/*
* Copyright © 2011, 2021, 2023 Nick Bowler
*
* 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 of the License, 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. If not, see .
*/
#ifndef CDECL_H_
#define CDECL_H_
#include
#include
/* Declaration specifier kinds. */
enum {
CDECL_SPEC_TYPE = 256,
CDECL_SPEC_STOR = 512,
CDECL_SPEC_QUAL = 1024,
CDECL_SPEC_FUNC = 2048,
};
enum {
CDECL_TYPE_VOID = CDECL_SPEC_TYPE,
CDECL_TYPE_CHAR,
CDECL_TYPE_SHORT,
CDECL_TYPE_INT,
CDECL_TYPE_LONG,
CDECL_TYPE_FLOAT,
CDECL_TYPE_DOUBLE,
CDECL_TYPE_SIGNED,
CDECL_TYPE_UNSIGNED,
CDECL_TYPE_BOOL,
CDECL_TYPE_COMPLEX,
CDECL_TYPE_IMAGINARY,
CDECL_TYPE_STRUCT,
CDECL_TYPE_UNION,
CDECL_TYPE_ENUM,
CDECL_TYPE_IDENT,
CDECL_STOR_TYPEDEF = CDECL_SPEC_STOR,
CDECL_STOR_EXTERN,
CDECL_STOR_STATIC,
CDECL_STOR_AUTO,
CDECL_STOR_REGISTER,
CDECL_QUAL_RESTRICT = CDECL_SPEC_QUAL,
CDECL_QUAL_VOLATILE,
CDECL_QUAL_CONST,
CDECL_FUNC_INLINE = CDECL_SPEC_FUNC,
};
/* Declarator types. */
enum {
CDECL_DECL_NULL,
CDECL_DECL_IDENT,
CDECL_DECL_POINTER,
CDECL_DECL_ARRAY,
CDECL_DECL_FUNCTION,
};
struct cdecl {
struct cdecl *next;
struct cdecl_declspec {
struct cdecl_declspec *next;
unsigned type;
char *ident;
} *specifiers;
struct cdecl_declarator {
struct cdecl_declarator *child;
unsigned type;
union {
char *ident;
struct cdecl_pointer {
struct cdecl_declspec *qualifiers;
} pointer;
struct cdecl_array {
char *vla;
uintmax_t length;
} array;
struct cdecl_function {
struct cdecl *parameters;
_Bool variadic;
} function;
} u;
} *declarators;
};
struct cdecl *cdecl_parse_decl(const char *declstr);
struct cdecl *cdecl_parse_english(const char *english);
void cdecl_free(struct cdecl *decl);
size_t cdecl_explain(char *buf, size_t n, struct cdecl *decl);
size_t cdecl_declare(char *buf, size_t n, struct cdecl *decl);
static inline int cdecl_spec_kind(const struct cdecl_declspec *spec)
{
return spec->type & ~(CDECL_SPEC_TYPE-1u);
}
static inline _Bool cdecl_is_abstract(const struct cdecl_declarator *d)
{
while (d->child)
d = d->child;
return d->type != CDECL_DECL_IDENT;
}
/* Error handling. */
enum {
CDECL_ENOMEM = 1,
CDECL_ENOPARSE,
/* Obsolete error codes (no longer returned by the library) */
CDECL_EBADARRAY,
CDECL_EBADDECL,
CDECL_EBADPARAMS,
CDECL_EBADPOINTER,
CDECL_EBADQUAL,
CDECL_EBADRETURN,
CDECL_EBADSTOR,
CDECL_EBADTYPE,
CDECL_ENOTFUNC,
CDECL_EVOIDPARAM
};
struct cdecl_error {
unsigned code;
const char *str;
};
const struct cdecl_error *cdecl_get_error(void);
#endif