--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stage3/enum_declaration_check.hh	Fri Nov 23 09:31:55 2012 +0000
@@ -0,0 +1,81 @@
+/*
+ *  matiec - a compiler for the programming languages defined in IEC 61131-3
+ *
+ *  Copyright (C) 2012  Mario de Sousa (msousa@fe.up.pt)
+ *
+ *  This program 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.
+ *
+ *  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 Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * This code is made available on the understanding that it will not be
+ * used in safety-critical situations without a full and competent review.
+ */
+
+/*
+ * An IEC 61131-3 compiler.
+ *
+ * Based on the
+ * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
+ *
+ */
+
+
+#include "../absyntax_utils/absyntax_utils.hh"
+
+class populate_enumvalue_symtable_c;
+
+class enum_declaration_check_c : public iterator_visitor_c {
+  private:
+    int error_count;
+    int current_display_error_level;
+    populate_enumvalue_symtable_c *populate_enumvalue_symtable;
+    symbol_c::enumvalue_symtable_t *global_enumvalue_symtable;
+    
+  public:
+     enum_declaration_check_c(symbol_c *ignore);
+    ~enum_declaration_check_c(void);
+    int get_error_count();
+
+    
+    /***************************/
+    /* B 0 - Programming Model */
+    /***************************/
+    void *visit(library_c *symbol);
+
+    /**********************/
+    /* B.1.3 - Data types */
+    /**********************/
+    void *visit(data_type_declaration_c *symbol);
+  
+    /***********************/
+    /* B 1.5.1 - Functions */
+    /***********************/
+    void *visit(function_declaration_c *symbol);
+   
+    /*****************************/
+    /* B 1.5.2 - Function Blocks */
+    /*****************************/
+    void *visit(function_block_declaration_c *symbol);
+
+    /******************************************/
+    /* B 1.5.3 - Declaration & Initialisation */
+    /******************************************/
+    void *visit(program_declaration_c *symbol);
+
+    /********************************/
+    /* B 1.7 Configuration elements */
+    /********************************/
+    void *visit(configuration_declaration_c *symbol);
+    void *visit(resource_declaration_c *symbol);
+    void *visit(single_resource_declaration_c *symbol);    
+};