picrin/include/picrin.h

229 lines
7.2 KiB
C

/**
* Copyright (c) 2012-2013 Yuichi Nishiwaki and other picrin contributors.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef PICRIN_H__
#define PICRIN_H__
#if defined(__cplusplus)
extern "C" {
#endif
#include <stddef.h>
#include <stdbool.h>
#include <setjmp.h>
#include <stdio.h>
#include <assert.h>
#include "xhash/xhash.h"
#include "xfile/xfile.h"
#if __STDC_VERSION__ >= 201112L
# define NORETURN _Noreturn
#elif __GNUC__ || __clang__
# define NORETURN __attribute__((noreturn))
#endif
#define FALLTHROUGH ((void)0)
#define UNUSED(v) ((void)(v))
#define GENSYM2__(x,y) x##y
#define GENSYM1__(x,y) GENSYM2__(x,y)
#if defined(__COUNTER__)
# define GENSYM(x) GENSYM1__(x,__COUNTER__)
#else
# define GENSYM(x) GENSYM1__(x,__LINE__)
#endif
#include "config.h"
#include "picrin/value.h"
struct pic_code;
typedef struct {
int argc, retc;
struct pic_code *ip;
pic_value *fp;
struct pic_env *env;
} pic_callinfo;
struct pic_block {
struct pic_block *prev;
int depth;
struct pic_proc *in, *out;
unsigned refcnt;
};
typedef struct {
int argc;
char **argv, **envp;
struct pic_block *blk;
pic_value *sp;
pic_value *stbase, *stend;
pic_callinfo *ci;
pic_callinfo *cibase, *ciend;
struct pic_code *ip;
struct pic_proc **rescue;
size_t ridx, rlen;
pic_sym sDEFINE, sLAMBDA, sIF, sBEGIN, sQUOTE, sSETBANG;
pic_sym sQUASIQUOTE, sUNQUOTE, sUNQUOTE_SPLICING;
pic_sym sDEFINE_SYNTAX, sDEFINE_MACRO;
pic_sym sDEFINE_LIBRARY, sIMPORT, sEXPORT;
pic_sym sCONS, sCAR, sCDR, sNILP;
pic_sym sADD, sSUB, sMUL, sDIV, sMINUS;
pic_sym sEQ, sLT, sLE, sGT, sGE, sNOT;
xhash *syms; /* name to symbol */
xhash *sym_names; /* symbol to name */
int sym_cnt;
int uniq_sym_cnt;
xhash *global_tbl;
pic_value *globals;
size_t glen, gcapa;
xhash *macros;
pic_value lib_tbl;
struct pic_lib *lib;
jmp_buf *jmp;
struct pic_error *err;
struct pic_heap *heap;
struct pic_object *arena[PIC_ARENA_SIZE];
int arena_idx;
pic_value *native_stack_start;
} pic_state;
typedef pic_value (*pic_func_t)(pic_state *);
enum pic_parser_res {
PIC_PARSER_INCOMPLETE = -1,
PIC_PARSER_ERROR = -2
/* if parser is successfully done, return the number of exprs (>= 0) */
};
void *pic_alloc(pic_state *, size_t);
void *pic_realloc(pic_state *, void *, size_t);
void *pic_calloc(pic_state *, size_t, size_t);
struct pic_object *pic_obj_alloc(pic_state *, size_t, enum pic_tt);
struct pic_object *pic_obj_alloc_unsafe(pic_state *, size_t, enum pic_tt);
void pic_free(pic_state *, void *);
void pic_gc_run(pic_state *);
void pic_gc_protect(pic_state *, pic_value);
int pic_gc_arena_preserve(pic_state *);
void pic_gc_arena_restore(pic_state *, int);
pic_state *pic_open(int argc, char *argv[], char **envp);
void pic_close(pic_state *);
void pic_define(pic_state *, const char *, pic_value); /* symbol is automatically exported */
pic_value pic_ref(pic_state *, const char *);
void pic_set(pic_state *, const char *, pic_value);
struct pic_proc *pic_get_proc(pic_state *);
int pic_get_args(pic_state *, const char *, ...);
void pic_defun(pic_state *, const char *, pic_func_t);
void pic_defmacro(pic_state *, const char *, struct pic_proc *);
void pic_defvar(pic_state *, const char *, pic_value);
bool pic_equal_p(pic_state *, pic_value, pic_value);
pic_sym pic_intern_cstr(pic_state *, const char *);
const char *pic_symbol_name(pic_state *, pic_sym);
pic_sym pic_gensym(pic_state *, pic_sym);
bool pic_interned_p(pic_state *, pic_sym);
char *pic_strdup(pic_state *, const char *);
char *pic_strndup(pic_state *, const char *, size_t);
struct pic_string *pic_str_new(pic_state *, const char *, size_t); /* the 2nd arg may be NULL for empty string */
struct pic_string *pic_str_new_cstr(pic_state *, const char *);
pic_value pic_format(pic_state *, const char *, ...);
pic_value pic_vformat(pic_state *, const char *, va_list);
pic_value pic_vfformat(pic_state *, XFILE *, const char *, va_list);
struct pic_vector *pic_vec_new(pic_state *, size_t);
struct pic_vector *pic_vec_new_from_list(pic_state *, pic_value);
void pic_vec_extend_ip(pic_state *, struct pic_vector *, size_t);
int pic_parse_file(pic_state *, FILE *, pic_value *);
int pic_parse_cstr(pic_state *, const char *, pic_value *);
pic_value pic_parse(pic_state *, const char *);
pic_value pic_load(pic_state *, const char *);
pic_value pic_apply(pic_state *, struct pic_proc *, pic_value);
pic_value pic_apply_argv(pic_state *, struct pic_proc *, size_t, ...);
pic_value pic_trampoline(pic_state *, struct pic_proc *, pic_value);
struct pic_proc *pic_compile(pic_state *, pic_value);
pic_value pic_macroexpand(pic_state *, pic_value);
void pic_in_library(pic_state *, pic_value);
struct pic_lib *pic_make_library(pic_state *, pic_value);
struct pic_lib *pic_find_library(pic_state *, pic_value);
#define PIC_DEFLIBRARY_HELPER2(tmp1, tmp2, tmp3, spec) \
for (struct pic_lib *tmp1 = pic->lib, \
*tmp2 = (pic_make_library(pic, pic_parse(pic, spec)), \
pic_in_library(pic, pic_parse(pic, spec)), \
NULL); \
tmp3 < 1; \
(pic->lib = tmp1), ((void)tmp2), ++tmp3)
#define PIC_DEFLIBRARY_HELPER1(tmp1, tmp2, spec) \
for (int tmp1 = 0, tmp2 = 0; tmp1 < 1; ++tmp1) \
PIC_DEFLIBRARY_HELPER2(GENSYM(pic_deflib_tmp3__), \
GENSYM(pic_deflib_tmp4__), \
tmp2, spec)
#define pic_deflibrary(spec) \
PIC_DEFLIBRARY_HELPER1(GENSYM(pic_deflib_tmp1__), GENSYM(pic_deflib_tmp2__), spec)
void pic_import(pic_state *, pic_value);
void pic_export(pic_state *, pic_sym);
NORETURN void pic_abort(pic_state *, const char *);
NORETURN void pic_raise(pic_state *, struct pic_error *);
NORETURN void pic_error(pic_state *, const char *);
NORETURN void pic_errorf(pic_state *, const char *, ...);
void pic_warn(pic_state *, const char *);
const char *pic_errmsg(pic_state *);
pic_value pic_debug(pic_state *, pic_value);
pic_value pic_fdebug(pic_state *, pic_value, XFILE *);
#if defined(__cplusplus)
}
#endif
#endif