package net.sourceforge.jenesis4java.impl;
   
   /*
    * #%L
    * Jenesis 4 Java Code Generator
    * %%
    * Copyright (C) 2000 - 2015 jenesis4java
    * %%
    * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Lesser General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   * 
   * This program 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 Lesser Public License for more details.
   * 
   * You should have received a copy of the GNU General Lesser Public
   * License along with this program.  If not, see
   * <http://www.gnu.org/licenses/lgpl-3.0.html>.
   * #L%
   */
  
  /**
   * Copyright (C) 2008, 2010 Richard van Nieuwenhoven - ritchie [at] gmx [dot] at
   * Copyright (C) 2000, 2001 Paul Cody Johnston - pcj@inxar.org <br>
   * This file is part of Jenesis4java. Jenesis4java is free software: you can
   * redistribute it and/or modify it under the terms of the GNU Lesser General
   * Public License as published by the Free Software Foundation, either version 3
   * of the License, or (at your option) any later version.<br>
   * Jenesis4java 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 Lesser General Public License for more
   * details.<br>
   * You should have received a copy of the GNU Lesser General Public License
   * along with Jenesis4java. If not, see <http://www.gnu.org/licenses/>.
   */
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import net.sourceforge.jenesis4java.Catch;
  import net.sourceforge.jenesis4java.CodeWriter;
  import net.sourceforge.jenesis4java.FormalParameter;
  import net.sourceforge.jenesis4java.ReplacingVisitor;
  import net.sourceforge.jenesis4java.Type;
  import net.sourceforge.jenesis4java.impl.util.VisitorUtils;
  
  /**
   * CATCH STATEMENT
   */
  class MCatch extends MStatement.BlockStatement implements Catch {
  
      private List<FormalParameter> formalParameters;
  
      MCatch(MVM vm, Type type, String name) {
          super(vm);
          formalParameters = new ArrayList<>(1);
          formalParameters.add(createFormalParameter(type, name));
      }
  
      @Override
      public FormalParameter getThrowable() {
          return formalParameters.get(0);
      }
  
      @Override
      public MCatch setThrowable(Type type, String name) {
          formalParameters.clear();
          formalParameters.add(createFormalParameter(type, name));
          return this;
      }
  
      @Override
      public List<FormalParameter> getThrowables() {
          return Collections.unmodifiableList(formalParameters);
      }
  
      @Override
      public Catch addThrowable(Type type, String name) {
          formalParameters.add(createFormalParameter(type, name));
          return this;
      }
  
      @Override
      public CodeWriter toCode(CodeWriter out) {
          appendCommentsAndLabel(out);
          if (!out.isLineNew()) {
              out.space();
          }
          out.write("catch (");
          boolean first = true;
          for (FormalParameter fp : formalParameters) {
              if (!first) {
                  out.write(" | ");
              }
              first = false;
             out.write(fp.getType());
         }
         out.space();
         out.write(formalParameters.get(0).getName());
         out.write(')');
         writeBlock(out, vm.getStyle("catch"));
         return out;
     }
 
     @Override
     public void visit(ReplacingVisitor visitor) {
         super.visit(visitor);
         VisitorUtils.visit(formalParameters, this, visitor);
     }
 
     private MDeclaration.MFormalParameter createFormalParameter(Type type, String name) {
         return new MDeclaration.MFormalParameter(vm, type, name);
     }
 }