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34e49164 C |
1 | (* Detects subtrees that are all minus/plus and nodes that are "binding |
2 | context nodes". The latter is a node whose structure and immediate tokens | |
3 | are the same in the minus and plus trees, and such that for every child, | |
4 | the set of context nodes in the child subtree is the same in the minus and | |
5 | plus subtrees. *) | |
6 | ||
7 | module Ast = Ast_cocci | |
8 | module Ast0 = Ast0_cocci | |
9 | module V0 = Visitor_ast0 | |
b1b2de81 | 10 | module VT0 = Visitor_ast0_types |
34e49164 C |
11 | module U = Unparse_ast0 |
12 | ||
13 | (* --------------------------------------------------------------------- *) | |
14 | (* Generic access to code *) | |
15 | ||
16 | let set_mcodekind x mcodekind = | |
17 | match x with | |
18 | Ast0.DotsExprTag(d) -> Ast0.set_mcodekind d mcodekind | |
19 | | Ast0.DotsInitTag(d) -> Ast0.set_mcodekind d mcodekind | |
20 | | Ast0.DotsParamTag(d) -> Ast0.set_mcodekind d mcodekind | |
21 | | Ast0.DotsStmtTag(d) -> Ast0.set_mcodekind d mcodekind | |
22 | | Ast0.DotsDeclTag(d) -> Ast0.set_mcodekind d mcodekind | |
23 | | Ast0.DotsCaseTag(d) -> Ast0.set_mcodekind d mcodekind | |
24 | | Ast0.IdentTag(d) -> Ast0.set_mcodekind d mcodekind | |
25 | | Ast0.ExprTag(d) -> Ast0.set_mcodekind d mcodekind | |
26 | | Ast0.ArgExprTag(d) | Ast0.TestExprTag(d) -> | |
27 | failwith "not possible - iso only" | |
28 | | Ast0.TypeCTag(d) -> Ast0.set_mcodekind d mcodekind | |
29 | | Ast0.ParamTag(d) -> Ast0.set_mcodekind d mcodekind | |
30 | | Ast0.DeclTag(d) -> Ast0.set_mcodekind d mcodekind | |
31 | | Ast0.InitTag(d) -> Ast0.set_mcodekind d mcodekind | |
32 | | Ast0.StmtTag(d) -> Ast0.set_mcodekind d mcodekind | |
33 | | Ast0.CaseLineTag(d) -> Ast0.set_mcodekind d mcodekind | |
34 | | Ast0.TopTag(d) -> Ast0.set_mcodekind d mcodekind | |
35 | | Ast0.IsoWhenTag(_) -> failwith "only within iso phase" | |
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36 | | Ast0.IsoWhenTTag(_) -> failwith "only within iso phase" |
37 | | Ast0.IsoWhenFTag(_) -> failwith "only within iso phase" | |
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38 | | Ast0.MetaPosTag(p) -> failwith "metapostag only within iso phase" |
39 | ||
40 | let set_index x index = | |
41 | match x with | |
42 | Ast0.DotsExprTag(d) -> Ast0.set_index d index | |
43 | | Ast0.DotsInitTag(d) -> Ast0.set_index d index | |
44 | | Ast0.DotsParamTag(d) -> Ast0.set_index d index | |
45 | | Ast0.DotsStmtTag(d) -> Ast0.set_index d index | |
46 | | Ast0.DotsDeclTag(d) -> Ast0.set_index d index | |
47 | | Ast0.DotsCaseTag(d) -> Ast0.set_index d index | |
48 | | Ast0.IdentTag(d) -> Ast0.set_index d index | |
49 | | Ast0.ExprTag(d) -> Ast0.set_index d index | |
50 | | Ast0.ArgExprTag(d) | Ast0.TestExprTag(d) -> | |
51 | failwith "not possible - iso only" | |
52 | | Ast0.TypeCTag(d) -> Ast0.set_index d index | |
53 | | Ast0.ParamTag(d) -> Ast0.set_index d index | |
54 | | Ast0.InitTag(d) -> Ast0.set_index d index | |
55 | | Ast0.DeclTag(d) -> Ast0.set_index d index | |
56 | | Ast0.StmtTag(d) -> Ast0.set_index d index | |
57 | | Ast0.CaseLineTag(d) -> Ast0.set_index d index | |
58 | | Ast0.TopTag(d) -> Ast0.set_index d index | |
59 | | Ast0.IsoWhenTag(_) -> failwith "only within iso phase" | |
1be43e12 C |
60 | | Ast0.IsoWhenTTag(_) -> failwith "only within iso phase" |
61 | | Ast0.IsoWhenFTag(_) -> failwith "only within iso phase" | |
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62 | | Ast0.MetaPosTag(p) -> failwith "metapostag only within iso phase" |
63 | ||
64 | let get_index = function | |
65 | Ast0.DotsExprTag(d) -> Index.expression_dots d | |
66 | | Ast0.DotsInitTag(d) -> Index.initialiser_dots d | |
67 | | Ast0.DotsParamTag(d) -> Index.parameter_dots d | |
68 | | Ast0.DotsStmtTag(d) -> Index.statement_dots d | |
69 | | Ast0.DotsDeclTag(d) -> Index.declaration_dots d | |
70 | | Ast0.DotsCaseTag(d) -> Index.case_line_dots d | |
71 | | Ast0.IdentTag(d) -> Index.ident d | |
72 | | Ast0.ExprTag(d) -> Index.expression d | |
73 | | Ast0.ArgExprTag(d) | Ast0.TestExprTag(d) -> | |
74 | failwith "not possible - iso only" | |
75 | | Ast0.TypeCTag(d) -> Index.typeC d | |
76 | | Ast0.ParamTag(d) -> Index.parameterTypeDef d | |
77 | | Ast0.InitTag(d) -> Index.initialiser d | |
78 | | Ast0.DeclTag(d) -> Index.declaration d | |
79 | | Ast0.StmtTag(d) -> Index.statement d | |
80 | | Ast0.CaseLineTag(d) -> Index.case_line d | |
81 | | Ast0.TopTag(d) -> Index.top_level d | |
82 | | Ast0.IsoWhenTag(_) -> failwith "only within iso phase" | |
1be43e12 C |
83 | | Ast0.IsoWhenTTag(_) -> failwith "only within iso phase" |
84 | | Ast0.IsoWhenFTag(_) -> failwith "only within iso phase" | |
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85 | | Ast0.MetaPosTag(p) -> failwith "metapostag only within iso phase" |
86 | ||
87 | (* --------------------------------------------------------------------- *) | |
88 | (* Collect the line numbers of the plus code. This is used for disjunctions. | |
89 | It is not completely clear why this is necessary, but it seems like an easy | |
90 | fix for whatever is the problem that is discussed in disj_cases *) | |
91 | ||
92 | let plus_lines = ref ([] : int list) | |
93 | ||
94 | let insert n = | |
95 | let rec loop = function | |
96 | [] -> [n] | |
97 | | x::xs -> | |
98 | match compare n x with | |
99 | 1 -> x::(loop xs) | |
100 | | 0 -> x::xs | |
101 | | -1 -> n::x::xs | |
102 | | _ -> failwith "not possible" in | |
103 | plus_lines := loop !plus_lines | |
104 | ||
105 | let find n min max = | |
106 | let rec loop = function | |
107 | [] -> (min,max) | |
108 | | [x] -> if n < x then (min,x) else (x,max) | |
109 | | x1::x2::rest -> | |
110 | if n < x1 | |
111 | then (min,x1) | |
112 | else if n > x1 && n < x2 then (x1,x2) else loop (x2::rest) in | |
113 | loop !plus_lines | |
114 | ||
115 | let collect_plus_lines top = | |
116 | plus_lines := []; | |
117 | let bind x y = () in | |
118 | let option_default = () in | |
119 | let donothing r k e = k e in | |
708f4980 | 120 | let mcode (_,_,info,mcodekind,_,_) = |
34e49164 | 121 | match mcodekind with |
951c7801 | 122 | Ast0.PLUS _ -> insert info.Ast0.pos_info.Ast0.line_start |
34e49164 C |
123 | | _ -> () in |
124 | let fn = | |
b1b2de81 | 125 | V0.flat_combiner bind option_default |
34e49164 | 126 | mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode |
34e49164 C |
127 | donothing donothing donothing donothing donothing donothing |
128 | donothing donothing donothing donothing donothing donothing donothing | |
129 | donothing donothing in | |
b1b2de81 | 130 | fn.VT0.combiner_rec_top_level top |
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131 | |
132 | (* --------------------------------------------------------------------- *) | |
133 | ||
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134 | type kind = |
135 | Neutral | AllMarked of Ast.count | NotAllMarked (* marked means + or - *) | |
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136 | |
137 | (* --------------------------------------------------------------------- *) | |
138 | (* The first part analyzes each of the minus tree and the plus tree | |
139 | separately *) | |
140 | ||
141 | (* ints are unique token indices (offset field) *) | |
142 | type node = | |
143 | Token (* tokens *) of kind * int (* unique index *) * Ast0.mcodekind * | |
144 | int list (* context tokens *) | |
145 | | Recursor (* children *) of kind * | |
146 | int list (* indices of all tokens at the level below *) * | |
147 | Ast0.mcodekind list (* tokens at the level below *) * | |
148 | int list | |
149 | | Bind (* neighbors *) of kind * | |
150 | int list (* indices of all tokens at current level *) * | |
151 | Ast0.mcodekind list (* tokens at current level *) * | |
152 | int list (* indices of all tokens at the level below *) * | |
153 | Ast0.mcodekind list (* tokens at the level below *) | |
154 | * int list list | |
155 | ||
156 | let kind2c = function | |
157 | Neutral -> "neutral" | |
951c7801 | 158 | | AllMarked _ -> "allmarked" |
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159 | | NotAllMarked -> "notallmarked" |
160 | ||
161 | let node2c = function | |
162 | Token(k,_,_,_) -> Printf.sprintf "token %s\n" (kind2c k) | |
163 | | Recursor(k,_,_,_) -> Printf.sprintf "recursor %s\n" (kind2c k) | |
164 | | Bind(k,_,_,_,_,_) -> Printf.sprintf "bind %s\n" (kind2c k) | |
165 | ||
166 | (* goal: detect negative in both tokens and recursors, or context only in | |
167 | tokens *) | |
168 | let bind c1 c2 = | |
169 | let lub = function | |
170 | (k1,k2) when k1 = k2 -> k1 | |
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171 | | (Neutral,AllMarked c) -> AllMarked c |
172 | | (AllMarked c,Neutral) -> AllMarked c | |
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173 | | _ -> NotAllMarked in |
174 | match (c1,c2) with | |
175 | (* token/token *) | |
176 | (* there are tokens at this level, so ignore the level below *) | |
177 | (Token(k1,i1,t1,l1),Token(k2,i2,t2,l2)) -> | |
178 | Bind(lub(k1,k2),[i1;i2],[t1;t2],[],[],[l1;l2]) | |
179 | ||
180 | (* token/recursor *) | |
181 | (* there are tokens at this level, so ignore the level below *) | |
182 | | (Token(k1,i1,t1,l1),Recursor(k2,_,_,l2)) -> | |
183 | Bind(lub(k1,k2),[i1],[t1],[],[],[l1;l2]) | |
184 | | (Recursor(k1,_,_,l1),Token(k2,i2,t2,l2)) -> | |
185 | Bind(lub(k1,k2),[i2],[t2],[],[],[l1;l2]) | |
186 | ||
187 | (* token/bind *) | |
188 | (* there are tokens at this level, so ignore the level below *) | |
189 | | (Token(k1,i1,t1,l1),Bind(k2,i2,t2,_,_,l2)) -> | |
190 | Bind(lub(k1,k2),i1::i2,t1::t2,[],[],l1::l2) | |
191 | | (Bind(k1,i1,t1,_,_,l1),Token(k2,i2,t2,l2)) -> | |
192 | Bind(lub(k1,k2),i1@[i2],t1@[t2],[],[],l1@[l2]) | |
193 | ||
194 | (* recursor/bind *) | |
195 | | (Recursor(k1,bi1,bt1,l1),Bind(k2,i2,t2,bi2,bt2,l2)) -> | |
196 | Bind(lub(k1,k2),i2,t2,bi1@bi2,bt1@bt2,l1::l2) | |
197 | | (Bind(k1,i1,t1,bi1,bt1,l1),Recursor(k2,bi2,bt2,l2)) -> | |
198 | Bind(lub(k1,k2),i1,t1,bi1@bi2,bt1@bt2,l1@[l2]) | |
199 | ||
200 | (* recursor/recursor and bind/bind - not likely to ever occur *) | |
201 | | (Recursor(k1,bi1,bt1,l1),Recursor(k2,bi2,bt2,l2)) -> | |
202 | Bind(lub(k1,k2),[],[],bi1@bi2,bt1@bt2,[l1;l2]) | |
203 | | (Bind(k1,i1,t1,bi1,bt1,l1),Bind(k2,i2,t2,bi2,bt2,l2)) -> | |
204 | Bind(lub(k1,k2),i1@i2,t1@t2,bi1@bi2,bt1@bt2,l1@l2) | |
205 | ||
206 | ||
207 | let option_default = (*Bind(Neutral,[],[],[],[],[])*) | |
208 | Recursor(Neutral,[],[],[]) | |
209 | ||
708f4980 | 210 | let mcode (_,_,info,mcodekind,pos,_) = |
0708f913 | 211 | let offset = info.Ast0.pos_info.Ast0.offset in |
34e49164 | 212 | match mcodekind with |
951c7801 C |
213 | Ast0.MINUS(_) -> Token(AllMarked Ast.ONE,offset,mcodekind,[]) |
214 | | Ast0.PLUS c -> Token(AllMarked c,offset,mcodekind,[]) | |
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215 | | Ast0.CONTEXT(_) -> Token(NotAllMarked,offset,mcodekind,[offset]) |
216 | | _ -> failwith "not possible" | |
217 | ||
708f4980 | 218 | let neutral_mcode (_,_,info,mcodekind,pos,_) = |
0708f913 | 219 | let offset = info.Ast0.pos_info.Ast0.offset in |
34e49164 C |
220 | match mcodekind with |
221 | Ast0.MINUS(_) -> Token(Neutral,offset,mcodekind,[]) | |
951c7801 | 222 | | Ast0.PLUS _ -> Token(Neutral,offset,mcodekind,[]) |
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223 | | Ast0.CONTEXT(_) -> Token(Neutral,offset,mcodekind,[offset]) |
224 | | _ -> failwith "not possible" | |
225 | ||
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226 | (* neutral for context; used for mcode in bef aft nodes that don't represent |
227 | anything if they don't contain some information *) | |
708f4980 | 228 | let nc_mcode (_,_,info,mcodekind,pos,_) = |
978fd7e5 C |
229 | (* distinguish from the offset of some real token *) |
230 | let offset = (-1) * info.Ast0.pos_info.Ast0.offset in | |
0708f913 | 231 | match mcodekind with |
951c7801 C |
232 | Ast0.MINUS(_) -> Token(AllMarked Ast.ONE,offset,mcodekind,[]) |
233 | | Ast0.PLUS c -> Token(AllMarked c,offset,mcodekind,[]) | |
978fd7e5 C |
234 | | Ast0.CONTEXT(_) -> |
235 | (* Unlike the other mcode cases, we drop the offset from the context | |
236 | offsets. This is because we don't know whether the term this is | |
237 | associated with is - or context. In any case, the context offsets are | |
238 | used for identification, and this invisible node should not be needed | |
239 | for this purpose. *) | |
240 | Token(Neutral,offset,mcodekind,[]) | |
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241 | | _ -> failwith "not possible" |
242 | ||
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243 | let is_context = function Ast0.CONTEXT(_) -> true | _ -> false |
244 | ||
245 | let union_all l = List.fold_left Common.union_set [] l | |
246 | ||
247 | (* is minus is true when we are processing minus code that might be | |
248 | intermingled with plus code. it is used in disj_cases *) | |
249 | let classify is_minus all_marked table code = | |
250 | let mkres builder k il tl bil btl l e = | |
951c7801 C |
251 | (match k with |
252 | AllMarked count -> | |
253 | Ast0.set_mcodekind e (all_marked count) (* definitive *) | |
254 | | _ -> | |
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255 | let check_index il tl = |
256 | if List.for_all is_context tl | |
257 | then | |
258 | (let e1 = builder e in | |
259 | let index = (get_index e1)@il in | |
260 | try | |
261 | let _ = Hashtbl.find table index in | |
262 | failwith | |
faf9a90c | 263 | (Printf.sprintf "line %d: index %s already used\n" |
0708f913 | 264 | (Ast0.get_info e).Ast0.pos_info.Ast0.line_start |
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265 | (String.concat " " (List.map string_of_int index))) |
266 | with Not_found -> Hashtbl.add table index (e1,l)) in | |
267 | if il = [] then check_index bil btl else check_index il tl); | |
268 | if il = [] | |
269 | then Recursor(k, bil, btl, union_all l) | |
270 | else Recursor(k, il, tl, union_all l) in | |
271 | ||
272 | let compute_result builder e = function | |
273 | Bind(k,il,tl,bil,btl,l) -> mkres builder k il tl bil btl l e | |
274 | | Token(k,il,tl,l) -> mkres builder k [il] [tl] [] [] [l] e | |
275 | | Recursor(k,bil,btl,l) -> mkres builder k [] [] bil btl [l] e in | |
276 | ||
277 | let make_not_marked = function | |
278 | Bind(k,il,tl,bil,btl,l) -> Bind(NotAllMarked,il,tl,bil,btl,l) | |
279 | | Token(k,il,tl,l) -> Token(NotAllMarked,il,tl,l) | |
280 | | Recursor(k,bil,btl,l) -> Recursor(NotAllMarked,bil,btl,l) in | |
281 | ||
282 | let do_nothing builder r k e = compute_result builder e (k e) in | |
283 | ||
284 | let disj_cases disj starter code fn ender = | |
285 | (* neutral_mcode used so starter and ender don't have an affect on | |
286 | whether the code is considered all plus/minus, but so that they are | |
287 | consider in the index list, which is needed to make a disj with | |
288 | something in one branch and nothing in the other different from code | |
289 | that just has the something (starter/ender enough, mids not needed | |
290 | for this). Cannot agglomerate + code over | boundaries, because two - | |
291 | cases might have different + code, and don't want to put the + code | |
292 | together into one unit. *) | |
293 | let make_not_marked = | |
294 | if is_minus | |
295 | then | |
296 | (let min = Ast0.get_line disj in | |
297 | let max = Ast0.get_line_end disj in | |
298 | let (plus_min,plus_max) = find min (min-1) (max+1) in | |
299 | if max > plus_max then make_not_marked else (function x -> x)) | |
300 | else make_not_marked in | |
301 | bind (neutral_mcode starter) | |
302 | (bind (List.fold_right bind | |
303 | (List.map make_not_marked (List.map fn code)) | |
304 | option_default) | |
305 | (neutral_mcode ender)) in | |
306 | ||
307 | (* no whencode in plus tree so have to drop it *) | |
308 | (* need special cases for dots, nests, and disjs *) | |
309 | let expression r k e = | |
310 | compute_result Ast0.expr e | |
311 | (match Ast0.unwrap e with | |
312 | Ast0.NestExpr(starter,exp,ender,whencode,multi) -> | |
313 | k (Ast0.rewrap e (Ast0.NestExpr(starter,exp,ender,None,multi))) | |
314 | | Ast0.Edots(dots,whencode) -> | |
315 | k (Ast0.rewrap e (Ast0.Edots(dots,None))) | |
316 | | Ast0.Ecircles(dots,whencode) -> | |
317 | k (Ast0.rewrap e (Ast0.Ecircles(dots,None))) | |
318 | | Ast0.Estars(dots,whencode) -> | |
319 | k (Ast0.rewrap e (Ast0.Estars(dots,None))) | |
faf9a90c | 320 | | Ast0.DisjExpr(starter,expr_list,_,ender) -> |
b1b2de81 | 321 | disj_cases e starter expr_list r.VT0.combiner_rec_expression ender |
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322 | | _ -> k e) in |
323 | ||
324 | (* not clear why we have the next two cases, since DisjDecl and | |
325 | DisjType shouldn't have been constructed yet, as they only come from isos *) | |
326 | let declaration r k e = | |
327 | compute_result Ast0.decl e | |
328 | (match Ast0.unwrap e with | |
329 | Ast0.DisjDecl(starter,decls,_,ender) -> | |
b1b2de81 | 330 | disj_cases e starter decls r.VT0.combiner_rec_declaration ender |
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331 | | Ast0.Ddots(dots,whencode) -> |
332 | k (Ast0.rewrap e (Ast0.Ddots(dots,None))) | |
333 | (* Need special cases for the following so that the type will be | |
334 | considered as a unit, rather than distributed around the | |
335 | declared variable. This needs to be done because of the call to | |
336 | compute_result, ie the processing of each term should make a | |
337 | side-effect on the complete term structure as well as collecting | |
338 | some information about it. So we have to visit each complete | |
339 | term structure. In (all?) other such cases, we visit the terms | |
340 | using rebuilder, which just visits the subterms, rather than | |
341 | reordering their components. *) | |
342 | | Ast0.Init(stg,ty,id,eq,ini,sem) -> | |
343 | bind (match stg with Some stg -> mcode stg | _ -> option_default) | |
b1b2de81 C |
344 | (bind (r.VT0.combiner_rec_typeC ty) |
345 | (bind (r.VT0.combiner_rec_ident id) | |
34e49164 | 346 | (bind (mcode eq) |
b1b2de81 | 347 | (bind (r.VT0.combiner_rec_initialiser ini) (mcode sem))))) |
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348 | | Ast0.UnInit(stg,ty,id,sem) -> |
349 | bind (match stg with Some stg -> mcode stg | _ -> option_default) | |
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350 | (bind (r.VT0.combiner_rec_typeC ty) |
351 | (bind (r.VT0.combiner_rec_ident id) (mcode sem))) | |
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352 | | _ -> k e) in |
353 | ||
354 | let param r k e = | |
355 | compute_result Ast0.param e | |
356 | (match Ast0.unwrap e with | |
357 | Ast0.Param(ty,Some id) -> | |
358 | (* needed for the same reason as in the Init and UnInit cases *) | |
b1b2de81 | 359 | bind (r.VT0.combiner_rec_typeC ty) (r.VT0.combiner_rec_ident id) |
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360 | | _ -> k e) in |
361 | ||
362 | let typeC r k e = | |
363 | compute_result Ast0.typeC e | |
364 | (match Ast0.unwrap e with | |
365 | Ast0.DisjType(starter,types,_,ender) -> | |
b1b2de81 | 366 | disj_cases e starter types r.VT0.combiner_rec_typeC ender |
34e49164 C |
367 | | _ -> k e) in |
368 | ||
369 | let initialiser r k i = | |
370 | compute_result Ast0.ini i | |
371 | (match Ast0.unwrap i with | |
372 | Ast0.Idots(dots,whencode) -> | |
373 | k (Ast0.rewrap i (Ast0.Idots(dots,None))) | |
374 | | _ -> k i) in | |
375 | ||
fc1ad971 C |
376 | let case_line r k e = |
377 | compute_result Ast0.case_line e | |
378 | (match Ast0.unwrap e with | |
379 | Ast0.DisjCase(starter,case_list,_,ender) -> | |
380 | disj_cases e starter case_list r.VT0.combiner_rec_case_line ender | |
381 | | _ -> k e) in | |
382 | ||
34e49164 C |
383 | let statement r k s = |
384 | compute_result Ast0.stmt s | |
385 | (match Ast0.unwrap s with | |
386 | Ast0.Nest(started,stm_dots,ender,whencode,multi) -> | |
387 | k (Ast0.rewrap s (Ast0.Nest(started,stm_dots,ender,[],multi))) | |
388 | | Ast0.Dots(dots,whencode) -> | |
389 | k (Ast0.rewrap s (Ast0.Dots(dots,[]))) | |
390 | | Ast0.Circles(dots,whencode) -> | |
391 | k (Ast0.rewrap s (Ast0.Circles(dots,[]))) | |
392 | | Ast0.Stars(dots,whencode) -> | |
393 | k (Ast0.rewrap s (Ast0.Stars(dots,[]))) | |
394 | | Ast0.Disj(starter,statement_dots_list,_,ender) -> | |
b1b2de81 | 395 | disj_cases s starter statement_dots_list r.VT0.combiner_rec_statement_dots |
34e49164 | 396 | ender |
34e49164 C |
397 | (* cases for everything with extra mcode *) |
398 | | Ast0.FunDecl((info,bef),_,_,_,_,_,_,_,_) | |
399 | | Ast0.Decl((info,bef),_) -> | |
708f4980 | 400 | bind (nc_mcode ((),(),info,bef,(),-1)) (k s) |
34e49164 C |
401 | | Ast0.IfThen(_,_,_,_,_,(info,aft)) |
402 | | Ast0.IfThenElse(_,_,_,_,_,_,_,(info,aft)) | |
34e49164 | 403 | | Ast0.Iterator(_,_,_,_,_,(info,aft)) |
0708f913 C |
404 | | Ast0.While(_,_,_,_,_,(info,aft)) |
405 | | Ast0.For(_,_,_,_,_,_,_,_,_,(info,aft)) -> | |
708f4980 | 406 | bind (k s) (nc_mcode ((),(),info,aft,(),-1)) |
34e49164 C |
407 | | _ -> k s |
408 | ||
409 | ) in | |
410 | ||
411 | let do_top builder r k e = compute_result builder e (k e) in | |
412 | ||
faf9a90c | 413 | let combiner = |
b1b2de81 | 414 | V0.flat_combiner bind option_default |
34e49164 | 415 | mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode |
34e49164 C |
416 | (do_nothing Ast0.dotsExpr) (do_nothing Ast0.dotsInit) |
417 | (do_nothing Ast0.dotsParam) (do_nothing Ast0.dotsStmt) | |
418 | (do_nothing Ast0.dotsDecl) (do_nothing Ast0.dotsCase) | |
419 | (do_nothing Ast0.ident) expression typeC initialiser param declaration | |
fc1ad971 | 420 | statement case_line (do_top Ast0.top) in |
b1b2de81 | 421 | combiner.VT0.combiner_rec_top_level code |
34e49164 C |
422 | |
423 | (* --------------------------------------------------------------------- *) | |
424 | (* Traverse the hash tables and find corresponding context nodes that have | |
425 | the same context children *) | |
426 | ||
427 | (* this is just a sanity check - really only need to look at the top-level | |
428 | structure *) | |
708f4980 | 429 | let equal_mcode (_,_,info1,_,_,_) (_,_,info2,_,_,_) = |
0708f913 | 430 | info1.Ast0.pos_info.Ast0.offset = info2.Ast0.pos_info.Ast0.offset |
34e49164 C |
431 | |
432 | let equal_option e1 e2 = | |
433 | match (e1,e2) with | |
434 | (Some x, Some y) -> equal_mcode x y | |
435 | | (None, None) -> true | |
436 | | _ -> false | |
437 | ||
438 | let dots fn d1 d2 = | |
439 | match (Ast0.unwrap d1,Ast0.unwrap d2) with | |
440 | (Ast0.DOTS(l1),Ast0.DOTS(l2)) -> List.length l1 = List.length l2 | |
441 | | (Ast0.CIRCLES(l1),Ast0.CIRCLES(l2)) -> List.length l1 = List.length l2 | |
442 | | (Ast0.STARS(l1),Ast0.STARS(l2)) -> List.length l1 = List.length l2 | |
443 | | _ -> false | |
444 | ||
445 | let rec equal_ident i1 i2 = | |
446 | match (Ast0.unwrap i1,Ast0.unwrap i2) with | |
447 | (Ast0.Id(name1),Ast0.Id(name2)) -> equal_mcode name1 name2 | |
448 | | (Ast0.MetaId(name1,_,_),Ast0.MetaId(name2,_,_)) -> | |
449 | equal_mcode name1 name2 | |
450 | | (Ast0.MetaFunc(name1,_,_),Ast0.MetaFunc(name2,_,_)) -> | |
451 | equal_mcode name1 name2 | |
452 | | (Ast0.MetaLocalFunc(name1,_,_),Ast0.MetaLocalFunc(name2,_,_)) -> | |
453 | equal_mcode name1 name2 | |
454 | | (Ast0.OptIdent(_),Ast0.OptIdent(_)) -> true | |
455 | | (Ast0.UniqueIdent(_),Ast0.UniqueIdent(_)) -> true | |
456 | | _ -> false | |
457 | ||
458 | let rec equal_expression e1 e2 = | |
459 | match (Ast0.unwrap e1,Ast0.unwrap e2) with | |
460 | (Ast0.Ident(_),Ast0.Ident(_)) -> true | |
461 | | (Ast0.Constant(const1),Ast0.Constant(const2)) -> equal_mcode const1 const2 | |
462 | | (Ast0.FunCall(_,lp1,_,rp1),Ast0.FunCall(_,lp2,_,rp2)) -> | |
463 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
464 | | (Ast0.Assignment(_,op1,_,_),Ast0.Assignment(_,op2,_,_)) -> | |
465 | equal_mcode op1 op2 | |
466 | | (Ast0.CondExpr(_,why1,_,colon1,_),Ast0.CondExpr(_,why2,_,colon2,_)) -> | |
467 | equal_mcode why1 why2 && equal_mcode colon1 colon2 | |
468 | | (Ast0.Postfix(_,op1),Ast0.Postfix(_,op2)) -> equal_mcode op1 op2 | |
469 | | (Ast0.Infix(_,op1),Ast0.Infix(_,op2)) -> equal_mcode op1 op2 | |
470 | | (Ast0.Unary(_,op1),Ast0.Unary(_,op2)) -> equal_mcode op1 op2 | |
471 | | (Ast0.Binary(_,op1,_),Ast0.Binary(_,op2,_)) -> equal_mcode op1 op2 | |
472 | | (Ast0.Paren(lp1,_,rp1),Ast0.Paren(lp2,_,rp2)) -> | |
473 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
474 | | (Ast0.ArrayAccess(_,lb1,_,rb1),Ast0.ArrayAccess(_,lb2,_,rb2)) -> | |
475 | equal_mcode lb1 lb2 && equal_mcode rb1 rb2 | |
476 | | (Ast0.RecordAccess(_,pt1,_),Ast0.RecordAccess(_,pt2,_)) -> | |
477 | equal_mcode pt1 pt2 | |
478 | | (Ast0.RecordPtAccess(_,ar1,_),Ast0.RecordPtAccess(_,ar2,_)) -> | |
479 | equal_mcode ar1 ar2 | |
480 | | (Ast0.Cast(lp1,_,rp1,_),Ast0.Cast(lp2,_,rp2,_)) -> | |
481 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
482 | | (Ast0.SizeOfExpr(szf1,_),Ast0.SizeOfExpr(szf2,_)) -> | |
483 | equal_mcode szf1 szf2 | |
484 | | (Ast0.SizeOfType(szf1,lp1,_,rp1),Ast0.SizeOfType(szf2,lp2,_,rp2)) -> | |
485 | equal_mcode szf1 szf2 && equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
486 | | (Ast0.TypeExp(_),Ast0.TypeExp(_)) -> true | |
487 | | (Ast0.MetaErr(name1,_,_),Ast0.MetaErr(name2,_,_)) | |
488 | | (Ast0.MetaExpr(name1,_,_,_,_),Ast0.MetaExpr(name2,_,_,_,_)) | |
489 | | (Ast0.MetaExprList(name1,_,_),Ast0.MetaExprList(name2,_,_)) -> | |
490 | equal_mcode name1 name2 | |
491 | | (Ast0.EComma(cm1),Ast0.EComma(cm2)) -> equal_mcode cm1 cm2 | |
492 | | (Ast0.DisjExpr(starter1,_,mids1,ender1), | |
493 | Ast0.DisjExpr(starter2,_,mids2,ender2)) -> | |
faf9a90c | 494 | equal_mcode starter1 starter2 && |
34e49164 C |
495 | List.for_all2 equal_mcode mids1 mids2 && |
496 | equal_mcode ender1 ender2 | |
497 | | (Ast0.NestExpr(starter1,_,ender1,_,m1), | |
498 | Ast0.NestExpr(starter2,_,ender2,_,m2)) -> | |
499 | equal_mcode starter1 starter2 && equal_mcode ender1 ender2 && m1 = m2 | |
500 | | (Ast0.Edots(dots1,_),Ast0.Edots(dots2,_)) | |
501 | | (Ast0.Ecircles(dots1,_),Ast0.Ecircles(dots2,_)) | |
502 | | (Ast0.Estars(dots1,_),Ast0.Estars(dots2,_)) -> equal_mcode dots1 dots2 | |
503 | | (Ast0.OptExp(_),Ast0.OptExp(_)) -> true | |
504 | | (Ast0.UniqueExp(_),Ast0.UniqueExp(_)) -> true | |
505 | | _ -> false | |
506 | ||
507 | let rec equal_typeC t1 t2 = | |
508 | match (Ast0.unwrap t1,Ast0.unwrap t2) with | |
509 | (Ast0.ConstVol(cv1,_),Ast0.ConstVol(cv2,_)) -> equal_mcode cv1 cv2 | |
faf9a90c C |
510 | | (Ast0.BaseType(ty1,stringsa),Ast0.BaseType(ty2,stringsb)) -> |
511 | List.for_all2 equal_mcode stringsa stringsb | |
512 | | (Ast0.Signed(sign1,_),Ast0.Signed(sign2,_)) -> | |
34e49164 C |
513 | equal_mcode sign1 sign2 |
514 | | (Ast0.Pointer(_,star1),Ast0.Pointer(_,star2)) -> | |
515 | equal_mcode star1 star2 | |
516 | | (Ast0.Array(_,lb1,_,rb1),Ast0.Array(_,lb2,_,rb2)) -> | |
517 | equal_mcode lb1 lb2 && equal_mcode rb1 rb2 | |
faf9a90c C |
518 | | (Ast0.EnumName(kind1,_),Ast0.EnumName(kind2,_)) -> |
519 | equal_mcode kind1 kind2 | |
34e49164 C |
520 | | (Ast0.StructUnionName(kind1,_),Ast0.StructUnionName(kind2,_)) -> |
521 | equal_mcode kind1 kind2 | |
522 | | (Ast0.FunctionType(ty1,lp1,p1,rp1),Ast0.FunctionType(ty2,lp2,p2,rp2)) -> | |
523 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
524 | | (Ast0.StructUnionDef(_,lb1,_,rb1), | |
525 | Ast0.StructUnionDef(_,lb2,_,rb2)) -> | |
526 | equal_mcode lb1 lb2 && equal_mcode rb1 rb2 | |
527 | | (Ast0.TypeName(name1),Ast0.TypeName(name2)) -> equal_mcode name1 name2 | |
528 | | (Ast0.MetaType(name1,_),Ast0.MetaType(name2,_)) -> | |
529 | equal_mcode name1 name2 | |
530 | | (Ast0.DisjType(starter1,_,mids1,ender1), | |
531 | Ast0.DisjType(starter2,_,mids2,ender2)) -> | |
faf9a90c | 532 | equal_mcode starter1 starter2 && |
34e49164 C |
533 | List.for_all2 equal_mcode mids1 mids2 && |
534 | equal_mcode ender1 ender2 | |
535 | | (Ast0.OptType(_),Ast0.OptType(_)) -> true | |
536 | | (Ast0.UniqueType(_),Ast0.UniqueType(_)) -> true | |
537 | | _ -> false | |
538 | ||
539 | let equal_declaration d1 d2 = | |
540 | match (Ast0.unwrap d1,Ast0.unwrap d2) with | |
541 | (Ast0.Init(stg1,_,_,eq1,_,sem1),Ast0.Init(stg2,_,_,eq2,_,sem2)) -> | |
542 | equal_option stg1 stg2 && equal_mcode eq1 eq2 && equal_mcode sem1 sem2 | |
543 | | (Ast0.UnInit(stg1,_,_,sem1),Ast0.UnInit(stg2,_,_,sem2)) -> | |
544 | equal_option stg1 stg2 && equal_mcode sem1 sem2 | |
545 | | (Ast0.MacroDecl(nm1,lp1,_,rp1,sem1),Ast0.MacroDecl(nm2,lp2,_,rp2,sem2)) -> | |
546 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 && equal_mcode sem1 sem2 | |
547 | | (Ast0.TyDecl(_,sem1),Ast0.TyDecl(_,sem2)) -> equal_mcode sem1 sem2 | |
548 | | (Ast0.Ddots(dots1,_),Ast0.Ddots(dots2,_)) -> equal_mcode dots1 dots2 | |
549 | | (Ast0.OptDecl(_),Ast0.OptDecl(_)) -> true | |
550 | | (Ast0.UniqueDecl(_),Ast0.UniqueDecl(_)) -> true | |
551 | | (Ast0.DisjDecl _,_) | (_,Ast0.DisjDecl _) -> | |
552 | failwith "DisjDecl not expected here" | |
553 | | _ -> false | |
554 | ||
113803cf C |
555 | let equal_designator d1 d2 = |
556 | match (d1,d2) with | |
557 | (Ast0.DesignatorField(dot1,_),Ast0.DesignatorField(dot2,_)) -> | |
558 | equal_mcode dot1 dot2 | |
559 | | (Ast0.DesignatorIndex(lb1,_,rb1),Ast0.DesignatorIndex(lb2,_,rb2)) -> | |
560 | (equal_mcode lb1 lb2) && (equal_mcode rb1 rb2) | |
561 | | (Ast0.DesignatorRange(lb1,_,dots1,_,rb1), | |
562 | Ast0.DesignatorRange(lb2,_,dots2,_,rb2)) -> | |
563 | (equal_mcode lb1 lb2) && (equal_mcode dots1 dots2) && | |
564 | (equal_mcode rb1 rb2) | |
565 | | _ -> false | |
566 | ||
34e49164 C |
567 | let equal_initialiser i1 i2 = |
568 | match (Ast0.unwrap i1,Ast0.unwrap i2) with | |
113803cf C |
569 | (Ast0.MetaInit(name1,_),Ast0.MetaInit(name2,_)) -> |
570 | equal_mcode name1 name2 | |
571 | | (Ast0.InitExpr(_),Ast0.InitExpr(_)) -> true | |
34e49164 C |
572 | | (Ast0.InitList(lb1,_,rb1),Ast0.InitList(lb2,_,rb2)) -> |
573 | (equal_mcode lb1 lb2) && (equal_mcode rb1 rb2) | |
113803cf C |
574 | | (Ast0.InitGccExt(designators1,eq1,_), |
575 | Ast0.InitGccExt(designators2,eq2,_)) -> | |
576 | (List.for_all2 equal_designator designators1 designators2) && | |
577 | (equal_mcode eq1 eq2) | |
34e49164 C |
578 | | (Ast0.InitGccName(_,eq1,_),Ast0.InitGccName(_,eq2,_)) -> |
579 | equal_mcode eq1 eq2 | |
113803cf | 580 | | (Ast0.IComma(cm1),Ast0.IComma(cm2)) -> equal_mcode cm1 cm2 |
34e49164 C |
581 | | (Ast0.Idots(d1,_),Ast0.Idots(d2,_)) -> equal_mcode d1 d2 |
582 | | (Ast0.OptIni(_),Ast0.OptIni(_)) -> true | |
583 | | (Ast0.UniqueIni(_),Ast0.UniqueIni(_)) -> true | |
584 | | _ -> false | |
faf9a90c | 585 | |
34e49164 C |
586 | let equal_parameterTypeDef p1 p2 = |
587 | match (Ast0.unwrap p1,Ast0.unwrap p2) with | |
588 | (Ast0.VoidParam(_),Ast0.VoidParam(_)) -> true | |
589 | | (Ast0.Param(_,_),Ast0.Param(_,_)) -> true | |
590 | | (Ast0.MetaParam(name1,_),Ast0.MetaParam(name2,_)) | |
591 | | (Ast0.MetaParamList(name1,_,_),Ast0.MetaParamList(name2,_,_)) -> | |
592 | equal_mcode name1 name2 | |
593 | | (Ast0.PComma(cm1),Ast0.PComma(cm2)) -> equal_mcode cm1 cm2 | |
594 | | (Ast0.Pdots(dots1),Ast0.Pdots(dots2)) | |
595 | | (Ast0.Pcircles(dots1),Ast0.Pcircles(dots2)) -> equal_mcode dots1 dots2 | |
596 | | (Ast0.OptParam(_),Ast0.OptParam(_)) -> true | |
597 | | (Ast0.UniqueParam(_),Ast0.UniqueParam(_)) -> true | |
598 | | _ -> false | |
599 | ||
600 | let rec equal_statement s1 s2 = | |
601 | match (Ast0.unwrap s1,Ast0.unwrap s2) with | |
602 | (Ast0.FunDecl(_,fninfo1,_,lp1,_,rp1,lbrace1,_,rbrace1), | |
603 | Ast0.FunDecl(_,fninfo2,_,lp2,_,rp2,lbrace2,_,rbrace2)) -> | |
604 | (List.length fninfo1) = (List.length fninfo2) && | |
605 | List.for_all2 equal_fninfo fninfo1 fninfo2 && | |
606 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 && | |
607 | equal_mcode lbrace1 lbrace2 && equal_mcode rbrace1 rbrace2 | |
608 | | (Ast0.Decl(_,_),Ast0.Decl(_,_)) -> true | |
609 | | (Ast0.Seq(lbrace1,_,rbrace1),Ast0.Seq(lbrace2,_,rbrace2)) -> | |
610 | equal_mcode lbrace1 lbrace2 && equal_mcode rbrace1 rbrace2 | |
611 | | (Ast0.ExprStatement(_,sem1),Ast0.ExprStatement(_,sem2)) -> | |
612 | equal_mcode sem1 sem2 | |
613 | | (Ast0.IfThen(iff1,lp1,_,rp1,_,_),Ast0.IfThen(iff2,lp2,_,rp2,_,_)) -> | |
614 | equal_mcode iff1 iff2 && equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
615 | | (Ast0.IfThenElse(iff1,lp1,_,rp1,_,els1,_,_), | |
616 | Ast0.IfThenElse(iff2,lp2,_,rp2,_,els2,_,_)) -> | |
617 | equal_mcode iff1 iff2 && | |
618 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 && equal_mcode els1 els2 | |
619 | | (Ast0.While(whl1,lp1,_,rp1,_,_),Ast0.While(whl2,lp2,_,rp2,_,_)) -> | |
620 | equal_mcode whl1 whl2 && equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
621 | | (Ast0.Do(d1,_,whl1,lp1,_,rp1,sem1),Ast0.Do(d2,_,whl2,lp2,_,rp2,sem2)) -> | |
622 | equal_mcode whl1 whl2 && equal_mcode d1 d2 && | |
623 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 && equal_mcode sem1 sem2 | |
624 | | (Ast0.For(fr1,lp1,_,sem11,_,sem21,_,rp1,_,_), | |
625 | Ast0.For(fr2,lp2,_,sem12,_,sem22,_,rp2,_,_)) -> | |
626 | equal_mcode fr1 fr2 && equal_mcode lp1 lp2 && | |
627 | equal_mcode sem11 sem12 && equal_mcode sem21 sem22 && | |
628 | equal_mcode rp1 rp2 | |
629 | | (Ast0.Iterator(nm1,lp1,_,rp1,_,_),Ast0.Iterator(nm2,lp2,_,rp2,_,_)) -> | |
630 | equal_mcode lp1 lp2 && equal_mcode rp1 rp2 | |
fc1ad971 C |
631 | | (Ast0.Switch(switch1,lp1,_,rp1,lb1,_,_,rb1), |
632 | Ast0.Switch(switch2,lp2,_,rp2,lb2,_,_,rb2)) -> | |
34e49164 C |
633 | equal_mcode switch1 switch2 && equal_mcode lp1 lp2 && |
634 | equal_mcode rp1 rp2 && equal_mcode lb1 lb2 && | |
635 | equal_mcode rb1 rb2 | |
636 | | (Ast0.Break(br1,sem1),Ast0.Break(br2,sem2)) -> | |
637 | equal_mcode br1 br2 && equal_mcode sem1 sem2 | |
638 | | (Ast0.Continue(cont1,sem1),Ast0.Continue(cont2,sem2)) -> | |
639 | equal_mcode cont1 cont2 && equal_mcode sem1 sem2 | |
640 | | (Ast0.Label(_,dd1),Ast0.Label(_,dd2)) -> | |
641 | equal_mcode dd1 dd2 | |
642 | | (Ast0.Goto(g1,_,sem1),Ast0.Goto(g2,_,sem2)) -> | |
643 | equal_mcode g1 g2 && equal_mcode sem1 sem2 | |
644 | | (Ast0.Return(ret1,sem1),Ast0.Return(ret2,sem2)) -> | |
645 | equal_mcode ret1 ret2 && equal_mcode sem1 sem2 | |
646 | | (Ast0.ReturnExpr(ret1,_,sem1),Ast0.ReturnExpr(ret2,_,sem2)) -> | |
647 | equal_mcode ret1 ret2 && equal_mcode sem1 sem2 | |
648 | | (Ast0.MetaStmt(name1,_),Ast0.MetaStmt(name2,_)) | |
649 | | (Ast0.MetaStmtList(name1,_),Ast0.MetaStmtList(name2,_)) -> | |
650 | equal_mcode name1 name2 | |
651 | | (Ast0.Disj(starter1,_,mids1,ender1),Ast0.Disj(starter2,_,mids2,ender2)) -> | |
faf9a90c | 652 | equal_mcode starter1 starter2 && |
34e49164 C |
653 | List.for_all2 equal_mcode mids1 mids2 && |
654 | equal_mcode ender1 ender2 | |
655 | | (Ast0.Nest(starter1,_,ender1,_,m1),Ast0.Nest(starter2,_,ender2,_,m2)) -> | |
656 | equal_mcode starter1 starter2 && equal_mcode ender1 ender2 && m1 = m2 | |
657 | | (Ast0.Exp(_),Ast0.Exp(_)) -> true | |
658 | | (Ast0.TopExp(_),Ast0.TopExp(_)) -> true | |
659 | | (Ast0.Ty(_),Ast0.Ty(_)) -> true | |
1be43e12 | 660 | | (Ast0.TopInit(_),Ast0.TopInit(_)) -> true |
34e49164 C |
661 | | (Ast0.Dots(d1,_),Ast0.Dots(d2,_)) |
662 | | (Ast0.Circles(d1,_),Ast0.Circles(d2,_)) | |
663 | | (Ast0.Stars(d1,_),Ast0.Stars(d2,_)) -> equal_mcode d1 d2 | |
664 | | (Ast0.Include(inc1,name1),Ast0.Include(inc2,name2)) -> | |
665 | equal_mcode inc1 inc2 && equal_mcode name1 name2 | |
666 | | (Ast0.Define(def1,_,_,_),Ast0.Define(def2,_,_,_)) -> | |
667 | equal_mcode def1 def2 | |
668 | | (Ast0.OptStm(_),Ast0.OptStm(_)) -> true | |
669 | | (Ast0.UniqueStm(_),Ast0.UniqueStm(_)) -> true | |
670 | | _ -> false | |
671 | ||
672 | and equal_fninfo x y = | |
673 | match (x,y) with | |
674 | (Ast0.FStorage(s1),Ast0.FStorage(s2)) -> equal_mcode s1 s2 | |
675 | | (Ast0.FType(_),Ast0.FType(_)) -> true | |
676 | | (Ast0.FInline(i1),Ast0.FInline(i2)) -> equal_mcode i1 i2 | |
677 | | (Ast0.FAttr(i1),Ast0.FAttr(i2)) -> equal_mcode i1 i2 | |
678 | | _ -> false | |
679 | ||
680 | let equal_case_line c1 c2 = | |
681 | match (Ast0.unwrap c1,Ast0.unwrap c2) with | |
682 | (Ast0.Default(def1,colon1,_),Ast0.Default(def2,colon2,_)) -> | |
683 | equal_mcode def1 def2 && equal_mcode colon1 colon2 | |
684 | | (Ast0.Case(case1,_,colon1,_),Ast0.Case(case2,_,colon2,_)) -> | |
685 | equal_mcode case1 case2 && equal_mcode colon1 colon2 | |
fc1ad971 C |
686 | | (Ast0.DisjCase(starter1,_,mids1,ender1), |
687 | Ast0.DisjCase(starter2,_,mids2,ender2)) -> | |
688 | equal_mcode starter1 starter2 && | |
689 | List.for_all2 equal_mcode mids1 mids2 && | |
690 | equal_mcode ender1 ender2 | |
34e49164 C |
691 | | (Ast0.OptCase(_),Ast0.OptCase(_)) -> true |
692 | | _ -> false | |
693 | ||
694 | let rec equal_top_level t1 t2 = | |
695 | match (Ast0.unwrap t1,Ast0.unwrap t2) with | |
696 | (Ast0.DECL(_),Ast0.DECL(_)) -> true | |
697 | | (Ast0.FILEINFO(old_file1,new_file1),Ast0.FILEINFO(old_file2,new_file2)) -> | |
698 | equal_mcode old_file1 old_file2 && equal_mcode new_file1 new_file2 | |
699 | | (Ast0.CODE(_),Ast0.CODE(_)) -> true | |
700 | | (Ast0.ERRORWORDS(_),Ast0.ERRORWORDS(_)) -> true | |
701 | | _ -> false | |
702 | ||
703 | let root_equal e1 e2 = | |
704 | match (e1,e2) with | |
705 | (Ast0.DotsExprTag(d1),Ast0.DotsExprTag(d2)) -> dots equal_expression d1 d2 | |
706 | | (Ast0.DotsParamTag(d1),Ast0.DotsParamTag(d2)) -> | |
707 | dots equal_parameterTypeDef d1 d2 | |
708 | | (Ast0.DotsStmtTag(d1),Ast0.DotsStmtTag(d2)) -> dots equal_statement d1 d2 | |
709 | | (Ast0.DotsDeclTag(d1),Ast0.DotsDeclTag(d2)) -> dots equal_declaration d1 d2 | |
710 | | (Ast0.DotsCaseTag(d1),Ast0.DotsCaseTag(d2)) -> dots equal_case_line d1 d2 | |
711 | | (Ast0.IdentTag(i1),Ast0.IdentTag(i2)) -> equal_ident i1 i2 | |
712 | | (Ast0.ExprTag(e1),Ast0.ExprTag(e2)) -> equal_expression e1 e2 | |
713 | | (Ast0.ArgExprTag(d),_) -> failwith "not possible - iso only" | |
714 | | (Ast0.TypeCTag(t1),Ast0.TypeCTag(t2)) -> equal_typeC t1 t2 | |
715 | | (Ast0.ParamTag(p1),Ast0.ParamTag(p2)) -> equal_parameterTypeDef p1 p2 | |
716 | | (Ast0.InitTag(d1),Ast0.InitTag(d2)) -> equal_initialiser d1 d2 | |
717 | | (Ast0.DeclTag(d1),Ast0.DeclTag(d2)) -> equal_declaration d1 d2 | |
718 | | (Ast0.StmtTag(s1),Ast0.StmtTag(s2)) -> equal_statement s1 s2 | |
719 | | (Ast0.TopTag(t1),Ast0.TopTag(t2)) -> equal_top_level t1 t2 | |
1be43e12 C |
720 | | (Ast0.IsoWhenTag(_),_) | (_,Ast0.IsoWhenTag(_)) |
721 | | (Ast0.IsoWhenTTag(_),_) | (_,Ast0.IsoWhenTTag(_)) | |
722 | | (Ast0.IsoWhenFTag(_),_) | (_,Ast0.IsoWhenFTag(_)) -> | |
34e49164 C |
723 | failwith "only within iso phase" |
724 | | _ -> false | |
725 | ||
726 | let default_context _ = | |
727 | Ast0.CONTEXT(ref(Ast.NOTHING, | |
728 | Ast0.default_token_info,Ast0.default_token_info)) | |
729 | ||
730 | let traverse minus_table plus_table = | |
731 | Hashtbl.iter | |
732 | (function key -> | |
733 | function (e,l) -> | |
734 | try | |
735 | let (plus_e,plus_l) = Hashtbl.find plus_table key in | |
736 | if root_equal e plus_e && | |
737 | List.for_all (function x -> x) | |
738 | (List.map2 Common.equal_set l plus_l) | |
739 | then | |
740 | let i = Ast0.fresh_index() in | |
741 | (set_index e i; set_index plus_e i; | |
742 | set_mcodekind e (default_context()); | |
743 | set_mcodekind plus_e (default_context())) | |
744 | with Not_found -> ()) | |
745 | minus_table | |
746 | ||
747 | (* --------------------------------------------------------------------- *) | |
748 | (* contextify the whencode *) | |
749 | ||
750 | let contextify_all = | |
751 | let bind x y = () in | |
752 | let option_default = () in | |
753 | let mcode x = () in | |
754 | let do_nothing r k e = Ast0.set_mcodekind e (default_context()); k e in | |
755 | ||
b1b2de81 | 756 | V0.flat_combiner bind option_default |
34e49164 | 757 | mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode |
34e49164 C |
758 | do_nothing do_nothing do_nothing do_nothing do_nothing do_nothing |
759 | do_nothing do_nothing do_nothing do_nothing do_nothing do_nothing | |
760 | do_nothing do_nothing do_nothing | |
761 | ||
762 | let contextify_whencode = | |
763 | let bind x y = () in | |
764 | let option_default = () in | |
34e49164 C |
765 | |
766 | let expression r k e = | |
767 | k e; | |
768 | match Ast0.unwrap e with | |
769 | Ast0.NestExpr(_,_,_,Some whencode,_) | |
770 | | Ast0.Edots(_,Some whencode) | |
771 | | Ast0.Ecircles(_,Some whencode) | |
772 | | Ast0.Estars(_,Some whencode) -> | |
b1b2de81 | 773 | contextify_all.VT0.combiner_rec_expression whencode |
34e49164 C |
774 | | _ -> () in |
775 | ||
776 | let initialiser r k i = | |
777 | match Ast0.unwrap i with | |
778 | Ast0.Idots(dots,Some whencode) -> | |
b1b2de81 | 779 | contextify_all.VT0.combiner_rec_initialiser whencode |
34e49164 C |
780 | | _ -> k i in |
781 | ||
782 | let whencode = function | |
b1b2de81 C |
783 | Ast0.WhenNot sd -> contextify_all.VT0.combiner_rec_statement_dots sd |
784 | | Ast0.WhenAlways s -> contextify_all.VT0.combiner_rec_statement s | |
1be43e12 | 785 | | Ast0.WhenModifier(_) -> () |
b1b2de81 C |
786 | | Ast0.WhenNotTrue(e) -> contextify_all.VT0.combiner_rec_expression e |
787 | | Ast0.WhenNotFalse(e) -> contextify_all.VT0.combiner_rec_expression e in | |
34e49164 C |
788 | |
789 | let statement r k (s : Ast0.statement) = | |
790 | k s; | |
791 | match Ast0.unwrap s with | |
792 | Ast0.Nest(_,_,_,whn,_) | |
793 | | Ast0.Dots(_,whn) | Ast0.Circles(_,whn) | Ast0.Stars(_,whn) -> | |
794 | List.iter whencode whn | |
795 | | _ -> () in | |
796 | ||
faf9a90c | 797 | let combiner = |
34e49164 | 798 | V0.combiner bind option_default |
b1b2de81 C |
799 | {V0.combiner_functions with |
800 | VT0.combiner_exprfn = expression; | |
801 | VT0.combiner_initfn = initialiser; | |
802 | VT0.combiner_stmtfn = statement} in | |
803 | combiner.VT0.combiner_rec_top_level | |
34e49164 C |
804 | |
805 | (* --------------------------------------------------------------------- *) | |
806 | ||
807 | (* the first int list is the tokens in the node, the second is the tokens | |
808 | in the descendents *) | |
809 | let minus_table = | |
810 | (Hashtbl.create(50) : (int list, Ast0.anything * int list list) Hashtbl.t) | |
811 | let plus_table = | |
812 | (Hashtbl.create(50) : (int list, Ast0.anything * int list list) Hashtbl.t) | |
813 | ||
814 | let iscode t = | |
815 | match Ast0.unwrap t with | |
816 | Ast0.DECL(_) -> true | |
817 | | Ast0.FILEINFO(_) -> true | |
818 | | Ast0.ERRORWORDS(_) -> false | |
819 | | Ast0.CODE(_) -> true | |
820 | | Ast0.OTHER(_) -> failwith "unexpected top level code" | |
821 | ||
822 | (* ------------------------------------------------------------------- *) | |
823 | (* alignment of minus and plus *) | |
824 | ||
825 | let concat = function | |
826 | [] -> [] | |
827 | | [s] -> [s] | |
828 | | l -> | |
829 | let rec loop = function | |
830 | [] -> [] | |
831 | | x::rest -> | |
832 | (match Ast0.unwrap x with | |
833 | Ast0.DECL(s) -> let stms = loop rest in s::stms | |
834 | | Ast0.CODE(ss) -> | |
835 | let stms = loop rest in | |
836 | (match Ast0.unwrap ss with | |
837 | Ast0.DOTS(d) -> d@stms | |
838 | | _ -> failwith "no dots allowed in pure plus code") | |
839 | | _ -> failwith "plus code is being discarded") in | |
840 | let res = | |
978fd7e5 | 841 | Compute_lines.compute_statement_dots_lines false |
34e49164 C |
842 | (Ast0.rewrap (List.hd l) (Ast0.DOTS (loop l))) in |
843 | [Ast0.rewrap res (Ast0.CODE res)] | |
844 | ||
845 | let collect_up_to m plus = | |
846 | let minfo = Ast0.get_info m in | |
0708f913 | 847 | let mend = minfo.Ast0.pos_info.Ast0.logical_end in |
34e49164 C |
848 | let rec loop = function |
849 | [] -> ([],[]) | |
faf9a90c | 850 | | p::plus -> |
34e49164 | 851 | let pinfo = Ast0.get_info p in |
0708f913 | 852 | let pstart = pinfo.Ast0.pos_info.Ast0.logical_start in |
34e49164 C |
853 | if pstart > mend |
854 | then ([],p::plus) | |
855 | else let (plus,rest) = loop plus in (p::plus,rest) in | |
856 | let (plus,rest) = loop plus in | |
857 | (concat plus,rest) | |
858 | ||
859 | let realign minus plus = | |
860 | let rec loop = function | |
861 | ([],_) -> failwith "not possible, some context required" | |
862 | | ([m],p) -> ([m],concat p) | |
863 | | (m::minus,plus) -> | |
864 | let (p,plus) = collect_up_to m plus in | |
865 | let (minus,plus) = loop (minus,plus) in | |
866 | (m::minus,p@plus) in | |
867 | loop (minus,plus) | |
868 | ||
869 | (* ------------------------------------------------------------------- *) | |
870 | (* check compatible: check that at the top level the minus and plus code is | |
871 | of the same kind. Could go further and make the correspondence between the | |
872 | code between ...s. *) | |
873 | ||
874 | let isonly f l = match Ast0.undots l with [s] -> f s | _ -> false | |
875 | ||
876 | let isall f l = List.for_all (isonly f) l | |
877 | ||
878 | let rec is_exp s = | |
879 | match Ast0.unwrap s with | |
880 | Ast0.Exp(e) -> true | |
881 | | Ast0.Disj(_,stmts,_,_) -> isall is_exp stmts | |
882 | | _ -> false | |
883 | ||
884 | let rec is_ty s = | |
885 | match Ast0.unwrap s with | |
886 | Ast0.Ty(e) -> true | |
887 | | Ast0.Disj(_,stmts,_,_) -> isall is_ty stmts | |
888 | | _ -> false | |
889 | ||
485bce71 C |
890 | let rec is_init s = |
891 | match Ast0.unwrap s with | |
892 | Ast0.TopInit(e) -> true | |
893 | | Ast0.Disj(_,stmts,_,_) -> isall is_init stmts | |
894 | | _ -> false | |
895 | ||
34e49164 C |
896 | let rec is_decl s = |
897 | match Ast0.unwrap s with | |
898 | Ast0.Decl(_,e) -> true | |
899 | | Ast0.FunDecl(_,_,_,_,_,_,_,_,_) -> true | |
900 | | Ast0.Disj(_,stmts,_,_) -> isall is_decl stmts | |
901 | | _ -> false | |
902 | ||
903 | let rec is_fndecl s = | |
904 | match Ast0.unwrap s with | |
905 | Ast0.FunDecl(_,_,_,_,_,_,_,_,_) -> true | |
906 | | Ast0.Disj(_,stmts,_,_) -> isall is_fndecl stmts | |
907 | | _ -> false | |
908 | ||
909 | let rec is_toplevel s = | |
910 | match Ast0.unwrap s with | |
911 | Ast0.Decl(_,e) -> true | |
912 | | Ast0.FunDecl(_,_,_,_,_,_,_,_,_) -> true | |
913 | | Ast0.Disj(_,stmts,_,_) -> isall is_toplevel stmts | |
914 | | Ast0.ExprStatement(fc,_) -> | |
915 | (match Ast0.unwrap fc with | |
916 | Ast0.FunCall(_,_,_,_) -> true | |
917 | | _ -> false) | |
918 | | Ast0.Include(_,_) -> true | |
919 | | Ast0.Define(_,_,_,_) -> true | |
920 | | _ -> false | |
921 | ||
922 | let check_compatible m p = | |
923 | let fail _ = | |
924 | failwith | |
925 | (Printf.sprintf | |
926 | "incompatible minus and plus code starting on lines %d and %d" | |
927 | (Ast0.get_line m) (Ast0.get_line p)) in | |
928 | match (Ast0.unwrap m, Ast0.unwrap p) with | |
929 | (Ast0.DECL(decl1),Ast0.DECL(decl2)) -> | |
930 | if not (is_decl decl1 && is_decl decl2) | |
931 | then fail() | |
932 | | (Ast0.DECL(decl1),Ast0.CODE(code2)) -> | |
933 | let v1 = is_decl decl1 in | |
934 | let v2 = List.for_all is_toplevel (Ast0.undots code2) in | |
935 | if !Flag.make_hrule = None && v1 && not v2 then fail() | |
936 | | (Ast0.CODE(code1),Ast0.DECL(decl2)) -> | |
937 | let v1 = List.for_all is_toplevel (Ast0.undots code1) in | |
938 | let v2 = is_decl decl2 in | |
939 | if v1 && not v2 then fail() | |
940 | | (Ast0.CODE(code1),Ast0.CODE(code2)) -> | |
485bce71 C |
941 | let v1 = isonly is_init code1 in |
942 | let v2a = isonly is_init code2 in | |
943 | let v2b = isonly is_exp code2 in | |
944 | if v1 | |
945 | then (if not (v2a || v2b) then fail()) | |
946 | else | |
947 | let testers = [is_exp;is_ty] in | |
948 | List.iter | |
949 | (function tester -> | |
950 | let v1 = isonly tester code1 in | |
951 | let v2 = isonly tester code2 in | |
952 | if (v1 && not v2) or (!Flag.make_hrule = None && v2 && not v1) | |
953 | then fail()) | |
954 | testers; | |
955 | let v1 = isonly is_fndecl code1 in | |
956 | let v2 = List.for_all is_toplevel (Ast0.undots code2) in | |
957 | if !Flag.make_hrule = None && v1 && not v2 then fail() | |
34e49164 C |
958 | | (Ast0.FILEINFO(_,_),Ast0.FILEINFO(_,_)) -> () |
959 | | (Ast0.OTHER(_),Ast0.OTHER(_)) -> () | |
960 | | _ -> fail() | |
961 | ||
962 | (* ------------------------------------------------------------------- *) | |
963 | ||
964 | (* returns a list of corresponding minus and plus trees *) | |
965 | let context_neg minus plus = | |
966 | Hashtbl.clear minus_table; | |
967 | Hashtbl.clear plus_table; | |
968 | List.iter contextify_whencode minus; | |
969 | let (minus,plus) = realign minus plus in | |
970 | let rec loop = function | |
971 | ([],[]) -> [] | |
972 | | ([],l) -> | |
973 | failwith (Printf.sprintf "%d plus things remaining" (List.length l)) | |
974 | | (minus,[]) -> | |
975 | plus_lines := []; | |
976 | let _ = | |
977 | List.map | |
978 | (function m -> | |
979 | classify true | |
980 | (function _ -> Ast0.MINUS(ref([],Ast0.default_token_info))) | |
981 | minus_table m) | |
982 | minus in | |
983 | [] | |
984 | | (((m::minus) as mall),((p::plus) as pall)) -> | |
985 | let minfo = Ast0.get_info m in | |
986 | let pinfo = Ast0.get_info p in | |
0708f913 C |
987 | let mstart = minfo.Ast0.pos_info.Ast0.logical_start in |
988 | let mend = minfo.Ast0.pos_info.Ast0.logical_end in | |
989 | let pstart = pinfo.Ast0.pos_info.Ast0.logical_start in | |
990 | let pend = pinfo.Ast0.pos_info.Ast0.logical_end in | |
34e49164 C |
991 | if (iscode m or iscode p) && |
992 | (mend + 1 = pstart or pend + 1 = mstart or (* adjacent *) | |
993 | (mstart <= pstart && mend >= pstart) or | |
994 | (pstart <= mstart && pend >= mstart)) (* overlapping or nested *) | |
995 | then | |
996 | begin | |
997 | (* ensure that the root of each tree has a unique index, | |
998 | although it might get overwritten if the node is a context | |
999 | node *) | |
1000 | let i = Ast0.fresh_index() in | |
1001 | Ast0.set_index m i; Ast0.set_index p i; | |
1002 | check_compatible m p; | |
1003 | collect_plus_lines p; | |
1004 | let _ = | |
1005 | classify true | |
1006 | (function _ -> Ast0.MINUS(ref([],Ast0.default_token_info))) | |
1007 | minus_table m in | |
951c7801 | 1008 | let _ = classify false (function c -> Ast0.PLUS c) plus_table p in |
34e49164 C |
1009 | traverse minus_table plus_table; |
1010 | (m,p)::loop(minus,plus) | |
1011 | end | |
1012 | else | |
1013 | if not(iscode m or iscode p) | |
1014 | then loop(minus,plus) | |
1015 | else | |
1016 | if mstart < pstart | |
1017 | then | |
1018 | begin | |
1019 | plus_lines := []; | |
1020 | let _ = | |
1021 | classify true | |
1022 | (function _ -> Ast0.MINUS(ref([],Ast0.default_token_info))) | |
1023 | minus_table m in | |
1024 | loop(minus,pall) | |
1025 | end | |
1026 | else loop(mall,plus) in | |
1027 | loop(minus,plus) |