;
import dagger.internal.codegen.compileroption.CompilerOptions;
import dagger.internal.codegen.compileroption.ProcessingEnvironmentCompilerOptions;
import dagger.internal.codegen.compileroption.ProcessingOptions;
import java.util.Map;

/** Bindings that depend on the {@link XProcessingEnv}. */
@Module
interface ProcessingEnvironmentModule {
  @Binds
  @Reusable // to avoid parsing options more than once
  CompilerOptions bindCompilerOptions(
      ProcessingEnvironmentCompilerOptions processingEnvironmentCompilerOptions);

  @Provides
  @ProcessingOptions
  static Map processingOptions(XProcessingEnv xProcessingEnv) {
    return xProcessingEnv.getOptions();
  }

  @Provides
  static XMessager messager(XProcessingEnv xProcessingEnv) {
    return xProcessingEnv.getMessager();
  }

  @Provides
  static XFiler filer(CompilerOptions compilerOptions, XProcessingEnv xProcessingEnv) {
    return compilerOptions.headerCompilation() || !compilerOptions.formatGeneratedSource()
        ? xProcessingEnv.getFiler()
        : XConverters.toXProcessing(
            new FormattingFiler(XConverters.toJavac(xProcessingEnv.getFiler())), xProcessingEnv);
  }
}