--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/absyntax_utils/debug_ast.hh Tue Oct 16 18:06:32 2012 +0100
@@ -0,0 +1,94 @@
+/*
+ * matiec - a compiler for the programming languages defined in IEC 61131-3
+ * Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt)
+ * Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant
+ *
+ * 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)
+ *
+ */
+
+
+/*
+ * Some classes to help with debuging.
+ *
+ * These classes will print out the current state of a symbol or a portion of the Abstract Syntax Tree.
+ */
+
+
+
+
+
+
+#include "../absyntax/visitor.hh"
+
+
+
+class print_symbol_c: public fcall_visitor_c {
+ public:
+ static void print(symbol_c *symbol);
+
+ protected:
+ void fcall(symbol_c *symbol);
+ /* AST symbols with extra data have their own specialised methods for printing that data */
+ void *visit(il_instruction_c *symbol);
+
+ private:
+ static print_symbol_c *singleton;
+
+ void dump_symbol(symbol_c* symbol);
+};
+
+
+
+
+
+
+class print_ast_c: public fcall_iterator_visitor_c {
+ public:
+ static void print(symbol_c *symbol);
+
+ protected:
+ void prefix_fcall(symbol_c *symbol);
+ void suffix_fcall(symbol_c *symbol);
+
+ private:
+ static print_ast_c *singleton;
+};
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+