?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Release 20050930.
[wine/gsoc-2012-control.git] / tools / widl / parser.y
blob3d9afa7308d966babcdfff8c92f79f68559961d7
1 %{
2 /*
3 * IDL Compiler
4 *
5 * Copyright 2002 Ove Kaaven
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 #include "config.h"
23
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <stdarg.h>
27 #include <assert.h>
28 #include <ctype.h>
29 #include <string.h>
30 #ifdef HAVE_ALLOCA_H
31 #include <alloca.h>
32 #endif
33
34 #include "windef.h"
35
36 #include "widl.h"
37 #include "utils.h"
38 #include "parser.h"
39 #include "header.h"
40 #include "typelib.h"
41
42 #if defined(YYBYACC)
43 /* Berkeley yacc (byacc) doesn't seem to know about these */
44 /* Some *BSD supplied versions do define these though */
45 # ifndef YYEMPTY
46 # define YYEMPTY (-1) /* Empty lookahead value of yychar */
47 # endif
48 # ifndef YYLEX
49 # define YYLEX yylex()
50 # endif
51
52 #elif defined(YYBISON)
53 /* Bison was used for original development */
54 /* #define YYEMPTY -2 */
55 /* #define YYLEX yylex() */
56
57 #else
58 /* No yacc we know yet */
59 # if !defined(YYEMPTY) || !defined(YYLEX)
60 # error Yacc version/type unknown. This version needs to be verified for settings of YYEMPTY and YYLEX.
61 # elif defined(__GNUC__) /* gcc defines the #warning directive */
62 # warning Yacc version/type unknown. It defines YYEMPTY and YYLEX, but is not tested
63 /* #else we just take a chance that it works... */
64 # endif
65 #endif
66
67 static attr_t *make_attr(enum attr_type type);
68 static attr_t *make_attrv(enum attr_type type, unsigned long val);
69 static attr_t *make_attrp(enum attr_type type, void *val);
70 static expr_t *make_expr(enum expr_type type);
71 static expr_t *make_exprl(enum expr_type type, long val);
72 static expr_t *make_exprs(enum expr_type type, char *val);
73 static expr_t *make_exprt(enum expr_type type, typeref_t *tref, expr_t *expr);
74 static expr_t *make_expr1(enum expr_type type, expr_t *expr);
75 static expr_t *make_expr2(enum expr_type type, expr_t *exp1, expr_t *exp2);
76 static expr_t *make_expr3(enum expr_type type, expr_t *expr1, expr_t *expr2, expr_t *expr3);
77 static type_t *make_type(unsigned char type, type_t *ref);
78 static typeref_t *make_tref(char *name, type_t *ref);
79 static typeref_t *uniq_tref(typeref_t *ref);
80 static type_t *type_ref(typeref_t *ref);
81 static void set_type(var_t *v, typeref_t *ref, expr_t *arr);
82 static ifref_t *make_ifref(type_t *iface);
83 static var_t *make_var(char *name);
84 static func_t *make_func(var_t *def, var_t *args);
85 static class_t *make_class(char *name);
86
87 static type_t *reg_type(type_t *type, char *name, int t);
88 static type_t *reg_types(type_t *type, var_t *names, int t);
89 static type_t *find_type(const char *name, int t);
90 static type_t *find_type2(char *name, int t);
91 static type_t *get_type(unsigned char type, char *name, int t);
92 static type_t *get_typev(unsigned char type, var_t *name, int t);
93 static int get_struct_type(var_t *fields);
94
95 static var_t *reg_const(var_t *var);
96 static var_t *find_const(char *name, int f);
97
98 #define tsENUM 1
99 #define tsSTRUCT 2
100 #define tsUNION 3
101
102 static type_t std_bool = { "boolean" };
103 static type_t std_int = { "int" };
104 static type_t std_int64 = { "__int64" };
105 static type_t std_uhyper = { "MIDL_uhyper" };
106
107 %}
108 %union {
109 attr_t *attr;
110 expr_t *expr;
111 type_t *type;
112 typeref_t *tref;
113 var_t *var;
114 func_t *func;
115 ifref_t *ifref;
116 class_t *clas;
117 char *str;
118 UUID *uuid;
119 unsigned int num;
120 }
121
122 %token <str> aIDENTIFIER
123 %token <str> aKNOWNTYPE
124 %token <num> aNUM aHEXNUM
125 %token <str> aSTRING
126 %token <uuid> aUUID
127 %token aEOF
128 %token SHL SHR
129 %token tAGGREGATABLE tALLOCATE tAPPOBJECT tARRAYS tASYNC tASYNCUUID
130 %token tAUTOHANDLE tBINDABLE tBOOLEAN tBROADCAST tBYTE tBYTECOUNT
131 %token tCALLAS tCALLBACK tCASE tCDECL tCHAR tCOCLASS tCODE tCOMMSTATUS
132 %token tCONST tCONTEXTHANDLE tCONTEXTHANDLENOSERIALIZE
133 %token tCONTEXTHANDLESERIALIZE tCONTROL tCPPQUOTE
134 %token tDEFAULT
135 %token tDEFAULTVALUE
136 %token tDISPINTERFACE
137 %token tDLLNAME tDOUBLE tDUAL
138 %token tENDPOINT
139 %token tENTRY tENUM tERRORSTATUST
140 %token tEXPLICITHANDLE tEXTERN
141 %token tFLOAT
142 %token tHANDLE
143 %token tHANDLET
144 %token tHELPCONTEXT tHELPFILE
145 %token tHELPSTRING tHELPSTRINGCONTEXT tHELPSTRINGDLL
146 %token tHIDDEN
147 %token tHYPER tID tIDEMPOTENT
148 %token tIIDIS
149 %token tIMPLICITHANDLE
150 %token tIMPORT tIMPORTLIB
151 %token tIN tINCLUDE tINLINE
152 %token tINPUTSYNC
153 %token tINT tINT64
154 %token tINTERFACE
155 %token tLENGTHIS tLIBRARY
156 %token tLOCAL
157 %token tLONG
158 %token tMETHODS
159 %token tMODULE
160 %token tNONCREATABLE
161 %token tOBJECT tODL tOLEAUTOMATION
162 %token tOPTIONAL
163 %token tOUT
164 %token tPOINTERDEFAULT
165 %token tPROPERTIES
166 %token tPROPGET tPROPPUT tPROPPUTREF
167 %token tPTR
168 %token tPUBLIC
169 %token tRANGE
170 %token tREADONLY tREF
171 %token tRESTRICTED
172 %token tRETVAL
173 %token tSHORT
174 %token tSIGNED
175 %token tSINGLE
176 %token tSIZEIS tSIZEOF
177 %token tSMALL
178 %token tSOURCE
179 %token tSTDCALL
180 %token tSTRING tSTRUCT
181 %token tSWITCH tSWITCHIS tSWITCHTYPE
182 %token tTRANSMITAS
183 %token tTYPEDEF
184 %token tUNION
185 %token tUNIQUE
186 %token tUNSIGNED
187 %token tUUID
188 %token tV1ENUM
189 %token tVARARG
190 %token tVERSION
191 %token tVOID
192 %token tWCHAR tWIREMARSHAL
193
194 /* used in attr_t */
195 %token tPOINTERTYPE
196
197 %type <attr> m_attributes attributes attrib_list attribute
198 %type <expr> m_exprs /* exprs expr_list */ m_expr expr expr_list_const expr_const
199 %type <expr> array array_list
200 %type <type> inherit interface interfacehdr interfacedef interfacedec
201 %type <type> dispinterface dispinterfacehdr dispinterfacedef
202 %type <type> module modulehdr moduledef
203 %type <type> base_type int_std
204 %type <type> enumdef structdef typedef uniondef
205 %type <ifref> gbl_statements coclass_ints coclass_int
206 %type <tref> type
207 %type <var> m_args no_args args arg
208 %type <var> fields field s_field cases case enums enum_list enum constdef externdef
209 %type <var> m_ident t_ident ident p_ident pident pident_list
210 %type <var> dispint_props
211 %type <func> funcdef int_statements
212 %type <func> dispint_meths
213 %type <clas> coclass coclasshdr coclassdef
214 %type <num> pointer_type version
215 %type <str> libraryhdr
216
217 %left ','
218 %right COND
219 %left '|'
220 %left '&'
221 %left '-' '+'
222 %left '*' '/'
223 %left SHL SHR
224 %right '~'
225 %right CAST
226 %right PPTR
227 %right NEG
228
229 %%
230
231 input: gbl_statements { write_proxies($1); write_client($1); write_server($1); }
232 ;
233
234 gbl_statements: { $$ = NULL; }
235 | gbl_statements interfacedec { $$ = $1; }
236 | gbl_statements interfacedef { $$ = make_ifref($2); LINK($$, $1); }
237 | gbl_statements coclassdef { $$ = $1; add_coclass($2); }
238 | gbl_statements moduledef { $$ = $1; add_module($2); }
239 | gbl_statements librarydef { $$ = $1; }
240 | gbl_statements statement { $$ = $1; }
241 ;
242
243 imp_statements: {}
244 | imp_statements interfacedec { if (!parse_only) add_interface($2); }
245 | imp_statements interfacedef { if (!parse_only) add_interface($2); }
246 | imp_statements coclassdef { if (!parse_only) add_coclass($2); }
247 | imp_statements moduledef { if (!parse_only) add_module($2); }
248 | imp_statements statement {}
249 ;
250
251 int_statements: { $$ = NULL; }
252 | int_statements funcdef ';' { $$ = $2; LINK($$, $1); }
253 | int_statements statement { $$ = $1; }
254 ;
255
256 statement: ';' {}
257 | constdef ';' { if (!parse_only && do_header) { write_constdef($1); } }
258 | cppquote {}
259 | enumdef ';' { if (!parse_only && do_header) { write_type(header, $1, NULL, NULL); fprintf(header, ";\n\n"); } }
260 | externdef ';' { if (!parse_only && do_header) { write_externdef($1); } }
261 | import {}
262 | structdef ';' { if (!parse_only && do_header) { write_type(header, $1, NULL, NULL); fprintf(header, ";\n\n"); } }
263 | typedef ';' {}
264 | uniondef ';' { if (!parse_only && do_header) { write_type(header, $1, NULL, NULL); fprintf(header, ";\n\n"); } }
265 ;
266
267 cppquote: tCPPQUOTE '(' aSTRING ')' { if (!parse_only && do_header) fprintf(header, "%s\n", $3); }
268 ;
269 import_start: tIMPORT aSTRING ';' { assert(yychar == YYEMPTY);
270 if (!do_import($2)) yychar = aEOF; }
271 ;
272 import: import_start imp_statements aEOF {}
273 ;
274
275 libraryhdr: tLIBRARY aIDENTIFIER { $$ = $2; }
276 ;
277 library_start: attributes libraryhdr '{' { start_typelib($2, $1);
278 if (!parse_only && do_header) write_library($2, $1); }
279 ;
280 librarydef: library_start imp_statements '}' { end_typelib(); }
281 ;
282
283 m_args: { $$ = NULL; }
284 | args
285 ;
286
287 no_args: tVOID { $$ = NULL; }
288 ;
289
290 args: arg
291 | args ',' arg { LINK($3, $1); $$ = $3; }
292 | no_args
293 ;
294
295 /* split into two rules to get bison to resolve a tVOID conflict */
296 arg: attributes type pident array { $$ = $3;
297 set_type($$, $2, $4);
298 $$->attrs = $1;
299 }
300 | type pident array { $$ = $2;
301 set_type($$, $1, $3);
302 }
303 | attributes type pident '(' m_args ')' { $$ = $3;
304 $$->ptr_level--;
305 set_type($$, $2, NULL);
306 $$->attrs = $1;
307 $$->args = $5;
308 }
309 | type pident '(' m_args ')' { $$ = $2;
310 $$->ptr_level--;
311 set_type($$, $1, NULL);
312 $$->args = $4;
313 }
314 ;
315
316 array: { $$ = NULL; }
317 | '[' array_list ']' { $$ = $2; }
318 | '[' '*' ']' { $$ = make_expr(EXPR_VOID); }
319 ;
320
321 array_list: m_expr /* size of first dimension is optional */
322 | array_list ',' expr { LINK($3, $1); $$ = $3; }
323 | array_list ']' '[' expr { LINK($4, $1); $$ = $4; }
324 ;
325
326 m_attributes: { $$ = NULL; }
327 | attributes
328 ;
329
330 attributes:
331 '[' attrib_list ']' { $$ = $2; }
332 ;
333
334 attrib_list: attribute
335 | attrib_list ',' attribute { LINK($3, $1); $$ = $3; }
336 | attrib_list ']' '[' attribute { LINK($4, $1); $$ = $4; }
337 ;
338
339 attribute:
340 tASYNC { $$ = make_attr(ATTR_ASYNC); }
341 | tAUTOHANDLE { $$ = make_attr(ATTR_AUTO_HANDLE); }
342 | tCALLAS '(' ident ')' { $$ = make_attrp(ATTR_CALLAS, $3); }
343 | tCASE '(' expr_list_const ')' { $$ = make_attrp(ATTR_CASE, $3); }
344 | tCONTEXTHANDLE { $$ = make_attrv(ATTR_CONTEXTHANDLE, 0); }
345 | tCONTEXTHANDLENOSERIALIZE { $$ = make_attrv(ATTR_CONTEXTHANDLE, 0); /* RPC_CONTEXT_HANDLE_DONT_SERIALIZE */ }
346 | tCONTEXTHANDLESERIALIZE { $$ = make_attrv(ATTR_CONTEXTHANDLE, 0); /* RPC_CONTEXT_HANDLE_SERIALIZE */ }
347 | tCONTROL { $$ = make_attr(ATTR_CONTROL); }
348 | tDEFAULT { $$ = make_attr(ATTR_DEFAULT); }
349 | tDEFAULTVALUE '(' expr_const ')' { $$ = make_attrp(ATTR_DEFAULTVALUE_EXPR, $3); }
350 | tDEFAULTVALUE '(' aSTRING ')' { $$ = make_attrp(ATTR_DEFAULTVALUE_STRING, $3); }
351 | tDLLNAME '(' aSTRING ')' { $$ = make_attrp(ATTR_DLLNAME, $3); }
352 | tDUAL { $$ = make_attr(ATTR_DUAL); }
353 | tENDPOINT '(' aSTRING ')' { $$ = make_attrp(ATTR_ENDPOINT, $3); }
354 | tENTRY '(' aSTRING ')' { $$ = make_attrp(ATTR_ENTRY_STRING, $3); }
355 | tENTRY '(' expr_const ')' { $$ = make_attrp(ATTR_ENTRY_ORDINAL, $3); }
356 | tEXPLICITHANDLE { $$ = make_attr(ATTR_EXPLICIT_HANDLE); }
357 | tHANDLE { $$ = make_attr(ATTR_HANDLE); }
358 | tHELPCONTEXT '(' expr_const ')' { $$ = make_attrp(ATTR_HELPCONTEXT, $3); }
359 | tHELPFILE '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPFILE, $3); }
360 | tHELPSTRING '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPSTRING, $3); }
361 | tHELPSTRINGCONTEXT '(' expr_const ')' { $$ = make_attrp(ATTR_HELPSTRINGCONTEXT, $3); }
362 | tHELPSTRINGDLL '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPSTRINGDLL, $3); }
363 | tHIDDEN { $$ = make_attr(ATTR_HIDDEN); }
364 | tID '(' expr_const ')' { $$ = make_attrp(ATTR_ID, $3); }
365 | tIDEMPOTENT { $$ = make_attr(ATTR_IDEMPOTENT); }
366 | tIIDIS '(' ident ')' { $$ = make_attrp(ATTR_IIDIS, $3); }
367 | tIMPLICITHANDLE '(' tHANDLET aIDENTIFIER ')' { $$ = make_attrp(ATTR_IMPLICIT_HANDLE, $4); }
368 | tIN { $$ = make_attr(ATTR_IN); }
369 | tINPUTSYNC { $$ = make_attr(ATTR_INPUTSYNC); }
370 | tLENGTHIS '(' m_exprs ')' { $$ = make_attrp(ATTR_LENGTHIS, $3); }
371 | tLOCAL { $$ = make_attr(ATTR_LOCAL); }
372 | tNONCREATABLE { $$ = make_attr(ATTR_NONCREATABLE); }
373 | tOBJECT { $$ = make_attr(ATTR_OBJECT); }
374 | tODL { $$ = make_attr(ATTR_ODL); }
375 | tOLEAUTOMATION { $$ = make_attr(ATTR_OLEAUTOMATION); }
376 | tOPTIONAL { $$ = make_attr(ATTR_OPTIONAL); }
377 | tOUT { $$ = make_attr(ATTR_OUT); }
378 | tPOINTERDEFAULT '(' pointer_type ')' { $$ = make_attrv(ATTR_POINTERDEFAULT, $3); }
379 | tPROPGET { $$ = make_attr(ATTR_PROPGET); }
380 | tPROPPUT { $$ = make_attr(ATTR_PROPPUT); }
381 | tPROPPUTREF { $$ = make_attr(ATTR_PROPPUTREF); }
382 | tPUBLIC { $$ = make_attr(ATTR_PUBLIC); }
383 | tRANGE '(' expr_const ',' expr_const ')' { LINK($5, $3); $$ = make_attrp(ATTR_RANGE, $5); }
384 | tREADONLY { $$ = make_attr(ATTR_READONLY); }
385 | tRESTRICTED { $$ = make_attr(ATTR_RESTRICTED); }
386 | tRETVAL { $$ = make_attr(ATTR_RETVAL); }
387 | tSIZEIS '(' m_exprs ')' { $$ = make_attrp(ATTR_SIZEIS, $3); }
388 | tSOURCE { $$ = make_attr(ATTR_SOURCE); }
389 | tSTRING { $$ = make_attr(ATTR_STRING); }
390 | tSWITCHIS '(' expr ')' { $$ = make_attrp(ATTR_SWITCHIS, $3); }
391 | tSWITCHTYPE '(' type ')' { $$ = make_attrp(ATTR_SWITCHTYPE, type_ref($3)); }
392 | tTRANSMITAS '(' type ')' { $$ = make_attrp(ATTR_TRANSMITAS, type_ref($3)); }
393 | tUUID '(' aUUID ')' { $$ = make_attrp(ATTR_UUID, $3); }
394 | tV1ENUM { $$ = make_attr(ATTR_V1ENUM); }
395 | tVARARG { $$ = make_attr(ATTR_VARARG); }
396 | tVERSION '(' version ')' { $$ = make_attrv(ATTR_VERSION, $3); }
397 | tWIREMARSHAL '(' type ')' { $$ = make_attrp(ATTR_WIREMARSHAL, type_ref($3)); }
398 | pointer_type { $$ = make_attrv(ATTR_POINTERTYPE, $1); }
399 ;
400
401 callconv:
402 | tSTDCALL
403 ;
404
405 cases: { $$ = NULL; }
406 | cases case { if ($2) { LINK($2, $1); $$ = $2; }
407 else { $$ = $1; }
408 }
409 ;
410
411 case: tCASE expr ':' field { attr_t *a = make_attrp(ATTR_CASE, $2);
412 $$ = $4; if (!$$) $$ = make_var(NULL);
413 LINK(a, $$->attrs); $$->attrs = a;
414 }
415 | tDEFAULT ':' field { attr_t *a = make_attr(ATTR_DEFAULT);
416 $$ = $3; if (!$$) $$ = make_var(NULL);
417 LINK(a, $$->attrs); $$->attrs = a;
418 }
419 ;
420
421 constdef: tCONST type ident '=' expr_const { $$ = reg_const($3);
422 set_type($$, $2, NULL);
423 $$->eval = $5;
424 $$->lval = $5->cval;
425 }
426 ;
427
428 enums: { $$ = NULL; }
429 | enum_list ',' { $$ = $1; }
430 | enum_list
431 ;
432
433 enum_list: enum
434 | enum_list ',' enum { LINK($3, $1); $$ = $3;
435 if ($1 && !$3->eval)
436 $3->lval = $1->lval + 1;
437 }
438 ;
439
440 enum: ident '=' expr_const { $$ = reg_const($1);
441 $$->eval = $3;
442 $$->lval = $3->cval;
443 $$->type = make_type(RPC_FC_LONG, &std_int);
444 }
445 | ident { $$ = reg_const($1);
446 $$->lval = 0; /* default for first enum entry */
447 $$->type = make_type(RPC_FC_LONG, &std_int);
448 }
449 ;
450
451 enumdef: tENUM t_ident '{' enums '}' { $$ = get_typev(RPC_FC_ENUM16, $2, tsENUM);
452 $$->fields = $4;
453 $$->defined = TRUE;
454 if(in_typelib)
455 add_enum($$);
456 }
457 ;
458
459 m_exprs: m_expr
460 | m_exprs ',' m_expr { LINK($3, $1); $$ = $3; }
461 ;
462
463 /*
464 exprs: { $$ = make_expr(EXPR_VOID); }
465 | expr_list
466 ;
467
468 expr_list: expr
469 | expr_list ',' expr { LINK($3, $1); $$ = $3; }
470 ;
471 */
472
473 m_expr: { $$ = make_expr(EXPR_VOID); }
474 | expr
475 ;
476
477 expr: aNUM { $$ = make_exprl(EXPR_NUM, $1); }
478 | aHEXNUM { $$ = make_exprl(EXPR_HEXNUM, $1); }
479 | aIDENTIFIER { $$ = make_exprs(EXPR_IDENTIFIER, $1); }
480 | expr '?' expr ':' expr %prec COND { $$ = make_expr3(EXPR_COND, $1, $3, $5); }
481 | expr '|' expr { $$ = make_expr2(EXPR_OR , $1, $3); }
482 | expr '&' expr { $$ = make_expr2(EXPR_AND, $1, $3); }
483 | expr '+' expr { $$ = make_expr2(EXPR_ADD, $1, $3); }
484 | expr '-' expr { $$ = make_expr2(EXPR_SUB, $1, $3); }
485 | expr '*' expr { $$ = make_expr2(EXPR_MUL, $1, $3); }
486 | expr '/' expr { $$ = make_expr2(EXPR_DIV, $1, $3); }
487 | expr SHL expr { $$ = make_expr2(EXPR_SHL, $1, $3); }
488 | expr SHR expr { $$ = make_expr2(EXPR_SHR, $1, $3); }
489 | '~' expr { $$ = make_expr1(EXPR_NOT, $2); }
490 | '-' expr %prec NEG { $$ = make_expr1(EXPR_NEG, $2); }
491 | '*' expr %prec PPTR { $$ = make_expr1(EXPR_PPTR, $2); }
492 | '(' type ')' expr %prec CAST { $$ = make_exprt(EXPR_CAST, $2, $4); }
493 | tSIZEOF '(' type ')' { $$ = make_exprt(EXPR_SIZEOF, $3, NULL); }
494 | '(' expr ')' { $$ = $2; }
495 ;
496
497 expr_list_const: expr_const
498 | expr_list_const ',' expr_const { LINK($3, $1); $$ = $3; }
499 ;
500
501 expr_const: expr { $$ = $1;
502 if (!$$->is_const)
503 yyerror("expression is not constant\n");
504 }
505 ;
506
507 externdef: tEXTERN tCONST type ident { $$ = $4;
508 set_type($$, $3, NULL);
509 }
510 ;
511
512 fields: { $$ = NULL; }
513 | fields field { if ($2) { LINK($2, $1); $$ = $2; }
514 else { $$ = $1; }
515 }
516 ;
517
518 field: s_field ';' { $$ = $1; }
519 | m_attributes uniondef ';' { $$ = make_var(NULL); $$->type = $2; $$->attrs = $1; }
520 | attributes ';' { $$ = make_var(NULL); $$->attrs = $1; }
521 | ';' { $$ = NULL; }
522 ;
523
524 s_field: m_attributes type pident array { $$ = $3; set_type($$, $2, $4); $$->attrs = $1; }
525 ;
526
527 funcdef:
528 m_attributes type callconv pident
529 '(' m_args ')' { set_type($4, $2, NULL);
530 $4->attrs = $1;
531 $$ = make_func($4, $6);
532 if (is_attr($4->attrs, ATTR_IN)) {
533 yyerror("Inapplicable attribute");
534 }
535 }
536 ;
537
538 m_ident: { $$ = NULL; }
539 | ident
540 ;
541
542 t_ident: { $$ = NULL; }
543 | aIDENTIFIER { $$ = make_var($1); }
544 | aKNOWNTYPE { $$ = make_var($1); }
545 ;
546
547 ident: aIDENTIFIER { $$ = make_var($1); }
548 /* some "reserved words" used in attributes are also used as field names in some MS IDL files */
549 | aKNOWNTYPE { $$ = make_var($<str>1); }
550 | tASYNC { $$ = make_var($<str>1); }
551 | tID { $$ = make_var($<str>1); }
552 | tRANGE { $$ = make_var($<str>1); }
553 | tRETVAL { $$ = make_var($<str>1); }
554 | tVERSION { $$ = make_var($<str>1); }
555 ;
556
557 base_type: tBYTE { $$ = make_type(RPC_FC_BYTE, NULL); }
558 | tWCHAR { $$ = make_type(RPC_FC_WCHAR, NULL); }
559 | int_std
560 | tSIGNED int_std { $$ = $2; $$->sign = 1; }
561 | tUNSIGNED int_std { $$ = $2; $$->sign = -1;
562 switch ($$->type) {
563 case RPC_FC_CHAR: $$->type = RPC_FC_BYTE; $$->sign = 0; break;
564 case RPC_FC_SMALL: $$->type = RPC_FC_USMALL; break;
565 case RPC_FC_SHORT: $$->type = RPC_FC_USHORT; break;
566 case RPC_FC_LONG: $$->type = RPC_FC_ULONG; break;
567 case RPC_FC_HYPER:
568 if (!$$->ref) { $$->ref = &std_uhyper; $$->sign = 0; }
569 break;
570 default: break;
571 }
572 }
573 | tUNSIGNED { $$ = make_type(RPC_FC_ULONG, &std_int); $$->sign = -1; }
574 | tFLOAT { $$ = make_type(RPC_FC_FLOAT, NULL); }
575 | tSINGLE { $$ = make_type(RPC_FC_FLOAT, NULL); }
576 | tDOUBLE { $$ = make_type(RPC_FC_DOUBLE, NULL); }
577 | tBOOLEAN { $$ = make_type(RPC_FC_BYTE, &std_bool); /* ? */ }
578 | tERRORSTATUST { $$ = make_type(RPC_FC_ERROR_STATUS_T, NULL); }
579 | tHANDLET { $$ = make_type(RPC_FC_BIND_PRIMITIVE, NULL); /* ? */ }
580 ;
581
582 m_int:
583 | tINT
584 ;
585
586 int_std: tINT { $$ = make_type(RPC_FC_LONG, &std_int); } /* win32 only */
587 | tSHORT m_int { $$ = make_type(RPC_FC_SHORT, NULL); }
588 | tSMALL { $$ = make_type(RPC_FC_SHORT, NULL); }
589 | tLONG m_int { $$ = make_type(RPC_FC_LONG, NULL); }
590 | tHYPER m_int { $$ = make_type(RPC_FC_HYPER, NULL); }
591 | tINT64 { $$ = make_type(RPC_FC_HYPER, &std_int64); }
592 | tCHAR { $$ = make_type(RPC_FC_CHAR, NULL); }
593 ;
594
595 coclass: tCOCLASS aIDENTIFIER { $$ = make_class($2); }
596 | tCOCLASS aKNOWNTYPE { $$ = make_class($2); }
597 ;
598
599 coclasshdr: attributes coclass { $$ = $2;
600 $$->attrs = $1;
601 if (!parse_only && do_header) write_coclass($$);
602 }
603 ;
604
605 coclassdef: coclasshdr '{' coclass_ints '}' { $$ = $1;
606 $$->ifaces = $3;
607 }
608 ;
609
610 coclass_ints: { $$ = NULL; }
611 | coclass_ints coclass_int { LINK($2, $1); $$ = $2; }
612 ;
613
614 coclass_int:
615 m_attributes interfacedec { $$ = make_ifref($2); $$->attrs = $1; }
616 ;
617
618 dispinterface: tDISPINTERFACE aIDENTIFIER { $$ = get_type(0, $2, 0); }
619 | tDISPINTERFACE aKNOWNTYPE { $$ = get_type(0, $2, 0); }
620 ;
621
622 dispinterfacehdr: attributes dispinterface { $$ = $2;
623 if ($$->defined) yyerror("multiple definition error\n");
624 $$->attrs = $1;
625 $$->attrs = make_attr(ATTR_DISPINTERFACE);
626 LINK($$->attrs, $1);
627 $$->ref = find_type("IDispatch", 0);
628 if (!$$->ref) yyerror("IDispatch is undefined\n");
629 $$->defined = TRUE;
630 if (!parse_only && do_header) write_forward($$);
631 }
632 ;
633
634 dispint_props: tPROPERTIES ':' { $$ = NULL; }
635 | dispint_props s_field ';' { LINK($2, $1); $$ = $2; }
636 ;
637
638 dispint_meths: tMETHODS ':' { $$ = NULL; }
639 | dispint_meths funcdef ';' { LINK($2, $1); $$ = $2; }
640 ;
641
642 dispinterfacedef: dispinterfacehdr '{'
643 dispint_props
644 dispint_meths
645 '}' { $$ = $1;
646 $$->fields = $3;
647 $$->funcs = $4;
648 if (!parse_only && do_header) write_dispinterface($$);
649 }
650 /* FIXME: not sure how to handle this yet
651 | dispinterfacehdr '{' interface '}' { $$ = $1;
652 if (!parse_only && do_header) write_interface($$);
653 }
654 */
655 ;
656
657 inherit: { $$ = NULL; }
658 | ':' aKNOWNTYPE { $$ = find_type2($2, 0); }
659 ;
660
661 interface: tINTERFACE aIDENTIFIER { $$ = get_type(RPC_FC_IP, $2, 0); }
662 | tINTERFACE aKNOWNTYPE { $$ = get_type(RPC_FC_IP, $2, 0); }
663 ;
664
665 interfacehdr: attributes interface { $$ = $2;
666 if ($$->defined) yyerror("multiple definition error\n");
667 $$->attrs = $1;
668 $$->defined = TRUE;
669 if (!parse_only && do_header) write_forward($$);
670 }
671 ;
672
673 interfacedef: interfacehdr inherit
674 '{' int_statements '}' { $$ = $1;
675 $$->ref = $2;
676 $$->funcs = $4;
677 if (!parse_only && do_header) write_interface($$);
678 }
679 /* MIDL is able to import the definition of a base class from inside the
680 * definition of a derived class, I'll try to support it with this rule */
681 | interfacehdr ':' aIDENTIFIER
682 '{' import int_statements '}' { $$ = $1;
683 $$->ref = find_type2($3, 0);
684 if (!$$->ref) yyerror("base class %s not found in import\n", $3);
685 $$->funcs = $6;
686 if (!parse_only && do_header) write_interface($$);
687 }
688 | dispinterfacedef { $$ = $1; }
689 ;
690
691 interfacedec:
692 interface ';' { $$ = $1; if (!parse_only && do_header) write_forward($$); }
693 | dispinterface ';' { $$ = $1; if (!parse_only && do_header) write_forward($$); }
694 ;
695
696 module: tMODULE aIDENTIFIER { $$ = make_type(0, NULL); $$->name = $2; }
697 | tMODULE aKNOWNTYPE { $$ = make_type(0, NULL); $$->name = $2; }
698 ;
699
700 modulehdr: attributes module { $$ = $2;
701 $$->attrs = $1;
702 }
703 ;
704
705 moduledef: modulehdr '{' int_statements '}' { $$ = $1;
706 $$->funcs = $3;
707 /* FIXME: if (!parse_only && do_header) write_module($$); */
708 }
709 ;
710
711 p_ident: '*' pident %prec PPTR { $$ = $2; $$->ptr_level++; }
712 | tCONST p_ident { $$ = $2; /* FIXME */ }
713 ;
714
715 pident: ident
716 | p_ident
717 | '(' pident ')' { $$ = $2; }
718 ;
719
720 pident_list:
721 pident
722 | pident_list ',' pident { LINK($3, $1); $$ = $3; }
723 ;
724
725 pointer_type:
726 tREF { $$ = RPC_FC_RP; }
727 | tUNIQUE { $$ = RPC_FC_UP; }
728 | tPTR { $$ = RPC_FC_FP; }
729 ;
730
731 structdef: tSTRUCT t_ident '{' fields '}' { $$ = get_typev(RPC_FC_STRUCT, $2, tsSTRUCT);
732 /* overwrite RPC_FC_STRUCT with a more exact type */
733 $$->type = get_struct_type( $4 );
734 $$->fields = $4;
735 $$->defined = TRUE;
736 if(in_typelib)
737 add_struct($$);
738 }
739 ;
740
741 type: tVOID { $$ = make_tref(NULL, make_type(0, NULL)); }
742 | aKNOWNTYPE { $$ = make_tref($1, find_type($1, 0)); }
743 | base_type { $$ = make_tref(NULL, $1); }
744 | tCONST type { $$ = uniq_tref($2); $$->ref->is_const = TRUE; }
745 | enumdef { $$ = make_tref(NULL, $1); }
746 | tENUM aIDENTIFIER { $$ = make_tref(NULL, find_type2($2, tsENUM)); }
747 | structdef { $$ = make_tref(NULL, $1); }
748 | tSTRUCT aIDENTIFIER { $$ = make_tref(NULL, get_type(RPC_FC_STRUCT, $2, tsSTRUCT)); }
749 | uniondef { $$ = make_tref(NULL, $1); }
750 | tUNION aIDENTIFIER { $$ = make_tref(NULL, find_type2($2, tsUNION)); }
751 ;
752
753 typedef: tTYPEDEF m_attributes type pident_list { typeref_t *tref = uniq_tref($3);
754 $4->tname = tref->name;
755 tref->name = NULL;
756 $$ = type_ref(tref);
757 $$->attrs = $2;
758 if (!parse_only && do_header) write_typedef($$, $4);
759 if (in_typelib && $$->attrs)
760 add_typedef($$, $4);
761 reg_types($$, $4, 0);
762 }
763 ;
764
765 uniondef: tUNION t_ident '{' fields '}' { $$ = get_typev(RPC_FC_NON_ENCAPSULATED_UNION, $2, tsUNION);
766 $$->fields = $4;
767 $$->defined = TRUE;
768 }
769 | tUNION t_ident
770 tSWITCH '(' s_field ')'
771 m_ident '{' cases '}' { var_t *u = $7;
772 $$ = get_typev(RPC_FC_ENCAPSULATED_UNION, $2, tsUNION);
773 if (!u) u = make_var("tagged_union");
774 u->type = make_type(RPC_FC_NON_ENCAPSULATED_UNION, NULL);
775 u->type->fields = $9;
776 u->type->defined = TRUE;
777 LINK(u, $5); $$->fields = u;
778 $$->defined = TRUE;
779 }
780 ;
781
782 version:
783 aNUM { $$ = MAKELONG($1, 0); }
784 | aNUM '.' aNUM { $$ = MAKELONG($1, $3); }
785 ;
786
787 %%
788
789 static attr_t *make_attr(enum attr_type type)
790 {
791 attr_t *a = xmalloc(sizeof(attr_t));
792 a->type = type;
793 a->u.ival = 0;
794 INIT_LINK(a);
795 return a;
796 }
797
798 static attr_t *make_attrv(enum attr_type type, unsigned long val)
799 {
800 attr_t *a = xmalloc(sizeof(attr_t));
801 a->type = type;
802 a->u.ival = val;
803 INIT_LINK(a);
804 return a;
805 }
806
807 static attr_t *make_attrp(enum attr_type type, void *val)
808 {
809 attr_t *a = xmalloc(sizeof(attr_t));
810 a->type = type;
811 a->u.pval = val;
812 INIT_LINK(a);
813 return a;
814 }
815
816 static expr_t *make_expr(enum expr_type type)
817 {
818 expr_t *e = xmalloc(sizeof(expr_t));
819 e->type = type;
820 e->ref = NULL;
821 e->u.lval = 0;
822 e->is_const = FALSE;
823 INIT_LINK(e);
824 return e;
825 }
826
827 static expr_t *make_exprl(enum expr_type type, long val)
828 {
829 expr_t *e = xmalloc(sizeof(expr_t));
830 e->type = type;
831 e->ref = NULL;
832 e->u.lval = val;
833 e->is_const = FALSE;
834 INIT_LINK(e);
835 /* check for numeric constant */
836 if (type == EXPR_NUM || type == EXPR_HEXNUM) {
837 e->is_const = TRUE;
838 e->cval = val;
839 }
840 return e;
841 }
842
843 static expr_t *make_exprs(enum expr_type type, char *val)
844 {
845 expr_t *e;
846 e = xmalloc(sizeof(expr_t));
847 e->type = type;
848 e->ref = NULL;
849 e->u.sval = val;
850 e->is_const = FALSE;
851 INIT_LINK(e);
852 /* check for predefined constants */
853 if (type == EXPR_IDENTIFIER) {
854 var_t *c = find_const(val, 0);
855 if (c) {
856 e->u.sval = c->name;
857 free(val);
858 e->is_const = TRUE;
859 e->cval = c->lval;
860 }
861 }
862 return e;
863 }
864
865 static expr_t *make_exprt(enum expr_type type, typeref_t *tref, expr_t *expr)
866 {
867 expr_t *e;
868 e = xmalloc(sizeof(expr_t));
869 e->type = type;
870 e->ref = expr;
871 e->u.tref = tref;
872 e->is_const = FALSE;
873 INIT_LINK(e);
874 /* check for cast of constant expression */
875 if (type == EXPR_CAST && expr->is_const) {
876 e->is_const = TRUE;
877 e->cval = expr->cval;
878 }
879 return e;
880 }
881
882 static expr_t *make_expr1(enum expr_type type, expr_t *expr)
883 {
884 expr_t *e;
885 e = xmalloc(sizeof(expr_t));
886 e->type = type;
887 e->ref = expr;
888 e->u.lval = 0;
889 e->is_const = FALSE;
890 INIT_LINK(e);
891 /* check for compile-time optimization */
892 if (expr->is_const) {
893 e->is_const = TRUE;
894 switch (type) {
895 case EXPR_NEG:
896 e->cval = -expr->cval;
897 break;
898 case EXPR_NOT:
899 e->cval = ~expr->cval;
900 break;
901 default:
902 e->is_const = FALSE;
903 break;
904 }
905 }
906 return e;
907 }
908
909 static expr_t *make_expr2(enum expr_type type, expr_t *expr1, expr_t *expr2)
910 {
911 expr_t *e;
912 e = xmalloc(sizeof(expr_t));
913 e->type = type;
914 e->ref = expr1;
915 e->u.ext = expr2;
916 e->is_const = FALSE;
917 INIT_LINK(e);
918 /* check for compile-time optimization */
919 if (expr1->is_const && expr2->is_const) {
920 e->is_const = TRUE;
921 switch (type) {
922 case EXPR_ADD:
923 e->cval = expr1->cval + expr2->cval;
924 break;
925 case EXPR_SUB:
926 e->cval = expr1->cval - expr2->cval;
927 break;
928 case EXPR_MUL:
929 e->cval = expr1->cval * expr2->cval;
930 break;
931 case EXPR_DIV:
932 e->cval = expr1->cval / expr2->cval;
933 break;
934 case EXPR_OR:
935 e->cval = expr1->cval | expr2->cval;
936 break;
937 case EXPR_AND:
938 e->cval = expr1->cval & expr2->cval;
939 break;
940 case EXPR_SHL:
941 e->cval = expr1->cval << expr2->cval;
942 break;
943 case EXPR_SHR:
944 e->cval = expr1->cval >> expr2->cval;
945 break;
946 default:
947 e->is_const = FALSE;
948 break;
949 }
950 }
951 return e;
952 }
953
954 static expr_t *make_expr3(enum expr_type type, expr_t *expr1, expr_t *expr2, expr_t *expr3)
955 {
956 expr_t *e;
957 e = xmalloc(sizeof(expr_t));
958 e->type = type;
959 e->ref = expr1;
960 e->u.ext = expr2;
961 e->ext2 = expr3;
962 e->is_const = FALSE;
963 INIT_LINK(e);
964 /* check for compile-time optimization */
965 if (expr1->is_const && expr2->is_const && expr3->is_const) {
966 e->is_const = TRUE;
967 switch (type) {
968 case EXPR_COND:
969 e->cval = expr1->cval ? expr2->cval : expr3->cval;
970 break;
971 default:
972 e->is_const = FALSE;
973 break;
974 }
975 }
976 return e;
977 }
978
979 static type_t *make_type(unsigned char type, type_t *ref)
980 {
981 type_t *t = xmalloc(sizeof(type_t));
982 t->name = NULL;
983 t->type = type;
984 t->ref = ref;
985 t->rname = NULL;
986 t->attrs = NULL;
987 t->funcs = NULL;
988 t->fields = NULL;
989 t->ignore = parse_only;
990 t->is_const = FALSE;
991 t->sign = 0;
992 t->defined = FALSE;
993 t->written = FALSE;
994 t->typelib_idx = -1;
995 INIT_LINK(t);
996 return t;
997 }
998
999 static typeref_t *make_tref(char *name, type_t *ref)
1000 {
1001 typeref_t *t = xmalloc(sizeof(typeref_t));
1002 t->name = name;
1003 t->ref = ref;
1004 t->uniq = ref ? 0 : 1;
1005 return t;
1006 }
1007
1008 static typeref_t *uniq_tref(typeref_t *ref)
1009 {
1010 typeref_t *t = ref;
1011 type_t *tp;
1012 if (t->uniq) return t;
1013 tp = make_type(0, t->ref);
1014 tp->name = t->name;
1015 t->name = NULL;
1016 t->ref = tp;
1017 t->uniq = 1;
1018 return t;
1019 }
1020
1021 static type_t *type_ref(typeref_t *ref)
1022 {
1023 type_t *t = ref->ref;
1024 if (ref->name) free(ref->name);
1025 free(ref);
1026 return t;
1027 }
1028
1029 static void set_type(var_t *v, typeref_t *ref, expr_t *arr)
1030 {
1031 v->type = ref->ref;
1032 v->tname = ref->name;
1033 ref->name = NULL;
1034 free(ref);
1035 v->array = arr;
1036 }
1037
1038 static ifref_t *make_ifref(type_t *iface)
1039 {
1040 ifref_t *l = xmalloc(sizeof(ifref_t));
1041 l->iface = iface;
1042 l->attrs = NULL;
1043 INIT_LINK(l);
1044 return l;
1045 }
1046
1047 static var_t *make_var(char *name)
1048 {
1049 var_t *v = xmalloc(sizeof(var_t));
1050 v->name = name;
1051 v->ptr_level = 0;
1052 v->type = NULL;
1053 v->tname = NULL;
1054 v->attrs = NULL;
1055 v->array = NULL;
1056 v->eval = NULL;
1057 v->lval = 0;
1058 INIT_LINK(v);
1059 return v;
1060 }
1061
1062 static func_t *make_func(var_t *def, var_t *args)
1063 {
1064 func_t *f = xmalloc(sizeof(func_t));
1065 f->def = def;
1066 f->args = args;
1067 f->ignore = parse_only;
1068 f->idx = -1;
1069 INIT_LINK(f);
1070 return f;
1071 }
1072
1073 static class_t *make_class(char *name)
1074 {
1075 class_t *c = xmalloc(sizeof(class_t));
1076 c->name = name;
1077 c->attrs = NULL;
1078 c->ifaces = NULL;
1079 INIT_LINK(c);
1080 return c;
1081 }
1082
1083 #define HASHMAX 64
1084
1085 static int hash_ident(const char *name)
1086 {
1087 const char *p = name;
1088 int sum = 0;
1089 /* a simple sum hash is probably good enough */
1090 while (*p) {
1091 sum += *p;
1092 p++;
1093 }
1094 return sum & (HASHMAX-1);
1095 }
1096
1097 /***** type repository *****/
1098
1099 struct rtype {
1100 char *name;
1101 type_t *type;
1102 int t;
1103 struct rtype *next;
1104 };
1105
1106 struct rtype *type_hash[HASHMAX];
1107
1108 static type_t *reg_type(type_t *type, char *name, int t)
1109 {
1110 struct rtype *nt;
1111 int hash;
1112 if (!name) {
1113 yyerror("registering named type without name\n");
1114 return type;
1115 }
1116 hash = hash_ident(name);
1117 nt = xmalloc(sizeof(struct rtype));
1118 nt->name = name;
1119 nt->type = type;
1120 nt->t = t;
1121 nt->next = type_hash[hash];
1122 type_hash[hash] = nt;
1123 return type;
1124 }
1125
1126 /* determine pointer type from attrs */
1127 static unsigned char get_pointer_type( type_t *type )
1128 {
1129 int t;
1130 if (is_attr( type->attrs, ATTR_STRING ))
1131 {
1132 type_t *t = type;
1133 while( t->type == 0 && t->ref )
1134 t = t->ref;
1135 switch( t->type )
1136 {
1137 case RPC_FC_CHAR:
1138 return RPC_FC_C_CSTRING;
1139 case RPC_FC_WCHAR:
1140 return RPC_FC_C_WSTRING;
1141 }
1142 }
1143 t = get_attrv( type->attrs, ATTR_POINTERTYPE );
1144 if (t) return t;
1145 return RPC_FC_FP;
1146 }
1147
1148 static type_t *reg_types(type_t *type, var_t *names, int t)
1149 {
1150 type_t *ptr = type;
1151 int ptrc = 0;
1152
1153 while (names) {
1154 var_t *next = NEXT_LINK(names);
1155 if (names->name) {
1156 type_t *cur = ptr;
1157 int cptr = names->ptr_level;
1158 if (cptr > ptrc) {
1159 while (cptr > ptrc) {
1160 int t = get_pointer_type( cur );
1161 cur = ptr = make_type(t, cur);
1162 ptrc++;
1163 }
1164 } else {
1165 while (cptr < ptrc) {
1166 cur = cur->ref;
1167 cptr++;
1168 }
1169 }
1170 reg_type(cur, names->name, t);
1171 }
1172 free(names);
1173 names = next;
1174 }
1175 return type;
1176 }
1177
1178 static type_t *find_type(const char *name, int t)
1179 {
1180 struct rtype *cur = type_hash[hash_ident(name)];
1181 while (cur && (cur->t != t || strcmp(cur->name, name)))
1182 cur = cur->next;
1183 if (!cur) {
1184 yyerror("type %s not found\n", name);
1185 return NULL;
1186 }
1187 return cur->type;
1188 }
1189
1190 static type_t *find_type2(char *name, int t)
1191 {
1192 type_t *tp = find_type(name, t);
1193 free(name);
1194 return tp;
1195 }
1196
1197 int is_type(const char *name)
1198 {
1199 struct rtype *cur = type_hash[hash_ident(name)];
1200 while (cur && (cur->t || strcmp(cur->name, name)))
1201 cur = cur->next;
1202 if (cur) return TRUE;
1203 return FALSE;
1204 }
1205
1206 static type_t *get_type(unsigned char type, char *name, int t)
1207 {
1208 struct rtype *cur = NULL;
1209 type_t *tp;
1210 if (name) {
1211 cur = type_hash[hash_ident(name)];
1212 while (cur && (cur->t != t || strcmp(cur->name, name)))
1213 cur = cur->next;
1214 }
1215 if (cur) {
1216 free(name);
1217 return cur->type;
1218 }
1219 tp = make_type(type, NULL);
1220 tp->name = name;
1221 if (!name) return tp;
1222 return reg_type(tp, name, t);
1223 }
1224
1225 static type_t *get_typev(unsigned char type, var_t *name, int t)
1226 {
1227 char *sname = NULL;
1228 if (name) {
1229 sname = name->name;
1230 free(name);
1231 }
1232 return get_type(type, sname, t);
1233 }
1234
1235 static int get_struct_type(var_t *field)
1236 {
1237 int has_pointer = 0;
1238 int has_conformant_array = 0;
1239 int has_conformant_string = 0;
1240
1241 while (field)
1242 {
1243 type_t *t = field->type;
1244
1245 /* get the base type */
1246 while( (t->type == 0) && t->ref )
1247 t = t->ref;
1248
1249 switch (t->type)
1250 {
1251 /*
1252 * RPC_FC_BYTE, RPC_FC_STRUCT, etc
1253 * Simple types don't effect the type of struct.
1254 * A struct containing a simple struct is still a simple struct.
1255 * So long as we can block copy the data, we return RPC_FC_STRUCT.
1256 */
1257 case 0: /* void pointer */
1258 case RPC_FC_BYTE:
1259 case RPC_FC_CHAR:
1260 case RPC_FC_SMALL:
1261 case RPC_FC_USMALL:
1262 case RPC_FC_WCHAR:
1263 case RPC_FC_SHORT:
1264 case RPC_FC_USHORT:
1265 case RPC_FC_LONG:
1266 case RPC_FC_ULONG:
1267 case RPC_FC_INT3264:
1268 case RPC_FC_UINT3264:
1269 case RPC_FC_HYPER:
1270 case RPC_FC_FLOAT:
1271 case RPC_FC_DOUBLE:
1272 case RPC_FC_STRUCT:
1273 case RPC_FC_ENUM16:
1274 case RPC_FC_ENUM32:
1275 break;
1276
1277 case RPC_FC_UP:
1278 case RPC_FC_FP:
1279 has_pointer = 1;
1280 break;
1281 case RPC_FC_CARRAY:
1282 has_conformant_array = 1;
1283 break;
1284 case RPC_FC_C_CSTRING:
1285 case RPC_FC_C_WSTRING:
1286 has_conformant_string = 1;
1287 break;
1288
1289 /*
1290 * Propagate member attributes
1291 * a struct should be at least as complex as its member
1292 */
1293 case RPC_FC_CVSTRUCT:
1294 has_conformant_string = 1;
1295 has_pointer = 1;
1296 break;
1297
1298 case RPC_FC_CPSTRUCT:
1299 has_conformant_array = 1;
1300 has_pointer = 1;
1301 break;
1302
1303 case RPC_FC_CSTRUCT:
1304 has_conformant_array = 1;
1305 break;
1306
1307 case RPC_FC_PSTRUCT:
1308 has_pointer = 1;
1309 break;
1310
1311 default:
1312 fprintf(stderr,"Unknown struct member %s with type (0x%02x)\n",
1313 field->name, t->type);
1314 /* fallthru - treat it as complex */
1315
1316 /* as soon as we see one of these these members, it's bogus... */
1317 case RPC_FC_IP:
1318 case RPC_FC_ENCAPSULATED_UNION:
1319 case RPC_FC_NON_ENCAPSULATED_UNION:
1320 case RPC_FC_TRANSMIT_AS:
1321 case RPC_FC_REPRESENT_AS:
1322 case RPC_FC_PAD:
1323 case RPC_FC_EMBEDDED_COMPLEX:
1324 case RPC_FC_BOGUS_STRUCT:
1325 return RPC_FC_BOGUS_STRUCT;
1326 }
1327 field = NEXT_LINK(field);
1328 }
1329
1330 if( has_conformant_string && has_pointer )
1331 return RPC_FC_CVSTRUCT;
1332 if( has_conformant_array && has_pointer )
1333 return RPC_FC_CPSTRUCT;
1334 if( has_conformant_array )
1335 return RPC_FC_CSTRUCT;
1336 if( has_pointer )
1337 return RPC_FC_PSTRUCT;
1338 return RPC_FC_STRUCT;
1339 }
1340
1341 /***** constant repository *****/
1342
1343 struct rconst {
1344 char *name;
1345 var_t *var;
1346 struct rconst *next;
1347 };
1348
1349 struct rconst *const_hash[HASHMAX];
1350
1351 static var_t *reg_const(var_t *var)
1352 {
1353 struct rconst *nc;
1354 int hash;
1355 if (!var->name) {
1356 yyerror("registering constant without name\n");
1357 return var;
1358 }
1359 hash = hash_ident(var->name);
1360 nc = xmalloc(sizeof(struct rconst));
1361 nc->name = var->name;
1362 nc->var = var;
1363 nc->next = const_hash[hash];
1364 const_hash[hash] = nc;
1365 return var;
1366 }
1367
1368 static var_t *find_const(char *name, int f)
1369 {
1370 struct rconst *cur = const_hash[hash_ident(name)];
1371 while (cur && strcmp(cur->name, name))
1372 cur = cur->next;
1373 if (!cur) {
1374 if (f) yyerror("constant %s not found\n", name);
1375 return NULL;
1376 }
1377 return cur->var;
1378 }
GSOC 2012 project to enhance the control panel