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|
-- |
-- Module : Language.C.Parser.Tokens
-- Copyright : (c) 2006-2011 Harvard University
-- (c) 2011-2013 Geoffrey Mainland
-- (c) 2013 Manuel M T Chakravarty
-- (c) 2013-2016 Drexel University
-- License : BSD-style
-- Maintainer : mainland@drexel.edu
module Language.C.Parser.Tokens (
Token(..),
ExtensionsInt,
keywords,
keywordMap
) where
import Data.Bits
import Data.Char (isAlphaNum,
isLower)
import Data.List (foldl')
import qualified Data.Map as Map
import Data.Maybe (fromMaybe)
import Data.Word
import Text.PrettyPrint.Mainland
import Text.PrettyPrint.Mainland.Class
import Language.C.Syntax (Extensions(..),
Signed(..))
data Token = Teof
| Tpragma String
| Tcomment String -- ^ Raw comment string
| TintConst (String, Signed, Integer)
| TlongIntConst (String, Signed, Integer)
| TlongLongIntConst (String, Signed, Integer)
| TfloatConst (String, Float)
| TdoubleConst (String, Double)
| TlongDoubleConst (String, Double)
| TcharConst (String, Char)
| TstringConst (String, String)
| Tidentifier String
| Tnamed String
| Tlparen
| Trparen
| Tlbrack
| Trbrack
| Tlbrace
| Trbrace
| Tcomma
| Tsemi
| Tcolon
| Tquestion
| Tdot
| Tarrow
| Tellipses
| Tplus
| Tminus
| Tstar
| Tdiv
| Tmod
| Tnot
| Tand
| Tor
| Txor
| Tlsh
| Trsh
| Tinc
| Tdec
| Tlnot
| Tland
| Tlor
| Teq
| Tne
| Tlt
| Tgt
| Tle
| Tge
| Tassign
| Tadd_assign
| Tsub_assign
| Tmul_assign
| Tdiv_assign
| Tmod_assign
| Tlsh_assign
| Trsh_assign
| Tand_assign
| Tor_assign
| Txor_assign
| Tauto
| Tbreak
| Tcase
| Tchar
| Tconst
| Tcontinue
| Tdefault
| Tdo
| Tdouble
| Telse
| Tenum
| Textern
| Tfloat
| Tfor
| Tgoto
| Tif
| Tint
| Tlong
| Tregister
| Treturn
| Tshort
| Tsigned
| Tsizeof
| Tstatic
| Tstruct
| Tswitch
| Ttypedef
| Tunion
| Tunsigned
| Tvoid
| Tvolatile
| Twhile
| Ttypename
| Tanti_id String
| Tanti_const String
| Tanti_int String
| Tanti_uint String
| Tanti_lint String
| Tanti_ulint String
| Tanti_llint String
| Tanti_ullint String
| Tanti_float String
| Tanti_double String
| Tanti_long_double String
| Tanti_char String
| Tanti_string String
| Tanti_exp String
| Tanti_func String
| Tanti_args String
| Tanti_decl String
| Tanti_decls String
| Tanti_sdecl String
| Tanti_sdecls String
| Tanti_enum String
| Tanti_enums String
| Tanti_esc String
| Tanti_escstm String
| Tanti_edecl String
| Tanti_edecls String
| Tanti_item String
| Tanti_items String
| Tanti_stm String
| Tanti_stms String
| Tanti_type_qual String
| Tanti_type_quals String
| Tanti_type String
| Tanti_spec String
| Tanti_param String
| Tanti_params String
| Tanti_pragma String
| Tanti_comment String
| Tanti_init String
| Tanti_inits String
| Tanti_attr String
| Tanti_attrs String
-- C99
| TBool
| TComplex
| TImaginary
| Tinline
| Trestrict
-- GCC
| Tasm
| Tattribute
| Tbuiltin_va_arg
| Tbuiltin_va_list
| Textension
| Ttypeof
| T__restrict
-- CUDA
| TCUDAmutable
| TCUDA3lt
| TCUDA3gt
| TCUDAdevice
| TCUDAglobal
| TCUDAhost
| TCUDAconstant
| TCUDAshared
| TCUDArestrict
| TCUDAnoinline
-- OpenCL
| TCLprivate
| TCLlocal
| TCLglobal
| TCLconstant
| TCLreadonly
| TCLwriteonly
| TCLkernel
-- Clang (currently active is Objective-C is active)
| T__block
-- Objective-C
| TObjCnamed String
| TObjCat
| TObjCautoreleasepool
| TObjCcatch
| TObjCclass
| TObjCcompatibility_alias
| TObjCdynamic
| TObjCencode
| TObjCend
| TObjCfinally
| TObjCimplementation
| TObjCinterface
| TObjCNO
| TObjCprivate
| TObjCoptional
| TObjCpublic
| TObjCproperty
| TObjCprotected
| TObjCprotocol
| TObjCpackage
| TObjCrequired
| TObjCselector
| TObjCsynchronized
| TObjCsynthesize
| TObjCthrow
| TObjCtry
| TObjCYES
| TObjC__weak
| TObjC__strong
| TObjC__unsafe_unretained
| Tanti_objc_ifdecl String
| Tanti_objc_ifdecls String
| Tanti_objc_prop String
| Tanti_objc_props String
| Tanti_objc_prop_attr String
| Tanti_objc_prop_attrs String
| Tanti_objc_dicts String
| Tanti_objc_param String
| Tanti_objc_params String
| Tanti_objc_method_proto String
| Tanti_objc_method_def String
| Tanti_objc_method_defs String
| Tanti_objc_recv String
| Tanti_objc_arg String
| Tanti_objc_args String
deriving (Ord, Eq)
instance Pretty Token where
ppr = text . show
instance Show Token where
show Teof = "EOF"
show (Tpragma s) = "#pragma " ++ s
show (Tcomment s) = s
show (TintConst (s, _, _)) = s
show (TlongIntConst (s, _, _)) = s
show (TlongLongIntConst (s, _, _)) = s
show (TfloatConst (s, _)) = s
show (TdoubleConst (s, _)) = s
show (TlongDoubleConst (s, _)) = s
show (TcharConst (s, _)) = s
show (TstringConst (s, _)) = s
show (Tidentifier s) = s
show (Tnamed s) = s
show (Tanti_id s) = showAnti "id" s
show (Tanti_const s) = showAnti "const" s
show (Tanti_int s) = showAnti "int" s
show (Tanti_uint s) = showAnti "uint" s
show (Tanti_lint s) = showAnti "lint" s
show (Tanti_ulint s) = showAnti "ulint" s
show (Tanti_llint s) = showAnti "llint" s
show (Tanti_ullint s) = showAnti "ullint" s
show (Tanti_float s) = showAnti "float" s
show (Tanti_double s) = showAnti "double" s
show (Tanti_long_double s) = showAnti "longdouble" s
show (Tanti_char s) = showAnti "char" s
show (Tanti_string s) = showAnti "string" s
show (Tanti_exp s) = showAnti "exp" s
show (Tanti_func s) = showAnti "func" s
show (Tanti_args s) = showAnti "args" s
show (Tanti_decl s) = showAnti "decl" s
show (Tanti_decls s) = showAnti "decls" s
show (Tanti_sdecl s) = showAnti "sdecl" s
show (Tanti_sdecls s) = showAnti "sdecls" s
show (Tanti_enum s) = showAnti "enum" s
show (Tanti_enums s) = showAnti "enums" s
show (Tanti_esc s) = showAnti "esc" s
show (Tanti_escstm s) = showAnti "escstm" s
show (Tanti_edecl s) = showAnti "edecl" s
show (Tanti_edecls s) = showAnti "edecls" s
show (Tanti_item s) = showAnti "item" s
show (Tanti_items s) = showAnti "items" s
show (Tanti_stm s) = showAnti "stm" s
show (Tanti_stms s) = showAnti "stms" s
show (Tanti_type_quals s) = showAnti "tyquals" s
show (Tanti_type_qual s) = showAnti "tyqual" s
show (Tanti_type s) = showAnti "ty" s
show (Tanti_spec s) = showAnti "spec" s
show (Tanti_param s) = showAnti "param" s
show (Tanti_params s) = showAnti "params" s
show (Tanti_pragma s) = showAnti "pragma" s
show (Tanti_comment s) = showAnti "comment" s
show (Tanti_init s) = showAnti "init" s
show (Tanti_inits s) = showAnti "inits" s
show (Tanti_attr s) = showAnti "attr" s
show (Tanti_attrs s) = showAnti "attrs" s
--
-- Objective C
--
show (TObjCnamed s) = s
show (Tanti_objc_ifdecl s) = showAnti "ifdecl" s
show (Tanti_objc_ifdecls s) = showAnti "ifdecls" s
show (Tanti_objc_prop s) = showAnti "prop" s
show (Tanti_objc_props s) = showAnti "props" s
show (Tanti_objc_prop_attr s) = showAnti "propattr" s
show (Tanti_objc_prop_attrs s) = showAnti "propattrs" s
show (Tanti_objc_dicts s) = showAnti "dictelems" s
show (Tanti_objc_param s) = showAnti "methparam" s
show (Tanti_objc_params s) = showAnti "methparams" s
show (Tanti_objc_method_proto s) = showAnti "methproto" s
show (Tanti_objc_method_def s) = showAnti "methdef" s
show (Tanti_objc_method_defs s) = showAnti "methdefs" s
show (Tanti_objc_recv s) = showAnti "recv" s
show (Tanti_objc_arg s) = showAnti "kwarg" s
show (Tanti_objc_args s) = showAnti "kwargs" s
show t = fromMaybe (error "language-c-quote: internal error: unknown token")
(lookup t tokenStrings)
showAnti :: String -> String -> String
showAnti anti s =
"$" ++ anti ++ ":" ++
if isIdentifier s then s else "(" ++ s ++ ")"
where
isIdentifier :: String -> Bool
isIdentifier [] = False
isIdentifier ('_':cs) = all isIdChar cs
isIdentifier (c:cs) = isLower c && all isIdChar cs
isIdChar :: Char -> Bool
isIdChar '_' = True
isIdChar c = isAlphaNum c
tokenStrings :: [(Token, String)]
tokenStrings = [(Tlparen, "("),
(Trparen, ")"),
(Tlbrack, "["),
(Trbrack, "]"),
(Tlbrace, "{"),
(Trbrace, "}"),
(Tcomma, ","),
(Tsemi, ";"),
(Tcolon, ":"),
(Tquestion, "?"),
(Tdot, "."),
(Tarrow, "->"),
(Tellipses, "..."),
(Tplus, "+"),
(Tminus, "-"),
(Tstar, "*"),
(Tdiv, "/"),
(Tmod, "%"),
(Tnot, "~"),
(Tand, "&"),
(Tor, "|"),
(Txor, "^"),
(Tlsh, "<<"),
(Trsh, ">>"),
(Tinc, "++"),
(Tdec, "--"),
(Tlnot, "!"),
(Tland, "&&"),
(Tlor, "||"),
(Teq, "=="),
(Tne, "!="),
(Tlt, "<"),
(Tgt, ">"),
(Tle, "<="),
(Tge, ">="),
(Tassign, "="),
(Tadd_assign, "+="),
(Tsub_assign, "-="),
(Tmul_assign, "*="),
(Tdiv_assign, "/="),
(Tmod_assign, "%="),
(Tlsh_assign, "<<="),
(Trsh_assign, ">>="),
(Tand_assign, "&="),
(Tor_assign, "|="),
(Txor_assign, "^="),
--
-- Keywords
--
(Tauto, "auto"),
(Tbreak, "break"),
(Tcase, "case"),
(Tchar, "char"),
(Tconst, "const"),
(Tcontinue, "continue"),
(Tdefault, "default"),
(Tdo, "do"),
(Tdouble, "double"),
(Telse, "else"),
(Tenum, "enum"),
(Textern, "extern"),
(Tfloat, "float"),
(Tfor, "for"),
(Tgoto, "goto"),
(Tif, "if"),
(Tint, "int"),
(Tlong, "long"),
(Tregister, "register"),
(Treturn, "return"),
(Tshort, "short"),
(Tsigned, "signed"),
(Tsizeof, "sizeof"),
(Tstatic, "static"),
(Tstruct, "struct"),
(Tswitch, "switch"),
(Ttypedef, "typedef"),
(Tunion, "union"),
(Tunsigned, "unsigned"),
(Tvoid, "void"),
(Tvolatile, "volatile"),
(Twhile, "while"),
(Ttypename, "typename"),
--
-- C99 extensions
--
(TBool, "_Bool"),
(TComplex, "_TComplex"),
(TImaginary, "_TImaginary"),
(Tinline, "inline"),
(Trestrict, "restrict"),
--
-- GCC extensions
--
(Tasm, "asm"),
(Tattribute, "__attribute__"),
(Tbuiltin_va_arg, "__builtin_va_arg"),
(Tbuiltin_va_list, "__builtin_va_list"),
(Textension, "__extension__"),
(Ttypeof, "typeof"),
(T__restrict, "__restrict"),
--
-- Clang extensions
--
(T__block , "__block"),
--
-- Objective-C extensions
--
(TObjCat , "@"),
(TObjCautoreleasepool , "autoreleasepool"),
(TObjCcatch , "catch"),
(TObjCclass , "class"),
(TObjCcompatibility_alias , "compatibility_alias"),
(TObjCdynamic , "dynamic"),
(TObjCencode , "encode"),
(TObjCend , "end"),
(TObjCfinally , "finally"),
(TObjCimplementation , "implementation"),
(TObjCinterface , "interface"),
(TObjCNO , "NO"),
(TObjCoptional , "optional"),
(TObjCprivate , "private"),
(TObjCpublic , "public"),
(TObjCproperty , "property"),
(TObjCprotected , "protected"),
(TObjCprotocol , "protocol"),
(TObjCpackage , "package"),
(TObjCrequired , "required"),
(TObjCselector , "selector"),
(TObjCsynchronized , "synchronized"),
(TObjCsynthesize , "synthesize"),
(TObjCthrow , "throw"),
(TObjCtry , "try"),
(TObjCYES , "YES"),
(TObjC__weak , "__weak"),
(TObjC__strong , "__strong"),
(TObjC__unsafe_unretained , "__unsafe_unretained"),
--
-- CUDA extensions
--
(TCUDAmutable, "mutable"),
(TCUDAdevice, "__device__"),
(TCUDAglobal, "__global__"),
(TCUDAhost, "__host__"),
(TCUDAconstant, "__constant__"),
(TCUDAshared, "__shared__"),
(TCUDArestrict, "__restrict__"),
(TCUDAnoinline, "__noinline__"),
--
-- OpenCL extensions
--
(TCLprivate, "private"), -- must be without '__' prefix for Objective-C
(TCLlocal, "__local"),
(TCLglobal, "__global"),
(TCLconstant, "__constant"),
(TCLreadonly, "read_only"),
(TCLwriteonly, "write_only"),
(TCLkernel, "__kernel")
]
keywords :: [(String, Token, Maybe [Extensions])]
keywords = [("auto", Tauto, Nothing),
("break", Tbreak, Nothing),
("case", Tcase, Nothing),
("char", Tchar, Nothing),
("const", Tconst, Nothing),
("continue", Tcontinue, Nothing),
("default", Tdefault, Nothing),
("do", Tdo, Nothing),
("double", Tdouble, Nothing),
("else", Telse, Nothing),
("enum", Tenum, Nothing),
("extern", Textern, Nothing),
("float", Tfloat, Nothing),
("for", Tfor, Nothing),
("goto", Tgoto, Nothing),
("if", Tif, Nothing),
("int", Tint, Nothing),
("long", Tlong, Nothing),
("register", Tregister, Nothing),
("return", Treturn, Nothing),
("short", Tshort, Nothing),
("signed", Tsigned, Nothing),
("sizeof", Tsizeof, Nothing),
("static", Tstatic, Nothing),
("struct", Tstruct, Nothing),
("switch", Tswitch, Nothing),
("typedef", Ttypedef, Nothing),
("union", Tunion, Nothing),
("unsigned", Tunsigned, Nothing),
("void", Tvoid, Nothing),
("volatile", Tvolatile, Nothing),
("while", Twhile, Nothing),
--
-- C99
--
("_Bool", TBool, Nothing),
("_Complex", TComplex, Nothing),
("_Imaginary", TImaginary, Nothing),
("inline", Tinline, Nothing),
("restrict", Trestrict, Nothing),
--
-- GCC
--
("asm", Tasm, Just [Gcc]),
("__asm", Tasm, Just [Gcc]),
("__asm__", Tasm, Just [Gcc]),
("__attribute__", Tattribute, Just [Gcc]),
("__builtin_va_arg", Tbuiltin_va_arg, Just [Gcc]),
("__builtin_va_list", Tbuiltin_va_list, Just [Gcc]),
("__const", Tconst, Just [Gcc]),
("__const__", Tconst, Just [Gcc]),
("__inline", Tinline, Just [Gcc]),
("__inline__", Tinline, Just [Gcc]),
("__restrict", T__restrict, Just [Gcc]),
("__restrict__", T__restrict, Just [Gcc]),
("typeof", Ttypeof, Just [Gcc]),
("__typeof", Ttypeof, Just [Gcc]),
("__typeof__", Ttypeof, Just [Gcc]),
("__volatile", Tvolatile, Just [Gcc]),
("__volatile__", Tvolatile, Just [Gcc]),
--
-- Clang blocks
--
("__block", T__block, Just [Blocks, ObjC]),
--
-- Objective-C
--
("autoreleasepool", TObjCautoreleasepool, Just [ObjC]),
("catch", TObjCcatch, Just [ObjC]),
("class", TObjCclass, Just [ObjC]),
("compatibility_alias", TObjCcompatibility_alias, Just [ObjC]),
("dynamic", TObjCdynamic, Just [ObjC]),
("encode", TObjCencode, Just [ObjC]),
("end", TObjCend, Just [ObjC]),
("finally", TObjCfinally, Just [ObjC]),
("implementation", TObjCimplementation, Just [ObjC]),
("interface", TObjCinterface, Just [ObjC]),
("NO", TObjCNO, Just [ObjC]),
("optional", TObjCoptional, Just [ObjC]),
("public", TObjCpublic, Just [ObjC]),
("property", TObjCproperty, Just [ObjC]),
("protected", TObjCprotected, Just [ObjC]),
("package", TObjCpackage, Just [ObjC]),
("protocol", TObjCprotocol, Just [ObjC]),
("required", TObjCrequired, Just [ObjC]),
("selector", TObjCselector, Just [ObjC]),
("synchronized", TObjCsynchronized, Just [ObjC]),
("synthesize", TObjCsynthesize, Just [ObjC]),
("throw", TObjCthrow, Just [ObjC]),
("try", TObjCtry, Just [ObjC]),
("YES", TObjCYES, Just [ObjC]),
("__weak", TObjC__weak, Just [ObjC]),
("__strong", TObjC__strong, Just [ObjC]),
("__unsafe_unretained", TObjC__unsafe_unretained, Just [ObjC]),
--
-- CUDA
--
("mutable", TCUDAmutable, Just [CUDA]),
("__device__", TCUDAdevice, Just [CUDA]),
("__global__", TCUDAglobal, Just [CUDA]),
("__host__", TCUDAhost, Just [CUDA]),
("__constant__", TCUDAconstant, Just [CUDA]),
("__shared__", TCUDAshared, Just [CUDA]),
("__restrict__", TCUDArestrict, Just [CUDA]),
("__noinline__", TCUDAnoinline, Just [CUDA]),
--
-- OpenCL
--
("private", TCLprivate, Just [OpenCL, ObjC]), -- see Lexer.identifier for 'TObjCprivate'
("__private", TCLprivate, Just [OpenCL]),
("local", TCLlocal, Just [OpenCL]),
("__local", TCLlocal, Just [OpenCL]),
("global", TCLglobal, Just [OpenCL]),
("__global", TCLglobal, Just [OpenCL]),
("constant", TCLconstant, Just [OpenCL]),
("__constant", TCLconstant, Just [OpenCL]),
("read_only", TCLreadonly, Just [OpenCL]),
("__read_only", TCLreadonly, Just [OpenCL]),
("write_only", TCLwriteonly, Just [OpenCL]),
("__write_only", TCLwriteonly, Just [OpenCL]),
("kernel", TCLkernel, Just [OpenCL]),
("__kernel", TCLkernel, Just [OpenCL])
]
type ExtensionsInt = Word32
keywordMap :: Map.Map String (Token, Maybe ExtensionsInt)
keywordMap = Map.fromList (map f keywords)
where
f :: (String, Token, Maybe [Extensions])
-> (String, (Token, Maybe ExtensionsInt))
f (s, t, Nothing) = (s, (t, Nothing))
f (s, t, Just exts) = (s, (t, Just i))
where
i = foldl' setBit 0 (map fromEnum exts)
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