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34e49164 C |
1 | (* Arities matter for the minus slice, but not for the plus slice. *) |
2 | ||
3 | (* ? only allowed on rule_elems, and on subterms if the context is ? also. *) | |
4 | ||
5 | module Ast0 = Ast0_cocci | |
6 | module Ast = Ast_cocci | |
7 | ||
8 | (* --------------------------------------------------------------------- *) | |
9 | ||
10 | let warning s = Printf.printf "warning: %s\n" s | |
11 | ||
12 | let fail w str = | |
13 | failwith | |
0708f913 C |
14 | (Printf.sprintf "cocci line %d: %s" |
15 | ((Ast0.get_info w).Ast0.pos_info.Ast0.line_start) | |
34e49164 C |
16 | str) |
17 | ||
18 | let make_opt_unique optfn uniquefn info tgt arity term = | |
19 | let term = Ast0.rewrap info term in | |
20 | if tgt = arity | |
21 | then term | |
22 | else (* tgt must be NONE *) | |
23 | match arity with | |
24 | Ast0.OPT -> Ast0.copywrap info (optfn term) | |
25 | | Ast0.UNIQUE -> Ast0.copywrap info (uniquefn term) | |
26 | | Ast0.NONE -> failwith "tgt must be NONE" | |
27 | ||
28 | let all_same opt_allowed tgt line arities = | |
29 | let tgt = | |
30 | match tgt with | |
31 | Ast0.NONE -> | |
32 | (match List.hd arities with | |
33 | Ast0.OPT when not opt_allowed -> | |
34 | failwith "opt only allowed for the elements of a statement list" | |
35 | | x -> x) | |
36 | | _ -> tgt in | |
37 | if not(List.for_all (function x -> x = tgt) arities) | |
38 | then warning (Printf.sprintf "incompatible arity found on line %d" line); | |
39 | tgt | |
40 | ||
41 | let get_option fn = function | |
42 | None -> None | |
43 | | Some x -> Some (fn x) | |
44 | ||
45 | let anyopt l fn = List.exists (function w -> fn(Ast0.unwrap w)) l | |
46 | ||
47 | let allopt l fn = | |
48 | let rec loop = function | |
49 | [] -> [] | |
50 | | x::xs -> | |
51 | match fn (Ast0.unwrap x) with | |
52 | Some x -> x :: (loop xs) | |
53 | | None -> [] in | |
54 | let res = loop l in | |
55 | if List.length res = List.length l then Some res else None | |
56 | ||
57 | (* --------------------------------------------------------------------- *) | |
58 | (* --------------------------------------------------------------------- *) | |
59 | (* Mcode *) | |
60 | ||
708f4980 C |
61 | let mcode2line (_,_,info,_,_,_) = info.Ast0.pos_info.Ast0.line_start |
62 | let mcode2arity (_,arity,_,_,_,_) = arity | |
34e49164 C |
63 | |
64 | let mcode x = x (* nothing to do ... *) | |
65 | ||
66 | (* --------------------------------------------------------------------- *) | |
67 | (* Dots *) | |
68 | ||
69 | let dots fn d = | |
70 | Ast0.rewrap d | |
71 | (match Ast0.unwrap d with | |
72 | Ast0.DOTS(x) -> Ast0.DOTS(List.map fn x) | |
73 | | Ast0.CIRCLES(x) -> Ast0.CIRCLES(List.map fn x) | |
74 | | Ast0.STARS(x) -> Ast0.STARS(List.map fn x)) | |
75 | ||
76 | let only_dots l = | |
77 | not | |
78 | (List.exists | |
79 | (function x -> | |
80 | match Ast0.unwrap x with | |
81 | Ast0.Circles(_,_) | Ast0.Stars(_,_) -> true | |
82 | | _ -> false) | |
83 | l) | |
84 | ||
85 | let only_circles l = | |
86 | not (List.exists | |
87 | (function x -> | |
88 | match Ast0.unwrap x with | |
89 | Ast0.Dots(_,_) | Ast0.Stars(_,_) -> true | |
90 | | _ -> false) | |
91 | l) | |
92 | ||
93 | let only_stars l = | |
94 | not (List.exists | |
95 | (function x -> | |
96 | match Ast0.unwrap x with | |
97 | Ast0.Dots(_,_) | Ast0.Circles(_,_) -> true | |
98 | | _ -> false) | |
99 | l) | |
100 | ||
101 | let concat_dots fn d = | |
102 | Ast0.rewrap d | |
103 | (match Ast0.unwrap d with | |
104 | Ast0.DOTS(x) -> | |
105 | let l = List.map fn x in | |
106 | if only_dots l | |
107 | then Ast0.DOTS(l) | |
108 | else fail d "inconsistent dots usage" | |
109 | | Ast0.CIRCLES(x) -> | |
110 | let l = List.map fn x in | |
111 | if only_circles l | |
112 | then Ast0.CIRCLES(l) | |
113 | else fail d "inconsistent dots usage" | |
114 | | Ast0.STARS(x) -> | |
115 | let l = List.map fn x in | |
116 | if only_stars l | |
117 | then Ast0.STARS(l) | |
118 | else fail d "inconsistent dots usage") | |
119 | ||
120 | let flat_concat_dots fn d = | |
121 | match Ast0.unwrap d with | |
122 | Ast0.DOTS(x) -> List.map fn x | |
123 | | Ast0.CIRCLES(x) -> List.map fn x | |
124 | | Ast0.STARS(x) -> List.map fn x | |
125 | ||
126 | (* --------------------------------------------------------------------- *) | |
127 | (* Identifier *) | |
128 | ||
129 | let make_id = | |
130 | make_opt_unique | |
131 | (function x -> Ast0.OptIdent x) | |
132 | (function x -> Ast0.UniqueIdent x) | |
133 | ||
134 | let ident opt_allowed tgt i = | |
135 | match Ast0.unwrap i with | |
951c7801 C |
136 | Ast0.Id(name) -> |
137 | let arity = | |
138 | all_same opt_allowed tgt (mcode2line name) | |
139 | [mcode2arity name] in | |
140 | let name = mcode name in | |
141 | make_id i tgt arity (Ast0.Id(name)) | |
142 | | Ast0.MetaId(name,constraints,pure) -> | |
143 | let arity = | |
144 | all_same opt_allowed tgt (mcode2line name) | |
145 | [mcode2arity name] in | |
146 | let name = mcode name in | |
147 | make_id i tgt arity (Ast0.MetaId(name,constraints,pure)) | |
148 | | Ast0.MetaFunc(name,constraints,pure) -> | |
149 | let arity = | |
150 | all_same opt_allowed tgt (mcode2line name) | |
151 | [mcode2arity name] in | |
152 | let name = mcode name in | |
153 | make_id i tgt arity (Ast0.MetaFunc(name,constraints,pure)) | |
154 | | Ast0.MetaLocalFunc(name,constraints,pure) -> | |
155 | let arity = | |
156 | all_same opt_allowed tgt (mcode2line name) | |
157 | [mcode2arity name] in | |
158 | let name = mcode name in | |
159 | make_id i tgt arity (Ast0.MetaLocalFunc(name,constraints,pure)) | |
160 | | Ast0.OptIdent(_) | Ast0.UniqueIdent(_) -> | |
161 | failwith "unexpected code" | |
34e49164 C |
162 | |
163 | (* --------------------------------------------------------------------- *) | |
164 | (* Expression *) | |
165 | ||
166 | let make_exp = | |
167 | make_opt_unique | |
168 | (function x -> Ast0.OptExp x) | |
169 | (function x -> Ast0.UniqueExp x) | |
170 | ||
171 | let rec top_expression opt_allowed tgt expr = | |
172 | let exp_same = all_same opt_allowed tgt in | |
173 | match Ast0.unwrap expr with | |
174 | Ast0.Ident(id) -> | |
175 | let new_id = ident opt_allowed tgt id in | |
176 | Ast0.rewrap expr | |
177 | (match Ast0.unwrap new_id with | |
178 | Ast0.OptIdent(id) -> | |
179 | Ast0.OptExp(Ast0.rewrap expr (Ast0.Ident(id))) | |
180 | | Ast0.UniqueIdent(id) -> | |
181 | Ast0.UniqueExp(Ast0.rewrap expr (Ast0.Ident(id))) | |
182 | | _ -> Ast0.Ident(new_id)) | |
183 | | Ast0.Constant(const) -> | |
184 | let arity = exp_same (mcode2line const) [mcode2arity const] in | |
185 | let const = mcode const in | |
186 | make_exp expr tgt arity (Ast0.Constant(const)) | |
187 | | Ast0.FunCall(fn,lp,args,rp) -> | |
188 | let arity = exp_same (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
189 | let fn = expression arity fn in | |
190 | let lp = mcode lp in | |
191 | let args = dots (expression arity) args in | |
192 | let rp = mcode rp in | |
193 | make_exp expr tgt arity (Ast0.FunCall(fn,lp,args,rp)) | |
194 | | Ast0.Assignment(left,op,right,simple) -> | |
195 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
196 | let left = expression arity left in | |
197 | let op = mcode op in | |
198 | let right = expression arity right in | |
199 | make_exp expr tgt arity (Ast0.Assignment(left,op,right,simple)) | |
200 | | Ast0.CondExpr(exp1,why,exp2,colon,exp3) -> | |
201 | let arity = | |
202 | exp_same (mcode2line why) [mcode2arity why; mcode2arity colon] in | |
203 | let exp1 = expression arity exp1 in | |
204 | let why = mcode why in | |
205 | let exp2 = get_option (expression arity) exp2 in | |
206 | let colon = mcode colon in | |
207 | let exp3 = expression arity exp3 in | |
208 | make_exp expr tgt arity (Ast0.CondExpr(exp1,why,exp2,colon,exp3)) | |
209 | | Ast0.Postfix(exp,op) -> | |
210 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
211 | let exp = expression arity exp in | |
212 | let op = mcode op in | |
213 | make_exp expr tgt arity (Ast0.Postfix(exp,op)) | |
214 | | Ast0.Infix(exp,op) -> | |
215 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
216 | let exp = expression arity exp in | |
217 | let op = mcode op in | |
218 | make_exp expr tgt arity (Ast0.Infix(exp,op)) | |
219 | | Ast0.Unary(exp,op) -> | |
220 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
221 | let exp = expression arity exp in | |
222 | let op = mcode op in | |
223 | make_exp expr tgt arity (Ast0.Unary(exp,op)) | |
224 | | Ast0.Binary(left,op,right) -> | |
225 | let arity = exp_same (mcode2line op) [mcode2arity op] in | |
226 | let left = expression arity left in | |
227 | let op = mcode op in | |
228 | let right = expression arity right in | |
229 | make_exp expr tgt arity (Ast0.Binary(left,op,right)) | |
230 | | Ast0.Nested(left,op,right) -> failwith "nested in arity not possible" | |
231 | | Ast0.Paren(lp,exp,rp) -> | |
232 | let arity = exp_same (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
233 | let lp = mcode lp in | |
234 | let exp = expression arity exp in | |
235 | let rp = mcode rp in | |
236 | make_exp expr tgt arity (Ast0.Paren(lp,exp,rp)) | |
237 | | Ast0.ArrayAccess(exp1,lb,exp2,rb) -> | |
238 | let arity = exp_same (mcode2line lb) [mcode2arity lb; mcode2arity rb] in | |
239 | let exp1 = expression arity exp1 in | |
240 | let lb = mcode lb in | |
241 | let exp2 = expression arity exp2 in | |
242 | let rb = mcode rb in | |
243 | make_exp expr tgt arity (Ast0.ArrayAccess(exp1,lb,exp2,rb)) | |
244 | | Ast0.RecordAccess(exp,pt,field) -> | |
245 | let arity = exp_same (mcode2line pt) [mcode2arity pt] in | |
246 | let exp = expression arity exp in | |
247 | let pt = mcode pt in | |
248 | let field = ident false arity field in | |
249 | make_exp expr tgt arity (Ast0.RecordAccess(exp,pt,field)) | |
250 | | Ast0.RecordPtAccess(exp,ar,field) -> | |
251 | let arity = exp_same (mcode2line ar) [mcode2arity ar] in | |
252 | let exp = expression arity exp in | |
253 | let ar = mcode ar in | |
254 | let field = ident false arity field in | |
255 | make_exp expr tgt arity (Ast0.RecordPtAccess(exp,ar,field)) | |
256 | | Ast0.Cast(lp,ty,rp,exp) -> | |
257 | let arity = exp_same (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
258 | let lp = mcode lp in | |
259 | let ty = typeC arity ty in | |
260 | let rp = mcode rp in | |
261 | let exp = expression arity exp in | |
262 | make_exp expr tgt arity (Ast0.Cast(lp,ty,rp,exp)) | |
263 | | Ast0.SizeOfExpr(szf,exp) -> | |
264 | let arity = exp_same (mcode2line szf) [mcode2arity szf] in | |
265 | let szf = mcode szf in | |
266 | let exp = expression arity exp in | |
267 | make_exp expr tgt arity (Ast0.SizeOfExpr(szf,exp)) | |
268 | | Ast0.SizeOfType(szf,lp,ty,rp) -> | |
269 | let arity = | |
270 | exp_same (mcode2line szf) (List.map mcode2arity [szf;lp;rp]) in | |
271 | let szf = mcode szf in | |
272 | let lp = mcode lp in | |
273 | let ty = typeC arity ty in | |
274 | let rp = mcode rp in | |
275 | make_exp expr tgt arity (Ast0.SizeOfType(szf,lp,ty,rp)) | |
276 | | Ast0.TypeExp(ty) -> Ast0.rewrap expr (Ast0.TypeExp(typeC tgt ty)) | |
277 | | Ast0.MetaErr(name,constraints,pure) -> | |
278 | let arity = exp_same (mcode2line name) [mcode2arity name] in | |
279 | let name = mcode name in | |
280 | make_exp expr tgt arity (Ast0.MetaErr(name,constraints,pure)) | |
281 | | Ast0.MetaExpr(name,constraints,ty,form,pure) -> | |
282 | let arity = exp_same (mcode2line name) [mcode2arity name] in | |
283 | let name = mcode name in | |
284 | make_exp expr tgt arity (Ast0.MetaExpr(name,constraints,ty,form,pure)) | |
285 | | Ast0.MetaExprList(name,lenname,pure) -> | |
286 | let arity = exp_same (mcode2line name) [mcode2arity name] in | |
287 | let name = mcode name in | |
288 | make_exp expr tgt arity (Ast0.MetaExprList(name,lenname,pure)) | |
289 | | Ast0.EComma(cm) -> | |
290 | let arity = exp_same (mcode2line cm) [mcode2arity cm] in | |
291 | let cm = mcode cm in | |
292 | make_exp expr tgt arity (Ast0.EComma(cm)) | |
293 | | Ast0.DisjExpr(starter,exps,mids,ender) -> | |
294 | let exps = List.map (top_expression opt_allowed tgt) exps in | |
295 | (match List.rev exps with | |
296 | _::xs -> | |
297 | if anyopt xs (function Ast0.OptExp(_) -> true | _ -> false) | |
298 | then fail expr "opt only allowed in the last disjunct" | |
299 | | _ -> ()); | |
300 | Ast0.rewrap expr (Ast0.DisjExpr(starter,exps,mids,ender)) | |
301 | | Ast0.NestExpr(starter,exp_dots,ender,whencode,multi) -> | |
302 | let res = | |
303 | Ast0.NestExpr(starter, | |
304 | dots (top_expression true Ast0.NONE) exp_dots, | |
305 | ender,whencode,multi) in | |
306 | Ast0.rewrap expr res | |
307 | | Ast0.Edots(dots,whencode) -> | |
308 | let arity = exp_same (mcode2line dots) [mcode2arity dots] in | |
309 | let dots = mcode dots in | |
310 | let whencode = get_option (expression Ast0.NONE) whencode in | |
311 | make_exp expr tgt arity (Ast0.Edots(dots,whencode)) | |
312 | | Ast0.Ecircles(dots,whencode) -> | |
313 | let arity = exp_same (mcode2line dots) [mcode2arity dots] in | |
314 | let dots = mcode dots in | |
315 | let whencode = get_option (expression Ast0.NONE) whencode in | |
316 | make_exp expr tgt arity (Ast0.Ecircles(dots,whencode)) | |
317 | | Ast0.Estars(dots,whencode) -> | |
318 | let arity = exp_same (mcode2line dots) [mcode2arity dots] in | |
319 | let dots = mcode dots in | |
320 | let whencode = get_option (expression Ast0.NONE) whencode in | |
321 | make_exp expr tgt arity (Ast0.Estars(dots,whencode)) | |
fc1ad971 | 322 | (* why does optexp exist???? *) |
34e49164 C |
323 | | Ast0.OptExp(_) | Ast0.UniqueExp(_) -> |
324 | failwith "unexpected code" | |
325 | ||
326 | and expression tgt exp = top_expression false tgt exp | |
327 | ||
328 | (* --------------------------------------------------------------------- *) | |
329 | (* Types *) | |
330 | ||
331 | and make_typeC = | |
332 | make_opt_unique | |
333 | (function x -> Ast0.OptType x) | |
334 | (function x -> Ast0.UniqueType x) | |
335 | ||
336 | and top_typeC tgt opt_allowed typ = | |
337 | match Ast0.unwrap typ with | |
338 | Ast0.ConstVol(cv,ty) -> | |
339 | let arity = all_same opt_allowed tgt (mcode2line cv) | |
340 | [mcode2arity cv] in | |
341 | let cv = mcode cv in | |
342 | let ty = typeC arity ty in | |
343 | make_typeC typ tgt arity (Ast0.ConstVol(cv,ty)) | |
faf9a90c | 344 | | Ast0.BaseType(ty,strings) -> |
34e49164 | 345 | let arity = |
faf9a90c C |
346 | all_same opt_allowed tgt (mcode2line (List.hd strings)) |
347 | (List.map mcode2arity strings) in | |
348 | let strings = List.map mcode strings in | |
349 | make_typeC typ tgt arity (Ast0.BaseType(ty,strings)) | |
350 | | Ast0.Signed(sign,ty) -> | |
34e49164 C |
351 | let arity = |
352 | all_same opt_allowed tgt (mcode2line sign) [mcode2arity sign] in | |
353 | let sign = mcode sign in | |
faf9a90c C |
354 | let ty = get_option (typeC arity) ty in |
355 | make_typeC typ tgt arity (Ast0.Signed(sign,ty)) | |
34e49164 C |
356 | | Ast0.Pointer(ty,star) -> |
357 | let arity = | |
358 | all_same opt_allowed tgt (mcode2line star) [mcode2arity star] in | |
359 | let ty = typeC arity ty in | |
360 | let star = mcode star in | |
361 | make_typeC typ tgt arity (Ast0.Pointer(ty,star)) | |
362 | | Ast0.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2) -> | |
363 | let arity = | |
364 | all_same opt_allowed tgt (mcode2line lp1) | |
365 | (List.map mcode2arity [lp1;star;rp1;lp2;rp2]) in | |
366 | let ty = typeC arity ty in | |
367 | let params = parameter_list tgt params in | |
368 | make_typeC typ tgt arity | |
369 | (Ast0.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2)) | |
370 | | Ast0.FunctionType(ty,lp1,params,rp1) -> | |
371 | let arity = | |
372 | all_same opt_allowed tgt (mcode2line lp1) | |
373 | (List.map mcode2arity [lp1;rp1]) in | |
374 | let ty = get_option (typeC arity) ty in | |
375 | let params = parameter_list tgt params in | |
376 | make_typeC typ tgt arity (Ast0.FunctionType(ty,lp1,params,rp1)) | |
377 | | Ast0.Array(ty,lb,size,rb) -> | |
378 | let arity = | |
379 | all_same opt_allowed tgt (mcode2line lb) | |
380 | [mcode2arity lb;mcode2arity rb] in | |
381 | let ty = typeC arity ty in | |
382 | let lb = mcode lb in | |
383 | let size = get_option (expression arity) size in | |
384 | let rb = mcode rb in | |
385 | make_typeC typ tgt arity (Ast0.Array(ty,lb,size,rb)) | |
faf9a90c C |
386 | | Ast0.EnumName(kind,name) -> |
387 | let arity = | |
388 | all_same opt_allowed tgt (mcode2line kind) [mcode2arity kind] in | |
389 | let kind = mcode kind in | |
390 | let name = ident false arity name in | |
391 | make_typeC typ tgt arity (Ast0.EnumName(kind,name)) | |
34e49164 C |
392 | | Ast0.StructUnionName(kind,name) -> |
393 | let arity = | |
394 | all_same opt_allowed tgt (mcode2line kind) | |
395 | [mcode2arity kind] in | |
396 | let kind = mcode kind in | |
397 | let name = get_option (ident false arity) name in | |
398 | make_typeC typ tgt arity (Ast0.StructUnionName(kind,name)) | |
399 | | Ast0.StructUnionDef(ty,lb,decls,rb) -> | |
400 | let arity = | |
401 | all_same opt_allowed tgt (mcode2line lb) | |
402 | (List.map mcode2arity [lb;rb]) in | |
403 | let ty = typeC arity ty in | |
404 | let lb = mcode lb in | |
405 | let decls = dots (declaration tgt) decls in | |
406 | let rb = mcode rb in | |
407 | make_typeC typ tgt arity (Ast0.StructUnionDef(ty,lb,decls,rb)) | |
408 | | Ast0.TypeName(name) -> | |
409 | let arity = | |
410 | all_same opt_allowed tgt (mcode2line name) [mcode2arity name] in | |
411 | let name = mcode name in | |
412 | make_typeC typ tgt arity (Ast0.TypeName(name)) | |
413 | | Ast0.MetaType(name,pure) -> | |
414 | let arity = | |
415 | all_same opt_allowed tgt (mcode2line name) [mcode2arity name] in | |
416 | let name = mcode name in | |
417 | make_typeC typ tgt arity (Ast0.MetaType(name,pure)) | |
418 | | Ast0.DisjType(starter,types,mids,ender) -> | |
419 | let types = List.map (typeC tgt) types in | |
420 | (match List.rev types with | |
421 | _::xs -> | |
422 | if anyopt xs (function Ast0.OptType(_) -> true | _ -> false) | |
423 | then fail typ "opt only allowed in the last disjunct" | |
424 | | _ -> ()); | |
425 | let res = Ast0.DisjType(starter,types,mids,ender) in | |
426 | Ast0.rewrap typ res | |
427 | | Ast0.OptType(_) | Ast0.UniqueType(_) -> | |
428 | failwith "unexpected code" | |
429 | ||
430 | and typeC tgt ty = top_typeC tgt false ty | |
431 | ||
432 | (* --------------------------------------------------------------------- *) | |
433 | (* Variable declaration *) | |
434 | (* Even if the Cocci program specifies a list of declarations, they are | |
435 | split out into multiple declarations of a single variable each. *) | |
436 | ||
437 | and make_decl = | |
438 | make_opt_unique | |
439 | (function x -> Ast0.OptDecl x) | |
440 | (function x -> Ast0.UniqueDecl x) | |
441 | ||
442 | and declaration tgt decl = | |
443 | match Ast0.unwrap decl with | |
444 | Ast0.Init(stg,ty,id,eq,exp,sem) -> | |
445 | let arity = | |
446 | all_same true tgt (mcode2line eq) | |
447 | ((match stg with None -> [] | Some x -> [mcode2arity x]) @ | |
448 | (List.map mcode2arity [eq;sem])) in | |
449 | let stg = get_option mcode stg in | |
450 | let ty = typeC arity ty in | |
451 | let id = ident false arity id in | |
452 | let eq = mcode eq in | |
453 | let exp = initialiser arity exp in | |
454 | let sem = mcode sem in | |
455 | make_decl decl tgt arity (Ast0.Init(stg,ty,id,eq,exp,sem)) | |
456 | | Ast0.UnInit(stg,ty,id,sem) -> | |
457 | let arity = | |
458 | all_same true tgt (mcode2line sem) | |
459 | ((match stg with None -> [] | Some x -> [mcode2arity x]) @ | |
460 | [mcode2arity sem]) in | |
461 | let stg = get_option mcode stg in | |
462 | let ty = typeC arity ty in | |
463 | let id = ident false arity id in | |
464 | let sem = mcode sem in | |
465 | make_decl decl tgt arity (Ast0.UnInit(stg,ty,id,sem)) | |
466 | | Ast0.MacroDecl(name,lp,args,rp,sem) -> | |
467 | let arity = | |
468 | all_same true tgt (mcode2line lp) (List.map mcode2arity [lp;rp;sem]) in | |
469 | let name = ident false arity name in | |
470 | let lp = mcode lp in | |
471 | let args = dots (expression arity) args in | |
472 | let rp = mcode rp in | |
473 | let sem = mcode sem in | |
474 | make_decl decl tgt arity (Ast0.MacroDecl(name,lp,args,rp,sem)) | |
475 | | Ast0.TyDecl(ty,sem) -> | |
476 | let arity = | |
477 | all_same true tgt (mcode2line sem) [mcode2arity sem] in | |
478 | let ty = typeC arity ty in | |
479 | let sem = mcode sem in | |
480 | make_decl decl tgt arity (Ast0.TyDecl(ty,sem)) | |
481 | | Ast0.Typedef(stg,ty,id,sem) -> | |
482 | let arity = | |
483 | all_same true tgt (mcode2line sem) | |
484 | [mcode2arity stg;mcode2arity sem] in | |
485 | let stg = mcode stg in | |
486 | let ty = typeC arity ty in | |
487 | let id = typeC arity id in | |
488 | let sem = mcode sem in | |
489 | make_decl decl tgt arity (Ast0.Typedef(stg,ty,id,sem)) | |
490 | | Ast0.DisjDecl(starter,decls,mids,ender) -> | |
491 | let decls = List.map (declaration tgt) decls in | |
492 | (match List.rev decls with | |
493 | _::xs -> | |
494 | if anyopt xs (function Ast0.OptDecl(_) -> true | _ -> false) | |
495 | then fail decl "opt only allowed in the last disjunct" | |
496 | | _ -> ()); | |
497 | let res = Ast0.DisjDecl(starter,decls,mids,ender) in | |
498 | Ast0.rewrap decl res | |
499 | | Ast0.Ddots(dots,whencode) -> | |
500 | let arity = all_same true tgt (mcode2line dots) [mcode2arity dots] in | |
501 | let dots = mcode dots in | |
502 | let whencode = get_option (declaration Ast0.NONE) whencode in | |
503 | make_decl decl tgt arity (Ast0.Ddots(dots,whencode)) | |
504 | | Ast0.OptDecl(_) | Ast0.UniqueDecl(_) -> | |
505 | failwith "unexpected code" | |
506 | ||
507 | (* --------------------------------------------------------------------- *) | |
508 | (* Initializer *) | |
509 | ||
510 | and make_init = | |
511 | make_opt_unique | |
512 | (function x -> Ast0.OptIni x) | |
513 | (function x -> Ast0.UniqueIni x) | |
514 | ||
515 | and initialiser tgt i = | |
516 | let init_same = all_same true tgt in | |
517 | match Ast0.unwrap i with | |
113803cf C |
518 | Ast0.MetaInit(name,pure) -> |
519 | let arity = init_same (mcode2line name) [mcode2arity name] in | |
520 | let name = mcode name in | |
521 | make_init i tgt arity (Ast0.MetaInit(name,pure)) | |
522 | | Ast0.InitExpr(exp) -> | |
34e49164 C |
523 | Ast0.rewrap i (Ast0.InitExpr(expression tgt exp)) |
524 | | Ast0.InitList(lb,initlist,rb) -> | |
525 | let arity = init_same (mcode2line lb) [mcode2arity lb; mcode2arity rb] in | |
526 | let lb = mcode lb in | |
527 | let initlist = dots (initialiser arity) initlist in | |
528 | let rb = mcode rb in | |
529 | make_init i tgt arity (Ast0.InitList(lb,initlist,rb)) | |
113803cf C |
530 | | Ast0.InitGccExt(designators,eq,ini) -> |
531 | let arity = init_same (mcode2line eq) [mcode2arity eq] in | |
532 | let designators = List.map (designator arity) designators in | |
34e49164 C |
533 | let eq = mcode eq in |
534 | let ini = initialiser arity ini in | |
113803cf | 535 | make_init i tgt arity (Ast0.InitGccExt(designators,eq,ini)) |
34e49164 C |
536 | | Ast0.InitGccName(name,eq,ini) -> |
537 | let arity = init_same (mcode2line eq) [mcode2arity eq] in | |
538 | let name = ident true arity name in | |
539 | let eq = mcode eq in | |
540 | let ini = initialiser arity ini in | |
541 | make_init i tgt arity (Ast0.InitGccName(name,eq,ini)) | |
34e49164 C |
542 | | Ast0.IComma(cm) -> |
543 | let arity = init_same (mcode2line cm) [mcode2arity cm] in | |
544 | let cm = mcode cm in | |
545 | make_init i tgt arity (Ast0.IComma(cm)) | |
546 | | Ast0.Idots(dots,whencode) -> | |
547 | let arity = init_same (mcode2line dots) [mcode2arity dots] in | |
548 | let dots = mcode dots in | |
549 | let whencode = get_option (initialiser Ast0.NONE) whencode in | |
550 | make_init i tgt arity (Ast0.Idots(dots,whencode)) | |
551 | | Ast0.OptIni(_) | Ast0.UniqueIni(_) -> | |
552 | failwith "unexpected code" | |
553 | ||
113803cf C |
554 | and designator tgt d = |
555 | let dsame = all_same false tgt in | |
556 | match d with | |
557 | Ast0.DesignatorField(dot,id) -> | |
558 | let arity = dsame (mcode2line dot) [mcode2arity dot] in | |
559 | let dot = mcode dot in | |
560 | let id = ident false arity id in | |
561 | Ast0.DesignatorField(dot,id) | |
562 | | Ast0.DesignatorIndex(lb,exp,rb) -> | |
563 | let arity = dsame (mcode2line lb) [mcode2arity lb;mcode2arity rb] in | |
564 | let lb = mcode lb in | |
565 | let exp = top_expression false arity exp in | |
566 | let rb = mcode rb in | |
567 | Ast0.DesignatorIndex(lb,exp,rb) | |
568 | | Ast0.DesignatorRange(lb,min,dots,max,rb) -> | |
569 | let arity = | |
570 | dsame (mcode2line lb) | |
571 | [mcode2arity lb;mcode2arity dots;mcode2arity rb] in | |
572 | let lb = mcode lb in | |
573 | let min = top_expression false arity min in | |
574 | let dots = mcode dots in | |
575 | let max = top_expression false arity max in | |
576 | let rb = mcode rb in | |
577 | Ast0.DesignatorRange(lb,min,dots,max,rb) | |
578 | ||
34e49164 C |
579 | (* --------------------------------------------------------------------- *) |
580 | (* Parameter *) | |
581 | ||
582 | and make_param = | |
583 | make_opt_unique | |
584 | (function x -> Ast0.OptParam x) | |
585 | (function x -> Ast0.UniqueParam x) | |
586 | ||
587 | and parameterTypeDef tgt param = | |
588 | let param_same = all_same true tgt in | |
589 | match Ast0.unwrap param with | |
590 | Ast0.VoidParam(ty) -> Ast0.rewrap param (Ast0.VoidParam(typeC tgt ty)) | |
591 | | Ast0.Param(ty,Some id) -> | |
592 | let ty = top_typeC tgt true ty in | |
593 | let id = ident true tgt id in | |
faf9a90c | 594 | Ast0.rewrap param |
34e49164 C |
595 | (match (Ast0.unwrap ty,Ast0.unwrap id) with |
596 | (Ast0.OptType(ty),Ast0.OptIdent(id)) -> | |
597 | Ast0.OptParam(Ast0.rewrap param (Ast0.Param(ty,Some id))) | |
598 | | (Ast0.UniqueType(ty),Ast0.UniqueIdent(id)) -> | |
599 | Ast0.UniqueParam(Ast0.rewrap param (Ast0.Param(ty,Some id))) | |
600 | | (Ast0.OptType(ty),_) -> | |
601 | fail param "arity mismatch in param declaration" | |
602 | | (_,Ast0.OptIdent(id)) -> | |
603 | fail param "arity mismatch in param declaration" | |
604 | | _ -> Ast0.Param(ty,Some id)) | |
605 | | Ast0.Param(ty,None) -> | |
606 | let ty = top_typeC tgt true ty in | |
faf9a90c | 607 | Ast0.rewrap param |
34e49164 C |
608 | (match Ast0.unwrap ty with |
609 | Ast0.OptType(ty) -> | |
610 | Ast0.OptParam(Ast0.rewrap param (Ast0.Param(ty,None))) | |
611 | | Ast0.UniqueType(ty) -> | |
612 | Ast0.UniqueParam(Ast0.rewrap param (Ast0.Param(ty,None))) | |
613 | | _ -> Ast0.Param(ty,None)) | |
614 | | Ast0.MetaParam(name,pure) -> | |
615 | let arity = param_same (mcode2line name) [mcode2arity name] in | |
616 | let name = mcode name in | |
617 | make_param param tgt arity (Ast0.MetaParam(name,pure)) | |
618 | | Ast0.MetaParamList(name,lenname,pure) -> | |
619 | let arity = param_same (mcode2line name) [mcode2arity name] in | |
620 | let name = mcode name in | |
621 | make_param param tgt arity (Ast0.MetaParamList(name,lenname,pure)) | |
622 | | Ast0.PComma(cm) -> | |
623 | let arity = param_same (mcode2line cm) [mcode2arity cm] in | |
624 | let cm = mcode cm in | |
625 | make_param param tgt arity (Ast0.PComma(cm)) | |
626 | | Ast0.Pdots(dots) -> | |
627 | let arity = param_same (mcode2line dots) [mcode2arity dots] in | |
628 | let dots = mcode dots in | |
629 | make_param param tgt arity (Ast0.Pdots(dots)) | |
630 | | Ast0.Pcircles(dots) -> | |
631 | let arity = param_same (mcode2line dots) [mcode2arity dots] in | |
632 | let dots = mcode dots in | |
633 | make_param param tgt arity (Ast0.Pcircles(dots)) | |
634 | | Ast0.OptParam(_) | Ast0.UniqueParam(_) -> | |
635 | failwith "unexpected code" | |
636 | ||
637 | and parameter_list tgt = dots (parameterTypeDef tgt) | |
638 | ||
639 | (* --------------------------------------------------------------------- *) | |
640 | (* Top-level code *) | |
641 | ||
642 | and make_rule_elem x = | |
643 | make_opt_unique | |
644 | (function x -> Ast0.OptStm x) | |
645 | (function x -> Ast0.UniqueStm x) | |
646 | x | |
647 | ||
648 | and statement tgt stm = | |
649 | let stm_same = all_same true tgt in | |
650 | match Ast0.unwrap stm with | |
651 | Ast0.Decl(bef,decl) -> | |
652 | let new_decl = declaration tgt decl in | |
faf9a90c | 653 | Ast0.rewrap stm |
34e49164 C |
654 | (match Ast0.unwrap new_decl with |
655 | Ast0.OptDecl(decl) -> | |
656 | Ast0.OptStm(Ast0.rewrap stm (Ast0.Decl(bef,decl))) | |
657 | | Ast0.UniqueDecl(decl) -> | |
658 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.Decl(bef,decl))) | |
659 | | _ -> Ast0.Decl(bef,new_decl)) | |
faf9a90c | 660 | | Ast0.Seq(lbrace,body,rbrace) -> |
34e49164 C |
661 | let arity = |
662 | stm_same (mcode2line lbrace) | |
663 | [mcode2arity lbrace; mcode2arity rbrace] in | |
664 | let lbrace = mcode lbrace in | |
665 | let body = dots (statement arity) body in | |
666 | let rbrace = mcode rbrace in | |
667 | make_rule_elem stm tgt arity (Ast0.Seq(lbrace,body,rbrace)) | |
668 | | Ast0.ExprStatement(exp,sem) -> | |
669 | let arity = stm_same (mcode2line sem) [mcode2arity sem] in | |
670 | let exp = expression arity exp in | |
671 | let sem = mcode sem in | |
672 | make_rule_elem stm tgt arity (Ast0.ExprStatement(exp,sem)) | |
673 | | Ast0.IfThen(iff,lp,exp,rp,branch,aft) -> | |
674 | let arity = | |
675 | stm_same (mcode2line iff) (List.map mcode2arity [iff;lp;rp]) in | |
676 | let iff = mcode iff in | |
677 | let lp = mcode lp in | |
678 | let exp = expression arity exp in | |
679 | let rp = mcode rp in | |
680 | let branch = statement arity branch in | |
681 | make_rule_elem stm tgt arity (Ast0.IfThen(iff,lp,exp,rp,branch,aft)) | |
682 | | Ast0.IfThenElse(iff,lp,exp,rp,branch1,els,branch2,aft) -> | |
683 | let arity = | |
684 | stm_same (mcode2line iff) (List.map mcode2arity [iff;lp;rp;els]) in | |
685 | let iff = mcode iff in | |
686 | let lp = mcode lp in | |
687 | let exp = expression arity exp in | |
688 | let rp = mcode rp in | |
689 | let branch1 = statement arity branch1 in | |
690 | let els = mcode els in | |
691 | let branch2 = statement arity branch2 in | |
692 | make_rule_elem stm tgt arity | |
693 | (Ast0.IfThenElse(iff,lp,exp,rp,branch1,els,branch2,aft)) | |
694 | | Ast0.While(wh,lp,exp,rp,body,aft) -> | |
695 | let arity = | |
696 | stm_same (mcode2line wh) | |
697 | (List.map mcode2arity [wh;lp;rp]) in | |
698 | let wh = mcode wh in | |
699 | let lp = mcode lp in | |
700 | let exp = expression arity exp in | |
701 | let rp = mcode rp in | |
702 | let body = statement arity body in | |
703 | make_rule_elem stm tgt arity (Ast0.While(wh,lp,exp,rp,body,aft)) | |
704 | | Ast0.Do(d,body,wh,lp,exp,rp,sem) -> | |
705 | let arity = | |
706 | stm_same (mcode2line wh) (List.map mcode2arity [d;wh;lp;rp;sem]) in | |
707 | let d = mcode d in | |
708 | let body = statement arity body in | |
709 | let wh = mcode wh in | |
710 | let lp = mcode lp in | |
711 | let exp = expression arity exp in | |
712 | let rp = mcode rp in | |
713 | let sem = mcode sem in | |
714 | make_rule_elem stm tgt arity (Ast0.Do(d,body,wh,lp,exp,rp,sem)) | |
715 | | Ast0.For(fr,lp,exp1,sem1,exp2,sem2,exp3,rp,body,aft) -> | |
716 | let arity = | |
717 | stm_same (mcode2line fr) (List.map mcode2arity [fr;lp;sem1;sem2;rp]) in | |
718 | let fr = mcode fr in | |
719 | let lp = mcode lp in | |
720 | let exp1 = get_option (expression arity) exp1 in | |
721 | let sem1 = mcode sem1 in | |
722 | let exp2 = get_option (expression arity) exp2 in | |
723 | let sem2= mcode sem2 in | |
724 | let exp3 = get_option (expression arity) exp3 in | |
725 | let rp = mcode rp in | |
726 | let body = statement arity body in | |
727 | make_rule_elem stm tgt arity | |
728 | (Ast0.For(fr,lp,exp1,sem1,exp2,sem2,exp3,rp,body,aft)) | |
729 | | Ast0.Iterator(nm,lp,args,rp,body,aft) -> | |
730 | let arity = stm_same (mcode2line lp) (List.map mcode2arity [lp;rp]) in | |
731 | let nm = ident false arity nm in | |
732 | let lp = mcode lp in | |
733 | let args = dots (expression arity) args in | |
734 | let rp = mcode rp in | |
735 | let body = statement arity body in | |
736 | make_rule_elem stm tgt arity (Ast0.Iterator(nm,lp,args,rp,body,aft)) | |
fc1ad971 | 737 | | Ast0.Switch(switch,lp,exp,rp,lb,decls,cases,rb) -> |
34e49164 C |
738 | let arity = |
739 | stm_same (mcode2line switch) | |
740 | (List.map mcode2arity [switch;lp;rp;lb;rb]) in | |
741 | let switch = mcode switch in | |
742 | let lp = mcode lp in | |
743 | let exp = expression arity exp in | |
744 | let rp = mcode rp in | |
745 | let lb = mcode lb in | |
fc1ad971 | 746 | let decls = dots (statement arity) decls in |
34e49164 C |
747 | let cases = dots (case_line arity) cases in |
748 | let rb = mcode rb in | |
749 | make_rule_elem stm tgt arity | |
fc1ad971 | 750 | (Ast0.Switch(switch,lp,exp,rp,lb,decls,cases,rb)) |
34e49164 C |
751 | | Ast0.Break(br,sem) -> |
752 | let arity = stm_same (mcode2line br) (List.map mcode2arity [br;sem]) in | |
753 | let br = mcode br in | |
754 | let sem = mcode sem in | |
755 | make_rule_elem stm tgt arity (Ast0.Break(br,sem)) | |
756 | | Ast0.Continue(cont,sem) -> | |
757 | let arity = | |
758 | stm_same (mcode2line cont) (List.map mcode2arity [cont;sem]) in | |
759 | let cont = mcode cont in | |
760 | let sem = mcode sem in | |
761 | make_rule_elem stm tgt arity (Ast0.Continue(cont,sem)) | |
762 | | Ast0.Label(l,dd) -> | |
763 | let arity = mcode2arity dd in | |
764 | let l = ident false tgt l in | |
765 | let dd = mcode dd in | |
766 | make_rule_elem stm tgt arity (Ast0.Label(l,dd)) | |
767 | | Ast0.Goto(goto,l,sem) -> | |
768 | let arity = | |
769 | stm_same (mcode2line goto) (List.map mcode2arity [goto;sem]) in | |
770 | let goto = mcode goto in | |
771 | let l = ident false tgt l in | |
772 | let sem = mcode sem in | |
773 | make_rule_elem stm tgt arity (Ast0.Goto(goto,l,sem)) | |
774 | | Ast0.Return(ret,sem) -> | |
775 | let arity = stm_same (mcode2line ret) (List.map mcode2arity [ret;sem]) in | |
776 | let ret = mcode ret in | |
777 | let sem = mcode sem in | |
778 | make_rule_elem stm tgt arity (Ast0.Return(ret,sem)) | |
779 | | Ast0.ReturnExpr(ret,exp,sem) -> | |
780 | let arity = stm_same (mcode2line ret) (List.map mcode2arity [ret;sem]) in | |
781 | let ret = mcode ret in | |
782 | let exp = expression arity exp in | |
783 | let sem = mcode sem in | |
784 | make_rule_elem stm tgt arity (Ast0.ReturnExpr(ret,exp,sem)) | |
785 | | Ast0.MetaStmt(name,pure) -> | |
786 | let arity = stm_same (mcode2line name) [mcode2arity name] in | |
787 | let name = mcode name in | |
788 | make_rule_elem stm tgt arity (Ast0.MetaStmt(name,pure)) | |
789 | | Ast0.MetaStmtList(name,pure) -> | |
790 | let arity = stm_same (mcode2line name) [mcode2arity name] in | |
791 | let name = mcode name in | |
792 | make_rule_elem stm tgt arity (Ast0.MetaStmtList(name,pure)) | |
793 | | Ast0.Exp(exp) -> | |
794 | let new_exp = top_expression true tgt exp in | |
faf9a90c | 795 | Ast0.rewrap stm |
34e49164 C |
796 | (match Ast0.unwrap new_exp with |
797 | Ast0.OptExp(exp) -> | |
798 | Ast0.OptStm(Ast0.rewrap stm (Ast0.Exp(exp))) | |
799 | | Ast0.UniqueExp(exp) -> | |
800 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.Exp(exp))) | |
801 | | _ -> Ast0.Exp(new_exp)) | |
802 | | Ast0.TopExp(exp) -> | |
803 | let new_exp = top_expression true tgt exp in | |
faf9a90c | 804 | Ast0.rewrap stm |
34e49164 C |
805 | (match Ast0.unwrap new_exp with |
806 | Ast0.OptExp(exp) -> | |
807 | Ast0.OptStm(Ast0.rewrap stm (Ast0.TopExp(exp))) | |
808 | | Ast0.UniqueExp(exp) -> | |
809 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.TopExp(exp))) | |
810 | | _ -> Ast0.TopExp(new_exp)) | |
811 | | Ast0.Ty(ty) -> | |
812 | let new_ty = typeC tgt ty in (* opt makes no sense alone at top level *) | |
faf9a90c | 813 | Ast0.rewrap stm |
34e49164 C |
814 | (match Ast0.unwrap new_ty with |
815 | Ast0.OptType(ty) -> | |
816 | Ast0.OptStm(Ast0.rewrap stm (Ast0.Ty(ty))) | |
817 | | Ast0.UniqueType(ty) -> | |
818 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.Ty(ty))) | |
819 | | _ -> Ast0.Ty(new_ty)) | |
1be43e12 C |
820 | | Ast0.TopInit(init) -> |
821 | let new_init = initialiser tgt init in | |
822 | Ast0.rewrap stm | |
823 | (match Ast0.unwrap new_init with | |
824 | Ast0.OptIni(init) -> | |
825 | Ast0.OptStm(Ast0.rewrap stm (Ast0.TopInit(init))) | |
826 | | Ast0.UniqueIni(init) -> | |
827 | Ast0.UniqueStm(Ast0.rewrap stm (Ast0.TopInit(init))) | |
828 | | _ -> Ast0.TopInit(new_init)) | |
34e49164 C |
829 | | Ast0.Disj(starter,rule_elem_dots_list,mids,ender) -> |
830 | let stms = | |
831 | List.map (function x -> concat_dots (statement tgt) x) | |
832 | rule_elem_dots_list in | |
833 | let (found_opt,unopt) = | |
834 | List.fold_left | |
835 | (function (found_opt,lines) -> | |
836 | function x -> | |
837 | let rebuild l = | |
838 | (* previously just checked the last thing in the list, | |
839 | but everything should be optional for the whole thing to | |
840 | be optional *) | |
841 | let is_opt x = | |
842 | match Ast0.unwrap x with | |
843 | Ast0.OptStm(x) -> true | |
844 | | _ -> false in | |
845 | let unopt x = | |
846 | match Ast0.unwrap x with | |
847 | Ast0.OptStm(x) -> x | |
848 | | _ -> x in | |
849 | if List.for_all is_opt l | |
850 | then (true,List.map unopt l) | |
851 | else (false, l) in | |
852 | let (l,k) = | |
853 | match Ast0.unwrap x with | |
854 | Ast0.DOTS(l) -> | |
855 | (l,function l -> Ast0.rewrap x (Ast0.DOTS l)) | |
856 | | Ast0.CIRCLES(l) -> | |
857 | (l,function l -> Ast0.rewrap x (Ast0.CIRCLES l)) | |
858 | | Ast0.STARS(l) -> | |
859 | (l,function l -> Ast0.rewrap x (Ast0.STARS l)) in | |
860 | let (found_opt,l) = rebuild l in | |
861 | (found_opt,(k l)::lines)) | |
862 | (false,[]) stms in | |
863 | let unopt = List.rev unopt in | |
864 | if found_opt | |
865 | then | |
866 | make_rule_elem stm tgt Ast0.OPT (Ast0.Disj(starter,unopt,mids,ender)) | |
867 | else Ast0.rewrap stm (Ast0.Disj(starter,stms,mids,ender)) | |
868 | | Ast0.Nest(starter,rule_elem_dots,ender,whn,multi) -> | |
869 | let new_rule_elem_dots = | |
870 | concat_dots (statement Ast0.NONE) rule_elem_dots in | |
871 | let whn = | |
872 | List.map | |
1be43e12 C |
873 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) |
874 | (expression Ast0.NONE)) | |
34e49164 C |
875 | whn in |
876 | Ast0.rewrap stm | |
877 | (Ast0.Nest(starter,new_rule_elem_dots,ender,whn,multi)) | |
878 | | Ast0.Dots(dots,whn) -> | |
879 | let arity = stm_same (mcode2line dots) [mcode2arity dots] in | |
880 | let dots = mcode dots in | |
881 | let whn = | |
882 | List.map | |
1be43e12 C |
883 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) |
884 | (expression Ast0.NONE)) | |
34e49164 C |
885 | whn in |
886 | make_rule_elem stm tgt arity (Ast0.Dots(dots,whn)) | |
887 | | Ast0.Circles(dots,whn) -> | |
888 | let arity = stm_same (mcode2line dots) [mcode2arity dots] in | |
889 | let dots = mcode dots in | |
890 | let whn = | |
891 | List.map | |
1be43e12 C |
892 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) |
893 | (expression Ast0.NONE)) | |
34e49164 C |
894 | whn in |
895 | make_rule_elem stm tgt arity (Ast0.Circles(dots,whn)) | |
896 | | Ast0.Stars(dots,whn) -> | |
897 | let arity = stm_same (mcode2line dots) [mcode2arity dots] in | |
898 | let dots = mcode dots in | |
899 | let whn = | |
900 | List.map | |
1be43e12 C |
901 | (whencode (concat_dots (statement Ast0.NONE)) (statement Ast0.NONE) |
902 | (expression Ast0.NONE)) | |
34e49164 C |
903 | whn in |
904 | make_rule_elem stm tgt arity (Ast0.Stars(dots,whn)) | |
905 | | Ast0.FunDecl(bef,fi,name,lp,params,rp,lbrace,body,rbrace) -> | |
906 | let arity = | |
907 | all_same true tgt (mcode2line lp) | |
908 | ((List.map mcode2arity [lp;rp;lbrace;rbrace]) @ (fninfo2arity fi)) in | |
909 | let fi = List.map (fninfo arity) fi in | |
910 | let name = ident false arity name in | |
911 | let lp = mcode lp in | |
912 | let params = parameter_list arity params in | |
913 | let rp = mcode rp in | |
914 | let lbrace = mcode lbrace in | |
915 | let body = dots (statement arity) body in | |
916 | let rbrace = mcode rbrace in | |
917 | make_rule_elem stm tgt arity | |
918 | (Ast0.FunDecl(bef,fi,name,lp,params,rp,lbrace,body,rbrace)) | |
faf9a90c | 919 | | Ast0.Include(inc,s) -> |
34e49164 C |
920 | let arity = |
921 | all_same true tgt (mcode2line inc) [mcode2arity inc; mcode2arity s] in | |
922 | let inc = mcode inc in | |
923 | let s = mcode s in | |
924 | make_rule_elem stm tgt arity (Ast0.Include(inc,s)) | |
925 | | Ast0.Define(def,id,params,body) -> | |
926 | let arity = all_same true tgt (mcode2line def) [mcode2arity def] in | |
927 | let def = mcode def in | |
928 | let id = ident false arity id in | |
929 | let params = define_parameters arity params in | |
930 | let body = dots (statement arity) body in | |
931 | make_rule_elem stm tgt arity (Ast0.Define(def,id,params,body)) | |
932 | | Ast0.OptStm(_) | Ast0.UniqueStm(_) -> | |
933 | failwith "unexpected code" | |
934 | ||
935 | and define_parameters tgt params = | |
936 | match Ast0.unwrap params with | |
937 | Ast0.NoParams -> params | |
938 | | Ast0.DParams(lp,params,rp) -> | |
939 | let arity = | |
940 | all_same true tgt (mcode2line lp) [mcode2arity lp;mcode2arity rp] in | |
941 | let lp = mcode lp in | |
942 | let params = dots (define_param arity) params in | |
943 | let rp = mcode rp in | |
944 | Ast0.rewrap params (Ast0.DParams(lp,params,rp)) | |
945 | ||
946 | and make_define_param x = | |
947 | make_opt_unique | |
948 | (function x -> Ast0.OptDParam x) | |
949 | (function x -> Ast0.UniqueDParam x) | |
950 | x | |
951 | ||
952 | and define_param tgt param = | |
953 | match Ast0.unwrap param with | |
954 | Ast0.DParam(id) -> | |
955 | let new_id = ident true tgt id in | |
956 | Ast0.rewrap param | |
957 | (match Ast0.unwrap new_id with | |
958 | Ast0.OptIdent(id) -> | |
959 | Ast0.OptDParam(Ast0.rewrap param (Ast0.DParam(id))) | |
960 | | Ast0.UniqueIdent(decl) -> | |
961 | Ast0.UniqueDParam(Ast0.rewrap param (Ast0.DParam(id))) | |
962 | | _ -> Ast0.DParam(new_id)) | |
963 | | Ast0.DPComma(cm) -> | |
964 | let arity = | |
965 | all_same true tgt (mcode2line cm) [mcode2arity cm] in | |
966 | let cm = mcode cm in | |
967 | make_define_param param tgt arity (Ast0.DPComma(cm)) | |
968 | | Ast0.DPdots(dots) -> | |
969 | let arity = | |
970 | all_same true tgt (mcode2line dots) [mcode2arity dots] in | |
971 | let dots = mcode dots in | |
972 | make_define_param param tgt arity (Ast0.DPdots(dots)) | |
973 | | Ast0.DPcircles(circles) -> | |
974 | let arity = | |
975 | all_same true tgt (mcode2line circles) [mcode2arity circles] in | |
976 | let circles = mcode circles in | |
977 | make_define_param param tgt arity (Ast0.DPcircles(circles)) | |
978 | | Ast0.OptDParam(dp) | Ast0.UniqueDParam(dp) -> | |
979 | failwith "unexpected code" | |
980 | ||
981 | and fninfo arity = function | |
982 | Ast0.FStorage(stg) -> Ast0.FStorage(mcode stg) | |
983 | | Ast0.FType(ty) -> Ast0.FType(typeC arity ty) | |
984 | | Ast0.FInline(inline) -> Ast0.FInline(mcode inline) | |
985 | | Ast0.FAttr(attr) -> Ast0.FAttr(mcode attr) | |
986 | ||
987 | and fninfo2arity fninfo = | |
988 | List.concat | |
989 | (List.map | |
990 | (function | |
991 | Ast0.FStorage(stg) -> [mcode2arity stg] | |
992 | | Ast0.FType(ty) -> [] | |
993 | | Ast0.FInline(inline) -> [mcode2arity inline] | |
994 | | Ast0.FAttr(attr) -> [mcode2arity attr]) | |
995 | fninfo) | |
996 | ||
1be43e12 | 997 | and whencode notfn alwaysfn expression = function |
34e49164 C |
998 | Ast0.WhenNot a -> Ast0.WhenNot (notfn a) |
999 | | Ast0.WhenAlways a -> Ast0.WhenAlways (alwaysfn a) | |
1000 | | Ast0.WhenModifier(x) -> Ast0.WhenModifier(x) | |
1be43e12 C |
1001 | | Ast0.WhenNotTrue a -> Ast0.WhenNotTrue (expression a) |
1002 | | Ast0.WhenNotFalse a -> Ast0.WhenNotFalse (expression a) | |
34e49164 C |
1003 | |
1004 | and make_case_line = | |
1005 | make_opt_unique | |
1006 | (function x -> Ast0.OptCase x) | |
1007 | (function x -> failwith "unique not allowed for case_line") | |
1008 | ||
1009 | and case_line tgt c = | |
1010 | match Ast0.unwrap c with | |
1011 | Ast0.Default(def,colon,code) -> | |
1012 | let arity = | |
1013 | all_same true tgt (mcode2line def) | |
1014 | [mcode2arity def; mcode2arity colon] in | |
1015 | let def = mcode def in | |
1016 | let colon = mcode colon in | |
1017 | let code = dots (statement arity) code in | |
1018 | make_case_line c tgt arity (Ast0.Default(def,colon,code)) | |
1019 | | Ast0.Case(case,exp,colon,code) -> | |
1020 | let arity = | |
1021 | all_same true tgt (mcode2line case) | |
1022 | [mcode2arity case; mcode2arity colon] in | |
1023 | let case = mcode case in | |
1024 | let exp = expression arity exp in | |
1025 | let colon = mcode colon in | |
1026 | let code = dots (statement arity) code in | |
1027 | make_case_line c tgt arity (Ast0.Case(case,exp,colon,code)) | |
fc1ad971 C |
1028 | | Ast0.DisjCase(starter,case_lines,mids,ender) -> |
1029 | let case_lines = List.map (case_line tgt) case_lines in | |
1030 | (match List.rev case_lines with | |
1031 | _::xs -> | |
1032 | if anyopt xs (function Ast0.OptCase(_) -> true | _ -> false) | |
1033 | then fail c "opt only allowed in the last disjunct" | |
1034 | | _ -> ()); | |
1035 | Ast0.rewrap c (Ast0.DisjCase(starter,case_lines,mids,ender)) | |
34e49164 C |
1036 | | Ast0.OptCase(_) -> failwith "unexpected OptCase" |
1037 | ||
1038 | (* --------------------------------------------------------------------- *) | |
1039 | (* Function declaration *) | |
1040 | (* Haven't thought much about arity here... *) | |
1041 | ||
1042 | let top_level tgt t = | |
1043 | Ast0.rewrap t | |
1044 | (match Ast0.unwrap t with | |
faf9a90c | 1045 | Ast0.FILEINFO(old_file,new_file) -> |
34e49164 C |
1046 | if mcode2arity old_file = Ast0.NONE && mcode2arity new_file = Ast0.NONE |
1047 | then Ast0.FILEINFO(mcode old_file,mcode new_file) | |
1048 | else fail t "unexpected arity for file info" | |
1049 | | Ast0.DECL(stmt) -> | |
1050 | Ast0.DECL(statement tgt stmt) | |
1051 | | Ast0.CODE(rule_elem_dots) -> | |
1052 | Ast0.CODE(concat_dots (statement tgt) rule_elem_dots) | |
1053 | | Ast0.ERRORWORDS(exps) -> | |
1054 | Ast0.ERRORWORDS(List.map (top_expression false Ast0.NONE) exps) | |
1055 | | Ast0.OTHER(_) -> fail t "eliminated by top_level") | |
1056 | ||
1057 | let rule tgt = List.map (top_level tgt) | |
1058 | ||
1059 | (* --------------------------------------------------------------------- *) | |
1060 | (* Entry points *) | |
1061 | ||
1062 | let minus_arity code = | |
1063 | rule Ast0.NONE code |