1*38fd1498Szrj /* Definitions for CPP library. 2*38fd1498Szrj Copyright (C) 1995-2018 Free Software Foundation, Inc. 3*38fd1498Szrj Written by Per Bothner, 1994-95. 4*38fd1498Szrj 5*38fd1498Szrj This program is free software; you can redistribute it and/or modify it 6*38fd1498Szrj under the terms of the GNU General Public License as published by the 7*38fd1498Szrj Free Software Foundation; either version 3, or (at your option) any 8*38fd1498Szrj later version. 9*38fd1498Szrj 10*38fd1498Szrj This program is distributed in the hope that it will be useful, 11*38fd1498Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of 12*38fd1498Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13*38fd1498Szrj GNU General Public License for more details. 14*38fd1498Szrj 15*38fd1498Szrj You should have received a copy of the GNU General Public License 16*38fd1498Szrj along with this program; see the file COPYING3. If not see 17*38fd1498Szrj <http://www.gnu.org/licenses/>. 18*38fd1498Szrj 19*38fd1498Szrj In other words, you are welcome to use, share and improve this program. 20*38fd1498Szrj You are forbidden to forbid anyone else to use, share and improve 21*38fd1498Szrj what you give them. Help stamp out software-hoarding! */ 22*38fd1498Szrj #ifndef LIBCPP_CPPLIB_H 23*38fd1498Szrj #define LIBCPP_CPPLIB_H 24*38fd1498Szrj 25*38fd1498Szrj #include <sys/types.h> 26*38fd1498Szrj #include "symtab.h" 27*38fd1498Szrj #include "line-map.h" 28*38fd1498Szrj 29*38fd1498Szrj typedef struct cpp_reader cpp_reader; 30*38fd1498Szrj typedef struct cpp_buffer cpp_buffer; 31*38fd1498Szrj typedef struct cpp_options cpp_options; 32*38fd1498Szrj typedef struct cpp_token cpp_token; 33*38fd1498Szrj typedef struct cpp_string cpp_string; 34*38fd1498Szrj typedef struct cpp_hashnode cpp_hashnode; 35*38fd1498Szrj typedef struct cpp_macro cpp_macro; 36*38fd1498Szrj typedef struct cpp_callbacks cpp_callbacks; 37*38fd1498Szrj typedef struct cpp_dir cpp_dir; 38*38fd1498Szrj 39*38fd1498Szrj struct answer; 40*38fd1498Szrj struct _cpp_file; 41*38fd1498Szrj 42*38fd1498Szrj /* The first three groups, apart from '=', can appear in preprocessor 43*38fd1498Szrj expressions (+= and -= are used to indicate unary + and - resp.). 44*38fd1498Szrj This allows a lookup table to be implemented in _cpp_parse_expr. 45*38fd1498Szrj 46*38fd1498Szrj The first group, to CPP_LAST_EQ, can be immediately followed by an 47*38fd1498Szrj '='. The lexer needs operators ending in '=', like ">>=", to be in 48*38fd1498Szrj the same order as their counterparts without the '=', like ">>". 49*38fd1498Szrj 50*38fd1498Szrj See the cpp_operator table optab in expr.c if you change the order or 51*38fd1498Szrj add or remove anything in the first group. */ 52*38fd1498Szrj 53*38fd1498Szrj #define TTYPE_TABLE \ 54*38fd1498Szrj OP(EQ, "=") \ 55*38fd1498Szrj OP(NOT, "!") \ 56*38fd1498Szrj OP(GREATER, ">") /* compare */ \ 57*38fd1498Szrj OP(LESS, "<") \ 58*38fd1498Szrj OP(PLUS, "+") /* math */ \ 59*38fd1498Szrj OP(MINUS, "-") \ 60*38fd1498Szrj OP(MULT, "*") \ 61*38fd1498Szrj OP(DIV, "/") \ 62*38fd1498Szrj OP(MOD, "%") \ 63*38fd1498Szrj OP(AND, "&") /* bit ops */ \ 64*38fd1498Szrj OP(OR, "|") \ 65*38fd1498Szrj OP(XOR, "^") \ 66*38fd1498Szrj OP(RSHIFT, ">>") \ 67*38fd1498Szrj OP(LSHIFT, "<<") \ 68*38fd1498Szrj \ 69*38fd1498Szrj OP(COMPL, "~") \ 70*38fd1498Szrj OP(AND_AND, "&&") /* logical */ \ 71*38fd1498Szrj OP(OR_OR, "||") \ 72*38fd1498Szrj OP(QUERY, "?") \ 73*38fd1498Szrj OP(COLON, ":") \ 74*38fd1498Szrj OP(COMMA, ",") /* grouping */ \ 75*38fd1498Szrj OP(OPEN_PAREN, "(") \ 76*38fd1498Szrj OP(CLOSE_PAREN, ")") \ 77*38fd1498Szrj TK(EOF, NONE) \ 78*38fd1498Szrj OP(EQ_EQ, "==") /* compare */ \ 79*38fd1498Szrj OP(NOT_EQ, "!=") \ 80*38fd1498Szrj OP(GREATER_EQ, ">=") \ 81*38fd1498Szrj OP(LESS_EQ, "<=") \ 82*38fd1498Szrj \ 83*38fd1498Szrj /* These two are unary + / - in preprocessor expressions. */ \ 84*38fd1498Szrj OP(PLUS_EQ, "+=") /* math */ \ 85*38fd1498Szrj OP(MINUS_EQ, "-=") \ 86*38fd1498Szrj \ 87*38fd1498Szrj OP(MULT_EQ, "*=") \ 88*38fd1498Szrj OP(DIV_EQ, "/=") \ 89*38fd1498Szrj OP(MOD_EQ, "%=") \ 90*38fd1498Szrj OP(AND_EQ, "&=") /* bit ops */ \ 91*38fd1498Szrj OP(OR_EQ, "|=") \ 92*38fd1498Szrj OP(XOR_EQ, "^=") \ 93*38fd1498Szrj OP(RSHIFT_EQ, ">>=") \ 94*38fd1498Szrj OP(LSHIFT_EQ, "<<=") \ 95*38fd1498Szrj /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \ 96*38fd1498Szrj OP(HASH, "#") /* digraphs */ \ 97*38fd1498Szrj OP(PASTE, "##") \ 98*38fd1498Szrj OP(OPEN_SQUARE, "[") \ 99*38fd1498Szrj OP(CLOSE_SQUARE, "]") \ 100*38fd1498Szrj OP(OPEN_BRACE, "{") \ 101*38fd1498Szrj OP(CLOSE_BRACE, "}") \ 102*38fd1498Szrj /* The remainder of the punctuation. Order is not significant. */ \ 103*38fd1498Szrj OP(SEMICOLON, ";") /* structure */ \ 104*38fd1498Szrj OP(ELLIPSIS, "...") \ 105*38fd1498Szrj OP(PLUS_PLUS, "++") /* increment */ \ 106*38fd1498Szrj OP(MINUS_MINUS, "--") \ 107*38fd1498Szrj OP(DEREF, "->") /* accessors */ \ 108*38fd1498Szrj OP(DOT, ".") \ 109*38fd1498Szrj OP(SCOPE, "::") \ 110*38fd1498Szrj OP(DEREF_STAR, "->*") \ 111*38fd1498Szrj OP(DOT_STAR, ".*") \ 112*38fd1498Szrj OP(ATSIGN, "@") /* used in Objective-C */ \ 113*38fd1498Szrj \ 114*38fd1498Szrj TK(NAME, IDENT) /* word */ \ 115*38fd1498Szrj TK(AT_NAME, IDENT) /* @word - Objective-C */ \ 116*38fd1498Szrj TK(NUMBER, LITERAL) /* 34_be+ta */ \ 117*38fd1498Szrj \ 118*38fd1498Szrj TK(CHAR, LITERAL) /* 'char' */ \ 119*38fd1498Szrj TK(WCHAR, LITERAL) /* L'char' */ \ 120*38fd1498Szrj TK(CHAR16, LITERAL) /* u'char' */ \ 121*38fd1498Szrj TK(CHAR32, LITERAL) /* U'char' */ \ 122*38fd1498Szrj TK(UTF8CHAR, LITERAL) /* u8'char' */ \ 123*38fd1498Szrj TK(OTHER, LITERAL) /* stray punctuation */ \ 124*38fd1498Szrj \ 125*38fd1498Szrj TK(STRING, LITERAL) /* "string" */ \ 126*38fd1498Szrj TK(WSTRING, LITERAL) /* L"string" */ \ 127*38fd1498Szrj TK(STRING16, LITERAL) /* u"string" */ \ 128*38fd1498Szrj TK(STRING32, LITERAL) /* U"string" */ \ 129*38fd1498Szrj TK(UTF8STRING, LITERAL) /* u8"string" */ \ 130*38fd1498Szrj TK(OBJC_STRING, LITERAL) /* @"string" - Objective-C */ \ 131*38fd1498Szrj TK(HEADER_NAME, LITERAL) /* <stdio.h> in #include */ \ 132*38fd1498Szrj \ 133*38fd1498Szrj TK(CHAR_USERDEF, LITERAL) /* 'char'_suffix - C++-0x */ \ 134*38fd1498Szrj TK(WCHAR_USERDEF, LITERAL) /* L'char'_suffix - C++-0x */ \ 135*38fd1498Szrj TK(CHAR16_USERDEF, LITERAL) /* u'char'_suffix - C++-0x */ \ 136*38fd1498Szrj TK(CHAR32_USERDEF, LITERAL) /* U'char'_suffix - C++-0x */ \ 137*38fd1498Szrj TK(UTF8CHAR_USERDEF, LITERAL) /* u8'char'_suffix - C++-0x */ \ 138*38fd1498Szrj TK(STRING_USERDEF, LITERAL) /* "string"_suffix - C++-0x */ \ 139*38fd1498Szrj TK(WSTRING_USERDEF, LITERAL) /* L"string"_suffix - C++-0x */ \ 140*38fd1498Szrj TK(STRING16_USERDEF, LITERAL) /* u"string"_suffix - C++-0x */ \ 141*38fd1498Szrj TK(STRING32_USERDEF, LITERAL) /* U"string"_suffix - C++-0x */ \ 142*38fd1498Szrj TK(UTF8STRING_USERDEF,LITERAL) /* u8"string"_suffix - C++-0x */ \ 143*38fd1498Szrj \ 144*38fd1498Szrj TK(COMMENT, LITERAL) /* Only if output comments. */ \ 145*38fd1498Szrj /* SPELL_LITERAL happens to DTRT. */ \ 146*38fd1498Szrj TK(MACRO_ARG, NONE) /* Macro argument. */ \ 147*38fd1498Szrj TK(PRAGMA, NONE) /* Only for deferred pragmas. */ \ 148*38fd1498Szrj TK(PRAGMA_EOL, NONE) /* End-of-line for deferred pragmas. */ \ 149*38fd1498Szrj TK(PADDING, NONE) /* Whitespace for -E. */ 150*38fd1498Szrj 151*38fd1498Szrj #define OP(e, s) CPP_ ## e, 152*38fd1498Szrj #define TK(e, s) CPP_ ## e, 153*38fd1498Szrj enum cpp_ttype 154*38fd1498Szrj { 155*38fd1498Szrj TTYPE_TABLE 156*38fd1498Szrj N_TTYPES, 157*38fd1498Szrj 158*38fd1498Szrj /* A token type for keywords, as opposed to ordinary identifiers. */ 159*38fd1498Szrj CPP_KEYWORD, 160*38fd1498Szrj 161*38fd1498Szrj /* Positions in the table. */ 162*38fd1498Szrj CPP_LAST_EQ = CPP_LSHIFT, 163*38fd1498Szrj CPP_FIRST_DIGRAPH = CPP_HASH, 164*38fd1498Szrj CPP_LAST_PUNCTUATOR= CPP_ATSIGN, 165*38fd1498Szrj CPP_LAST_CPP_OP = CPP_LESS_EQ 166*38fd1498Szrj }; 167*38fd1498Szrj #undef OP 168*38fd1498Szrj #undef TK 169*38fd1498Szrj 170*38fd1498Szrj /* C language kind, used when calling cpp_create_reader. */ 171*38fd1498Szrj enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC11, CLK_GNUC17, 172*38fd1498Szrj CLK_STDC89, CLK_STDC94, CLK_STDC99, CLK_STDC11, CLK_STDC17, 173*38fd1498Szrj CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX11, CLK_CXX11, 174*38fd1498Szrj CLK_GNUCXX14, CLK_CXX14, CLK_GNUCXX17, CLK_CXX17, 175*38fd1498Szrj CLK_GNUCXX2A, CLK_CXX2A, CLK_ASM}; 176*38fd1498Szrj 177*38fd1498Szrj /* Payload of a NUMBER, STRING, CHAR or COMMENT token. */ 178*38fd1498Szrj struct GTY(()) cpp_string { 179*38fd1498Szrj unsigned int len; 180*38fd1498Szrj const unsigned char *text; 181*38fd1498Szrj }; 182*38fd1498Szrj 183*38fd1498Szrj /* Flags for the cpp_token structure. */ 184*38fd1498Szrj #define PREV_WHITE (1 << 0) /* If whitespace before this token. */ 185*38fd1498Szrj #define DIGRAPH (1 << 1) /* If it was a digraph. */ 186*38fd1498Szrj #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */ 187*38fd1498Szrj #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */ 188*38fd1498Szrj #define NAMED_OP (1 << 4) /* C++ named operators. */ 189*38fd1498Szrj #define PREV_FALLTHROUGH (1 << 5) /* On a token preceeded by FALLTHROUGH 190*38fd1498Szrj comment. */ 191*38fd1498Szrj #define BOL (1 << 6) /* Token at beginning of line. */ 192*38fd1498Szrj #define PURE_ZERO (1 << 7) /* Single 0 digit, used by the C++ frontend, 193*38fd1498Szrj set in c-lex.c. */ 194*38fd1498Szrj #define SP_DIGRAPH (1 << 8) /* # or ## token was a digraph. */ 195*38fd1498Szrj #define SP_PREV_WHITE (1 << 9) /* If whitespace before a ## 196*38fd1498Szrj operator, or before this token 197*38fd1498Szrj after a # operator. */ 198*38fd1498Szrj #define NO_EXPAND (1 << 10) /* Do not macro-expand this token. */ 199*38fd1498Szrj 200*38fd1498Szrj /* Specify which field, if any, of the cpp_token union is used. */ 201*38fd1498Szrj 202*38fd1498Szrj enum cpp_token_fld_kind { 203*38fd1498Szrj CPP_TOKEN_FLD_NODE, 204*38fd1498Szrj CPP_TOKEN_FLD_SOURCE, 205*38fd1498Szrj CPP_TOKEN_FLD_STR, 206*38fd1498Szrj CPP_TOKEN_FLD_ARG_NO, 207*38fd1498Szrj CPP_TOKEN_FLD_TOKEN_NO, 208*38fd1498Szrj CPP_TOKEN_FLD_PRAGMA, 209*38fd1498Szrj CPP_TOKEN_FLD_NONE 210*38fd1498Szrj }; 211*38fd1498Szrj 212*38fd1498Szrj /* A macro argument in the cpp_token union. */ 213*38fd1498Szrj struct GTY(()) cpp_macro_arg { 214*38fd1498Szrj /* Argument number. */ 215*38fd1498Szrj unsigned int arg_no; 216*38fd1498Szrj /* The original spelling of the macro argument token. */ 217*38fd1498Szrj cpp_hashnode * 218*38fd1498Szrj GTY ((nested_ptr (union tree_node, 219*38fd1498Szrj "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", 220*38fd1498Szrj "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) 221*38fd1498Szrj spelling; 222*38fd1498Szrj }; 223*38fd1498Szrj 224*38fd1498Szrj /* An identifier in the cpp_token union. */ 225*38fd1498Szrj struct GTY(()) cpp_identifier { 226*38fd1498Szrj /* The canonical (UTF-8) spelling of the identifier. */ 227*38fd1498Szrj cpp_hashnode * 228*38fd1498Szrj GTY ((nested_ptr (union tree_node, 229*38fd1498Szrj "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", 230*38fd1498Szrj "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) 231*38fd1498Szrj node; 232*38fd1498Szrj /* The original spelling of the identifier. */ 233*38fd1498Szrj cpp_hashnode * 234*38fd1498Szrj GTY ((nested_ptr (union tree_node, 235*38fd1498Szrj "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", 236*38fd1498Szrj "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) 237*38fd1498Szrj spelling; 238*38fd1498Szrj }; 239*38fd1498Szrj 240*38fd1498Szrj /* A preprocessing token. This has been carefully packed and should 241*38fd1498Szrj occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */ 242*38fd1498Szrj struct GTY(()) cpp_token { 243*38fd1498Szrj source_location src_loc; /* Location of first char of token, 244*38fd1498Szrj together with range of full token. */ 245*38fd1498Szrj ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */ 246*38fd1498Szrj unsigned short flags; /* flags - see above */ 247*38fd1498Szrj 248*38fd1498Szrj union cpp_token_u 249*38fd1498Szrj { 250*38fd1498Szrj /* An identifier. */ 251*38fd1498Szrj struct cpp_identifier GTY ((tag ("CPP_TOKEN_FLD_NODE"))) node; 252*38fd1498Szrj 253*38fd1498Szrj /* Inherit padding from this token. */ 254*38fd1498Szrj cpp_token * GTY ((tag ("CPP_TOKEN_FLD_SOURCE"))) source; 255*38fd1498Szrj 256*38fd1498Szrj /* A string, or number. */ 257*38fd1498Szrj struct cpp_string GTY ((tag ("CPP_TOKEN_FLD_STR"))) str; 258*38fd1498Szrj 259*38fd1498Szrj /* Argument no. (and original spelling) for a CPP_MACRO_ARG. */ 260*38fd1498Szrj struct cpp_macro_arg GTY ((tag ("CPP_TOKEN_FLD_ARG_NO"))) macro_arg; 261*38fd1498Szrj 262*38fd1498Szrj /* Original token no. for a CPP_PASTE (from a sequence of 263*38fd1498Szrj consecutive paste tokens in a macro expansion). */ 264*38fd1498Szrj unsigned int GTY ((tag ("CPP_TOKEN_FLD_TOKEN_NO"))) token_no; 265*38fd1498Szrj 266*38fd1498Szrj /* Caller-supplied identifier for a CPP_PRAGMA. */ 267*38fd1498Szrj unsigned int GTY ((tag ("CPP_TOKEN_FLD_PRAGMA"))) pragma; 268*38fd1498Szrj } GTY ((desc ("cpp_token_val_index (&%1)"))) val; 269*38fd1498Szrj }; 270*38fd1498Szrj 271*38fd1498Szrj /* Say which field is in use. */ 272*38fd1498Szrj extern enum cpp_token_fld_kind cpp_token_val_index (const cpp_token *tok); 273*38fd1498Szrj 274*38fd1498Szrj /* A type wide enough to hold any multibyte source character. 275*38fd1498Szrj cpplib's character constant interpreter requires an unsigned type. 276*38fd1498Szrj Also, a typedef for the signed equivalent. 277*38fd1498Szrj The width of this type is capped at 32 bits; there do exist targets 278*38fd1498Szrj where wchar_t is 64 bits, but only in a non-default mode, and there 279*38fd1498Szrj would be no meaningful interpretation for a wchar_t value greater 280*38fd1498Szrj than 2^32 anyway -- the widest wide-character encoding around is 281*38fd1498Szrj ISO 10646, which stops at 2^31. */ 282*38fd1498Szrj #if CHAR_BIT * SIZEOF_INT >= 32 283*38fd1498Szrj # define CPPCHAR_SIGNED_T int 284*38fd1498Szrj #elif CHAR_BIT * SIZEOF_LONG >= 32 285*38fd1498Szrj # define CPPCHAR_SIGNED_T long 286*38fd1498Szrj #else 287*38fd1498Szrj # error "Cannot find a least-32-bit signed integer type" 288*38fd1498Szrj #endif 289*38fd1498Szrj typedef unsigned CPPCHAR_SIGNED_T cppchar_t; 290*38fd1498Szrj typedef CPPCHAR_SIGNED_T cppchar_signed_t; 291*38fd1498Szrj 292*38fd1498Szrj /* Style of header dependencies to generate. */ 293*38fd1498Szrj enum cpp_deps_style { DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM }; 294*38fd1498Szrj 295*38fd1498Szrj /* The possible normalization levels, from most restrictive to least. */ 296*38fd1498Szrj enum cpp_normalize_level { 297*38fd1498Szrj /* In NFKC. */ 298*38fd1498Szrj normalized_KC = 0, 299*38fd1498Szrj /* In NFC. */ 300*38fd1498Szrj normalized_C, 301*38fd1498Szrj /* In NFC, except for subsequences where being in NFC would make 302*38fd1498Szrj the identifier invalid. */ 303*38fd1498Szrj normalized_identifier_C, 304*38fd1498Szrj /* Not normalized at all. */ 305*38fd1498Szrj normalized_none 306*38fd1498Szrj }; 307*38fd1498Szrj 308*38fd1498Szrj /* This structure is nested inside struct cpp_reader, and 309*38fd1498Szrj carries all the options visible to the command line. */ 310*38fd1498Szrj struct cpp_options 311*38fd1498Szrj { 312*38fd1498Szrj /* Characters between tab stops. */ 313*38fd1498Szrj unsigned int tabstop; 314*38fd1498Szrj 315*38fd1498Szrj /* The language we're preprocessing. */ 316*38fd1498Szrj enum c_lang lang; 317*38fd1498Szrj 318*38fd1498Szrj /* Nonzero means use extra default include directories for C++. */ 319*38fd1498Szrj unsigned char cplusplus; 320*38fd1498Szrj 321*38fd1498Szrj /* Nonzero means handle cplusplus style comments. */ 322*38fd1498Szrj unsigned char cplusplus_comments; 323*38fd1498Szrj 324*38fd1498Szrj /* Nonzero means define __OBJC__, treat @ as a special token, use 325*38fd1498Szrj the OBJC[PLUS]_INCLUDE_PATH environment variable, and allow 326*38fd1498Szrj "#import". */ 327*38fd1498Szrj unsigned char objc; 328*38fd1498Szrj 329*38fd1498Szrj /* Nonzero means don't copy comments into the output file. */ 330*38fd1498Szrj unsigned char discard_comments; 331*38fd1498Szrj 332*38fd1498Szrj /* Nonzero means don't copy comments into the output file during 333*38fd1498Szrj macro expansion. */ 334*38fd1498Szrj unsigned char discard_comments_in_macro_exp; 335*38fd1498Szrj 336*38fd1498Szrj /* Nonzero means process the ISO trigraph sequences. */ 337*38fd1498Szrj unsigned char trigraphs; 338*38fd1498Szrj 339*38fd1498Szrj /* Nonzero means process the ISO digraph sequences. */ 340*38fd1498Szrj unsigned char digraphs; 341*38fd1498Szrj 342*38fd1498Szrj /* Nonzero means to allow hexadecimal floats and LL suffixes. */ 343*38fd1498Szrj unsigned char extended_numbers; 344*38fd1498Szrj 345*38fd1498Szrj /* Nonzero means process u/U prefix literals (UTF-16/32). */ 346*38fd1498Szrj unsigned char uliterals; 347*38fd1498Szrj 348*38fd1498Szrj /* Nonzero means process u8 prefixed character literals (UTF-8). */ 349*38fd1498Szrj unsigned char utf8_char_literals; 350*38fd1498Szrj 351*38fd1498Szrj /* Nonzero means process r/R raw strings. If this is set, uliterals 352*38fd1498Szrj must be set as well. */ 353*38fd1498Szrj unsigned char rliterals; 354*38fd1498Szrj 355*38fd1498Szrj /* Nonzero means print names of header files (-H). */ 356*38fd1498Szrj unsigned char print_include_names; 357*38fd1498Szrj 358*38fd1498Szrj /* Nonzero means complain about deprecated features. */ 359*38fd1498Szrj unsigned char cpp_warn_deprecated; 360*38fd1498Szrj 361*38fd1498Szrj /* Nonzero means warn if slash-star appears in a comment. */ 362*38fd1498Szrj unsigned char warn_comments; 363*38fd1498Szrj 364*38fd1498Szrj /* Nonzero means to warn about __DATA__, __TIME__ and __TIMESTAMP__ usage. */ 365*38fd1498Szrj unsigned char warn_date_time; 366*38fd1498Szrj 367*38fd1498Szrj /* Nonzero means warn if a user-supplied include directory does not 368*38fd1498Szrj exist. */ 369*38fd1498Szrj unsigned char warn_missing_include_dirs; 370*38fd1498Szrj 371*38fd1498Szrj /* Nonzero means warn if there are any trigraphs. */ 372*38fd1498Szrj unsigned char warn_trigraphs; 373*38fd1498Szrj 374*38fd1498Szrj /* Nonzero means warn about multicharacter charconsts. */ 375*38fd1498Szrj unsigned char warn_multichar; 376*38fd1498Szrj 377*38fd1498Szrj /* Nonzero means warn about various incompatibilities with 378*38fd1498Szrj traditional C. */ 379*38fd1498Szrj unsigned char cpp_warn_traditional; 380*38fd1498Szrj 381*38fd1498Szrj /* Nonzero means warn about long long numeric constants. */ 382*38fd1498Szrj unsigned char cpp_warn_long_long; 383*38fd1498Szrj 384*38fd1498Szrj /* Nonzero means warn about text after an #endif (or #else). */ 385*38fd1498Szrj unsigned char warn_endif_labels; 386*38fd1498Szrj 387*38fd1498Szrj /* Nonzero means warn about implicit sign changes owing to integer 388*38fd1498Szrj promotions. */ 389*38fd1498Szrj unsigned char warn_num_sign_change; 390*38fd1498Szrj 391*38fd1498Szrj /* Zero means don't warn about __VA_ARGS__ usage in c89 pedantic mode. 392*38fd1498Szrj Presumably the usage is protected by the appropriate #ifdef. */ 393*38fd1498Szrj unsigned char warn_variadic_macros; 394*38fd1498Szrj 395*38fd1498Szrj /* Nonzero means warn about builtin macros that are redefined or 396*38fd1498Szrj explicitly undefined. */ 397*38fd1498Szrj unsigned char warn_builtin_macro_redefined; 398*38fd1498Szrj 399*38fd1498Szrj /* Different -Wimplicit-fallthrough= levels. */ 400*38fd1498Szrj unsigned char cpp_warn_implicit_fallthrough; 401*38fd1498Szrj 402*38fd1498Szrj /* Nonzero means we should look for header.gcc files that remap file 403*38fd1498Szrj names. */ 404*38fd1498Szrj unsigned char remap; 405*38fd1498Szrj 406*38fd1498Szrj /* Zero means dollar signs are punctuation. */ 407*38fd1498Szrj unsigned char dollars_in_ident; 408*38fd1498Szrj 409*38fd1498Szrj /* Nonzero means UCNs are accepted in identifiers. */ 410*38fd1498Szrj unsigned char extended_identifiers; 411*38fd1498Szrj 412*38fd1498Szrj /* True if we should warn about dollars in identifiers or numbers 413*38fd1498Szrj for this translation unit. */ 414*38fd1498Szrj unsigned char warn_dollars; 415*38fd1498Szrj 416*38fd1498Szrj /* Nonzero means warn if undefined identifiers are evaluated in an #if. */ 417*38fd1498Szrj unsigned char warn_undef; 418*38fd1498Szrj 419*38fd1498Szrj /* Nonzero means warn if "defined" is encountered in a place other than 420*38fd1498Szrj an #if. */ 421*38fd1498Szrj unsigned char warn_expansion_to_defined; 422*38fd1498Szrj 423*38fd1498Szrj /* Nonzero means warn of unused macros from the main file. */ 424*38fd1498Szrj unsigned char warn_unused_macros; 425*38fd1498Szrj 426*38fd1498Szrj /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */ 427*38fd1498Szrj unsigned char c99; 428*38fd1498Szrj 429*38fd1498Szrj /* Nonzero if we are conforming to a specific C or C++ standard. */ 430*38fd1498Szrj unsigned char std; 431*38fd1498Szrj 432*38fd1498Szrj /* Nonzero means give all the error messages the ANSI standard requires. */ 433*38fd1498Szrj unsigned char cpp_pedantic; 434*38fd1498Szrj 435*38fd1498Szrj /* Nonzero means we're looking at already preprocessed code, so don't 436*38fd1498Szrj bother trying to do macro expansion and whatnot. */ 437*38fd1498Szrj unsigned char preprocessed; 438*38fd1498Szrj 439*38fd1498Szrj /* Nonzero means we are going to emit debugging logs during 440*38fd1498Szrj preprocessing. */ 441*38fd1498Szrj unsigned char debug; 442*38fd1498Szrj 443*38fd1498Szrj /* Nonzero means we are tracking locations of tokens involved in 444*38fd1498Szrj macro expansion. 1 Means we track the location in degraded mode 445*38fd1498Szrj where we do not track locations of tokens resulting from the 446*38fd1498Szrj expansion of arguments of function-like macro. 2 Means we do 447*38fd1498Szrj track all macro expansions. This last option is the one that 448*38fd1498Szrj consumes the highest amount of memory. */ 449*38fd1498Szrj unsigned char track_macro_expansion; 450*38fd1498Szrj 451*38fd1498Szrj /* Nonzero means handle C++ alternate operator names. */ 452*38fd1498Szrj unsigned char operator_names; 453*38fd1498Szrj 454*38fd1498Szrj /* Nonzero means warn about use of C++ alternate operator names. */ 455*38fd1498Szrj unsigned char warn_cxx_operator_names; 456*38fd1498Szrj 457*38fd1498Szrj /* True for traditional preprocessing. */ 458*38fd1498Szrj unsigned char traditional; 459*38fd1498Szrj 460*38fd1498Szrj /* Nonzero for C++ 2011 Standard user-defined literals. */ 461*38fd1498Szrj unsigned char user_literals; 462*38fd1498Szrj 463*38fd1498Szrj /* Nonzero means warn when a string or character literal is followed by a 464*38fd1498Szrj ud-suffix which does not beging with an underscore. */ 465*38fd1498Szrj unsigned char warn_literal_suffix; 466*38fd1498Szrj 467*38fd1498Szrj /* Nonzero means interpret imaginary, fixed-point, or other gnu extension 468*38fd1498Szrj literal number suffixes as user-defined literal number suffixes. */ 469*38fd1498Szrj unsigned char ext_numeric_literals; 470*38fd1498Szrj 471*38fd1498Szrj /* Nonzero means extended identifiers allow the characters specified 472*38fd1498Szrj in C11 and C++11. */ 473*38fd1498Szrj unsigned char c11_identifiers; 474*38fd1498Szrj 475*38fd1498Szrj /* Nonzero for C++ 2014 Standard binary constants. */ 476*38fd1498Szrj unsigned char binary_constants; 477*38fd1498Szrj 478*38fd1498Szrj /* Nonzero for C++ 2014 Standard digit separators. */ 479*38fd1498Szrj unsigned char digit_separators; 480*38fd1498Szrj 481*38fd1498Szrj /* Nonzero for C++2a __VA_OPT__ feature. */ 482*38fd1498Szrj unsigned char va_opt; 483*38fd1498Szrj 484*38fd1498Szrj /* Holds the name of the target (execution) character set. */ 485*38fd1498Szrj const char *narrow_charset; 486*38fd1498Szrj 487*38fd1498Szrj /* Holds the name of the target wide character set. */ 488*38fd1498Szrj const char *wide_charset; 489*38fd1498Szrj 490*38fd1498Szrj /* Holds the name of the input character set. */ 491*38fd1498Szrj const char *input_charset; 492*38fd1498Szrj 493*38fd1498Szrj /* The minimum permitted level of normalization before a warning 494*38fd1498Szrj is generated. See enum cpp_normalize_level. */ 495*38fd1498Szrj int warn_normalize; 496*38fd1498Szrj 497*38fd1498Szrj /* True to warn about precompiled header files we couldn't use. */ 498*38fd1498Szrj bool warn_invalid_pch; 499*38fd1498Szrj 500*38fd1498Szrj /* True if dependencies should be restored from a precompiled header. */ 501*38fd1498Szrj bool restore_pch_deps; 502*38fd1498Szrj 503*38fd1498Szrj /* True if warn about differences between C90 and C99. */ 504*38fd1498Szrj signed char cpp_warn_c90_c99_compat; 505*38fd1498Szrj 506*38fd1498Szrj /* True if warn about differences between C++98 and C++11. */ 507*38fd1498Szrj bool cpp_warn_cxx11_compat; 508*38fd1498Szrj 509*38fd1498Szrj /* Dependency generation. */ 510*38fd1498Szrj struct 511*38fd1498Szrj { 512*38fd1498Szrj /* Style of header dependencies to generate. */ 513*38fd1498Szrj enum cpp_deps_style style; 514*38fd1498Szrj 515*38fd1498Szrj /* Assume missing files are generated files. */ 516*38fd1498Szrj bool missing_files; 517*38fd1498Szrj 518*38fd1498Szrj /* Generate phony targets for each dependency apart from the first 519*38fd1498Szrj one. */ 520*38fd1498Szrj bool phony_targets; 521*38fd1498Szrj 522*38fd1498Szrj /* If true, no dependency is generated on the main file. */ 523*38fd1498Szrj bool ignore_main_file; 524*38fd1498Szrj 525*38fd1498Szrj /* If true, intend to use the preprocessor output (e.g., for compilation) 526*38fd1498Szrj in addition to the dependency info. */ 527*38fd1498Szrj bool need_preprocessor_output; 528*38fd1498Szrj } deps; 529*38fd1498Szrj 530*38fd1498Szrj /* Target-specific features set by the front end or client. */ 531*38fd1498Szrj 532*38fd1498Szrj /* Precision for target CPP arithmetic, target characters, target 533*38fd1498Szrj ints and target wide characters, respectively. */ 534*38fd1498Szrj size_t precision, char_precision, int_precision, wchar_precision; 535*38fd1498Szrj 536*38fd1498Szrj /* True means chars (wide chars) are unsigned. */ 537*38fd1498Szrj bool unsigned_char, unsigned_wchar; 538*38fd1498Szrj 539*38fd1498Szrj /* True if the most significant byte in a word has the lowest 540*38fd1498Szrj address in memory. */ 541*38fd1498Szrj bool bytes_big_endian; 542*38fd1498Szrj 543*38fd1498Szrj /* Nonzero means __STDC__ should have the value 0 in system headers. */ 544*38fd1498Szrj unsigned char stdc_0_in_system_headers; 545*38fd1498Szrj 546*38fd1498Szrj /* True disables tokenization outside of preprocessing directives. */ 547*38fd1498Szrj bool directives_only; 548*38fd1498Szrj 549*38fd1498Szrj /* True enables canonicalization of system header file paths. */ 550*38fd1498Szrj bool canonical_system_headers; 551*38fd1498Szrj }; 552*38fd1498Szrj 553*38fd1498Szrj /* Callback for header lookup for HEADER, which is the name of a 554*38fd1498Szrj source file. It is used as a method of last resort to find headers 555*38fd1498Szrj that are not otherwise found during the normal include processing. 556*38fd1498Szrj The return value is the malloced name of a header to try and open, 557*38fd1498Szrj if any, or NULL otherwise. This callback is called only if the 558*38fd1498Szrj header is otherwise unfound. */ 559*38fd1498Szrj typedef const char *(*missing_header_cb)(cpp_reader *, const char *header, cpp_dir **); 560*38fd1498Szrj 561*38fd1498Szrj /* Call backs to cpplib client. */ 562*38fd1498Szrj struct cpp_callbacks 563*38fd1498Szrj { 564*38fd1498Szrj /* Called when a new line of preprocessed output is started. */ 565*38fd1498Szrj void (*line_change) (cpp_reader *, const cpp_token *, int); 566*38fd1498Szrj 567*38fd1498Szrj /* Called when switching to/from a new file. 568*38fd1498Szrj The line_map is for the new file. It is NULL if there is no new file. 569*38fd1498Szrj (In C this happens when done with <built-in>+<command line> and also 570*38fd1498Szrj when done with a main file.) This can be used for resource cleanup. */ 571*38fd1498Szrj void (*file_change) (cpp_reader *, const line_map_ordinary *); 572*38fd1498Szrj 573*38fd1498Szrj void (*dir_change) (cpp_reader *, const char *); 574*38fd1498Szrj void (*include) (cpp_reader *, source_location, const unsigned char *, 575*38fd1498Szrj const char *, int, const cpp_token **); 576*38fd1498Szrj void (*define) (cpp_reader *, source_location, cpp_hashnode *); 577*38fd1498Szrj void (*undef) (cpp_reader *, source_location, cpp_hashnode *); 578*38fd1498Szrj void (*ident) (cpp_reader *, source_location, const cpp_string *); 579*38fd1498Szrj void (*def_pragma) (cpp_reader *, source_location); 580*38fd1498Szrj int (*valid_pch) (cpp_reader *, const char *, int); 581*38fd1498Szrj void (*read_pch) (cpp_reader *, const char *, int, const char *); 582*38fd1498Szrj missing_header_cb missing_header; 583*38fd1498Szrj 584*38fd1498Szrj /* Context-sensitive macro support. Returns macro (if any) that should 585*38fd1498Szrj be expanded. */ 586*38fd1498Szrj cpp_hashnode * (*macro_to_expand) (cpp_reader *, const cpp_token *); 587*38fd1498Szrj 588*38fd1498Szrj /* Called to emit a diagnostic. This callback receives the 589*38fd1498Szrj translated message. */ 590*38fd1498Szrj bool (*error) (cpp_reader *, int, int, rich_location *, 591*38fd1498Szrj const char *, va_list *) 592*38fd1498Szrj ATTRIBUTE_FPTR_PRINTF(5,0); 593*38fd1498Szrj 594*38fd1498Szrj /* Callbacks for when a macro is expanded, or tested (whether 595*38fd1498Szrj defined or not at the time) in #ifdef, #ifndef or "defined". */ 596*38fd1498Szrj void (*used_define) (cpp_reader *, source_location, cpp_hashnode *); 597*38fd1498Szrj void (*used_undef) (cpp_reader *, source_location, cpp_hashnode *); 598*38fd1498Szrj /* Called before #define and #undef or other macro definition 599*38fd1498Szrj changes are processed. */ 600*38fd1498Szrj void (*before_define) (cpp_reader *); 601*38fd1498Szrj /* Called whenever a macro is expanded or tested. 602*38fd1498Szrj Second argument is the location of the start of the current expansion. */ 603*38fd1498Szrj void (*used) (cpp_reader *, source_location, cpp_hashnode *); 604*38fd1498Szrj 605*38fd1498Szrj /* Callback to identify whether an attribute exists. */ 606*38fd1498Szrj int (*has_attribute) (cpp_reader *); 607*38fd1498Szrj 608*38fd1498Szrj /* Callback that can change a user builtin into normal macro. */ 609*38fd1498Szrj bool (*user_builtin_macro) (cpp_reader *, cpp_hashnode *); 610*38fd1498Szrj 611*38fd1498Szrj /* Callback to parse SOURCE_DATE_EPOCH from environment. */ 612*38fd1498Szrj time_t (*get_source_date_epoch) (cpp_reader *); 613*38fd1498Szrj 614*38fd1498Szrj /* Callback for providing suggestions for misspelled directives. */ 615*38fd1498Szrj const char *(*get_suggestion) (cpp_reader *, const char *, const char *const *); 616*38fd1498Szrj 617*38fd1498Szrj /* Callback for when a comment is encountered, giving the location 618*38fd1498Szrj of the opening slash, a pointer to the content (which is not 619*38fd1498Szrj necessarily 0-terminated), and the length of the content. 620*38fd1498Szrj The content contains the opening slash-star (or slash-slash), 621*38fd1498Szrj and for C-style comments contains the closing star-slash. For 622*38fd1498Szrj C++-style comments it does not include the terminating newline. */ 623*38fd1498Szrj void (*comment) (cpp_reader *, source_location, const unsigned char *, 624*38fd1498Szrj size_t); 625*38fd1498Szrj 626*38fd1498Szrj /* Callback for filename remapping in __FILE__ and __BASE_FILE__ macro 627*38fd1498Szrj expansions. */ 628*38fd1498Szrj const char *(*remap_filename) (const char*); 629*38fd1498Szrj }; 630*38fd1498Szrj 631*38fd1498Szrj #ifdef VMS 632*38fd1498Szrj #define INO_T_CPP ino_t ino[3] 633*38fd1498Szrj #else 634*38fd1498Szrj #define INO_T_CPP ino_t ino 635*38fd1498Szrj #endif 636*38fd1498Szrj 637*38fd1498Szrj /* Chain of directories to look for include files in. */ 638*38fd1498Szrj struct cpp_dir 639*38fd1498Szrj { 640*38fd1498Szrj /* NULL-terminated singly-linked list. */ 641*38fd1498Szrj struct cpp_dir *next; 642*38fd1498Szrj 643*38fd1498Szrj /* NAME of the directory, NUL-terminated. */ 644*38fd1498Szrj char *name; 645*38fd1498Szrj unsigned int len; 646*38fd1498Szrj 647*38fd1498Szrj /* One if a system header, two if a system header that has extern 648*38fd1498Szrj "C" guards for C++. */ 649*38fd1498Szrj unsigned char sysp; 650*38fd1498Szrj 651*38fd1498Szrj /* Is this a user-supplied directory? */ 652*38fd1498Szrj bool user_supplied_p; 653*38fd1498Szrj 654*38fd1498Szrj /* The canonicalized NAME as determined by lrealpath. This field 655*38fd1498Szrj is only used by hosts that lack reliable inode numbers. */ 656*38fd1498Szrj char *canonical_name; 657*38fd1498Szrj 658*38fd1498Szrj /* Mapping of file names for this directory for MS-DOS and related 659*38fd1498Szrj platforms. A NULL-terminated array of (from, to) pairs. */ 660*38fd1498Szrj const char **name_map; 661*38fd1498Szrj 662*38fd1498Szrj /* Routine to construct pathname, given the search path name and the 663*38fd1498Szrj HEADER we are trying to find, return a constructed pathname to 664*38fd1498Szrj try and open. If this is NULL, the constructed pathname is as 665*38fd1498Szrj constructed by append_file_to_dir. */ 666*38fd1498Szrj char *(*construct) (const char *header, cpp_dir *dir); 667*38fd1498Szrj 668*38fd1498Szrj /* The C front end uses these to recognize duplicated 669*38fd1498Szrj directories in the search path. */ 670*38fd1498Szrj INO_T_CPP; 671*38fd1498Szrj dev_t dev; 672*38fd1498Szrj }; 673*38fd1498Szrj 674*38fd1498Szrj /* The structure of a node in the hash table. The hash table has 675*38fd1498Szrj entries for all identifiers: either macros defined by #define 676*38fd1498Szrj commands (type NT_MACRO), assertions created with #assert 677*38fd1498Szrj (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros 678*38fd1498Szrj like __LINE__ are flagged NODE_BUILTIN. Poisoned identifiers are 679*38fd1498Szrj flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an 680*38fd1498Szrj identifier that behaves like an operator such as "xor". 681*38fd1498Szrj NODE_DIAGNOSTIC is for speed in lex_token: it indicates a 682*38fd1498Szrj diagnostic may be required for this node. Currently this only 683*38fd1498Szrj applies to __VA_ARGS__, poisoned identifiers, and -Wc++-compat 684*38fd1498Szrj warnings about NODE_OPERATOR. */ 685*38fd1498Szrj 686*38fd1498Szrj /* Hash node flags. */ 687*38fd1498Szrj #define NODE_OPERATOR (1 << 0) /* C++ named operator. */ 688*38fd1498Szrj #define NODE_POISONED (1 << 1) /* Poisoned identifier. */ 689*38fd1498Szrj #define NODE_BUILTIN (1 << 2) /* Builtin macro. */ 690*38fd1498Szrj #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */ 691*38fd1498Szrj #define NODE_WARN (1 << 4) /* Warn if redefined or undefined. */ 692*38fd1498Szrj #define NODE_DISABLED (1 << 5) /* A disabled macro. */ 693*38fd1498Szrj #define NODE_MACRO_ARG (1 << 6) /* Used during #define processing. */ 694*38fd1498Szrj #define NODE_USED (1 << 7) /* Dumped with -dU. */ 695*38fd1498Szrj #define NODE_CONDITIONAL (1 << 8) /* Conditional macro */ 696*38fd1498Szrj #define NODE_WARN_OPERATOR (1 << 9) /* Warn about C++ named operator. */ 697*38fd1498Szrj 698*38fd1498Szrj /* Different flavors of hash node. */ 699*38fd1498Szrj enum node_type 700*38fd1498Szrj { 701*38fd1498Szrj NT_VOID = 0, /* No definition yet. */ 702*38fd1498Szrj NT_MACRO, /* A macro of some form. */ 703*38fd1498Szrj NT_ASSERTION /* Predicate for #assert. */ 704*38fd1498Szrj }; 705*38fd1498Szrj 706*38fd1498Szrj /* Different flavors of builtin macro. _Pragma is an operator, but we 707*38fd1498Szrj handle it with the builtin code for efficiency reasons. */ 708*38fd1498Szrj enum cpp_builtin_type 709*38fd1498Szrj { 710*38fd1498Szrj BT_SPECLINE = 0, /* `__LINE__' */ 711*38fd1498Szrj BT_DATE, /* `__DATE__' */ 712*38fd1498Szrj BT_FILE, /* `__FILE__' */ 713*38fd1498Szrj BT_BASE_FILE, /* `__BASE_FILE__' */ 714*38fd1498Szrj BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */ 715*38fd1498Szrj BT_TIME, /* `__TIME__' */ 716*38fd1498Szrj BT_STDC, /* `__STDC__' */ 717*38fd1498Szrj BT_PRAGMA, /* `_Pragma' operator */ 718*38fd1498Szrj BT_TIMESTAMP, /* `__TIMESTAMP__' */ 719*38fd1498Szrj BT_COUNTER, /* `__COUNTER__' */ 720*38fd1498Szrj BT_HAS_ATTRIBUTE, /* `__has_attribute__(x)' */ 721*38fd1498Szrj BT_FIRST_USER, /* User defined builtin macros. */ 722*38fd1498Szrj BT_LAST_USER = BT_FIRST_USER + 63 723*38fd1498Szrj }; 724*38fd1498Szrj 725*38fd1498Szrj #define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE)) 726*38fd1498Szrj #define HT_NODE(NODE) ((ht_identifier *) (NODE)) 727*38fd1498Szrj #define NODE_LEN(NODE) HT_LEN (&(NODE)->ident) 728*38fd1498Szrj #define NODE_NAME(NODE) HT_STR (&(NODE)->ident) 729*38fd1498Szrj 730*38fd1498Szrj /* Specify which field, if any, of the union is used. */ 731*38fd1498Szrj 732*38fd1498Szrj enum { 733*38fd1498Szrj NTV_MACRO, 734*38fd1498Szrj NTV_ANSWER, 735*38fd1498Szrj NTV_BUILTIN, 736*38fd1498Szrj NTV_ARGUMENT, 737*38fd1498Szrj NTV_NONE 738*38fd1498Szrj }; 739*38fd1498Szrj 740*38fd1498Szrj #define CPP_HASHNODE_VALUE_IDX(HNODE) \ 741*38fd1498Szrj ((HNODE.flags & NODE_MACRO_ARG) ? NTV_ARGUMENT \ 742*38fd1498Szrj : HNODE.type == NT_MACRO ? ((HNODE.flags & NODE_BUILTIN) \ 743*38fd1498Szrj ? NTV_BUILTIN : NTV_MACRO) \ 744*38fd1498Szrj : HNODE.type == NT_ASSERTION ? NTV_ANSWER \ 745*38fd1498Szrj : NTV_NONE) 746*38fd1498Szrj 747*38fd1498Szrj /* The common part of an identifier node shared amongst all 3 C front 748*38fd1498Szrj ends. Also used to store CPP identifiers, which are a superset of 749*38fd1498Szrj identifiers in the grammatical sense. */ 750*38fd1498Szrj 751*38fd1498Szrj union GTY(()) _cpp_hashnode_value { 752*38fd1498Szrj /* If a macro. */ 753*38fd1498Szrj cpp_macro * GTY((tag ("NTV_MACRO"))) macro; 754*38fd1498Szrj /* Answers to an assertion. */ 755*38fd1498Szrj struct answer * GTY ((tag ("NTV_ANSWER"))) answers; 756*38fd1498Szrj /* Code for a builtin macro. */ 757*38fd1498Szrj enum cpp_builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin; 758*38fd1498Szrj /* Macro argument index. */ 759*38fd1498Szrj unsigned short GTY ((tag ("NTV_ARGUMENT"))) arg_index; 760*38fd1498Szrj }; 761*38fd1498Szrj 762*38fd1498Szrj struct GTY(()) cpp_hashnode { 763*38fd1498Szrj struct ht_identifier ident; 764*38fd1498Szrj unsigned int is_directive : 1; 765*38fd1498Szrj unsigned int directive_index : 7; /* If is_directive, 766*38fd1498Szrj then index into directive table. 767*38fd1498Szrj Otherwise, a NODE_OPERATOR. */ 768*38fd1498Szrj unsigned char rid_code; /* Rid code - for front ends. */ 769*38fd1498Szrj ENUM_BITFIELD(node_type) type : 6; /* CPP node type. */ 770*38fd1498Szrj unsigned int flags : 10; /* CPP flags. */ 771*38fd1498Szrj 772*38fd1498Szrj union _cpp_hashnode_value GTY ((desc ("CPP_HASHNODE_VALUE_IDX (%1)"))) value; 773*38fd1498Szrj }; 774*38fd1498Szrj 775*38fd1498Szrj /* A class for iterating through the source locations within a 776*38fd1498Szrj string token (before escapes are interpreted, and before 777*38fd1498Szrj concatenation). */ 778*38fd1498Szrj 779*38fd1498Szrj class cpp_string_location_reader { 780*38fd1498Szrj public: 781*38fd1498Szrj cpp_string_location_reader (source_location src_loc, 782*38fd1498Szrj line_maps *line_table); 783*38fd1498Szrj 784*38fd1498Szrj source_range get_next (); 785*38fd1498Szrj 786*38fd1498Szrj private: 787*38fd1498Szrj source_location m_loc; 788*38fd1498Szrj int m_offset_per_column; 789*38fd1498Szrj line_maps *m_line_table; 790*38fd1498Szrj }; 791*38fd1498Szrj 792*38fd1498Szrj /* A class for storing the source ranges of all of the characters within 793*38fd1498Szrj a string literal, after escapes are interpreted, and after 794*38fd1498Szrj concatenation. 795*38fd1498Szrj 796*38fd1498Szrj This is not GTY-marked, as instances are intended to be temporary. */ 797*38fd1498Szrj 798*38fd1498Szrj class cpp_substring_ranges 799*38fd1498Szrj { 800*38fd1498Szrj public: 801*38fd1498Szrj cpp_substring_ranges (); 802*38fd1498Szrj ~cpp_substring_ranges (); 803*38fd1498Szrj get_num_ranges()804*38fd1498Szrj int get_num_ranges () const { return m_num_ranges; } get_range(int idx)805*38fd1498Szrj source_range get_range (int idx) const 806*38fd1498Szrj { 807*38fd1498Szrj linemap_assert (idx < m_num_ranges); 808*38fd1498Szrj return m_ranges[idx]; 809*38fd1498Szrj } 810*38fd1498Szrj 811*38fd1498Szrj void add_range (source_range range); 812*38fd1498Szrj void add_n_ranges (int num, cpp_string_location_reader &loc_reader); 813*38fd1498Szrj 814*38fd1498Szrj private: 815*38fd1498Szrj source_range *m_ranges; 816*38fd1498Szrj int m_num_ranges; 817*38fd1498Szrj int m_alloc_ranges; 818*38fd1498Szrj }; 819*38fd1498Szrj 820*38fd1498Szrj /* Call this first to get a handle to pass to other functions. 821*38fd1498Szrj 822*38fd1498Szrj If you want cpplib to manage its own hashtable, pass in a NULL 823*38fd1498Szrj pointer. Otherwise you should pass in an initialized hash table 824*38fd1498Szrj that cpplib will share; this technique is used by the C front 825*38fd1498Szrj ends. */ 826*38fd1498Szrj extern cpp_reader *cpp_create_reader (enum c_lang, struct ht *, 827*38fd1498Szrj struct line_maps *); 828*38fd1498Szrj 829*38fd1498Szrj /* Reset the cpp_reader's line_map. This is only used after reading a 830*38fd1498Szrj PCH file. */ 831*38fd1498Szrj extern void cpp_set_line_map (cpp_reader *, struct line_maps *); 832*38fd1498Szrj 833*38fd1498Szrj /* Call this to change the selected language standard (e.g. because of 834*38fd1498Szrj command line options). */ 835*38fd1498Szrj extern void cpp_set_lang (cpp_reader *, enum c_lang); 836*38fd1498Szrj 837*38fd1498Szrj /* Set the include paths. */ 838*38fd1498Szrj extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int); 839*38fd1498Szrj 840*38fd1498Szrj /* Call these to get pointers to the options, callback, and deps 841*38fd1498Szrj structures for a given reader. These pointers are good until you 842*38fd1498Szrj call cpp_finish on that reader. You can either edit the callbacks 843*38fd1498Szrj through the pointer returned from cpp_get_callbacks, or set them 844*38fd1498Szrj with cpp_set_callbacks. */ 845*38fd1498Szrj extern cpp_options *cpp_get_options (cpp_reader *); 846*38fd1498Szrj extern cpp_callbacks *cpp_get_callbacks (cpp_reader *); 847*38fd1498Szrj extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *); 848*38fd1498Szrj extern struct deps *cpp_get_deps (cpp_reader *); 849*38fd1498Szrj 850*38fd1498Szrj /* This function reads the file, but does not start preprocessing. It 851*38fd1498Szrj returns the name of the original file; this is the same as the 852*38fd1498Szrj input file, except for preprocessed input. This will generate at 853*38fd1498Szrj least one file change callback, and possibly a line change callback 854*38fd1498Szrj too. If there was an error opening the file, it returns NULL. */ 855*38fd1498Szrj extern const char *cpp_read_main_file (cpp_reader *, const char *); 856*38fd1498Szrj 857*38fd1498Szrj /* Set up built-ins with special behavior. Use cpp_init_builtins() 858*38fd1498Szrj instead unless your know what you are doing. */ 859*38fd1498Szrj extern void cpp_init_special_builtins (cpp_reader *); 860*38fd1498Szrj 861*38fd1498Szrj /* Set up built-ins like __FILE__. */ 862*38fd1498Szrj extern void cpp_init_builtins (cpp_reader *, int); 863*38fd1498Szrj 864*38fd1498Szrj /* This is called after options have been parsed, and partially 865*38fd1498Szrj processed. */ 866*38fd1498Szrj extern void cpp_post_options (cpp_reader *); 867*38fd1498Szrj 868*38fd1498Szrj /* Set up translation to the target character set. */ 869*38fd1498Szrj extern void cpp_init_iconv (cpp_reader *); 870*38fd1498Szrj 871*38fd1498Szrj /* Call this to finish preprocessing. If you requested dependency 872*38fd1498Szrj generation, pass an open stream to write the information to, 873*38fd1498Szrj otherwise NULL. It is your responsibility to close the stream. */ 874*38fd1498Szrj extern void cpp_finish (cpp_reader *, FILE *deps_stream); 875*38fd1498Szrj 876*38fd1498Szrj /* Call this to release the handle at the end of preprocessing. Any 877*38fd1498Szrj use of the handle after this function returns is invalid. */ 878*38fd1498Szrj extern void cpp_destroy (cpp_reader *); 879*38fd1498Szrj 880*38fd1498Szrj extern unsigned int cpp_token_len (const cpp_token *); 881*38fd1498Szrj extern unsigned char *cpp_token_as_text (cpp_reader *, const cpp_token *); 882*38fd1498Szrj extern unsigned char *cpp_spell_token (cpp_reader *, const cpp_token *, 883*38fd1498Szrj unsigned char *, bool); 884*38fd1498Szrj extern void cpp_register_pragma (cpp_reader *, const char *, const char *, 885*38fd1498Szrj void (*) (cpp_reader *), bool); 886*38fd1498Szrj extern void cpp_register_deferred_pragma (cpp_reader *, const char *, 887*38fd1498Szrj const char *, unsigned, bool, bool); 888*38fd1498Szrj extern int cpp_avoid_paste (cpp_reader *, const cpp_token *, 889*38fd1498Szrj const cpp_token *); 890*38fd1498Szrj extern const cpp_token *cpp_get_token (cpp_reader *); 891*38fd1498Szrj extern const cpp_token *cpp_get_token_with_location (cpp_reader *, 892*38fd1498Szrj source_location *); 893*38fd1498Szrj extern bool cpp_fun_like_macro_p (cpp_hashnode *); 894*38fd1498Szrj extern const unsigned char *cpp_macro_definition (cpp_reader *, 895*38fd1498Szrj cpp_hashnode *); 896*38fd1498Szrj extern source_location cpp_macro_definition_location (cpp_hashnode *); 897*38fd1498Szrj extern void _cpp_backup_tokens (cpp_reader *, unsigned int); 898*38fd1498Szrj extern const cpp_token *cpp_peek_token (cpp_reader *, int); 899*38fd1498Szrj 900*38fd1498Szrj /* Evaluate a CPP_*CHAR* token. */ 901*38fd1498Szrj extern cppchar_t cpp_interpret_charconst (cpp_reader *, const cpp_token *, 902*38fd1498Szrj unsigned int *, int *); 903*38fd1498Szrj /* Evaluate a vector of CPP_*STRING* tokens. */ 904*38fd1498Szrj extern bool cpp_interpret_string (cpp_reader *, 905*38fd1498Szrj const cpp_string *, size_t, 906*38fd1498Szrj cpp_string *, enum cpp_ttype); 907*38fd1498Szrj extern const char *cpp_interpret_string_ranges (cpp_reader *pfile, 908*38fd1498Szrj const cpp_string *from, 909*38fd1498Szrj cpp_string_location_reader *, 910*38fd1498Szrj size_t count, 911*38fd1498Szrj cpp_substring_ranges *out, 912*38fd1498Szrj enum cpp_ttype type); 913*38fd1498Szrj extern bool cpp_interpret_string_notranslate (cpp_reader *, 914*38fd1498Szrj const cpp_string *, size_t, 915*38fd1498Szrj cpp_string *, enum cpp_ttype); 916*38fd1498Szrj 917*38fd1498Szrj /* Convert a host character constant to the execution character set. */ 918*38fd1498Szrj extern cppchar_t cpp_host_to_exec_charset (cpp_reader *, cppchar_t); 919*38fd1498Szrj 920*38fd1498Szrj /* Used to register macros and assertions, perhaps from the command line. 921*38fd1498Szrj The text is the same as the command line argument. */ 922*38fd1498Szrj extern void cpp_define (cpp_reader *, const char *); 923*38fd1498Szrj extern void cpp_define_formatted (cpp_reader *pfile, 924*38fd1498Szrj const char *fmt, ...) ATTRIBUTE_PRINTF_2; 925*38fd1498Szrj extern void cpp_assert (cpp_reader *, const char *); 926*38fd1498Szrj extern void cpp_undef (cpp_reader *, const char *); 927*38fd1498Szrj extern void cpp_unassert (cpp_reader *, const char *); 928*38fd1498Szrj 929*38fd1498Szrj /* Undefine all macros and assertions. */ 930*38fd1498Szrj extern void cpp_undef_all (cpp_reader *); 931*38fd1498Szrj 932*38fd1498Szrj extern cpp_buffer *cpp_push_buffer (cpp_reader *, const unsigned char *, 933*38fd1498Szrj size_t, int); 934*38fd1498Szrj extern int cpp_defined (cpp_reader *, const unsigned char *, int); 935*38fd1498Szrj 936*38fd1498Szrj /* A preprocessing number. Code assumes that any unused high bits of 937*38fd1498Szrj the double integer are set to zero. */ 938*38fd1498Szrj 939*38fd1498Szrj /* This type has to be equal to unsigned HOST_WIDE_INT, see 940*38fd1498Szrj gcc/c-family/c-lex.c. */ 941*38fd1498Szrj typedef uint64_t cpp_num_part; 942*38fd1498Szrj typedef struct cpp_num cpp_num; 943*38fd1498Szrj struct cpp_num 944*38fd1498Szrj { 945*38fd1498Szrj cpp_num_part high; 946*38fd1498Szrj cpp_num_part low; 947*38fd1498Szrj bool unsignedp; /* True if value should be treated as unsigned. */ 948*38fd1498Szrj bool overflow; /* True if the most recent calculation overflowed. */ 949*38fd1498Szrj }; 950*38fd1498Szrj 951*38fd1498Szrj /* cpplib provides two interfaces for interpretation of preprocessing 952*38fd1498Szrj numbers. 953*38fd1498Szrj 954*38fd1498Szrj cpp_classify_number categorizes numeric constants according to 955*38fd1498Szrj their field (integer, floating point, or invalid), radix (decimal, 956*38fd1498Szrj octal, hexadecimal), and type suffixes. */ 957*38fd1498Szrj 958*38fd1498Szrj #define CPP_N_CATEGORY 0x000F 959*38fd1498Szrj #define CPP_N_INVALID 0x0000 960*38fd1498Szrj #define CPP_N_INTEGER 0x0001 961*38fd1498Szrj #define CPP_N_FLOATING 0x0002 962*38fd1498Szrj 963*38fd1498Szrj #define CPP_N_WIDTH 0x00F0 964*38fd1498Szrj #define CPP_N_SMALL 0x0010 /* int, float, short _Fract/Accum */ 965*38fd1498Szrj #define CPP_N_MEDIUM 0x0020 /* long, double, long _Fract/_Accum. */ 966*38fd1498Szrj #define CPP_N_LARGE 0x0040 /* long long, long double, 967*38fd1498Szrj long long _Fract/Accum. */ 968*38fd1498Szrj 969*38fd1498Szrj #define CPP_N_WIDTH_MD 0xF0000 /* machine defined. */ 970*38fd1498Szrj #define CPP_N_MD_W 0x10000 971*38fd1498Szrj #define CPP_N_MD_Q 0x20000 972*38fd1498Szrj 973*38fd1498Szrj #define CPP_N_RADIX 0x0F00 974*38fd1498Szrj #define CPP_N_DECIMAL 0x0100 975*38fd1498Szrj #define CPP_N_HEX 0x0200 976*38fd1498Szrj #define CPP_N_OCTAL 0x0400 977*38fd1498Szrj #define CPP_N_BINARY 0x0800 978*38fd1498Szrj 979*38fd1498Szrj #define CPP_N_UNSIGNED 0x1000 /* Properties. */ 980*38fd1498Szrj #define CPP_N_IMAGINARY 0x2000 981*38fd1498Szrj #define CPP_N_DFLOAT 0x4000 982*38fd1498Szrj #define CPP_N_DEFAULT 0x8000 983*38fd1498Szrj 984*38fd1498Szrj #define CPP_N_FRACT 0x100000 /* Fract types. */ 985*38fd1498Szrj #define CPP_N_ACCUM 0x200000 /* Accum types. */ 986*38fd1498Szrj #define CPP_N_FLOATN 0x400000 /* _FloatN types. */ 987*38fd1498Szrj #define CPP_N_FLOATNX 0x800000 /* _FloatNx types. */ 988*38fd1498Szrj 989*38fd1498Szrj #define CPP_N_USERDEF 0x1000000 /* C++0x user-defined literal. */ 990*38fd1498Szrj 991*38fd1498Szrj #define CPP_N_WIDTH_FLOATN_NX 0xF0000000 /* _FloatN / _FloatNx value 992*38fd1498Szrj of N, divided by 16. */ 993*38fd1498Szrj #define CPP_FLOATN_SHIFT 24 994*38fd1498Szrj #define CPP_FLOATN_MAX 0xF0 995*38fd1498Szrj 996*38fd1498Szrj /* Classify a CPP_NUMBER token. The return value is a combination of 997*38fd1498Szrj the flags from the above sets. */ 998*38fd1498Szrj extern unsigned cpp_classify_number (cpp_reader *, const cpp_token *, 999*38fd1498Szrj const char **, source_location); 1000*38fd1498Szrj 1001*38fd1498Szrj /* Return the classification flags for a float suffix. */ 1002*38fd1498Szrj extern unsigned int cpp_interpret_float_suffix (cpp_reader *, const char *, 1003*38fd1498Szrj size_t); 1004*38fd1498Szrj 1005*38fd1498Szrj /* Return the classification flags for an int suffix. */ 1006*38fd1498Szrj extern unsigned int cpp_interpret_int_suffix (cpp_reader *, const char *, 1007*38fd1498Szrj size_t); 1008*38fd1498Szrj 1009*38fd1498Szrj /* Evaluate a token classified as category CPP_N_INTEGER. */ 1010*38fd1498Szrj extern cpp_num cpp_interpret_integer (cpp_reader *, const cpp_token *, 1011*38fd1498Szrj unsigned int); 1012*38fd1498Szrj 1013*38fd1498Szrj /* Sign extend a number, with PRECISION significant bits and all 1014*38fd1498Szrj others assumed clear, to fill out a cpp_num structure. */ 1015*38fd1498Szrj cpp_num cpp_num_sign_extend (cpp_num, size_t); 1016*38fd1498Szrj 1017*38fd1498Szrj /* Diagnostic levels. To get a diagnostic without associating a 1018*38fd1498Szrj position in the translation unit with it, use cpp_error_with_line 1019*38fd1498Szrj with a line number of zero. */ 1020*38fd1498Szrj 1021*38fd1498Szrj enum { 1022*38fd1498Szrj /* Warning, an error with -Werror. */ 1023*38fd1498Szrj CPP_DL_WARNING = 0, 1024*38fd1498Szrj /* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */ 1025*38fd1498Szrj CPP_DL_WARNING_SYSHDR, 1026*38fd1498Szrj /* Warning, an error with -pedantic-errors or -Werror. */ 1027*38fd1498Szrj CPP_DL_PEDWARN, 1028*38fd1498Szrj /* An error. */ 1029*38fd1498Szrj CPP_DL_ERROR, 1030*38fd1498Szrj /* An internal consistency check failed. Prints "internal error: ", 1031*38fd1498Szrj otherwise the same as CPP_DL_ERROR. */ 1032*38fd1498Szrj CPP_DL_ICE, 1033*38fd1498Szrj /* An informative note following a warning. */ 1034*38fd1498Szrj CPP_DL_NOTE, 1035*38fd1498Szrj /* A fatal error. */ 1036*38fd1498Szrj CPP_DL_FATAL 1037*38fd1498Szrj }; 1038*38fd1498Szrj 1039*38fd1498Szrj /* Warning reason codes. Use a reason code of zero for unclassified warnings 1040*38fd1498Szrj and errors that are not warnings. */ 1041*38fd1498Szrj enum { 1042*38fd1498Szrj CPP_W_NONE = 0, 1043*38fd1498Szrj CPP_W_DEPRECATED, 1044*38fd1498Szrj CPP_W_COMMENTS, 1045*38fd1498Szrj CPP_W_MISSING_INCLUDE_DIRS, 1046*38fd1498Szrj CPP_W_TRIGRAPHS, 1047*38fd1498Szrj CPP_W_MULTICHAR, 1048*38fd1498Szrj CPP_W_TRADITIONAL, 1049*38fd1498Szrj CPP_W_LONG_LONG, 1050*38fd1498Szrj CPP_W_ENDIF_LABELS, 1051*38fd1498Szrj CPP_W_NUM_SIGN_CHANGE, 1052*38fd1498Szrj CPP_W_VARIADIC_MACROS, 1053*38fd1498Szrj CPP_W_BUILTIN_MACRO_REDEFINED, 1054*38fd1498Szrj CPP_W_DOLLARS, 1055*38fd1498Szrj CPP_W_UNDEF, 1056*38fd1498Szrj CPP_W_UNUSED_MACROS, 1057*38fd1498Szrj CPP_W_CXX_OPERATOR_NAMES, 1058*38fd1498Szrj CPP_W_NORMALIZE, 1059*38fd1498Szrj CPP_W_INVALID_PCH, 1060*38fd1498Szrj CPP_W_WARNING_DIRECTIVE, 1061*38fd1498Szrj CPP_W_LITERAL_SUFFIX, 1062*38fd1498Szrj CPP_W_DATE_TIME, 1063*38fd1498Szrj CPP_W_PEDANTIC, 1064*38fd1498Szrj CPP_W_C90_C99_COMPAT, 1065*38fd1498Szrj CPP_W_CXX11_COMPAT, 1066*38fd1498Szrj CPP_W_EXPANSION_TO_DEFINED 1067*38fd1498Szrj }; 1068*38fd1498Szrj 1069*38fd1498Szrj /* Output a diagnostic of some kind. */ 1070*38fd1498Szrj extern bool cpp_error (cpp_reader *, int, const char *msgid, ...) 1071*38fd1498Szrj ATTRIBUTE_PRINTF_3; 1072*38fd1498Szrj extern bool cpp_warning (cpp_reader *, int, const char *msgid, ...) 1073*38fd1498Szrj ATTRIBUTE_PRINTF_3; 1074*38fd1498Szrj extern bool cpp_pedwarning (cpp_reader *, int, const char *msgid, ...) 1075*38fd1498Szrj ATTRIBUTE_PRINTF_3; 1076*38fd1498Szrj extern bool cpp_warning_syshdr (cpp_reader *, int, const char *msgid, ...) 1077*38fd1498Szrj ATTRIBUTE_PRINTF_3; 1078*38fd1498Szrj 1079*38fd1498Szrj /* Output a diagnostic with "MSGID: " preceding the 1080*38fd1498Szrj error string of errno. No location is printed. */ 1081*38fd1498Szrj extern bool cpp_errno (cpp_reader *, int, const char *msgid); 1082*38fd1498Szrj /* Similarly, but with "FILENAME: " instead of "MSGID: ", where 1083*38fd1498Szrj the filename is not localized. */ 1084*38fd1498Szrj extern bool cpp_errno_filename (cpp_reader *, int, const char *filename, 1085*38fd1498Szrj source_location loc); 1086*38fd1498Szrj 1087*38fd1498Szrj /* Same as cpp_error, except additionally specifies a position as a 1088*38fd1498Szrj (translation unit) physical line and physical column. If the line is 1089*38fd1498Szrj zero, then no location is printed. */ 1090*38fd1498Szrj extern bool cpp_error_with_line (cpp_reader *, int, source_location, 1091*38fd1498Szrj unsigned, const char *msgid, ...) 1092*38fd1498Szrj ATTRIBUTE_PRINTF_5; 1093*38fd1498Szrj extern bool cpp_warning_with_line (cpp_reader *, int, source_location, 1094*38fd1498Szrj unsigned, const char *msgid, ...) 1095*38fd1498Szrj ATTRIBUTE_PRINTF_5; 1096*38fd1498Szrj extern bool cpp_pedwarning_with_line (cpp_reader *, int, source_location, 1097*38fd1498Szrj unsigned, const char *msgid, ...) 1098*38fd1498Szrj ATTRIBUTE_PRINTF_5; 1099*38fd1498Szrj extern bool cpp_warning_with_line_syshdr (cpp_reader *, int, source_location, 1100*38fd1498Szrj unsigned, const char *msgid, ...) 1101*38fd1498Szrj ATTRIBUTE_PRINTF_5; 1102*38fd1498Szrj 1103*38fd1498Szrj extern bool cpp_error_at (cpp_reader * pfile, int level, 1104*38fd1498Szrj source_location src_loc, const char *msgid, ...) 1105*38fd1498Szrj ATTRIBUTE_PRINTF_4; 1106*38fd1498Szrj 1107*38fd1498Szrj extern bool cpp_error_at (cpp_reader * pfile, int level, 1108*38fd1498Szrj rich_location *richloc, const char *msgid, 1109*38fd1498Szrj ...) 1110*38fd1498Szrj ATTRIBUTE_PRINTF_4; 1111*38fd1498Szrj 1112*38fd1498Szrj /* In lex.c */ 1113*38fd1498Szrj extern int cpp_ideq (const cpp_token *, const char *); 1114*38fd1498Szrj extern void cpp_output_line (cpp_reader *, FILE *); 1115*38fd1498Szrj extern unsigned char *cpp_output_line_to_string (cpp_reader *, 1116*38fd1498Szrj const unsigned char *); 1117*38fd1498Szrj extern void cpp_output_token (const cpp_token *, FILE *); 1118*38fd1498Szrj extern const char *cpp_type2name (enum cpp_ttype, unsigned char flags); 1119*38fd1498Szrj /* Returns the value of an escape sequence, truncated to the correct 1120*38fd1498Szrj target precision. PSTR points to the input pointer, which is just 1121*38fd1498Szrj after the backslash. LIMIT is how much text we have. WIDE is true 1122*38fd1498Szrj if the escape sequence is part of a wide character constant or 1123*38fd1498Szrj string literal. Handles all relevant diagnostics. */ 1124*38fd1498Szrj extern cppchar_t cpp_parse_escape (cpp_reader *, const unsigned char ** pstr, 1125*38fd1498Szrj const unsigned char *limit, int wide); 1126*38fd1498Szrj 1127*38fd1498Szrj /* Structure used to hold a comment block at a given location in the 1128*38fd1498Szrj source code. */ 1129*38fd1498Szrj 1130*38fd1498Szrj typedef struct 1131*38fd1498Szrj { 1132*38fd1498Szrj /* Text of the comment including the terminators. */ 1133*38fd1498Szrj char *comment; 1134*38fd1498Szrj 1135*38fd1498Szrj /* source location for the given comment. */ 1136*38fd1498Szrj source_location sloc; 1137*38fd1498Szrj } cpp_comment; 1138*38fd1498Szrj 1139*38fd1498Szrj /* Structure holding all comments for a given cpp_reader. */ 1140*38fd1498Szrj 1141*38fd1498Szrj typedef struct 1142*38fd1498Szrj { 1143*38fd1498Szrj /* table of comment entries. */ 1144*38fd1498Szrj cpp_comment *entries; 1145*38fd1498Szrj 1146*38fd1498Szrj /* number of actual entries entered in the table. */ 1147*38fd1498Szrj int count; 1148*38fd1498Szrj 1149*38fd1498Szrj /* number of entries allocated currently. */ 1150*38fd1498Szrj int allocated; 1151*38fd1498Szrj } cpp_comment_table; 1152*38fd1498Szrj 1153*38fd1498Szrj /* Returns the table of comments encountered by the preprocessor. This 1154*38fd1498Szrj table is only populated when pfile->state.save_comments is true. */ 1155*38fd1498Szrj extern cpp_comment_table *cpp_get_comments (cpp_reader *); 1156*38fd1498Szrj 1157*38fd1498Szrj /* In hash.c */ 1158*38fd1498Szrj 1159*38fd1498Szrj /* Lookup an identifier in the hashtable. Puts the identifier in the 1160*38fd1498Szrj table if it is not already there. */ 1161*38fd1498Szrj extern cpp_hashnode *cpp_lookup (cpp_reader *, const unsigned char *, 1162*38fd1498Szrj unsigned int); 1163*38fd1498Szrj 1164*38fd1498Szrj typedef int (*cpp_cb) (cpp_reader *, cpp_hashnode *, void *); 1165*38fd1498Szrj extern void cpp_forall_identifiers (cpp_reader *, cpp_cb, void *); 1166*38fd1498Szrj 1167*38fd1498Szrj /* In macro.c */ 1168*38fd1498Szrj extern void cpp_scan_nooutput (cpp_reader *); 1169*38fd1498Szrj extern int cpp_sys_macro_p (cpp_reader *); 1170*38fd1498Szrj extern unsigned char *cpp_quote_string (unsigned char *, const unsigned char *, 1171*38fd1498Szrj unsigned int); 1172*38fd1498Szrj 1173*38fd1498Szrj /* In files.c */ 1174*38fd1498Szrj extern bool cpp_included (cpp_reader *, const char *); 1175*38fd1498Szrj extern bool cpp_included_before (cpp_reader *, const char *, source_location); 1176*38fd1498Szrj extern void cpp_make_system_header (cpp_reader *, int, int); 1177*38fd1498Szrj extern bool cpp_push_include (cpp_reader *, const char *); 1178*38fd1498Szrj extern bool cpp_push_default_include (cpp_reader *, const char *); 1179*38fd1498Szrj extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *); 1180*38fd1498Szrj extern const char *cpp_get_path (struct _cpp_file *); 1181*38fd1498Szrj extern cpp_dir *cpp_get_dir (struct _cpp_file *); 1182*38fd1498Szrj extern cpp_buffer *cpp_get_buffer (cpp_reader *); 1183*38fd1498Szrj extern struct _cpp_file *cpp_get_file (cpp_buffer *); 1184*38fd1498Szrj extern cpp_buffer *cpp_get_prev (cpp_buffer *); 1185*38fd1498Szrj extern void cpp_clear_file_cache (cpp_reader *); 1186*38fd1498Szrj 1187*38fd1498Szrj /* In pch.c */ 1188*38fd1498Szrj struct save_macro_data; 1189*38fd1498Szrj extern int cpp_save_state (cpp_reader *, FILE *); 1190*38fd1498Szrj extern int cpp_write_pch_deps (cpp_reader *, FILE *); 1191*38fd1498Szrj extern int cpp_write_pch_state (cpp_reader *, FILE *); 1192*38fd1498Szrj extern int cpp_valid_state (cpp_reader *, const char *, int); 1193*38fd1498Szrj extern void cpp_prepare_state (cpp_reader *, struct save_macro_data **); 1194*38fd1498Szrj extern int cpp_read_state (cpp_reader *, const char *, FILE *, 1195*38fd1498Szrj struct save_macro_data *); 1196*38fd1498Szrj 1197*38fd1498Szrj /* In lex.c */ 1198*38fd1498Szrj extern void cpp_force_token_locations (cpp_reader *, source_location *); 1199*38fd1498Szrj extern void cpp_stop_forcing_token_locations (cpp_reader *); 1200*38fd1498Szrj 1201*38fd1498Szrj /* In expr.c */ 1202*38fd1498Szrj extern enum cpp_ttype cpp_userdef_string_remove_type 1203*38fd1498Szrj (enum cpp_ttype type); 1204*38fd1498Szrj extern enum cpp_ttype cpp_userdef_string_add_type 1205*38fd1498Szrj (enum cpp_ttype type); 1206*38fd1498Szrj extern enum cpp_ttype cpp_userdef_char_remove_type 1207*38fd1498Szrj (enum cpp_ttype type); 1208*38fd1498Szrj extern enum cpp_ttype cpp_userdef_char_add_type 1209*38fd1498Szrj (enum cpp_ttype type); 1210*38fd1498Szrj extern bool cpp_userdef_string_p 1211*38fd1498Szrj (enum cpp_ttype type); 1212*38fd1498Szrj extern bool cpp_userdef_char_p 1213*38fd1498Szrj (enum cpp_ttype type); 1214*38fd1498Szrj extern const char * cpp_get_userdef_suffix 1215*38fd1498Szrj (const cpp_token *); 1216*38fd1498Szrj 1217*38fd1498Szrj #endif /* ! LIBCPP_CPPLIB_H */ 1218