--- a/stage4/generate_c/search_fb_instance_decl.cc	Sat May 30 16:42:41 2009 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,141 +0,0 @@
-/*
- * (c) 2003 Mario de Sousa
- *
- * Offered to the public under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2 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.
- *
- * 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 IL and ST compiler.
- *
- * Based on the
- * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
- *
- */
-
-
-/* Returns the function block type declaration
- * of a specific function block instance.
- */
-
-
-
-/* Returns the type name of a specific function block
- * instance. This class will search the variable
- * declarations inside the scope given to it
- * searching for the declaration of the function
- * block instance.
- *
- * The class constructor must be given the search scope
- * (function, function block or program within which
- * the function block instance was declared).
- *
- * This class will search the tree from the root given to the
- * constructor. Another option would be to build a symbol table,
- * and search that instead. Building the symbol table would be done
- * while visiting the variable declaration objects in the parse
- * tree. Unfortuantely, generate_c_c does not visit these
- * objects, delegating it to another class. This means that
- * we would need another specialised class just to build the
- * symbol table. We might just as well have a specialised class
- * that searches the tree itself for the relevant info. This
- * class is exactly that...!
- */
-class search_fb_instance_decl_c: public search_visitor_c {
-
-  private:
-    symbol_c *search_scope;
-
-    symbol_c *search_name;
-    symbol_c *current_fb_type_name;
-
-  public:
-    search_fb_instance_decl_c(symbol_c *search_scope) {
-      this->search_scope = search_scope;
-      this->current_fb_type_name = NULL;
-    }
-
-    symbol_c *get_type_name(symbol_c *fb_instance_name) {
-      this->search_name = fb_instance_name;
-      return (symbol_c *)search_scope->accept(*this);
-    }
-
-  public:
-/***************************/
-/* B 0 - Programming Model */
-/***************************/
-    void *visit(library_c *symbol) {
-      /* we do not want to search multiple declaration scopes,
-       * so we do not visit all the functions, fucntion blocks, etc...
-       */
-      return NULL;
-    }
-
-/******************************************/
-/* B 1.4.3 - Declaration & Initialisation */
-/******************************************/
-
-/* name_list ':' function_block_type_name ASSIGN structure_initialization */
-/* structure_initialization -> may be NULL ! */
-    void *visit(fb_name_decl_c *symbol) {
-      current_fb_type_name = symbol->function_block_type_name;
-      return symbol->fb_name_list->accept(*this);
-    }
-
-/* name_list ',' fb_name */
-    void *visit(fb_name_list_c *symbol) {
-      list_c *list = symbol;
-      for(int i = 0; i < list->n; i++) {
-        if (compare_identifiers(list->elements[i], search_name) == 0)
-	  /* by now, current_fb_declaration should be != NULL */
-          return current_fb_type_name;
-      }
-      return NULL;
-    }
-
-/**************************************/
-/* B.1.5 - Program organization units */
-/**************************************/
-/***********************/
-/* B 1.5.1 - Functions */
-/***********************/
-    void *visit(function_declaration_c *symbol) {
-      /* no need to search through all the body, so we only
-       * visit the variable declarations...!
-       */
-      return symbol->var_declarations_list->accept(*this);
-    }
-
-/*****************************/
-/* B 1.5.2 - Function Blocks */
-/*****************************/
-    void *visit(function_block_declaration_c *symbol) {
-      /* no need to search through all the body, so we only
-       * visit the variable declarations...!
-       */
-      return symbol->var_declarations->accept(*this);
-    }
-
-/**********************/
-/* B 1.5.3 - Programs */
-/**********************/
-    void *visit(program_declaration_c *symbol) {
-      /* no need to search through all the body, so we only
-       * visit the variable declarations...!
-       */
-      return symbol->var_declarations->accept(*this);
-    }
-};
-
-
-
-