diff options
Diffstat (limited to 'gcc-4.4.3/libcpp/include/cpplib.h')
| -rw-r--r-- | gcc-4.4.3/libcpp/include/cpplib.h | 950 |
1 files changed, 0 insertions, 950 deletions
diff --git a/gcc-4.4.3/libcpp/include/cpplib.h b/gcc-4.4.3/libcpp/include/cpplib.h deleted file mode 100644 index a0ffe0b9f..000000000 --- a/gcc-4.4.3/libcpp/include/cpplib.h +++ /dev/null @@ -1,950 +0,0 @@ -/* Definitions for CPP library. - Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, - 2004, 2005, 2007, 2008, 2009 - Free Software Foundation, Inc. - Written by Per Bothner, 1994-95. - -This program is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 3, or (at your option) any -later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; see the file COPYING3. If not see -<http://www.gnu.org/licenses/>. - - In other words, you are welcome to use, share and improve this program. - You are forbidden to forbid anyone else to use, share and improve - what you give them. Help stamp out software-hoarding! */ -#ifndef LIBCPP_CPPLIB_H -#define LIBCPP_CPPLIB_H - -#include <sys/types.h> -#include "symtab.h" -#include "line-map.h" - -#ifdef __cplusplus -extern "C" { -#endif - -typedef struct cpp_reader cpp_reader; -typedef struct cpp_buffer cpp_buffer; -typedef struct cpp_options cpp_options; -typedef struct cpp_token cpp_token; -typedef struct cpp_string cpp_string; -typedef struct cpp_hashnode cpp_hashnode; -typedef struct cpp_macro cpp_macro; -typedef struct cpp_callbacks cpp_callbacks; -typedef struct cpp_dir cpp_dir; - -struct answer; -struct _cpp_file; - -/* The first three groups, apart from '=', can appear in preprocessor - expressions (+= and -= are used to indicate unary + and - resp.). - This allows a lookup table to be implemented in _cpp_parse_expr. - - The first group, to CPP_LAST_EQ, can be immediately followed by an - '='. The lexer needs operators ending in '=', like ">>=", to be in - the same order as their counterparts without the '=', like ">>". - - See the cpp_operator table optab in expr.c if you change the order or - add or remove anything in the first group. */ - -#define TTYPE_TABLE \ - OP(EQ, "=") \ - OP(NOT, "!") \ - OP(GREATER, ">") /* compare */ \ - OP(LESS, "<") \ - OP(PLUS, "+") /* math */ \ - OP(MINUS, "-") \ - OP(MULT, "*") \ - OP(DIV, "/") \ - OP(MOD, "%") \ - OP(AND, "&") /* bit ops */ \ - OP(OR, "|") \ - OP(XOR, "^") \ - OP(RSHIFT, ">>") \ - OP(LSHIFT, "<<") \ - \ - OP(COMPL, "~") \ - OP(AND_AND, "&&") /* logical */ \ - OP(OR_OR, "||") \ - OP(QUERY, "?") \ - OP(COLON, ":") \ - OP(COMMA, ",") /* grouping */ \ - OP(OPEN_PAREN, "(") \ - OP(CLOSE_PAREN, ")") \ - TK(EOF, NONE) \ - OP(EQ_EQ, "==") /* compare */ \ - OP(NOT_EQ, "!=") \ - OP(GREATER_EQ, ">=") \ - OP(LESS_EQ, "<=") \ - \ - /* These two are unary + / - in preprocessor expressions. */ \ - OP(PLUS_EQ, "+=") /* math */ \ - OP(MINUS_EQ, "-=") \ - \ - OP(MULT_EQ, "*=") \ - OP(DIV_EQ, "/=") \ - OP(MOD_EQ, "%=") \ - OP(AND_EQ, "&=") /* bit ops */ \ - OP(OR_EQ, "|=") \ - OP(XOR_EQ, "^=") \ - OP(RSHIFT_EQ, ">>=") \ - OP(LSHIFT_EQ, "<<=") \ - /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \ - OP(HASH, "#") /* digraphs */ \ - OP(PASTE, "##") \ - OP(OPEN_SQUARE, "[") \ - OP(CLOSE_SQUARE, "]") \ - OP(OPEN_BRACE, "{") \ - OP(CLOSE_BRACE, "}") \ - /* The remainder of the punctuation. Order is not significant. */ \ - OP(SEMICOLON, ";") /* structure */ \ - OP(ELLIPSIS, "...") \ - OP(PLUS_PLUS, "++") /* increment */ \ - OP(MINUS_MINUS, "--") \ - OP(DEREF, "->") /* accessors */ \ - OP(DOT, ".") \ - OP(SCOPE, "::") \ - OP(DEREF_STAR, "->*") \ - OP(DOT_STAR, ".*") \ - OP(ATSIGN, "@") /* used in Objective-C */ \ - \ - TK(NAME, IDENT) /* word */ \ - TK(AT_NAME, IDENT) /* @word - Objective-C */ \ - TK(NUMBER, LITERAL) /* 34_be+ta */ \ - \ - TK(CHAR, LITERAL) /* 'char' */ \ - TK(WCHAR, LITERAL) /* L'char' */ \ - TK(CHAR16, LITERAL) /* u'char' */ \ - TK(CHAR32, LITERAL) /* U'char' */ \ - TK(OTHER, LITERAL) /* stray punctuation */ \ - \ - TK(STRING, LITERAL) /* "string" */ \ - TK(WSTRING, LITERAL) /* L"string" */ \ - TK(STRING16, LITERAL) /* u"string" */ \ - TK(STRING32, LITERAL) /* U"string" */ \ - TK(OBJC_STRING, LITERAL) /* @"string" - Objective-C */ \ - TK(HEADER_NAME, LITERAL) /* <stdio.h> in #include */ \ - \ - TK(COMMENT, LITERAL) /* Only if output comments. */ \ - /* SPELL_LITERAL happens to DTRT. */ \ - TK(MACRO_ARG, NONE) /* Macro argument. */ \ - TK(PRAGMA, NONE) /* Only for deferred pragmas. */ \ - TK(PRAGMA_EOL, NONE) /* End-of-line for deferred pragmas. */ \ - TK(PADDING, NONE) /* Whitespace for -E. */ - -#define OP(e, s) CPP_ ## e, -#define TK(e, s) CPP_ ## e, -enum cpp_ttype -{ - TTYPE_TABLE - N_TTYPES, - - /* Positions in the table. */ - CPP_LAST_EQ = CPP_LSHIFT, - CPP_FIRST_DIGRAPH = CPP_HASH, - CPP_LAST_PUNCTUATOR= CPP_ATSIGN, - CPP_LAST_CPP_OP = CPP_LESS_EQ -}; -#undef OP -#undef TK - -/* C language kind, used when calling cpp_create_reader. */ -enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99, - CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX0X, CLK_CXX0X, CLK_ASM}; - -/* Payload of a NUMBER, STRING, CHAR or COMMENT token. */ -struct cpp_string GTY(()) -{ - unsigned int len; - const unsigned char *text; -}; - -/* Flags for the cpp_token structure. */ -#define PREV_WHITE (1 << 0) /* If whitespace before this token. */ -#define DIGRAPH (1 << 1) /* If it was a digraph. */ -#define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */ -#define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */ -#define NAMED_OP (1 << 4) /* C++ named operators. */ -#define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */ -#define BOL (1 << 6) /* Token at beginning of line. */ -#define PURE_ZERO (1 << 7) /* Single 0 digit, used by the C++ frontend, - set in c-lex.c. */ - -/* Specify which field, if any, of the cpp_token union is used. */ - -enum cpp_token_fld_kind { - CPP_TOKEN_FLD_NODE, - CPP_TOKEN_FLD_SOURCE, - CPP_TOKEN_FLD_STR, - CPP_TOKEN_FLD_ARG_NO, - CPP_TOKEN_FLD_PRAGMA, - CPP_TOKEN_FLD_NONE -}; - -/* A preprocessing token. This has been carefully packed and should - occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */ -struct cpp_token GTY(()) -{ - source_location src_loc; /* Location of first char of token. */ - ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */ - unsigned char flags; /* flags - see above */ - - union cpp_token_u - { - /* An identifier. */ - cpp_hashnode * - GTY ((nested_ptr (union tree_node, - "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", - "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"), - tag ("CPP_TOKEN_FLD_NODE"))) - node; - - /* Inherit padding from this token. */ - cpp_token * GTY ((tag ("CPP_TOKEN_FLD_SOURCE"))) source; - - /* A string, or number. */ - struct cpp_string GTY ((tag ("CPP_TOKEN_FLD_STR"))) str; - - /* Argument no. for a CPP_MACRO_ARG. */ - unsigned int GTY ((tag ("CPP_TOKEN_FLD_ARG_NO"))) arg_no; - - /* Caller-supplied identifier for a CPP_PRAGMA. */ - unsigned int GTY ((tag ("CPP_TOKEN_FLD_PRAGMA"))) pragma; - } GTY ((desc ("cpp_token_val_index (&%1)"))) val; -}; - -/* Say which field is in use. */ -extern enum cpp_token_fld_kind cpp_token_val_index (cpp_token *tok); - -/* A type wide enough to hold any multibyte source character. - cpplib's character constant interpreter requires an unsigned type. - Also, a typedef for the signed equivalent. - The width of this type is capped at 32 bits; there do exist targets - where wchar_t is 64 bits, but only in a non-default mode, and there - would be no meaningful interpretation for a wchar_t value greater - than 2^32 anyway -- the widest wide-character encoding around is - ISO 10646, which stops at 2^31. */ -#if CHAR_BIT * SIZEOF_INT >= 32 -# define CPPCHAR_SIGNED_T int -#elif CHAR_BIT * SIZEOF_LONG >= 32 -# define CPPCHAR_SIGNED_T long -#else -# error "Cannot find a least-32-bit signed integer type" -#endif -typedef unsigned CPPCHAR_SIGNED_T cppchar_t; -typedef CPPCHAR_SIGNED_T cppchar_signed_t; - -/* Style of header dependencies to generate. */ -enum cpp_deps_style { DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM }; - -/* The possible normalization levels, from most restrictive to least. */ -enum cpp_normalize_level { - /* In NFKC. */ - normalized_KC = 0, - /* In NFC. */ - normalized_C, - /* In NFC, except for subsequences where being in NFC would make - the identifier invalid. */ - normalized_identifier_C, - /* Not normalized at all. */ - normalized_none -}; - -/* This structure is nested inside struct cpp_reader, and - carries all the options visible to the command line. */ -struct cpp_options -{ - /* Characters between tab stops. */ - unsigned int tabstop; - - /* The language we're preprocessing. */ - enum c_lang lang; - - /* Nonzero means use extra default include directories for C++. */ - unsigned char cplusplus; - - /* Nonzero means handle cplusplus style comments. */ - unsigned char cplusplus_comments; - - /* Nonzero means define __OBJC__, treat @ as a special token, use - the OBJC[PLUS]_INCLUDE_PATH environment variable, and allow - "#import". */ - unsigned char objc; - - /* Nonzero means don't copy comments into the output file. */ - unsigned char discard_comments; - - /* Nonzero means don't copy comments into the output file during - macro expansion. */ - unsigned char discard_comments_in_macro_exp; - - /* Nonzero means process the ISO trigraph sequences. */ - unsigned char trigraphs; - - /* Nonzero means process the ISO digraph sequences. */ - unsigned char digraphs; - - /* Nonzero means to allow hexadecimal floats and LL suffixes. */ - unsigned char extended_numbers; - - /* Nonzero means process u/U prefix literals (UTF-16/32). */ - unsigned char uliterals; - - /* Nonzero means print names of header files (-H). */ - unsigned char print_include_names; - - /* Nonzero means cpp_pedwarn causes a hard error. */ - unsigned char pedantic_errors; - - /* Nonzero means don't print warning messages. */ - unsigned char inhibit_warnings; - - /* Nonzero means complain about deprecated features. */ - unsigned char warn_deprecated; - - /* Nonzero means don't suppress warnings from system headers. */ - unsigned char warn_system_headers; - - /* Nonzero means don't print error messages. Has no option to - select it, but can be set by a user of cpplib (e.g. fix-header). */ - unsigned char inhibit_errors; - - /* Nonzero means warn if slash-star appears in a comment. */ - unsigned char warn_comments; - - /* Nonzero means warn if a user-supplied include directory does not - exist. */ - unsigned char warn_missing_include_dirs; - - /* Nonzero means warn if there are any trigraphs. */ - unsigned char warn_trigraphs; - - /* Nonzero means warn about multicharacter charconsts. */ - unsigned char warn_multichar; - - /* Nonzero means warn about various incompatibilities with - traditional C. */ - unsigned char warn_traditional; - - /* Nonzero means warn about long long numeric constants. */ - unsigned char warn_long_long; - - /* Nonzero means warn about text after an #endif (or #else). */ - unsigned char warn_endif_labels; - - /* Nonzero means warn about implicit sign changes owing to integer - promotions. */ - unsigned char warn_num_sign_change; - - /* Zero means don't warn about __VA_ARGS__ usage in c89 pedantic mode. - Presumably the usage is protected by the appropriate #ifdef. */ - unsigned char warn_variadic_macros; - - /* Nonzero means warn about builtin macros that are redefined or - explicitly undefined. */ - unsigned char warn_builtin_macro_redefined; - - /* Nonzero means turn warnings into errors. */ - unsigned char warnings_are_errors; - - /* Nonzero means we should look for header.gcc files that remap file - names. */ - unsigned char remap; - - /* Zero means dollar signs are punctuation. */ - unsigned char dollars_in_ident; - - /* Nonzero means UCNs are accepted in identifiers. */ - unsigned char extended_identifiers; - - /* True if we should warn about dollars in identifiers or numbers - for this translation unit. */ - unsigned char warn_dollars; - - /* Nonzero means warn if undefined identifiers are evaluated in an #if. */ - unsigned char warn_undef; - - /* Nonzero means warn of unused macros from the main file. */ - unsigned char warn_unused_macros; - - /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */ - unsigned char c99; - - /* Nonzero if we are conforming to a specific C or C++ standard. */ - unsigned char std; - - /* Nonzero means give all the error messages the ANSI standard requires. */ - unsigned char pedantic; - - /* Nonzero means we're looking at already preprocessed code, so don't - bother trying to do macro expansion and whatnot. */ - unsigned char preprocessed; - - /* Print column number in error messages. */ - unsigned char show_column; - - /* Nonzero means handle C++ alternate operator names. */ - unsigned char operator_names; - - /* True for traditional preprocessing. */ - unsigned char traditional; - - /* Holds the name of the target (execution) character set. */ - const char *narrow_charset; - - /* Holds the name of the target wide character set. */ - const char *wide_charset; - - /* Holds the name of the input character set. */ - const char *input_charset; - - /* The minimum permitted level of normalization before a warning - is generated. */ - enum cpp_normalize_level warn_normalize; - - /* True to warn about precompiled header files we couldn't use. */ - bool warn_invalid_pch; - - /* True if dependencies should be restored from a precompiled header. */ - bool restore_pch_deps; - - /* Dependency generation. */ - struct - { - /* Style of header dependencies to generate. */ - enum cpp_deps_style style; - - /* Assume missing files are generated files. */ - bool missing_files; - - /* Generate phony targets for each dependency apart from the first - one. */ - bool phony_targets; - - /* If true, no dependency is generated on the main file. */ - bool ignore_main_file; - - /* If true, intend to use the preprocessor output (e.g., for compilation) - in addition to the dependency info. */ - bool need_preprocessor_output; - } deps; - - /* Target-specific features set by the front end or client. */ - - /* Precision for target CPP arithmetic, target characters, target - ints and target wide characters, respectively. */ - size_t precision, char_precision, int_precision, wchar_precision; - - /* True means chars (wide chars) are unsigned. */ - bool unsigned_char, unsigned_wchar; - - /* True if the most significant byte in a word has the lowest - address in memory. */ - bool bytes_big_endian; - - /* Nonzero means __STDC__ should have the value 0 in system headers. */ - unsigned char stdc_0_in_system_headers; - - /* True means error callback should be used for diagnostics. */ - bool client_diagnostic; - - /* True disables tokenization outside of preprocessing directives. */ - bool directives_only; -}; - -/* Callback for header lookup for HEADER, which is the name of a - source file. It is used as a method of last resort to find headers - that are not otherwise found during the normal include processing. - The return value is the malloced name of a header to try and open, - if any, or NULL otherwise. This callback is called only if the - header is otherwise unfound. */ -typedef const char *(*missing_header_cb)(cpp_reader *, const char *header, cpp_dir **); - -/* Call backs to cpplib client. */ -struct cpp_callbacks -{ - /* Called when a new line of preprocessed output is started. */ - void (*line_change) (cpp_reader *, const cpp_token *, int); - - /* Called when switching to/from a new file. - The line_map is for the new file. It is NULL if there is no new file. - (In C this happens when done with <built-in>+<command line> and also - when done with a main file.) This can be used for resource cleanup. */ - void (*file_change) (cpp_reader *, const struct line_map *); - - void (*dir_change) (cpp_reader *, const char *); - void (*include) (cpp_reader *, unsigned int, const unsigned char *, - const char *, int, const cpp_token **); - void (*define) (cpp_reader *, unsigned int, cpp_hashnode *); - void (*undef) (cpp_reader *, unsigned int, cpp_hashnode *); - void (*ident) (cpp_reader *, unsigned int, const cpp_string *); - void (*def_pragma) (cpp_reader *, unsigned int); - int (*valid_pch) (cpp_reader *, const char *, int); - void (*read_pch) (cpp_reader *, const char *, int, const char *); - missing_header_cb missing_header; - - /* Context-sensitive macro support. Returns macro (if any) that should - be expanded. */ - cpp_hashnode * (*macro_to_expand) (cpp_reader *, const cpp_token *); - - /* Called to emit a diagnostic if client_diagnostic option is true. - This callback receives the translated message. */ - void (*error) (cpp_reader *, int, const char *, va_list *) - ATTRIBUTE_FPTR_PRINTF(3,0); - - /* Callbacks for when a macro is expanded, or tested (whether - defined or not at the time) in #ifdef, #ifndef or "defined". */ - void (*used_define) (cpp_reader *, unsigned int, cpp_hashnode *); - void (*used_undef) (cpp_reader *, unsigned int, cpp_hashnode *); - /* Called before #define and #undef or other macro definition - changes are processed. */ - void (*before_define) (cpp_reader *); -}; - -/* Chain of directories to look for include files in. */ -struct cpp_dir -{ - /* NULL-terminated singly-linked list. */ - struct cpp_dir *next; - - /* NAME of the directory, NUL-terminated. */ - char *name; - unsigned int len; - - /* One if a system header, two if a system header that has extern - "C" guards for C++. */ - unsigned char sysp; - - /* Is this a user-supplied directory? */ - bool user_supplied_p; - - /* The canonicalized NAME as determined by lrealpath. This field - is only used by hosts that lack reliable inode numbers. */ - char *canonical_name; - - /* Mapping of file names for this directory for MS-DOS and related - platforms. A NULL-terminated array of (from, to) pairs. */ - const char **name_map; - - /* Routine to construct pathname, given the search path name and the - HEADER we are trying to find, return a constructed pathname to - try and open. If this is NULL, the constructed pathname is as - constructed by append_file_to_dir. */ - char *(*construct) (const char *header, cpp_dir *dir); - - /* The C front end uses these to recognize duplicated - directories in the search path. */ - ino_t ino; - dev_t dev; -}; - -/* Name under which this program was invoked. */ -extern const char *progname; - -/* The structure of a node in the hash table. The hash table has - entries for all identifiers: either macros defined by #define - commands (type NT_MACRO), assertions created with #assert - (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros - like __LINE__ are flagged NODE_BUILTIN. Poisoned identifiers are - flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an - identifier that behaves like an operator such as "xor". - NODE_DIAGNOSTIC is for speed in lex_token: it indicates a - diagnostic may be required for this node. Currently this only - applies to __VA_ARGS__ and poisoned identifiers. */ - -/* Hash node flags. */ -#define NODE_OPERATOR (1 << 0) /* C++ named operator. */ -#define NODE_POISONED (1 << 1) /* Poisoned identifier. */ -#define NODE_BUILTIN (1 << 2) /* Builtin macro. */ -#define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */ -#define NODE_WARN (1 << 4) /* Warn if redefined or undefined. */ -#define NODE_DISABLED (1 << 5) /* A disabled macro. */ -#define NODE_MACRO_ARG (1 << 6) /* Used during #define processing. */ -#define NODE_USED (1 << 7) /* Dumped with -dU. */ -#define NODE_CONDITIONAL (1 << 8) /* Conditional macro */ - -/* Different flavors of hash node. */ -enum node_type -{ - NT_VOID = 0, /* No definition yet. */ - NT_MACRO, /* A macro of some form. */ - NT_ASSERTION /* Predicate for #assert. */ -}; - -/* Different flavors of builtin macro. _Pragma is an operator, but we - handle it with the builtin code for efficiency reasons. */ -enum builtin_type -{ - BT_SPECLINE = 0, /* `__LINE__' */ - BT_DATE, /* `__DATE__' */ - BT_FILE, /* `__FILE__' */ - BT_BASE_FILE, /* `__BASE_FILE__' */ - BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */ - BT_TIME, /* `__TIME__' */ - BT_STDC, /* `__STDC__' */ - BT_PRAGMA, /* `_Pragma' operator */ - BT_TIMESTAMP, /* `__TIMESTAMP__' */ - BT_COUNTER /* `__COUNTER__' */ -}; - -#define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE)) -#define HT_NODE(NODE) ((ht_identifier *) (NODE)) -#define NODE_LEN(NODE) HT_LEN (&(NODE)->ident) -#define NODE_NAME(NODE) HT_STR (&(NODE)->ident) - -/* Specify which field, if any, of the union is used. */ - -enum { - NTV_MACRO, - NTV_ANSWER, - NTV_BUILTIN, - NTV_ARGUMENT, - NTV_NONE -}; - -#define CPP_HASHNODE_VALUE_IDX(HNODE) \ - ((HNODE.flags & NODE_MACRO_ARG) ? NTV_ARGUMENT \ - : HNODE.type == NT_MACRO ? ((HNODE.flags & NODE_BUILTIN) \ - ? NTV_BUILTIN : NTV_MACRO) \ - : HNODE.type == NT_ASSERTION ? NTV_ANSWER \ - : NTV_NONE) - -/* The common part of an identifier node shared amongst all 3 C front - ends. Also used to store CPP identifiers, which are a superset of - identifiers in the grammatical sense. */ - -union _cpp_hashnode_value GTY(()) -{ - /* If a macro. */ - cpp_macro * GTY((tag ("NTV_MACRO"))) macro; - /* Answers to an assertion. */ - struct answer * GTY ((tag ("NTV_ANSWER"))) answers; - /* Code for a builtin macro. */ - enum builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin; - /* Macro argument index. */ - unsigned short GTY ((tag ("NTV_ARGUMENT"))) arg_index; -}; - -struct cpp_hashnode GTY(()) -{ - struct ht_identifier ident; - unsigned int is_directive : 1; - unsigned int directive_index : 7; /* If is_directive, - then index into directive table. - Otherwise, a NODE_OPERATOR. */ - unsigned char rid_code; /* Rid code - for front ends. */ - ENUM_BITFIELD(node_type) type : 7; /* CPP node type. */ - unsigned int flags : 9; /* CPP flags. */ - - union _cpp_hashnode_value GTY ((desc ("CPP_HASHNODE_VALUE_IDX (%1)"))) value; -}; - -/* Call this first to get a handle to pass to other functions. - - If you want cpplib to manage its own hashtable, pass in a NULL - pointer. Otherwise you should pass in an initialized hash table - that cpplib will share; this technique is used by the C front - ends. */ -extern cpp_reader *cpp_create_reader (enum c_lang, struct ht *, - struct line_maps *); - -/* Reset the cpp_reader's line_map. This is only used after reading a - PCH file. */ -extern void cpp_set_line_map (cpp_reader *, struct line_maps *); - -/* Call this to change the selected language standard (e.g. because of - command line options). */ -extern void cpp_set_lang (cpp_reader *, enum c_lang); - -/* Set the include paths. */ -extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int); - -/* Call these to get pointers to the options, callback, and deps - structures for a given reader. These pointers are good until you - call cpp_finish on that reader. You can either edit the callbacks - through the pointer returned from cpp_get_callbacks, or set them - with cpp_set_callbacks. */ -extern cpp_options *cpp_get_options (cpp_reader *); -extern cpp_callbacks *cpp_get_callbacks (cpp_reader *); -extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *); -extern struct deps *cpp_get_deps (cpp_reader *); - -/* This function reads the file, but does not start preprocessing. It - returns the name of the original file; this is the same as the - input file, except for preprocessed input. This will generate at - least one file change callback, and possibly a line change callback - too. If there was an error opening the file, it returns NULL. */ -extern const char *cpp_read_main_file (cpp_reader *, const char *); - -/* Set up built-ins with special behavior. Use cpp_init_builtins() - instead unless your know what you are doing. */ -extern void cpp_init_special_builtins (cpp_reader *); - -/* Set up built-ins like __FILE__. */ -extern void cpp_init_builtins (cpp_reader *, int); - -/* This is called after options have been parsed, and partially - processed. */ -extern void cpp_post_options (cpp_reader *); - -/* Set up translation to the target character set. */ -extern void cpp_init_iconv (cpp_reader *); - -/* Call this to finish preprocessing. If you requested dependency - generation, pass an open stream to write the information to, - otherwise NULL. It is your responsibility to close the stream. - - Returns cpp_errors (pfile). */ -extern int cpp_finish (cpp_reader *, FILE *deps_stream); - -/* Call this to release the handle at the end of preprocessing. Any - use of the handle after this function returns is invalid. Returns - cpp_errors (pfile). */ -extern void cpp_destroy (cpp_reader *); - -/* Error count. */ -extern unsigned int cpp_errors (cpp_reader *); - -extern unsigned int cpp_token_len (const cpp_token *); -extern unsigned char *cpp_token_as_text (cpp_reader *, const cpp_token *); -extern unsigned char *cpp_spell_token (cpp_reader *, const cpp_token *, - unsigned char *, bool); -extern void cpp_register_pragma (cpp_reader *, const char *, const char *, - void (*) (cpp_reader *), bool); -extern void cpp_register_deferred_pragma (cpp_reader *, const char *, - const char *, unsigned, bool, bool); -extern int cpp_avoid_paste (cpp_reader *, const cpp_token *, - const cpp_token *); -extern const cpp_token *cpp_get_token (cpp_reader *); -extern const cpp_token *cpp_get_token_with_location (cpp_reader *, - source_location *); -extern const unsigned char *cpp_macro_definition (cpp_reader *, - const cpp_hashnode *); -extern void _cpp_backup_tokens (cpp_reader *, unsigned int); -extern const cpp_token *cpp_peek_token (cpp_reader *, int); - -/* Evaluate a CPP_CHAR or CPP_WCHAR token. */ -extern cppchar_t cpp_interpret_charconst (cpp_reader *, const cpp_token *, - unsigned int *, int *); -/* Evaluate a vector of CPP_STRING or CPP_WSTRING tokens. */ -extern bool cpp_interpret_string (cpp_reader *, - const cpp_string *, size_t, - cpp_string *, enum cpp_ttype); -extern bool cpp_interpret_string_notranslate (cpp_reader *, - const cpp_string *, size_t, - cpp_string *, enum cpp_ttype); - -/* Convert a host character constant to the execution character set. */ -extern cppchar_t cpp_host_to_exec_charset (cpp_reader *, cppchar_t); - -/* Used to register macros and assertions, perhaps from the command line. - The text is the same as the command line argument. */ -extern void cpp_define (cpp_reader *, const char *); -extern void cpp_define_formatted (cpp_reader *pfile, - const char *fmt, ...) ATTRIBUTE_PRINTF_2; -extern void cpp_assert (cpp_reader *, const char *); -extern void cpp_undef (cpp_reader *, const char *); -extern void cpp_unassert (cpp_reader *, const char *); - -extern cpp_macro *cpp_push_definition (cpp_reader *, const char *); -extern void cpp_pop_definition (cpp_reader *, const char *, cpp_macro *); - -/* Undefine all macros and assertions. */ -extern void cpp_undef_all (cpp_reader *); - -extern cpp_buffer *cpp_push_buffer (cpp_reader *, const unsigned char *, - size_t, int); -extern int cpp_defined (cpp_reader *, const unsigned char *, int); - -/* A preprocessing number. Code assumes that any unused high bits of - the double integer are set to zero. */ -typedef unsigned HOST_WIDE_INT cpp_num_part; -typedef struct cpp_num cpp_num; -struct cpp_num -{ - cpp_num_part high; - cpp_num_part low; - bool unsignedp; /* True if value should be treated as unsigned. */ - bool overflow; /* True if the most recent calculation overflowed. */ -}; - -/* cpplib provides two interfaces for interpretation of preprocessing - numbers. - - cpp_classify_number categorizes numeric constants according to - their field (integer, floating point, or invalid), radix (decimal, - octal, hexadecimal), and type suffixes. */ - -#define CPP_N_CATEGORY 0x000F -#define CPP_N_INVALID 0x0000 -#define CPP_N_INTEGER 0x0001 -#define CPP_N_FLOATING 0x0002 - -#define CPP_N_WIDTH 0x00F0 -#define CPP_N_SMALL 0x0010 /* int, float, shrot _Fract/Accum */ -#define CPP_N_MEDIUM 0x0020 /* long, double, long _Fract/_Accum. */ -#define CPP_N_LARGE 0x0040 /* long long, long double, - long long _Fract/Accum. */ - -#define CPP_N_WIDTH_MD 0xF0000 /* machine defined. */ -#define CPP_N_MD_W 0x10000 -#define CPP_N_MD_Q 0x20000 - -#define CPP_N_RADIX 0x0F00 -#define CPP_N_DECIMAL 0x0100 -#define CPP_N_HEX 0x0200 -#define CPP_N_OCTAL 0x0400 -#define CPP_N_BINARY 0x0800 - -#define CPP_N_UNSIGNED 0x1000 /* Properties. */ -#define CPP_N_IMAGINARY 0x2000 -#define CPP_N_DFLOAT 0x4000 - -#define CPP_N_FRACT 0x100000 /* Fract types. */ -#define CPP_N_ACCUM 0x200000 /* Accum types. */ - -/* Classify a CPP_NUMBER token. The return value is a combination of - the flags from the above sets. */ -extern unsigned cpp_classify_number (cpp_reader *, const cpp_token *); - -/* Evaluate a token classified as category CPP_N_INTEGER. */ -extern cpp_num cpp_interpret_integer (cpp_reader *, const cpp_token *, - unsigned int type); - -/* Sign extend a number, with PRECISION significant bits and all - others assumed clear, to fill out a cpp_num structure. */ -cpp_num cpp_num_sign_extend (cpp_num, size_t); - -/* Diagnostic levels. To get a diagnostic without associating a - position in the translation unit with it, use cpp_error_with_line - with a line number of zero. */ - -/* Warning, an error with -Werror. */ -#define CPP_DL_WARNING 0x00 -/* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */ -#define CPP_DL_WARNING_SYSHDR 0x01 -/* Warning, an error with -pedantic-errors or -Werror. */ -#define CPP_DL_PEDWARN 0x02 -/* An error. */ -#define CPP_DL_ERROR 0x03 -/* An internal consistency check failed. Prints "internal error: ", - otherwise the same as CPP_DL_ERROR. */ -#define CPP_DL_ICE 0x04 -/* Extracts a diagnostic level from an int. */ -#define CPP_DL_EXTRACT(l) (l & 0xf) -/* Nonzero if a diagnostic level is one of the warnings. */ -#define CPP_DL_WARNING_P(l) (CPP_DL_EXTRACT (l) >= CPP_DL_WARNING \ - && CPP_DL_EXTRACT (l) <= CPP_DL_PEDWARN) - -/* Output a diagnostic of some kind. */ -extern void cpp_error (cpp_reader *, int, const char *msgid, ...) - ATTRIBUTE_PRINTF_3; - -/* Output a diagnostic with "MSGID: " preceding the - error string of errno. No location is printed. */ -extern void cpp_errno (cpp_reader *, int, const char *msgid); - -/* Same as cpp_error, except additionally specifies a position as a - (translation unit) physical line and physical column. If the line is - zero, then no location is printed. */ -extern void cpp_error_with_line (cpp_reader *, int, source_location, unsigned, - const char *msgid, ...) ATTRIBUTE_PRINTF_5; - -/* In lex.c */ -extern int cpp_ideq (const cpp_token *, const char *); -extern void cpp_output_line (cpp_reader *, FILE *); -extern unsigned char *cpp_output_line_to_string (cpp_reader *, - const unsigned char *); -extern void cpp_output_token (const cpp_token *, FILE *); -extern const char *cpp_type2name (enum cpp_ttype); -/* Returns the value of an escape sequence, truncated to the correct - target precision. PSTR points to the input pointer, which is just - after the backslash. LIMIT is how much text we have. WIDE is true - if the escape sequence is part of a wide character constant or - string literal. Handles all relevant diagnostics. */ -extern cppchar_t cpp_parse_escape (cpp_reader *, const unsigned char ** pstr, - const unsigned char *limit, int wide); - -/* Structure used to hold a comment block at a given location in the - source code. */ - -typedef struct -{ - /* Text of the comment including the terminators. */ - char *comment; - - /* source location for the given comment. */ - source_location sloc; -} cpp_comment; - -/* Structure holding all comments for a given cpp_reader. */ - -typedef struct -{ - /* table of comment entries. */ - cpp_comment *entries; - - /* number of actual entries entered in the table. */ - int count; - - /* number of entries allocated currently. */ - int allocated; -} cpp_comment_table; - -/* Returns the table of comments encountered by the preprocessor. This - table is only populated when pfile->state.save_comments is true. */ -extern cpp_comment_table *cpp_get_comments (cpp_reader *); - -/* In hash.c */ - -/* Lookup an identifier in the hashtable. Puts the identifier in the - table if it is not already there. */ -extern cpp_hashnode *cpp_lookup (cpp_reader *, const unsigned char *, - unsigned int); - -typedef int (*cpp_cb) (cpp_reader *, cpp_hashnode *, void *); -extern void cpp_forall_identifiers (cpp_reader *, cpp_cb, void *); - -/* In macro.c */ -extern void cpp_scan_nooutput (cpp_reader *); -extern int cpp_sys_macro_p (cpp_reader *); -extern unsigned char *cpp_quote_string (unsigned char *, const unsigned char *, - unsigned int); - -/* In files.c */ -extern bool cpp_included (cpp_reader *, const char *); -extern bool cpp_included_before (cpp_reader *, const char *, source_location); -extern void cpp_make_system_header (cpp_reader *, int, int); -extern bool cpp_push_include (cpp_reader *, const char *); -extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *); -extern const char *cpp_get_path (struct _cpp_file *); -extern cpp_dir *cpp_get_dir (struct _cpp_file *); -extern cpp_buffer *cpp_get_buffer (cpp_reader *); -extern struct _cpp_file *cpp_get_file (cpp_buffer *); -extern cpp_buffer *cpp_get_prev (cpp_buffer *); -extern void cpp_clear_file_cache (cpp_reader *); - -/* In pch.c */ -struct save_macro_data; -extern int cpp_save_state (cpp_reader *, FILE *); -extern int cpp_write_pch_deps (cpp_reader *, FILE *); -extern int cpp_write_pch_state (cpp_reader *, FILE *); -extern int cpp_valid_state (cpp_reader *, const char *, int); -extern void cpp_prepare_state (cpp_reader *, struct save_macro_data **); -extern int cpp_read_state (cpp_reader *, const char *, FILE *, - struct save_macro_data *); - -#ifdef __cplusplus -} -#endif - -#endif /* ! LIBCPP_CPPLIB_H */ |