Missing braces arround extern declarartions in __SET_EXTERNAL define was making problem with GCC in switch case statements
/*
* 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)
*
*/
/*
* 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.
*/
/* TODO: Use a class similar to stage4out_c so that we can have nice indentation when printing an AST
* Create a template so that we can TRACE the execution of other visitor classes doing usefull work!
*/
#include <unistd.h>
#include <stdio.h> /* required for NULL */
#include "absyntax_utils.hh"
#include "../absyntax/visitor.hh"
/*********************************/
/* Class to print a symbol */
/*********************************/
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);
};
print_symbol_c *print_symbol_c::singleton = NULL;
void print_symbol_c::print(symbol_c* symbol) {
if (NULL == singleton) singleton = new print_symbol_c();
if (NULL == singleton) ERROR;
symbol->accept(*singleton);
}
void print_symbol_c::fcall(symbol_c* symbol) {
dump_symbol(symbol);
fprintf(stderr, "\n");
}
void print_symbol_c::dump_symbol(symbol_c* symbol) {
fprintf(stderr, "(%s->%03d:%03d..%03d:%03d) \t%s\t", symbol->first_file, symbol->first_line, symbol->first_column, symbol->last_line, symbol->last_column, symbol->absyntax_cname());
fprintf(stderr, " datatype=");
if (NULL == symbol->datatype)
fprintf(stderr, "NULL\t\t");
else {
fprintf(stderr, "%s", symbol->datatype->absyntax_cname());
}
fprintf(stderr, "\t<-{");
if (symbol->candidate_datatypes.size() == 0) {
fprintf(stderr, "\t\t\t\t\t");
} else if (symbol->candidate_datatypes.size() <= 2) {
for (unsigned int i = 0; i < 2; i++)
if (i < symbol->candidate_datatypes.size())
fprintf(stderr, " %s,", symbol->candidate_datatypes[i]->absyntax_cname());
else
fprintf(stderr, "\t\t\t");
} else {
fprintf(stderr, "(%lu)\t\t\t\t\t", (unsigned long int)symbol->candidate_datatypes.size());
}
fprintf(stderr, "}\t");
/* print the const values... */
fprintf(stderr, " constv{f=%f, i=%"PRId64", u=%"PRIu64", b=%d}\t", symbol->const_value._real64.value, symbol->const_value._int64.value, symbol->const_value._uint64.value, symbol->const_value._bool.value?1:0);
}
void *print_symbol_c::visit(il_instruction_c *symbol) {
dump_symbol(symbol);
/* NOTE: std::map.size() returns a size_type, whose type is dependent on compiler/platform. To be portable, we need to do an explicit type cast. */
fprintf(stderr, " next_il_=%lu ", (unsigned long int)symbol->next_il_instruction.size());
fprintf(stderr, " prev_il_=%lu ", (unsigned long int)symbol->prev_il_instruction.size());
if (symbol->prev_il_instruction.size() == 0)
fprintf(stderr, "(----,");
else if (symbol->prev_il_instruction[0]->datatype == NULL)
fprintf(stderr, "(NULL,");
else if (!get_datatype_info_c::is_type_valid(symbol->prev_il_instruction[0]->datatype))
fprintf(stderr, "(****,");
else
fprintf(stderr, "( ,");
if (symbol->next_il_instruction.size() == 0)
fprintf(stderr, "----)");
else if (symbol->next_il_instruction[0]->datatype == NULL)
fprintf(stderr, "NULL)");
else if (!get_datatype_info_c::is_type_valid(symbol->next_il_instruction[0]->datatype))
fprintf(stderr, "****)");
else
fprintf(stderr, " )");
fprintf(stderr, "\n");
return NULL;
};
/*********************************/
/* Class to print an AST */
/*********************************/
class print_ast_c: public fcall_iterator_visitor_c {
public:
static void print(symbol_c *symbol);
static void print(const char *str);
protected:
void prefix_fcall(symbol_c *symbol);
void suffix_fcall(symbol_c *symbol);
private:
static print_ast_c *singleton;
};
print_ast_c *print_ast_c::singleton = NULL;
void print_ast_c::print(symbol_c* symbol) {
if (NULL == singleton) singleton = new print_ast_c();
if (NULL == singleton) ERROR;
symbol->accept(*singleton);
}
void print_ast_c::print(const char *str) {
fprintf(stderr, "%s", str);
}
void print_ast_c::prefix_fcall(symbol_c* symbol) {print_symbol_c::print(symbol);}
void print_ast_c::suffix_fcall(symbol_c* symbol) {}
/*********************************/
/* The DEBUG class */
/*********************************/
void debug_c::print(const char *str) {
fprintf(stderr, "%s", str);
}
void debug_c::print(symbol_c *symbol) {
print_symbol_c::print(symbol);
}
void debug_c::print_ast(symbol_c *symbol) {
print_ast_c::print(symbol);
}