vala/valaswitchstatement.vala

   1 /* valaswitchstatement.vala
   2  *
   3  * Copyright (C) 2006-2007  Jürg Billeter
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  18  *
  19  * Author:
  20  *      Jürg Billeter <j@bitron.ch>
  21  */
  22
  23 using GLib;
  24
  25 /**
  26  * Represents a switch selection statement in the source code.
  27  */
  28 public class Vala.SwitchStatement : Statement {
  29         /**
  30          * Specifies the switch expression.
  31          */
  32         public Expression! expression {
  33                 get {
  34                         return _expression;
  35                 }
  36                 set construct {
  37                         _expression = value;
  38                         _expression.parent_node = this;
  39                 }
  40         }
  41
  42         private Expression! _expression;
  43         private List<SwitchSection> sections;
  44
  45         /**
  46          * Creates a new switch statement.
  47          *
  48          * @param expr   switch expression
  49          * @param source reference to source code
  50          * @return       newly created switch statement
  51          */
  52         public SwitchStatement (Expression! expr, SourceReference source) {
  53                 expression = expr;
  54                 source_reference = source;
  55         }
  56
  57         /**
  58          * Appends the specified section to the list of switch sections.
  59          *
  60          * @param section a switch section
  61          */
  62         public void add_section (SwitchSection! section) {
  63                 sections.append (section);
  64         }
  65
  66         /**
  67          * Returns a copy of the list of switch sections.
  68          *
  69          * @return section list
  70          */
  71         public List<weak SwitchSection> get_sections () {
  72                 return sections.copy ();
  73         }
  74
  75         public override void accept (CodeVisitor! visitor) {
  76                 expression.accept (visitor);
  77
  78                 visitor.visit_end_full_expression (expression);
  79
  80                 foreach (SwitchSection section in sections) {
  81                         section.accept (visitor);
  82                 }
  83
  84                 visitor.visit_switch_statement (this);
  85         }
  86
  87         public override void replace (CodeNode! old_node, CodeNode! new_node) {
  88                 if (expression == old_node) {
  89                         expression = (Expression) new_node;
  90                 }
  91         }
  92 }