etisserant@0: /*
msousa@261: * matiec - a compiler for the programming languages defined in IEC 61131-3
msousa@261: * Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt)
Edouard@279: * Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant
msousa@261: *
msousa@261: * This program is free software: you can redistribute it and/or modify
msousa@261: * it under the terms of the GNU General Public License as published by
msousa@261: * the Free Software Foundation, either version 3 of the License, or
msousa@261: * (at your option) any later version.
msousa@261: *
msousa@261: * This program is distributed in the hope that it will be useful,
msousa@261: * but WITHOUT ANY WARRANTY; without even the implied warranty of
msousa@261: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
msousa@261: * GNU General Public License for more details.
msousa@261: *
msousa@261: * You should have received a copy of the GNU General Public License
msousa@261: * along with this program. If not, see .
msousa@261: *
etisserant@0: *
etisserant@0: * This code is made available on the understanding that it will not be
etisserant@0: * used in safety-critical situations without a full and competent review.
etisserant@0: */
etisserant@0:
etisserant@0: /*
msousa@261: * An IEC 61131-3 compiler.
etisserant@0: *
etisserant@0: * Based on the
etisserant@0: * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
etisserant@0: *
etisserant@0: */
etisserant@0:
etisserant@0: /*
etisserant@0: * Definition of the Abstract Syntax data structure components
etisserant@0: */
etisserant@0:
etisserant@0: #include
etisserant@0: #include /* required for exit() */
etisserant@0: #include
etisserant@0:
etisserant@0: #include "absyntax.hh"
etisserant@0: //#include "../stage1_2/iec.hh" /* required for BOGUS_TOKEN_ID, etc... */
etisserant@0: #include "visitor.hh"
etisserant@0:
msousa@350: #define ERROR error_exit(__FILE__,__LINE__)
msousa@350: /* function defined in main.cc */
msousa@350: extern void error_exit(const char *file_name, int line_no);
msousa@350:
msousa@350: #define ABORT(str) {printf("ERROR: %s\n", str); ERROR;}
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0: /* The base class of all symbols */
msousa@286: symbol_c::symbol_c(
msousa@287: int first_line, int first_column, const char *ffile, long int first_order,
msousa@287: int last_line, int last_column, const char *lfile, long int last_order ) {
msousa@286: this->first_file = ffile,
mario@69: this->first_line = first_line;
mario@69: this->first_column = first_column;
msousa@287: this->first_order = first_order;
msousa@286: this->last_file = lfile,
mario@69: this->last_line = last_line;
mario@69: this->last_column = last_column;
msousa@287: this->last_order = last_order;
msousa@417: this->datatype = NULL;
mario@69: }
mario@69:
mario@69:
mario@69:
msousa@286: token_c::token_c(const char *value,
msousa@287: int fl, int fc, const char *ffile, long int forder,
msousa@287: int ll, int lc, const char *lfile, long int lorder)
msousa@287: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) {
etisserant@0: this->value = value;
etisserant@0: // printf("New token: %s\n", value);
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0:
msousa@286: list_c::list_c(
msousa@287: int fl, int fc, const char *ffile, long int forder,
msousa@287: int ll, int lc, const char *lfile, long int lorder)
msousa@287: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) {
etisserant@0: n = 0;
etisserant@0: elements = NULL;
etisserant@0: }
etisserant@0:
msousa@286: list_c::list_c(symbol_c *elem,
msousa@287: int fl, int fc, const char *ffile, long int forder,
msousa@287: int ll, int lc, const char *lfile, long int lorder)
msousa@287: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) {
etisserant@0: n = 0;
etisserant@0: elements = NULL;
etisserant@0: add_element(elem);
etisserant@0: }
etisserant@0:
msousa@350: /* append a new element to the end of the list */
etisserant@0: void list_c::add_element(symbol_c *elem) {
etisserant@0: //printf("list_c::add_element()\n");
etisserant@0: n++;
etisserant@0: elements = (symbol_c **)realloc(elements, n * sizeof(symbol_c *));
etisserant@0: if (elements == NULL)
etisserant@0: ABORT("Out of memory");
etisserant@0: elements[n - 1] = elem;
mario@69:
mario@69: if (elem == NULL)
mario@69: return;
mario@69:
mario@69: /* adjust the location parameters, taking into account the new element. */
mario@69: if ((first_line == elem->first_line) &&
mario@69: (first_column > elem->first_column)) {
mario@69: first_column = elem->first_column;
mario@69: }
mario@69: if (first_line > elem->first_line) {
mario@69: first_line = elem->first_line;
mario@69: first_column = elem->first_column;
mario@69: }
mario@69: if ((last_line == elem->last_line) &&
mario@69: (last_column < elem->last_column)) {
mario@69: last_column = elem->last_column;
mario@69: }
mario@69: if (last_line < elem->last_line) {
mario@69: last_line = elem->last_line;
mario@69: last_column = elem->last_column;
mario@69: }
mario@69: }
etisserant@0:
msousa@350: /* insert a new element before position pos. */
msousa@350: /* To insert into the begining of list, call with pos=0 */
msousa@350: /* To insert into the end of list, call with pos=list->n */
msousa@350: void list_c::insert_element(symbol_c *elem, int pos) {
msousa@350: if (pos > n) ERROR;
msousa@350:
msousa@350: /* add new element to end of list. Basically alocate required memory... */
msousa@350: /* will also increment n by 1 ! */
msousa@350: add_element(elem);
msousa@350: /* if not inserting into end position, shift all elements up one position, to open up a slot in pos for new element */
msousa@438: if (pos < (n-1)) for (int i = n-2; i >= pos; i--) elements[i+1] = elements[i];
msousa@350: elements[pos] = elem;
msousa@350: }
msousa@350:
msousa@350:
msousa@438: /* remove element at position pos. */
msousa@438: void list_c::remove_element(int pos) {
msousa@438: if (pos > n) ERROR;
msousa@438:
msousa@438: /* Shift all elements down one position, starting at the entry to delete. */
msousa@438: for (int i = pos; i < n-1; i++) elements[i] = elements[i+1];
msousa@438: /* corrent the new size, and free unused memory */
msousa@438: n--;
msousa@438: elements = (symbol_c **)realloc(elements, n * sizeof(symbol_c *));
msousa@438: }
msousa@350:
msousa@350: #define SYM_LIST(class_name_c, ...) \
msousa@286: class_name_c::class_name_c( \
msousa@287: int fl, int fc, const char *ffile, long int forder, \
msousa@287: int ll, int lc, const char *lfile, long int lorder) \
msousa@287: :list_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) {} \
msousa@286: class_name_c::class_name_c(symbol_c *elem, \
msousa@287: int fl, int fc, const char *ffile, long int forder, \
msousa@287: int ll, int lc, const char *lfile, long int lorder) \
msousa@287: :list_c(elem, fl, fc, ffile, forder, ll, lc, lfile, lorder) {} \
msousa@286: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@286:
msousa@350: #define SYM_TOKEN(class_name_c, ...) \
msousa@286: class_name_c::class_name_c(const char *value, \
msousa@287: int fl, int fc, const char *ffile, long int forder, \
msousa@287: int ll, int lc, const char *lfile, long int lorder) \
msousa@287: :token_c(value, fl, fc, ffile, forder, ll, lc, lfile, lorder) {} \
msousa@286: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@286:
msousa@350: #define SYM_REF0(class_name_c, ...) \
msousa@286: class_name_c::class_name_c( \
msousa@287: int fl, int fc, const char *ffile, long int forder, \
msousa@287: int ll, int lc, const char *lfile, long int lorder) \
msousa@287: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) {} \
msousa@286: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@286:
msousa@286:
msousa@350: #define SYM_REF1(class_name_c, ref1, ...) \
msousa@350: class_name_c::class_name_c(symbol_c *ref1, \
msousa@350: int fl, int fc, const char *ffile, long int forder, \
msousa@350: int ll, int lc, const char *lfile, long int lorder) \
msousa@350: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) { \
msousa@350: this->ref1 = ref1; \
msousa@350: } \
msousa@350: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@350:
msousa@350:
msousa@350: #define SYM_REF2(class_name_c, ref1, ref2, ...) \
msousa@350: class_name_c::class_name_c(symbol_c *ref1, \
msousa@350: symbol_c *ref2, \
msousa@350: int fl, int fc, const char *ffile, long int forder, \
msousa@350: int ll, int lc, const char *lfile, long int lorder) \
msousa@350: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) { \
msousa@350: this->ref1 = ref1; \
msousa@350: this->ref2 = ref2; \
msousa@350: } \
msousa@350: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@350:
msousa@350:
msousa@350: #define SYM_REF3(class_name_c, ref1, ref2, ref3, ...) \
msousa@350: class_name_c::class_name_c(symbol_c *ref1, \
msousa@350: symbol_c *ref2, \
msousa@350: symbol_c *ref3, \
msousa@350: int fl, int fc, const char *ffile, long int forder, \
msousa@350: int ll, int lc, const char *lfile, long int lorder) \
msousa@350: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) { \
msousa@350: this->ref1 = ref1; \
msousa@350: this->ref2 = ref2; \
msousa@350: this->ref3 = ref3; \
msousa@350: } \
msousa@350: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@350:
msousa@350:
msousa@350: #define SYM_REF4(class_name_c, ref1, ref2, ref3, ref4, ...) \
msousa@286: class_name_c::class_name_c(symbol_c *ref1, \
msousa@286: symbol_c *ref2, \
msousa@286: symbol_c *ref3, \
msousa@286: symbol_c *ref4, \
msousa@287: int fl, int fc, const char *ffile, long int forder, \
msousa@287: int ll, int lc, const char *lfile, long int lorder) \
msousa@287: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) { \
msousa@286: this->ref1 = ref1; \
msousa@286: this->ref2 = ref2; \
msousa@286: this->ref3 = ref3; \
msousa@286: this->ref4 = ref4; \
msousa@286: } \
msousa@286: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@286:
msousa@286:
msousa@350: #define SYM_REF5(class_name_c, ref1, ref2, ref3, ref4, ref5, ...) \
msousa@286: class_name_c::class_name_c(symbol_c *ref1, \
msousa@286: symbol_c *ref2, \
msousa@286: symbol_c *ref3, \
msousa@286: symbol_c *ref4, \
msousa@286: symbol_c *ref5, \
msousa@287: int fl, int fc, const char *ffile, long int forder, \
msousa@287: int ll, int lc, const char *lfile, long int lorder) \
msousa@287: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) { \
msousa@286: this->ref1 = ref1; \
msousa@286: this->ref2 = ref2; \
msousa@286: this->ref3 = ref3; \
msousa@286: this->ref4 = ref4; \
msousa@286: this->ref5 = ref5; \
msousa@286: } \
msousa@286: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
msousa@286:
msousa@286:
msousa@286:
msousa@350: #define SYM_REF6(class_name_c, ref1, ref2, ref3, ref4, ref5, ref6, ...) \
msousa@286: class_name_c::class_name_c(symbol_c *ref1, \
msousa@286: symbol_c *ref2, \
msousa@286: symbol_c *ref3, \
msousa@286: symbol_c *ref4, \
msousa@286: symbol_c *ref5, \
msousa@286: symbol_c *ref6, \
msousa@287: int fl, int fc, const char *ffile, long int forder, \
msousa@287: int ll, int lc, const char *lfile, long int lorder) \
msousa@287: :symbol_c(fl, fc, ffile, forder, ll, lc, lfile, lorder) { \
msousa@286: this->ref1 = ref1; \
msousa@286: this->ref2 = ref2; \
msousa@286: this->ref3 = ref3; \
msousa@286: this->ref4 = ref4; \
msousa@286: this->ref5 = ref5; \
msousa@286: this->ref6 = ref6; \
msousa@286: } \
etisserant@0: void *class_name_c::accept(visitor_c &visitor) {return visitor.visit(this);}
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0: #include "absyntax.def"
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0: #undef SYM_LIST
etisserant@0: #undef SYM_TOKEN
etisserant@0: #undef SYM_TOKEN
etisserant@0: #undef SYM_REF0
mario@69: #undef SYM_REF1
etisserant@0: #undef SYM_REF2
mario@69: #undef SYM_REF3
etisserant@0: #undef SYM_REF4
mario@69: #undef SYM_REF5
etisserant@0: #undef SYM_REF6
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0: