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1 | (* |
2 | * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen | |
3 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller | |
4 | * This file is part of Coccinelle. | |
5 | * | |
6 | * Coccinelle is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, according to version 2 of the License. | |
9 | * | |
10 | * Coccinelle is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>. | |
17 | * | |
18 | * The authors reserve the right to distribute this or future versions of | |
19 | * Coccinelle under other licenses. | |
20 | *) | |
21 | ||
22 | ||
23 | (* Arities matter for the minus slice, but not for the plus slice. *) | |
24 | ||
25 | (* ? only allowed on rule_elems, and on subterms if the context is ? also. *) | |
26 | ||
27 | module Ast0 = Ast0_cocci | |
28 | module Ast = Ast_cocci | |
29 | ||
30 | (* --------------------------------------------------------------------- *) | |
31 | ||
32 | let warning s = Printf.printf "warning: %s\n" s | |
33 | ||
34 | let fail w str = | |
35 | failwith | |
36 | (Printf.sprintf "cocci line %d: %s" ((Ast0.get_info w).Ast0.line_start) | |
37 | str) | |
38 | ||
39 | let make_opt_unique optfn uniquefn info tgt arity term = | |
40 | let term = Ast0.rewrap info term in | |
41 | if tgt = arity | |
42 | then term | |
43 | else (* tgt must be NONE *) | |
44 | match arity with | |
45 | Ast0.OPT -> Ast0.copywrap info (optfn term) | |
46 | | Ast0.UNIQUE -> Ast0.copywrap info (uniquefn term) | |
47 | | Ast0.NONE -> failwith "tgt must be NONE" | |
48 | ||
49 | let all_same opt_allowed tgt line arities = | |
50 | let tgt = | |
51 | match tgt with | |
52 | Ast0.NONE -> | |
53 | (match List.hd arities with | |
54 | Ast0.OPT when not opt_allowed -> | |
55 | failwith "opt only allowed for the elements of a statement list" | |
56 | | x -> x) | |
57 | | _ -> tgt in | |
58 | if not(List.for_all (function x -> x = tgt) arities) | |
59 | then warning (Printf.sprintf "incompatible arity found on line %d" line); | |
60 | tgt | |
61 | ||
62 | let get_option fn = function | |
63 | None -> None | |
64 | | Some x -> Some (fn x) | |
65 | ||
66 | let anyopt l fn = List.exists (function w -> fn(Ast0.unwrap w)) l | |
67 | ||
68 | let allopt l fn = | |
69 | let rec loop = function | |
70 | [] -> [] | |
71 | | x::xs -> | |
72 | match fn (Ast0.unwrap x) with | |
73 | Some x -> x :: (loop xs) | |
74 | | None -> [] in | |
75 | let res = loop l in | |
76 | if List.length res = List.length l then Some res else None | |
77 | ||
78 | (* --------------------------------------------------------------------- *) | |
79 | (* --------------------------------------------------------------------- *) | |
80 | (* Mcode *) | |
81 | ||
82 | let mcode2line (_,_,info,_,_) = info.Ast0.line_start | |
83 | let mcode2arity (_,arity,_,_,_) = arity | |
84 | ||
85 | let mcode x = x (* nothing to do ... *) | |
86 | ||
87 | (* --------------------------------------------------------------------- *) | |
88 | (* Dots *) | |
89 | ||
90 | let dots fn d = | |
91 | Ast0.rewrap d | |
92 | (match Ast0.unwrap d with | |
93 | Ast0.DOTS(x) -> Ast0.DOTS(List.map fn x) | |
94 | | Ast0.CIRCLES(x) -> Ast0.CIRCLES(List.map fn x) | |
95 | | Ast0.STARS(x) -> Ast0.STARS(List.map fn x)) | |
96 | ||
97 | let only_dots l = | |
98 | not | |
99 | (List.exists | |
100 | (function x -> | |
101 | match Ast0.unwrap x with | |
102 | Ast0.Circles(_,_) | Ast0.Stars(_,_) -> true | |
103 | | _ -> false) | |
104 | l) | |
105 | ||
106 | let only_circles l = | |
107 | not (List.exists | |
108 | (function x -> | |
109 | match Ast0.unwrap x with | |
110 | Ast0.Dots(_,_) | Ast0.Stars(_,_) -> true | |
111 | | _ -> false) | |
112 | l) | |
113 | ||
114 | let only_stars l = | |
115 | not (List.exists | |
116 | (function x -> | |
117 | match Ast0.unwrap x with | |
118 | Ast0.Dots(_,_) | Ast0.Circles(_,_) -> true | |
119 | | _ -> false) | |
120 | l) | |
121 | ||
122 | let concat_dots fn d = | |
123 | Ast0.rewrap d | |
124 | (match Ast0.unwrap d with | |
125 | Ast0.DOTS(x) -> | |
126 | let l = List.map fn x in | |
127 | if only_dots l | |
128 | then Ast0.DOTS(l) | |
129 | else fail d "inconsistent dots usage" | |
130 | | Ast0.CIRCLES(x) -> | |
131 | let l = List.map fn x in | |
132 | if only_circles l | |
133 | then Ast0.CIRCLES(l) | |
134 | else fail d "inconsistent dots usage" | |
135 | | Ast0.STARS(x) -> | |
136 | let l = List.map fn x in | |
137 | if only_stars l | |
138 | then Ast0.STARS(l) | |
139 | else fail d "inconsistent dots usage") | |
140 | ||
141 | let flat_concat_dots fn d = | |
142 | match Ast0.unwrap d with | |
143 | Ast0.DOTS(x) -> List.map fn x | |
144 | | Ast0.CIRCLES(x) -> List.map fn x | |
145 | | Ast0.STARS(x) -> List.map fn x | |
146 | ||
147 | (* --------------------------------------------------------------------- *) | |
148 | (* Identifier *) | |
149 | ||
150 | let make_id = | |
151 | make_opt_unique | |
152 | (function x -> Ast0.OptIdent x) | |
153 | (function x -> Ast0.UniqueIdent x) | |
154 | ||
155 | let ident opt_allowed tgt i = | |
156 | match Ast0.unwrap i with | |
157 | Ast0.Id(name) -> | |
158 | let arity = | |
159 | all_same opt_allowed tgt (mcode2line name) | |
160 | [mcode2arity name] in | |
161 | let name = mcode name in | |
162 | make_id i tgt arity (Ast0.Id(name)) | |
163 | | Ast0.MetaId(name,constraints,pure) -> | |
164 | let arity = | |
165 | all_same opt_allowed tgt (mcode2line name) | |
166 | [mcode2arity name] in | |
167 | let name = mcode name in | |
168 | make_id i tgt arity (Ast0.MetaId(name,constraints,pure)) | |
169 | | Ast0.MetaFunc(name,constraints,pure) -> | |
170 | let arity = | |
171 | all_same opt_allowed tgt (mcode2line name) | |
172 | [mcode2arity name] in | |
173 | let name = mcode name in | |
174 | make_id i tgt arity (Ast0.MetaFunc(name,constraints,pure)) | |
175 | | Ast0.MetaLocalFunc(name,constraints,pure) -> | |
176 | let arity = | |
177 | all_same opt_allowed tgt (mcode2line name) | |
178 | [mcode2arity name] in | |
179 | let name = mcode name in | |
180 | make_id i tgt arity (Ast0.MetaLocalFunc(name,constraints,pure)) | |
181 | | Ast0.OptIdent(_) | Ast0.UniqueIdent(_) -> | |
182 | failwith "unexpected code" | |
183 | ||
184 | (* --------------------------------------------------------------------- *) | |
185 | (* Expression *) | |
186 | ||
187 | let make_exp = | |
188 | make_opt_unique | |
189 | (function x -> Ast0.OptExp x) | |
190 | (function x -> Ast0.UniqueExp x) | |
191 | ||
192 | let rec top_expression opt_allowed tgt expr = | |
193 | let exp_same = all_same opt_allowed tgt in | |
194 | match Ast0.unwrap expr with | |
195 | Ast0.Ident(id) -> | |
196 | let new_id = ident opt_allowed tgt id in | |
197 | Ast0.rewrap expr | |
198 | (match Ast0.unwrap new_id with | |
199 | Ast0.OptIdent(id) -> | |
200 | Ast0.OptExp(Ast0.rewrap expr (Ast0.Ident(id))) | |
201 | | Ast0.UniqueIdent(id) -> | |
202 | Ast0.UniqueExp(Ast0.rewrap expr (Ast0.Ident(id))) | |
203 | | _ -> Ast0.Ident(new_id)) | |
204 | | Ast0.Constant(const) -> | |
205 | let arity = exp_same (mcode2line const) [mcode2arity const] in | |
206 | let const = mcode const in | |
207 | make_exp expr tgt arity (Ast0.Constant(const)) | |
208 | | Ast0.FunCall(fn,lp,args,rp) -> | |
209 | let arity = exp_same (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
210 | let fn = expression arity fn in | |
211 | let lp = mcode lp in | |
212 | let args = dots (expression arity) args in | |
213 | let rp = mcode rp in | |
214 | make_exp expr tgt arity (Ast0.FunCall(fn,lp,args,rp)) | |
215 | | Ast0.Assignment(left,op,right,simple) -> | |
216 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
217 | let left = expression arity left in | |
218 | let op = mcode op in | |
219 | let right = expression arity right in | |
220 | make_exp expr tgt arity (Ast0.Assignment(left,op,right,simple)) | |
221 | | Ast0.CondExpr(exp1,why,exp2,colon,exp3) -> | |
222 | let arity = | |
223 | exp_same (mcode2line why) [mcode2arity why; mcode2arity colon] in | |
224 | let exp1 = expression arity exp1 in | |
225 | let why = mcode why in | |
226 | let exp2 = get_option (expression arity) exp2 in | |
227 | let colon = mcode colon in | |
228 | let exp3 = expression arity exp3 in | |
229 | make_exp expr tgt arity (Ast0.CondExpr(exp1,why,exp2,colon,exp3)) | |
230 | | Ast0.Postfix(exp,op) -> | |
231 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
232 | let exp = expression arity exp in | |
233 | let op = mcode op in | |
234 | make_exp expr tgt arity (Ast0.Postfix(exp,op)) | |
235 | | Ast0.Infix(exp,op) -> | |
236 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
237 | let exp = expression arity exp in | |
238 | let op = mcode op in | |
239 | make_exp expr tgt arity (Ast0.Infix(exp,op)) | |
240 | | Ast0.Unary(exp,op) -> | |
241 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
242 | let exp = expression arity exp in | |
243 | let op = mcode op in | |
244 | make_exp expr tgt arity (Ast0.Unary(exp,op)) | |
245 | | Ast0.Binary(left,op,right) -> | |
246 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
247 | let left = expression arity left in | |
248 | let op = mcode op in | |
249 | let right = expression arity right in | |
250 | make_exp expr tgt arity (Ast0.Binary(left,op,right)) | |
251 | | Ast0.Nested(left,op,right) -> failwith "nested in arity not possible" | |
252 | | Ast0.Paren(lp,exp,rp) -> | |
253 | let arity = exp_same (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
254 | let lp = mcode lp in | |
255 | let exp = expression arity exp in | |
256 | let rp = mcode rp in | |
257 | make_exp expr tgt arity (Ast0.Paren(lp,exp,rp)) | |
258 | | Ast0.ArrayAccess(exp1,lb,exp2,rb) -> | |
259 | let arity = exp_same (mcode2line lb) [mcode2arity lb; mcode2arity rb] in | |
260 | let exp1 = expression arity exp1 in | |
261 | let lb = mcode lb in | |
262 | let exp2 = expression arity exp2 in | |
263 | let rb = mcode rb in | |
264 | make_exp expr tgt arity (Ast0.ArrayAccess(exp1,lb,exp2,rb)) | |
265 | | Ast0.RecordAccess(exp,pt,field) -> | |
266 | let arity = exp_same (mcode2line pt) [mcode2arity pt] in | |
267 | let exp = expression arity exp in | |
268 | let pt = mcode pt in | |
269 | let field = ident false arity field in | |
270 | make_exp expr tgt arity (Ast0.RecordAccess(exp,pt,field)) | |
271 | | Ast0.RecordPtAccess(exp,ar,field) -> | |
272 | let arity = exp_same (mcode2line ar) [mcode2arity ar] in | |
273 | let exp = expression arity exp in | |
274 | let ar = mcode ar in | |
275 | let field = ident false arity field in | |
276 | make_exp expr tgt arity (Ast0.RecordPtAccess(exp,ar,field)) | |
277 | | Ast0.Cast(lp,ty,rp,exp) -> | |
278 | let arity = exp_same (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
279 | let lp = mcode lp in | |
280 | let ty = typeC arity ty in | |
281 | let rp = mcode rp in | |
282 | let exp = expression arity exp in | |
283 | make_exp expr tgt arity (Ast0.Cast(lp,ty,rp,exp)) | |
284 | | Ast0.SizeOfExpr(szf,exp) -> | |
285 | let arity = exp_same (mcode2line szf) [mcode2arity szf] in | |
286 | let szf = mcode szf in | |
287 | let exp = expression arity exp in | |
288 | make_exp expr tgt arity (Ast0.SizeOfExpr(szf,exp)) | |
289 | | Ast0.SizeOfType(szf,lp,ty,rp) -> | |
290 | let arity = | |
291 | exp_same (mcode2line szf) (List.map mcode2arity [szf;lp;rp]) in | |
292 | let szf = mcode szf in | |
293 | let lp = mcode lp in | |
294 | let ty = typeC arity ty in | |
295 | let rp = mcode rp in | |
296 | make_exp expr tgt arity (Ast0.SizeOfType(szf,lp,ty,rp)) | |
297 | | Ast0.TypeExp(ty) -> Ast0.rewrap expr (Ast0.TypeExp(typeC tgt ty)) | |
298 | | Ast0.MetaErr(name,constraints,pure) -> | |
299 | let arity = exp_same (mcode2line name) [mcode2arity name] in | |
300 | let name = mcode name in | |
301 | make_exp expr tgt arity (Ast0.MetaErr(name,constraints,pure)) | |
302 | | Ast0.MetaExpr(name,constraints,ty,form,pure) -> | |
303 | let arity = exp_same (mcode2line name) [mcode2arity name] in | |
304 | let name = mcode name in | |
305 | make_exp expr tgt arity (Ast0.MetaExpr(name,constraints,ty,form,pure)) | |
306 | | Ast0.MetaExprList(name,lenname,pure) -> | |
307 | let arity = exp_same (mcode2line name) [mcode2arity name] in | |
308 | let name = mcode name in | |
309 | make_exp expr tgt arity (Ast0.MetaExprList(name,lenname,pure)) | |
310 | | Ast0.EComma(cm) -> | |
311 | let arity = exp_same (mcode2line cm) [mcode2arity cm] in | |
312 | let cm = mcode cm in | |
313 | make_exp expr tgt arity (Ast0.EComma(cm)) | |
314 | | Ast0.DisjExpr(starter,exps,mids,ender) -> | |
315 | let exps = List.map (top_expression opt_allowed tgt) exps in | |
316 | (match List.rev exps with | |
317 | _::xs -> | |
318 | if anyopt xs (function Ast0.OptExp(_) -> true | _ -> false) | |
319 | then fail expr "opt only allowed in the last disjunct" | |
320 | | _ -> ()); | |
321 | Ast0.rewrap expr (Ast0.DisjExpr(starter,exps,mids,ender)) | |
322 | | Ast0.NestExpr(starter,exp_dots,ender,whencode,multi) -> | |
323 | let res = | |
324 | Ast0.NestExpr(starter, | |
325 | dots (top_expression true Ast0.NONE) exp_dots, | |
326 | ender,whencode,multi) in | |
327 | Ast0.rewrap expr res | |
328 | | Ast0.Edots(dots,whencode) -> | |
329 | let arity = exp_same (mcode2line dots) [mcode2arity dots] in | |
330 | let dots = mcode dots in | |
331 | let whencode = get_option (expression Ast0.NONE) whencode in | |
332 | make_exp expr tgt arity (Ast0.Edots(dots,whencode)) | |
333 | | Ast0.Ecircles(dots,whencode) -> | |
334 | let arity = exp_same (mcode2line dots) [mcode2arity dots] in | |
335 | let dots = mcode dots in | |
336 | let whencode = get_option (expression Ast0.NONE) whencode in | |
337 | make_exp expr tgt arity (Ast0.Ecircles(dots,whencode)) | |
338 | | Ast0.Estars(dots,whencode) -> | |
339 | let arity = exp_same (mcode2line dots) [mcode2arity dots] in | |
340 | let dots = mcode dots in | |
341 | let whencode = get_option (expression Ast0.NONE) whencode in | |
342 | make_exp expr tgt arity (Ast0.Estars(dots,whencode)) | |
343 | | Ast0.OptExp(_) | Ast0.UniqueExp(_) -> | |
344 | failwith "unexpected code" | |
345 | ||
346 | and expression tgt exp = top_expression false tgt exp | |
347 | ||
348 | (* --------------------------------------------------------------------- *) | |
349 | (* Types *) | |
350 | ||
351 | and make_typeC = | |
352 | make_opt_unique | |
353 | (function x -> Ast0.OptType x) | |
354 | (function x -> Ast0.UniqueType x) | |
355 | ||
356 | and top_typeC tgt opt_allowed typ = | |
357 | match Ast0.unwrap typ with | |
358 | Ast0.ConstVol(cv,ty) -> | |
359 | let arity = all_same opt_allowed tgt (mcode2line cv) | |
360 | [mcode2arity cv] in | |
361 | let cv = mcode cv in | |
362 | let ty = typeC arity ty in | |
363 | make_typeC typ tgt arity (Ast0.ConstVol(cv,ty)) | |
364 | | Ast0.BaseType(ty,strings) -> | |
365 | let arity = | |
366 | all_same opt_allowed tgt (mcode2line (List.hd strings)) | |
367 | (List.map mcode2arity strings) in | |
368 | let strings = List.map mcode strings in | |
369 | make_typeC typ tgt arity (Ast0.BaseType(ty,strings)) | |
370 | | Ast0.Signed(sign,ty) -> | |
371 | let arity = | |
372 | all_same opt_allowed tgt (mcode2line sign) [mcode2arity sign] in | |
373 | let sign = mcode sign in | |
374 | let ty = get_option (typeC arity) ty in | |
375 | make_typeC typ tgt arity (Ast0.Signed(sign,ty)) | |
376 | | Ast0.Pointer(ty,star) -> | |
377 | let arity = | |
378 | all_same opt_allowed tgt (mcode2line star) [mcode2arity star] in | |
379 | let ty = typeC arity ty in | |
380 | let star = mcode star in | |
381 | make_typeC typ tgt arity (Ast0.Pointer(ty,star)) | |
382 | | Ast0.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2) -> | |
383 | let arity = | |
384 | all_same opt_allowed tgt (mcode2line lp1) | |
385 | (List.map mcode2arity [lp1;star;rp1;lp2;rp2]) in | |
386 | let ty = typeC arity ty in | |
387 | let params = parameter_list tgt params in | |
388 | make_typeC typ tgt arity | |
389 | (Ast0.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2)) | |
390 | | Ast0.FunctionType(ty,lp1,params,rp1) -> | |
391 | let arity = | |
392 | all_same opt_allowed tgt (mcode2line lp1) | |
393 | (List.map mcode2arity [lp1;rp1]) in | |
394 | let ty = get_option (typeC arity) ty in | |
395 | let params = parameter_list tgt params in | |
396 | make_typeC typ tgt arity (Ast0.FunctionType(ty,lp1,params,rp1)) | |
397 | | Ast0.Array(ty,lb,size,rb) -> | |
398 | let arity = | |
399 | all_same opt_allowed tgt (mcode2line lb) | |
400 | [mcode2arity lb;mcode2arity rb] in | |
401 | let ty = typeC arity ty in | |
402 | let lb = mcode lb in | |
403 | let size = get_option (expression arity) size in | |
404 | let rb = mcode rb in | |
405 | make_typeC typ tgt arity (Ast0.Array(ty,lb,size,rb)) | |
406 | | Ast0.EnumName(kind,name) -> | |
407 | let arity = | |
408 | all_same opt_allowed tgt (mcode2line kind) [mcode2arity kind] in | |
409 | let kind = mcode kind in | |
410 | let name = ident false arity name in | |
411 | make_typeC typ tgt arity (Ast0.EnumName(kind,name)) | |
412 | | Ast0.StructUnionName(kind,name) -> | |
413 | let arity = | |
414 | all_same opt_allowed tgt (mcode2line kind) | |
415 | [mcode2arity kind] in | |
416 | let kind = mcode kind in | |
417 | let name = get_option (ident false arity) name in | |
418 | make_typeC typ tgt arity (Ast0.StructUnionName(kind,name)) | |
419 | | Ast0.StructUnionDef(ty,lb,decls,rb) -> | |
420 | let arity = | |
421 | all_same opt_allowed tgt (mcode2line lb) | |
422 | (List.map mcode2arity [lb;rb]) in | |
423 | let ty = typeC arity ty in | |
424 | let lb = mcode lb in | |
425 | let decls = dots (declaration tgt) decls in | |
426 | let rb = mcode rb in | |
427 | make_typeC typ tgt arity (Ast0.StructUnionDef(ty,lb,decls,rb)) | |
428 | | Ast0.TypeName(name) -> | |
429 | let arity = | |
430 | all_same opt_allowed tgt (mcode2line name) [mcode2arity name] in | |
431 | let name = mcode name in | |
432 | make_typeC typ tgt arity (Ast0.TypeName(name)) | |
433 | | Ast0.MetaType(name,pure) -> | |
434 | let arity = | |
435 | all_same opt_allowed tgt (mcode2line name) [mcode2arity name] in | |
436 | let name = mcode name in | |
437 | make_typeC typ tgt arity (Ast0.MetaType(name,pure)) | |
438 | | Ast0.DisjType(starter,types,mids,ender) -> | |
439 | let types = List.map (typeC tgt) types in | |
440 | (match List.rev types with | |
441 | _::xs -> | |
442 | if anyopt xs (function Ast0.OptType(_) -> true | _ -> false) | |
443 | then fail typ "opt only allowed in the last disjunct" | |
444 | | _ -> ()); | |
445 | let res = Ast0.DisjType(starter,types,mids,ender) in | |
446 | Ast0.rewrap typ res | |
447 | | Ast0.OptType(_) | Ast0.UniqueType(_) -> | |
448 | failwith "unexpected code" | |
449 | ||
450 | and typeC tgt ty = top_typeC tgt false ty | |
451 | ||
452 | (* --------------------------------------------------------------------- *) | |
453 | (* Variable declaration *) | |
454 | (* Even if the Cocci program specifies a list of declarations, they are | |
455 | split out into multiple declarations of a single variable each. *) | |
456 | ||
457 | and make_decl = | |
458 | make_opt_unique | |
459 | (function x -> Ast0.OptDecl x) | |
460 | (function x -> Ast0.UniqueDecl x) | |
461 | ||
462 | and declaration tgt decl = | |
463 | match Ast0.unwrap decl with | |
464 | Ast0.Init(stg,ty,id,eq,exp,sem) -> | |
465 | let arity = | |
466 | all_same true tgt (mcode2line eq) | |
467 | ((match stg with None -> [] | Some x -> [mcode2arity x]) @ | |
468 | (List.map mcode2arity [eq;sem])) in | |
469 | let stg = get_option mcode stg in | |
470 | let ty = typeC arity ty in | |
471 | let id = ident false arity id in | |
472 | let eq = mcode eq in | |
473 | let exp = initialiser arity exp in | |
474 | let sem = mcode sem in | |
475 | make_decl decl tgt arity (Ast0.Init(stg,ty,id,eq,exp,sem)) | |
476 | | Ast0.UnInit(stg,ty,id,sem) -> | |
477 | let arity = | |
478 | all_same true tgt (mcode2line sem) | |
479 | ((match stg with None -> [] | Some x -> [mcode2arity x]) @ | |
480 | [mcode2arity sem]) in | |
481 | let stg = get_option mcode stg in | |
482 | let ty = typeC arity ty in | |
483 | let id = ident false arity id in | |
484 | let sem = mcode sem in | |
485 | make_decl decl tgt arity (Ast0.UnInit(stg,ty,id,sem)) | |
486 | | Ast0.MacroDecl(name,lp,args,rp,sem) -> | |
487 | let arity = | |
488 | all_same true tgt (mcode2line lp) (List.map mcode2arity [lp;rp;sem]) in | |
489 | let name = ident false arity name in | |
490 | let lp = mcode lp in | |
491 | let args = dots (expression arity) args in | |
492 | let rp = mcode rp in | |
493 | let sem = mcode sem in | |
494 | make_decl decl tgt arity (Ast0.MacroDecl(name,lp,args,rp,sem)) | |
495 | | Ast0.TyDecl(ty,sem) -> | |
496 | let arity = | |
497 | all_same true tgt (mcode2line sem) [mcode2arity sem] in | |
498 | let ty = typeC arity ty in | |
499 | let sem = mcode sem in | |
500 | make_decl decl tgt arity (Ast0.TyDecl(ty,sem)) | |
501 | | Ast0.Typedef(stg,ty,id,sem) -> | |
502 | let arity = | |
503 | all_same true tgt (mcode2line sem) | |
504 | [mcode2arity stg;mcode2arity sem] in | |
505 | let stg = mcode stg in | |
506 | let ty = typeC arity ty in | |
507 | let id = typeC arity id in | |
508 | let sem = mcode sem in | |
509 | make_decl decl tgt arity (Ast0.Typedef(stg,ty,id,sem)) | |
510 | | Ast0.DisjDecl(starter,decls,mids,ender) -> | |
511 | let decls = List.map (declaration tgt) decls in | |
512 | (match List.rev decls with | |
513 | _::xs -> | |
514 | if anyopt xs (function Ast0.OptDecl(_) -> true | _ -> false) | |
515 | then fail decl "opt only allowed in the last disjunct" | |
516 | | _ -> ()); | |
517 | let res = Ast0.DisjDecl(starter,decls,mids,ender) in | |
518 | Ast0.rewrap decl res | |
519 | | Ast0.Ddots(dots,whencode) -> | |
520 | let arity = all_same true tgt (mcode2line dots) [mcode2arity dots] in | |
521 | let dots = mcode dots in | |
522 | let whencode = get_option (declaration Ast0.NONE) whencode in | |
523 | make_decl decl tgt arity (Ast0.Ddots(dots,whencode)) | |
524 | | Ast0.OptDecl(_) | Ast0.UniqueDecl(_) -> | |
525 | failwith "unexpected code" | |
526 | ||
527 | (* --------------------------------------------------------------------- *) | |
528 | (* Initializer *) | |
529 | ||
530 | and make_init = | |
531 | make_opt_unique | |
532 | (function x -> Ast0.OptIni x) | |
533 | (function x -> Ast0.UniqueIni x) | |
534 | ||
535 | and initialiser tgt i = | |
536 | let init_same = all_same true tgt in | |
537 | match Ast0.unwrap i with | |
538 | Ast0.MetaInit(name,pure) -> | |
539 | let arity = init_same (mcode2line name) [mcode2arity name] in | |
540 | let name = mcode name in | |
541 | make_init i tgt arity (Ast0.MetaInit(name,pure)) | |
542 | | Ast0.InitExpr(exp) -> | |
543 | Ast0.rewrap i (Ast0.InitExpr(expression tgt exp)) | |
544 | | Ast0.InitList(lb,initlist,rb) -> | |
545 | let arity = init_same (mcode2line lb) [mcode2arity lb; mcode2arity rb] in | |
546 | let lb = mcode lb in | |
547 | let initlist = dots (initialiser arity) initlist in | |
548 | let rb = mcode rb in | |
549 | make_init i tgt arity (Ast0.InitList(lb,initlist,rb)) | |
550 | | Ast0.InitGccExt(designators,eq,ini) -> | |
551 | let arity = init_same (mcode2line eq) [mcode2arity eq] in | |
552 | let designators = List.map (designator arity) designators in | |
553 | let eq = mcode eq in | |
554 | let ini = initialiser arity ini in | |
555 | make_init i tgt arity (Ast0.InitGccExt(designators,eq,ini)) | |
556 | | Ast0.InitGccName(name,eq,ini) -> | |
557 | let arity = init_same (mcode2line eq) [mcode2arity eq] in | |
558 | let name = ident true arity name in | |
559 | let eq = mcode eq in | |
560 | let ini = initialiser arity ini in | |
561 | make_init i tgt arity (Ast0.InitGccName(name,eq,ini)) | |
562 | | Ast0.IComma(cm) -> | |
563 | let arity = init_same (mcode2line cm) [mcode2arity cm] in | |
564 | let cm = mcode cm in | |
565 | make_init i tgt arity (Ast0.IComma(cm)) | |
566 | | Ast0.Idots(dots,whencode) -> | |
567 | let arity = init_same (mcode2line dots) [mcode2arity dots] in | |
568 | let dots = mcode dots in | |
569 | let whencode = get_option (initialiser Ast0.NONE) whencode in | |
570 | make_init i tgt arity (Ast0.Idots(dots,whencode)) | |
571 | | Ast0.OptIni(_) | Ast0.UniqueIni(_) -> | |
572 | failwith "unexpected code" | |
573 | ||
574 | and designator tgt d = | |
575 | let dsame = all_same false tgt in | |
576 | match d with | |
577 | Ast0.DesignatorField(dot,id) -> | |
578 | let arity = dsame (mcode2line dot) [mcode2arity dot] in | |
579 | let dot = mcode dot in | |
580 | let id = ident false arity id in | |
581 | Ast0.DesignatorField(dot,id) | |
582 | | Ast0.DesignatorIndex(lb,exp,rb) -> | |
583 | let arity = dsame (mcode2line lb) [mcode2arity lb;mcode2arity rb] in | |
584 | let lb = mcode lb in | |
585 | let exp = top_expression false arity exp in | |
586 | let rb = mcode rb in | |
587 | Ast0.DesignatorIndex(lb,exp,rb) | |
588 | | Ast0.DesignatorRange(lb,min,dots,max,rb) -> | |
589 | let arity = | |
590 | dsame (mcode2line lb) | |
591 | [mcode2arity lb;mcode2arity dots;mcode2arity rb] in | |
592 | let lb = mcode lb in | |
593 | let min = top_expression false arity min in | |
594 | let dots = mcode dots in | |
595 | let max = top_expression false arity max in | |
596 | let rb = mcode rb in | |
597 | Ast0.DesignatorRange(lb,min,dots,max,rb) | |
598 | ||
599 | (* --------------------------------------------------------------------- *) | |
600 | (* Parameter *) | |
601 | ||
602 | and make_param = | |
603 | make_opt_unique | |
604 | (function x -> Ast0.OptParam x) | |
605 | (function x -> Ast0.UniqueParam x) | |
606 | ||
607 | and parameterTypeDef tgt param = | |
608 | let param_same = all_same true tgt in | |
609 | match Ast0.unwrap param with | |
610 | Ast0.VoidParam(ty) -> Ast0.rewrap param (Ast0.VoidParam(typeC tgt ty)) | |
611 | | Ast0.Param(ty,Some id) -> | |
612 | let ty = top_typeC tgt true ty in | |
613 | let id = ident true tgt id in | |
614 | Ast0.rewrap param | |
615 | (match (Ast0.unwrap ty,Ast0.unwrap id) with | |
616 | (Ast0.OptType(ty),Ast0.OptIdent(id)) -> | |
617 | Ast0.OptParam(Ast0.rewrap param (Ast0.Param(ty,Some id))) | |
618 | | (Ast0.UniqueType(ty),Ast0.UniqueIdent(id)) -> | |
619 | Ast0.UniqueParam(Ast0.rewrap param (Ast0.Param(ty,Some id))) | |
620 | | (Ast0.OptType(ty),_) -> | |
621 | fail param "arity mismatch in param declaration" | |
622 | | (_,Ast0.OptIdent(id)) -> | |
623 | fail param "arity mismatch in param declaration" | |
624 | | _ -> Ast0.Param(ty,Some id)) | |
625 | | Ast0.Param(ty,None) -> | |
626 | let ty = top_typeC tgt true ty in | |
627 | Ast0.rewrap param | |
628 | (match Ast0.unwrap ty with | |
629 | Ast0.OptType(ty) -> | |
630 | Ast0.OptParam(Ast0.rewrap param (Ast0.Param(ty,None))) | |
631 | | Ast0.UniqueType(ty) -> | |
632 | Ast0.UniqueParam(Ast0.rewrap param (Ast0.Param(ty,None))) | |
633 | | _ -> Ast0.Param(ty,None)) | |
634 | | Ast0.MetaParam(name,pure) -> | |
635 | let arity = param_same (mcode2line name) [mcode2arity name] in | |
636 | let name = mcode name in | |
637 | make_param param tgt arity (Ast0.MetaParam(name,pure)) | |
638 | | Ast0.MetaParamList(name,lenname,pure) -> | |
639 | let arity = param_same (mcode2line name) [mcode2arity name] in | |
640 | let name = mcode name in | |
641 | make_param param tgt arity (Ast0.MetaParamList(name,lenname,pure)) | |
642 | | Ast0.PComma(cm) -> | |
643 | let arity = param_same (mcode2line cm) [mcode2arity cm] in | |
644 | let cm = mcode cm in | |
645 | make_param param tgt arity (Ast0.PComma(cm)) | |
646 | | Ast0.Pdots(dots) -> | |
647 | let arity = param_same (mcode2line dots) [mcode2arity dots] in | |
648 | let dots = mcode dots in | |
649 | make_param param tgt arity (Ast0.Pdots(dots)) | |
650 | | Ast0.Pcircles(dots) -> | |
651 | let arity = param_same (mcode2line dots) [mcode2arity dots] in | |
652 | let dots = mcode dots in | |
653 | make_param param tgt arity (Ast0.Pcircles(dots)) | |
654 | | Ast0.OptParam(_) | Ast0.UniqueParam(_) -> | |
655 | failwith "unexpected code" | |
656 | ||
657 | and parameter_list tgt = dots (parameterTypeDef tgt) | |
658 | ||
659 | (* --------------------------------------------------------------------- *) | |
660 | (* Top-level code *) | |
661 | ||
662 | and make_rule_elem x = | |
663 | make_opt_unique | |
664 | (function x -> Ast0.OptStm x) | |
665 | (function x -> Ast0.UniqueStm x) | |
666 | x | |
667 | ||
668 | and statement tgt stm = | |
669 | let stm_same = all_same true tgt in | |
670 | match Ast0.unwrap stm with | |
671 | Ast0.Decl(bef,decl) -> | |
672 | let new_decl = declaration tgt decl in | |
673 | Ast0.rewrap stm | |
674 | (match Ast0.unwrap new_decl with | |
675 | Ast0.OptDecl(decl) -> | |
676 | Ast0.OptStm(Ast0.rewrap stm (Ast0.Decl(bef,decl))) | |
677 | | Ast0.UniqueDecl(decl) -> | |
678 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.Decl(bef,decl))) | |
679 | | _ -> Ast0.Decl(bef,new_decl)) | |
680 | | Ast0.Seq(lbrace,body,rbrace) -> | |
681 | let arity = | |
682 | stm_same (mcode2line lbrace) | |
683 | [mcode2arity lbrace; mcode2arity rbrace] in | |
684 | let lbrace = mcode lbrace in | |
685 | let body = dots (statement arity) body in | |
686 | let rbrace = mcode rbrace in | |
687 | make_rule_elem stm tgt arity (Ast0.Seq(lbrace,body,rbrace)) | |
688 | | Ast0.ExprStatement(exp,sem) -> | |
689 | let arity = stm_same (mcode2line sem) [mcode2arity sem] in | |
690 | let exp = expression arity exp in | |
691 | let sem = mcode sem in | |
692 | make_rule_elem stm tgt arity (Ast0.ExprStatement(exp,sem)) | |
693 | | Ast0.IfThen(iff,lp,exp,rp,branch,aft) -> | |
694 | let arity = | |
695 | stm_same (mcode2line iff) (List.map mcode2arity [iff;lp;rp]) in | |
696 | let iff = mcode iff in | |
697 | let lp = mcode lp in | |
698 | let exp = expression arity exp in | |
699 | let rp = mcode rp in | |
700 | let branch = statement arity branch in | |
701 | make_rule_elem stm tgt arity (Ast0.IfThen(iff,lp,exp,rp,branch,aft)) | |
702 | | Ast0.IfThenElse(iff,lp,exp,rp,branch1,els,branch2,aft) -> | |
703 | let arity = | |
704 | stm_same (mcode2line iff) (List.map mcode2arity [iff;lp;rp;els]) in | |
705 | let iff = mcode iff in | |
706 | let lp = mcode lp in | |
707 | let exp = expression arity exp in | |
708 | let rp = mcode rp in | |
709 | let branch1 = statement arity branch1 in | |
710 | let els = mcode els in | |
711 | let branch2 = statement arity branch2 in | |
712 | make_rule_elem stm tgt arity | |
713 | (Ast0.IfThenElse(iff,lp,exp,rp,branch1,els,branch2,aft)) | |
714 | | Ast0.While(wh,lp,exp,rp,body,aft) -> | |
715 | let arity = | |
716 | stm_same (mcode2line wh) | |
717 | (List.map mcode2arity [wh;lp;rp]) in | |
718 | let wh = mcode wh in | |
719 | let lp = mcode lp in | |
720 | let exp = expression arity exp in | |
721 | let rp = mcode rp in | |
722 | let body = statement arity body in | |
723 | make_rule_elem stm tgt arity (Ast0.While(wh,lp,exp,rp,body,aft)) | |
724 | | Ast0.Do(d,body,wh,lp,exp,rp,sem) -> | |
725 | let arity = | |
726 | stm_same (mcode2line wh) (List.map mcode2arity [d;wh;lp;rp;sem]) in | |
727 | let d = mcode d in | |
728 | let body = statement arity body in | |
729 | let wh = mcode wh in | |
730 | let lp = mcode lp in | |
731 | let exp = expression arity exp in | |
732 | let rp = mcode rp in | |
733 | let sem = mcode sem in | |
734 | make_rule_elem stm tgt arity (Ast0.Do(d,body,wh,lp,exp,rp,sem)) | |
735 | | Ast0.For(fr,lp,exp1,sem1,exp2,sem2,exp3,rp,body,aft) -> | |
736 | let arity = | |
737 | stm_same (mcode2line fr) (List.map mcode2arity [fr;lp;sem1;sem2;rp]) in | |
738 | let fr = mcode fr in | |
739 | let lp = mcode lp in | |
740 | let exp1 = get_option (expression arity) exp1 in | |
741 | let sem1 = mcode sem1 in | |
742 | let exp2 = get_option (expression arity) exp2 in | |
743 | let sem2= mcode sem2 in | |
744 | let exp3 = get_option (expression arity) exp3 in | |
745 | let rp = mcode rp in | |
746 | let body = statement arity body in | |
747 | make_rule_elem stm tgt arity | |
748 | (Ast0.For(fr,lp,exp1,sem1,exp2,sem2,exp3,rp,body,aft)) | |
749 | | Ast0.Iterator(nm,lp,args,rp,body,aft) -> | |
750 | let arity = stm_same (mcode2line lp) (List.map mcode2arity [lp;rp]) in | |
751 | let nm = ident false arity nm in | |
752 | let lp = mcode lp in | |
753 | let args = dots (expression arity) args in | |
754 | let rp = mcode rp in | |
755 | let body = statement arity body in | |
756 | make_rule_elem stm tgt arity (Ast0.Iterator(nm,lp,args,rp,body,aft)) | |
757 | | Ast0.Switch(switch,lp,exp,rp,lb,cases,rb) -> | |
758 | let arity = | |
759 | stm_same (mcode2line switch) | |
760 | (List.map mcode2arity [switch;lp;rp;lb;rb]) in | |
761 | let switch = mcode switch in | |
762 | let lp = mcode lp in | |
763 | let exp = expression arity exp in | |
764 | let rp = mcode rp in | |
765 | let lb = mcode lb in | |
766 | let cases = dots (case_line arity) cases in | |
767 | let rb = mcode rb in | |
768 | make_rule_elem stm tgt arity | |
769 | (Ast0.Switch(switch,lp,exp,rp,lb,cases,rb)) | |
770 | | Ast0.Break(br,sem) -> | |
771 | let arity = stm_same (mcode2line br) (List.map mcode2arity [br;sem]) in | |
772 | let br = mcode br in | |
773 | let sem = mcode sem in | |
774 | make_rule_elem stm tgt arity (Ast0.Break(br,sem)) | |
775 | | Ast0.Continue(cont,sem) -> | |
776 | let arity = | |
777 | stm_same (mcode2line cont) (List.map mcode2arity [cont;sem]) in | |
778 | let cont = mcode cont in | |
779 | let sem = mcode sem in | |
780 | make_rule_elem stm tgt arity (Ast0.Continue(cont,sem)) | |
781 | | Ast0.Label(l,dd) -> | |
782 | let arity = mcode2arity dd in | |
783 | let l = ident false tgt l in | |
784 | let dd = mcode dd in | |
785 | make_rule_elem stm tgt arity (Ast0.Label(l,dd)) | |
786 | | Ast0.Goto(goto,l,sem) -> | |
787 | let arity = | |
788 | stm_same (mcode2line goto) (List.map mcode2arity [goto;sem]) in | |
789 | let goto = mcode goto in | |
790 | let l = ident false tgt l in | |
791 | let sem = mcode sem in | |
792 | make_rule_elem stm tgt arity (Ast0.Goto(goto,l,sem)) | |
793 | | Ast0.Return(ret,sem) -> | |
794 | let arity = stm_same (mcode2line ret) (List.map mcode2arity [ret;sem]) in | |
795 | let ret = mcode ret in | |
796 | let sem = mcode sem in | |
797 | make_rule_elem stm tgt arity (Ast0.Return(ret,sem)) | |
798 | | Ast0.ReturnExpr(ret,exp,sem) -> | |
799 | let arity = stm_same (mcode2line ret) (List.map mcode2arity [ret;sem]) in | |
800 | let ret = mcode ret in | |
801 | let exp = expression arity exp in | |
802 | let sem = mcode sem in | |
803 | make_rule_elem stm tgt arity (Ast0.ReturnExpr(ret,exp,sem)) | |
804 | | Ast0.MetaStmt(name,pure) -> | |
805 | let arity = stm_same (mcode2line name) [mcode2arity name] in | |
806 | let name = mcode name in | |
807 | make_rule_elem stm tgt arity (Ast0.MetaStmt(name,pure)) | |
808 | | Ast0.MetaStmtList(name,pure) -> | |
809 | let arity = stm_same (mcode2line name) [mcode2arity name] in | |
810 | let name = mcode name in | |
811 | make_rule_elem stm tgt arity (Ast0.MetaStmtList(name,pure)) | |
812 | | Ast0.Exp(exp) -> | |
813 | let new_exp = top_expression true tgt exp in | |
814 | Ast0.rewrap stm | |
815 | (match Ast0.unwrap new_exp with | |
816 | Ast0.OptExp(exp) -> | |
817 | Ast0.OptStm(Ast0.rewrap stm (Ast0.Exp(exp))) | |
818 | | Ast0.UniqueExp(exp) -> | |
819 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.Exp(exp))) | |
820 | | _ -> Ast0.Exp(new_exp)) | |
821 | | Ast0.TopExp(exp) -> | |
822 | let new_exp = top_expression true tgt exp in | |
823 | Ast0.rewrap stm | |
824 | (match Ast0.unwrap new_exp with | |
825 | Ast0.OptExp(exp) -> | |
826 | Ast0.OptStm(Ast0.rewrap stm (Ast0.TopExp(exp))) | |
827 | | Ast0.UniqueExp(exp) -> | |
828 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.TopExp(exp))) | |
829 | | _ -> Ast0.TopExp(new_exp)) | |
830 | | Ast0.Ty(ty) -> | |
831 | let new_ty = typeC tgt ty in (* opt makes no sense alone at top level *) | |
832 | Ast0.rewrap stm | |
833 | (match Ast0.unwrap new_ty with | |
834 | Ast0.OptType(ty) -> | |
835 | Ast0.OptStm(Ast0.rewrap stm (Ast0.Ty(ty))) | |
836 | | Ast0.UniqueType(ty) -> | |
837 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.Ty(ty))) | |
838 | | _ -> Ast0.Ty(new_ty)) | |
839 | | Ast0.TopInit(init) -> | |
840 | let new_init = initialiser tgt init in | |
841 | Ast0.rewrap stm | |
842 | (match Ast0.unwrap new_init with | |
843 | Ast0.OptIni(init) -> | |
844 | Ast0.OptStm(Ast0.rewrap stm (Ast0.TopInit(init))) | |
845 | | Ast0.UniqueIni(init) -> | |
846 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.TopInit(init))) | |
847 | | _ -> Ast0.TopInit(new_init)) | |
848 | | Ast0.Disj(starter,rule_elem_dots_list,mids,ender) -> | |
849 | let stms = | |
850 | List.map (function x -> concat_dots (statement tgt) x) | |
851 | rule_elem_dots_list in | |
852 | let (found_opt,unopt) = | |
853 | List.fold_left | |
854 | (function (found_opt,lines) -> | |
855 | function x -> | |
856 | let rebuild l = | |
857 | (* previously just checked the last thing in the list, | |
858 | but everything should be optional for the whole thing to | |
859 | be optional *) | |
860 | let is_opt x = | |
861 | match Ast0.unwrap x with | |
862 | Ast0.OptStm(x) -> true | |
863 | | _ -> false in | |
864 | let unopt x = | |
865 | match Ast0.unwrap x with | |
866 | Ast0.OptStm(x) -> x | |
867 | | _ -> x in | |
868 | if List.for_all is_opt l | |
869 | then (true,List.map unopt l) | |
870 | else (false, l) in | |
871 | let (l,k) = | |
872 | match Ast0.unwrap x with | |
873 | Ast0.DOTS(l) -> | |
874 | (l,function l -> Ast0.rewrap x (Ast0.DOTS l)) | |
875 | | Ast0.CIRCLES(l) -> | |
876 | (l,function l -> Ast0.rewrap x (Ast0.CIRCLES l)) | |
877 | | Ast0.STARS(l) -> | |
878 | (l,function l -> Ast0.rewrap x (Ast0.STARS l)) in | |
879 | let (found_opt,l) = rebuild l in | |
880 | (found_opt,(k l)::lines)) | |
881 | (false,[]) stms in | |
882 | let unopt = List.rev unopt in | |
883 | if found_opt | |
884 | then | |
885 | make_rule_elem stm tgt Ast0.OPT (Ast0.Disj(starter,unopt,mids,ender)) | |
886 | else Ast0.rewrap stm (Ast0.Disj(starter,stms,mids,ender)) | |
887 | | Ast0.Nest(starter,rule_elem_dots,ender,whn,multi) -> | |
888 | let new_rule_elem_dots = | |
889 | concat_dots (statement Ast0.NONE) rule_elem_dots in | |
890 | let whn = | |
891 | List.map | |
892 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) | |
893 | (expression Ast0.NONE)) | |
894 | whn in | |
895 | Ast0.rewrap stm | |
896 | (Ast0.Nest(starter,new_rule_elem_dots,ender,whn,multi)) | |
897 | | Ast0.Dots(dots,whn) -> | |
898 | let arity = stm_same (mcode2line dots) [mcode2arity dots] in | |
899 | let dots = mcode dots in | |
900 | let whn = | |
901 | List.map | |
902 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) | |
903 | (expression Ast0.NONE)) | |
904 | whn in | |
905 | make_rule_elem stm tgt arity (Ast0.Dots(dots,whn)) | |
906 | | Ast0.Circles(dots,whn) -> | |
907 | let arity = stm_same (mcode2line dots) [mcode2arity dots] in | |
908 | let dots = mcode dots in | |
909 | let whn = | |
910 | List.map | |
911 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) | |
912 | (expression Ast0.NONE)) | |
913 | whn in | |
914 | make_rule_elem stm tgt arity (Ast0.Circles(dots,whn)) | |
915 | | Ast0.Stars(dots,whn) -> | |
916 | let arity = stm_same (mcode2line dots) [mcode2arity dots] in | |
917 | let dots = mcode dots in | |
918 | let whn = | |
919 | List.map | |
920 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) | |
921 | (expression Ast0.NONE)) | |
922 | whn in | |
923 | make_rule_elem stm tgt arity (Ast0.Stars(dots,whn)) | |
924 | | Ast0.FunDecl(bef,fi,name,lp,params,rp,lbrace,body,rbrace) -> | |
925 | let arity = | |
926 | all_same true tgt (mcode2line lp) | |
927 | ((List.map mcode2arity [lp;rp;lbrace;rbrace]) @ (fninfo2arity fi)) in | |
928 | let fi = List.map (fninfo arity) fi in | |
929 | let name = ident false arity name in | |
930 | let lp = mcode lp in | |
931 | let params = parameter_list arity params in | |
932 | let rp = mcode rp in | |
933 | let lbrace = mcode lbrace in | |
934 | let body = dots (statement arity) body in | |
935 | let rbrace = mcode rbrace in | |
936 | make_rule_elem stm tgt arity | |
937 | (Ast0.FunDecl(bef,fi,name,lp,params,rp,lbrace,body,rbrace)) | |
938 | | Ast0.Include(inc,s) -> | |
939 | let arity = | |
940 | all_same true tgt (mcode2line inc) [mcode2arity inc; mcode2arity s] in | |
941 | let inc = mcode inc in | |
942 | let s = mcode s in | |
943 | make_rule_elem stm tgt arity (Ast0.Include(inc,s)) | |
944 | | Ast0.Define(def,id,params,body) -> | |
945 | let arity = all_same true tgt (mcode2line def) [mcode2arity def] in | |
946 | let def = mcode def in | |
947 | let id = ident false arity id in | |
948 | let params = define_parameters arity params in | |
949 | let body = dots (statement arity) body in | |
950 | make_rule_elem stm tgt arity (Ast0.Define(def,id,params,body)) | |
951 | | Ast0.OptStm(_) | Ast0.UniqueStm(_) -> | |
952 | failwith "unexpected code" | |
953 | ||
954 | and define_parameters tgt params = | |
955 | match Ast0.unwrap params with | |
956 | Ast0.NoParams -> params | |
957 | | Ast0.DParams(lp,params,rp) -> | |
958 | let arity = | |
959 | all_same true tgt (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
960 | let lp = mcode lp in | |
961 | let params = dots (define_param arity) params in | |
962 | let rp = mcode rp in | |
963 | Ast0.rewrap params (Ast0.DParams(lp,params,rp)) | |
964 | ||
965 | and make_define_param x = | |
966 | make_opt_unique | |
967 | (function x -> Ast0.OptDParam x) | |
968 | (function x -> Ast0.UniqueDParam x) | |
969 | x | |
970 | ||
971 | and define_param tgt param = | |
972 | match Ast0.unwrap param with | |
973 | Ast0.DParam(id) -> | |
974 | let new_id = ident true tgt id in | |
975 | Ast0.rewrap param | |
976 | (match Ast0.unwrap new_id with | |
977 | Ast0.OptIdent(id) -> | |
978 | Ast0.OptDParam(Ast0.rewrap param (Ast0.DParam(id))) | |
979 | | Ast0.UniqueIdent(decl) -> | |
980 | Ast0.UniqueDParam(Ast0.rewrap param (Ast0.DParam(id))) | |
981 | | _ -> Ast0.DParam(new_id)) | |
982 | | Ast0.DPComma(cm) -> | |
983 | let arity = | |
984 | all_same true tgt (mcode2line cm) [mcode2arity cm] in | |
985 | let cm = mcode cm in | |
986 | make_define_param param tgt arity (Ast0.DPComma(cm)) | |
987 | | Ast0.DPdots(dots) -> | |
988 | let arity = | |
989 | all_same true tgt (mcode2line dots) [mcode2arity dots] in | |
990 | let dots = mcode dots in | |
991 | make_define_param param tgt arity (Ast0.DPdots(dots)) | |
992 | | Ast0.DPcircles(circles) -> | |
993 | let arity = | |
994 | all_same true tgt (mcode2line circles) [mcode2arity circles] in | |
995 | let circles = mcode circles in | |
996 | make_define_param param tgt arity (Ast0.DPcircles(circles)) | |
997 | | Ast0.OptDParam(dp) | Ast0.UniqueDParam(dp) -> | |
998 | failwith "unexpected code" | |
999 | ||
1000 | and fninfo arity = function | |
1001 | Ast0.FStorage(stg) -> Ast0.FStorage(mcode stg) | |
1002 | | Ast0.FType(ty) -> Ast0.FType(typeC arity ty) | |
1003 | | Ast0.FInline(inline) -> Ast0.FInline(mcode inline) | |
1004 | | Ast0.FAttr(attr) -> Ast0.FAttr(mcode attr) | |
1005 | ||
1006 | and fninfo2arity fninfo = | |
1007 | List.concat | |
1008 | (List.map | |
1009 | (function | |
1010 | Ast0.FStorage(stg) -> [mcode2arity stg] | |
1011 | | Ast0.FType(ty) -> [] | |
1012 | | Ast0.FInline(inline) -> [mcode2arity inline] | |
1013 | | Ast0.FAttr(attr) -> [mcode2arity attr]) | |
1014 | fninfo) | |
1015 | ||
1016 | and whencode notfn alwaysfn expression = function | |
1017 | Ast0.WhenNot a -> Ast0.WhenNot (notfn a) | |
1018 | | Ast0.WhenAlways a -> Ast0.WhenAlways (alwaysfn a) | |
1019 | | Ast0.WhenModifier(x) -> Ast0.WhenModifier(x) | |
1020 | | Ast0.WhenNotTrue a -> Ast0.WhenNotTrue (expression a) | |
1021 | | Ast0.WhenNotFalse a -> Ast0.WhenNotFalse (expression a) | |
1022 | ||
1023 | and make_case_line = | |
1024 | make_opt_unique | |
1025 | (function x -> Ast0.OptCase x) | |
1026 | (function x -> failwith "unique not allowed for case_line") | |
1027 | ||
1028 | and case_line tgt c = | |
1029 | match Ast0.unwrap c with | |
1030 | Ast0.Default(def,colon,code) -> | |
1031 | let arity = | |
1032 | all_same true tgt (mcode2line def) | |
1033 | [mcode2arity def; mcode2arity colon] in | |
1034 | let def = mcode def in | |
1035 | let colon = mcode colon in | |
1036 | let code = dots (statement arity) code in | |
1037 | make_case_line c tgt arity (Ast0.Default(def,colon,code)) | |
1038 | | Ast0.Case(case,exp,colon,code) -> | |
1039 | let arity = | |
1040 | all_same true tgt (mcode2line case) | |
1041 | [mcode2arity case; mcode2arity colon] in | |
1042 | let case = mcode case in | |
1043 | let exp = expression arity exp in | |
1044 | let colon = mcode colon in | |
1045 | let code = dots (statement arity) code in | |
1046 | make_case_line c tgt arity (Ast0.Case(case,exp,colon,code)) | |
1047 | | Ast0.OptCase(_) -> failwith "unexpected OptCase" | |
1048 | ||
1049 | (* --------------------------------------------------------------------- *) | |
1050 | (* Function declaration *) | |
1051 | (* Haven't thought much about arity here... *) | |
1052 | ||
1053 | let top_level tgt t = | |
1054 | Ast0.rewrap t | |
1055 | (match Ast0.unwrap t with | |
1056 | Ast0.FILEINFO(old_file,new_file) -> | |
1057 | if mcode2arity old_file = Ast0.NONE && mcode2arity new_file = Ast0.NONE | |
1058 | then Ast0.FILEINFO(mcode old_file,mcode new_file) | |
1059 | else fail t "unexpected arity for file info" | |
1060 | | Ast0.DECL(stmt) -> | |
1061 | Ast0.DECL(statement tgt stmt) | |
1062 | | Ast0.CODE(rule_elem_dots) -> | |
1063 | Ast0.CODE(concat_dots (statement tgt) rule_elem_dots) | |
1064 | | Ast0.ERRORWORDS(exps) -> | |
1065 | Ast0.ERRORWORDS(List.map (top_expression false Ast0.NONE) exps) | |
1066 | | Ast0.OTHER(_) -> fail t "eliminated by top_level") | |
1067 | ||
1068 | let rule tgt = List.map (top_level tgt) | |
1069 | ||
1070 | (* --------------------------------------------------------------------- *) | |
1071 | (* Entry points *) | |
1072 | ||
1073 | let minus_arity code = | |
1074 | rule Ast0.NONE code |