/* Definitions for CPP library.
- Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
Written by Per Bothner, 1994-95.
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 __GCC_CPPLIB__
-#define __GCC_CPPLIB__
+#ifndef GCC_CPPLIB_H
+#define GCC_CPPLIB_H
#include <sys/types.h>
+#include "hashtable.h"
+#include "line-map.h"
#ifdef __cplusplus
extern "C" {
#endif
-/* For complex reasons, cpp_reader is also typedefed in c-pragma.h. */
-#ifndef _C_PRAGMA_H
typedef struct cpp_reader cpp_reader;
-#endif
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_lexer_pos cpp_lexer_pos;
-typedef struct cpp_lookahead cpp_lookahead;
typedef struct cpp_callbacks cpp_callbacks;
+typedef struct cpp_dir cpp_dir;
struct answer;
-struct file_name_map_list;
-/* The first two groups, apart from '=', can appear in preprocessor
- expressions. This allows a lookup table to be implemented in
- _cpp_parse_expr.
+/* 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
#define CPP_LAST_EQ CPP_MAX
#define CPP_FIRST_DIGRAPH CPP_HASH
#define CPP_LAST_PUNCTUATOR CPP_DOT_STAR
+#define CPP_LAST_CPP_OP CPP_LESS_EQ
#define TTYPE_TABLE \
OP(CPP_EQ = 0, "=") \
OP(CPP_COMMA, ",") /* grouping */ \
OP(CPP_OPEN_PAREN, "(") \
OP(CPP_CLOSE_PAREN, ")") \
+ TK(CPP_EOF, SPELL_NONE) \
OP(CPP_EQ_EQ, "==") /* compare */ \
OP(CPP_NOT_EQ, "!=") \
OP(CPP_GREATER_EQ, ">=") \
OP(CPP_LESS_EQ, "<=") \
\
+ /* These two are unary + / - in preprocessor expressions. */ \
OP(CPP_PLUS_EQ, "+=") /* math */ \
OP(CPP_MINUS_EQ, "-=") \
+\
OP(CPP_MULT_EQ, "*=") \
OP(CPP_DIV_EQ, "/=") \
OP(CPP_MOD_EQ, "%=") \
OP(CPP_SCOPE, "::") \
OP(CPP_DEREF_STAR, "->*") \
OP(CPP_DOT_STAR, ".*") \
- OP(CPP_ATSIGN, "@") /* used in Objective C */ \
+ OP(CPP_ATSIGN, "@") /* used in Objective-C */ \
\
TK(CPP_NAME, SPELL_IDENT) /* word */ \
- TK(CPP_INT, SPELL_STRING) /* 23 */ \
- TK(CPP_FLOAT, SPELL_STRING) /* 3.14159 */ \
- TK(CPP_NUMBER, SPELL_STRING) /* 34_be+ta */ \
+ TK(CPP_AT_NAME, SPELL_IDENT) /* @word - Objective-C */ \
+ TK(CPP_NUMBER, SPELL_LITERAL) /* 34_be+ta */ \
\
- TK(CPP_CHAR, SPELL_STRING) /* 'char' */ \
- TK(CPP_WCHAR, SPELL_STRING) /* L'char' */ \
- TK(CPP_OTHER, SPELL_CHAR) /* stray punctuation */ \
+ TK(CPP_CHAR, SPELL_LITERAL) /* 'char' */ \
+ TK(CPP_WCHAR, SPELL_LITERAL) /* L'char' */ \
+ TK(CPP_OTHER, SPELL_LITERAL) /* stray punctuation */ \
\
- TK(CPP_STRING, SPELL_STRING) /* "string" */ \
- TK(CPP_WSTRING, SPELL_STRING) /* L"string" */ \
- TK(CPP_HEADER_NAME, SPELL_STRING) /* <stdio.h> in #include */ \
+ TK(CPP_STRING, SPELL_LITERAL) /* "string" */ \
+ TK(CPP_WSTRING, SPELL_LITERAL) /* L"string" */ \
+ TK(CPP_OBJC_STRING, SPELL_LITERAL) /* @"string" - Objective-C */ \
+ TK(CPP_HEADER_NAME, SPELL_LITERAL) /* <stdio.h> in #include */ \
\
- TK(CPP_COMMENT, SPELL_STRING) /* Only if output comments. */ \
+ TK(CPP_COMMENT, SPELL_LITERAL) /* Only if output comments. */ \
+ /* SPELL_LITERAL happens to DTRT. */ \
TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
- OP(CPP_EOF, "EOL") /* End of line or file. */
+ TK(CPP_PADDING, SPELL_NONE) /* Whitespace for cpp0. */
#define OP(e, s) e,
#define TK(e, s) e,
/* C language kind, used when calling cpp_reader_init. */
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
- CLK_GNUCXX, CLK_CXX98, CLK_OBJC, CLK_OBJCXX, CLK_ASM};
+ CLK_GNUCXX, CLK_CXX98, CLK_ASM};
-/* Payload of a NUMBER, FLOAT, STRING, or COMMENT token. */
+/* Payload of a NUMBER, STRING, CHAR or COMMENT token. */
struct cpp_string
{
unsigned int len;
#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 AVOID_LPASTE (1 << 6) /* Check left for accidental pastes. */
+#define BOL (1 << 6) /* Token at beginning of line. */
/* A preprocessing token. This has been carefully packed and should
- occupy 12 bytes on 32-bit hosts and 16 bytes on 64-bit hosts. */
+ occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */
struct cpp_token
{
+ fileline line; /* Logical line of first char of token. */
+ unsigned short col; /* Column of first char of token. */
ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */
unsigned char flags; /* flags - see above */
union
{
- struct cpp_hashnode *node; /* An identifier. */
+ cpp_hashnode *node; /* An identifier. */
+ const cpp_token *source; /* Inherit padding from this token. */
struct cpp_string str; /* A string, or number. */
unsigned int arg_no; /* Argument no. for a CPP_MACRO_ARG. */
- unsigned char c; /* Character represented by CPP_OTHER. */
} val;
};
-/* The position of a token in the current file. */
-struct cpp_lexer_pos
-{
- unsigned int line;
- unsigned int output_line;
- unsigned short col;
-};
-
-typedef struct cpp_token_with_pos cpp_token_with_pos;
-struct cpp_token_with_pos
-{
- cpp_token token;
- cpp_lexer_pos pos;
-};
-
-/* Token lookahead. */
-struct cpp_lookahead
-{
- struct cpp_lookahead *next;
- cpp_token_with_pos *tokens;
- cpp_lexer_pos pos;
- unsigned int cur, count, cap;
-};
-
-/* A standalone character. We may want to make it unsigned for the
- same reason we use unsigned char - to avoid signedness issues. */
-typedef int cppchar_t;
-
-/* Values for opts.dump_macros.
- dump_only means inhibit output of the preprocessed text
- and instead output the definitions of all user-defined
- macros in a form suitable for use as input to cpp.
- dump_names means pass #define and the macro name through to output.
- dump_definitions means pass the whole definition (plus #define) through
-*/
-enum { dump_none = 0, dump_only, dump_names, dump_definitions };
+/* 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;
/* This structure is nested inside struct cpp_reader, and
carries all the options visible to the command line. */
struct cpp_options
{
- /* Name of input and output files. */
- const char *in_fname;
- const char *out_fname;
-
/* Characters between tab stops. */
unsigned int tabstop;
- /* Pending options - -D, -U, -A, -I, -ixxx. */
- struct cpp_pending *pending;
-
- /* File name which deps are being written to. This is 0 if deps are
- being written to stdout. */
- const char *deps_file;
-
- /* Search paths for include files. */
- struct search_path *quote_include; /* "" */
- struct search_path *bracket_include; /* <> */
-
- /* Map between header names and file names, used only on DOS where
- file names are limited in length. */
- struct file_name_map_list *map_list;
-
- /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
- in the standard include file directories. */
- const char *include_prefix;
- unsigned int include_prefix_len;
-
- /* -fleading_underscore sets this to "_". */
- const char *user_label_prefix;
-
/* The language we're preprocessing. */
enum c_lang lang;
- /* Non-0 means -v, so print the full set of include dirs. */
- unsigned char verbose;
-
/* Nonzero means use extra default include directories for C++. */
unsigned char cplusplus;
/* Nonzero means handle cplusplus style comments */
unsigned char cplusplus_comments;
- /* Nonzero means handle #import, for objective C. */
+ /* Nonzero means define __OBJC__, treat @ as a special token, and
+ use the OBJC[PLUS]_INCLUDE_PATH environment variable. */
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 to allow hexadecimal floats and LL suffixes. */
unsigned char extended_numbers;
- /* Nonzero means print the names of included files rather than the
- preprocessed output. 1 means just the #include "...", 2 means
- #include <...> as well. */
- unsigned char print_deps;
-
- /* Nonzero if phony targets are created for each header. */
- unsigned char deps_phony_targets;
-
- /* Nonzero if missing .h files in -M output are assumed to be
- generated files and not errors. */
- unsigned char print_deps_missing_files;
-
- /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
- unsigned char print_deps_append;
-
/* Nonzero means print names of header files (-H). */
unsigned char print_include_names;
/* 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 warn if there are any trigraphs. */
unsigned char warn_trigraphs;
- /* Nonzero means warn if #import is used. */
- unsigned char warn_import;
+ /* 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;
+
/* Nonzero means turn warnings into errors. */
unsigned char warnings_are_errors;
- /* Nonzero causes output not to be done, but directives such as
- #define that have side effects are still obeyed. */
- unsigned char no_output;
-
/* Nonzero means we should look for header.gcc files that remap file
names. */
unsigned char remap;
- /* Nonzero means don't output line number information. */
- unsigned char no_line_commands;
-
- /* Nonzero means -I- has been seen, so don't look for #include "foo"
- the source-file directory. */
- unsigned char ignore_srcdir;
-
- /* Zero means dollar signs are punctuation. */
+ /* Zero means dollar signs are punctuation. */
unsigned char dollars_in_ident;
+ /* 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;
bother trying to do macro expansion and whatnot. */
unsigned char preprocessed;
- /* Nonzero disables all the standard directories for headers. */
- unsigned char no_standard_includes;
+ /* Print column number in error messages. */
+ unsigned char show_column;
- /* Nonzero disables the C++-specific standard directories for headers. */
- unsigned char no_standard_cplusplus_includes;
+ /* Nonzero means handle C++ alternate operator names. */
+ unsigned char operator_names;
- /* Nonzero means dump macros in some fashion - see above. */
- unsigned char dump_macros;
+ /* True for traditional preprocessing. */
+ unsigned char traditional;
- /* Nonzero means pass #include lines through to the output. */
- unsigned char dump_includes;
+ /* Holds the name of the target (execution) character set. */
+ const char *narrow_charset;
- /* Print column number in error messages. */
- unsigned char show_column;
+ /* Holds the name of the target wide character set. */
+ const char *wide_charset;
- /* Treat C++ alternate operator names special. */
- unsigned char operator_names;
+ /* True to warn about precompiled header files we couldn't use. */
+ bool warn_invalid_pch;
- /* True if --help, --version or --target-help appeared in the
- options. Stand-alone CPP should then bail out after option
- parsing; drivers might want to continue printing help. */
- unsigned char help_only;
-};
+ /* True if dependencies should be restored from a precompiled header. */
+ bool restore_pch_deps;
-/* This structure is passed to the call back when changing file. */
-enum cpp_fc_reason {FC_ENTER = 0, FC_LEAVE, FC_RENAME};
+ /* Dependency generation. */
+ struct
+ {
+ /* Style of header dependencies to generate. */
+ enum {DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM } style;
-struct cpp_file_loc
-{
- const char *filename;
- unsigned int lineno;
-};
+ /* Assume missing files are generated files. */
+ bool missing_files;
-typedef struct cpp_file_change cpp_file_change;
-struct cpp_file_change
-{
- struct cpp_file_loc from; /* Line of #include or #line. */
- struct cpp_file_loc to; /* Line after #include or #line, or start. */
- enum cpp_fc_reason reason; /* Reason for change. */
- unsigned char sysp; /* Nonzero if system header. */
- unsigned char externc; /* Nonzero if wrapper needed. */
+ /* 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;
+ } 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;
+
+ /* Nonzero means output a directory line marker right after the
+ initial file name line marker, and before a duplicate initial
+ line marker. */
+ bool working_directory;
};
-/* Call backs. */
+/* Call backs to cpplib client. */
struct cpp_callbacks
{
- void (*file_change) PARAMS ((cpp_reader *, const cpp_file_change *));
- void (*include) PARAMS ((cpp_reader *, const unsigned char *,
- const cpp_token *));
- void (*define) PARAMS ((cpp_reader *, cpp_hashnode *));
- void (*undef) PARAMS ((cpp_reader *, cpp_hashnode *));
- void (*poison) PARAMS ((cpp_reader *));
- void (*ident) PARAMS ((cpp_reader *, const cpp_string *));
- void (*def_pragma) PARAMS ((cpp_reader *));
+ /* 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);
+ 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 *);
};
-#define CPP_FATAL_LIMIT 1000
-/* True if we have seen a "fatal" error. */
-#define CPP_FATAL_ERRORS(PFILE) (cpp_errors (PFILE) >= CPP_FATAL_LIMIT)
+/* 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;
+
+ /* 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;
+
+ /* 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;
-/* Where does this buffer come from? A faked include, a source file,
- a builtin macro, a command-line option, or a _Pragma operator. */
-enum cpp_buffer_type {BUF_FAKE, BUF_FILE, BUF_BUILTIN,
- BUF_CL_OPTION, BUF_PRAGMA};
-
/* 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. Poisioned identifiers are
+ 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
#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. */
/* Different flavors of hash node. */
enum node_type
NT_ASSERTION /* Predicate for #assert. */
};
-/* Different flavors of builtin macro. */
+/* 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_BASE_FILE, /* `__BASE_FILE__' */
BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
BT_TIME, /* `__TIME__' */
- BT_STDC /* `__STDC__' */
+ BT_STDC, /* `__STDC__' */
+ BT_PRAGMA /* `_Pragma' operator */
};
-/* There is a slot in the hashnode for use by front ends when integrated
- with cpplib. It holds a tree (see tree.h) but we mustn't drag that
- header into every user of cpplib.h. cpplib does not do anything with
- this slot except clear it when a new node is created. */
-union tree_node;
+#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)
-struct cpp_hashnode
+/* 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. */
+struct cpp_hashnode GTY(())
{
- const unsigned char *name; /* Null-terminated name. */
- unsigned int hash; /* Cached hash value. */
- unsigned short length; /* Length of name excluding null. */
- unsigned short arg_index; /* Macro argument index. */
- unsigned char directive_index; /* Index into directive table. */
- ENUM_BITFIELD(node_type) type : 8; /* Node type. */
- unsigned char flags; /* Node flags. */
-
- union
+ 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 : 8; /* CPP node type. */
+ unsigned char flags; /* CPP flags. */
+
+ union _cpp_hashnode_value
{
- cpp_macro *macro; /* If a macro. */
- struct answer *answers; /* Answers to an assertion. */
- enum cpp_ttype operator; /* Code for a named operator. */
- enum builtin_type builtin; /* Code for a builtin macro. */
- } value;
+ /* If a macro. */
+ cpp_macro * GTY((skip (""))) macro;
+ /* Answers to an assertion. */
+ struct answer * GTY ((skip (""))) answers;
+ /* Code for a builtin macro. */
+ enum builtin_type GTY ((tag ("1"))) builtin;
+ /* Macro argument index. */
+ unsigned short GTY ((tag ("0"))) arg_index;
+ } GTY ((desc ("0"))) value;
};
-/* Call this first to get a handle to pass to other functions. */
-extern cpp_reader *cpp_create_reader PARAMS ((enum c_lang));
+/* 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 *);
+
+/* 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);
-/* Call this to release the handle. Any use of the handle after this
- function returns is invalid. Returns cpp_errors (pfile). */
-extern int cpp_destroy PARAMS ((cpp_reader *));
+/* Add a dependency TARGET. Quote it for "make" if QUOTE. Can be
+ called any number of times before cpp_read_main_file(). If no
+ targets have been added before cpp_read_main_file(), then the
+ default target is used. */
+extern void cpp_add_dependency_target (cpp_reader *, const char *, int);
+
+/* 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 and callback 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 PARAMS ((cpp_reader *));
-extern cpp_callbacks *cpp_get_callbacks PARAMS ((cpp_reader *));
-extern void cpp_set_callbacks PARAMS ((cpp_reader *, cpp_callbacks *));
-
-/* Now call cpp_handle_option[s] to handle 1[or more] switches. The
- return value is the number of arguments used. If
- cpp_handle_options returns without using all arguments, it couldn't
- understand the next switch. When there are no switches left, you
- must call cpp_post_options before calling cpp_start_read. Only
- after cpp_post_options are the contents of the cpp_options
- structure reliable. */
-extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
-extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
-extern void cpp_post_options PARAMS ((cpp_reader *));
+extern cpp_options *cpp_get_options (cpp_reader *);
+extern const struct line_maps *cpp_get_line_maps (cpp_reader *);
+extern cpp_callbacks *cpp_get_callbacks (cpp_reader *);
+extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *);
+
+/* This function finds the main file, but does not start reading it.
+ Returns true iff the file was found. */
+extern bool cpp_find_main_file (cpp_reader *, const char *);
+
+/* This function reads the file, but does not start preprocessing.
+ This will generate at least one file change callback, and possibly
+ a line change callback. */
+extern void cpp_push_main_file (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 PARAMS ((cpp_reader *));
-
-extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
-extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *,
- const cpp_token *));
-extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
- unsigned char *));
-extern void cpp_register_pragma PARAMS ((cpp_reader *,
- const char *, const char *,
- void (*) PARAMS ((cpp_reader *))));
-extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
-
-extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
-extern void cpp_finish PARAMS ((cpp_reader *));
-extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
- const cpp_token *));
-extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
- const cpp_token *, int *));
-extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
-extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
-extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
- const cpp_hashnode *));
+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 *);
+extern void cpp_register_pragma (cpp_reader *, const char *, const char *,
+ void (*) (cpp_reader *));
+extern int cpp_avoid_paste (cpp_reader *, const cpp_token *,
+ const cpp_token *);
+extern const cpp_token *cpp_get_token (cpp_reader *);
+extern const unsigned char *cpp_macro_definition (cpp_reader *,
+ const cpp_hashnode *);
+extern void _cpp_backup_tokens (cpp_reader *, unsigned int);
/* Evaluate a CPP_CHAR or CPP_WCHAR token. */
-extern HOST_WIDE_INT
-cpp_interpret_charconst PARAMS ((cpp_reader *, const cpp_token *,
- int, int, unsigned int *));
-
-extern void cpp_define PARAMS ((cpp_reader *, const char *));
-extern void cpp_assert PARAMS ((cpp_reader *, const char *));
-extern void cpp_undef PARAMS ((cpp_reader *, const char *));
-extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
-
-extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
- const unsigned char *, size_t,
- enum cpp_buffer_type,
- const char *));
-extern cpp_buffer *cpp_pop_buffer PARAMS ((cpp_reader *));
-extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
+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 *, bool);
+
+/* 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_assert (cpp_reader *, const char *);
+extern void cpp_undef (cpp_reader *, const char *);
+extern void cpp_unassert (cpp_reader *, const char *);
+
+/* 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. */
+#define CPP_N_MEDIUM 0x0020 /* long, double. */
+#define CPP_N_LARGE 0x0040 /* long long, long double. */
+
+#define CPP_N_RADIX 0x0F00
+#define CPP_N_DECIMAL 0x0100
+#define CPP_N_HEX 0x0200
+#define CPP_N_OCTAL 0x0400
+
+#define CPP_N_UNSIGNED 0x1000 /* Properties. */
+#define CPP_N_IMAGINARY 0x2000
+
+/* 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)
/* N.B. The error-message-printer prototypes have not been nicely
formatted because exgettext needs to see 'msgid' on the same line
string argument gets a name in an effort to keep the lines from
getting ridiculously oversized. */
-extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
- ATTRIBUTE_PRINTF_4;
-extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
- ATTRIBUTE_PRINTF_4;
-extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
- ATTRIBUTE_PRINTF_4;
-extern void cpp_pedwarn_with_file_and_line PARAMS ((cpp_reader *, const char *, int, int, const char *msgid, ...))
- ATTRIBUTE_PRINTF_5;
-extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
-extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
+/* 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, fileline, unsigned,
+ const char *msgid, ...) ATTRIBUTE_PRINTF_5;
/* In cpplex.c */
-extern int cpp_ideq PARAMS ((const cpp_token *,
- const char *));
-extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
-extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
-extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
+extern int cpp_ideq (const cpp_token *, const char *);
+extern void cpp_output_line (cpp_reader *, FILE *);
+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);
/* In cpphash.c */
-extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
- const unsigned char *, size_t));
-extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
- int (*) PARAMS ((cpp_reader *,
- cpp_hashnode *,
- void *)),
- void *));
+
+/* 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 cppmacro.c */
-extern void cpp_scan_buffer_nooutput PARAMS ((cpp_reader *, int));
-extern void cpp_start_lookahead PARAMS ((cpp_reader *));
-extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
-extern int cpp_sys_macro_p PARAMS ((cpp_reader *));
+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 cppfiles.c */
-extern int cpp_included PARAMS ((cpp_reader *, const char *));
-extern void cpp_make_system_header PARAMS ((cpp_reader *, int, int));
+extern bool cpp_included (cpp_reader *, const char *);
+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 *);
+
+/* In cpppch.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 /* __GCC_CPPLIB__ */
+
+#endif /* ! GCC_CPPLIB_H */
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