content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.itsaky.androidide.javac.services;
  
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Queue;
  import java.util.function.Consumer;
  import openjdk.tools.javac.comp.AttrContext;
  import openjdk.tools.javac.comp.Env;
  import openjdk.tools.javac.main.JavaCompiler;
  import openjdk.tools.javac.tree.JCTree;
  import openjdk.tools.javac.util.Context;
  import openjdk.tools.javac.util.List;
  import openjdk.tools.javac.util.Pair;
  
  /**
   * @author lahvac
   */
  public class NBJavaCompiler extends JavaCompiler {
  
    private final CancelService cancelService;
    private Consumer<Env<AttrContext>> desugarCallback;
    private boolean desugaring;
  
    public static void preRegister(Context context) {
      context.put(compilerKey, (Context.Factory<JavaCompiler>) NBJavaCompiler::new);
    }
  
    public NBJavaCompiler(Context context) {
      super(context);
      cancelService = CancelService.instance(context);
    }
  
    @Override
    public void processAnnotations(
        List<JCTree.JCCompilationUnit> roots, Collection<String> classnames) {
      if (roots.isEmpty()) {
        super.processAnnotations(roots, classnames);
      } else {
        setOrigin(roots.head.sourcefile.toUri().toString());
        try {
          super.processAnnotations(roots, classnames);
        } finally {
          setOrigin("");
        }
      }
    }
  
    private void setOrigin(String origin) {
      fileManager.handleOption("apt-origin", Collections.singletonList(origin).iterator());
    }
  
    @Override
    protected void desugar(
        Env<AttrContext> env, Queue<Pair<Env<AttrContext>, JCTree.JCClassDecl>> results) {
      boolean prevDesugaring = desugaring;
      try {
        desugaring = true;
        super.desugar(env, results);
      } finally {
        desugaring = prevDesugaring;
      }
    }
  
    public void setDesugarCallback(Consumer<Env<AttrContext>> callback) {
      this.desugarCallback = callback;
    }
  
    void maybeInvokeDesugarCallback(Env<AttrContext> env) {
      if (desugaring && desugarCallback != null) {
        desugarCallback.accept(env);
      }
    }
  }
  