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Commit | Line | Data |
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56099f08 | 1 | // parse tree functions |
482fe2af | 2 | // Copyright (C) 2005-2009 Red Hat Inc. |
69c68955 FCE |
3 | // |
4 | // This file is part of systemtap, and is free software. You can | |
5 | // redistribute it and/or modify it under the terms of the GNU General | |
6 | // Public License (GPL); either version 2, or (at your option) any | |
7 | // later version. | |
2f1a1aea | 8 | |
2b066ec1 | 9 | #include "config.h" |
2f1a1aea FCE |
10 | #include "staptree.h" |
11 | #include "parse.h" | |
72dbc915 FCE |
12 | #include "util.h" |
13 | ||
2f1a1aea | 14 | #include <iostream> |
56099f08 | 15 | #include <typeinfo> |
d02548c0 | 16 | #include <sstream> |
56099f08 | 17 | #include <cassert> |
b2199bb3 | 18 | #include <cstring> |
c3a3c0c9 | 19 | #include <vector> |
66e00001 | 20 | #include <algorithm> |
edc22ba9 | 21 | #include <cstring> |
2f1a1aea | 22 | |
2b066ec1 FCE |
23 | using namespace std; |
24 | ||
2f1a1aea | 25 | |
c1d5f3f6 | 26 | |
56099f08 FCE |
27 | expression::expression (): |
28 | type (pe_unknown), tok (0) | |
29 | { | |
dff50e09 | 30 | } |
56099f08 FCE |
31 | |
32 | ||
33 | expression::~expression () | |
34 | { | |
35 | } | |
36 | ||
37 | ||
38 | statement::statement (): | |
39 | tok (0) | |
40 | { | |
dff50e09 | 41 | } |
56099f08 FCE |
42 | |
43 | ||
44 | statement::~statement () | |
45 | { | |
46 | } | |
47 | ||
48 | ||
49 | symbol::symbol (): | |
50 | referent (0) | |
51 | { | |
52 | } | |
53 | ||
54 | ||
55 | arrayindex::arrayindex (): | |
d02548c0 | 56 | base (0) |
56099f08 FCE |
57 | { |
58 | } | |
59 | ||
60 | ||
61 | functioncall::functioncall (): | |
62 | referent (0) | |
63 | { | |
64 | } | |
65 | ||
66 | ||
67 | symboldecl::symboldecl (): | |
68 | tok (0), | |
69 | type (pe_unknown) | |
70 | { | |
dff50e09 | 71 | } |
56099f08 FCE |
72 | |
73 | ||
74 | symboldecl::~symboldecl () | |
75 | { | |
76 | } | |
77 | ||
a229fcd7 GH |
78 | probe_point::probe_point (std::vector<component*> const & comps, |
79 | const token * t): | |
cbbe8080 | 80 | components(comps), tok(t), optional (false), sufficient (false), |
80342244 | 81 | condition (0) |
a229fcd7 GH |
82 | { |
83 | } | |
56099f08 | 84 | |
1939ea32 FCE |
85 | // NB: shallow-copy of compoonents & condition! |
86 | probe_point::probe_point (const probe_point& pp): | |
87 | components(pp.components), tok(pp.tok), optional (pp.optional), sufficient (pp.sufficient), | |
88 | condition (pp.condition) | |
89 | { | |
90 | } | |
91 | ||
92 | ||
9c0c0e46 | 93 | probe_point::probe_point (): |
80342244 | 94 | tok (0), optional (false), sufficient (false), condition (0) |
82919855 FCE |
95 | { |
96 | } | |
97 | ||
98 | ||
c1d5f3f6 | 99 | unsigned probe::last_probeidx = 0; |
82919855 | 100 | probe::probe (): |
5d23847d | 101 | body (0), tok (0) |
9c0c0e46 | 102 | { |
c1d5f3f6 | 103 | this->name = string ("probe_") + lex_cast<string>(last_probeidx ++); |
9c0c0e46 FCE |
104 | } |
105 | ||
106 | ||
107 | probe_point::component::component (): | |
108 | arg (0) | |
109 | { | |
110 | } | |
111 | ||
112 | ||
dff50e09 FCE |
113 | probe_point::component::component (std::string const & f, literal * a): |
114 | functor(f), arg(a) | |
a229fcd7 GH |
115 | { |
116 | } | |
117 | ||
118 | ||
2b066ec1 | 119 | vardecl::vardecl (): |
ef474d24 | 120 | arity (-1), maxsize(0), init(NULL) |
56099f08 FCE |
121 | { |
122 | } | |
123 | ||
124 | ||
2b066ec1 FCE |
125 | void |
126 | vardecl::set_arity (int a) | |
56099f08 | 127 | { |
d98d459c GH |
128 | if (a < 0) |
129 | return; | |
8846477c | 130 | |
ef474d24 | 131 | if ((arity != a && arity >= 0) || (a == 0 && maxsize > 0)) |
8846477c FCE |
132 | throw semantic_error ("inconsistent arity", tok); |
133 | ||
134 | if (arity != a) | |
135 | { | |
136 | arity = a; | |
137 | index_types.resize (arity); | |
138 | for (int i=0; i<arity; i++) | |
139 | index_types[i] = pe_unknown; | |
140 | } | |
56099f08 FCE |
141 | } |
142 | ||
dff50e09 | 143 | bool |
313b2f74 GH |
144 | vardecl::compatible_arity (int a) |
145 | { | |
ef474d24 JS |
146 | if (a == 0 && maxsize > 0) |
147 | return false; | |
d98d459c | 148 | if (arity == -1 || a == -1) |
313b2f74 GH |
149 | return true; |
150 | return arity == a; | |
151 | } | |
152 | ||
56099f08 FCE |
153 | |
154 | functiondecl::functiondecl (): | |
155 | body (0) | |
156 | { | |
157 | } | |
158 | ||
159 | ||
3a20432b | 160 | literal_number::literal_number (int64_t v) |
56099f08 FCE |
161 | { |
162 | value = v; | |
163 | type = pe_long; | |
164 | } | |
165 | ||
2f1a1aea | 166 | |
56099f08 FCE |
167 | literal_string::literal_string (const string& v) |
168 | { | |
169 | value = v; | |
170 | type = pe_string; | |
171 | } | |
172 | ||
173 | ||
174 | ostream& | |
175 | operator << (ostream& o, const exp_type& e) | |
176 | { | |
177 | switch (e) | |
178 | { | |
179 | case pe_unknown: o << "unknown"; break; | |
180 | case pe_long: o << "long"; break; | |
181 | case pe_string: o << "string"; break; | |
182 | case pe_stats: o << "stats"; break; | |
183 | default: o << "???"; break; | |
184 | } | |
185 | return o; | |
186 | } | |
187 | ||
188 | ||
189 | // ------------------------------------------------------------------------ | |
190 | // parse tree printing | |
191 | ||
cc9ee605 | 192 | ostream& operator << (ostream& o, const expression& k) |
56099f08 FCE |
193 | { |
194 | k.print (o); | |
195 | return o; | |
196 | } | |
197 | ||
198 | ||
cc9ee605 | 199 | void literal_string::print (ostream& o) const |
56099f08 | 200 | { |
cc9ee605 FCE |
201 | o << '"'; |
202 | for (unsigned i=0; i<value.size(); i++) | |
203 | if (value[i] == '"') // or other escapeworthy characters? | |
204 | o << '\\' << '"'; | |
205 | else | |
206 | o << value[i]; | |
207 | o << '"'; | |
56099f08 FCE |
208 | } |
209 | ||
f3c26ea5 | 210 | |
cc9ee605 | 211 | void literal_number::print (ostream& o) const |
56099f08 FCE |
212 | { |
213 | o << value; | |
214 | } | |
215 | ||
216 | ||
cc9ee605 | 217 | void binary_expression::print (ostream& o) const |
56099f08 | 218 | { |
dff50e09 FCE |
219 | o << "(" << *left << ") " |
220 | << op | |
a9c62ac9 | 221 | << " (" << *right << ")"; |
56099f08 | 222 | } |
2f1a1aea FCE |
223 | |
224 | ||
cc9ee605 | 225 | void unary_expression::print (ostream& o) const |
2f1a1aea | 226 | { |
dff50e09 | 227 | o << op << '(' << *operand << ")"; |
56099f08 FCE |
228 | } |
229 | ||
cc9ee605 | 230 | void array_in::print (ostream& o) const |
69c68955 FCE |
231 | { |
232 | o << "["; | |
233 | for (unsigned i=0; i<operand->indexes.size(); i++) | |
234 | { | |
235 | if (i > 0) o << ", "; | |
236 | operand->indexes[i]->print (o); | |
237 | } | |
a9c62ac9 FCE |
238 | o << "] in "; |
239 | operand->base->print_indexable (o); | |
69c68955 | 240 | } |
56099f08 | 241 | |
cc9ee605 | 242 | void post_crement::print (ostream& o) const |
56099f08 | 243 | { |
dff50e09 | 244 | o << '(' << *operand << ")" << op; |
56099f08 FCE |
245 | } |
246 | ||
247 | ||
cc9ee605 | 248 | void ternary_expression::print (ostream& o) const |
56099f08 | 249 | { |
ae56fddd FCE |
250 | o << "(" << *cond << ")?(" |
251 | << *truevalue << "):(" | |
dff50e09 | 252 | << *falsevalue << ")"; |
56099f08 FCE |
253 | } |
254 | ||
255 | ||
cc9ee605 | 256 | void symbol::print (ostream& o) const |
56099f08 FCE |
257 | { |
258 | o << name; | |
259 | } | |
260 | ||
261 | ||
c67847a0 JS |
262 | void target_symbol::component::print (ostream& o) const |
263 | { | |
264 | switch (type) | |
265 | { | |
266 | case comp_struct_member: | |
267 | o << "->" << member; | |
268 | break; | |
269 | case comp_literal_array_index: | |
270 | o << '[' << num_index << ']'; | |
271 | break; | |
272 | } | |
273 | } | |
274 | ||
275 | ||
276 | std::ostream& operator << (std::ostream& o, const target_symbol::component& c) | |
277 | { | |
278 | c.print (o); | |
279 | return o; | |
280 | } | |
281 | ||
282 | ||
8eb285ac | 283 | void target_symbol::print (ostream& o) const |
d7f3e0c5 | 284 | { |
03c75a4a JS |
285 | if (addressof) |
286 | o << "&"; | |
d7f3e0c5 GH |
287 | o << base_name; |
288 | for (unsigned i = 0; i < components.size(); ++i) | |
c67847a0 | 289 | o << components[i]; |
d7f3e0c5 GH |
290 | } |
291 | ||
292 | ||
8eb285ac | 293 | void cast_op::print (ostream& o) const |
9b5af295 | 294 | { |
03c75a4a JS |
295 | if (addressof) |
296 | o << "&"; | |
9b5af295 JS |
297 | o << base_name << '(' << *operand; |
298 | o << ", " << lex_cast_qstring (type); | |
299 | if (module.length() > 0) | |
300 | o << ", " << lex_cast_qstring (module); | |
301 | o << ')'; | |
302 | for (unsigned i = 0; i < components.size(); ++i) | |
c67847a0 | 303 | o << components[i]; |
9b5af295 JS |
304 | } |
305 | ||
306 | ||
cc9ee605 | 307 | void vardecl::print (ostream& o) const |
56099f08 FCE |
308 | { |
309 | o << name; | |
ef474d24 JS |
310 | if (maxsize > 0) |
311 | o << "[" << maxsize << "]"; | |
bed7c0af | 312 | if (arity > 0 || index_types.size() > 0) |
56099f08 | 313 | o << "[...]"; |
9ba8c134 JS |
314 | if (init) |
315 | { | |
316 | o << " = "; | |
317 | init->print(o); | |
318 | } | |
56099f08 FCE |
319 | } |
320 | ||
2f1a1aea | 321 | |
cc9ee605 | 322 | void vardecl::printsig (ostream& o) const |
56099f08 | 323 | { |
ef474d24 JS |
324 | o << name; |
325 | if (maxsize > 0) | |
326 | o << "[" << maxsize << "]"; | |
327 | o << ":" << type; | |
56099f08 | 328 | if (index_types.size() > 0) |
2f1a1aea | 329 | { |
56099f08 FCE |
330 | o << " ["; |
331 | for (unsigned i=0; i<index_types.size(); i++) | |
332 | o << (i>0 ? ", " : "") << index_types[i]; | |
333 | o << "]"; | |
334 | } | |
335 | } | |
336 | ||
337 | ||
cc9ee605 | 338 | void functiondecl::print (ostream& o) const |
56099f08 FCE |
339 | { |
340 | o << "function " << name << " ("; | |
341 | for (unsigned i=0; i<formal_args.size(); i++) | |
342 | o << (i>0 ? ", " : "") << *formal_args[i]; | |
343 | o << ")" << endl; | |
344 | body->print(o); | |
345 | } | |
346 | ||
347 | ||
cc9ee605 | 348 | void functiondecl::printsig (ostream& o) const |
56099f08 FCE |
349 | { |
350 | o << name << ":" << type << " ("; | |
351 | for (unsigned i=0; i<formal_args.size(); i++) | |
352 | o << (i>0 ? ", " : "") | |
353 | << *formal_args[i] | |
354 | << ":" | |
355 | << formal_args[i]->type; | |
356 | o << ")"; | |
357 | } | |
358 | ||
359 | ||
cc9ee605 | 360 | void arrayindex::print (ostream& o) const |
56099f08 | 361 | { |
a9c62ac9 FCE |
362 | base->print_indexable (o); |
363 | o << "["; | |
56099f08 FCE |
364 | for (unsigned i=0; i<indexes.size(); i++) |
365 | o << (i>0 ? ", " : "") << *indexes[i]; | |
366 | o << "]"; | |
367 | } | |
368 | ||
369 | ||
cc9ee605 | 370 | void functioncall::print (ostream& o) const |
56099f08 FCE |
371 | { |
372 | o << function << "("; | |
373 | for (unsigned i=0; i<args.size(); i++) | |
374 | o << (i>0 ? ", " : "") << *args[i]; | |
375 | o << ")"; | |
dff50e09 | 376 | } |
56099f08 FCE |
377 | |
378 | ||
3cb17058 JS |
379 | bool |
380 | print_format::parse_print(const std::string &name, | |
32784362 | 381 | bool &stream, bool &format, bool &delim, bool &newline, bool &_char) |
3cb17058 JS |
382 | { |
383 | const char *n = name.c_str(); | |
384 | ||
385 | stream = true; | |
32784362 MH |
386 | format = delim = newline = _char = false; |
387 | ||
388 | if (strcmp(n, "print_char") == 0) | |
389 | { | |
390 | _char = true; | |
391 | return true; | |
392 | } | |
3cb17058 JS |
393 | |
394 | if (*n == 's') | |
395 | { | |
396 | stream = false; | |
397 | ++n; | |
398 | } | |
399 | ||
400 | if (0 != strncmp(n, "print", 5)) | |
401 | return false; | |
402 | n += 5; | |
403 | ||
404 | if (*n == 'f') | |
405 | { | |
406 | format = true; | |
407 | ++n; | |
408 | } | |
409 | else | |
410 | { | |
411 | if (*n == 'd') | |
412 | { | |
413 | delim = true; | |
414 | ++n; | |
415 | } | |
416 | ||
417 | if (*n == 'l' && *(n+1) == 'n') | |
418 | { | |
419 | newline = true; | |
420 | n += 2; | |
421 | } | |
422 | } | |
423 | ||
424 | return (*n == '\0'); | |
425 | } | |
426 | ||
427 | ||
dff50e09 | 428 | string |
d02548c0 GH |
429 | print_format::components_to_string(vector<format_component> const & components) |
430 | { | |
431 | ostringstream oss; | |
432 | ||
433 | for (vector<format_component>::const_iterator i = components.begin(); | |
434 | i != components.end(); ++i) | |
435 | { | |
436 | ||
437 | assert (i->type != conv_unspecified); | |
438 | ||
439 | if (i->type == conv_literal) | |
440 | { | |
441 | assert(!i->literal_string.empty()); | |
442 | for (string::const_iterator j = i->literal_string.begin(); | |
443 | j != i->literal_string.end(); ++j) | |
444 | { | |
c4bb5be2 | 445 | // See also: c_unparser::visit_literal_string and lex_cast_qstring |
d02548c0 GH |
446 | if (*j == '%') |
447 | oss << '%'; | |
c4bb5be2 FCE |
448 | else if(*j == '"') |
449 | oss << '\\'; | |
d02548c0 GH |
450 | oss << *j; |
451 | } | |
452 | } | |
453 | else | |
454 | { | |
455 | oss << '%'; | |
456 | ||
457 | if (i->flags & static_cast<unsigned long>(fmt_flag_zeropad)) | |
458 | oss << '0'; | |
459 | ||
460 | if (i->flags & static_cast<unsigned long>(fmt_flag_plus)) | |
461 | oss << '+'; | |
462 | ||
463 | if (i->flags & static_cast<unsigned long>(fmt_flag_space)) | |
464 | oss << ' '; | |
465 | ||
466 | if (i->flags & static_cast<unsigned long>(fmt_flag_left)) | |
467 | oss << '-'; | |
468 | ||
469 | if (i->flags & static_cast<unsigned long>(fmt_flag_special)) | |
470 | oss << '#'; | |
471 | ||
34201621 DB |
472 | if (i->widthtype == width_dynamic) |
473 | oss << '*'; | |
474 | else if (i->widthtype != width_unspecified && i->width > 0) | |
d02548c0 GH |
475 | oss << i->width; |
476 | ||
34201621 DB |
477 | if (i->prectype == prec_dynamic) |
478 | oss << ".*"; | |
479 | else if (i->prectype != prec_unspecified && i->precision > 0) | |
d02548c0 GH |
480 | oss << '.' << i->precision; |
481 | ||
dff50e09 | 482 | switch (i->type) |
dc0b623a MH |
483 | { |
484 | case conv_binary: | |
485 | oss << "b"; | |
486 | break; | |
487 | ||
fecccf83 EB |
488 | case conv_char: |
489 | oss << "llc"; | |
490 | break; | |
491 | ||
d02548c0 GH |
492 | case conv_signed_decimal: |
493 | oss << "lld"; | |
494 | break; | |
495 | ||
496 | case conv_unsigned_decimal: | |
497 | oss << "llu"; | |
498 | break; | |
499 | ||
500 | case conv_unsigned_octal: | |
501 | oss << "llo"; | |
502 | break; | |
503 | ||
58cf0567 MH |
504 | case conv_unsigned_ptr: |
505 | oss << "p"; | |
506 | break; | |
507 | ||
d02548c0 GH |
508 | case conv_unsigned_uppercase_hex: |
509 | oss << "llX"; | |
510 | break; | |
511 | ||
512 | case conv_unsigned_lowercase_hex: | |
513 | oss << "llx"; | |
514 | break; | |
515 | ||
516 | case conv_string: | |
517 | oss << 's'; | |
518 | break; | |
dff50e09 | 519 | |
34201621 DB |
520 | case conv_memory: |
521 | oss << 'm'; | |
522 | break; | |
dff50e09 | 523 | |
30c94a80 EB |
524 | case conv_memory_hex: |
525 | oss << 'M'; | |
526 | break; | |
527 | ||
d02548c0 GH |
528 | default: |
529 | break; | |
530 | } | |
531 | } | |
532 | } | |
533 | return oss.str (); | |
534 | } | |
dff50e09 FCE |
535 | |
536 | vector<print_format::format_component> | |
d02548c0 GH |
537 | print_format::string_to_components(string const & str) |
538 | { | |
539 | format_component curr; | |
540 | vector<format_component> res; | |
541 | ||
d02548c0 GH |
542 | curr.clear(); |
543 | ||
544 | string::const_iterator i = str.begin(); | |
dff50e09 | 545 | |
d02548c0 GH |
546 | while (i != str.end()) |
547 | { | |
07c17d67 | 548 | if (*i != '%') |
d02548c0 | 549 | { |
07c17d67 GH |
550 | assert (curr.type == conv_unspecified || curr.type == conv_literal); |
551 | curr.type = conv_literal; | |
dc0b623a | 552 | curr.literal_string += *i; |
d02548c0 | 553 | ++i; |
07c17d67 GH |
554 | continue; |
555 | } | |
556 | else if (i+1 == str.end() || *(i+1) == '%') | |
557 | { | |
558 | assert(*i == '%'); | |
559 | // *i == '%' and *(i+1) == '%'; append only one '%' to the literal string | |
560 | assert (curr.type == conv_unspecified || curr.type == conv_literal); | |
561 | curr.type = conv_literal; | |
562 | curr.literal_string += '%'; | |
2a99f48f | 563 | i += 2; |
07c17d67 GH |
564 | continue; |
565 | } | |
dff50e09 | 566 | else |
07c17d67 GH |
567 | { |
568 | assert(*i == '%'); | |
569 | if (curr.type != conv_unspecified) | |
d02548c0 | 570 | { |
07c17d67 GH |
571 | // Flush any component we were previously accumulating |
572 | assert (curr.type == conv_literal); | |
573 | res.push_back(curr); | |
574 | curr.clear(); | |
575 | } | |
576 | } | |
577 | ++i; | |
dff50e09 | 578 | |
07c17d67 GH |
579 | if (i == str.end()) |
580 | break; | |
d02548c0 | 581 | |
dff50e09 | 582 | // Now we are definitely parsing a conversion. |
d898100a | 583 | // Begin by parsing flags (which are optional). |
d02548c0 | 584 | |
07c17d67 GH |
585 | switch (*i) |
586 | { | |
587 | case '0': | |
588 | curr.flags |= static_cast<unsigned long>(fmt_flag_zeropad); | |
589 | ++i; | |
d02548c0 | 590 | break; |
dff50e09 | 591 | |
07c17d67 GH |
592 | case '+': |
593 | curr.flags |= static_cast<unsigned long>(fmt_flag_plus); | |
594 | ++i; | |
d02548c0 | 595 | break; |
dff50e09 | 596 | |
07c17d67 GH |
597 | case '-': |
598 | curr.flags |= static_cast<unsigned long>(fmt_flag_left); | |
599 | ++i; | |
d02548c0 | 600 | break; |
dff50e09 | 601 | |
07c17d67 GH |
602 | case ' ': |
603 | curr.flags |= static_cast<unsigned long>(fmt_flag_space); | |
604 | ++i; | |
605 | break; | |
dff50e09 | 606 | |
07c17d67 GH |
607 | case '#': |
608 | curr.flags |= static_cast<unsigned long>(fmt_flag_special); | |
609 | ++i; | |
610 | break; | |
dc0b623a | 611 | |
07c17d67 GH |
612 | default: |
613 | break; | |
614 | } | |
d02548c0 | 615 | |
34201621 DB |
616 | if (i == str.end()) |
617 | break; | |
618 | ||
07c17d67 | 619 | // Parse optional width |
34201621 | 620 | if (*i == '*') |
07c17d67 | 621 | { |
34201621 | 622 | curr.widthtype = width_dynamic; |
07c17d67 GH |
623 | ++i; |
624 | } | |
34201621 DB |
625 | else if (isdigit(*i)) |
626 | { | |
627 | curr.widthtype = width_static; | |
628 | curr.width = 0; | |
629 | do | |
630 | { | |
631 | curr.width *= 10; | |
632 | curr.width += (*i - '0'); | |
633 | ++i; | |
634 | } | |
635 | while (i != str.end() && isdigit(*i)); | |
636 | } | |
d02548c0 | 637 | |
07c17d67 GH |
638 | if (i == str.end()) |
639 | break; | |
d02548c0 | 640 | |
07c17d67 GH |
641 | // Parse optional precision |
642 | if (*i == '.') | |
643 | { | |
644 | ++i; | |
645 | if (i == str.end()) | |
646 | break; | |
34201621 | 647 | if (*i == '*') |
07c17d67 | 648 | { |
34201621 | 649 | curr.prectype = prec_dynamic; |
d02548c0 | 650 | ++i; |
07c17d67 | 651 | } |
34201621 DB |
652 | else if (isdigit(*i)) |
653 | { | |
654 | curr.prectype = prec_static; | |
655 | curr.precision = 0; | |
656 | do | |
657 | { | |
658 | curr.precision *= 10; | |
659 | curr.precision += (*i - '0'); | |
660 | ++i; | |
661 | } | |
662 | while (i != str.end() && isdigit(*i)); | |
663 | } | |
07c17d67 | 664 | } |
d02548c0 | 665 | |
07c17d67 GH |
666 | if (i == str.end()) |
667 | break; | |
d02548c0 | 668 | |
fecccf83 | 669 | // Parse the actual conversion specifier (bcsmdioupxXn) |
07c17d67 GH |
670 | switch (*i) |
671 | { | |
672 | // Valid conversion types | |
dc0b623a MH |
673 | case 'b': |
674 | curr.type = conv_binary; | |
675 | break; | |
dff50e09 | 676 | |
fecccf83 EB |
677 | case 'c': |
678 | curr.type = conv_char; | |
679 | break; | |
680 | ||
07c17d67 GH |
681 | case 's': |
682 | curr.type = conv_string; | |
683 | break; | |
dff50e09 | 684 | |
34201621 DB |
685 | case 'm': |
686 | curr.type = conv_memory; | |
687 | break; | |
dff50e09 | 688 | |
30c94a80 EB |
689 | case 'M': |
690 | curr.type = conv_memory_hex; | |
691 | break; | |
692 | ||
07c17d67 GH |
693 | case 'd': |
694 | case 'i': | |
695 | curr.type = conv_signed_decimal; | |
696 | break; | |
dff50e09 | 697 | |
07c17d67 GH |
698 | case 'o': |
699 | curr.type = conv_unsigned_octal; | |
700 | break; | |
dff50e09 | 701 | |
07c17d67 GH |
702 | case 'u': |
703 | curr.type = conv_unsigned_decimal; | |
704 | break; | |
dff50e09 | 705 | |
58cf0567 MH |
706 | case 'p': |
707 | curr.type = conv_unsigned_ptr; | |
708 | break; | |
709 | ||
07c17d67 GH |
710 | case 'X': |
711 | curr.type = conv_unsigned_uppercase_hex; | |
712 | break; | |
dff50e09 | 713 | |
07c17d67 GH |
714 | case 'x': |
715 | curr.type = conv_unsigned_lowercase_hex; | |
716 | break; | |
dc0b623a | 717 | |
07c17d67 | 718 | default: |
d02548c0 GH |
719 | break; |
720 | } | |
dff50e09 | 721 | |
07c17d67 | 722 | if (curr.type == conv_unspecified) |
a9c62ac9 | 723 | throw parse_error("invalid or missing conversion specifier"); |
dff50e09 | 724 | |
07c17d67 | 725 | ++i; |
dc0b623a | 726 | res.push_back(curr); |
dff50e09 | 727 | curr.clear(); |
d02548c0 GH |
728 | } |
729 | ||
07c17d67 GH |
730 | // If there's a remaining partly-composed conversion, fail. |
731 | if (!curr.is_empty()) | |
732 | { | |
733 | if (curr.type == conv_literal) | |
dff50e09 | 734 | res.push_back(curr); |
07c17d67 | 735 | else |
a9c62ac9 | 736 | throw parse_error("trailing incomplete print format conversion"); |
07c17d67 | 737 | } |
d02548c0 GH |
738 | |
739 | return res; | |
740 | } | |
741 | ||
742 | ||
743 | void print_format::print (ostream& o) const | |
744 | { | |
3cb17058 | 745 | o << tok->content << "("; |
d02548c0 | 746 | if (print_with_format) |
3cb17058 JS |
747 | o << lex_cast_qstring (raw_components); |
748 | if (print_with_delim) | |
749 | o << lex_cast_qstring (delimiter.literal_string); | |
a9c62ac9 FCE |
750 | if (hist) |
751 | hist->print(o); | |
d02548c0 GH |
752 | for (vector<expression*>::const_iterator i = args.begin(); |
753 | i != args.end(); ++i) | |
754 | { | |
3cb17058 | 755 | if (i != args.begin() || print_with_format || print_with_delim) |
d02548c0 GH |
756 | o << ", "; |
757 | (*i)->print(o); | |
758 | } | |
759 | o << ")"; | |
760 | } | |
761 | ||
762 | void stat_op::print (ostream& o) const | |
763 | { | |
764 | o << '@'; | |
765 | switch (ctype) | |
766 | { | |
767 | case sc_average: | |
768 | o << "avg("; | |
769 | break; | |
770 | ||
771 | case sc_count: | |
772 | o << "count("; | |
773 | break; | |
774 | ||
775 | case sc_sum: | |
776 | o << "sum("; | |
777 | break; | |
778 | ||
779 | case sc_min: | |
780 | o << "min("; | |
781 | break; | |
dff50e09 | 782 | |
d02548c0 GH |
783 | case sc_max: |
784 | o << "max("; | |
785 | break; | |
786 | } | |
787 | stat->print(o); | |
788 | o << ")"; | |
789 | } | |
790 | ||
dff50e09 | 791 | void |
d02548c0 GH |
792 | hist_op::print (ostream& o) const |
793 | { | |
794 | o << '@'; | |
795 | switch (htype) | |
796 | { | |
797 | case hist_linear: | |
798 | assert(params.size() == 3); | |
799 | o << "hist_linear("; | |
800 | stat->print(o); | |
801 | for (size_t i = 0; i < params.size(); ++i) | |
802 | { | |
803 | o << ", " << params[i]; | |
804 | } | |
805 | o << ")"; | |
806 | break; | |
807 | ||
808 | case hist_log: | |
e38723d2 | 809 | assert(params.size() == 0); |
d02548c0 GH |
810 | o << "hist_log("; |
811 | stat->print(o); | |
d02548c0 GH |
812 | o << ")"; |
813 | break; | |
814 | } | |
815 | } | |
816 | ||
cc9ee605 | 817 | ostream& operator << (ostream& o, const statement& k) |
56099f08 FCE |
818 | { |
819 | k.print (o); | |
820 | return o; | |
821 | } | |
822 | ||
823 | ||
cc9ee605 | 824 | void embeddedcode::print (ostream &o) const |
54dfabe9 FCE |
825 | { |
826 | o << "%{"; | |
827 | o << code; | |
828 | o << "%}"; | |
829 | } | |
830 | ||
cc9ee605 | 831 | void block::print (ostream& o) const |
56099f08 FCE |
832 | { |
833 | o << "{" << endl; | |
834 | for (unsigned i=0; i<statements.size(); i++) | |
69c68955 | 835 | o << *statements [i] << endl; |
bb2e3076 | 836 | o << "}"; |
56099f08 FCE |
837 | } |
838 | ||
ba6f838d FCE |
839 | block::block (statement* car, statement* cdr) |
840 | { | |
841 | statements.push_back(car); | |
842 | statements.push_back(cdr); | |
843 | this->tok = car->tok; | |
844 | } | |
845 | ||
846 | ||
56099f08 | 847 | |
cc9ee605 | 848 | void for_loop::print (ostream& o) const |
56099f08 | 849 | { |
f3c26ea5 | 850 | o << "for ("; |
cbfbbf69 | 851 | if (init) init->print (o); |
f3c26ea5 FCE |
852 | o << "; "; |
853 | cond->print (o); | |
854 | o << "; "; | |
cbfbbf69 | 855 | if (incr) incr->print (o); |
bb2e3076 | 856 | o << ") "; |
f3c26ea5 | 857 | block->print (o); |
56099f08 FCE |
858 | } |
859 | ||
860 | ||
cc9ee605 | 861 | void foreach_loop::print (ostream& o) const |
69c68955 FCE |
862 | { |
863 | o << "foreach (["; | |
864 | for (unsigned i=0; i<indexes.size(); i++) | |
865 | { | |
866 | if (i > 0) o << ", "; | |
867 | indexes[i]->print (o); | |
93484556 FCE |
868 | if (sort_direction != 0 && sort_column == i+1) |
869 | o << (sort_direction > 0 ? "+" : "-"); | |
69c68955 | 870 | } |
a9c62ac9 FCE |
871 | o << "] in "; |
872 | base->print_indexable (o); | |
93484556 FCE |
873 | if (sort_direction != 0 && sort_column == 0) |
874 | o << (sort_direction > 0 ? "+" : "-"); | |
27f21e8c DS |
875 | if (limit) |
876 | { | |
877 | o << " limit "; | |
878 | limit->print (o); | |
879 | } | |
93484556 | 880 | o << ") "; |
69c68955 FCE |
881 | block->print (o); |
882 | } | |
883 | ||
884 | ||
cc9ee605 | 885 | void null_statement::print (ostream& o) const |
56099f08 | 886 | { |
dff50e09 | 887 | o << ";"; |
56099f08 FCE |
888 | } |
889 | ||
890 | ||
cc9ee605 | 891 | void expr_statement::print (ostream& o) const |
56099f08 FCE |
892 | { |
893 | o << *value; | |
894 | } | |
895 | ||
896 | ||
cc9ee605 | 897 | void return_statement::print (ostream& o) const |
56099f08 FCE |
898 | { |
899 | o << "return " << *value; | |
900 | } | |
901 | ||
902 | ||
cc9ee605 | 903 | void delete_statement::print (ostream& o) const |
56099f08 FCE |
904 | { |
905 | o << "delete " << *value; | |
906 | } | |
907 | ||
cc9ee605 | 908 | void next_statement::print (ostream& o) const |
f3c26ea5 FCE |
909 | { |
910 | o << "next"; | |
911 | } | |
912 | ||
cc9ee605 | 913 | void break_statement::print (ostream& o) const |
f3c26ea5 FCE |
914 | { |
915 | o << "break"; | |
916 | } | |
917 | ||
cc9ee605 | 918 | void continue_statement::print (ostream& o) const |
f3c26ea5 FCE |
919 | { |
920 | o << "continue"; | |
921 | } | |
56099f08 | 922 | |
cc9ee605 | 923 | void if_statement::print (ostream& o) const |
56099f08 | 924 | { |
bb2e3076 | 925 | o << "if (" << *condition << ") " |
56099f08 FCE |
926 | << *thenblock << endl; |
927 | if (elseblock) | |
928 | o << "else " << *elseblock << endl; | |
929 | } | |
930 | ||
931 | ||
cc9ee605 | 932 | void stapfile::print (ostream& o) const |
56099f08 FCE |
933 | { |
934 | o << "# file " << name << endl; | |
935 | ||
54dfabe9 FCE |
936 | for (unsigned i=0; i<embeds.size(); i++) |
937 | embeds[i]->print (o); | |
938 | ||
bed7c0af FCE |
939 | for (unsigned i=0; i<globals.size(); i++) |
940 | { | |
941 | o << "global "; | |
942 | globals[i]->print (o); | |
943 | o << endl; | |
944 | } | |
945 | ||
20c6c071 GH |
946 | for (unsigned i=0; i<aliases.size(); i++) |
947 | { | |
948 | aliases[i]->print (o); | |
949 | o << endl; | |
950 | } | |
951 | ||
bed7c0af | 952 | for (unsigned i=0; i<probes.size(); i++) |
56099f08 FCE |
953 | { |
954 | probes[i]->print (o); | |
955 | o << endl; | |
956 | } | |
957 | ||
958 | for (unsigned j = 0; j < functions.size(); j++) | |
959 | { | |
960 | functions[j]->print (o); | |
961 | o << endl; | |
962 | } | |
963 | } | |
964 | ||
965 | ||
cc9ee605 | 966 | void probe::print (ostream& o) const |
56099f08 FCE |
967 | { |
968 | o << "probe "; | |
40a1cb62 FCE |
969 | printsig (o); |
970 | o << *body; | |
971 | } | |
972 | ||
973 | ||
cc9ee605 | 974 | void probe::printsig (ostream& o) const |
40a1cb62 | 975 | { |
77b2151e DB |
976 | const probe_alias *alias = get_alias (); |
977 | if (alias) | |
978 | { | |
979 | alias->printsig (o); | |
980 | return; | |
981 | } | |
dff50e09 | 982 | |
9c0c0e46 | 983 | for (unsigned i=0; i<locations.size(); i++) |
56099f08 | 984 | { |
65aeaea0 | 985 | if (i > 0) o << ","; |
9c0c0e46 | 986 | locations[i]->print (o); |
56099f08 | 987 | } |
56099f08 FCE |
988 | } |
989 | ||
990 | ||
c3a3c0c9 | 991 | void |
2c5a19c6 | 992 | probe::collect_derivation_chain (std::vector<probe*> &probes_list) |
c3a3c0c9 | 993 | { |
2c5a19c6 | 994 | probes_list.push_back(this); |
c3a3c0c9 WC |
995 | } |
996 | ||
997 | ||
cc9ee605 | 998 | void probe_point::print (ostream& o) const |
56099f08 | 999 | { |
9c0c0e46 FCE |
1000 | for (unsigned i=0; i<components.size(); i++) |
1001 | { | |
1002 | if (i>0) o << "."; | |
1003 | probe_point::component* c = components[i]; | |
1004 | o << c->functor; | |
1005 | if (c->arg) | |
1006 | o << "(" << *c->arg << ")"; | |
1007 | } | |
d898100a FCE |
1008 | if (sufficient) |
1009 | o << "!"; | |
1010 | else if (optional) // sufficient implies optional | |
6e3347a9 | 1011 | o << "?"; |
cbbe8080 MH |
1012 | if (condition) |
1013 | o<< " if (" << *condition << ")"; | |
c3a3c0c9 WC |
1014 | } |
1015 | ||
1016 | string probe_point::str () | |
1017 | { | |
1018 | ostringstream o; | |
1019 | for (unsigned i=0; i<components.size(); i++) | |
1020 | { | |
1021 | if (i>0) o << "."; | |
1022 | probe_point::component* c = components[i]; | |
1023 | o << c->functor; | |
1024 | if (c->arg) | |
1025 | o << "(" << *c->arg << ")"; | |
1026 | } | |
d898100a FCE |
1027 | if (sufficient) |
1028 | o << "!"; | |
1029 | else if (optional) // sufficient implies optional | |
c3a3c0c9 | 1030 | o << "?"; |
cbbe8080 MH |
1031 | if (condition) |
1032 | o<< " if (" << *condition << ")"; | |
c3a3c0c9 | 1033 | return o.str(); |
56099f08 FCE |
1034 | } |
1035 | ||
cc9ee605 | 1036 | |
20c6c071 GH |
1037 | probe_alias::probe_alias(std::vector<probe_point*> const & aliases): |
1038 | probe (), alias_names (aliases) | |
1039 | { | |
1040 | } | |
1041 | ||
cc9ee605 | 1042 | void probe_alias::printsig (ostream& o) const |
20c6c071 GH |
1043 | { |
1044 | for (unsigned i=0; i<alias_names.size(); i++) | |
1045 | { | |
1046 | o << (i>0 ? " = " : ""); | |
1047 | alias_names[i]->print (o); | |
1048 | } | |
5227f1ea | 1049 | o << " = "; |
20c6c071 GH |
1050 | for (unsigned i=0; i<locations.size(); i++) |
1051 | { | |
d898100a | 1052 | if (i > 0) o << ", "; |
20c6c071 GH |
1053 | locations[i]->print (o); |
1054 | } | |
1055 | } | |
1056 | ||
56099f08 | 1057 | |
cc9ee605 | 1058 | ostream& operator << (ostream& o, const probe_point& k) |
82919855 FCE |
1059 | { |
1060 | k.print (o); | |
1061 | return o; | |
1062 | } | |
1063 | ||
1064 | ||
cc9ee605 | 1065 | ostream& operator << (ostream& o, const symboldecl& k) |
56099f08 FCE |
1066 | { |
1067 | k.print (o); | |
1068 | return o; | |
1069 | } | |
1070 | ||
1071 | ||
82919855 FCE |
1072 | |
1073 | // ------------------------------------------------------------------------ | |
1074 | // visitors | |
1075 | ||
1076 | ||
1077 | void | |
1078 | block::visit (visitor* u) | |
1079 | { | |
1080 | u->visit_block (this); | |
1081 | } | |
1082 | ||
54dfabe9 FCE |
1083 | |
1084 | void | |
1085 | embeddedcode::visit (visitor* u) | |
1086 | { | |
1087 | u->visit_embeddedcode (this); | |
1088 | } | |
1089 | ||
1090 | ||
82919855 FCE |
1091 | void |
1092 | for_loop::visit (visitor* u) | |
1093 | { | |
1094 | u->visit_for_loop (this); | |
1095 | } | |
1096 | ||
69c68955 FCE |
1097 | void |
1098 | foreach_loop::visit (visitor* u) | |
1099 | { | |
1100 | u->visit_foreach_loop (this); | |
1101 | } | |
1102 | ||
82919855 FCE |
1103 | void |
1104 | null_statement::visit (visitor* u) | |
1105 | { | |
1106 | u->visit_null_statement (this); | |
1107 | } | |
1108 | ||
1109 | void | |
1110 | expr_statement::visit (visitor* u) | |
1111 | { | |
1112 | u->visit_expr_statement (this); | |
1113 | } | |
1114 | ||
1115 | void | |
1116 | return_statement::visit (visitor* u) | |
1117 | { | |
1118 | u->visit_return_statement (this); | |
1119 | } | |
1120 | ||
1121 | void | |
1122 | delete_statement::visit (visitor* u) | |
1123 | { | |
d7f3e0c5 | 1124 | u->push_active_lvalue (this->value); |
82919855 | 1125 | u->visit_delete_statement (this); |
d7f3e0c5 | 1126 | u->pop_active_lvalue (); |
82919855 FCE |
1127 | } |
1128 | ||
1129 | void | |
1130 | if_statement::visit (visitor* u) | |
1131 | { | |
1132 | u->visit_if_statement (this); | |
1133 | } | |
1134 | ||
f3c26ea5 FCE |
1135 | void |
1136 | next_statement::visit (visitor* u) | |
1137 | { | |
1138 | u->visit_next_statement (this); | |
1139 | } | |
1140 | ||
1141 | void | |
1142 | break_statement::visit (visitor* u) | |
1143 | { | |
1144 | u->visit_break_statement (this); | |
1145 | } | |
1146 | ||
1147 | void | |
1148 | continue_statement::visit (visitor* u) | |
1149 | { | |
1150 | u->visit_continue_statement (this); | |
1151 | } | |
1152 | ||
82919855 FCE |
1153 | void |
1154 | literal_string::visit(visitor* u) | |
1155 | { | |
1156 | u->visit_literal_string (this); | |
1157 | } | |
1158 | ||
1159 | void | |
1160 | literal_number::visit(visitor* u) | |
1161 | { | |
1162 | u->visit_literal_number (this); | |
1163 | } | |
1164 | ||
1165 | void | |
1166 | binary_expression::visit (visitor* u) | |
1167 | { | |
1168 | u->visit_binary_expression (this); | |
1169 | } | |
1170 | ||
1171 | void | |
1172 | unary_expression::visit (visitor* u) | |
1173 | { | |
1174 | u->visit_unary_expression (this); | |
1175 | } | |
1176 | ||
1177 | void | |
1178 | pre_crement::visit (visitor* u) | |
1179 | { | |
d7f3e0c5 | 1180 | u->push_active_lvalue (this->operand); |
82919855 | 1181 | u->visit_pre_crement (this); |
d7f3e0c5 | 1182 | u->pop_active_lvalue (); |
82919855 FCE |
1183 | } |
1184 | ||
1185 | void | |
1186 | post_crement::visit (visitor* u) | |
1187 | { | |
d7f3e0c5 | 1188 | u->push_active_lvalue (this->operand); |
82919855 | 1189 | u->visit_post_crement (this); |
d7f3e0c5 | 1190 | u->pop_active_lvalue (); |
82919855 FCE |
1191 | } |
1192 | ||
1193 | void | |
1194 | logical_or_expr::visit (visitor* u) | |
1195 | { | |
1196 | u->visit_logical_or_expr (this); | |
1197 | } | |
1198 | ||
1199 | void | |
1200 | logical_and_expr::visit (visitor* u) | |
1201 | { | |
1202 | u->visit_logical_and_expr (this); | |
1203 | } | |
1204 | ||
1205 | void | |
1206 | array_in::visit (visitor* u) | |
1207 | { | |
1208 | u->visit_array_in (this); | |
1209 | } | |
1210 | ||
1211 | void | |
1212 | comparison::visit (visitor* u) | |
1213 | { | |
1214 | u->visit_comparison (this); | |
1215 | } | |
1216 | ||
1217 | void | |
1218 | concatenation::visit (visitor* u) | |
1219 | { | |
1220 | u->visit_concatenation (this); | |
1221 | } | |
1222 | ||
82919855 FCE |
1223 | void |
1224 | ternary_expression::visit (visitor* u) | |
1225 | { | |
1226 | u->visit_ternary_expression (this); | |
1227 | } | |
1228 | ||
1229 | void | |
1230 | assignment::visit (visitor* u) | |
1231 | { | |
d7f3e0c5 | 1232 | u->push_active_lvalue (this->left); |
82919855 | 1233 | u->visit_assignment (this); |
d7f3e0c5 | 1234 | u->pop_active_lvalue (); |
82919855 FCE |
1235 | } |
1236 | ||
1237 | void | |
1238 | symbol::visit (visitor* u) | |
1239 | { | |
1240 | u->visit_symbol (this); | |
1241 | } | |
1242 | ||
dff50e09 | 1243 | void |
d7f3e0c5 GH |
1244 | target_symbol::visit (visitor* u) |
1245 | { | |
1246 | u->visit_target_symbol(this); | |
1247 | } | |
1248 | ||
9b5af295 JS |
1249 | void |
1250 | cast_op::visit (visitor* u) | |
1251 | { | |
1252 | u->visit_cast_op(this); | |
1253 | } | |
1254 | ||
82919855 FCE |
1255 | void |
1256 | arrayindex::visit (visitor* u) | |
1257 | { | |
1258 | u->visit_arrayindex (this); | |
1259 | } | |
1260 | ||
1261 | void | |
1262 | functioncall::visit (visitor* u) | |
1263 | { | |
1264 | u->visit_functioncall (this); | |
1265 | } | |
1266 | ||
d02548c0 GH |
1267 | void |
1268 | print_format::visit (visitor *u) | |
1269 | { | |
1270 | u->visit_print_format (this); | |
1271 | } | |
1272 | ||
1273 | void | |
1274 | stat_op::visit (visitor *u) | |
1275 | { | |
1276 | u->visit_stat_op (this); | |
1277 | } | |
1278 | ||
1279 | void | |
1280 | hist_op::visit (visitor *u) | |
1281 | { | |
1282 | u->visit_hist_op (this); | |
1283 | } | |
1284 | ||
dff50e09 | 1285 | void |
d02548c0 GH |
1286 | indexable::print_indexable (std::ostream& o) const |
1287 | { | |
1288 | const symbol *sym; | |
1289 | const hist_op *hist; | |
1290 | classify_const_indexable(this, sym, hist); | |
1291 | if (sym) | |
1292 | sym->print (o); | |
1293 | else | |
1294 | { | |
1295 | assert (hist); | |
1296 | hist->print (o); | |
dff50e09 | 1297 | } |
d02548c0 GH |
1298 | } |
1299 | ||
dff50e09 | 1300 | void |
d02548c0 GH |
1301 | indexable::visit_indexable (visitor* u) |
1302 | { | |
1303 | symbol *sym; | |
1304 | hist_op *hist; | |
1305 | classify_indexable(this, sym, hist); | |
1306 | if (sym) | |
1307 | sym->visit (u); | |
1308 | else | |
1309 | { | |
1310 | assert (hist); | |
1311 | hist->visit (u); | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | ||
dff50e09 | 1316 | bool |
d02548c0 GH |
1317 | indexable::is_symbol(symbol *& sym_out) |
1318 | { | |
1319 | sym_out = NULL; | |
1320 | return false; | |
1321 | } | |
1322 | ||
dff50e09 | 1323 | bool |
d02548c0 GH |
1324 | indexable::is_hist_op(hist_op *& hist_out) |
1325 | { | |
1326 | hist_out = NULL; | |
1327 | return false; | |
1328 | } | |
1329 | ||
dff50e09 | 1330 | bool |
d02548c0 GH |
1331 | indexable::is_const_symbol(const symbol *& sym_out) const |
1332 | { | |
1333 | sym_out = NULL; | |
1334 | return false; | |
1335 | } | |
1336 | ||
dff50e09 | 1337 | bool |
d02548c0 GH |
1338 | indexable::is_const_hist_op(const hist_op *& hist_out) const |
1339 | { | |
1340 | hist_out = NULL; | |
1341 | return false; | |
1342 | } | |
1343 | ||
dff50e09 | 1344 | bool |
d02548c0 GH |
1345 | symbol::is_symbol(symbol *& sym_out) |
1346 | { | |
1347 | sym_out = this; | |
1348 | return true; | |
1349 | } | |
1350 | ||
dff50e09 | 1351 | bool |
d02548c0 GH |
1352 | symbol::is_const_symbol(const symbol *& sym_out) const |
1353 | { | |
1354 | sym_out = this; | |
1355 | return true; | |
1356 | } | |
1357 | ||
1358 | const token * | |
1359 | symbol::get_tok() const | |
1360 | { | |
1361 | return tok; | |
1362 | } | |
1363 | ||
dff50e09 | 1364 | bool |
d02548c0 GH |
1365 | hist_op::is_hist_op(hist_op *& hist_out) |
1366 | { | |
1367 | hist_out = this; | |
1368 | return true; | |
1369 | } | |
1370 | ||
dff50e09 | 1371 | bool |
d02548c0 GH |
1372 | hist_op::is_const_hist_op(const hist_op *& hist_out) const |
1373 | { | |
1374 | hist_out = this; | |
1375 | return true; | |
1376 | } | |
1377 | ||
1378 | const token * | |
1379 | hist_op::get_tok() const | |
1380 | { | |
1381 | return tok; | |
1382 | } | |
1383 | ||
1384 | void | |
1385 | classify_indexable(indexable* ix, | |
1386 | symbol *& array_out, | |
dff50e09 | 1387 | hist_op *& hist_out) |
d02548c0 GH |
1388 | { |
1389 | array_out = NULL; | |
1390 | hist_out = NULL; | |
1391 | if (!(ix->is_symbol (array_out) || ix->is_hist_op (hist_out))) | |
1392 | throw semantic_error("Expecting symbol or histogram operator", ix->get_tok()); | |
1393 | if (ix && !(hist_out || array_out)) | |
1394 | throw semantic_error("Failed to classify indexable", ix->get_tok()); | |
1395 | } | |
1396 | ||
1397 | void | |
1398 | classify_const_indexable(const indexable* ix, | |
1399 | const symbol *& array_out, | |
dff50e09 | 1400 | const hist_op *& hist_out) |
d02548c0 GH |
1401 | { |
1402 | array_out = NULL; | |
1403 | hist_out = NULL; | |
1404 | if (!(ix->is_const_symbol(array_out) || ix->is_const_hist_op(hist_out))) | |
1405 | throw semantic_error("Expecting symbol or histogram operator", ix->get_tok()); | |
1406 | } | |
1407 | ||
d7f3e0c5 GH |
1408 | // ------------------------------------------------------------------------ |
1409 | ||
dff50e09 | 1410 | bool |
d7f3e0c5 GH |
1411 | visitor::is_active_lvalue(expression *e) |
1412 | { | |
1413 | for (unsigned i = 0; i < active_lvalues.size(); ++i) | |
1414 | { | |
1415 | if (active_lvalues[i] == e) | |
1416 | return true; | |
1417 | } | |
1418 | return false; | |
1419 | } | |
1420 | ||
dff50e09 | 1421 | void |
d7f3e0c5 GH |
1422 | visitor::push_active_lvalue(expression *e) |
1423 | { | |
1424 | active_lvalues.push_back(e); | |
1425 | } | |
1426 | ||
dff50e09 | 1427 | void |
d7f3e0c5 GH |
1428 | visitor::pop_active_lvalue() |
1429 | { | |
1430 | assert(!active_lvalues.empty()); | |
1431 | active_lvalues.pop_back(); | |
1432 | } | |
1433 | ||
1434 | ||
82919855 FCE |
1435 | |
1436 | // ------------------------------------------------------------------------ | |
1437 | ||
1438 | void | |
54dfabe9 | 1439 | traversing_visitor::visit_block (block* s) |
82919855 FCE |
1440 | { |
1441 | for (unsigned i=0; i<s->statements.size(); i++) | |
1442 | s->statements[i]->visit (this); | |
1443 | } | |
1444 | ||
1445 | void | |
78f6bba6 | 1446 | traversing_visitor::visit_embeddedcode (embeddedcode*) |
54dfabe9 FCE |
1447 | { |
1448 | } | |
1449 | ||
1450 | void | |
78f6bba6 | 1451 | traversing_visitor::visit_null_statement (null_statement*) |
82919855 FCE |
1452 | { |
1453 | } | |
1454 | ||
1455 | void | |
54dfabe9 | 1456 | traversing_visitor::visit_expr_statement (expr_statement* s) |
82919855 FCE |
1457 | { |
1458 | s->value->visit (this); | |
1459 | } | |
1460 | ||
1461 | void | |
1462 | traversing_visitor::visit_if_statement (if_statement* s) | |
1463 | { | |
1464 | s->condition->visit (this); | |
1465 | s->thenblock->visit (this); | |
2b066ec1 FCE |
1466 | if (s->elseblock) |
1467 | s->elseblock->visit (this); | |
82919855 FCE |
1468 | } |
1469 | ||
1470 | void | |
1471 | traversing_visitor::visit_for_loop (for_loop* s) | |
1472 | { | |
cbfbbf69 | 1473 | if (s->init) s->init->visit (this); |
82919855 | 1474 | s->cond->visit (this); |
cbfbbf69 | 1475 | if (s->incr) s->incr->visit (this); |
82919855 FCE |
1476 | s->block->visit (this); |
1477 | } | |
1478 | ||
69c68955 FCE |
1479 | void |
1480 | traversing_visitor::visit_foreach_loop (foreach_loop* s) | |
1481 | { | |
dff50e09 | 1482 | symbol *array = NULL; |
71572ba8 GH |
1483 | hist_op *hist = NULL; |
1484 | classify_indexable (s->base, array, hist); | |
1485 | if (array) | |
1486 | array->visit(this); | |
1487 | else | |
1488 | hist->visit(this); | |
1489 | ||
69c68955 FCE |
1490 | for (unsigned i=0; i<s->indexes.size(); i++) |
1491 | s->indexes[i]->visit (this); | |
27f21e8c DS |
1492 | |
1493 | if (s->limit) | |
1494 | s->limit->visit (this); | |
1495 | ||
69c68955 FCE |
1496 | s->block->visit (this); |
1497 | } | |
1498 | ||
82919855 FCE |
1499 | void |
1500 | traversing_visitor::visit_return_statement (return_statement* s) | |
1501 | { | |
1502 | s->value->visit (this); | |
1503 | } | |
1504 | ||
1505 | void | |
1506 | traversing_visitor::visit_delete_statement (delete_statement* s) | |
1507 | { | |
1508 | s->value->visit (this); | |
1509 | } | |
1510 | ||
f3c26ea5 | 1511 | void |
78f6bba6 | 1512 | traversing_visitor::visit_next_statement (next_statement*) |
f3c26ea5 FCE |
1513 | { |
1514 | } | |
1515 | ||
1516 | void | |
78f6bba6 | 1517 | traversing_visitor::visit_break_statement (break_statement*) |
f3c26ea5 FCE |
1518 | { |
1519 | } | |
1520 | ||
1521 | void | |
78f6bba6 | 1522 | traversing_visitor::visit_continue_statement (continue_statement*) |
f3c26ea5 FCE |
1523 | { |
1524 | } | |
1525 | ||
82919855 | 1526 | void |
78f6bba6 | 1527 | traversing_visitor::visit_literal_string (literal_string*) |
82919855 FCE |
1528 | { |
1529 | } | |
1530 | ||
1531 | void | |
78f6bba6 | 1532 | traversing_visitor::visit_literal_number (literal_number*) |
82919855 FCE |
1533 | { |
1534 | } | |
1535 | ||
1536 | void | |
1537 | traversing_visitor::visit_binary_expression (binary_expression* e) | |
1538 | { | |
1539 | e->left->visit (this); | |
1540 | e->right->visit (this); | |
1541 | } | |
1542 | ||
1543 | void | |
1544 | traversing_visitor::visit_unary_expression (unary_expression* e) | |
1545 | { | |
1546 | e->operand->visit (this); | |
1547 | } | |
1548 | ||
1549 | void | |
1550 | traversing_visitor::visit_pre_crement (pre_crement* e) | |
1551 | { | |
1552 | e->operand->visit (this); | |
1553 | } | |
1554 | ||
1555 | void | |
1556 | traversing_visitor::visit_post_crement (post_crement* e) | |
1557 | { | |
1558 | e->operand->visit (this); | |
1559 | } | |
1560 | ||
1561 | ||
1562 | void | |
1563 | traversing_visitor::visit_logical_or_expr (logical_or_expr* e) | |
1564 | { | |
1565 | e->left->visit (this); | |
1566 | e->right->visit (this); | |
1567 | } | |
1568 | ||
1569 | void | |
1570 | traversing_visitor::visit_logical_and_expr (logical_and_expr* e) | |
1571 | { | |
1572 | e->left->visit (this); | |
1573 | e->right->visit (this); | |
1574 | } | |
1575 | ||
1576 | void | |
1577 | traversing_visitor::visit_array_in (array_in* e) | |
1578 | { | |
ce10591c | 1579 | e->operand->visit (this); |
82919855 FCE |
1580 | } |
1581 | ||
1582 | void | |
1583 | traversing_visitor::visit_comparison (comparison* e) | |
1584 | { | |
1585 | e->left->visit (this); | |
1586 | e->right->visit (this); | |
1587 | } | |
1588 | ||
1589 | void | |
1590 | traversing_visitor::visit_concatenation (concatenation* e) | |
1591 | { | |
1592 | e->left->visit (this); | |
1593 | e->right->visit (this); | |
1594 | } | |
1595 | ||
82919855 FCE |
1596 | void |
1597 | traversing_visitor::visit_ternary_expression (ternary_expression* e) | |
1598 | { | |
1599 | e->cond->visit (this); | |
1600 | e->truevalue->visit (this); | |
1601 | e->falsevalue->visit (this); | |
1602 | } | |
1603 | ||
1604 | void | |
1605 | traversing_visitor::visit_assignment (assignment* e) | |
1606 | { | |
1607 | e->left->visit (this); | |
1608 | e->right->visit (this); | |
1609 | } | |
1610 | ||
1611 | void | |
78f6bba6 | 1612 | traversing_visitor::visit_symbol (symbol*) |
82919855 FCE |
1613 | { |
1614 | } | |
1615 | ||
d7f3e0c5 | 1616 | void |
78f6bba6 | 1617 | traversing_visitor::visit_target_symbol (target_symbol*) |
d7f3e0c5 GH |
1618 | { |
1619 | } | |
1620 | ||
9b5af295 JS |
1621 | void |
1622 | traversing_visitor::visit_cast_op (cast_op* e) | |
1623 | { | |
1624 | e->operand->visit (this); | |
1625 | } | |
1626 | ||
82919855 FCE |
1627 | void |
1628 | traversing_visitor::visit_arrayindex (arrayindex* e) | |
1629 | { | |
cbfbbf69 FCE |
1630 | for (unsigned i=0; i<e->indexes.size(); i++) |
1631 | e->indexes[i]->visit (this); | |
1632 | ||
1bbeef03 GH |
1633 | symbol *array = NULL; |
1634 | hist_op *hist = NULL; | |
1635 | classify_indexable(e->base, array, hist); | |
1636 | if (array) | |
1637 | return array->visit(this); | |
1638 | else | |
1639 | return hist->visit(this); | |
82919855 FCE |
1640 | } |
1641 | ||
1642 | void | |
1643 | traversing_visitor::visit_functioncall (functioncall* e) | |
1644 | { | |
1645 | for (unsigned i=0; i<e->args.size(); i++) | |
1646 | e->args[i]->visit (this); | |
1647 | } | |
1648 | ||
d02548c0 GH |
1649 | void |
1650 | traversing_visitor::visit_print_format (print_format* e) | |
1651 | { | |
1652 | for (unsigned i=0; i<e->args.size(); i++) | |
1653 | e->args[i]->visit (this); | |
a4636912 GH |
1654 | if (e->hist) |
1655 | e->hist->visit(this); | |
d02548c0 GH |
1656 | } |
1657 | ||
1658 | void | |
1659 | traversing_visitor::visit_stat_op (stat_op* e) | |
1660 | { | |
1661 | e->stat->visit (this); | |
1662 | } | |
1663 | ||
1664 | void | |
1665 | traversing_visitor::visit_hist_op (hist_op* e) | |
1666 | { | |
1667 | e->stat->visit (this); | |
1668 | } | |
1669 | ||
82919855 | 1670 | |
cbfbbf69 | 1671 | void |
dff50e09 | 1672 | functioncall_traversing_visitor::visit_functioncall (functioncall* e) |
cbfbbf69 FCE |
1673 | { |
1674 | traversing_visitor::visit_functioncall (e); | |
1675 | ||
1676 | // prevent infinite recursion | |
1677 | if (traversed.find (e->referent) == traversed.end ()) | |
1678 | { | |
1679 | traversed.insert (e->referent); | |
1680 | // recurse | |
3066c15c FCE |
1681 | functiondecl* last_current_function = current_function; |
1682 | current_function = e->referent; | |
cbfbbf69 | 1683 | e->referent->body->visit (this); |
3066c15c | 1684 | current_function = last_current_function; |
cbfbbf69 FCE |
1685 | } |
1686 | } | |
1687 | ||
1688 | ||
1689 | void | |
1690 | varuse_collecting_visitor::visit_embeddedcode (embeddedcode *s) | |
1691 | { | |
1b07c728 FCE |
1692 | // We want to elide embedded-C functions when possible. For |
1693 | // example, each $target variable access is expanded to an | |
1694 | // embedded-C function call. Yet, for safety reasons, we should | |
1695 | // presume that embedded-C functions have intentional side-effects. | |
1696 | // | |
1697 | // To tell these two types of functions apart, we apply a | |
1698 | // Kludge(tm): we look for a magic string within the function body. | |
1699 | // $target variables as rvalues will have this; lvalues won't. | |
1700 | // Also, explicit side-effect-free tapset functions will have this. | |
dff50e09 | 1701 | |
3066c15c | 1702 | assert (current_function); // only they get embedded code |
1b07c728 | 1703 | if (s->code.find ("/* pure */") != string::npos) |
3066c15c FCE |
1704 | return; |
1705 | ||
cbfbbf69 FCE |
1706 | embedded_seen = true; |
1707 | } | |
1708 | ||
b0be9bdb FCE |
1709 | void |
1710 | varuse_collecting_visitor::visit_target_symbol (target_symbol *e) | |
1711 | { | |
1712 | // Still-unresolved target symbol assignments get treated as | |
1713 | // generating side-effects like embedded-C, to prevent premature | |
1714 | // elision and later error message suppression (PR5516). rvalue use | |
1715 | // of unresolved target symbols is OTOH not considered a side-effect. | |
1716 | ||
1717 | if (is_active_lvalue (e)) | |
1718 | embedded_seen = true; | |
1719 | } | |
cbfbbf69 | 1720 | |
9b5af295 JS |
1721 | void |
1722 | varuse_collecting_visitor::visit_cast_op (cast_op *e) | |
1723 | { | |
1724 | // As with target_symbols, unresolved cast assignments need to preserved | |
1725 | // for later error handling. | |
1726 | if (is_active_lvalue (e)) | |
1727 | embedded_seen = true; | |
1728 | ||
1729 | functioncall_traversing_visitor::visit_cast_op (e); | |
1730 | } | |
1731 | ||
cbfbbf69 FCE |
1732 | void |
1733 | varuse_collecting_visitor::visit_print_format (print_format* e) | |
1734 | { | |
1735 | // NB: Instead of being top-level statements, "print" and "printf" | |
1736 | // are implemented as statement-expressions containing a | |
1737 | // print_format. They have side-effects, but not via the | |
dff50e09 | 1738 | // embedded-code detection method above. |
1b07c728 FCE |
1739 | // |
1740 | // But sprint and sprintf don't have side-effects. | |
1741 | ||
1742 | if (e->print_to_stream) | |
1743 | embedded_seen = true; // a proxy for "has unknown side-effects" | |
1744 | ||
cbfbbf69 FCE |
1745 | functioncall_traversing_visitor::visit_print_format (e); |
1746 | } | |
1747 | ||
1748 | ||
1749 | void | |
1750 | varuse_collecting_visitor::visit_assignment (assignment *e) | |
1751 | { | |
1752 | if (e->op == "=" || e->op == "<<<") // pure writes | |
1753 | { | |
3066c15c | 1754 | expression* last_lvalue = current_lvalue; |
cbfbbf69 FCE |
1755 | current_lvalue = e->left; // leave a mark for ::visit_symbol |
1756 | functioncall_traversing_visitor::visit_assignment (e); | |
1757 | current_lvalue = last_lvalue; | |
1758 | } | |
1759 | else // read-modify-writes | |
1760 | { | |
1761 | expression* last_lrvalue = current_lrvalue; | |
1762 | current_lrvalue = e->left; // leave a mark for ::visit_symbol | |
1763 | functioncall_traversing_visitor::visit_assignment (e); | |
1764 | current_lrvalue = last_lrvalue; | |
1765 | } | |
1766 | } | |
1767 | ||
1768 | void | |
1769 | varuse_collecting_visitor::visit_symbol (symbol *e) | |
1770 | { | |
1771 | if (e->referent == 0) | |
1772 | throw semantic_error ("symbol without referent", e->tok); | |
1773 | ||
d0c4107b FCE |
1774 | // We could handle initialized globals by marking them as "written". |
1775 | // However, this current visitor may be called for a function or | |
1776 | // probe body, from the point of view of which this global is | |
1777 | // already initialized, so not written. | |
1778 | /* | |
27d24ae2 FCE |
1779 | if (e->referent->init) |
1780 | written.insert (e->referent); | |
d0c4107b | 1781 | */ |
27d24ae2 | 1782 | |
cbfbbf69 FCE |
1783 | if (current_lvalue == e || current_lrvalue == e) |
1784 | { | |
1785 | written.insert (e->referent); | |
1786 | // clog << "write "; | |
1787 | } | |
1788 | if (current_lvalue != e || current_lrvalue == e) | |
1789 | { | |
1790 | read.insert (e->referent); | |
1791 | // clog << "read "; | |
1792 | } | |
1793 | // clog << *e->tok << endl; | |
1794 | } | |
1795 | ||
1796 | // NB: stat_op need not be overridden, since it will get to | |
1797 | // visit_symbol and only as a possible rvalue. | |
1798 | ||
d20fd9e9 | 1799 | |
cbfbbf69 FCE |
1800 | void |
1801 | varuse_collecting_visitor::visit_arrayindex (arrayindex *e) | |
1802 | { | |
1803 | // Hooking this callback is necessary because of the hacky | |
1804 | // statistics representation. For the expression "i[4] = 5", the | |
1805 | // incoming lvalue will point to this arrayindex. However, the | |
1806 | // symbol corresponding to the "i[4]" is multiply inherited with | |
1807 | // arrayindex. If the symbol base part of this object is not at | |
1808 | // offset 0, then static_cast<symbol*>(e) may result in a different | |
1809 | // address, and not match lvalue by number when we recurse that way. | |
1810 | // So we explicitly override the incoming lvalue/lrvalue values to | |
1811 | // point at the embedded objects' actual base addresses. | |
1812 | ||
1813 | expression* last_lrvalue = current_lrvalue; | |
1814 | expression* last_lvalue = current_lvalue; | |
1815 | ||
1816 | symbol *array = NULL; | |
1817 | hist_op *hist = NULL; | |
1818 | classify_indexable(e->base, array, hist); | |
1819 | ||
1820 | if (array) | |
1821 | { | |
1822 | if (current_lrvalue == e) current_lrvalue = array; | |
1823 | if (current_lvalue == e) current_lvalue = array; | |
1824 | functioncall_traversing_visitor::visit_arrayindex (e); | |
1825 | } | |
1826 | else // if (hist) | |
1827 | { | |
1828 | if (current_lrvalue == e) current_lrvalue = hist->stat; | |
1829 | if (current_lvalue == e) current_lvalue = hist->stat; | |
1830 | functioncall_traversing_visitor::visit_arrayindex (e); | |
1831 | } | |
1832 | ||
1833 | current_lrvalue = last_lrvalue; | |
1834 | current_lvalue = last_lvalue; | |
1835 | } | |
1836 | ||
1837 | ||
1838 | void | |
1839 | varuse_collecting_visitor::visit_pre_crement (pre_crement *e) | |
1840 | { | |
1841 | expression* last_lrvalue = current_lrvalue; | |
1842 | current_lrvalue = e->operand; // leave a mark for ::visit_symbol | |
1843 | functioncall_traversing_visitor::visit_pre_crement (e); | |
1844 | current_lrvalue = last_lrvalue; | |
1845 | } | |
1846 | ||
1847 | void | |
1848 | varuse_collecting_visitor::visit_post_crement (post_crement *e) | |
1849 | { | |
1850 | expression* last_lrvalue = current_lrvalue; | |
1851 | current_lrvalue = e->operand; // leave a mark for ::visit_symbol | |
1852 | functioncall_traversing_visitor::visit_post_crement (e); | |
1853 | current_lrvalue = last_lrvalue; | |
1854 | } | |
1855 | ||
3066c15c FCE |
1856 | void |
1857 | varuse_collecting_visitor::visit_foreach_loop (foreach_loop* s) | |
1858 | { | |
27d24ae2 FCE |
1859 | // NB: we duplicate so don't bother call |
1860 | // functioncall_traversing_visitor::visit_foreach_loop (s); | |
1861 | ||
dff50e09 | 1862 | symbol *array = NULL; |
27d24ae2 FCE |
1863 | hist_op *hist = NULL; |
1864 | classify_indexable (s->base, array, hist); | |
1865 | if (array) | |
1866 | array->visit(this); | |
1867 | else | |
1868 | hist->visit(this); | |
1869 | ||
3066c15c | 1870 | // If the collection is sorted, imply a "write" access to the |
27d24ae2 | 1871 | // array in addition to the "read" one already noted above. |
3066c15c FCE |
1872 | if (s->sort_direction) |
1873 | { | |
dff50e09 | 1874 | symbol *array = NULL; |
3066c15c FCE |
1875 | hist_op *hist = NULL; |
1876 | classify_indexable (s->base, array, hist); | |
1877 | if (array) this->written.insert (array->referent); | |
1878 | // XXX: Can hist_op iterations be sorted? | |
1879 | } | |
27d24ae2 FCE |
1880 | |
1881 | // NB: don't forget to visit the index expressions, which are lvalues. | |
1882 | for (unsigned i=0; i<s->indexes.size(); i++) | |
1883 | { | |
1884 | expression* last_lvalue = current_lvalue; | |
1885 | current_lvalue = s->indexes[i]; // leave a mark for ::visit_symbol | |
1886 | s->indexes[i]->visit (this); | |
1887 | current_lvalue = last_lvalue; | |
1888 | } | |
1889 | ||
1890 | if (s->limit) | |
1891 | s->limit->visit (this); | |
1892 | ||
1893 | s->block->visit (this); | |
3066c15c | 1894 | } |
cbfbbf69 FCE |
1895 | |
1896 | ||
3066c15c FCE |
1897 | void |
1898 | varuse_collecting_visitor::visit_delete_statement (delete_statement* s) | |
1899 | { | |
1900 | // Ideally, this would be treated like an assignment: a plain write | |
1901 | // to the underlying value ("lvalue"). XXX: However, the | |
1902 | // optimization pass is not smart enough to remove an unneeded | |
1903 | // "delete" yet, so we pose more like a *crement ("lrvalue"). This | |
1904 | // should protect the underlying value from optimizional mischief. | |
1905 | expression* last_lrvalue = current_lrvalue; | |
1906 | current_lrvalue = s->value; // leave a mark for ::visit_symbol | |
1907 | functioncall_traversing_visitor::visit_delete_statement (s); | |
1908 | current_lrvalue = last_lrvalue; | |
1909 | } | |
cbfbbf69 | 1910 | |
cf9ff341 FCE |
1911 | bool |
1912 | varuse_collecting_visitor::side_effect_free () | |
1913 | { | |
1914 | return (written.empty() && !embedded_seen); | |
1915 | } | |
1916 | ||
1917 | ||
1918 | bool | |
1919 | varuse_collecting_visitor::side_effect_free_wrt (const set<vardecl*>& vars) | |
1920 | { | |
1921 | // A looser notion of side-effect-freeness with respect to a given | |
1922 | // list of variables. | |
1923 | ||
1924 | // That's useful because the written list may consist of local | |
1925 | // variables of called functions. But visible side-effects only | |
1926 | // occur if the client's locals, or any globals are written-to. | |
1927 | ||
1928 | set<vardecl*> intersection; | |
1929 | insert_iterator<set<vardecl*> > int_it (intersection, intersection.begin()); | |
1930 | set_intersection (written.begin(), written.end(), | |
1931 | vars.begin(), vars.end(), | |
1932 | int_it); | |
1933 | ||
1934 | return (intersection.empty() && !embedded_seen); | |
1935 | } | |
1936 | ||
1937 | ||
1938 | ||
cbfbbf69 | 1939 | |
82919855 FCE |
1940 | // ------------------------------------------------------------------------ |
1941 | ||
1942 | ||
1943 | throwing_visitor::throwing_visitor (const std::string& m): msg (m) {} | |
1944 | throwing_visitor::throwing_visitor (): msg ("invalid element") {} | |
1945 | ||
1946 | ||
1947 | void | |
1948 | throwing_visitor::throwone (const token* t) | |
1949 | { | |
1950 | throw semantic_error (msg, t); | |
1951 | } | |
1952 | ||
1953 | void | |
54dfabe9 FCE |
1954 | throwing_visitor::visit_block (block* s) |
1955 | { | |
1956 | throwone (s->tok); | |
1957 | } | |
1958 | ||
1959 | void | |
1960 | throwing_visitor::visit_embeddedcode (embeddedcode* s) | |
82919855 FCE |
1961 | { |
1962 | throwone (s->tok); | |
1963 | } | |
1964 | ||
1965 | void | |
54dfabe9 | 1966 | throwing_visitor::visit_null_statement (null_statement* s) |
82919855 FCE |
1967 | { |
1968 | throwone (s->tok); | |
1969 | } | |
1970 | ||
1971 | void | |
54dfabe9 | 1972 | throwing_visitor::visit_expr_statement (expr_statement* s) |
82919855 FCE |
1973 | { |
1974 | throwone (s->tok); | |
1975 | } | |
1976 | ||
1977 | void | |
1978 | throwing_visitor::visit_if_statement (if_statement* s) | |
1979 | { | |
1980 | throwone (s->tok); | |
1981 | } | |
1982 | ||
1983 | void | |
1984 | throwing_visitor::visit_for_loop (for_loop* s) | |
1985 | { | |
1986 | throwone (s->tok); | |
1987 | } | |
1988 | ||
69c68955 FCE |
1989 | void |
1990 | throwing_visitor::visit_foreach_loop (foreach_loop* s) | |
1991 | { | |
1992 | throwone (s->tok); | |
1993 | } | |
1994 | ||
82919855 FCE |
1995 | void |
1996 | throwing_visitor::visit_return_statement (return_statement* s) | |
1997 | { | |
1998 | throwone (s->tok); | |
1999 | } | |
2000 | ||
2001 | void | |
2002 | throwing_visitor::visit_delete_statement (delete_statement* s) | |
2003 | { | |
2004 | throwone (s->tok); | |
2005 | } | |
2006 | ||
f3c26ea5 FCE |
2007 | void |
2008 | throwing_visitor::visit_next_statement (next_statement* s) | |
2009 | { | |
2010 | throwone (s->tok); | |
2011 | } | |
2012 | ||
2013 | void | |
2014 | throwing_visitor::visit_break_statement (break_statement* s) | |
2015 | { | |
2016 | throwone (s->tok); | |
2017 | } | |
2018 | ||
2019 | void | |
2020 | throwing_visitor::visit_continue_statement (continue_statement* s) | |
2021 | { | |
2022 | throwone (s->tok); | |
2023 | } | |
2024 | ||
82919855 FCE |
2025 | void |
2026 | throwing_visitor::visit_literal_string (literal_string* e) | |
2027 | { | |
2028 | throwone (e->tok); | |
2029 | } | |
2030 | ||
2031 | void | |
2032 | throwing_visitor::visit_literal_number (literal_number* e) | |
2033 | { | |
2034 | throwone (e->tok); | |
2035 | } | |
2036 | ||
2037 | void | |
2038 | throwing_visitor::visit_binary_expression (binary_expression* e) | |
2039 | { | |
2040 | throwone (e->tok); | |
2041 | } | |
2042 | ||
2043 | void | |
2044 | throwing_visitor::visit_unary_expression (unary_expression* e) | |
2045 | { | |
2046 | throwone (e->tok); | |
2047 | } | |
2048 | ||
2049 | void | |
2050 | throwing_visitor::visit_pre_crement (pre_crement* e) | |
2051 | { | |
2052 | throwone (e->tok); | |
2053 | } | |
2054 | ||
2055 | void | |
2056 | throwing_visitor::visit_post_crement (post_crement* e) | |
2057 | { | |
2058 | throwone (e->tok); | |
0054a7ea FCE |
2059 | } |
2060 | ||
2061 | ||
82919855 FCE |
2062 | void |
2063 | throwing_visitor::visit_logical_or_expr (logical_or_expr* e) | |
2064 | { | |
2065 | throwone (e->tok); | |
2066 | } | |
2067 | ||
2068 | void | |
2069 | throwing_visitor::visit_logical_and_expr (logical_and_expr* e) | |
2070 | { | |
2071 | throwone (e->tok); | |
2072 | } | |
2073 | ||
2074 | void | |
2075 | throwing_visitor::visit_array_in (array_in* e) | |
2076 | { | |
2077 | throwone (e->tok); | |
2078 | } | |
2079 | ||
2080 | void | |
2081 | throwing_visitor::visit_comparison (comparison* e) | |
2082 | { | |
2083 | throwone (e->tok); | |
2084 | } | |
2085 | ||
2086 | void | |
2087 | throwing_visitor::visit_concatenation (concatenation* e) | |
2088 | { | |
2089 | throwone (e->tok); | |
2090 | } | |
2091 | ||
82919855 FCE |
2092 | void |
2093 | throwing_visitor::visit_ternary_expression (ternary_expression* e) | |
2094 | { | |
2095 | throwone (e->tok); | |
2096 | } | |
2097 | ||
2098 | void | |
2099 | throwing_visitor::visit_assignment (assignment* e) | |
2100 | { | |
2101 | throwone (e->tok); | |
2102 | } | |
2103 | ||
2104 | void | |
2105 | throwing_visitor::visit_symbol (symbol* e) | |
2106 | { | |
2107 | throwone (e->tok); | |
2108 | } | |
2109 | ||
d7f3e0c5 GH |
2110 | void |
2111 | throwing_visitor::visit_target_symbol (target_symbol* e) | |
2112 | { | |
2113 | throwone (e->tok); | |
2114 | } | |
2115 | ||
9b5af295 JS |
2116 | void |
2117 | throwing_visitor::visit_cast_op (cast_op* e) | |
2118 | { | |
2119 | throwone (e->tok); | |
2120 | } | |
2121 | ||
82919855 FCE |
2122 | void |
2123 | throwing_visitor::visit_arrayindex (arrayindex* e) | |
2124 | { | |
2125 | throwone (e->tok); | |
2126 | } | |
2127 | ||
2128 | void | |
2129 | throwing_visitor::visit_functioncall (functioncall* e) | |
2130 | { | |
2131 | throwone (e->tok); | |
2132 | } | |
85365d1b | 2133 | |
d02548c0 GH |
2134 | void |
2135 | throwing_visitor::visit_print_format (print_format* e) | |
2136 | { | |
2137 | throwone (e->tok); | |
2138 | } | |
2139 | ||
2140 | void | |
2141 | throwing_visitor::visit_stat_op (stat_op* e) | |
2142 | { | |
2143 | throwone (e->tok); | |
2144 | } | |
2145 | ||
2146 | void | |
2147 | throwing_visitor::visit_hist_op (hist_op* e) | |
2148 | { | |
2149 | throwone (e->tok); | |
2150 | } | |
2151 | ||
85365d1b GH |
2152 | |
2153 | // ------------------------------------------------------------------------ | |
2154 | ||
85365d1b GH |
2155 | |
2156 | void | |
4b6455e8 | 2157 | update_visitor::visit_block (block* s) |
85365d1b | 2158 | { |
85365d1b | 2159 | for (unsigned i = 0; i < s->statements.size(); ++i) |
4b6455e8 JS |
2160 | s->statements[i] = require (s->statements[i]); |
2161 | provide (s); | |
2162 | } | |
2163 | ||
2164 | void | |
2165 | update_visitor::visit_embeddedcode (embeddedcode* s) | |
2166 | { | |
2167 | provide (s); | |
2168 | } | |
2169 | ||
2170 | void | |
2171 | update_visitor::visit_null_statement (null_statement* s) | |
2172 | { | |
2173 | provide (s); | |
2174 | } | |
2175 | ||
2176 | void | |
2177 | update_visitor::visit_expr_statement (expr_statement* s) | |
2178 | { | |
2179 | s->value = require (s->value); | |
2180 | provide (s); | |
2181 | } | |
2182 | ||
2183 | void | |
2184 | update_visitor::visit_if_statement (if_statement* s) | |
2185 | { | |
2186 | s->condition = require (s->condition); | |
2187 | s->thenblock = require (s->thenblock); | |
2188 | s->elseblock = require (s->elseblock); | |
2189 | provide (s); | |
2190 | } | |
2191 | ||
2192 | void | |
2193 | update_visitor::visit_for_loop (for_loop* s) | |
2194 | { | |
2195 | s->init = require (s->init); | |
2196 | s->cond = require (s->cond); | |
2197 | s->incr = require (s->incr); | |
2198 | s->block = require (s->block); | |
2199 | provide (s); | |
2200 | } | |
2201 | ||
2202 | void | |
2203 | update_visitor::visit_foreach_loop (foreach_loop* s) | |
2204 | { | |
2205 | for (unsigned i = 0; i < s->indexes.size(); ++i) | |
2206 | s->indexes[i] = require (s->indexes[i]); | |
2207 | s->base = require (s->base); | |
2208 | s->limit = require (s->limit); | |
2209 | s->block = require (s->block); | |
2210 | provide (s); | |
2211 | } | |
2212 | ||
2213 | void | |
2214 | update_visitor::visit_return_statement (return_statement* s) | |
2215 | { | |
2216 | s->value = require (s->value); | |
2217 | provide (s); | |
2218 | } | |
2219 | ||
2220 | void | |
2221 | update_visitor::visit_delete_statement (delete_statement* s) | |
2222 | { | |
2223 | s->value = require (s->value); | |
2224 | provide (s); | |
2225 | } | |
2226 | ||
2227 | void | |
2228 | update_visitor::visit_next_statement (next_statement* s) | |
2229 | { | |
2230 | provide (s); | |
2231 | } | |
2232 | ||
2233 | void | |
2234 | update_visitor::visit_break_statement (break_statement* s) | |
2235 | { | |
2236 | provide (s); | |
2237 | } | |
2238 | ||
2239 | void | |
2240 | update_visitor::visit_continue_statement (continue_statement* s) | |
2241 | { | |
2242 | provide (s); | |
2243 | } | |
2244 | ||
2245 | void | |
2246 | update_visitor::visit_literal_string (literal_string* e) | |
2247 | { | |
2248 | provide (e); | |
2249 | } | |
2250 | ||
2251 | void | |
2252 | update_visitor::visit_literal_number (literal_number* e) | |
2253 | { | |
2254 | provide (e); | |
2255 | } | |
2256 | ||
2257 | void | |
2258 | update_visitor::visit_binary_expression (binary_expression* e) | |
2259 | { | |
2260 | e->left = require (e->left); | |
2261 | e->right = require (e->right); | |
2262 | provide (e); | |
2263 | } | |
2264 | ||
2265 | void | |
2266 | update_visitor::visit_unary_expression (unary_expression* e) | |
2267 | { | |
2268 | e->operand = require (e->operand); | |
2269 | provide (e); | |
2270 | } | |
2271 | ||
2272 | void | |
2273 | update_visitor::visit_pre_crement (pre_crement* e) | |
2274 | { | |
2275 | e->operand = require (e->operand); | |
2276 | provide (e); | |
2277 | } | |
2278 | ||
2279 | void | |
2280 | update_visitor::visit_post_crement (post_crement* e) | |
2281 | { | |
2282 | e->operand = require (e->operand); | |
2283 | provide (e); | |
2284 | } | |
2285 | ||
2286 | ||
2287 | void | |
2288 | update_visitor::visit_logical_or_expr (logical_or_expr* e) | |
2289 | { | |
2290 | e->left = require (e->left); | |
2291 | e->right = require (e->right); | |
2292 | provide (e); | |
2293 | } | |
2294 | ||
2295 | void | |
2296 | update_visitor::visit_logical_and_expr (logical_and_expr* e) | |
2297 | { | |
2298 | e->left = require (e->left); | |
2299 | e->right = require (e->right); | |
2300 | provide (e); | |
2301 | } | |
2302 | ||
2303 | void | |
2304 | update_visitor::visit_array_in (array_in* e) | |
2305 | { | |
2306 | e->operand = require (e->operand); | |
2307 | provide (e); | |
2308 | } | |
2309 | ||
2310 | void | |
2311 | update_visitor::visit_comparison (comparison* e) | |
2312 | { | |
2313 | e->left = require (e->left); | |
2314 | e->right = require (e->right); | |
2315 | provide (e); | |
2316 | } | |
2317 | ||
2318 | void | |
2319 | update_visitor::visit_concatenation (concatenation* e) | |
2320 | { | |
2321 | e->left = require (e->left); | |
2322 | e->right = require (e->right); | |
2323 | provide (e); | |
2324 | } | |
2325 | ||
2326 | void | |
2327 | update_visitor::visit_ternary_expression (ternary_expression* e) | |
2328 | { | |
2329 | e->cond = require (e->cond); | |
2330 | e->truevalue = require (e->truevalue); | |
2331 | e->falsevalue = require (e->falsevalue); | |
2332 | provide (e); | |
2333 | } | |
2334 | ||
2335 | void | |
2336 | update_visitor::visit_assignment (assignment* e) | |
2337 | { | |
2338 | e->left = require (e->left); | |
2339 | e->right = require (e->right); | |
2340 | provide (e); | |
2341 | } | |
2342 | ||
2343 | void | |
2344 | update_visitor::visit_symbol (symbol* e) | |
2345 | { | |
2346 | provide (e); | |
2347 | } | |
2348 | ||
2349 | void | |
2350 | update_visitor::visit_target_symbol (target_symbol* e) | |
2351 | { | |
2352 | provide (e); | |
2353 | } | |
2354 | ||
9b5af295 JS |
2355 | void |
2356 | update_visitor::visit_cast_op (cast_op* e) | |
2357 | { | |
2358 | e->operand = require (e->operand); | |
2359 | provide (e); | |
2360 | } | |
2361 | ||
4b6455e8 JS |
2362 | void |
2363 | update_visitor::visit_arrayindex (arrayindex* e) | |
2364 | { | |
2365 | e->base = require (e->base); | |
2366 | for (unsigned i = 0; i < e->indexes.size(); ++i) | |
2367 | e->indexes[i] = require (e->indexes[i]); | |
2368 | provide (e); | |
2369 | } | |
2370 | ||
2371 | void | |
2372 | update_visitor::visit_functioncall (functioncall* e) | |
2373 | { | |
2374 | for (unsigned i = 0; i < e->args.size(); ++i) | |
2375 | e->args[i] = require (e->args[i]); | |
2376 | provide (e); | |
2377 | } | |
2378 | ||
2379 | void | |
2380 | update_visitor::visit_print_format (print_format* e) | |
2381 | { | |
2382 | for (unsigned i = 0; i < e->args.size(); ++i) | |
2383 | e->args[i] = require (e->args[i]); | |
2384 | e->hist = require (e->hist); | |
2385 | provide (e); | |
2386 | } | |
2387 | ||
2388 | void | |
2389 | update_visitor::visit_stat_op (stat_op* e) | |
2390 | { | |
2391 | e->stat = require (e->stat); | |
2392 | provide (e); | |
2393 | } | |
2394 | ||
2395 | void | |
2396 | update_visitor::visit_hist_op (hist_op* e) | |
2397 | { | |
2398 | e->stat = require (e->stat); | |
2399 | provide (e); | |
2400 | } | |
2401 | ||
2402 | template <> indexable* | |
1cd151d5 | 2403 | update_visitor::require <indexable*> (indexable* src, bool clearok) |
4b6455e8 JS |
2404 | { |
2405 | indexable *dst = NULL; | |
2406 | if (src != NULL) | |
2407 | { | |
2408 | symbol *array_src=NULL; | |
2409 | hist_op *hist_src=NULL; | |
2410 | ||
2411 | classify_indexable(src, array_src, hist_src); | |
2412 | ||
2413 | if (array_src) | |
2414 | dst = require (array_src); | |
2415 | else | |
2416 | dst = require (hist_src); | |
1cd151d5 | 2417 | assert(clearok || dst); |
4b6455e8 JS |
2418 | } |
2419 | return dst; | |
2420 | } | |
2421 | ||
2422 | ||
2423 | // ------------------------------------------------------------------------ | |
2424 | ||
2425 | ||
2426 | void | |
2427 | deep_copy_visitor::visit_block (block* s) | |
2428 | { | |
2429 | update_visitor::visit_block(new block(*s)); | |
85365d1b GH |
2430 | } |
2431 | ||
2432 | void | |
54dfabe9 FCE |
2433 | deep_copy_visitor::visit_embeddedcode (embeddedcode* s) |
2434 | { | |
4b6455e8 | 2435 | update_visitor::visit_embeddedcode(new embeddedcode(*s)); |
54dfabe9 FCE |
2436 | } |
2437 | ||
2438 | void | |
2439 | deep_copy_visitor::visit_null_statement (null_statement* s) | |
85365d1b | 2440 | { |
4b6455e8 | 2441 | update_visitor::visit_null_statement(new null_statement(*s)); |
85365d1b GH |
2442 | } |
2443 | ||
2444 | void | |
54dfabe9 | 2445 | deep_copy_visitor::visit_expr_statement (expr_statement* s) |
85365d1b | 2446 | { |
4b6455e8 | 2447 | update_visitor::visit_expr_statement(new expr_statement(*s)); |
85365d1b GH |
2448 | } |
2449 | ||
2450 | void | |
2451 | deep_copy_visitor::visit_if_statement (if_statement* s) | |
2452 | { | |
4b6455e8 | 2453 | update_visitor::visit_if_statement(new if_statement(*s)); |
85365d1b GH |
2454 | } |
2455 | ||
2456 | void | |
2457 | deep_copy_visitor::visit_for_loop (for_loop* s) | |
2458 | { | |
4b6455e8 | 2459 | update_visitor::visit_for_loop(new for_loop(*s)); |
85365d1b GH |
2460 | } |
2461 | ||
2462 | void | |
2463 | deep_copy_visitor::visit_foreach_loop (foreach_loop* s) | |
2464 | { | |
4b6455e8 | 2465 | update_visitor::visit_foreach_loop(new foreach_loop(*s)); |
85365d1b GH |
2466 | } |
2467 | ||
2468 | void | |
2469 | deep_copy_visitor::visit_return_statement (return_statement* s) | |
2470 | { | |
4b6455e8 | 2471 | update_visitor::visit_return_statement(new return_statement(*s)); |
85365d1b GH |
2472 | } |
2473 | ||
2474 | void | |
2475 | deep_copy_visitor::visit_delete_statement (delete_statement* s) | |
2476 | { | |
4b6455e8 | 2477 | update_visitor::visit_delete_statement(new delete_statement(*s)); |
85365d1b GH |
2478 | } |
2479 | ||
2480 | void | |
2481 | deep_copy_visitor::visit_next_statement (next_statement* s) | |
2482 | { | |
4b6455e8 | 2483 | update_visitor::visit_next_statement(new next_statement(*s)); |
85365d1b GH |
2484 | } |
2485 | ||
2486 | void | |
2487 | deep_copy_visitor::visit_break_statement (break_statement* s) | |
2488 | { | |
4b6455e8 | 2489 | update_visitor::visit_break_statement(new break_statement(*s)); |
85365d1b GH |
2490 | } |
2491 | ||
2492 | void | |
2493 | deep_copy_visitor::visit_continue_statement (continue_statement* s) | |
2494 | { | |
4b6455e8 | 2495 | update_visitor::visit_continue_statement(new continue_statement(*s)); |
85365d1b GH |
2496 | } |
2497 | ||
2498 | void | |
2499 | deep_copy_visitor::visit_literal_string (literal_string* e) | |
2500 | { | |
4b6455e8 | 2501 | update_visitor::visit_literal_string(new literal_string(*e)); |
85365d1b GH |
2502 | } |
2503 | ||
2504 | void | |
2505 | deep_copy_visitor::visit_literal_number (literal_number* e) | |
2506 | { | |
4b6455e8 | 2507 | update_visitor::visit_literal_number(new literal_number(*e)); |
85365d1b GH |
2508 | } |
2509 | ||
2510 | void | |
2511 | deep_copy_visitor::visit_binary_expression (binary_expression* e) | |
2512 | { | |
4b6455e8 | 2513 | update_visitor::visit_binary_expression(new binary_expression(*e)); |
85365d1b GH |
2514 | } |
2515 | ||
2516 | void | |
2517 | deep_copy_visitor::visit_unary_expression (unary_expression* e) | |
2518 | { | |
4b6455e8 | 2519 | update_visitor::visit_unary_expression(new unary_expression(*e)); |
85365d1b GH |
2520 | } |
2521 | ||
2522 | void | |
2523 | deep_copy_visitor::visit_pre_crement (pre_crement* e) | |
2524 | { | |
4b6455e8 | 2525 | update_visitor::visit_pre_crement(new pre_crement(*e)); |
85365d1b GH |
2526 | } |
2527 | ||
2528 | void | |
2529 | deep_copy_visitor::visit_post_crement (post_crement* e) | |
2530 | { | |
4b6455e8 | 2531 | update_visitor::visit_post_crement(new post_crement(*e)); |
85365d1b GH |
2532 | } |
2533 | ||
2534 | ||
2535 | void | |
2536 | deep_copy_visitor::visit_logical_or_expr (logical_or_expr* e) | |
2537 | { | |
4b6455e8 | 2538 | update_visitor::visit_logical_or_expr(new logical_or_expr(*e)); |
85365d1b GH |
2539 | } |
2540 | ||
2541 | void | |
2542 | deep_copy_visitor::visit_logical_and_expr (logical_and_expr* e) | |
2543 | { | |
4b6455e8 | 2544 | update_visitor::visit_logical_and_expr(new logical_and_expr(*e)); |
85365d1b GH |
2545 | } |
2546 | ||
2547 | void | |
2548 | deep_copy_visitor::visit_array_in (array_in* e) | |
2549 | { | |
4b6455e8 | 2550 | update_visitor::visit_array_in(new array_in(*e)); |
85365d1b GH |
2551 | } |
2552 | ||
2553 | void | |
2554 | deep_copy_visitor::visit_comparison (comparison* e) | |
2555 | { | |
4b6455e8 | 2556 | update_visitor::visit_comparison(new comparison(*e)); |
85365d1b GH |
2557 | } |
2558 | ||
2559 | void | |
2560 | deep_copy_visitor::visit_concatenation (concatenation* e) | |
2561 | { | |
4b6455e8 | 2562 | update_visitor::visit_concatenation(new concatenation(*e)); |
85365d1b GH |
2563 | } |
2564 | ||
2565 | void | |
2566 | deep_copy_visitor::visit_ternary_expression (ternary_expression* e) | |
2567 | { | |
4b6455e8 | 2568 | update_visitor::visit_ternary_expression(new ternary_expression(*e)); |
85365d1b GH |
2569 | } |
2570 | ||
2571 | void | |
2572 | deep_copy_visitor::visit_assignment (assignment* e) | |
2573 | { | |
4b6455e8 | 2574 | update_visitor::visit_assignment(new assignment(*e)); |
85365d1b GH |
2575 | } |
2576 | ||
2577 | void | |
2578 | deep_copy_visitor::visit_symbol (symbol* e) | |
2579 | { | |
4b6455e8 JS |
2580 | symbol* n = new symbol(*e); |
2581 | n->referent = NULL; // don't copy! | |
2582 | update_visitor::visit_symbol(n); | |
d7f3e0c5 GH |
2583 | } |
2584 | ||
2585 | void | |
2586 | deep_copy_visitor::visit_target_symbol (target_symbol* e) | |
2587 | { | |
4b6455e8 JS |
2588 | target_symbol* n = new target_symbol(*e); |
2589 | n->referent = NULL; // don't copy! | |
2590 | update_visitor::visit_target_symbol(n); | |
85365d1b GH |
2591 | } |
2592 | ||
9b5af295 JS |
2593 | void |
2594 | deep_copy_visitor::visit_cast_op (cast_op* e) | |
2595 | { | |
2596 | update_visitor::visit_cast_op(new cast_op(*e)); | |
2597 | } | |
2598 | ||
85365d1b GH |
2599 | void |
2600 | deep_copy_visitor::visit_arrayindex (arrayindex* e) | |
2601 | { | |
4b6455e8 | 2602 | update_visitor::visit_arrayindex(new arrayindex(*e)); |
85365d1b GH |
2603 | } |
2604 | ||
2605 | void | |
2606 | deep_copy_visitor::visit_functioncall (functioncall* e) | |
2607 | { | |
4b6455e8 JS |
2608 | functioncall* n = new functioncall(*e); |
2609 | n->referent = NULL; // don't copy! | |
2610 | update_visitor::visit_functioncall(n); | |
85365d1b GH |
2611 | } |
2612 | ||
d02548c0 GH |
2613 | void |
2614 | deep_copy_visitor::visit_print_format (print_format* e) | |
2615 | { | |
4b6455e8 | 2616 | update_visitor::visit_print_format(new print_format(*e)); |
d02548c0 GH |
2617 | } |
2618 | ||
2619 | void | |
2620 | deep_copy_visitor::visit_stat_op (stat_op* e) | |
2621 | { | |
4b6455e8 | 2622 | update_visitor::visit_stat_op(new stat_op(*e)); |
d02548c0 GH |
2623 | } |
2624 | ||
2625 | void | |
2626 | deep_copy_visitor::visit_hist_op (hist_op* e) | |
2627 | { | |
4b6455e8 | 2628 | update_visitor::visit_hist_op(new hist_op(*e)); |
edc22ba9 DB |
2629 | } |
2630 | ||
73267b89 | 2631 | /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ |