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Commit | Line | Data |
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56099f08 | 1 | // parse tree functions |
2363d2a5 | 2 | // Copyright (C) 2005-2011 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 | 12 | #include "util.h" |
313db8e6 | 13 | #include "session.h" |
72dbc915 | 14 | |
2f1a1aea | 15 | #include <iostream> |
56099f08 | 16 | #include <typeinfo> |
d02548c0 | 17 | #include <sstream> |
56099f08 | 18 | #include <cassert> |
b2199bb3 | 19 | #include <cstring> |
c3a3c0c9 | 20 | #include <vector> |
66e00001 | 21 | #include <algorithm> |
edc22ba9 | 22 | #include <cstring> |
2f1a1aea | 23 | |
2b066ec1 FCE |
24 | using namespace std; |
25 | ||
2f1a1aea | 26 | |
c1d5f3f6 | 27 | |
56099f08 FCE |
28 | expression::expression (): |
29 | type (pe_unknown), tok (0) | |
30 | { | |
dff50e09 | 31 | } |
56099f08 FCE |
32 | |
33 | ||
34 | expression::~expression () | |
35 | { | |
36 | } | |
37 | ||
38 | ||
39 | statement::statement (): | |
40 | tok (0) | |
41 | { | |
dff50e09 | 42 | } |
56099f08 FCE |
43 | |
44 | ||
f946b10f JS |
45 | statement::statement (const token* tok): |
46 | tok (tok) | |
47 | { | |
48 | } | |
49 | ||
50 | ||
51 | null_statement::null_statement (const token* tok): | |
52 | statement(tok) | |
53 | { | |
54 | } | |
55 | ||
56 | ||
56099f08 FCE |
57 | statement::~statement () |
58 | { | |
59 | } | |
60 | ||
61 | ||
62 | symbol::symbol (): | |
63 | referent (0) | |
64 | { | |
65 | } | |
66 | ||
67 | ||
68 | arrayindex::arrayindex (): | |
d02548c0 | 69 | base (0) |
56099f08 FCE |
70 | { |
71 | } | |
72 | ||
73 | ||
74 | functioncall::functioncall (): | |
75 | referent (0) | |
76 | { | |
77 | } | |
78 | ||
79 | ||
80 | symboldecl::symboldecl (): | |
a07a2c28 | 81 | tok (0), systemtap_v_conditional (0), |
56099f08 FCE |
82 | type (pe_unknown) |
83 | { | |
dff50e09 | 84 | } |
56099f08 FCE |
85 | |
86 | ||
87 | symboldecl::~symboldecl () | |
88 | { | |
89 | } | |
90 | ||
f1a0157a CW |
91 | probe_point::probe_point (std::vector<component*> const & comps): |
92 | components(comps), optional (false), sufficient (false), | |
80342244 | 93 | condition (0) |
a229fcd7 GH |
94 | { |
95 | } | |
56099f08 | 96 | |
1939ea32 FCE |
97 | // NB: shallow-copy of compoonents & condition! |
98 | probe_point::probe_point (const probe_point& pp): | |
f1a0157a | 99 | components(pp.components), optional (pp.optional), sufficient (pp.sufficient), |
1939ea32 FCE |
100 | condition (pp.condition) |
101 | { | |
102 | } | |
103 | ||
104 | ||
9c0c0e46 | 105 | probe_point::probe_point (): |
f1a0157a | 106 | optional (false), sufficient (false), condition (0) |
82919855 FCE |
107 | { |
108 | } | |
109 | ||
110 | ||
7977a734 FCE |
111 | unsigned probe::last_probeidx = 0; |
112 | ||
82919855 | 113 | probe::probe (): |
74fe61bc | 114 | body (0), tok (0), systemtap_v_conditional (0), privileged (false) |
9c0c0e46 | 115 | { |
aca66a36 | 116 | this->name = string ("probe_") + lex_cast(last_probeidx ++); |
9c0c0e46 FCE |
117 | } |
118 | ||
119 | ||
7977a734 FCE |
120 | // Copy constructor, but with overriding probe-point. To be used when |
121 | // mapping script-level probe points to another one, early during pass | |
122 | // 2. There should be no symbol resolution done yet. | |
123 | probe::probe(const probe& p, probe_point* l) | |
124 | { | |
125 | this->name = string ("probe_") + lex_cast(last_probeidx ++); | |
126 | this->tok = p.tok; | |
127 | this->locations.push_back(l); | |
128 | this->body = p.body; // NB: not needed to be copied yet; a later derived_probe will | |
129 | this->privileged = p.privileged; | |
a07a2c28 | 130 | this->systemtap_v_conditional = p.systemtap_v_conditional; |
7977a734 FCE |
131 | assert (p.locals.size() == 0); |
132 | assert (p.unused_locals.size() == 0); | |
133 | } | |
134 | ||
135 | ||
9c0c0e46 | 136 | probe_point::component::component (): |
74fe61bc | 137 | arg (0), tok(0) |
9c0c0e46 FCE |
138 | { |
139 | } | |
140 | ||
141 | ||
dff50e09 | 142 | probe_point::component::component (std::string const & f, literal * a): |
74fe61bc | 143 | functor(f), arg(a), tok(0) |
a229fcd7 GH |
144 | { |
145 | } | |
146 | ||
147 | ||
2b066ec1 | 148 | vardecl::vardecl (): |
74e6cc92 | 149 | arity_tok(0), arity (-1), maxsize(0), init(NULL), skip_init(false), wrap(false) |
56099f08 FCE |
150 | { |
151 | } | |
152 | ||
153 | ||
2b066ec1 | 154 | void |
58701b78 | 155 | vardecl::set_arity (int a, const token* t) |
56099f08 | 156 | { |
d98d459c GH |
157 | if (a < 0) |
158 | return; | |
8846477c | 159 | |
58701b78 | 160 | if (a == 0 && maxsize > 0) |
58a834b1 | 161 | throw semantic_error (_("inconsistent arity"), tok); |
8846477c | 162 | |
58701b78 JS |
163 | if (arity != a && arity >= 0) |
164 | { | |
58a834b1 LB |
165 | semantic_error err (_F("inconsistent arity (%s vs %d)", |
166 | lex_cast(arity).c_str(), a), t?:tok); | |
58701b78 | 167 | if (arity_tok) |
58a834b1 LB |
168 | err.chain = new semantic_error (_F("arity %s first inferred here", |
169 | lex_cast(arity).c_str()), arity_tok); | |
58701b78 JS |
170 | throw err; |
171 | } | |
172 | ||
8846477c FCE |
173 | if (arity != a) |
174 | { | |
58701b78 | 175 | arity_tok = t; |
8846477c FCE |
176 | arity = a; |
177 | index_types.resize (arity); | |
178 | for (int i=0; i<arity; i++) | |
179 | index_types[i] = pe_unknown; | |
180 | } | |
56099f08 FCE |
181 | } |
182 | ||
dff50e09 | 183 | bool |
313b2f74 GH |
184 | vardecl::compatible_arity (int a) |
185 | { | |
ef474d24 JS |
186 | if (a == 0 && maxsize > 0) |
187 | return false; | |
d98d459c | 188 | if (arity == -1 || a == -1) |
313b2f74 GH |
189 | return true; |
190 | return arity == a; | |
191 | } | |
192 | ||
56099f08 FCE |
193 | |
194 | functiondecl::functiondecl (): | |
59de45f1 | 195 | body (0), synthetic (false) |
56099f08 FCE |
196 | { |
197 | } | |
198 | ||
f8809d54 JS |
199 | void |
200 | functiondecl::join (systemtap_session& s) | |
201 | { | |
202 | if (!synthetic) | |
58a834b1 | 203 | throw semantic_error (_("internal error, joining a non-synthetic function"), tok); |
f8809d54 | 204 | if (!s.functions.insert (make_pair (name, this)).second) |
58a834b1 LB |
205 | throw semantic_error (_F("synthetic function '%s' conflicts with an existing function", |
206 | name.c_str()), tok); | |
f8809d54 JS |
207 | tok->location.file->functions.push_back (this); |
208 | } | |
209 | ||
56099f08 | 210 | |
9ea68eb9 | 211 | literal_number::literal_number (int64_t v, bool hex) |
56099f08 FCE |
212 | { |
213 | value = v; | |
9ea68eb9 | 214 | print_hex = hex; |
56099f08 FCE |
215 | type = pe_long; |
216 | } | |
217 | ||
2f1a1aea | 218 | |
56099f08 FCE |
219 | literal_string::literal_string (const string& v) |
220 | { | |
221 | value = v; | |
222 | type = pe_string; | |
223 | } | |
224 | ||
225 | ||
226 | ostream& | |
227 | operator << (ostream& o, const exp_type& e) | |
228 | { | |
229 | switch (e) | |
230 | { | |
231 | case pe_unknown: o << "unknown"; break; | |
232 | case pe_long: o << "long"; break; | |
233 | case pe_string: o << "string"; break; | |
234 | case pe_stats: o << "stats"; break; | |
235 | default: o << "???"; break; | |
236 | } | |
237 | return o; | |
238 | } | |
239 | ||
240 | ||
dc5a09fc | 241 | void |
5f36109e | 242 | target_symbol::assert_no_components(const std::string& tapset, bool pretty_ok) |
dc5a09fc JS |
243 | { |
244 | if (components.empty()) | |
245 | return; | |
246 | ||
247 | switch (components[0].type) | |
248 | { | |
5f36109e JS |
249 | case comp_literal_array_index: |
250 | case comp_expression_array_index: | |
58a834b1 LB |
251 | throw semantic_error(_F("%s variable '%s' may not be used as array", |
252 | tapset.c_str(), name.c_str()), components[0].tok); | |
5f36109e | 253 | case comp_struct_member: |
58a834b1 LB |
254 | throw semantic_error(_F("%s variable '%s' may not be used as a structure", |
255 | tapset.c_str(), name.c_str()), components[0].tok); | |
5f36109e JS |
256 | case comp_pretty_print: |
257 | if (!pretty_ok) | |
58a834b1 LB |
258 | throw semantic_error(_F("%s variable '%s' may not be pretty-printed", |
259 | tapset.c_str(), name.c_str()), components[0].tok); | |
5f36109e | 260 | return; |
dc5a09fc | 261 | default: |
58a834b1 LB |
262 | throw semantic_error (_F("invalid use of %s variable '%s'", |
263 | tapset.c_str(), name.c_str()), components[0].tok); | |
dc5a09fc JS |
264 | } |
265 | } | |
266 | ||
267 | ||
1af1e62d | 268 | void target_symbol::chain (const semantic_error &er) |
c69a87e0 | 269 | { |
1af1e62d JS |
270 | semantic_error* e = new semantic_error(er); |
271 | if (!e->tok1) | |
272 | e->tok1 = this->tok; | |
c69a87e0 FCE |
273 | assert (e->chain == 0); |
274 | e->chain = this->saved_conversion_error; | |
275 | this->saved_conversion_error = e; | |
276 | } | |
277 | ||
278 | ||
56099f08 FCE |
279 | // ------------------------------------------------------------------------ |
280 | // parse tree printing | |
281 | ||
cc9ee605 | 282 | ostream& operator << (ostream& o, const expression& k) |
56099f08 FCE |
283 | { |
284 | k.print (o); | |
285 | return o; | |
286 | } | |
287 | ||
288 | ||
cc9ee605 | 289 | void literal_string::print (ostream& o) const |
56099f08 | 290 | { |
cc9ee605 FCE |
291 | o << '"'; |
292 | for (unsigned i=0; i<value.size(); i++) | |
293 | if (value[i] == '"') // or other escapeworthy characters? | |
294 | o << '\\' << '"'; | |
295 | else | |
296 | o << value[i]; | |
297 | o << '"'; | |
56099f08 FCE |
298 | } |
299 | ||
f3c26ea5 | 300 | |
cc9ee605 | 301 | void literal_number::print (ostream& o) const |
56099f08 | 302 | { |
9ea68eb9 JS |
303 | if (print_hex) |
304 | o << hex << showbase; | |
56099f08 | 305 | o << value; |
9ea68eb9 JS |
306 | if (print_hex) |
307 | o << dec << noshowbase; | |
56099f08 FCE |
308 | } |
309 | ||
310 | ||
7d902887 FCE |
311 | void embedded_expr::print (ostream& o) const |
312 | { | |
313 | o << "%{ " << code << " %}"; | |
314 | } | |
315 | ||
316 | ||
cc9ee605 | 317 | void binary_expression::print (ostream& o) const |
56099f08 | 318 | { |
dff50e09 FCE |
319 | o << "(" << *left << ") " |
320 | << op | |
a9c62ac9 | 321 | << " (" << *right << ")"; |
56099f08 | 322 | } |
2f1a1aea FCE |
323 | |
324 | ||
cc9ee605 | 325 | void unary_expression::print (ostream& o) const |
2f1a1aea | 326 | { |
dff50e09 | 327 | o << op << '(' << *operand << ")"; |
56099f08 FCE |
328 | } |
329 | ||
cc9ee605 | 330 | void array_in::print (ostream& o) const |
69c68955 FCE |
331 | { |
332 | o << "["; | |
333 | for (unsigned i=0; i<operand->indexes.size(); i++) | |
334 | { | |
335 | if (i > 0) o << ", "; | |
336 | operand->indexes[i]->print (o); | |
337 | } | |
a9c62ac9 FCE |
338 | o << "] in "; |
339 | operand->base->print_indexable (o); | |
69c68955 | 340 | } |
56099f08 | 341 | |
cc9ee605 | 342 | void post_crement::print (ostream& o) const |
56099f08 | 343 | { |
dff50e09 | 344 | o << '(' << *operand << ")" << op; |
56099f08 FCE |
345 | } |
346 | ||
347 | ||
cc9ee605 | 348 | void ternary_expression::print (ostream& o) const |
56099f08 | 349 | { |
ae56fddd FCE |
350 | o << "(" << *cond << ")?(" |
351 | << *truevalue << "):(" | |
dff50e09 | 352 | << *falsevalue << ")"; |
56099f08 FCE |
353 | } |
354 | ||
355 | ||
cc9ee605 | 356 | void symbol::print (ostream& o) const |
56099f08 FCE |
357 | { |
358 | o << name; | |
359 | } | |
360 | ||
361 | ||
c67847a0 JS |
362 | void target_symbol::component::print (ostream& o) const |
363 | { | |
364 | switch (type) | |
365 | { | |
5f36109e | 366 | case comp_pretty_print: |
c67847a0 JS |
367 | case comp_struct_member: |
368 | o << "->" << member; | |
369 | break; | |
370 | case comp_literal_array_index: | |
371 | o << '[' << num_index << ']'; | |
372 | break; | |
6fda2dff JS |
373 | case comp_expression_array_index: |
374 | o << '[' << *expr_index << ']'; | |
375 | break; | |
c67847a0 JS |
376 | } |
377 | } | |
378 | ||
379 | ||
380 | std::ostream& operator << (std::ostream& o, const target_symbol::component& c) | |
381 | { | |
382 | c.print (o); | |
383 | return o; | |
384 | } | |
385 | ||
386 | ||
8eb285ac | 387 | void target_symbol::print (ostream& o) const |
d7f3e0c5 | 388 | { |
03c75a4a JS |
389 | if (addressof) |
390 | o << "&"; | |
277c21bc | 391 | o << name; |
d7f3e0c5 | 392 | for (unsigned i = 0; i < components.size(); ++i) |
c67847a0 | 393 | o << components[i]; |
d7f3e0c5 GH |
394 | } |
395 | ||
396 | ||
8eb285ac | 397 | void cast_op::print (ostream& o) const |
9b5af295 | 398 | { |
03c75a4a JS |
399 | if (addressof) |
400 | o << "&"; | |
277c21bc | 401 | o << name << '(' << *operand; |
7f6b80bd | 402 | o << ", " << lex_cast_qstring (type_name); |
9b5af295 JS |
403 | if (module.length() > 0) |
404 | o << ", " << lex_cast_qstring (module); | |
405 | o << ')'; | |
406 | for (unsigned i = 0; i < components.size(); ++i) | |
c67847a0 | 407 | o << components[i]; |
9b5af295 JS |
408 | } |
409 | ||
410 | ||
30263a73 FCE |
411 | void defined_op::print (ostream& o) const |
412 | { | |
413 | o << "@defined(" << *operand << ")"; | |
414 | } | |
415 | ||
416 | ||
8cc799a5 JS |
417 | void entry_op::print (ostream& o) const |
418 | { | |
419 | o << "@entry(" << *operand << ")"; | |
420 | } | |
421 | ||
422 | ||
cc9ee605 | 423 | void vardecl::print (ostream& o) const |
56099f08 FCE |
424 | { |
425 | o << name; | |
74e6cc92 CM |
426 | if(wrap) |
427 | o << "%"; | |
ef474d24 JS |
428 | if (maxsize > 0) |
429 | o << "[" << maxsize << "]"; | |
bed7c0af | 430 | if (arity > 0 || index_types.size() > 0) |
56099f08 | 431 | o << "[...]"; |
9ba8c134 JS |
432 | if (init) |
433 | { | |
434 | o << " = "; | |
435 | init->print(o); | |
436 | } | |
56099f08 FCE |
437 | } |
438 | ||
2f1a1aea | 439 | |
cc9ee605 | 440 | void vardecl::printsig (ostream& o) const |
56099f08 | 441 | { |
ef474d24 | 442 | o << name; |
74e6cc92 CM |
443 | if(wrap) |
444 | o << "%"; | |
ef474d24 JS |
445 | if (maxsize > 0) |
446 | o << "[" << maxsize << "]"; | |
447 | o << ":" << type; | |
56099f08 | 448 | if (index_types.size() > 0) |
2f1a1aea | 449 | { |
56099f08 FCE |
450 | o << " ["; |
451 | for (unsigned i=0; i<index_types.size(); i++) | |
452 | o << (i>0 ? ", " : "") << index_types[i]; | |
453 | o << "]"; | |
454 | } | |
455 | } | |
456 | ||
457 | ||
cc9ee605 | 458 | void functiondecl::print (ostream& o) const |
56099f08 FCE |
459 | { |
460 | o << "function " << name << " ("; | |
461 | for (unsigned i=0; i<formal_args.size(); i++) | |
462 | o << (i>0 ? ", " : "") << *formal_args[i]; | |
463 | o << ")" << endl; | |
464 | body->print(o); | |
465 | } | |
466 | ||
467 | ||
cc9ee605 | 468 | void functiondecl::printsig (ostream& o) const |
56099f08 FCE |
469 | { |
470 | o << name << ":" << type << " ("; | |
471 | for (unsigned i=0; i<formal_args.size(); i++) | |
472 | o << (i>0 ? ", " : "") | |
473 | << *formal_args[i] | |
474 | << ":" | |
475 | << formal_args[i]->type; | |
476 | o << ")"; | |
477 | } | |
478 | ||
479 | ||
cc9ee605 | 480 | void arrayindex::print (ostream& o) const |
56099f08 | 481 | { |
a9c62ac9 FCE |
482 | base->print_indexable (o); |
483 | o << "["; | |
56099f08 FCE |
484 | for (unsigned i=0; i<indexes.size(); i++) |
485 | o << (i>0 ? ", " : "") << *indexes[i]; | |
486 | o << "]"; | |
487 | } | |
488 | ||
489 | ||
cc9ee605 | 490 | void functioncall::print (ostream& o) const |
56099f08 FCE |
491 | { |
492 | o << function << "("; | |
493 | for (unsigned i=0; i<args.size(); i++) | |
494 | o << (i>0 ? ", " : "") << *args[i]; | |
495 | o << ")"; | |
dff50e09 | 496 | } |
56099f08 FCE |
497 | |
498 | ||
d5e178c1 JS |
499 | print_format* |
500 | print_format::create(const token *t) | |
3cb17058 | 501 | { |
d5e178c1 JS |
502 | bool stream, format, delim, newline, _char; |
503 | const char *n = t->content.c_str(); | |
3cb17058 JS |
504 | |
505 | stream = true; | |
32784362 MH |
506 | format = delim = newline = _char = false; |
507 | ||
508 | if (strcmp(n, "print_char") == 0) | |
d5e178c1 | 509 | _char = true; |
3cb17058 JS |
510 | else |
511 | { | |
d5e178c1 JS |
512 | if (*n == 's') |
513 | { | |
514 | stream = false; | |
3cb17058 JS |
515 | ++n; |
516 | } | |
517 | ||
d5e178c1 JS |
518 | if (0 != strncmp(n, "print", 5)) |
519 | return NULL; | |
520 | n += 5; | |
521 | ||
522 | if (*n == 'f') | |
523 | { | |
524 | format = true; | |
525 | ++n; | |
526 | } | |
527 | else | |
528 | { | |
529 | if (*n == 'd') | |
530 | { | |
531 | delim = true; | |
532 | ++n; | |
533 | } | |
534 | ||
535 | if (*n == 'l' && *(n+1) == 'n') | |
536 | { | |
537 | newline = true; | |
538 | n += 2; | |
539 | } | |
3cb17058 | 540 | } |
d5e178c1 JS |
541 | |
542 | if (*n != '\0') | |
543 | return NULL; | |
3cb17058 JS |
544 | } |
545 | ||
d5e178c1 JS |
546 | print_format *pf = new print_format(stream, format, delim, newline, _char); |
547 | pf->tok = t; | |
548 | return pf; | |
3cb17058 JS |
549 | } |
550 | ||
551 | ||
dff50e09 | 552 | string |
d02548c0 GH |
553 | print_format::components_to_string(vector<format_component> const & components) |
554 | { | |
555 | ostringstream oss; | |
556 | ||
557 | for (vector<format_component>::const_iterator i = components.begin(); | |
558 | i != components.end(); ++i) | |
559 | { | |
560 | ||
561 | assert (i->type != conv_unspecified); | |
562 | ||
563 | if (i->type == conv_literal) | |
564 | { | |
565 | assert(!i->literal_string.empty()); | |
566 | for (string::const_iterator j = i->literal_string.begin(); | |
567 | j != i->literal_string.end(); ++j) | |
568 | { | |
c4bb5be2 | 569 | // See also: c_unparser::visit_literal_string and lex_cast_qstring |
d02548c0 GH |
570 | if (*j == '%') |
571 | oss << '%'; | |
c4bb5be2 FCE |
572 | else if(*j == '"') |
573 | oss << '\\'; | |
d02548c0 GH |
574 | oss << *j; |
575 | } | |
576 | } | |
577 | else | |
578 | { | |
579 | oss << '%'; | |
580 | ||
929eb962 | 581 | if (i->test_flag (fmt_flag_zeropad)) |
d02548c0 GH |
582 | oss << '0'; |
583 | ||
929eb962 | 584 | if (i->test_flag (fmt_flag_plus)) |
d02548c0 GH |
585 | oss << '+'; |
586 | ||
929eb962 | 587 | if (i->test_flag (fmt_flag_space)) |
d02548c0 GH |
588 | oss << ' '; |
589 | ||
929eb962 | 590 | if (i->test_flag (fmt_flag_left)) |
d02548c0 GH |
591 | oss << '-'; |
592 | ||
929eb962 | 593 | if (i->test_flag (fmt_flag_special)) |
d02548c0 GH |
594 | oss << '#'; |
595 | ||
34201621 DB |
596 | if (i->widthtype == width_dynamic) |
597 | oss << '*'; | |
598 | else if (i->widthtype != width_unspecified && i->width > 0) | |
d02548c0 GH |
599 | oss << i->width; |
600 | ||
34201621 DB |
601 | if (i->prectype == prec_dynamic) |
602 | oss << ".*"; | |
603 | else if (i->prectype != prec_unspecified && i->precision > 0) | |
d02548c0 GH |
604 | oss << '.' << i->precision; |
605 | ||
dff50e09 | 606 | switch (i->type) |
dc0b623a MH |
607 | { |
608 | case conv_binary: | |
609 | oss << "b"; | |
610 | break; | |
611 | ||
fecccf83 EB |
612 | case conv_char: |
613 | oss << "llc"; | |
614 | break; | |
615 | ||
929eb962 JS |
616 | case conv_number: |
617 | if (i->base == 16) | |
618 | { | |
619 | if (i->test_flag (fmt_flag_large)) | |
620 | oss << "llX"; | |
621 | else | |
622 | oss << "llx"; | |
623 | } | |
624 | else if (i->base == 8) | |
625 | oss << "llo"; | |
626 | else if (i->test_flag (fmt_flag_sign)) | |
627 | oss << "lld"; | |
628 | else | |
629 | oss << "llu"; | |
d02548c0 GH |
630 | break; |
631 | ||
929eb962 | 632 | case conv_pointer: |
58cf0567 MH |
633 | oss << "p"; |
634 | break; | |
635 | ||
d02548c0 GH |
636 | case conv_string: |
637 | oss << 's'; | |
638 | break; | |
dff50e09 | 639 | |
34201621 DB |
640 | case conv_memory: |
641 | oss << 'm'; | |
642 | break; | |
dff50e09 | 643 | |
30c94a80 EB |
644 | case conv_memory_hex: |
645 | oss << 'M'; | |
646 | break; | |
647 | ||
d02548c0 GH |
648 | default: |
649 | break; | |
650 | } | |
651 | } | |
652 | } | |
653 | return oss.str (); | |
654 | } | |
dff50e09 FCE |
655 | |
656 | vector<print_format::format_component> | |
d02548c0 GH |
657 | print_format::string_to_components(string const & str) |
658 | { | |
659 | format_component curr; | |
660 | vector<format_component> res; | |
661 | ||
d02548c0 GH |
662 | curr.clear(); |
663 | ||
664 | string::const_iterator i = str.begin(); | |
dff50e09 | 665 | |
d02548c0 GH |
666 | while (i != str.end()) |
667 | { | |
07c17d67 | 668 | if (*i != '%') |
d02548c0 | 669 | { |
07c17d67 GH |
670 | assert (curr.type == conv_unspecified || curr.type == conv_literal); |
671 | curr.type = conv_literal; | |
dc0b623a | 672 | curr.literal_string += *i; |
d02548c0 | 673 | ++i; |
07c17d67 GH |
674 | continue; |
675 | } | |
676 | else if (i+1 == str.end() || *(i+1) == '%') | |
677 | { | |
678 | assert(*i == '%'); | |
679 | // *i == '%' and *(i+1) == '%'; append only one '%' to the literal string | |
680 | assert (curr.type == conv_unspecified || curr.type == conv_literal); | |
681 | curr.type = conv_literal; | |
682 | curr.literal_string += '%'; | |
2a99f48f | 683 | i += 2; |
07c17d67 GH |
684 | continue; |
685 | } | |
dff50e09 | 686 | else |
07c17d67 GH |
687 | { |
688 | assert(*i == '%'); | |
689 | if (curr.type != conv_unspecified) | |
d02548c0 | 690 | { |
07c17d67 GH |
691 | // Flush any component we were previously accumulating |
692 | assert (curr.type == conv_literal); | |
693 | res.push_back(curr); | |
694 | curr.clear(); | |
695 | } | |
696 | } | |
697 | ++i; | |
dff50e09 | 698 | |
07c17d67 GH |
699 | if (i == str.end()) |
700 | break; | |
d02548c0 | 701 | |
dff50e09 | 702 | // Now we are definitely parsing a conversion. |
d898100a | 703 | // Begin by parsing flags (which are optional). |
d02548c0 | 704 | |
07c17d67 GH |
705 | switch (*i) |
706 | { | |
707 | case '0': | |
929eb962 | 708 | curr.set_flag (fmt_flag_zeropad); |
07c17d67 | 709 | ++i; |
d02548c0 | 710 | break; |
dff50e09 | 711 | |
07c17d67 | 712 | case '+': |
929eb962 | 713 | curr.set_flag (fmt_flag_plus); |
07c17d67 | 714 | ++i; |
d02548c0 | 715 | break; |
dff50e09 | 716 | |
07c17d67 | 717 | case '-': |
929eb962 | 718 | curr.set_flag (fmt_flag_left); |
07c17d67 | 719 | ++i; |
d02548c0 | 720 | break; |
dff50e09 | 721 | |
07c17d67 | 722 | case ' ': |
929eb962 | 723 | curr.set_flag (fmt_flag_space); |
07c17d67 GH |
724 | ++i; |
725 | break; | |
dff50e09 | 726 | |
07c17d67 | 727 | case '#': |
929eb962 | 728 | curr.set_flag (fmt_flag_special); |
07c17d67 GH |
729 | ++i; |
730 | break; | |
dc0b623a | 731 | |
07c17d67 GH |
732 | default: |
733 | break; | |
734 | } | |
d02548c0 | 735 | |
34201621 DB |
736 | if (i == str.end()) |
737 | break; | |
738 | ||
07c17d67 | 739 | // Parse optional width |
34201621 | 740 | if (*i == '*') |
07c17d67 | 741 | { |
34201621 | 742 | curr.widthtype = width_dynamic; |
07c17d67 GH |
743 | ++i; |
744 | } | |
34201621 DB |
745 | else if (isdigit(*i)) |
746 | { | |
747 | curr.widthtype = width_static; | |
748 | curr.width = 0; | |
749 | do | |
750 | { | |
751 | curr.width *= 10; | |
752 | curr.width += (*i - '0'); | |
753 | ++i; | |
754 | } | |
755 | while (i != str.end() && isdigit(*i)); | |
756 | } | |
d02548c0 | 757 | |
07c17d67 GH |
758 | if (i == str.end()) |
759 | break; | |
d02548c0 | 760 | |
07c17d67 GH |
761 | // Parse optional precision |
762 | if (*i == '.') | |
763 | { | |
764 | ++i; | |
765 | if (i == str.end()) | |
766 | break; | |
34201621 | 767 | if (*i == '*') |
07c17d67 | 768 | { |
34201621 | 769 | curr.prectype = prec_dynamic; |
d02548c0 | 770 | ++i; |
07c17d67 | 771 | } |
34201621 DB |
772 | else if (isdigit(*i)) |
773 | { | |
774 | curr.prectype = prec_static; | |
775 | curr.precision = 0; | |
776 | do | |
777 | { | |
778 | curr.precision *= 10; | |
779 | curr.precision += (*i - '0'); | |
780 | ++i; | |
781 | } | |
782 | while (i != str.end() && isdigit(*i)); | |
783 | } | |
07c17d67 | 784 | } |
d02548c0 | 785 | |
ab6d14de SC |
786 | if (i == str.end()) |
787 | break; | |
788 | ||
789 | // Parse the type modifier | |
790 | switch (*i) | |
791 | { | |
792 | case 'l': | |
793 | ++i; | |
794 | break; | |
795 | } | |
796 | ||
07c17d67 GH |
797 | if (i == str.end()) |
798 | break; | |
d02548c0 | 799 | |
fecccf83 | 800 | // Parse the actual conversion specifier (bcsmdioupxXn) |
07c17d67 GH |
801 | switch (*i) |
802 | { | |
803 | // Valid conversion types | |
dc0b623a MH |
804 | case 'b': |
805 | curr.type = conv_binary; | |
806 | break; | |
dff50e09 | 807 | |
fecccf83 EB |
808 | case 'c': |
809 | curr.type = conv_char; | |
810 | break; | |
811 | ||
07c17d67 GH |
812 | case 's': |
813 | curr.type = conv_string; | |
814 | break; | |
dff50e09 | 815 | |
34201621 DB |
816 | case 'm': |
817 | curr.type = conv_memory; | |
818 | break; | |
dff50e09 | 819 | |
30c94a80 EB |
820 | case 'M': |
821 | curr.type = conv_memory_hex; | |
822 | break; | |
823 | ||
07c17d67 GH |
824 | case 'd': |
825 | case 'i': | |
929eb962 | 826 | curr.set_flag (fmt_flag_sign); |
07c17d67 | 827 | case 'u': |
929eb962 JS |
828 | curr.type = conv_number; |
829 | curr.base = 10; | |
07c17d67 | 830 | break; |
dff50e09 | 831 | |
929eb962 JS |
832 | case 'o': |
833 | curr.type = conv_number; | |
834 | curr.base = 8; | |
58cf0567 MH |
835 | break; |
836 | ||
07c17d67 | 837 | case 'X': |
929eb962 JS |
838 | curr.set_flag (fmt_flag_large); |
839 | case 'x': | |
840 | curr.type = conv_number; | |
841 | curr.base = 16; | |
07c17d67 | 842 | break; |
dff50e09 | 843 | |
929eb962 JS |
844 | case 'p': |
845 | // Since stap 1.3, %p == %#x. | |
846 | curr.set_flag (fmt_flag_special); | |
847 | curr.type = conv_pointer; | |
848 | curr.base = 16; | |
849 | // Oddness for stap < 1.3 is handled in translation | |
07c17d67 | 850 | break; |
dc0b623a | 851 | |
07c17d67 | 852 | default: |
d02548c0 GH |
853 | break; |
854 | } | |
dff50e09 | 855 | |
07c17d67 | 856 | if (curr.type == conv_unspecified) |
58a834b1 | 857 | throw parse_error(_("invalid or missing conversion specifier")); |
dff50e09 | 858 | |
07c17d67 | 859 | ++i; |
dc0b623a | 860 | res.push_back(curr); |
dff50e09 | 861 | curr.clear(); |
d02548c0 GH |
862 | } |
863 | ||
07c17d67 GH |
864 | // If there's a remaining partly-composed conversion, fail. |
865 | if (!curr.is_empty()) | |
866 | { | |
867 | if (curr.type == conv_literal) | |
dff50e09 | 868 | res.push_back(curr); |
07c17d67 | 869 | else |
58a834b1 | 870 | throw parse_error(_("trailing incomplete print format conversion")); |
07c17d67 | 871 | } |
d02548c0 GH |
872 | |
873 | return res; | |
874 | } | |
875 | ||
876 | ||
877 | void print_format::print (ostream& o) const | |
878 | { | |
3cb17058 | 879 | o << tok->content << "("; |
d02548c0 | 880 | if (print_with_format) |
3cb17058 JS |
881 | o << lex_cast_qstring (raw_components); |
882 | if (print_with_delim) | |
883 | o << lex_cast_qstring (delimiter.literal_string); | |
a9c62ac9 FCE |
884 | if (hist) |
885 | hist->print(o); | |
d02548c0 GH |
886 | for (vector<expression*>::const_iterator i = args.begin(); |
887 | i != args.end(); ++i) | |
888 | { | |
3cb17058 | 889 | if (i != args.begin() || print_with_format || print_with_delim) |
d02548c0 GH |
890 | o << ", "; |
891 | (*i)->print(o); | |
892 | } | |
893 | o << ")"; | |
894 | } | |
895 | ||
896 | void stat_op::print (ostream& o) const | |
897 | { | |
898 | o << '@'; | |
899 | switch (ctype) | |
900 | { | |
901 | case sc_average: | |
902 | o << "avg("; | |
903 | break; | |
904 | ||
905 | case sc_count: | |
906 | o << "count("; | |
907 | break; | |
908 | ||
909 | case sc_sum: | |
910 | o << "sum("; | |
911 | break; | |
912 | ||
913 | case sc_min: | |
914 | o << "min("; | |
915 | break; | |
dff50e09 | 916 | |
d02548c0 GH |
917 | case sc_max: |
918 | o << "max("; | |
919 | break; | |
920 | } | |
921 | stat->print(o); | |
922 | o << ")"; | |
923 | } | |
924 | ||
dff50e09 | 925 | void |
d02548c0 GH |
926 | hist_op::print (ostream& o) const |
927 | { | |
928 | o << '@'; | |
929 | switch (htype) | |
930 | { | |
931 | case hist_linear: | |
932 | assert(params.size() == 3); | |
933 | o << "hist_linear("; | |
934 | stat->print(o); | |
935 | for (size_t i = 0; i < params.size(); ++i) | |
936 | { | |
937 | o << ", " << params[i]; | |
938 | } | |
939 | o << ")"; | |
940 | break; | |
941 | ||
942 | case hist_log: | |
e38723d2 | 943 | assert(params.size() == 0); |
d02548c0 GH |
944 | o << "hist_log("; |
945 | stat->print(o); | |
d02548c0 GH |
946 | o << ")"; |
947 | break; | |
948 | } | |
949 | } | |
950 | ||
cc9ee605 | 951 | ostream& operator << (ostream& o, const statement& k) |
56099f08 FCE |
952 | { |
953 | k.print (o); | |
954 | return o; | |
955 | } | |
956 | ||
957 | ||
cc9ee605 | 958 | void embeddedcode::print (ostream &o) const |
54dfabe9 FCE |
959 | { |
960 | o << "%{"; | |
961 | o << code; | |
962 | o << "%}"; | |
963 | } | |
964 | ||
cc9ee605 | 965 | void block::print (ostream& o) const |
56099f08 FCE |
966 | { |
967 | o << "{" << endl; | |
968 | for (unsigned i=0; i<statements.size(); i++) | |
69c68955 | 969 | o << *statements [i] << endl; |
bb2e3076 | 970 | o << "}"; |
56099f08 FCE |
971 | } |
972 | ||
ba6f838d FCE |
973 | block::block (statement* car, statement* cdr) |
974 | { | |
975 | statements.push_back(car); | |
976 | statements.push_back(cdr); | |
977 | this->tok = car->tok; | |
978 | } | |
979 | ||
980 | ||
56099f08 | 981 | |
f4fe2e93 FCE |
982 | void try_block::print (ostream& o) const |
983 | { | |
984 | o << "try {" << endl; | |
985 | if (try_block) o << *try_block << endl; | |
986 | o << "} catch "; | |
987 | if (catch_error_var) o << "(" << *catch_error_var << ") "; | |
988 | o << "{" << endl; | |
989 | if (catch_block) o << *catch_block << endl; | |
990 | o << "}" << endl; | |
991 | } | |
992 | ||
993 | ||
cc9ee605 | 994 | void for_loop::print (ostream& o) const |
56099f08 | 995 | { |
f3c26ea5 | 996 | o << "for ("; |
cbfbbf69 | 997 | if (init) init->print (o); |
f3c26ea5 FCE |
998 | o << "; "; |
999 | cond->print (o); | |
1000 | o << "; "; | |
cbfbbf69 | 1001 | if (incr) incr->print (o); |
bb2e3076 | 1002 | o << ") "; |
f3c26ea5 | 1003 | block->print (o); |
56099f08 FCE |
1004 | } |
1005 | ||
1006 | ||
cc9ee605 | 1007 | void foreach_loop::print (ostream& o) const |
69c68955 | 1008 | { |
c261711d JS |
1009 | o << "foreach ("; |
1010 | if (value) | |
1011 | { | |
1012 | value->print (o); | |
1013 | o << " = "; | |
1014 | } | |
1015 | o << "["; | |
69c68955 FCE |
1016 | for (unsigned i=0; i<indexes.size(); i++) |
1017 | { | |
1018 | if (i > 0) o << ", "; | |
1019 | indexes[i]->print (o); | |
93484556 FCE |
1020 | if (sort_direction != 0 && sort_column == i+1) |
1021 | o << (sort_direction > 0 ? "+" : "-"); | |
69c68955 | 1022 | } |
a9c62ac9 FCE |
1023 | o << "] in "; |
1024 | base->print_indexable (o); | |
93484556 FCE |
1025 | if (sort_direction != 0 && sort_column == 0) |
1026 | o << (sort_direction > 0 ? "+" : "-"); | |
27f21e8c DS |
1027 | if (limit) |
1028 | { | |
1029 | o << " limit "; | |
1030 | limit->print (o); | |
1031 | } | |
93484556 | 1032 | o << ") "; |
69c68955 FCE |
1033 | block->print (o); |
1034 | } | |
1035 | ||
1036 | ||
cc9ee605 | 1037 | void null_statement::print (ostream& o) const |
56099f08 | 1038 | { |
dff50e09 | 1039 | o << ";"; |
56099f08 FCE |
1040 | } |
1041 | ||
1042 | ||
cc9ee605 | 1043 | void expr_statement::print (ostream& o) const |
56099f08 FCE |
1044 | { |
1045 | o << *value; | |
1046 | } | |
1047 | ||
1048 | ||
cc9ee605 | 1049 | void return_statement::print (ostream& o) const |
56099f08 FCE |
1050 | { |
1051 | o << "return " << *value; | |
1052 | } | |
1053 | ||
1054 | ||
cc9ee605 | 1055 | void delete_statement::print (ostream& o) const |
56099f08 FCE |
1056 | { |
1057 | o << "delete " << *value; | |
1058 | } | |
1059 | ||
cc9ee605 | 1060 | void next_statement::print (ostream& o) const |
f3c26ea5 FCE |
1061 | { |
1062 | o << "next"; | |
1063 | } | |
1064 | ||
cc9ee605 | 1065 | void break_statement::print (ostream& o) const |
f3c26ea5 FCE |
1066 | { |
1067 | o << "break"; | |
1068 | } | |
1069 | ||
cc9ee605 | 1070 | void continue_statement::print (ostream& o) const |
f3c26ea5 FCE |
1071 | { |
1072 | o << "continue"; | |
1073 | } | |
56099f08 | 1074 | |
cc9ee605 | 1075 | void if_statement::print (ostream& o) const |
56099f08 | 1076 | { |
bb2e3076 | 1077 | o << "if (" << *condition << ") " |
56099f08 FCE |
1078 | << *thenblock << endl; |
1079 | if (elseblock) | |
1080 | o << "else " << *elseblock << endl; | |
1081 | } | |
1082 | ||
1083 | ||
cc9ee605 | 1084 | void stapfile::print (ostream& o) const |
56099f08 FCE |
1085 | { |
1086 | o << "# file " << name << endl; | |
1087 | ||
54dfabe9 FCE |
1088 | for (unsigned i=0; i<embeds.size(); i++) |
1089 | embeds[i]->print (o); | |
1090 | ||
bed7c0af FCE |
1091 | for (unsigned i=0; i<globals.size(); i++) |
1092 | { | |
1093 | o << "global "; | |
1094 | globals[i]->print (o); | |
1095 | o << endl; | |
1096 | } | |
1097 | ||
20c6c071 GH |
1098 | for (unsigned i=0; i<aliases.size(); i++) |
1099 | { | |
1100 | aliases[i]->print (o); | |
1101 | o << endl; | |
1102 | } | |
1103 | ||
bed7c0af | 1104 | for (unsigned i=0; i<probes.size(); i++) |
56099f08 FCE |
1105 | { |
1106 | probes[i]->print (o); | |
1107 | o << endl; | |
1108 | } | |
1109 | ||
1110 | for (unsigned j = 0; j < functions.size(); j++) | |
1111 | { | |
1112 | functions[j]->print (o); | |
1113 | o << endl; | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | ||
cc9ee605 | 1118 | void probe::print (ostream& o) const |
56099f08 FCE |
1119 | { |
1120 | o << "probe "; | |
40a1cb62 FCE |
1121 | printsig (o); |
1122 | o << *body; | |
1123 | } | |
1124 | ||
1125 | ||
cc9ee605 | 1126 | void probe::printsig (ostream& o) const |
40a1cb62 | 1127 | { |
77b2151e DB |
1128 | const probe_alias *alias = get_alias (); |
1129 | if (alias) | |
1130 | { | |
1131 | alias->printsig (o); | |
1132 | return; | |
1133 | } | |
dff50e09 | 1134 | |
9c0c0e46 | 1135 | for (unsigned i=0; i<locations.size(); i++) |
56099f08 | 1136 | { |
65aeaea0 | 1137 | if (i > 0) o << ","; |
9c0c0e46 | 1138 | locations[i]->print (o); |
56099f08 | 1139 | } |
56099f08 FCE |
1140 | } |
1141 | ||
1142 | ||
c3a3c0c9 | 1143 | void |
2c5a19c6 | 1144 | probe::collect_derivation_chain (std::vector<probe*> &probes_list) |
c3a3c0c9 | 1145 | { |
2c5a19c6 | 1146 | probes_list.push_back(this); |
c3a3c0c9 WC |
1147 | } |
1148 | ||
1149 | ||
37ae3931 | 1150 | void probe_point::print (ostream& o, bool print_extras) const |
56099f08 | 1151 | { |
9c0c0e46 FCE |
1152 | for (unsigned i=0; i<components.size(); i++) |
1153 | { | |
1154 | if (i>0) o << "."; | |
1155 | probe_point::component* c = components[i]; | |
1156 | o << c->functor; | |
1157 | if (c->arg) | |
1158 | o << "(" << *c->arg << ")"; | |
1159 | } | |
37ae3931 JS |
1160 | if (!print_extras) |
1161 | return; | |
d898100a FCE |
1162 | if (sufficient) |
1163 | o << "!"; | |
1164 | else if (optional) // sufficient implies optional | |
6e3347a9 | 1165 | o << "?"; |
cbbe8080 MH |
1166 | if (condition) |
1167 | o<< " if (" << *condition << ")"; | |
c3a3c0c9 WC |
1168 | } |
1169 | ||
37ae3931 | 1170 | string probe_point::str (bool print_extras) const |
c3a3c0c9 WC |
1171 | { |
1172 | ostringstream o; | |
37ae3931 | 1173 | print(o, print_extras); |
c3a3c0c9 | 1174 | return o.str(); |
56099f08 FCE |
1175 | } |
1176 | ||
cc9ee605 | 1177 | |
20c6c071 | 1178 | probe_alias::probe_alias(std::vector<probe_point*> const & aliases): |
74fe61bc | 1179 | probe (), alias_names (aliases), epilogue_style(false) |
20c6c071 GH |
1180 | { |
1181 | } | |
1182 | ||
cc9ee605 | 1183 | void probe_alias::printsig (ostream& o) const |
20c6c071 GH |
1184 | { |
1185 | for (unsigned i=0; i<alias_names.size(); i++) | |
1186 | { | |
1187 | o << (i>0 ? " = " : ""); | |
1188 | alias_names[i]->print (o); | |
1189 | } | |
5227f1ea | 1190 | o << " = "; |
20c6c071 GH |
1191 | for (unsigned i=0; i<locations.size(); i++) |
1192 | { | |
d898100a | 1193 | if (i > 0) o << ", "; |
20c6c071 GH |
1194 | locations[i]->print (o); |
1195 | } | |
1196 | } | |
1197 | ||
56099f08 | 1198 | |
cc9ee605 | 1199 | ostream& operator << (ostream& o, const probe_point& k) |
82919855 FCE |
1200 | { |
1201 | k.print (o); | |
1202 | return o; | |
1203 | } | |
1204 | ||
1205 | ||
cc9ee605 | 1206 | ostream& operator << (ostream& o, const symboldecl& k) |
56099f08 FCE |
1207 | { |
1208 | k.print (o); | |
1209 | return o; | |
1210 | } | |
1211 | ||
1212 | ||
82919855 FCE |
1213 | |
1214 | // ------------------------------------------------------------------------ | |
1215 | // visitors | |
1216 | ||
1217 | ||
1218 | void | |
1219 | block::visit (visitor* u) | |
1220 | { | |
1221 | u->visit_block (this); | |
1222 | } | |
1223 | ||
54dfabe9 | 1224 | |
f4fe2e93 FCE |
1225 | void |
1226 | try_block::visit (visitor* u) | |
1227 | { | |
1228 | u->visit_try_block (this); | |
1229 | } | |
1230 | ||
1231 | ||
54dfabe9 FCE |
1232 | void |
1233 | embeddedcode::visit (visitor* u) | |
1234 | { | |
1235 | u->visit_embeddedcode (this); | |
1236 | } | |
1237 | ||
1238 | ||
82919855 FCE |
1239 | void |
1240 | for_loop::visit (visitor* u) | |
1241 | { | |
1242 | u->visit_for_loop (this); | |
1243 | } | |
1244 | ||
69c68955 FCE |
1245 | void |
1246 | foreach_loop::visit (visitor* u) | |
1247 | { | |
1248 | u->visit_foreach_loop (this); | |
1249 | } | |
1250 | ||
82919855 FCE |
1251 | void |
1252 | null_statement::visit (visitor* u) | |
1253 | { | |
1254 | u->visit_null_statement (this); | |
1255 | } | |
1256 | ||
1257 | void | |
1258 | expr_statement::visit (visitor* u) | |
1259 | { | |
1260 | u->visit_expr_statement (this); | |
1261 | } | |
1262 | ||
1263 | void | |
1264 | return_statement::visit (visitor* u) | |
1265 | { | |
1266 | u->visit_return_statement (this); | |
1267 | } | |
1268 | ||
1269 | void | |
1270 | delete_statement::visit (visitor* u) | |
1271 | { | |
d7f3e0c5 | 1272 | u->push_active_lvalue (this->value); |
82919855 | 1273 | u->visit_delete_statement (this); |
d7f3e0c5 | 1274 | u->pop_active_lvalue (); |
82919855 FCE |
1275 | } |
1276 | ||
1277 | void | |
1278 | if_statement::visit (visitor* u) | |
1279 | { | |
1280 | u->visit_if_statement (this); | |
1281 | } | |
1282 | ||
f3c26ea5 FCE |
1283 | void |
1284 | next_statement::visit (visitor* u) | |
1285 | { | |
1286 | u->visit_next_statement (this); | |
1287 | } | |
1288 | ||
1289 | void | |
1290 | break_statement::visit (visitor* u) | |
1291 | { | |
1292 | u->visit_break_statement (this); | |
1293 | } | |
1294 | ||
1295 | void | |
1296 | continue_statement::visit (visitor* u) | |
1297 | { | |
1298 | u->visit_continue_statement (this); | |
1299 | } | |
1300 | ||
82919855 FCE |
1301 | void |
1302 | literal_string::visit(visitor* u) | |
1303 | { | |
1304 | u->visit_literal_string (this); | |
1305 | } | |
1306 | ||
1307 | void | |
1308 | literal_number::visit(visitor* u) | |
1309 | { | |
1310 | u->visit_literal_number (this); | |
1311 | } | |
1312 | ||
1313 | void | |
1314 | binary_expression::visit (visitor* u) | |
1315 | { | |
1316 | u->visit_binary_expression (this); | |
1317 | } | |
1318 | ||
7d902887 FCE |
1319 | void |
1320 | embedded_expr::visit (visitor* u) | |
1321 | { | |
1322 | u->visit_embedded_expr (this); | |
1323 | } | |
1324 | ||
82919855 FCE |
1325 | void |
1326 | unary_expression::visit (visitor* u) | |
1327 | { | |
1328 | u->visit_unary_expression (this); | |
1329 | } | |
1330 | ||
1331 | void | |
1332 | pre_crement::visit (visitor* u) | |
1333 | { | |
d7f3e0c5 | 1334 | u->push_active_lvalue (this->operand); |
82919855 | 1335 | u->visit_pre_crement (this); |
d7f3e0c5 | 1336 | u->pop_active_lvalue (); |
82919855 FCE |
1337 | } |
1338 | ||
1339 | void | |
1340 | post_crement::visit (visitor* u) | |
1341 | { | |
d7f3e0c5 | 1342 | u->push_active_lvalue (this->operand); |
82919855 | 1343 | u->visit_post_crement (this); |
d7f3e0c5 | 1344 | u->pop_active_lvalue (); |
82919855 FCE |
1345 | } |
1346 | ||
1347 | void | |
1348 | logical_or_expr::visit (visitor* u) | |
1349 | { | |
1350 | u->visit_logical_or_expr (this); | |
1351 | } | |
1352 | ||
1353 | void | |
1354 | logical_and_expr::visit (visitor* u) | |
1355 | { | |
1356 | u->visit_logical_and_expr (this); | |
1357 | } | |
1358 | ||
1359 | void | |
1360 | array_in::visit (visitor* u) | |
1361 | { | |
1362 | u->visit_array_in (this); | |
1363 | } | |
1364 | ||
1365 | void | |
1366 | comparison::visit (visitor* u) | |
1367 | { | |
1368 | u->visit_comparison (this); | |
1369 | } | |
1370 | ||
1371 | void | |
1372 | concatenation::visit (visitor* u) | |
1373 | { | |
1374 | u->visit_concatenation (this); | |
1375 | } | |
1376 | ||
82919855 FCE |
1377 | void |
1378 | ternary_expression::visit (visitor* u) | |
1379 | { | |
1380 | u->visit_ternary_expression (this); | |
1381 | } | |
1382 | ||
1383 | void | |
1384 | assignment::visit (visitor* u) | |
1385 | { | |
d7f3e0c5 | 1386 | u->push_active_lvalue (this->left); |
82919855 | 1387 | u->visit_assignment (this); |
d7f3e0c5 | 1388 | u->pop_active_lvalue (); |
82919855 FCE |
1389 | } |
1390 | ||
1391 | void | |
1392 | symbol::visit (visitor* u) | |
1393 | { | |
1394 | u->visit_symbol (this); | |
1395 | } | |
1396 | ||
dff50e09 | 1397 | void |
d7f3e0c5 GH |
1398 | target_symbol::visit (visitor* u) |
1399 | { | |
1400 | u->visit_target_symbol(this); | |
1401 | } | |
1402 | ||
6fda2dff JS |
1403 | void |
1404 | target_symbol::visit_components (visitor* u) | |
1405 | { | |
1406 | for (unsigned i = 0; i < components.size(); ++i) | |
1407 | if (components[i].type == comp_expression_array_index) | |
1408 | components[i].expr_index->visit (u); | |
1409 | } | |
1410 | ||
1411 | void | |
1412 | target_symbol::visit_components (update_visitor* u) | |
1413 | { | |
1414 | for (unsigned i = 0; i < components.size(); ++i) | |
1415 | if (components[i].type == comp_expression_array_index) | |
8b095b45 | 1416 | u->replace (components[i].expr_index); |
6fda2dff JS |
1417 | } |
1418 | ||
9b5af295 JS |
1419 | void |
1420 | cast_op::visit (visitor* u) | |
1421 | { | |
1422 | u->visit_cast_op(this); | |
1423 | } | |
1424 | ||
30263a73 FCE |
1425 | |
1426 | void | |
1427 | defined_op::visit (visitor* u) | |
1428 | { | |
1429 | u->visit_defined_op(this); | |
1430 | } | |
1431 | ||
1432 | ||
8cc799a5 JS |
1433 | void |
1434 | entry_op::visit (visitor* u) | |
1435 | { | |
1436 | u->visit_entry_op(this); | |
1437 | } | |
1438 | ||
1439 | ||
82919855 FCE |
1440 | void |
1441 | arrayindex::visit (visitor* u) | |
1442 | { | |
1443 | u->visit_arrayindex (this); | |
1444 | } | |
1445 | ||
1446 | void | |
1447 | functioncall::visit (visitor* u) | |
1448 | { | |
1449 | u->visit_functioncall (this); | |
1450 | } | |
1451 | ||
d02548c0 GH |
1452 | void |
1453 | print_format::visit (visitor *u) | |
1454 | { | |
1455 | u->visit_print_format (this); | |
1456 | } | |
1457 | ||
1458 | void | |
1459 | stat_op::visit (visitor *u) | |
1460 | { | |
1461 | u->visit_stat_op (this); | |
1462 | } | |
1463 | ||
1464 | void | |
1465 | hist_op::visit (visitor *u) | |
1466 | { | |
1467 | u->visit_hist_op (this); | |
1468 | } | |
1469 | ||
dff50e09 | 1470 | void |
d02548c0 GH |
1471 | indexable::print_indexable (std::ostream& o) const |
1472 | { | |
1473 | const symbol *sym; | |
1474 | const hist_op *hist; | |
1475 | classify_const_indexable(this, sym, hist); | |
1476 | if (sym) | |
1477 | sym->print (o); | |
1478 | else | |
1479 | { | |
1480 | assert (hist); | |
1481 | hist->print (o); | |
dff50e09 | 1482 | } |
d02548c0 GH |
1483 | } |
1484 | ||
dff50e09 | 1485 | void |
d02548c0 GH |
1486 | indexable::visit_indexable (visitor* u) |
1487 | { | |
1488 | symbol *sym; | |
1489 | hist_op *hist; | |
1490 | classify_indexable(this, sym, hist); | |
1491 | if (sym) | |
1492 | sym->visit (u); | |
1493 | else | |
1494 | { | |
1495 | assert (hist); | |
1496 | hist->visit (u); | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | ||
dff50e09 | 1501 | bool |
d02548c0 GH |
1502 | indexable::is_symbol(symbol *& sym_out) |
1503 | { | |
1504 | sym_out = NULL; | |
1505 | return false; | |
1506 | } | |
1507 | ||
dff50e09 | 1508 | bool |
d02548c0 GH |
1509 | indexable::is_hist_op(hist_op *& hist_out) |
1510 | { | |
1511 | hist_out = NULL; | |
1512 | return false; | |
1513 | } | |
1514 | ||
dff50e09 | 1515 | bool |
d02548c0 GH |
1516 | indexable::is_const_symbol(const symbol *& sym_out) const |
1517 | { | |
1518 | sym_out = NULL; | |
1519 | return false; | |
1520 | } | |
1521 | ||
dff50e09 | 1522 | bool |
d02548c0 GH |
1523 | indexable::is_const_hist_op(const hist_op *& hist_out) const |
1524 | { | |
1525 | hist_out = NULL; | |
1526 | return false; | |
1527 | } | |
1528 | ||
dff50e09 | 1529 | bool |
d02548c0 GH |
1530 | symbol::is_symbol(symbol *& sym_out) |
1531 | { | |
1532 | sym_out = this; | |
1533 | return true; | |
1534 | } | |
1535 | ||
dff50e09 | 1536 | bool |
d02548c0 GH |
1537 | symbol::is_const_symbol(const symbol *& sym_out) const |
1538 | { | |
1539 | sym_out = this; | |
1540 | return true; | |
1541 | } | |
1542 | ||
1543 | const token * | |
1544 | symbol::get_tok() const | |
1545 | { | |
1546 | return tok; | |
1547 | } | |
1548 | ||
dff50e09 | 1549 | bool |
d02548c0 GH |
1550 | hist_op::is_hist_op(hist_op *& hist_out) |
1551 | { | |
1552 | hist_out = this; | |
1553 | return true; | |
1554 | } | |
1555 | ||
dff50e09 | 1556 | bool |
d02548c0 GH |
1557 | hist_op::is_const_hist_op(const hist_op *& hist_out) const |
1558 | { | |
1559 | hist_out = this; | |
1560 | return true; | |
1561 | } | |
1562 | ||
1563 | const token * | |
1564 | hist_op::get_tok() const | |
1565 | { | |
1566 | return tok; | |
1567 | } | |
1568 | ||
1569 | void | |
1570 | classify_indexable(indexable* ix, | |
1571 | symbol *& array_out, | |
dff50e09 | 1572 | hist_op *& hist_out) |
d02548c0 GH |
1573 | { |
1574 | array_out = NULL; | |
1575 | hist_out = NULL; | |
a0d55290 | 1576 | assert(ix != NULL); |
d02548c0 | 1577 | if (!(ix->is_symbol (array_out) || ix->is_hist_op (hist_out))) |
58a834b1 | 1578 | throw semantic_error(_("Expecting symbol or histogram operator"), ix->get_tok()); |
a0d55290 | 1579 | if (!(hist_out || array_out)) |
58a834b1 | 1580 | throw semantic_error(_("Failed to classify indexable"), ix->get_tok()); |
d02548c0 GH |
1581 | } |
1582 | ||
1583 | void | |
1584 | classify_const_indexable(const indexable* ix, | |
1585 | const symbol *& array_out, | |
dff50e09 | 1586 | const hist_op *& hist_out) |
d02548c0 GH |
1587 | { |
1588 | array_out = NULL; | |
1589 | hist_out = NULL; | |
1590 | if (!(ix->is_const_symbol(array_out) || ix->is_const_hist_op(hist_out))) | |
58a834b1 | 1591 | throw semantic_error(_("Expecting symbol or histogram operator"), ix->get_tok()); |
d02548c0 GH |
1592 | } |
1593 | ||
d7f3e0c5 GH |
1594 | // ------------------------------------------------------------------------ |
1595 | ||
dff50e09 | 1596 | bool |
d7f3e0c5 GH |
1597 | visitor::is_active_lvalue(expression *e) |
1598 | { | |
1599 | for (unsigned i = 0; i < active_lvalues.size(); ++i) | |
1600 | { | |
1601 | if (active_lvalues[i] == e) | |
1602 | return true; | |
1603 | } | |
1604 | return false; | |
1605 | } | |
1606 | ||
dff50e09 | 1607 | void |
d7f3e0c5 GH |
1608 | visitor::push_active_lvalue(expression *e) |
1609 | { | |
1610 | active_lvalues.push_back(e); | |
1611 | } | |
1612 | ||
dff50e09 | 1613 | void |
d7f3e0c5 GH |
1614 | visitor::pop_active_lvalue() |
1615 | { | |
1616 | assert(!active_lvalues.empty()); | |
1617 | active_lvalues.pop_back(); | |
1618 | } | |
1619 | ||
1620 | ||
82919855 FCE |
1621 | |
1622 | // ------------------------------------------------------------------------ | |
1623 | ||
1624 | void | |
54dfabe9 | 1625 | traversing_visitor::visit_block (block* s) |
82919855 FCE |
1626 | { |
1627 | for (unsigned i=0; i<s->statements.size(); i++) | |
1628 | s->statements[i]->visit (this); | |
1629 | } | |
1630 | ||
f4fe2e93 FCE |
1631 | void |
1632 | traversing_visitor::visit_try_block (try_block* s) | |
1633 | { | |
1634 | if (s->try_block) | |
1635 | s->try_block->visit (this); | |
1636 | if (s->catch_error_var) | |
1637 | s->catch_error_var->visit (this); | |
1638 | if (s->catch_block) | |
1639 | s->catch_block->visit (this); | |
1640 | } | |
1641 | ||
82919855 | 1642 | void |
78f6bba6 | 1643 | traversing_visitor::visit_embeddedcode (embeddedcode*) |
54dfabe9 FCE |
1644 | { |
1645 | } | |
1646 | ||
1647 | void | |
78f6bba6 | 1648 | traversing_visitor::visit_null_statement (null_statement*) |
82919855 FCE |
1649 | { |
1650 | } | |
1651 | ||
1652 | void | |
54dfabe9 | 1653 | traversing_visitor::visit_expr_statement (expr_statement* s) |
82919855 FCE |
1654 | { |
1655 | s->value->visit (this); | |
1656 | } | |
1657 | ||
1658 | void | |
1659 | traversing_visitor::visit_if_statement (if_statement* s) | |
1660 | { | |
1661 | s->condition->visit (this); | |
1662 | s->thenblock->visit (this); | |
2b066ec1 FCE |
1663 | if (s->elseblock) |
1664 | s->elseblock->visit (this); | |
82919855 FCE |
1665 | } |
1666 | ||
1667 | void | |
1668 | traversing_visitor::visit_for_loop (for_loop* s) | |
1669 | { | |
cbfbbf69 | 1670 | if (s->init) s->init->visit (this); |
82919855 | 1671 | s->cond->visit (this); |
cbfbbf69 | 1672 | if (s->incr) s->incr->visit (this); |
82919855 FCE |
1673 | s->block->visit (this); |
1674 | } | |
1675 | ||
69c68955 FCE |
1676 | void |
1677 | traversing_visitor::visit_foreach_loop (foreach_loop* s) | |
1678 | { | |
dff50e09 | 1679 | symbol *array = NULL; |
71572ba8 GH |
1680 | hist_op *hist = NULL; |
1681 | classify_indexable (s->base, array, hist); | |
1682 | if (array) | |
1683 | array->visit(this); | |
1684 | else | |
1685 | hist->visit(this); | |
1686 | ||
69c68955 FCE |
1687 | for (unsigned i=0; i<s->indexes.size(); i++) |
1688 | s->indexes[i]->visit (this); | |
27f21e8c | 1689 | |
c261711d JS |
1690 | if (s->value) |
1691 | s->value->visit (this); | |
1692 | ||
27f21e8c DS |
1693 | if (s->limit) |
1694 | s->limit->visit (this); | |
1695 | ||
69c68955 FCE |
1696 | s->block->visit (this); |
1697 | } | |
1698 | ||
82919855 FCE |
1699 | void |
1700 | traversing_visitor::visit_return_statement (return_statement* s) | |
1701 | { | |
1702 | s->value->visit (this); | |
1703 | } | |
1704 | ||
1705 | void | |
1706 | traversing_visitor::visit_delete_statement (delete_statement* s) | |
1707 | { | |
1708 | s->value->visit (this); | |
1709 | } | |
1710 | ||
f3c26ea5 | 1711 | void |
78f6bba6 | 1712 | traversing_visitor::visit_next_statement (next_statement*) |
f3c26ea5 FCE |
1713 | { |
1714 | } | |
1715 | ||
1716 | void | |
78f6bba6 | 1717 | traversing_visitor::visit_break_statement (break_statement*) |
f3c26ea5 FCE |
1718 | { |
1719 | } | |
1720 | ||
1721 | void | |
78f6bba6 | 1722 | traversing_visitor::visit_continue_statement (continue_statement*) |
f3c26ea5 FCE |
1723 | { |
1724 | } | |
1725 | ||
82919855 | 1726 | void |
78f6bba6 | 1727 | traversing_visitor::visit_literal_string (literal_string*) |
82919855 FCE |
1728 | { |
1729 | } | |
1730 | ||
1731 | void | |
78f6bba6 | 1732 | traversing_visitor::visit_literal_number (literal_number*) |
82919855 FCE |
1733 | { |
1734 | } | |
1735 | ||
7d902887 FCE |
1736 | void |
1737 | traversing_visitor::visit_embedded_expr (embedded_expr*) | |
1738 | { | |
1739 | } | |
1740 | ||
82919855 FCE |
1741 | void |
1742 | traversing_visitor::visit_binary_expression (binary_expression* e) | |
1743 | { | |
1744 | e->left->visit (this); | |
1745 | e->right->visit (this); | |
1746 | } | |
1747 | ||
1748 | void | |
1749 | traversing_visitor::visit_unary_expression (unary_expression* e) | |
1750 | { | |
1751 | e->operand->visit (this); | |
1752 | } | |
1753 | ||
1754 | void | |
1755 | traversing_visitor::visit_pre_crement (pre_crement* e) | |
1756 | { | |
1757 | e->operand->visit (this); | |
1758 | } | |
1759 | ||
1760 | void | |
1761 | traversing_visitor::visit_post_crement (post_crement* e) | |
1762 | { | |
1763 | e->operand->visit (this); | |
1764 | } | |
1765 | ||
1766 | ||
1767 | void | |
1768 | traversing_visitor::visit_logical_or_expr (logical_or_expr* e) | |
1769 | { | |
1770 | e->left->visit (this); | |
1771 | e->right->visit (this); | |
1772 | } | |
1773 | ||
1774 | void | |
1775 | traversing_visitor::visit_logical_and_expr (logical_and_expr* e) | |
1776 | { | |
1777 | e->left->visit (this); | |
1778 | e->right->visit (this); | |
1779 | } | |
1780 | ||
1781 | void | |
1782 | traversing_visitor::visit_array_in (array_in* e) | |
1783 | { | |
ce10591c | 1784 | e->operand->visit (this); |
82919855 FCE |
1785 | } |
1786 | ||
1787 | void | |
1788 | traversing_visitor::visit_comparison (comparison* e) | |
1789 | { | |
1790 | e->left->visit (this); | |
1791 | e->right->visit (this); | |
1792 | } | |
1793 | ||
1794 | void | |
1795 | traversing_visitor::visit_concatenation (concatenation* e) | |
1796 | { | |
1797 | e->left->visit (this); | |
1798 | e->right->visit (this); | |
1799 | } | |
1800 | ||
82919855 FCE |
1801 | void |
1802 | traversing_visitor::visit_ternary_expression (ternary_expression* e) | |
1803 | { | |
1804 | e->cond->visit (this); | |
1805 | e->truevalue->visit (this); | |
1806 | e->falsevalue->visit (this); | |
1807 | } | |
1808 | ||
1809 | void | |
1810 | traversing_visitor::visit_assignment (assignment* e) | |
1811 | { | |
1812 | e->left->visit (this); | |
1813 | e->right->visit (this); | |
1814 | } | |
1815 | ||
1816 | void | |
78f6bba6 | 1817 | traversing_visitor::visit_symbol (symbol*) |
82919855 FCE |
1818 | { |
1819 | } | |
1820 | ||
d7f3e0c5 | 1821 | void |
6fda2dff | 1822 | traversing_visitor::visit_target_symbol (target_symbol* e) |
d7f3e0c5 | 1823 | { |
6fda2dff | 1824 | e->visit_components (this); |
d7f3e0c5 GH |
1825 | } |
1826 | ||
9b5af295 JS |
1827 | void |
1828 | traversing_visitor::visit_cast_op (cast_op* e) | |
1829 | { | |
1830 | e->operand->visit (this); | |
6fda2dff | 1831 | e->visit_components (this); |
9b5af295 JS |
1832 | } |
1833 | ||
30263a73 FCE |
1834 | void |
1835 | traversing_visitor::visit_defined_op (defined_op* e) | |
1836 | { | |
1837 | e->operand->visit (this); | |
1838 | } | |
1839 | ||
8cc799a5 JS |
1840 | void |
1841 | traversing_visitor::visit_entry_op (entry_op* e) | |
1842 | { | |
1843 | e->operand->visit (this); | |
1844 | } | |
1845 | ||
30263a73 | 1846 | |
82919855 FCE |
1847 | void |
1848 | traversing_visitor::visit_arrayindex (arrayindex* e) | |
1849 | { | |
cbfbbf69 FCE |
1850 | for (unsigned i=0; i<e->indexes.size(); i++) |
1851 | e->indexes[i]->visit (this); | |
1852 | ||
1bbeef03 GH |
1853 | symbol *array = NULL; |
1854 | hist_op *hist = NULL; | |
1855 | classify_indexable(e->base, array, hist); | |
1856 | if (array) | |
1857 | return array->visit(this); | |
1858 | else | |
1859 | return hist->visit(this); | |
82919855 FCE |
1860 | } |
1861 | ||
1862 | void | |
1863 | traversing_visitor::visit_functioncall (functioncall* e) | |
1864 | { | |
1865 | for (unsigned i=0; i<e->args.size(); i++) | |
1866 | e->args[i]->visit (this); | |
1867 | } | |
1868 | ||
d02548c0 GH |
1869 | void |
1870 | traversing_visitor::visit_print_format (print_format* e) | |
1871 | { | |
1872 | for (unsigned i=0; i<e->args.size(); i++) | |
1873 | e->args[i]->visit (this); | |
a4636912 GH |
1874 | if (e->hist) |
1875 | e->hist->visit(this); | |
d02548c0 GH |
1876 | } |
1877 | ||
1878 | void | |
1879 | traversing_visitor::visit_stat_op (stat_op* e) | |
1880 | { | |
1881 | e->stat->visit (this); | |
1882 | } | |
1883 | ||
1884 | void | |
1885 | traversing_visitor::visit_hist_op (hist_op* e) | |
1886 | { | |
1887 | e->stat->visit (this); | |
1888 | } | |
1889 | ||
82919855 | 1890 | |
cbfbbf69 | 1891 | void |
dff50e09 | 1892 | functioncall_traversing_visitor::visit_functioncall (functioncall* e) |
cbfbbf69 FCE |
1893 | { |
1894 | traversing_visitor::visit_functioncall (e); | |
1895 | ||
1896 | // prevent infinite recursion | |
1897 | if (traversed.find (e->referent) == traversed.end ()) | |
1898 | { | |
1899 | traversed.insert (e->referent); | |
1900 | // recurse | |
3066c15c FCE |
1901 | functiondecl* last_current_function = current_function; |
1902 | current_function = e->referent; | |
cbfbbf69 | 1903 | e->referent->body->visit (this); |
3066c15c | 1904 | current_function = last_current_function; |
cbfbbf69 FCE |
1905 | } |
1906 | } | |
1907 | ||
1908 | ||
f4fe2e93 FCE |
1909 | void |
1910 | varuse_collecting_visitor::visit_try_block (try_block *s) | |
1911 | { | |
1912 | if (s->try_block) | |
1913 | s->try_block->visit (this); | |
1914 | if (s->catch_error_var) | |
1915 | written.insert (s->catch_error_var->referent); | |
1916 | if (s->catch_block) | |
1917 | s->catch_block->visit (this); | |
1918 | ||
1919 | // NB: don't functioncall_traversing_visitor::visit_try_block (s); | |
1920 | // since that would count s->catch_error_var as a read also. | |
1921 | } | |
1922 | ||
1923 | ||
cbfbbf69 FCE |
1924 | void |
1925 | varuse_collecting_visitor::visit_embeddedcode (embeddedcode *s) | |
1926 | { | |
313db8e6 DB |
1927 | assert (current_function); // only they get embedded code |
1928 | ||
1929 | // Don't allow embedded C functions in unprivileged mode unless | |
2363d2a5 | 1930 | // they are tagged with /* unprivileged */ or /* myproc-unprivileged */ |
42e38653 | 1931 | if (session.privilege < pr_stapdev && |
2363d2a5 DB |
1932 | s->code.find ("/* unprivileged */") == string::npos && |
1933 | s->code.find ("/* myproc-unprivileged */") == string::npos) | |
58a834b1 | 1934 | throw semantic_error (_("function may not be used when --unprivileged is specified"), |
313db8e6 DB |
1935 | current_function->tok); |
1936 | ||
cba1d02d JS |
1937 | // Don't allow /* guru */ functions unless -g is active. |
1938 | if (!session.guru_mode && s->code.find ("/* guru */") != string::npos) | |
58a834b1 | 1939 | throw semantic_error (_("function may not be used unless -g is specified"), |
cba1d02d JS |
1940 | current_function->tok); |
1941 | ||
1b07c728 FCE |
1942 | // We want to elide embedded-C functions when possible. For |
1943 | // example, each $target variable access is expanded to an | |
1944 | // embedded-C function call. Yet, for safety reasons, we should | |
1945 | // presume that embedded-C functions have intentional side-effects. | |
1946 | // | |
1947 | // To tell these two types of functions apart, we apply a | |
1948 | // Kludge(tm): we look for a magic string within the function body. | |
1949 | // $target variables as rvalues will have this; lvalues won't. | |
1950 | // Also, explicit side-effect-free tapset functions will have this. | |
dff50e09 | 1951 | |
1b07c728 | 1952 | if (s->code.find ("/* pure */") != string::npos) |
3066c15c FCE |
1953 | return; |
1954 | ||
cbfbbf69 FCE |
1955 | embedded_seen = true; |
1956 | } | |
1957 | ||
7d902887 FCE |
1958 | |
1959 | // About the same case as above. | |
1960 | void | |
1961 | varuse_collecting_visitor::visit_embedded_expr (embedded_expr *e) | |
1962 | { | |
1963 | // Don't allow embedded C functions in unprivileged mode unless | |
1964 | // they are tagged with /* unprivileged */ | |
42e38653 | 1965 | if (session.privilege < pr_stapdev && |
2363d2a5 DB |
1966 | e->code.find ("/* unprivileged */") == string::npos && |
1967 | e->code.find ("/* myproc-unprivileged */") == string::npos) | |
58a834b1 | 1968 | throw semantic_error (_("embedded expression may not be used when --unprivileged is specified"), |
7d902887 FCE |
1969 | e->tok); |
1970 | ||
1971 | // Don't allow /* guru */ functions unless -g is active. | |
1972 | if (!session.guru_mode && e->code.find ("/* guru */") != string::npos) | |
58a834b1 | 1973 | throw semantic_error (_("embedded expression may not be used unless -g is specified"), |
7d902887 FCE |
1974 | e->tok); |
1975 | ||
1976 | // We want to elide embedded-C functions when possible. For | |
1977 | // example, each $target variable access is expanded to an | |
1978 | // embedded-C function call. Yet, for safety reasons, we should | |
1979 | // presume that embedded-C functions have intentional side-effects. | |
1980 | // | |
1981 | // To tell these two types of functions apart, we apply a | |
1982 | // Kludge(tm): we look for a magic string within the function body. | |
1983 | // $target variables as rvalues will have this; lvalues won't. | |
1984 | // Also, explicit side-effect-free tapset functions will have this. | |
1985 | ||
1986 | if (e->code.find ("/* pure */") != string::npos) | |
1987 | return; | |
1988 | ||
1989 | embedded_seen = true; | |
1990 | } | |
1991 | ||
1992 | ||
b0be9bdb FCE |
1993 | void |
1994 | varuse_collecting_visitor::visit_target_symbol (target_symbol *e) | |
1995 | { | |
1996 | // Still-unresolved target symbol assignments get treated as | |
1997 | // generating side-effects like embedded-C, to prevent premature | |
1998 | // elision and later error message suppression (PR5516). rvalue use | |
1999 | // of unresolved target symbols is OTOH not considered a side-effect. | |
2000 | ||
2001 | if (is_active_lvalue (e)) | |
2002 | embedded_seen = true; | |
6fda2dff JS |
2003 | |
2004 | functioncall_traversing_visitor::visit_target_symbol (e); | |
b0be9bdb | 2005 | } |
cbfbbf69 | 2006 | |
9b5af295 JS |
2007 | void |
2008 | varuse_collecting_visitor::visit_cast_op (cast_op *e) | |
2009 | { | |
2010 | // As with target_symbols, unresolved cast assignments need to preserved | |
2011 | // for later error handling. | |
2012 | if (is_active_lvalue (e)) | |
2013 | embedded_seen = true; | |
2014 | ||
2015 | functioncall_traversing_visitor::visit_cast_op (e); | |
2016 | } | |
2017 | ||
30263a73 FCE |
2018 | void |
2019 | varuse_collecting_visitor::visit_defined_op (defined_op *e) | |
2020 | { | |
2021 | // XXX | |
2022 | functioncall_traversing_visitor::visit_defined_op (e); | |
2023 | } | |
2024 | ||
8cc799a5 JS |
2025 | void |
2026 | varuse_collecting_visitor::visit_entry_op (entry_op *e) | |
2027 | { | |
2028 | // XXX | |
2029 | functioncall_traversing_visitor::visit_entry_op (e); | |
2030 | } | |
2031 | ||
30263a73 | 2032 | |
cbfbbf69 FCE |
2033 | void |
2034 | varuse_collecting_visitor::visit_print_format (print_format* e) | |
2035 | { | |
2036 | // NB: Instead of being top-level statements, "print" and "printf" | |
2037 | // are implemented as statement-expressions containing a | |
2038 | // print_format. They have side-effects, but not via the | |
dff50e09 | 2039 | // embedded-code detection method above. |
1b07c728 FCE |
2040 | // |
2041 | // But sprint and sprintf don't have side-effects. | |
2042 | ||
d20a83f8 SC |
2043 | bool last_lvalue_read = current_lvalue_read; |
2044 | current_lvalue_read = true; | |
1b07c728 FCE |
2045 | if (e->print_to_stream) |
2046 | embedded_seen = true; // a proxy for "has unknown side-effects" | |
2047 | ||
cbfbbf69 | 2048 | functioncall_traversing_visitor::visit_print_format (e); |
d20a83f8 | 2049 | current_lvalue_read = last_lvalue_read; |
cbfbbf69 FCE |
2050 | } |
2051 | ||
2052 | ||
2053 | void | |
2054 | varuse_collecting_visitor::visit_assignment (assignment *e) | |
2055 | { | |
2056 | if (e->op == "=" || e->op == "<<<") // pure writes | |
2057 | { | |
3066c15c | 2058 | expression* last_lvalue = current_lvalue; |
d20a83f8 | 2059 | bool last_lvalue_read = current_lvalue_read; |
cbfbbf69 | 2060 | current_lvalue = e->left; // leave a mark for ::visit_symbol |
d20a83f8 | 2061 | current_lvalue_read = true; |
cbfbbf69 FCE |
2062 | functioncall_traversing_visitor::visit_assignment (e); |
2063 | current_lvalue = last_lvalue; | |
d20a83f8 | 2064 | current_lvalue_read = last_lvalue_read; |
cbfbbf69 FCE |
2065 | } |
2066 | else // read-modify-writes | |
2067 | { | |
2068 | expression* last_lrvalue = current_lrvalue; | |
2069 | current_lrvalue = e->left; // leave a mark for ::visit_symbol | |
2070 | functioncall_traversing_visitor::visit_assignment (e); | |
2071 | current_lrvalue = last_lrvalue; | |
2072 | } | |
2073 | } | |
2074 | ||
2075 | void | |
2076 | varuse_collecting_visitor::visit_symbol (symbol *e) | |
2077 | { | |
2078 | if (e->referent == 0) | |
58a834b1 | 2079 | throw semantic_error (_("symbol without referent"), e->tok); |
cbfbbf69 | 2080 | |
d0c4107b FCE |
2081 | // We could handle initialized globals by marking them as "written". |
2082 | // However, this current visitor may be called for a function or | |
2083 | // probe body, from the point of view of which this global is | |
2084 | // already initialized, so not written. | |
2085 | /* | |
27d24ae2 FCE |
2086 | if (e->referent->init) |
2087 | written.insert (e->referent); | |
d0c4107b | 2088 | */ |
27d24ae2 | 2089 | |
9d8a6ba3 | 2090 | if (current_lvalue == e || current_lrvalue == e) |
cbfbbf69 FCE |
2091 | { |
2092 | written.insert (e->referent); | |
cbfbbf69 | 2093 | } |
9d8a6ba3 | 2094 | if (current_lvalue != e || current_lrvalue == e) |
d20a83f8 | 2095 | { |
9d8a6ba3 | 2096 | read.insert (e->referent); |
d20a83f8 | 2097 | } |
9d8a6ba3 SC |
2098 | |
2099 | if (current_lrvalue == e) | |
cbfbbf69 | 2100 | { |
9d8a6ba3 SC |
2101 | if (current_lvalue_read) |
2102 | used.insert (e->referent); | |
cbfbbf69 | 2103 | } |
9d8a6ba3 SC |
2104 | else if (current_lvalue != e) |
2105 | used.insert (e->referent); | |
cbfbbf69 FCE |
2106 | } |
2107 | ||
2108 | // NB: stat_op need not be overridden, since it will get to | |
2109 | // visit_symbol and only as a possible rvalue. | |
2110 | ||
d20fd9e9 | 2111 | |
cbfbbf69 FCE |
2112 | void |
2113 | varuse_collecting_visitor::visit_arrayindex (arrayindex *e) | |
2114 | { | |
2115 | // Hooking this callback is necessary because of the hacky | |
2116 | // statistics representation. For the expression "i[4] = 5", the | |
2117 | // incoming lvalue will point to this arrayindex. However, the | |
2118 | // symbol corresponding to the "i[4]" is multiply inherited with | |
2119 | // arrayindex. If the symbol base part of this object is not at | |
2120 | // offset 0, then static_cast<symbol*>(e) may result in a different | |
2121 | // address, and not match lvalue by number when we recurse that way. | |
2122 | // So we explicitly override the incoming lvalue/lrvalue values to | |
2123 | // point at the embedded objects' actual base addresses. | |
2124 | ||
2125 | expression* last_lrvalue = current_lrvalue; | |
2126 | expression* last_lvalue = current_lvalue; | |
2127 | ||
2128 | symbol *array = NULL; | |
2129 | hist_op *hist = NULL; | |
2130 | classify_indexable(e->base, array, hist); | |
2131 | ||
2132 | if (array) | |
2133 | { | |
2134 | if (current_lrvalue == e) current_lrvalue = array; | |
2135 | if (current_lvalue == e) current_lvalue = array; | |
2136 | functioncall_traversing_visitor::visit_arrayindex (e); | |
2137 | } | |
2138 | else // if (hist) | |
2139 | { | |
2140 | if (current_lrvalue == e) current_lrvalue = hist->stat; | |
2141 | if (current_lvalue == e) current_lvalue = hist->stat; | |
2142 | functioncall_traversing_visitor::visit_arrayindex (e); | |
2143 | } | |
2144 | ||
2145 | current_lrvalue = last_lrvalue; | |
2146 | current_lvalue = last_lvalue; | |
2147 | } | |
2148 | ||
2149 | ||
2150 | void | |
2151 | varuse_collecting_visitor::visit_pre_crement (pre_crement *e) | |
2152 | { | |
980759f3 MW |
2153 | expression* last_lrvalue = current_lrvalue; |
2154 | current_lrvalue = e->operand; // leave a mark for ::visit_symbol | |
cbfbbf69 | 2155 | functioncall_traversing_visitor::visit_pre_crement (e); |
980759f3 | 2156 | current_lrvalue = last_lrvalue; |
cbfbbf69 FCE |
2157 | } |
2158 | ||
2159 | void | |
2160 | varuse_collecting_visitor::visit_post_crement (post_crement *e) | |
2161 | { | |
980759f3 MW |
2162 | expression* last_lrvalue = current_lrvalue; |
2163 | current_lrvalue = e->operand; // leave a mark for ::visit_symbol | |
cbfbbf69 | 2164 | functioncall_traversing_visitor::visit_post_crement (e); |
980759f3 | 2165 | current_lrvalue = last_lrvalue; |
cbfbbf69 FCE |
2166 | } |
2167 | ||
3066c15c FCE |
2168 | void |
2169 | varuse_collecting_visitor::visit_foreach_loop (foreach_loop* s) | |
2170 | { | |
27d24ae2 FCE |
2171 | // NB: we duplicate so don't bother call |
2172 | // functioncall_traversing_visitor::visit_foreach_loop (s); | |
2173 | ||
dff50e09 | 2174 | symbol *array = NULL; |
27d24ae2 FCE |
2175 | hist_op *hist = NULL; |
2176 | classify_indexable (s->base, array, hist); | |
2177 | if (array) | |
2178 | array->visit(this); | |
2179 | else | |
2180 | hist->visit(this); | |
2181 | ||
3066c15c | 2182 | // If the collection is sorted, imply a "write" access to the |
27d24ae2 | 2183 | // array in addition to the "read" one already noted above. |
3066c15c FCE |
2184 | if (s->sort_direction) |
2185 | { | |
dff50e09 | 2186 | symbol *array = NULL; |
3066c15c FCE |
2187 | hist_op *hist = NULL; |
2188 | classify_indexable (s->base, array, hist); | |
2189 | if (array) this->written.insert (array->referent); | |
2190 | // XXX: Can hist_op iterations be sorted? | |
2191 | } | |
27d24ae2 FCE |
2192 | |
2193 | // NB: don't forget to visit the index expressions, which are lvalues. | |
2194 | for (unsigned i=0; i<s->indexes.size(); i++) | |
2195 | { | |
2196 | expression* last_lvalue = current_lvalue; | |
2197 | current_lvalue = s->indexes[i]; // leave a mark for ::visit_symbol | |
2198 | s->indexes[i]->visit (this); | |
2199 | current_lvalue = last_lvalue; | |
2200 | } | |
2201 | ||
c261711d JS |
2202 | // The value is an lvalue too |
2203 | if (s->value) | |
2204 | { | |
2205 | expression* last_lvalue = current_lvalue; | |
2206 | current_lvalue = s->value; // leave a mark for ::visit_symbol | |
2207 | s->value->visit (this); | |
2208 | current_lvalue = last_lvalue; | |
2209 | } | |
2210 | ||
27d24ae2 FCE |
2211 | if (s->limit) |
2212 | s->limit->visit (this); | |
2213 | ||
2214 | s->block->visit (this); | |
3066c15c | 2215 | } |
cbfbbf69 FCE |
2216 | |
2217 | ||
3066c15c FCE |
2218 | void |
2219 | varuse_collecting_visitor::visit_delete_statement (delete_statement* s) | |
2220 | { | |
2221 | // Ideally, this would be treated like an assignment: a plain write | |
2222 | // to the underlying value ("lvalue"). XXX: However, the | |
2223 | // optimization pass is not smart enough to remove an unneeded | |
2224 | // "delete" yet, so we pose more like a *crement ("lrvalue"). This | |
2225 | // should protect the underlying value from optimizional mischief. | |
2226 | expression* last_lrvalue = current_lrvalue; | |
d20a83f8 | 2227 | bool last_lvalue_read = current_lvalue_read; |
3066c15c | 2228 | current_lrvalue = s->value; // leave a mark for ::visit_symbol |
d20a83f8 | 2229 | current_lvalue_read = true; |
3066c15c FCE |
2230 | functioncall_traversing_visitor::visit_delete_statement (s); |
2231 | current_lrvalue = last_lrvalue; | |
d20a83f8 | 2232 | current_lvalue_read = last_lvalue_read; |
3066c15c | 2233 | } |
cbfbbf69 | 2234 | |
cf9ff341 FCE |
2235 | bool |
2236 | varuse_collecting_visitor::side_effect_free () | |
2237 | { | |
2238 | return (written.empty() && !embedded_seen); | |
2239 | } | |
2240 | ||
2241 | ||
2242 | bool | |
2243 | varuse_collecting_visitor::side_effect_free_wrt (const set<vardecl*>& vars) | |
2244 | { | |
2245 | // A looser notion of side-effect-freeness with respect to a given | |
2246 | // list of variables. | |
2247 | ||
2248 | // That's useful because the written list may consist of local | |
2249 | // variables of called functions. But visible side-effects only | |
2250 | // occur if the client's locals, or any globals are written-to. | |
2251 | ||
2252 | set<vardecl*> intersection; | |
2253 | insert_iterator<set<vardecl*> > int_it (intersection, intersection.begin()); | |
2254 | set_intersection (written.begin(), written.end(), | |
2255 | vars.begin(), vars.end(), | |
2256 | int_it); | |
2257 | ||
2258 | return (intersection.empty() && !embedded_seen); | |
2259 | } | |
2260 | ||
2261 | ||
2262 | ||
cbfbbf69 | 2263 | |
82919855 FCE |
2264 | // ------------------------------------------------------------------------ |
2265 | ||
2266 | ||
2267 | throwing_visitor::throwing_visitor (const std::string& m): msg (m) {} | |
58a834b1 | 2268 | throwing_visitor::throwing_visitor (): msg (_("invalid element")) {} |
82919855 FCE |
2269 | |
2270 | ||
2271 | void | |
2272 | throwing_visitor::throwone (const token* t) | |
2273 | { | |
2274 | throw semantic_error (msg, t); | |
2275 | } | |
2276 | ||
2277 | void | |
54dfabe9 FCE |
2278 | throwing_visitor::visit_block (block* s) |
2279 | { | |
2280 | throwone (s->tok); | |
2281 | } | |
2282 | ||
f4fe2e93 FCE |
2283 | void |
2284 | throwing_visitor::visit_try_block (try_block* s) | |
2285 | { | |
2286 | throwone (s->tok); | |
2287 | } | |
2288 | ||
2289 | ||
54dfabe9 FCE |
2290 | void |
2291 | throwing_visitor::visit_embeddedcode (embeddedcode* s) | |
82919855 FCE |
2292 | { |
2293 | throwone (s->tok); | |
2294 | } | |
2295 | ||
2296 | void | |
54dfabe9 | 2297 | throwing_visitor::visit_null_statement (null_statement* s) |
82919855 FCE |
2298 | { |
2299 | throwone (s->tok); | |
2300 | } | |
2301 | ||
2302 | void | |
54dfabe9 | 2303 | throwing_visitor::visit_expr_statement (expr_statement* s) |
82919855 FCE |
2304 | { |
2305 | throwone (s->tok); | |
2306 | } | |
2307 | ||
2308 | void | |
2309 | throwing_visitor::visit_if_statement (if_statement* s) | |
2310 | { | |
2311 | throwone (s->tok); | |
2312 | } | |
2313 | ||
2314 | void | |
2315 | throwing_visitor::visit_for_loop (for_loop* s) | |
2316 | { | |
2317 | throwone (s->tok); | |
2318 | } | |
2319 | ||
69c68955 FCE |
2320 | void |
2321 | throwing_visitor::visit_foreach_loop (foreach_loop* s) | |
2322 | { | |
2323 | throwone (s->tok); | |
2324 | } | |
2325 | ||
82919855 FCE |
2326 | void |
2327 | throwing_visitor::visit_return_statement (return_statement* s) | |
2328 | { | |
2329 | throwone (s->tok); | |
2330 | } | |
2331 | ||
2332 | void | |
2333 | throwing_visitor::visit_delete_statement (delete_statement* s) | |
2334 | { | |
2335 | throwone (s->tok); | |
2336 | } | |
2337 | ||
f3c26ea5 FCE |
2338 | void |
2339 | throwing_visitor::visit_next_statement (next_statement* s) | |
2340 | { | |
2341 | throwone (s->tok); | |
2342 | } | |
2343 | ||
2344 | void | |
2345 | throwing_visitor::visit_break_statement (break_statement* s) | |
2346 | { | |
2347 | throwone (s->tok); | |
2348 | } | |
2349 | ||
2350 | void | |
2351 | throwing_visitor::visit_continue_statement (continue_statement* s) | |
2352 | { | |
2353 | throwone (s->tok); | |
2354 | } | |
2355 | ||
82919855 FCE |
2356 | void |
2357 | throwing_visitor::visit_literal_string (literal_string* e) | |
2358 | { | |
2359 | throwone (e->tok); | |
2360 | } | |
2361 | ||
2362 | void | |
2363 | throwing_visitor::visit_literal_number (literal_number* e) | |
2364 | { | |
2365 | throwone (e->tok); | |
2366 | } | |
2367 | ||
7d902887 FCE |
2368 | void |
2369 | throwing_visitor::visit_embedded_expr (embedded_expr* e) | |
2370 | { | |
2371 | throwone (e->tok); | |
2372 | } | |
2373 | ||
82919855 FCE |
2374 | void |
2375 | throwing_visitor::visit_binary_expression (binary_expression* e) | |
2376 | { | |
2377 | throwone (e->tok); | |
2378 | } | |
2379 | ||
2380 | void | |
2381 | throwing_visitor::visit_unary_expression (unary_expression* e) | |
2382 | { | |
2383 | throwone (e->tok); | |
2384 | } | |
2385 | ||
2386 | void | |
2387 | throwing_visitor::visit_pre_crement (pre_crement* e) | |
2388 | { | |
2389 | throwone (e->tok); | |
2390 | } | |
2391 | ||
2392 | void | |
2393 | throwing_visitor::visit_post_crement (post_crement* e) | |
2394 | { | |
2395 | throwone (e->tok); | |
0054a7ea FCE |
2396 | } |
2397 | ||
2398 | ||
82919855 FCE |
2399 | void |
2400 | throwing_visitor::visit_logical_or_expr (logical_or_expr* e) | |
2401 | { | |
2402 | throwone (e->tok); | |
2403 | } | |
2404 | ||
2405 | void | |
2406 | throwing_visitor::visit_logical_and_expr (logical_and_expr* e) | |
2407 | { | |
2408 | throwone (e->tok); | |
2409 | } | |
2410 | ||
2411 | void | |
2412 | throwing_visitor::visit_array_in (array_in* e) | |
2413 | { | |
2414 | throwone (e->tok); | |
2415 | } | |
2416 | ||
2417 | void | |
2418 | throwing_visitor::visit_comparison (comparison* e) | |
2419 | { | |
2420 | throwone (e->tok); | |
2421 | } | |
2422 | ||
2423 | void | |
2424 | throwing_visitor::visit_concatenation (concatenation* e) | |
2425 | { | |
2426 | throwone (e->tok); | |
2427 | } | |
2428 | ||
82919855 FCE |
2429 | void |
2430 | throwing_visitor::visit_ternary_expression (ternary_expression* e) | |
2431 | { | |
2432 | throwone (e->tok); | |
2433 | } | |
2434 | ||
2435 | void | |
2436 | throwing_visitor::visit_assignment (assignment* e) | |
2437 | { | |
2438 | throwone (e->tok); | |
2439 | } | |
2440 | ||
2441 | void | |
2442 | throwing_visitor::visit_symbol (symbol* e) | |
2443 | { | |
2444 | throwone (e->tok); | |
2445 | } | |
2446 | ||
d7f3e0c5 GH |
2447 | void |
2448 | throwing_visitor::visit_target_symbol (target_symbol* e) | |
2449 | { | |
2450 | throwone (e->tok); | |
2451 | } | |
2452 | ||
9b5af295 JS |
2453 | void |
2454 | throwing_visitor::visit_cast_op (cast_op* e) | |
2455 | { | |
2456 | throwone (e->tok); | |
2457 | } | |
2458 | ||
30263a73 FCE |
2459 | void |
2460 | throwing_visitor::visit_defined_op (defined_op* e) | |
2461 | { | |
2462 | throwone (e->tok); | |
2463 | } | |
2464 | ||
8cc799a5 JS |
2465 | void |
2466 | throwing_visitor::visit_entry_op (entry_op* e) | |
2467 | { | |
2468 | throwone (e->tok); | |
2469 | } | |
2470 | ||
30263a73 | 2471 | |
82919855 FCE |
2472 | void |
2473 | throwing_visitor::visit_arrayindex (arrayindex* e) | |
2474 | { | |
2475 | throwone (e->tok); | |
2476 | } | |
2477 | ||
2478 | void | |
2479 | throwing_visitor::visit_functioncall (functioncall* e) | |
2480 | { | |
2481 | throwone (e->tok); | |
2482 | } | |
85365d1b | 2483 | |
d02548c0 GH |
2484 | void |
2485 | throwing_visitor::visit_print_format (print_format* e) | |
2486 | { | |
2487 | throwone (e->tok); | |
2488 | } | |
2489 | ||
2490 | void | |
2491 | throwing_visitor::visit_stat_op (stat_op* e) | |
2492 | { | |
2493 | throwone (e->tok); | |
2494 | } | |
2495 | ||
2496 | void | |
2497 | throwing_visitor::visit_hist_op (hist_op* e) | |
2498 | { | |
2499 | throwone (e->tok); | |
2500 | } | |
2501 | ||
85365d1b GH |
2502 | |
2503 | // ------------------------------------------------------------------------ | |
2504 | ||
85365d1b GH |
2505 | |
2506 | void | |
4b6455e8 | 2507 | update_visitor::visit_block (block* s) |
85365d1b | 2508 | { |
85365d1b | 2509 | for (unsigned i = 0; i < s->statements.size(); ++i) |
8b095b45 | 2510 | replace (s->statements[i]); |
4b6455e8 JS |
2511 | provide (s); |
2512 | } | |
2513 | ||
f4fe2e93 FCE |
2514 | void |
2515 | update_visitor::visit_try_block (try_block* s) | |
2516 | { | |
2517 | replace (s->try_block); | |
2518 | replace (s->catch_error_var); | |
2519 | replace (s->catch_block); | |
2520 | provide (s); | |
2521 | } | |
2522 | ||
4b6455e8 JS |
2523 | void |
2524 | update_visitor::visit_embeddedcode (embeddedcode* s) | |
2525 | { | |
2526 | provide (s); | |
2527 | } | |
2528 | ||
2529 | void | |
2530 | update_visitor::visit_null_statement (null_statement* s) | |
2531 | { | |
2532 | provide (s); | |
2533 | } | |
2534 | ||
2535 | void | |
2536 | update_visitor::visit_expr_statement (expr_statement* s) | |
2537 | { | |
8b095b45 | 2538 | replace (s->value); |
4b6455e8 JS |
2539 | provide (s); |
2540 | } | |
2541 | ||
2542 | void | |
2543 | update_visitor::visit_if_statement (if_statement* s) | |
2544 | { | |
8b095b45 JS |
2545 | replace (s->condition); |
2546 | replace (s->thenblock); | |
2547 | replace (s->elseblock); | |
4b6455e8 JS |
2548 | provide (s); |
2549 | } | |
2550 | ||
2551 | void | |
2552 | update_visitor::visit_for_loop (for_loop* s) | |
2553 | { | |
8b095b45 JS |
2554 | replace (s->init); |
2555 | replace (s->cond); | |
2556 | replace (s->incr); | |
2557 | replace (s->block); | |
4b6455e8 JS |
2558 | provide (s); |
2559 | } | |
2560 | ||
2561 | void | |
2562 | update_visitor::visit_foreach_loop (foreach_loop* s) | |
2563 | { | |
2564 | for (unsigned i = 0; i < s->indexes.size(); ++i) | |
8b095b45 JS |
2565 | replace (s->indexes[i]); |
2566 | replace (s->base); | |
c261711d | 2567 | replace (s->value); |
8b095b45 JS |
2568 | replace (s->limit); |
2569 | replace (s->block); | |
4b6455e8 JS |
2570 | provide (s); |
2571 | } | |
2572 | ||
2573 | void | |
2574 | update_visitor::visit_return_statement (return_statement* s) | |
2575 | { | |
8b095b45 | 2576 | replace (s->value); |
4b6455e8 JS |
2577 | provide (s); |
2578 | } | |
2579 | ||
2580 | void | |
2581 | update_visitor::visit_delete_statement (delete_statement* s) | |
2582 | { | |
8b095b45 | 2583 | replace (s->value); |
4b6455e8 JS |
2584 | provide (s); |
2585 | } | |
2586 | ||
2587 | void | |
2588 | update_visitor::visit_next_statement (next_statement* s) | |
2589 | { | |
2590 | provide (s); | |
2591 | } | |
2592 | ||
2593 | void | |
2594 | update_visitor::visit_break_statement (break_statement* s) | |
2595 | { | |
2596 | provide (s); | |
2597 | } | |
2598 | ||
2599 | void | |
2600 | update_visitor::visit_continue_statement (continue_statement* s) | |
2601 | { | |
2602 | provide (s); | |
2603 | } | |
2604 | ||
2605 | void | |
2606 | update_visitor::visit_literal_string (literal_string* e) | |
2607 | { | |
2608 | provide (e); | |
2609 | } | |
2610 | ||
2611 | void | |
2612 | update_visitor::visit_literal_number (literal_number* e) | |
2613 | { | |
2614 | provide (e); | |
2615 | } | |
2616 | ||
7d902887 FCE |
2617 | void |
2618 | update_visitor::visit_embedded_expr (embedded_expr* e) | |
2619 | { | |
2620 | provide (e); | |
2621 | } | |
2622 | ||
4b6455e8 JS |
2623 | void |
2624 | update_visitor::visit_binary_expression (binary_expression* e) | |
2625 | { | |
8b095b45 JS |
2626 | replace (e->left); |
2627 | replace (e->right); | |
4b6455e8 JS |
2628 | provide (e); |
2629 | } | |
2630 | ||
2631 | void | |
2632 | update_visitor::visit_unary_expression (unary_expression* e) | |
2633 | { | |
8b095b45 | 2634 | replace (e->operand); |
4b6455e8 JS |
2635 | provide (e); |
2636 | } | |
2637 | ||
2638 | void | |
2639 | update_visitor::visit_pre_crement (pre_crement* e) | |
2640 | { | |
8b095b45 | 2641 | replace (e->operand); |
4b6455e8 JS |
2642 | provide (e); |
2643 | } | |
2644 | ||
2645 | void | |
2646 | update_visitor::visit_post_crement (post_crement* e) | |
2647 | { | |
8b095b45 | 2648 | replace (e->operand); |
4b6455e8 JS |
2649 | provide (e); |
2650 | } | |
2651 | ||
2652 | ||
2653 | void | |
2654 | update_visitor::visit_logical_or_expr (logical_or_expr* e) | |
2655 | { | |
8b095b45 JS |
2656 | replace (e->left); |
2657 | replace (e->right); | |
4b6455e8 JS |
2658 | provide (e); |
2659 | } | |
2660 | ||
2661 | void | |
2662 | update_visitor::visit_logical_and_expr (logical_and_expr* e) | |
2663 | { | |
8b095b45 JS |
2664 | replace (e->left); |
2665 | replace (e->right); | |
4b6455e8 JS |
2666 | provide (e); |
2667 | } | |
2668 | ||
2669 | void | |
2670 | update_visitor::visit_array_in (array_in* e) | |
2671 | { | |
8b095b45 | 2672 | replace (e->operand); |
4b6455e8 JS |
2673 | provide (e); |
2674 | } | |
2675 | ||
2676 | void | |
2677 | update_visitor::visit_comparison (comparison* e) | |
2678 | { | |
8b095b45 JS |
2679 | replace (e->left); |
2680 | replace (e->right); | |
4b6455e8 JS |
2681 | provide (e); |
2682 | } | |
2683 | ||
2684 | void | |
2685 | update_visitor::visit_concatenation (concatenation* e) | |
2686 | { | |
8b095b45 JS |
2687 | replace (e->left); |
2688 | replace (e->right); | |
4b6455e8 JS |
2689 | provide (e); |
2690 | } | |
2691 | ||
2692 | void | |
2693 | update_visitor::visit_ternary_expression (ternary_expression* e) | |
2694 | { | |
8b095b45 JS |
2695 | replace (e->cond); |
2696 | replace (e->truevalue); | |
2697 | replace (e->falsevalue); | |
4b6455e8 JS |
2698 | provide (e); |
2699 | } | |
2700 | ||
2701 | void | |
2702 | update_visitor::visit_assignment (assignment* e) | |
2703 | { | |
8b095b45 JS |
2704 | replace (e->left); |
2705 | replace (e->right); | |
4b6455e8 JS |
2706 | provide (e); |
2707 | } | |
2708 | ||
2709 | void | |
2710 | update_visitor::visit_symbol (symbol* e) | |
2711 | { | |
2712 | provide (e); | |
2713 | } | |
2714 | ||
2715 | void | |
2716 | update_visitor::visit_target_symbol (target_symbol* e) | |
2717 | { | |
6fda2dff | 2718 | e->visit_components (this); |
4b6455e8 JS |
2719 | provide (e); |
2720 | } | |
2721 | ||
9b5af295 JS |
2722 | void |
2723 | update_visitor::visit_cast_op (cast_op* e) | |
2724 | { | |
8b095b45 | 2725 | replace (e->operand); |
6fda2dff | 2726 | e->visit_components (this); |
9b5af295 JS |
2727 | provide (e); |
2728 | } | |
2729 | ||
30263a73 FCE |
2730 | void |
2731 | update_visitor::visit_defined_op (defined_op* e) | |
2732 | { | |
2733 | replace (e->operand); | |
2734 | provide (e); | |
2735 | } | |
2736 | ||
8cc799a5 JS |
2737 | void |
2738 | update_visitor::visit_entry_op (entry_op* e) | |
2739 | { | |
2740 | replace (e->operand); | |
2741 | provide (e); | |
2742 | } | |
2743 | ||
4b6455e8 JS |
2744 | void |
2745 | update_visitor::visit_arrayindex (arrayindex* e) | |
2746 | { | |
8b095b45 | 2747 | replace (e->base); |
4b6455e8 | 2748 | for (unsigned i = 0; i < e->indexes.size(); ++i) |
8b095b45 | 2749 | replace (e->indexes[i]); |
4b6455e8 JS |
2750 | provide (e); |
2751 | } | |
2752 | ||
2753 | void | |
2754 | update_visitor::visit_functioncall (functioncall* e) | |
2755 | { | |
2756 | for (unsigned i = 0; i < e->args.size(); ++i) | |
8b095b45 | 2757 | replace (e->args[i]); |
4b6455e8 JS |
2758 | provide (e); |
2759 | } | |
2760 | ||
2761 | void | |
2762 | update_visitor::visit_print_format (print_format* e) | |
2763 | { | |
2764 | for (unsigned i = 0; i < e->args.size(); ++i) | |
8b095b45 JS |
2765 | replace (e->args[i]); |
2766 | replace (e->hist); | |
4b6455e8 JS |
2767 | provide (e); |
2768 | } | |
2769 | ||
2770 | void | |
2771 | update_visitor::visit_stat_op (stat_op* e) | |
2772 | { | |
8b095b45 | 2773 | replace (e->stat); |
4b6455e8 JS |
2774 | provide (e); |
2775 | } | |
2776 | ||
2777 | void | |
2778 | update_visitor::visit_hist_op (hist_op* e) | |
2779 | { | |
8b095b45 | 2780 | replace (e->stat); |
4b6455e8 JS |
2781 | provide (e); |
2782 | } | |
2783 | ||
2784 | template <> indexable* | |
3a4235b9 | 2785 | update_visitor::require <indexable> (indexable* src, bool clearok) |
4b6455e8 JS |
2786 | { |
2787 | indexable *dst = NULL; | |
2788 | if (src != NULL) | |
2789 | { | |
2790 | symbol *array_src=NULL; | |
2791 | hist_op *hist_src=NULL; | |
2792 | ||
2793 | classify_indexable(src, array_src, hist_src); | |
2794 | ||
2795 | if (array_src) | |
2796 | dst = require (array_src); | |
2797 | else | |
2798 | dst = require (hist_src); | |
1cd151d5 | 2799 | assert(clearok || dst); |
4b6455e8 JS |
2800 | } |
2801 | return dst; | |
2802 | } | |
2803 | ||
2804 | ||
2805 | // ------------------------------------------------------------------------ | |
2806 | ||
2807 | ||
2808 | void | |
2809 | deep_copy_visitor::visit_block (block* s) | |
2810 | { | |
2811 | update_visitor::visit_block(new block(*s)); | |
85365d1b GH |
2812 | } |
2813 | ||
f4fe2e93 FCE |
2814 | void |
2815 | deep_copy_visitor::visit_try_block (try_block* s) | |
2816 | { | |
2817 | update_visitor::visit_try_block(new try_block(*s)); | |
2818 | } | |
2819 | ||
85365d1b | 2820 | void |
54dfabe9 FCE |
2821 | deep_copy_visitor::visit_embeddedcode (embeddedcode* s) |
2822 | { | |
4b6455e8 | 2823 | update_visitor::visit_embeddedcode(new embeddedcode(*s)); |
54dfabe9 FCE |
2824 | } |
2825 | ||
2826 | void | |
2827 | deep_copy_visitor::visit_null_statement (null_statement* s) | |
85365d1b | 2828 | { |
4b6455e8 | 2829 | update_visitor::visit_null_statement(new null_statement(*s)); |
85365d1b GH |
2830 | } |
2831 | ||
2832 | void | |
54dfabe9 | 2833 | deep_copy_visitor::visit_expr_statement (expr_statement* s) |
85365d1b | 2834 | { |
4b6455e8 | 2835 | update_visitor::visit_expr_statement(new expr_statement(*s)); |
85365d1b GH |
2836 | } |
2837 | ||
2838 | void | |
2839 | deep_copy_visitor::visit_if_statement (if_statement* s) | |
2840 | { | |
4b6455e8 | 2841 | update_visitor::visit_if_statement(new if_statement(*s)); |
85365d1b GH |
2842 | } |
2843 | ||
2844 | void | |
2845 | deep_copy_visitor::visit_for_loop (for_loop* s) | |
2846 | { | |
4b6455e8 | 2847 | update_visitor::visit_for_loop(new for_loop(*s)); |
85365d1b GH |
2848 | } |
2849 | ||
2850 | void | |
2851 | deep_copy_visitor::visit_foreach_loop (foreach_loop* s) | |
2852 | { | |
4b6455e8 | 2853 | update_visitor::visit_foreach_loop(new foreach_loop(*s)); |
85365d1b GH |
2854 | } |
2855 | ||
2856 | void | |
2857 | deep_copy_visitor::visit_return_statement (return_statement* s) | |
2858 | { | |
4b6455e8 | 2859 | update_visitor::visit_return_statement(new return_statement(*s)); |
85365d1b GH |
2860 | } |
2861 | ||
2862 | void | |
2863 | deep_copy_visitor::visit_delete_statement (delete_statement* s) | |
2864 | { | |
4b6455e8 | 2865 | update_visitor::visit_delete_statement(new delete_statement(*s)); |
85365d1b GH |
2866 | } |
2867 | ||
2868 | void | |
2869 | deep_copy_visitor::visit_next_statement (next_statement* s) | |
2870 | { | |
4b6455e8 | 2871 | update_visitor::visit_next_statement(new next_statement(*s)); |
85365d1b GH |
2872 | } |
2873 | ||
2874 | void | |
2875 | deep_copy_visitor::visit_break_statement (break_statement* s) | |
2876 | { | |
4b6455e8 | 2877 | update_visitor::visit_break_statement(new break_statement(*s)); |
85365d1b GH |
2878 | } |
2879 | ||
2880 | void | |
2881 | deep_copy_visitor::visit_continue_statement (continue_statement* s) | |
2882 | { | |
4b6455e8 | 2883 | update_visitor::visit_continue_statement(new continue_statement(*s)); |
85365d1b GH |
2884 | } |
2885 | ||
2886 | void | |
2887 | deep_copy_visitor::visit_literal_string (literal_string* e) | |
2888 | { | |
4b6455e8 | 2889 | update_visitor::visit_literal_string(new literal_string(*e)); |
85365d1b GH |
2890 | } |
2891 | ||
2892 | void | |
2893 | deep_copy_visitor::visit_literal_number (literal_number* e) | |
2894 | { | |
4b6455e8 | 2895 | update_visitor::visit_literal_number(new literal_number(*e)); |
85365d1b GH |
2896 | } |
2897 | ||
7d902887 FCE |
2898 | void |
2899 | deep_copy_visitor::visit_embedded_expr (embedded_expr* e) | |
2900 | { | |
2901 | update_visitor::visit_embedded_expr(new embedded_expr(*e)); | |
2902 | } | |
2903 | ||
85365d1b GH |
2904 | void |
2905 | deep_copy_visitor::visit_binary_expression (binary_expression* e) | |
2906 | { | |
4b6455e8 | 2907 | update_visitor::visit_binary_expression(new binary_expression(*e)); |
85365d1b GH |
2908 | } |
2909 | ||
2910 | void | |
2911 | deep_copy_visitor::visit_unary_expression (unary_expression* e) | |
2912 | { | |
4b6455e8 | 2913 | update_visitor::visit_unary_expression(new unary_expression(*e)); |
85365d1b GH |
2914 | } |
2915 | ||
2916 | void | |
2917 | deep_copy_visitor::visit_pre_crement (pre_crement* e) | |
2918 | { | |
4b6455e8 | 2919 | update_visitor::visit_pre_crement(new pre_crement(*e)); |
85365d1b GH |
2920 | } |
2921 | ||
2922 | void | |
2923 | deep_copy_visitor::visit_post_crement (post_crement* e) | |
2924 | { | |
4b6455e8 | 2925 | update_visitor::visit_post_crement(new post_crement(*e)); |
85365d1b GH |
2926 | } |
2927 | ||
2928 | ||
2929 | void | |
2930 | deep_copy_visitor::visit_logical_or_expr (logical_or_expr* e) | |
2931 | { | |
4b6455e8 | 2932 | update_visitor::visit_logical_or_expr(new logical_or_expr(*e)); |
85365d1b GH |
2933 | } |
2934 | ||
2935 | void | |
2936 | deep_copy_visitor::visit_logical_and_expr (logical_and_expr* e) | |
2937 | { | |
4b6455e8 | 2938 | update_visitor::visit_logical_and_expr(new logical_and_expr(*e)); |
85365d1b GH |
2939 | } |
2940 | ||
2941 | void | |
2942 | deep_copy_visitor::visit_array_in (array_in* e) | |
2943 | { | |
4b6455e8 | 2944 | update_visitor::visit_array_in(new array_in(*e)); |
85365d1b GH |
2945 | } |
2946 | ||
2947 | void | |
2948 | deep_copy_visitor::visit_comparison (comparison* e) | |
2949 | { | |
4b6455e8 | 2950 | update_visitor::visit_comparison(new comparison(*e)); |
85365d1b GH |
2951 | } |
2952 | ||
2953 | void | |
2954 | deep_copy_visitor::visit_concatenation (concatenation* e) | |
2955 | { | |
4b6455e8 | 2956 | update_visitor::visit_concatenation(new concatenation(*e)); |
85365d1b GH |
2957 | } |
2958 | ||
2959 | void | |
2960 | deep_copy_visitor::visit_ternary_expression (ternary_expression* e) | |
2961 | { | |
4b6455e8 | 2962 | update_visitor::visit_ternary_expression(new ternary_expression(*e)); |
85365d1b GH |
2963 | } |
2964 | ||
2965 | void | |
2966 | deep_copy_visitor::visit_assignment (assignment* e) | |
2967 | { | |
4b6455e8 | 2968 | update_visitor::visit_assignment(new assignment(*e)); |
85365d1b GH |
2969 | } |
2970 | ||
2971 | void | |
2972 | deep_copy_visitor::visit_symbol (symbol* e) | |
2973 | { | |
4b6455e8 JS |
2974 | symbol* n = new symbol(*e); |
2975 | n->referent = NULL; // don't copy! | |
2976 | update_visitor::visit_symbol(n); | |
d7f3e0c5 GH |
2977 | } |
2978 | ||
2979 | void | |
2980 | deep_copy_visitor::visit_target_symbol (target_symbol* e) | |
2981 | { | |
4b6455e8 JS |
2982 | target_symbol* n = new target_symbol(*e); |
2983 | n->referent = NULL; // don't copy! | |
2984 | update_visitor::visit_target_symbol(n); | |
85365d1b GH |
2985 | } |
2986 | ||
9b5af295 JS |
2987 | void |
2988 | deep_copy_visitor::visit_cast_op (cast_op* e) | |
2989 | { | |
2990 | update_visitor::visit_cast_op(new cast_op(*e)); | |
2991 | } | |
2992 | ||
30263a73 FCE |
2993 | void |
2994 | deep_copy_visitor::visit_defined_op (defined_op* e) | |
2995 | { | |
2996 | update_visitor::visit_defined_op(new defined_op(*e)); | |
2997 | } | |
2998 | ||
8cc799a5 JS |
2999 | void |
3000 | deep_copy_visitor::visit_entry_op (entry_op* e) | |
3001 | { | |
3002 | update_visitor::visit_entry_op(new entry_op(*e)); | |
3003 | } | |
3004 | ||
85365d1b GH |
3005 | void |
3006 | deep_copy_visitor::visit_arrayindex (arrayindex* e) | |
3007 | { | |
4b6455e8 | 3008 | update_visitor::visit_arrayindex(new arrayindex(*e)); |
85365d1b GH |
3009 | } |
3010 | ||
3011 | void | |
3012 | deep_copy_visitor::visit_functioncall (functioncall* e) | |
3013 | { | |
4b6455e8 JS |
3014 | functioncall* n = new functioncall(*e); |
3015 | n->referent = NULL; // don't copy! | |
3016 | update_visitor::visit_functioncall(n); | |
85365d1b GH |
3017 | } |
3018 | ||
d02548c0 GH |
3019 | void |
3020 | deep_copy_visitor::visit_print_format (print_format* e) | |
3021 | { | |
4b6455e8 | 3022 | update_visitor::visit_print_format(new print_format(*e)); |
d02548c0 GH |
3023 | } |
3024 | ||
3025 | void | |
3026 | deep_copy_visitor::visit_stat_op (stat_op* e) | |
3027 | { | |
4b6455e8 | 3028 | update_visitor::visit_stat_op(new stat_op(*e)); |
d02548c0 GH |
3029 | } |
3030 | ||
3031 | void | |
3032 | deep_copy_visitor::visit_hist_op (hist_op* e) | |
3033 | { | |
4b6455e8 | 3034 | update_visitor::visit_hist_op(new hist_op(*e)); |
edc22ba9 DB |
3035 | } |
3036 | ||
73267b89 | 3037 | /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ |