HCoop / bpt / coccinelle.git / blame
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|---|---|---|
| f537ebc4 C |
1 | (* |
| 2 | * Copyright 2010, INRIA, University of Copenhagen | |
| 3 | * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix | |
| 4 | * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen | |
| 5 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix | |
| 6 | * This file is part of Coccinelle. | |
| 7 | * | |
| 8 | * Coccinelle is free software: you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License as published by | |
| 10 | * the Free Software Foundation, according to version 2 of the License. | |
| 11 | * | |
| 12 | * Coccinelle is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | * | |
| 20 | * The authors reserve the right to distribute this or future versions of | |
| 21 | * Coccinelle under other licenses. | |
| 22 | *) | |
| 23 | ||
| 24 | ||
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25 | (* detect statements that are between dots in the minus code, because they |
| 26 | may need a special treatment if they are if branches *) | |
| 27 | ||
| 28 | module Ast0 = Ast0_cocci | |
| 29 | module Ast = Ast_cocci | |
| 30 | module V0 = Visitor_ast0 | |
| b1b2de81 | 31 | module VT0 = Visitor_ast0_types |
| 34e49164 C |
32 | |
| 33 | (* --------------------------------------------------------------------- *) | |
| 34 | (* --------------------------------------------------------------------- *) | |
| 35 | (* Helpers *) | |
| 36 | ||
| 37 | let left_dots f l = | |
| 38 | match Ast0.undots l with | |
| 39 | [] -> false | |
| 40 | | x::xs -> f x | |
| 41 | ||
| 42 | let right_dots f l = | |
| 43 | match List.rev (Ast0.undots l) with | |
| 44 | [] -> false | |
| 45 | | x::xs -> f x | |
| 46 | ||
| 47 | let modif_before_mcode mc = | |
| 48 | match Ast0.get_mcode_mcodekind mc with | |
| 49 | Ast0.MINUS mc -> true (*conservative; don't want to hunt right for + code*) | |
| 951c7801 | 50 | | Ast0.PLUS _ -> failwith "not possible" |
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51 | | Ast0.CONTEXT mc -> |
| 52 | (match !mc with | |
| 53 | (Ast.BEFORE _,_,_) -> true | |
| 54 | | (Ast.BEFOREAFTER _,_,_) -> true | |
| 55 | | _ -> false) | |
| 56 | | Ast0.MIXED mc -> true (* don't think mcode can be mixed *) | |
| 57 | ||
| 58 | let modif_after_mcodekind = function | |
| 59 | Ast0.MINUS mc -> true (*conservative; don't want to hunt right for + code*) | |
| 951c7801 | 60 | | Ast0.PLUS _ -> failwith "not possible" |
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61 | | Ast0.CONTEXT mc -> |
| 62 | (match !mc with | |
| 63 | (Ast.AFTER _,_,_) -> true | |
| 64 | | (Ast.BEFOREAFTER _,_,_) -> true | |
| 65 | | _ -> false) | |
| 66 | | Ast0.MIXED mc -> true (* don't think mcode can be mixed *) | |
| 67 | ||
| 68 | let modif_after_mcode mc = modif_after_mcodekind (Ast0.get_mcode_mcodekind mc) | |
| 69 | ||
| 70 | let any_statements = | |
| 71 | List.exists | |
| 72 | (List.exists | |
| 73 | (function | |
| 74 | Ast.StatementTag(_) | Ast.StmtDotsTag(_) | |
| 75 | | Ast.DeclarationTag(_) | Ast.DeclDotsTag(_) -> true | _ -> false)) | |
| 76 | ||
| 77 | let modif_before x = | |
| 78 | match Ast0.get_mcodekind x with | |
| 951c7801 | 79 | Ast0.PLUS _ -> failwith "not possible" |
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80 | | Ast0.MINUS mc -> |
| 81 | (match !mc with | |
| 82 | (* do better for the common case of replacing a stmt by another one *) | |
| 8babbc8f | 83 | ((Ast.REPLACEMENT([[Ast.StatementTag(s)]],c)) as old,ti) -> |
| 34e49164 C |
84 | (match Ast.unwrap s with |
| 85 | Ast.IfThen(_,_,_) -> true (* potentially dangerous *) | |
| 8babbc8f | 86 | | _ -> mc := (old,ti); false) |
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87 | | (_,_) -> true) |
| 88 | | Ast0.CONTEXT mc | Ast0.MIXED mc -> | |
| 89 | (match !mc with | |
| 90 | (Ast.BEFORE _,_,_) -> true | |
| 91 | | (Ast.BEFOREAFTER _,_,_) -> true | |
| 92 | | _ -> false) | |
| 93 | ||
| 94 | let modif_after x = | |
| 95 | match Ast0.get_mcodekind x with | |
| 951c7801 | 96 | Ast0.PLUS _ -> failwith "not possible" |
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97 | | Ast0.MINUS mc -> |
| 98 | (match !mc with | |
| 99 | (* do better for the common case of replacing a stmt by another one *) | |
| 8babbc8f | 100 | ((Ast.REPLACEMENT([[Ast.StatementTag(s)]],count)) as old,ti) -> |
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101 | (match Ast.unwrap s with |
| 102 | Ast.IfThen(_,_,_) -> true (* potentially dangerous *) | |
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103 | | _ -> mc := (old,ti); false) |
| 104 | | (Ast.REPLACEMENT(l,_),_) when any_statements l -> true | |
| 951c7801 | 105 | | (l,ti) -> mc := (l,ti); false) |
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106 | | Ast0.CONTEXT mc | Ast0.MIXED mc -> |
| 107 | (match !mc with | |
| 108 | (Ast.AFTER _,_,_) -> true | |
| 109 | | (Ast.BEFOREAFTER _,_,_) -> true | |
| faf9a90c | 110 | | _ -> false) |
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111 | |
| 112 | (* Identifier *) | |
| 113 | let rec left_ident i = | |
| 114 | modif_before i or | |
| 115 | match Ast0.unwrap i with | |
| 116 | Ast0.Id(name) -> modif_before_mcode name | |
| 8babbc8f | 117 | | Ast0.MetaId(name,_,_,_) -> modif_before_mcode name |
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118 | | Ast0.MetaFunc(name,_,_) -> modif_before_mcode name |
| 119 | | Ast0.MetaLocalFunc(name,_,_) -> modif_before_mcode name | |
| d3f655c6 | 120 | | Ast0.DisjId(_,id_list,_,_) -> List.exists left_ident id_list |
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121 | | Ast0.OptIdent(id) -> left_ident id |
| 122 | | Ast0.UniqueIdent(id) -> left_ident id | |
| 123 | ||
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124 | let rec right_ident i = |
| 125 | modif_after i or | |
| 126 | match Ast0.unwrap i with | |
| 127 | Ast0.Id(name) -> modif_after_mcode name | |
| 8babbc8f | 128 | | Ast0.MetaId(name,_,_,_) -> modif_after_mcode name |
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129 | | Ast0.MetaFunc(name,_,_) -> modif_after_mcode name |
| 130 | | Ast0.MetaLocalFunc(name,_,_) -> modif_after_mcode name | |
| d3f655c6 | 131 | | Ast0.DisjId(_,id_list,_,_) -> List.exists right_ident id_list |
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132 | | Ast0.OptIdent(id) -> right_ident id |
| 133 | | Ast0.UniqueIdent(id) -> right_ident id | |
| 134 | ||
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135 | (* --------------------------------------------------------------------- *) |
| 136 | (* Expression *) | |
| 137 | ||
| 138 | let rec left_expression e = | |
| 139 | modif_before e or | |
| 140 | match Ast0.unwrap e with | |
| 141 | Ast0.Ident(id) -> left_ident id | |
| 142 | | Ast0.Constant(const) -> modif_before_mcode const | |
| 143 | | Ast0.FunCall(fn,lp,args,rp) -> left_expression fn | |
| 144 | | Ast0.Assignment(left,op,right,_) -> left_expression left | |
| 145 | | Ast0.CondExpr(exp1,why,exp2,colon,exp3) -> left_expression exp1 | |
| 146 | | Ast0.Postfix(exp,op) -> left_expression exp | |
| 147 | | Ast0.Infix(exp,op) -> modif_before_mcode op | |
| 148 | | Ast0.Unary(exp,op) -> modif_before_mcode op | |
| 149 | | Ast0.Binary(left,op,right) -> left_expression left | |
| 150 | | Ast0.Nested(left,op,right) -> left_expression left | |
| 151 | | Ast0.Paren(lp,exp,rp) -> modif_before_mcode lp | |
| 152 | | Ast0.ArrayAccess(exp1,lb,exp2,rb) -> left_expression exp1 | |
| 153 | | Ast0.RecordAccess(exp,pt,field) -> left_expression exp | |
| 154 | | Ast0.RecordPtAccess(exp,ar,field) -> left_expression exp | |
| 155 | | Ast0.Cast(lp,ty,rp,exp) -> modif_before_mcode lp | |
| 156 | | Ast0.SizeOfExpr(szf,exp) -> modif_before_mcode szf | |
| 157 | | Ast0.SizeOfType(szf,lp,ty,rp) -> modif_before_mcode szf | |
| 158 | | Ast0.TypeExp(ty) -> left_typeC ty | |
| 159 | | Ast0.MetaErr(name,_,_) -> modif_before_mcode name | |
| 160 | | Ast0.MetaExpr(name,_,ty,_,_) -> modif_before_mcode name | |
| 161 | | Ast0.MetaExprList(name,_,_) -> modif_before_mcode name | |
| 162 | | Ast0.EComma(cm) -> modif_before_mcode cm | |
| 163 | | Ast0.DisjExpr(_,exp_list,_,_) -> List.exists left_expression exp_list | |
| 164 | | Ast0.NestExpr(starter,expr_dots,ender,_,multi) -> | |
| 165 | left_dots left_expression expr_dots | |
| 166 | | Ast0.Edots(dots,_) | Ast0.Ecircles(dots,_) | Ast0.Estars(dots,_) -> false | |
| 167 | | Ast0.OptExp(exp) -> left_expression exp | |
| 168 | | Ast0.UniqueExp(exp) -> left_expression exp | |
| 169 | ||
| 170 | (* --------------------------------------------------------------------- *) | |
| 171 | (* Types *) | |
| 172 | ||
| 173 | and left_typeC t = | |
| 174 | modif_before t or | |
| 175 | match Ast0.unwrap t with | |
| 176 | Ast0.ConstVol(cv,ty) -> modif_before_mcode cv | |
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177 | | Ast0.BaseType(ty,strings) -> modif_before_mcode (List.hd strings) |
| 178 | | Ast0.Signed(sgn,ty) -> modif_before_mcode sgn | |
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179 | | Ast0.Pointer(ty,star) -> left_typeC ty |
| 180 | | Ast0.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2) -> left_typeC ty | |
| 181 | | Ast0.FunctionType(Some ty,lp1,params,rp1) -> left_typeC ty | |
| 182 | | Ast0.FunctionType(None,lp1,params,rp1) -> modif_before_mcode lp1 | |
| 183 | | Ast0.Array(ty,lb,size,rb) -> left_typeC ty | |
| faf9a90c | 184 | | Ast0.EnumName(kind,name) -> modif_before_mcode kind |
| c491d8ee | 185 | | Ast0.EnumDef(ty,lb,ids,rb) -> left_typeC ty |
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186 | | Ast0.StructUnionName(kind,name) -> modif_before_mcode kind |
| 187 | | Ast0.StructUnionDef(ty,lb,decls,rb) -> left_typeC ty | |
| 188 | | Ast0.TypeName(name) -> modif_before_mcode name | |
| 189 | | Ast0.MetaType(name,_) -> modif_before_mcode name | |
| 190 | | Ast0.DisjType(lp,types,mids,rp) -> List.exists left_typeC types | |
| 191 | | Ast0.OptType(ty) -> left_typeC ty | |
| 192 | | Ast0.UniqueType(ty) -> left_typeC ty | |
| 193 | ||
| 194 | (* --------------------------------------------------------------------- *) | |
| 195 | (* Variable declaration *) | |
| 196 | (* Even if the Cocci program specifies a list of declarations, they are | |
| 197 | split out into multiple declarations of a single variable each. *) | |
| 198 | ||
| 199 | and left_declaration d = | |
| 200 | modif_before d or | |
| 201 | match Ast0.unwrap d with | |
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202 | Ast0.MetaDecl(name,_) | Ast0.MetaField(name,_) |
| 203 | | Ast0.MetaFieldList(name,_,_) -> | |
| 204 | modif_before_mcode name | |
| 413ffc02 | 205 | | Ast0.Init(Some stg,ty,id,eq,ini,sem) -> modif_before_mcode stg |
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206 | | Ast0.Init(None,ty,id,eq,ini,sem) -> left_typeC ty |
| 207 | | Ast0.UnInit(Some stg,ty,id,sem) -> modif_before_mcode stg | |
| 208 | | Ast0.UnInit(None,ty,id,sem) -> left_typeC ty | |
| 209 | | Ast0.MacroDecl(name,lp,args,rp,sem) -> left_ident name | |
| 210 | | Ast0.TyDecl(ty,sem) -> left_typeC ty | |
| 211 | | Ast0.Typedef(stg,ty,id,sem) -> modif_before_mcode stg | |
| 212 | | Ast0.DisjDecl(_,decls,_,_) -> List.exists left_declaration decls | |
| 213 | | Ast0.Ddots(dots,_) -> false | |
| 214 | | Ast0.OptDecl(decl) -> left_declaration decl | |
| 215 | | Ast0.UniqueDecl(decl) -> left_declaration decl | |
| 216 | ||
| 217 | and right_declaration d = | |
| 218 | modif_before d or | |
| 219 | match Ast0.unwrap d with | |
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220 | Ast0.MetaDecl(name,_) | Ast0.MetaField(name,_) |
| 221 | | Ast0.MetaFieldList(name,_,_) -> | |
| 222 | modif_before_mcode name | |
| 413ffc02 | 223 | | Ast0.Init(_,ty,id,eq,ini,sem) -> modif_after_mcode sem |
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224 | | Ast0.UnInit(_,ty,id,sem) -> modif_after_mcode sem |
| 225 | | Ast0.MacroDecl(name,lp,args,rp,sem) -> modif_after_mcode sem | |
| 226 | | Ast0.TyDecl(ty,sem) -> modif_after_mcode sem | |
| 227 | | Ast0.Typedef(stg,ty,id,sem) -> modif_after_mcode sem | |
| 228 | | Ast0.DisjDecl(_,decls,_,_) -> List.exists right_declaration decls | |
| 229 | | Ast0.Ddots(dots,_) -> false | |
| 230 | | Ast0.OptDecl(decl) -> right_declaration decl | |
| 231 | | Ast0.UniqueDecl(decl) -> right_declaration decl | |
| 232 | ||
| 233 | (* --------------------------------------------------------------------- *) | |
| 234 | (* Top-level code *) | |
| 235 | ||
| 236 | and left_statement s = | |
| 237 | modif_before s or | |
| 238 | match Ast0.unwrap s with | |
| 239 | Ast0.FunDecl(_,fninfo,name,lp,params,rp,lbrace,body,rbrace) -> | |
| 240 | (* irrelevant *) false | |
| 241 | | Ast0.Decl(_,decl) -> left_declaration decl | |
| 242 | | Ast0.Seq(lbrace,body,rbrace) -> modif_before_mcode lbrace | |
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243 | | Ast0.ExprStatement(Some exp,sem) -> left_expression exp |
| 244 | | Ast0.ExprStatement(None,sem) -> modif_before_mcode sem | |
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245 | | Ast0.IfThen(iff,lp,exp,rp,branch1,(info,aft)) -> modif_before_mcode iff |
| 246 | | Ast0.IfThenElse(iff,lp,exp,rp,branch1,els,branch2,(info,aft)) -> | |
| 247 | modif_before_mcode iff | |
| 248 | | Ast0.While(whl,lp,exp,rp,body,(info,aft)) -> modif_before_mcode whl | |
| 249 | | Ast0.Do(d,body,whl,lp,exp,rp,sem) -> modif_before_mcode d | |
| 250 | | Ast0.For(fr,lp,e1,sem1,e2,sem2,e3,rp,body,(info,aft)) -> | |
| 251 | modif_before_mcode fr | |
| 252 | | Ast0.Iterator(nm,lp,args,rp,body,(info,aft)) -> left_ident nm | |
| fc1ad971 C |
253 | | Ast0.Switch(switch,lp,exp,rp,lb,decls,cases,rb) -> |
| 254 | modif_before_mcode switch | |
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255 | | Ast0.Break(br,sem) -> modif_before_mcode br |
| 256 | | Ast0.Continue(cont,sem) -> modif_before_mcode cont | |
| 257 | | Ast0.Label(l,dd) -> left_ident l | |
| 258 | | Ast0.Goto(goto,l,sem) -> modif_before_mcode goto | |
| 259 | | Ast0.Return(ret,sem) -> modif_before_mcode ret | |
| 260 | | Ast0.ReturnExpr(ret,exp,sem) -> modif_before_mcode ret | |
| 261 | | Ast0.MetaStmt(name,pure) -> modif_before_mcode name | |
| 262 | | Ast0.MetaStmtList(name,_) -> modif_before_mcode name | |
| 263 | | Ast0.Disj(_,statement_dots_list,_,_) -> | |
| 264 | List.exists (left_dots left_statement) statement_dots_list | |
| 265 | | Ast0.Nest(starter,stmt_dots,ender,whencode,multi) -> | |
| 266 | left_dots left_statement stmt_dots | |
| 267 | | Ast0.Exp(exp) -> false (* can only be replaced by an expression *) | |
| 268 | | Ast0.TopExp(exp) -> false (* as above *) | |
| 269 | | Ast0.Ty(ty) -> false (* can only be replaced by a type *) | |
| 1be43e12 | 270 | | Ast0.TopInit(init) -> false (* can only be replaced by an init *) |
| 34e49164 C |
271 | | Ast0.Dots(d,whn) | Ast0.Circles(d,whn) | Ast0.Stars(d,whn) -> false |
| 272 | | Ast0.Include(inc,s) -> modif_before_mcode inc | |
| 3a314143 | 273 | | Ast0.Undef(def,id) -> modif_before_mcode def |
| 34e49164 C |
274 | | Ast0.Define(def,id,params,body) -> modif_before_mcode def |
| 275 | | Ast0.OptStm(re) -> left_statement re | |
| 276 | | Ast0.UniqueStm(re) -> left_statement re | |
| 277 | ||
| 278 | and right_statement s = | |
| 279 | modif_after s or | |
| 280 | match Ast0.unwrap s with | |
| 281 | Ast0.FunDecl(_,fninfo,name,lp,params,rp,lbrace,body,rbrace) -> | |
| 282 | (* irrelevant *) false | |
| 283 | | Ast0.Decl(_,decl) -> right_declaration decl | |
| 284 | | Ast0.Seq(lbrace,body,rbrace) -> modif_after_mcode rbrace | |
| 285 | | Ast0.ExprStatement(exp,sem) -> modif_after_mcode sem | |
| 286 | | Ast0.IfThen(iff,lp,exp,rp,branch1,(info,aft)) -> modif_after_mcodekind aft | |
| 287 | | Ast0.IfThenElse(iff,lp,exp,rp,branch1,els,branch2,(info,aft)) -> | |
| 288 | modif_after_mcodekind aft | |
| 289 | | Ast0.While(whl,lp,exp,rp,body,(info,aft)) -> modif_after_mcodekind aft | |
| 290 | | Ast0.Do(d,body,whl,lp,exp,rp,sem) -> modif_after_mcode sem | |
| 291 | | Ast0.For(fr,lp,e1,sem1,e2,sem2,e3,rp,body,(info,aft)) -> | |
| 292 | modif_after_mcodekind aft | |
| 293 | | Ast0.Iterator(nm,lp,args,rp,body,(info,aft)) -> | |
| 294 | modif_after_mcodekind aft | |
| fc1ad971 | 295 | | Ast0.Switch(switch,lp,exp,rp,lb,decls,cases,rb) -> modif_after_mcode rb |
| 34e49164 C |
296 | | Ast0.Break(br,sem) -> modif_after_mcode sem |
| 297 | | Ast0.Continue(cont,sem) -> modif_after_mcode sem | |
| 298 | | Ast0.Label(l,dd) -> modif_after_mcode dd | |
| 299 | | Ast0.Goto(goto,l,sem) -> modif_after_mcode sem | |
| 300 | | Ast0.Return(ret,sem) -> modif_after_mcode sem | |
| 301 | | Ast0.ReturnExpr(ret,exp,sem) -> modif_after_mcode sem | |
| 302 | | Ast0.MetaStmt(name,pure) -> modif_after_mcode name | |
| 303 | | Ast0.MetaStmtList(name,_) -> modif_after_mcode name | |
| 304 | | Ast0.Disj(_,statement_dots_list,_,_) -> | |
| 305 | List.exists (right_dots right_statement) statement_dots_list | |
| 306 | | Ast0.Nest(starter,stmt_dots,ender,whencode,multi) -> | |
| 307 | right_dots right_statement stmt_dots | |
| 308 | | Ast0.Exp(exp) -> false (* can only be replaced by an expression *) | |
| 309 | | Ast0.TopExp(exp) -> false (* as above *) | |
| 310 | | Ast0.Ty(ty) -> false (* can only be replaced by a type *) | |
| 1be43e12 | 311 | | Ast0.TopInit(init) -> false (* can only be replaced by an init *) |
| 34e49164 C |
312 | | Ast0.Dots(d,whn) | Ast0.Circles(d,whn) | Ast0.Stars(d,whn) -> false |
| 313 | | Ast0.Include(inc,s) -> modif_after_mcode s | |
| 3a314143 | 314 | | Ast0.Undef(def,id) -> right_ident id |
| 34e49164 C |
315 | | Ast0.Define(def,id,params,body) -> right_dots right_statement body |
| 316 | | Ast0.OptStm(re) -> right_statement re | |
| 317 | | Ast0.UniqueStm(re) -> right_statement re | |
| 318 | ||
| 319 | (* --------------------------------------------------------------------- *) | |
| 320 | ||
| 321 | ||
| 322 | (* A very coarse approximation. We would really only like to return true | |
| 323 | if a new statement is added. For this it would be best to correlate with the | |
| 324 | plus slice. Or at least be sure that the new stuff is on the far left or | |
| 325 | far right. *) | |
| 326 | ||
| 327 | let rec adding_something s = | |
| 328 | match Ast0.get_mcodekind s with | |
| 329 | Ast0.MINUS(mc) -> | |
| 330 | (match !mc with | |
| 331 | (* do better for the common case of replacing a stmt by another one *) | |
| 8babbc8f | 332 | ((Ast.REPLACEMENT([[Ast.StatementTag(s)]],c)) as old,ti) -> |
| 34e49164 C |
333 | (match Ast.unwrap s with |
| 334 | Ast.IfThen(_,_,_) -> true (* potentially dangerous *) | |
| 8babbc8f | 335 | | _ -> mc := (old,ti); false) |
| 34e49164 C |
336 | | (_,_) -> true) |
| 337 | | Ast0.CONTEXT(mc) -> | |
| 338 | let (text,tinfo1,tinfo2) = !mc in | |
| 339 | (match text with Ast.NOTHING -> false | _ -> true) | |
| 340 | | Ast0.MIXED(_) -> | |
| b1b2de81 | 341 | not(contains_only_minus.VT0.combiner_rec_statement s) (*&& |
| 34e49164 C |
342 | (left_statement s) or (right_statement s)*) |
| 343 | | _ -> failwith "unexpected plus code" | |
| 344 | ||
| 345 | (* why do we need this; MINUS should mean the same thing *) | |
| 346 | and contains_only_minus = | |
| 347 | let bind x y = x && y in | |
| 348 | let option_default = true in | |
| 349 | let mcodekind = function | |
| 350 | Ast0.MINUS(mc) -> | |
| 351 | (match !mc with | |
| 8babbc8f | 352 | (Ast.NOREPLACEMENT,_) -> true |
| 34e49164 C |
353 | | _ -> false) |
| 354 | | Ast0.CONTEXT(mc) -> false | |
| 355 | | _ -> false in | |
| 708f4980 | 356 | let mcode (_,_,_,mc,_,_) = mcodekind mc in |
| 34e49164 C |
357 | |
| 358 | let donothing r k e = mcodekind (Ast0.get_mcodekind e) && k e in | |
| 359 | ||
| 360 | let dots r k e = | |
| 361 | match Ast0.unwrap e with | |
| 362 | Ast0.DOTS([]) | Ast0.CIRCLES([]) | Ast0.STARS([]) -> true | |
| 363 | | _ -> k e in | |
| 364 | ||
| d3f655c6 C |
365 | let identifier r k e = |
| 366 | mcodekind (Ast0.get_mcodekind e) && | |
| 367 | match Ast0.unwrap e with | |
| 368 | Ast0.DisjId(starter,id_list,mids,ender) -> | |
| 369 | List.for_all r.VT0.combiner_rec_ident id_list | |
| 370 | | _ -> k e in | |
| 371 | ||
| 34e49164 C |
372 | let expression r k e = |
| 373 | mcodekind (Ast0.get_mcodekind e) && | |
| 374 | match Ast0.unwrap e with | |
| 375 | Ast0.DisjExpr(starter,expr_list,mids,ender) -> | |
| b1b2de81 | 376 | List.for_all r.VT0.combiner_rec_expression expr_list |
| 34e49164 C |
377 | | _ -> k e in |
| 378 | ||
| 379 | let declaration r k e = | |
| 380 | mcodekind (Ast0.get_mcodekind e) && | |
| 381 | match Ast0.unwrap e with | |
| 382 | Ast0.DisjDecl(starter,decls,mids,ender) -> | |
| b1b2de81 | 383 | List.for_all r.VT0.combiner_rec_declaration decls |
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384 | | _ -> k e in |
| 385 | ||
| 386 | let typeC r k e = | |
| 387 | mcodekind (Ast0.get_mcodekind e) && | |
| 388 | match Ast0.unwrap e with | |
| 389 | Ast0.DisjType(starter,types,mids,ender) -> | |
| b1b2de81 | 390 | List.for_all r.VT0.combiner_rec_typeC types |
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391 | | _ -> k e in |
| 392 | ||
| 393 | let statement r k e = | |
| 394 | mcodekind (Ast0.get_mcodekind e) && | |
| 395 | match Ast0.unwrap e with | |
| 396 | Ast0.Disj(starter,statement_dots_list,mids,ender) -> | |
| b1b2de81 | 397 | List.for_all r.VT0.combiner_rec_statement_dots statement_dots_list |
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398 | | _ -> k e in |
| 399 | ||
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400 | let case_line r k e = |
| 401 | mcodekind (Ast0.get_mcodekind e) && | |
| 402 | match Ast0.unwrap e with | |
| 403 | Ast0.DisjCase(starter,case_list,mids,ender) -> | |
| 404 | List.for_all r.VT0.combiner_rec_case_line case_list | |
| 405 | | _ -> k e in | |
| 406 | ||
| b1b2de81 | 407 | V0.flat_combiner bind option_default |
| 34e49164 | 408 | mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode |
| 34e49164 | 409 | dots dots dots dots dots dots |
| d3f655c6 | 410 | identifier expression typeC donothing donothing declaration |
| fc1ad971 | 411 | statement case_line donothing |
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412 | |
| 413 | ||
| 414 | (* needs a special case when there is a Disj or an empty DOTS *) | |
| 415 | (* ---------------------------------------------------------------------- *) | |
| 416 | ||
| 417 | (* | |
| 418 | Doesn't really work: | |
| 419 | ||
| 420 | if (acpi_device_dir(device)) | |
| 421 | + { | |
| 422 | remove_proc_entry(acpi_device_bid(device), acpi_ac_dir); | |
| 423 | + acpi_device_dir(device) = NULL; | |
| 424 | + } | |
| 425 | ||
| 426 | The last two + lines get associated with the end of the if, not with the | |
| 427 | branch, so the braces get added in oddly. | |
| 428 | *) | |
| 429 | ||
| 430 | let add_braces orig_s = | |
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431 | let s = |
| 432 | (Iso_pattern.rebuild_mcode None).VT0.rebuilder_rec_statement orig_s in | |
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433 | let new_mcodekind = |
| 434 | match Ast0.get_mcodekind s with | |
| 435 | Ast0.MINUS(mc) -> | |
| 436 | let (text,tinfo) = !mc in | |
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437 | let inner_text = |
| 438 | match text with | |
| 439 | Ast.NOREPLACEMENT -> [[Ast.mkToken "{}"]] | |
| 440 | | Ast.REPLACEMENT(anythings,Ast.ONE) -> | |
| 441 | [Ast.mkToken "{"]::anythings@[[Ast.mkToken "}"]] | |
| 442 | | Ast.REPLACEMENT(anythings,Ast.MANY) -> | |
| 443 | failwith "++ not supported when braces must be added" in | |
| 444 | Ast0.MINUS(ref(Ast.REPLACEMENT(inner_text,Ast.ONE),tinfo)) | |
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445 | | Ast0.CONTEXT(mc) -> |
| 446 | let (text,tinfo1,tinfo2) = !mc in | |
| 447 | let new_text = | |
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448 | (* this is going to be a mess if we allow it to be iterable... |
| 449 | there would be one level of braces for every added things. | |
| 450 | need to come up with something better, or just add {} in the | |
| 451 | source code. *) | |
| 34e49164 | 452 | match text with |
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453 | Ast.BEFORE(bef,_) -> |
| 454 | Ast.BEFOREAFTER([Ast.mkToken "{"]::bef,[[Ast.mkToken "}"]], | |
| 455 | Ast.ONE) | |
| 456 | | Ast.AFTER(aft,_) -> | |
| 457 | Ast.BEFOREAFTER([[Ast.mkToken "{"]],aft@[[Ast.mkToken "}"]], | |
| 458 | Ast.ONE) | |
| 459 | | Ast.BEFOREAFTER(bef,aft,_) -> | |
| 460 | Ast.BEFOREAFTER([Ast.mkToken "{"]::bef,aft@[[Ast.mkToken "}"]], | |
| 461 | Ast.ONE) | |
| 34e49164 | 462 | | Ast.NOTHING -> |
| 951c7801 C |
463 | Ast.BEFOREAFTER([[Ast.mkToken "{"]],[[Ast.mkToken "}"]], |
| 464 | Ast.ONE) in | |
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465 | Ast0.CONTEXT(ref(new_text,tinfo1,tinfo2)) |
| 466 | | Ast0.MIXED(mc) -> | |
| 467 | let (text,tinfo1,tinfo2) = !mc in | |
| 468 | let new_text = | |
| 469 | match text with | |
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470 | Ast.BEFORE(bef,_) -> |
| 471 | Ast.BEFOREAFTER([Ast.mkToken "{"]::bef,[[Ast.mkToken "}"]], | |
| 472 | Ast.ONE) | |
| 473 | | Ast.AFTER(aft,_) -> | |
| 474 | Ast.BEFOREAFTER([[Ast.mkToken "{"]],aft@[[Ast.mkToken "}"]], | |
| 475 | Ast.ONE) | |
| 476 | | Ast.BEFOREAFTER(bef,aft,_) -> | |
| 477 | Ast.BEFOREAFTER([Ast.mkToken "{"]::bef,aft@[[Ast.mkToken "}"]], | |
| 478 | Ast.ONE) | |
| 34e49164 | 479 | | Ast.NOTHING -> |
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480 | Ast.BEFOREAFTER([[Ast.mkToken "{"]],[[Ast.mkToken "}"]], |
| 481 | Ast.ONE) in | |
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482 | Ast0.MIXED(ref(new_text,tinfo1,tinfo2)) |
| 483 | | _ -> failwith "unexpected plus code" in | |
| 484 | Ast0.set_mcodekind s new_mcodekind; | |
| 978fd7e5 | 485 | Compute_lines.compute_statement_lines true s |
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486 | |
| 487 | (* ---------------------------------------------------------------------- *) | |
| 488 | ||
| 489 | let is_dots x = | |
| 490 | match Ast0.unwrap x with | |
| 491 | Ast0.Dots(_,_) | Ast0.Circles(_,_) | Ast0.Stars(_,_) | |
| 492 | | Ast0.Nest(_,_,_,_,_) -> true | |
| 493 | | _ -> false | |
| 494 | ||
| 495 | let all_minus s = | |
| 496 | match Ast0.get_mcodekind s with | |
| 497 | Ast0.MINUS(_) -> true | |
| 498 | | _ -> false | |
| 499 | ||
| 500 | let rec unchanged_minus s = | |
| 501 | match Ast0.get_mcodekind s with | |
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502 | Ast0.MINUS(mc) -> |
| 503 | (match !mc with (Ast.NOREPLACEMENT,_) -> true | _ -> false) | |
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504 | | _ -> false |
| 505 | ||
| 506 | let rec do_branch s = | |
| 507 | if unchanged_minus s | |
| 508 | then | |
| 509 | Ast0.set_dots_bef_aft s (Ast0.DroppingBetweenDots(add_braces s)) | |
| 510 | else | |
| 511 | match Ast0.unwrap s with | |
| 512 | Ast0.Disj(starter,statement_dots_list,mids,ender) -> | |
| 513 | let stmts = | |
| 514 | List.map | |
| 515 | (function s -> | |
| 516 | match Ast0.unwrap s with | |
| 517 | Ast0.DOTS([s]) -> | |
| 518 | Ast0.rewrap s (Ast0.DOTS([do_branch s])) | |
| 519 | | Ast0.DOTS(_) -> s | |
| 520 | | _ -> failwith "not supported") | |
| 521 | statement_dots_list in | |
| 522 | Ast0.rewrap s (Ast0.Disj(starter,stmts,mids,ender)) | |
| 523 | | _ -> s | |
| 524 | ||
| 525 | let rec statement dots_before dots_after s = | |
| 526 | let do_one s = | |
| 527 | if dots_before && dots_after | |
| 528 | then | |
| 529 | if unchanged_minus s | |
| 530 | then | |
| 531 | (let with_braces = add_braces s in | |
| 532 | Ast0.set_dots_bef_aft s (Ast0.DroppingBetweenDots(with_braces))) | |
| 533 | else if adding_something s | |
| 534 | then | |
| 535 | (let with_braces = add_braces s in | |
| 536 | Ast0.set_dots_bef_aft s (Ast0.AddingBetweenDots(with_braces))) | |
| 537 | else s | |
| 538 | else s in | |
| 539 | ||
| 540 | match Ast0.unwrap s with | |
| 541 | Ast0.FunDecl(x,fninfo,name,lp,params,rp,lbrace,body,rbrace) -> | |
| 542 | (* true for close brace, because that represents any way we can | |
| 543 | exit the function, which is not necessarily followed by an explicit | |
| 544 | close brace. *) | |
| 545 | Ast0.rewrap s | |
| 546 | (Ast0.FunDecl(x,fninfo,name,lp,params,rp,lbrace, | |
| 547 | statement_dots false true body, | |
| 548 | rbrace)) | |
| 549 | | Ast0.Decl(_,_) -> s | |
| 550 | | Ast0.Seq(lbrace,body,rbrace) -> | |
| 551 | Ast0.rewrap s | |
| 552 | (Ast0.Seq(lbrace,statement_dots false false body,rbrace)) | |
| 553 | | Ast0.ExprStatement(exp,sem) -> do_one s | |
| 554 | | Ast0.IfThen(iff,lp,exp,rp,branch1,x) -> | |
| 555 | do_one | |
| 556 | (Ast0.rewrap s | |
| 557 | (Ast0.IfThen(iff,lp,exp,rp,statement false false branch1,x))) | |
| 558 | | Ast0.IfThenElse(iff,lp,exp,rp,branch1,els,branch2,x) -> | |
| 559 | do_one | |
| 560 | (Ast0.rewrap s | |
| 561 | (Ast0.IfThenElse | |
| 562 | (iff,lp,exp,rp, | |
| 563 | statement false false branch1,els, | |
| 564 | statement false false branch2,x))) | |
| 565 | | Ast0.While(whl,lp,exp,rp,body,x) -> | |
| 566 | do_one | |
| 567 | (Ast0.rewrap s | |
| 568 | (Ast0.While(whl,lp,exp,rp,statement false false body,x))) | |
| 569 | | Ast0.Do(d,body,whl,lp,exp,rp,sem) -> | |
| 570 | do_one | |
| 571 | (Ast0.rewrap s | |
| 572 | (Ast0.Do(d,statement false false body,whl,lp,exp,rp,sem))) | |
| 573 | | Ast0.For(fr,lp,e1,sem1,e2,sem2,e3,rp,body,x) -> | |
| 574 | do_one | |
| 575 | (Ast0.rewrap s | |
| 576 | (Ast0.For(fr,lp,e1,sem1,e2,sem2,e3,rp, | |
| 577 | statement false false body,x))) | |
| 578 | | Ast0.Iterator(nm,lp,args,rp,body,x) -> | |
| 579 | do_one | |
| 580 | (Ast0.rewrap s | |
| 581 | (Ast0.Iterator(nm,lp,args,rp,statement false false body,x))) | |
| fc1ad971 | 582 | | Ast0.Switch(switch,lp,exp,rp,lb,decls,cases,rb) -> |
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583 | do_one |
| 584 | (Ast0.rewrap s | |
| fc1ad971 | 585 | (Ast0.Switch(switch,lp,exp,rp,lb,decls, |
| 34e49164 | 586 | Ast0.rewrap cases |
| fc1ad971 C |
587 | (Ast0.DOTS |
| 588 | (List.map case_line (Ast0.undots cases))), | |
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589 | rb))) |
| 590 | | Ast0.Break(br,sem) -> do_one s | |
| 591 | | Ast0.Continue(cont,sem) -> do_one s | |
| 592 | | Ast0.Label(l,dd) -> do_one s | |
| 593 | | Ast0.Goto(goto,l,sem) -> do_one s | |
| 594 | | Ast0.Return(ret,sem) -> do_one s | |
| 595 | | Ast0.ReturnExpr(ret,exp,sem) -> do_one s | |
| 596 | | Ast0.MetaStmt(name,_) -> do_one s | |
| 597 | | Ast0.MetaStmtList(name,_) -> do_one s | |
| 598 | | Ast0.Disj(starter,statement_dots_list,mids,ender) -> | |
| 599 | Ast0.rewrap s | |
| 600 | (Ast0.Disj(starter, | |
| 601 | List.map (statement_dots dots_before dots_after) | |
| 602 | statement_dots_list, | |
| 603 | mids,ender)) | |
| 604 | | Ast0.Nest(starter,stmt_dots,ender,whencode,multi) -> | |
| 5636bb2c C |
605 | (match Ast0.get_mcode_mcodekind starter with |
| 606 | Ast0.MINUS _ -> (* everything removed, like -... *) s | |
| 607 | | _ -> | |
| 608 | Ast0.rewrap s | |
| 609 | (Ast0.Nest | |
| 610 | (starter,statement_dots true true stmt_dots,ender, | |
| 611 | whencode,multi))) | |
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612 | | Ast0.Exp(exp) -> s |
| 613 | | Ast0.TopExp(exp) -> s | |
| 614 | | Ast0.Ty(ty) -> s | |
| 1be43e12 | 615 | | Ast0.TopInit(init) -> s |
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616 | | Ast0.Dots(d,whn) | Ast0.Circles(d,whn) | Ast0.Stars(d,whn) -> s |
| 617 | | Ast0.Include(inc,string) -> s (* doesn't affect the need for braces *) | |
| 3a314143 | 618 | | Ast0.Undef(def,id) -> s (* same as include *) |
| 34e49164 | 619 | | Ast0.Define(def,id,params,body) -> s (* same as include *) |
| faf9a90c | 620 | | Ast0.OptStm(re) -> |
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621 | Ast0.rewrap s |
| 622 | (Ast0.OptStm(statement dots_before dots_after re)) | |
| 623 | | Ast0.UniqueStm(re) -> | |
| 624 | Ast0.rewrap s | |
| 625 | (Ast0.UniqueStm(statement dots_before dots_after re)) | |
| 626 | ||
| 627 | and case_line c = | |
| 628 | Ast0.rewrap c | |
| 629 | (match Ast0.unwrap c with | |
| 630 | Ast0.Default(def,colon,code) -> | |
| 631 | Ast0.Default(def,colon,statement_dots false false code) | |
| 632 | | Ast0.Case(case,exp,colon,code) -> | |
| 633 | Ast0.Case(case,exp,colon,statement_dots false false code) | |
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634 | | Ast0.DisjCase(starter,case_lines,mids,ender) -> |
| 635 | Ast0.DisjCase(starter,List.map case_line case_lines,mids,ender) | |
| 34e49164 | 636 | | Ast0.OptCase(case) -> Ast0.OptCase(case_line c)) |
| faf9a90c | 637 | |
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638 | and do_statement_dots dots_before dots_after = function |
| 639 | [] -> [] | |
| 640 | | [x] -> [statement dots_before dots_after x] | |
| 641 | | dots::rest when is_dots dots -> | |
| 642 | dots::(do_statement_dots true dots_after rest) | |
| 643 | | x::(dots::_ as rest) when is_dots dots -> | |
| 644 | (statement dots_before true x):: | |
| 645 | do_statement_dots false dots_after rest | |
| 646 | | x::rest -> | |
| 647 | (statement dots_before false x):: | |
| 648 | do_statement_dots false dots_after rest | |
| faf9a90c | 649 | |
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650 | and statement_dots dots_before dots_after d = |
| 651 | Ast0.rewrap d | |
| 652 | (match Ast0.unwrap d with | |
| 653 | Ast0.DOTS(l) -> | |
| 654 | Ast0.DOTS(do_statement_dots dots_before dots_after l) | |
| 655 | | Ast0.CIRCLES(l) -> | |
| 656 | Ast0.CIRCLES(do_statement_dots dots_before dots_after l) | |
| 657 | | Ast0.STARS(l) -> | |
| 658 | Ast0.STARS(do_statement_dots dots_before dots_after l)) | |
| 659 | ||
| 660 | let top_level t = | |
| 661 | Ast0.rewrap t | |
| 662 | (match Ast0.unwrap t with | |
| 65038c61 | 663 | Ast0.NONDECL(stmt_dots) -> Ast0.NONDECL(statement true true stmt_dots) |
| 34e49164 C |
664 | | Ast0.CODE(stmt_dots) -> Ast0.CODE(statement_dots true true stmt_dots) |
| 665 | | t -> t) | |
| 666 | ||
| 667 | let single_statement l = | |
| 668 | if !Flag_parsing_cocci.sgrep_mode then l else List.map top_level l |