author | laurent |
Sun, 29 Nov 2009 16:38:11 +0100 | |
changeset 217 | f5dfadf5de54 |
parent 202 | da1a8186f86f |
child 240 | f78fa87bb4cb |
permissions | -rwxr-xr-x |
70 | 1 |
/* |
2 |
* (c) 2003 Mario de Sousa |
|
3 |
* |
|
4 |
* Offered to the public under the terms of the GNU General Public License |
|
5 |
* as published by the Free Software Foundation; either version 2 of the |
|
6 |
* License, or (at your option) any later version. |
|
7 |
* |
|
8 |
* This program is distributed in the hope that it will be useful, but |
|
9 |
* WITHOUT ANY WARRANTY; without even the implied warranty of |
|
10 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
|
11 |
* Public License for more details. |
|
12 |
* |
|
13 |
* This code is made available on the understanding that it will not be |
|
14 |
* used in safety-critical situations without a full and competent review. |
|
15 |
*/ |
|
16 |
||
17 |
/* |
|
18 |
* An IEC 61131-3 IL and ST compiler. |
|
19 |
* |
|
20 |
* Based on the |
|
21 |
* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10) |
|
22 |
* |
|
23 |
*/ |
|
24 |
||
25 |
||
26 |
/* |
|
27 |
* Conversion of basic abstract syntax constructs. |
|
28 |
* |
|
29 |
* This is part of the 4th stage that generates |
|
30 |
* a c++ source program equivalent to the IL and ST |
|
31 |
* code. |
|
32 |
*/ |
|
33 |
||
34 |
||
35 |
||
36 |
||
37 |
||
38 |
||
39 |
//#include <stdio.h> /* required for NULL */ |
|
40 |
//#include <string> |
|
41 |
//#include <iostream> |
|
42 |
||
43 |
//#include "../../util/symtable.hh" |
|
44 |
||
45 |
//#include "generate_c.hh" |
|
46 |
||
139
668a54686827
added missing includes on some platform (gentoo/gcc-4.3.1)
etisserant
parents:
118
diff
changeset
|
47 |
#include <string.h> |
70 | 48 |
|
49 |
||
50 |
||
51 |
||
149 | 52 |
typedef struct |
53 |
{ |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
54 |
symbol_c *param_name; |
149 | 55 |
symbol_c *param_value; |
56 |
symbol_c *param_type; |
|
57 |
function_param_iterator_c::param_direction_t param_direction; |
|
58 |
} FUNCTION_PARAM; |
|
59 |
||
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
60 |
#define DECLARE_PARAM_LIST()\ |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
61 |
std::list<FUNCTION_PARAM*> param_list;\ |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
62 |
std::list<FUNCTION_PARAM*>::iterator pt;\ |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
63 |
FUNCTION_PARAM *param; |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
64 |
|
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
65 |
#define ADD_PARAM_LIST(name, value, type, direction)\ |
149 | 66 |
param = new FUNCTION_PARAM;\ |
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
67 |
param->param_name = name;\ |
149 | 68 |
param->param_value = value;\ |
69 |
param->param_type = type;\ |
|
70 |
param->param_direction = direction;\ |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
71 |
param_list.push_back(param); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
72 |
|
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
73 |
#define PARAM_LIST_ITERATOR() for(pt = param_list.begin(); pt != param_list.end(); pt++) |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
74 |
|
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
75 |
#define PARAM_NAME (*pt)->param_name |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
76 |
#define PARAM_VALUE (*pt)->param_value |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
77 |
#define PARAM_TYPE (*pt)->param_type |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
78 |
#define PARAM_DIRECTION (*pt)->param_direction |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
79 |
|
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
80 |
#define CLEAR_PARAM_LIST()\ |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
81 |
PARAM_LIST_ITERATOR()\ |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
82 |
delete *pt;\ |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
83 |
param_list.clear(); |
70 | 84 |
|
85 |
||
86 |
class generate_c_base_c: public iterator_visitor_c { |
|
87 |
||
88 |
protected: |
|
89 |
stage4out_c &s4o; |
|
90 |
||
91 |
private: |
|
92 |
/* Unlike programs that are mapped onto C++ classes, Function Blocks are mapped onto a data structure type |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
93 |
* and a separate function containing the code. This function is passed a pointer to an instance of the data |
70 | 94 |
* structure. This means that the code inside the functions must insert a pointer to the data structure whenever |
95 |
* it wishes to access a Function Block variable. |
|
96 |
* The variable_prefix_ variable will contain the correct string which needs to be prefixed to all variable accesses. |
|
97 |
* This string is set with the set_variable_prefix() member function. |
|
98 |
*/ |
|
99 |
const char *variable_prefix_; |
|
100 |
||
101 |
public: |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
102 |
generate_c_base_c(stage4out_c *s4o_ptr): s4o(*s4o_ptr) { |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
103 |
variable_prefix_ = NULL; |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
104 |
} |
70 | 105 |
~generate_c_base_c(void) {} |
106 |
||
107 |
void set_variable_prefix(const char *variable_prefix) {variable_prefix_ = variable_prefix;} |
|
160 | 108 |
const char *get_variable_prefix(void) {return variable_prefix_;} |
146
eef5e62048c7
Adding support for EN/ENO params in function and function blocks (standard function not supported yet)
lbessard
parents:
139
diff
changeset
|
109 |
bool is_variable_prefix_null(void) {return variable_prefix_ == NULL;} |
70 | 110 |
void print_variable_prefix(void) { |
111 |
if (variable_prefix_ != NULL) |
|
112 |
s4o.print(variable_prefix_); |
|
113 |
} |
|
114 |
||
115 |
void *print_token(token_c *token, int offset = 0) { |
|
116 |
return s4o.printupper((token->value)+offset); |
|
117 |
} |
|
118 |
||
119 |
void *print_literal(symbol_c *type, symbol_c *value) { |
|
120 |
s4o.print("__"); |
|
121 |
type->accept(*this); |
|
122 |
s4o.print("_LITERAL("); |
|
123 |
value->accept(*this); |
|
124 |
s4o.print(")"); |
|
125 |
return NULL; |
|
126 |
} |
|
127 |
||
128 |
void *print_striped_token(token_c *token, int offset = 0) { |
|
129 |
std::string str = ""; |
|
130 |
for (unsigned int i = offset; i < strlen(token->value); i++) |
|
131 |
if (token->value[i] != '_') |
|
132 |
str += token->value[i]; |
|
133 |
return s4o.printupper(str); |
|
134 |
} |
|
135 |
||
136 |
void *print_striped_binary_token(token_c *token, unsigned int offset = 0) { |
|
137 |
/* convert the binary value to hexadecimal format... */ |
|
138 |
unsigned char value, bit_mult; |
|
139 |
unsigned int i; |
|
140 |
int total_bits; |
|
141 |
char str[2] = {'A', '\0'}; /* since the s4o object is not prepared to print out one character at a time... */ |
|
142 |
||
143 |
s4o.print("0x"); |
|
144 |
||
145 |
total_bits = 0; |
|
146 |
for (i = offset; i < strlen(token->value); i++) |
|
147 |
if (token->value[i] != '_') |
|
148 |
total_bits++; |
|
149 |
||
150 |
value = 0; |
|
151 |
bit_mult = (unsigned char)1 << (((total_bits+3)%4)+1); |
|
152 |
for (i = offset; i < strlen(token->value); i++) { |
|
153 |
if (token->value[i] != '_') { |
|
154 |
bit_mult /= 2; |
|
155 |
value += bit_mult * ((token->value[i] == '0')? 0:1); |
|
156 |
if (bit_mult == 1) { |
|
157 |
str[0] = (value <= 9)? (char)'0' + value : (char)'A' + value; |
|
158 |
s4o.print(str); |
|
159 |
bit_mult = 0x10; |
|
160 |
value = 0; |
|
161 |
} |
|
162 |
} |
|
163 |
} |
|
164 |
||
165 |
return NULL; |
|
166 |
} |
|
167 |
||
168 |
void *print_list(list_c *list, |
|
169 |
std::string pre_elem_str = "", |
|
170 |
std::string inter_elem_str = "", |
|
171 |
std::string post_elem_str = "", |
|
172 |
visitor_c *visitor = NULL) { |
|
173 |
if (visitor == NULL) visitor = this; |
|
174 |
||
175 |
if (list->n > 0) { |
|
176 |
//std::cout << "generate_c_base_c::print_list(n = " << list->n << ") 000\n"; |
|
177 |
s4o.print(pre_elem_str); |
|
178 |
list->elements[0]->accept(*visitor); |
|
179 |
} |
|
180 |
||
181 |
for(int i = 1; i < list->n; i++) { |
|
182 |
//std::cout << "generate_c_base_c::print_list " << i << "\n"; |
|
183 |
s4o.print(inter_elem_str); |
|
184 |
list->elements[i]->accept(*visitor); |
|
185 |
} |
|
186 |
||
187 |
if (list->n > 0) |
|
188 |
s4o.print(post_elem_str); |
|
189 |
||
190 |
return NULL; |
|
191 |
} |
|
192 |
||
193 |
||
194 |
void *print_binary_expression(symbol_c *l_exp, |
|
195 |
symbol_c *r_exp, |
|
196 |
const char *operation) { |
|
197 |
s4o.print("("); |
|
198 |
l_exp->accept(*this); |
|
199 |
s4o.print(operation); |
|
200 |
r_exp->accept(*this); |
|
201 |
s4o.print(")"); |
|
202 |
return NULL; |
|
203 |
} |
|
204 |
||
205 |
void *print_unary_expression(symbol_c *exp, |
|
206 |
const char *operation) { |
|
207 |
s4o.print(operation); |
|
208 |
s4o.print("("); |
|
209 |
exp->accept(*this); |
|
210 |
s4o.print(")"); |
|
211 |
return NULL; |
|
212 |
} |
|
213 |
||
214 |
void *print_binary_function(const char *function, |
|
215 |
symbol_c *l_exp, |
|
216 |
symbol_c *r_exp) { |
|
217 |
s4o.print(function); |
|
218 |
s4o.print("("); |
|
219 |
l_exp->accept(*this); |
|
220 |
s4o.print(", "); |
|
221 |
r_exp->accept(*this); |
|
222 |
s4o.print(")"); |
|
223 |
return NULL; |
|
224 |
} |
|
225 |
||
226 |
void *print_compare_function(const char *function, |
|
227 |
symbol_c *compare_type, |
|
228 |
symbol_c *l_exp, |
|
229 |
symbol_c *r_exp) { |
|
230 |
s4o.print(function); |
|
231 |
compare_type->accept(*this); |
|
149 | 232 |
s4o.print("(__BOOL_LITERAL(TRUE), NULL, 2, "); |
70 | 233 |
l_exp->accept(*this); |
234 |
s4o.print(", "); |
|
235 |
r_exp->accept(*this); |
|
236 |
s4o.print(")"); |
|
237 |
return NULL; |
|
238 |
} |
|
239 |
||
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
240 |
void *print_check_function(symbol_c *type, |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
241 |
symbol_c *value, |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
242 |
symbol_c *fb_name = NULL, |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
243 |
bool temp = false) { |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
244 |
search_base_type_c search_base_type; |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
245 |
bool is_subrange = search_base_type.type_is_subrange(type); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
246 |
if (is_subrange) { |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
247 |
s4o.print("__CHECK_"); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
248 |
type->accept(*this); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
249 |
s4o.print("("); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
250 |
} |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
251 |
if (fb_name != NULL) { |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
252 |
print_variable_prefix(); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
253 |
fb_name->accept(*this); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
254 |
s4o.print("."); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
255 |
} |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
256 |
if (temp) |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
257 |
s4o.print(TEMP_VAR); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
258 |
value->accept(*this); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
259 |
if (is_subrange) |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
260 |
s4o.print(")"); |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
261 |
return NULL; |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
262 |
} |
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
263 |
|
70 | 264 |
/***************************/ |
265 |
/* 2.1.6 - Pragmas */ |
|
266 |
/***************************/ |
|
267 |
/* Do not use print_token() as it will change everything into uppercase */ |
|
268 |
void *visit(pragma_c *symbol) {return s4o.print(symbol->value);} |
|
269 |
||
270 |
||
271 |
/***************************/ |
|
272 |
/* B 0 - Programming Model */ |
|
273 |
/***************************/ |
|
274 |
/* leave for derived classes... */ |
|
275 |
||
276 |
||
277 |
||
278 |
/*************************/ |
|
279 |
/* B.1 - Common elements */ |
|
280 |
/*************************/ |
|
281 |
/*******************************************/ |
|
282 |
/* B 1.1 - Letters, digits and identifiers */ |
|
283 |
/*******************************************/ |
|
284 |
void *visit(identifier_c *symbol) {return print_token(symbol);} |
|
285 |
||
286 |
/*********************/ |
|
287 |
/* B 1.2 - Constants */ |
|
288 |
/*********************/ |
|
289 |
/* originally empty... */ |
|
290 |
||
291 |
/******************************/ |
|
292 |
/* B 1.2.1 - Numeric Literals */ |
|
293 |
/******************************/ |
|
294 |
void *visit(real_c *symbol) {return print_striped_token(symbol);} |
|
295 |
void *visit(integer_c *symbol) {return print_striped_token(symbol);} |
|
296 |
void *visit(binary_integer_c *symbol) {return print_striped_binary_token(symbol, 2);} |
|
297 |
void *visit(octal_integer_c *symbol) {s4o.print("0"); return print_striped_token(symbol, 2);} |
|
298 |
void *visit(hex_integer_c *symbol) {s4o.print("0x"); return print_striped_token(symbol, 3);} |
|
299 |
||
300 |
void *visit(integer_literal_c *symbol) {return print_literal(symbol->type, symbol->value);} |
|
301 |
void *visit(real_literal_c *symbol) {return print_literal(symbol->type, symbol->value);} |
|
302 |
void *visit(bit_string_literal_c *symbol) {return print_literal(symbol->type, symbol->value);} |
|
303 |
void *visit(boolean_literal_c *symbol) {return print_literal(symbol->type, symbol->value);} |
|
304 |
||
305 |
/* helper class for boolean_literal_c */ |
|
306 |
void *visit(boolean_true_c *symbol) {s4o.print("TRUE"); return NULL;} |
|
307 |
void *visit(boolean_false_c *symbol) {s4o.print("FALSE"); return NULL;} |
|
308 |
||
118
d4cf7ea933a4
Problem with negated literals while compiling generated C file on 32bits systems fixed
lbessard
parents:
98
diff
changeset
|
309 |
void *visit(neg_literal_c *symbol) { |
d4cf7ea933a4
Problem with negated literals while compiling generated C file on 32bits systems fixed
lbessard
parents:
98
diff
changeset
|
310 |
s4o.print("-"); |
d4cf7ea933a4
Problem with negated literals while compiling generated C file on 32bits systems fixed
lbessard
parents:
98
diff
changeset
|
311 |
symbol->exp->accept(*this); |
d4cf7ea933a4
Problem with negated literals while compiling generated C file on 32bits systems fixed
lbessard
parents:
98
diff
changeset
|
312 |
return NULL; |
d4cf7ea933a4
Problem with negated literals while compiling generated C file on 32bits systems fixed
lbessard
parents:
98
diff
changeset
|
313 |
} |
d4cf7ea933a4
Problem with negated literals while compiling generated C file on 32bits systems fixed
lbessard
parents:
98
diff
changeset
|
314 |
|
98 | 315 |
void *visit(neg_expression_c *symbol) { |
316 |
s4o.print("-"); |
|
317 |
symbol->exp->accept(*this); |
|
318 |
return NULL; |
|
319 |
} |
|
320 |
||
70 | 321 |
/*******************************/ |
322 |
/* B.1.2.2 Character Strings */ |
|
323 |
/*******************************/ |
|
324 |
void *visit(double_byte_character_string_c *symbol) { |
|
325 |
// TO DO ... |
|
326 |
ERROR; |
|
327 |
return print_token(symbol); |
|
328 |
} |
|
329 |
||
330 |
void *visit(single_byte_character_string_c *symbol) { |
|
331 |
std::string str = ""; |
|
332 |
unsigned int count = 0; |
|
333 |
str += '"'; |
|
334 |
/* we ignore the first and last bytes, they will be the character ' */ |
|
335 |
for (unsigned int i = 1; i < strlen(symbol->value) - 1; i++) { |
|
336 |
char c = symbol->value[i]; |
|
337 |
if ((c == '\\') || (c == '"')) |
|
338 |
{str += '\\'; str += c; count ++; continue;} |
|
339 |
if (c != '$') |
|
340 |
{str += c; count++; continue;} |
|
341 |
/* this should be safe, since the code has passed the syntax parser!! */ |
|
342 |
c = symbol->value[++i]; |
|
343 |
switch (c) { |
|
344 |
case '$': |
|
345 |
case '\'': |
|
346 |
{str += c; count++; continue;} |
|
347 |
case 'L': |
|
348 |
case 'l': |
|
349 |
{str += "\x0A"; /* LF */; count++; continue;} |
|
350 |
case 'N': |
|
351 |
case 'n': |
|
352 |
{str += "\\x0A"; /* NL */; count++; continue;} |
|
353 |
case 'P': |
|
354 |
case 'p': |
|
355 |
{str += "\\f"; /* FF */; count++; continue;} |
|
356 |
case 'R': |
|
357 |
case 'r': |
|
358 |
{str += "\\r"; /* CR */; count++; continue;} |
|
359 |
case 'T': |
|
360 |
case 't': |
|
361 |
{str += "\\t"; /* tab */; count++; continue;} |
|
362 |
default: { |
|
363 |
if (isxdigit(c)) { |
|
364 |
/* this should be safe, since the code has passed the syntax parser!! */ |
|
365 |
char c2 = symbol->value[++i]; |
|
366 |
if (isxdigit(c2)) { |
|
367 |
str += '\\'; str += 'x'; str += c; str += c2; |
|
368 |
count++; continue; |
|
369 |
} |
|
370 |
} |
|
371 |
} |
|
372 |
/* otherwise we have an invalid string!! */ |
|
373 |
/* This should not have got through the syntax parser! */ |
|
374 |
ERROR; |
|
375 |
} /* switch() */ |
|
376 |
} /* for() */ |
|
377 |
||
378 |
str += '"'; |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
379 |
s4o.print("__STRING_LITERAL("); |
70 | 380 |
s4o.print_integer(count); |
381 |
s4o.print(","); |
|
382 |
s4o.print(str); |
|
217
f5dfadf5de54
Adding support for declare, init, get and set macros
laurent
parents:
202
diff
changeset
|
383 |
s4o.print(")"); |
70 | 384 |
return NULL; |
385 |
} |
|
386 |
||
387 |
||
388 |
/***************************/ |
|
389 |
/* B 1.2.3 - Time Literals */ |
|
390 |
/***************************/ |
|
391 |
||
392 |
/************************/ |
|
393 |
/* B 1.2.3.1 - Duration */ |
|
394 |
/************************/ |
|
395 |
/* The following output is actually the parameters to the constructor of the TIME class! */ |
|
396 |
||
397 |
/* SYM_REF0(neg_time_c) */ |
|
398 |
void *visit(neg_time_c *symbol) {s4o.print("-1"); /* negative time value */; return NULL;} |
|
399 |
||
400 |
||
401 |
/* SYM_REF2(duration_c, neg, interval) */ |
|
402 |
void *visit(duration_c *symbol) { |
|
403 |
TRACE("duration_c"); |
|
404 |
s4o.print("__time_to_timespec("); |
|
405 |
if (NULL == symbol->neg) |
|
406 |
s4o.print("1"); /* positive time value */ |
|
407 |
else |
|
408 |
symbol->neg->accept(*this); /* this will print '-1' :-) */ |
|
409 |
||
410 |
s4o.print(", "); |
|
411 |
||
412 |
symbol->interval->accept(*this); |
|
413 |
if (typeid(*symbol->interval) == typeid(hours_c)) {s4o.print(", 0");} |
|
414 |
if (typeid(*symbol->interval) == typeid(minutes_c)) {s4o.print(", 0, 0");} |
|
415 |
if (typeid(*symbol->interval) == typeid(seconds_c)) {s4o.print(", 0, 0, 0");} |
|
416 |
if (typeid(*symbol->interval) == typeid(milliseconds_c)) {s4o.print(", 0, 0, 0, 0");} |
|
417 |
s4o.print(")"); |
|
418 |
return NULL; |
|
419 |
} |
|
420 |
||
421 |
||
422 |
/* SYM_TOKEN(fixed_point_c) */ |
|
423 |
void *visit(fixed_point_c *symbol) {return print_token(symbol);} |
|
424 |
||
425 |
||
426 |
/* SYM_REF2(days_c, days, hours) */ |
|
427 |
void *visit(days_c *symbol) { |
|
428 |
TRACE("days_c"); |
|
429 |
if (NULL == symbol->hours) |
|
430 |
s4o.print("0, 0, 0, 0"); /* milliseconds, seconds, minutes, hours */ |
|
431 |
else |
|
432 |
symbol->hours->accept(*this); |
|
433 |
||
434 |
s4o.print(", "); |
|
435 |
||
436 |
symbol->days->accept(*this); |
|
437 |
return NULL; |
|
438 |
} |
|
439 |
||
440 |
||
441 |
/* SYM_REF2(hours_c, hours, minutes) */ |
|
442 |
void *visit(hours_c *symbol) { |
|
443 |
TRACE("hours_c"); |
|
444 |
if (NULL == symbol->minutes) |
|
445 |
s4o.print("0, 0, 0"); /* milliseconds, seconds, minutes */ |
|
446 |
else |
|
447 |
symbol->minutes->accept(*this); |
|
448 |
||
449 |
s4o.print(", "); |
|
450 |
||
451 |
symbol->hours->accept(*this); |
|
452 |
return NULL; |
|
453 |
} |
|
454 |
||
455 |
||
456 |
/* SYM_REF2(minutes_c, minutes, seconds) */ |
|
457 |
void *visit(minutes_c *symbol) { |
|
458 |
TRACE("minutes_c"); |
|
459 |
if (NULL == symbol->seconds) |
|
460 |
s4o.print("0, 0"); /* milliseconds, seconds */ |
|
461 |
else |
|
462 |
symbol->seconds->accept(*this); |
|
463 |
||
464 |
s4o.print(", "); |
|
465 |
||
466 |
symbol->minutes->accept(*this); |
|
467 |
return NULL; |
|
468 |
} |
|
469 |
||
470 |
||
471 |
/* SYM_REF2(seconds_c, seconds, milliseconds) */ |
|
472 |
void *visit(seconds_c *symbol) { |
|
473 |
TRACE("seconds_c"); |
|
474 |
if (NULL == symbol->milliseconds) |
|
475 |
s4o.print("0"); /* milliseconds */ |
|
476 |
else |
|
477 |
symbol->milliseconds->accept(*this); |
|
478 |
||
479 |
s4o.print(", "); |
|
480 |
||
481 |
symbol->seconds->accept(*this); |
|
482 |
return NULL; |
|
483 |
} |
|
484 |
||
485 |
||
486 |
/* SYM_REF2(milliseconds_c, milliseconds, unused) */ |
|
487 |
void *visit(milliseconds_c *symbol) { |
|
488 |
TRACE("milliseconds_c"); |
|
489 |
symbol->milliseconds->accept(*this); |
|
490 |
return NULL; |
|
491 |
} |
|
492 |
||
493 |
/************************************/ |
|
494 |
/* B 1.2.3.2 - Time of day and Date */ |
|
495 |
/************************************/ |
|
496 |
||
497 |
/* SYM_REF2(time_of_day_c, daytime, unused) */ |
|
498 |
void *visit(time_of_day_c *symbol) { |
|
499 |
TRACE("time_of_day_c"); |
|
500 |
s4o.print("__tod_to_timespec("); |
|
501 |
symbol->daytime->accept(*this); |
|
502 |
s4o.print(")"); |
|
503 |
return NULL; |
|
504 |
} |
|
505 |
||
506 |
||
507 |
/* SYM_REF4(daytime_c, day_hour, day_minute, day_second, unused) */ |
|
508 |
void *visit(daytime_c *symbol) { |
|
509 |
TRACE("daytime_c"); |
|
510 |
symbol->day_second->accept(*this); |
|
511 |
s4o.print(", "); |
|
512 |
symbol->day_minute->accept(*this); |
|
513 |
s4o.print(", "); |
|
514 |
symbol->day_hour->accept(*this); |
|
515 |
return NULL; |
|
516 |
} |
|
517 |
||
518 |
||
519 |
/* SYM_REF2(date_c, date_literal, unused) */ |
|
520 |
void *visit(date_c *symbol) { |
|
521 |
TRACE("date_c"); |
|
522 |
s4o.print("__date_to_timespec("); |
|
523 |
symbol->date_literal->accept(*this); |
|
524 |
s4o.print(")"); |
|
525 |
return NULL; |
|
526 |
} |
|
527 |
||
528 |
||
529 |
/* SYM_REF4(date_literal_c, year, month, day, unused) */ |
|
530 |
void *visit(date_literal_c *symbol) { |
|
531 |
TRACE("date_literal_c"); |
|
532 |
symbol->day->accept(*this); |
|
533 |
s4o.print(", "); |
|
534 |
symbol->month->accept(*this); |
|
535 |
s4o.print(", "); |
|
536 |
symbol->year->accept(*this); |
|
537 |
return NULL; |
|
538 |
} |
|
539 |
||
540 |
||
541 |
/* SYM_REF2(date_and_time_c, date_literal, daytime) */ |
|
542 |
void *visit(date_and_time_c *symbol) { |
|
543 |
TRACE("date_and_time_c"); |
|
544 |
s4o.print("__dt_to_timespec("); |
|
545 |
symbol->daytime->accept(*this); |
|
546 |
s4o.print(", "); |
|
547 |
symbol->date_literal->accept(*this); |
|
548 |
s4o.print(")"); |
|
549 |
return NULL; |
|
550 |
} |
|
551 |
||
552 |
||
553 |
/**********************/ |
|
554 |
/* B.1.3 - Data types */ |
|
555 |
/**********************/ |
|
556 |
/***********************************/ |
|
557 |
/* B 1.3.1 - Elementary Data Types */ |
|
558 |
/***********************************/ |
|
559 |
void *visit(time_type_name_c *symbol) {s4o.print("TIME"); return NULL;} |
|
560 |
void *visit(bool_type_name_c *symbol) {s4o.print("BOOL"); return NULL;} |
|
561 |
void *visit(sint_type_name_c *symbol) {s4o.print("SINT"); return NULL;} |
|
562 |
void *visit(int_type_name_c *symbol) {s4o.print("INT"); return NULL;} |
|
563 |
void *visit(dint_type_name_c *symbol) {s4o.print("DINT"); return NULL;} |
|
564 |
void *visit(lint_type_name_c *symbol) {s4o.print("LINT"); return NULL;} |
|
565 |
void *visit(usint_type_name_c *symbol) {s4o.print("USINT"); return NULL;} |
|
566 |
void *visit(uint_type_name_c *symbol) {s4o.print("UINT"); return NULL;} |
|
567 |
void *visit(udint_type_name_c *symbol) {s4o.print("UDINT"); return NULL;} |
|
568 |
void *visit(ulint_type_name_c *symbol) {s4o.print("ULINT"); return NULL;} |
|
569 |
void *visit(real_type_name_c *symbol) {s4o.print("REAL"); return NULL;} |
|
570 |
void *visit(lreal_type_name_c *symbol) {s4o.print("LREAL"); return NULL;} |
|
571 |
void *visit(date_type_name_c *symbol) {s4o.print("DATE"); return NULL;} |
|
572 |
void *visit(tod_type_name_c *symbol) {s4o.print("TOD"); return NULL;} |
|
573 |
void *visit(dt_type_name_c *symbol) {s4o.print("DT"); return NULL;} |
|
574 |
void *visit(byte_type_name_c *symbol) {s4o.print("BYTE"); return NULL;} |
|
575 |
void *visit(word_type_name_c *symbol) {s4o.print("WORD"); return NULL;} |
|
576 |
void *visit(lword_type_name_c *symbol) {s4o.print("LWORD"); return NULL;} |
|
577 |
void *visit(dword_type_name_c *symbol) {s4o.print("DWORD"); return NULL;} |
|
578 |
void *visit(string_type_name_c *symbol) {s4o.print("STRING"); return NULL;} |
|
579 |
void *visit(wstring_type_name_c *symbol) {s4o.print("WSTRING"); return NULL;} |
|
177
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
580 |
/******************************************************/ |
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
581 |
/* Extensions to the base standard as defined in */ |
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
582 |
/* "Safety Software Technical Specification, */ |
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
583 |
/* Part 1: Concepts and Function Blocks, */ |
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
584 |
/* Version 1.0 – Official Release" */ |
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
585 |
/* by PLCopen - Technical Committee 5 - 2006-01-31 */ |
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
586 |
/******************************************************/ |
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
587 |
void *visit(safebool_type_name_c *symbol) {s4o.print("SAFEBOOL"); return NULL;} |
70 | 588 |
|
589 |
/********************************/ |
|
590 |
/* B.1.3.2 - Generic data types */ |
|
591 |
/********************************/ |
|
592 |
/* originally empty... */ |
|
593 |
||
594 |
/********************************/ |
|
595 |
/* B 1.3.3 - Derived data types */ |
|
596 |
/********************************/ |
|
597 |
/* leave for derived classes... */ |
|
598 |
||
599 |
/*********************/ |
|
600 |
/* B 1.4 - Variables */ |
|
601 |
/*********************/ |
|
602 |
void *visit(symbolic_variable_c *symbol) { |
|
603 |
TRACE("symbolic_variable_c"); |
|
604 |
this->print_variable_prefix(); |
|
605 |
symbol->var_name->accept(*this); |
|
606 |
return NULL; |
|
607 |
} |
|
608 |
||
609 |
/********************************************/ |
|
610 |
/* B.1.4.1 Directly Represented Variables */ |
|
611 |
/********************************************/ |
|
612 |
void *visit(direct_variable_c *symbol) { |
|
613 |
TRACE("direct_variable_c"); |
|
614 |
/* Do not use print_token() as it will change everything into uppercase */ |
|
615 |
return s4o.printlocation(symbol->value); |
|
616 |
} |
|
617 |
||
618 |
||
619 |
||
620 |
/*************************************/ |
|
621 |
/* B.1.4.2 Multi-element Variables */ |
|
622 |
/*************************************/ |
|
623 |
#if 0 |
|
624 |
/* subscripted_variable '[' subscript_list ']' */ |
|
625 |
SYM_REF2(array_variable_c, subscripted_variable, subscript_list) |
|
626 |
||
627 |
#endif |
|
628 |
||
629 |
/* record_variable '.' field_selector */ |
|
630 |
/* WARNING: input and/or output variables of function blocks |
|
631 |
* may be accessed as fields of a structured variable! |
|
632 |
* Code handling a structured_variable_c must take |
|
633 |
* this into account! |
|
634 |
*/ |
|
635 |
// SYM_REF2(structured_variable_c, record_variable, field_selector) |
|
636 |
void *visit(structured_variable_c *symbol) { |
|
637 |
TRACE("structured_variable_c"); |
|
638 |
||
639 |
symbol->record_variable->accept(*this); |
|
640 |
s4o.print("."); |
|
641 |
symbol->field_selector->accept(*this); |
|
642 |
return NULL; |
|
643 |
} |
|
644 |
||
645 |
/******************************************/ |
|
646 |
/* B 1.4.3 - Declaration & Initialisation */ |
|
647 |
/******************************************/ |
|
648 |
/* leave for derived classes... */ |
|
649 |
||
650 |
/**************************************/ |
|
651 |
/* B.1.5 - Program organization units */ |
|
652 |
/**************************************/ |
|
653 |
/***********************/ |
|
654 |
/* B 1.5.1 - Functions */ |
|
655 |
/***********************/ |
|
656 |
/* leave for derived classes... */ |
|
657 |
||
658 |
/*****************************/ |
|
659 |
/* B 1.5.2 - Function Blocks */ |
|
660 |
/*****************************/ |
|
661 |
/* leave for derived classes... */ |
|
662 |
||
663 |
/**********************/ |
|
664 |
/* B 1.5.3 - Programs */ |
|
665 |
/**********************/ |
|
666 |
/* leave for derived classes... */ |
|
667 |
||
668 |
/*********************************************/ |
|
669 |
/* B.1.6 Sequential function chart elements */ |
|
670 |
/*********************************************/ |
|
671 |
||
672 |
/********************************/ |
|
673 |
/* B 1.7 Configuration elements */ |
|
674 |
/********************************/ |
|
675 |
/* leave for derived classes... */ |
|
676 |
||
677 |
/****************************************/ |
|
678 |
/* B.2 - Language IL (Instruction List) */ |
|
679 |
/****************************************/ |
|
680 |
/***********************************/ |
|
681 |
/* B 2.1 Instructions and Operands */ |
|
682 |
/***********************************/ |
|
683 |
/* leave for derived classes... */ |
|
684 |
||
685 |
/*******************/ |
|
686 |
/* B 2.2 Operators */ |
|
687 |
/*******************/ |
|
688 |
/* leave for derived classes... */ |
|
689 |
||
690 |
||
691 |
/***************************************/ |
|
692 |
/* B.3 - Language ST (Structured Text) */ |
|
693 |
/***************************************/ |
|
694 |
/***********************/ |
|
695 |
/* B 3.1 - Expressions */ |
|
696 |
/***********************/ |
|
697 |
/* leave for derived classes... */ |
|
698 |
||
699 |
/********************/ |
|
700 |
/* B 3.2 Statements */ |
|
701 |
/********************/ |
|
702 |
/* leave for derived classes... */ |
|
703 |
||
704 |
/*********************************/ |
|
705 |
/* B 3.2.1 Assignment Statements */ |
|
706 |
/*********************************/ |
|
707 |
/* leave for derived classes... */ |
|
708 |
||
709 |
/*****************************************/ |
|
710 |
/* B 3.2.2 Subprogram Control Statements */ |
|
711 |
/*****************************************/ |
|
712 |
/* leave for derived classes... */ |
|
713 |
||
714 |
/********************************/ |
|
715 |
/* B 3.2.3 Selection Statements */ |
|
716 |
/********************************/ |
|
717 |
/* leave for derived classes... */ |
|
718 |
||
719 |
/********************************/ |
|
720 |
/* B 3.2.4 Iteration Statements */ |
|
721 |
/********************************/ |
|
722 |
/* leave for derived classes... */ |
|
723 |
||
177
697562a5da7c
Adding support for SAFEBOOL. Some code generation yet to do...
mario
parents:
160
diff
changeset
|
724 |
|
70 | 725 |
}; /* class generate_c_basic_c */ |
726 |
||
727 |
||
728 |
||
729 |
||
730 |
||
731 |
||
732 |
||
733 |
||
734 |
||
735 |
||
736 |
||
737 |
||
738 |
||
739 |