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.HashMap;
  import java.util.Map;
  import jdkx.lang.model.element.Element;
  import openjdk.source.tree.VariableTree;
  import openjdk.source.util.TreePath;
  import openjdk.tools.javac.api.JavacTrees;
  import openjdk.tools.javac.code.Flags;
  import openjdk.tools.javac.code.Symbol;
  import openjdk.tools.javac.tree.JCTree;
  import openjdk.tools.javac.tree.JCTree.JCVariableDecl;
  import openjdk.tools.javac.tree.TreeInfo;
  import openjdk.tools.javac.tree.TreeMaker;
  import openjdk.tools.javac.util.Context;
  
  /**
   * @author lahvac
   */
  public class NBJavacTrees extends JavacTrees {
  
    private final Map<Element, TreePath> element2paths = new HashMap<>();
  
    public static void preRegister(Context context) {
      context.put(JavacTrees.class, (Context.Factory<JavacTrees>) NBJavacTrees::new);
    }
  
    protected NBJavacTrees(Context context) {
      super(context);
    }
  
    @Override
    public TreePath getPath(Element e) {
      TreePath path = super.getPath(e);
      return path != null ? path : element2paths.get(e);
    }
  
    @Override
    public Symbol getElement(TreePath path) {
      return TreeInfo.symbolFor((JCTree) path.getLeaf());
    }
  
    @Override
    protected Copier createCopier(TreeMaker maker) {
      return new Copier(maker) {
        @Override
        public JCTree visitVariable(VariableTree node, JCTree p) {
          JCVariableDecl old = (JCVariableDecl) node;
          JCVariableDecl nue = (JCVariableDecl) super.visitVariable(node, p);
          if (old.sym != null) {
            nue.mods.flags |= old.sym.flags_field & Flags.EFFECTIVELY_FINAL;
          }
          return nue;
        }
      };
    }
  
    void addPathForElement(Element elem, TreePath path) {
      element2paths.put(elem, path);
    }
  }
  