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token_helpers.ml
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token_helpers.ml
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open Common
open Parser_c
(*****************************************************************************)
(* Is_xxx, categories *)
(*****************************************************************************)
let is_space = function
| TCommentSpace _ -> true
| TCommentNewline _ -> true
| _ -> false
let is_whitespace = is_space
let is_comment_or_space = function
| TComment _ -> true
| TCommentSpace _ -> true
| TCommentNewline _ -> true
| _ -> false
let is_real_comment = is_comment_or_space
let is_just_comment = function
| TComment _ -> true
| _ -> false
let is_comment = function
| TComment _
| TCommentSpace _ | TCommentNewline _
| TCommentCpp _
| TCommentMisc _ -> true
| _ -> false
let is_fake_comment = function
| TCommentCpp _ | TCommentMisc _
-> true
| _ -> false
let is_not_comment x =
not (is_comment x)
let is_cpp_instruction = function
| TInclude _
| TDefine _
| TIfdef _ | TIfdefelse _ | TIfdefelif _ | TEndif _
| TIfdefBool _ | TIfdefMisc _ | TIfdefVersion _
| TUndef _
| TCppDirectiveOther _
-> true
| _ -> false
let is_gcc_token = function
| Tasm _
| Tinline _
| Tattribute _
| Ttypeof _
-> true
| _ -> false
let is_opar = function
| TOPar _ | TOParDefine _ -> true
| _ -> false
let is_cpar = function
| TCPar _ | TCParEOL _ -> true
| _ -> false
let is_obrace = function
| TOBrace _ | TOBraceDefineInit _ -> true
| _ -> false
let is_cbrace = function
| TCBrace _ -> true
| _ -> false
let is_eof = function
| EOF x -> true
| _ -> false
let is_statement = function
| Tfor _ | Tdo _ | Tif _ | Twhile _ | Treturn _
| Tbreak _ | Telse _ | Tswitch _ | Tcase _ | Tcontinue _
| Tgoto _
| TPtVirg _
| TMacroIterator _
-> true
| _ -> false
(* is_start_of_something is used in parse_c for error recovery, to find
* a synchronisation token.
*
* Would like to put TIdent or TDefine, TIfdef but they can be in the
* middle of a function, for instance with label:.
*
* Could put Typedefident but fired ? it would work in error recovery
* on the already_passed tokens, which has been already gone in the
* Parsing_hacks.lookahead machinery, but it will not work on the
* "next" tokens. But because the namespace for labels is different
* from namespace for ident/typedef, we can use the name for a typedef
* for a label and so dangerous to put Typedefident at true here.
*
* Can look in parser_c.output to know what can be at toplevel
* at the very beginning.
*)
let is_start_of_something = function
| Tchar _ | Tshort _ | Tint _ | Tdouble _ | Tfloat _ | Tlong _
| Tunsigned _ | Tsigned _ | Tvoid _
| Tauto _ | Tregister _ | Textern _ | Tstatic _
| Tconst _ | Tvolatile _
| Ttypedef _
| Tstruct _ | Tunion _ | Tenum _
-> true
| _ -> false
let is_binary_operator = function
| TOrLog _ | TAndLog _ | TOr _ | TXor _ | TAnd _
| TEqEq _ | TNotEq _ | TInf _ | TSup _ | TInfEq _ | TSupEq _
| TShl _ | TShr _
| TPlus _ | TMinus _ | TMul _ | TDiv _ | TMod _
-> true
| _ -> false
let is_stuff_taking_parenthized = function
| Tif _
| Twhile _
| Tswitch _
| Ttypeof _
| TMacroIterator _
-> true
| _ -> false
(*****************************************************************************)
(* Visitors *)
(*****************************************************************************)
(* Because ocamlyacc force us to do it that way. The ocamlyacc token
* cant be a pair of a sum type, it must be directly a sum type.
*)
let info_of_tok = function
| TString ((string, isWchar), i) -> i
| TChar ((string, isWchar), i) -> i
| TFloat ((string, floatType), i) -> i
| TAssign (assignOp, i) -> i
| TIdent (s, i) -> i
| TypedefIdent (s, i) -> i
| TInt (s, i) -> i
| TDefine (ii) -> ii
| TInclude (includes, filename, inifdef, i1) -> i1
| TUndef (s, ii) -> ii
| TCppDirectiveOther (ii) -> ii
| TIncludeStart (i1, inifdef) -> i1
| TIncludeFilename (s, i1) -> i1
| TDefEOL (i1) -> i1
| TOParDefine (i1) -> i1
| TIdentDefine (s, i) -> i
| TCppEscapedNewline (ii) -> ii
| TDefParamVariadic (s, i1) -> i1
| TOBraceDefineInit (i1) -> i1
| TUnknown (i) -> i
| TMacroAttr (s, i) -> i
| TMacroAttrStorage (s, i) -> i
| TMacroStmt (s, i) -> i
| TMacroString (s, i) -> i
| TMacroDecl (s, i) -> i
| TMacroStructDecl (s, i) -> i
| TMacroDeclConst (i) -> i
| TMacroIterator (s,i) -> i
(* | TMacroTop (s,i) -> i *)
| TCParEOL (i1) -> i1
| TAction (i) -> i
| TComment (i) -> i
| TCommentSpace (i) -> i
| TCommentNewline (i) -> i
| TCommentCpp (cppkind, i) -> i
| TCommentMisc (i) -> i
| TIfdef (_, i) -> i
| TIfdefelse (_, i) -> i
| TIfdefelif (_, i) -> i
| TEndif (_, i) -> i
| TIfdefBool (b, _, i) -> i
| TIfdefMisc (b, _, i) -> i
| TIfdefVersion (b, _, i) -> i
| TOPar (i) -> i
| TCPar (i) -> i
| TOBrace (i) -> i
| TCBrace (i) -> i
| TOCro (i) -> i
| TCCro (i) -> i
| TDot (i) -> i
| TComma (i) -> i
| TPtrOp (i) -> i
| TInc (i) -> i
| TDec (i) -> i
| TEq (i) -> i
| TWhy (i) -> i
| TTilde (i) -> i
| TBang (i) -> i
| TEllipsis (i) -> i
| TDotDot (i) -> i
| TPtVirg (i) -> i
| TOrLog (i) -> i
| TAndLog (i) -> i
| TOr (i) -> i
| TXor (i) -> i
| TAnd (i) -> i
| TEqEq (i) -> i
| TNotEq (i) -> i
| TInf (i) -> i
| TSup (i) -> i
| TInfEq (i) -> i
| TSupEq (i) -> i
| TShl (i) -> i
| TShr (i) -> i
| TPlus (i) -> i
| TMinus (i) -> i
| TMul (i) -> i
| TDiv (i) -> i
| TMod (i) -> i
| Tchar (i) -> i
| Tshort (i) -> i
| Tint (i) -> i
| Tdouble (i) -> i
| Tfloat (i) -> i
| Tlong (i) -> i
| Tunsigned (i) -> i
| Tsigned (i) -> i
| Tvoid (i) -> i
| Tauto (i) -> i
| Tregister (i) -> i
| Textern (i) -> i
| Tstatic (i) -> i
| Tconst (i) -> i
| Tvolatile (i) -> i
| Trestrict (i) -> i
| Tstruct (i) -> i
| Tenum (i) -> i
| Ttypedef (i) -> i
| Tunion (i) -> i
| Tbreak (i) -> i
| Telse (i) -> i
| Tswitch (i) -> i
| Tcase (i) -> i
| Tcontinue (i) -> i
| Tfor (i) -> i
| Tdo (i) -> i
| Tif (i) -> i
| Twhile (i) -> i
| Treturn (i) -> i
| Tgoto (i) -> i
| Tdefault (i) -> i
| Tsizeof (i) -> i
| Tasm (i) -> i
| Tattribute (i) -> i
| Tinline (i) -> i
| Ttypeof (i) -> i
| EOF (i) -> i
(* used by tokens to complete the parse_info with filename, line, col infos *)
let visitor_info_of_tok f = function
| TString ((s, isWchar), i) -> TString ((s, isWchar), f i)
| TChar ((s, isWchar), i) -> TChar ((s, isWchar), f i)
| TFloat ((s, floatType), i) -> TFloat ((s, floatType), f i)
| TAssign (assignOp, i) -> TAssign (assignOp, f i)
| TIdent (s, i) -> TIdent (s, f i)
| TypedefIdent (s, i) -> TypedefIdent (s, f i)
| TInt (s, i) -> TInt (s, f i)
| TDefine (i1) -> TDefine(f i1)
| TUndef (s,i1) -> TUndef(s, f i1)
| TCppDirectiveOther (i1) -> TCppDirectiveOther(f i1)
| TInclude (includes, filename, inifdef, i1) ->
TInclude (includes, filename, inifdef, f i1)
| TIncludeStart (i1, inifdef) -> TIncludeStart (f i1, inifdef)
| TIncludeFilename (s, i1) -> TIncludeFilename (s, f i1)
| TCppEscapedNewline (i1) -> TCppEscapedNewline (f i1)
| TDefEOL (i1) -> TDefEOL (f i1)
| TOParDefine (i1) -> TOParDefine (f i1)
| TIdentDefine (s, i) -> TIdentDefine (s, f i)
| TDefParamVariadic (s, i1) -> TDefParamVariadic (s, f i1)
| TOBraceDefineInit (i1) -> TOBraceDefineInit (f i1)
| TUnknown (i) -> TUnknown (f i)
| TMacroAttr (s, i) -> TMacroAttr (s, f i)
| TMacroAttrStorage (s, i) -> TMacroAttrStorage (s, f i)
| TMacroStmt (s, i) -> TMacroStmt (s, f i)
| TMacroString (s, i) -> TMacroString (s, f i)
| TMacroDecl (s, i) -> TMacroDecl (s, f i)
| TMacroStructDecl (s, i) -> TMacroStructDecl (s, f i)
| TMacroDeclConst (i) -> TMacroDeclConst (f i)
| TMacroIterator (s, i) -> TMacroIterator (s, f i)
(* | TMacroTop (s,i) -> TMacroTop (s,f i) *)
| TCParEOL (i) -> TCParEOL (f i)
| TAction (i) -> TAction (f i)
| TComment (i) -> TComment (f i)
| TCommentSpace (i) -> TCommentSpace (f i)
| TCommentNewline (i) -> TCommentNewline (f i)
| TCommentCpp (cppkind, i) -> TCommentCpp (cppkind, f i)
| TCommentMisc (i) -> TCommentMisc (f i)
| TIfdef (t, i) -> TIfdef (t, f i)
| TIfdefelse (t, i) -> TIfdefelse (t, f i)
| TIfdefelif (t, i) -> TIfdefelif (t, f i)
| TEndif (t, i) -> TEndif (t, f i)
| TIfdefBool (b, t, i) -> TIfdefBool (b, t, f i)
| TIfdefMisc (b, t, i) -> TIfdefMisc (b, t, f i)
| TIfdefVersion (b, t, i) -> TIfdefVersion (b, t, f i)
| TOPar (i) -> TOPar (f i)
| TCPar (i) -> TCPar (f i)
| TOBrace (i) -> TOBrace (f i)
| TCBrace (i) -> TCBrace (f i)
| TOCro (i) -> TOCro (f i)
| TCCro (i) -> TCCro (f i)
| TDot (i) -> TDot (f i)
| TComma (i) -> TComma (f i)
| TPtrOp (i) -> TPtrOp (f i)
| TInc (i) -> TInc (f i)
| TDec (i) -> TDec (f i)
| TEq (i) -> TEq (f i)
| TWhy (i) -> TWhy (f i)
| TTilde (i) -> TTilde (f i)
| TBang (i) -> TBang (f i)
| TEllipsis (i) -> TEllipsis (f i)
| TDotDot (i) -> TDotDot (f i)
| TPtVirg (i) -> TPtVirg (f i)
| TOrLog (i) -> TOrLog (f i)
| TAndLog (i) -> TAndLog (f i)
| TOr (i) -> TOr (f i)
| TXor (i) -> TXor (f i)
| TAnd (i) -> TAnd (f i)
| TEqEq (i) -> TEqEq (f i)
| TNotEq (i) -> TNotEq (f i)
| TInf (i) -> TInf (f i)
| TSup (i) -> TSup (f i)
| TInfEq (i) -> TInfEq (f i)
| TSupEq (i) -> TSupEq (f i)
| TShl (i) -> TShl (f i)
| TShr (i) -> TShr (f i)
| TPlus (i) -> TPlus (f i)
| TMinus (i) -> TMinus (f i)
| TMul (i) -> TMul (f i)
| TDiv (i) -> TDiv (f i)
| TMod (i) -> TMod (f i)
| Tchar (i) -> Tchar (f i)
| Tshort (i) -> Tshort (f i)
| Tint (i) -> Tint (f i)
| Tdouble (i) -> Tdouble (f i)
| Tfloat (i) -> Tfloat (f i)
| Tlong (i) -> Tlong (f i)
| Tunsigned (i) -> Tunsigned (f i)
| Tsigned (i) -> Tsigned (f i)
| Tvoid (i) -> Tvoid (f i)
| Tauto (i) -> Tauto (f i)
| Tregister (i) -> Tregister (f i)
| Textern (i) -> Textern (f i)
| Tstatic (i) -> Tstatic (f i)
| Tconst (i) -> Tconst (f i)
| Tvolatile (i) -> Tvolatile (f i)
| Trestrict (i) -> Trestrict (f i)
| Tstruct (i) -> Tstruct (f i)
| Tenum (i) -> Tenum (f i)
| Ttypedef (i) -> Ttypedef (f i)
| Tunion (i) -> Tunion (f i)
| Tbreak (i) -> Tbreak (f i)
| Telse (i) -> Telse (f i)
| Tswitch (i) -> Tswitch (f i)
| Tcase (i) -> Tcase (f i)
| Tcontinue (i) -> Tcontinue (f i)
| Tfor (i) -> Tfor (f i)
| Tdo (i) -> Tdo (f i)
| Tif (i) -> Tif (f i)
| Twhile (i) -> Twhile (f i)
| Treturn (i) -> Treturn (f i)
| Tgoto (i) -> Tgoto (f i)
| Tdefault (i) -> Tdefault (f i)
| Tsizeof (i) -> Tsizeof (f i)
| Tasm (i) -> Tasm (f i)
| Tattribute (i) -> Tattribute (f i)
| Tinline (i) -> Tinline (f i)
| Ttypeof (i) -> Ttypeof (f i)
| EOF (i) -> EOF (f i)
(*****************************************************************************)
(* Accessors *)
(*****************************************************************************)
let linecol_of_tok tok =
let info = info_of_tok tok in
Ast_c.line_of_info info, Ast_c.col_of_info info
let col_of_tok x = snd (linecol_of_tok x)
let line_of_tok x = fst (linecol_of_tok x)
let pos_of_tok x = Ast_c.opos_of_info (info_of_tok x)
let str_of_tok x = Ast_c.str_of_info (info_of_tok x)
let file_of_tok x = Ast_c.file_of_info (info_of_tok x)
let pinfo_of_tok x = Ast_c.pinfo_of_info (info_of_tok x)
let is_origin x =
match pinfo_of_tok x with Ast_c.OriginTok _ -> true | _ -> false
let is_expanded x =
match pinfo_of_tok x with Ast_c.ExpandedTok _ -> true | _ -> false
let is_fake x =
match pinfo_of_tok x with Ast_c.FakeTok _ -> true | _ -> false
let is_abstract x =
match pinfo_of_tok x with Ast_c.AbstractLineTok _ -> true | _ -> false