224 lines
7.1 KiB
C
224 lines
7.1 KiB
C
/**
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* Copyright (c) 2012-2013 Yuichi Nishiwaki and other picrin contributors.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef PICRIN_H__
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#define PICRIN_H__
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#include <stddef.h>
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#include <stdbool.h>
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#include <setjmp.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <assert.h>
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#include "xhash/xhash.h"
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#include "xfile/xfile.h"
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#include "xrope/xrope.h"
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#if __STDC_VERSION__ >= 201112L
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# define NORETURN _Noreturn
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#elif __GNUC__ || __clang__
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# define NORETURN __attribute__((noreturn))
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#endif
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#define FALLTHROUGH ((void)0)
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#define UNUSED(v) ((void)(v))
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#define GENSYM2__(x,y) x##y
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#define GENSYM1__(x,y) GENSYM2__(x,y)
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#if defined(__COUNTER__)
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# define GENSYM(x) GENSYM1__(x,__COUNTER__)
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#else
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# define GENSYM(x) GENSYM1__(x,__LINE__)
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#endif
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#include "config.h"
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#include "picrin/value.h"
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struct pic_code;
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typedef struct {
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int argc, retc;
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struct pic_code *ip;
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pic_value *fp;
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struct pic_env *env;
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} pic_callinfo;
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struct pic_block {
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struct pic_block *prev;
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int depth;
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struct pic_proc *in, *out;
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unsigned refcnt;
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};
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typedef struct {
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int argc;
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char **argv, **envp;
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struct pic_block *blk;
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pic_value *sp;
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pic_value *stbase, *stend;
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pic_callinfo *ci;
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pic_callinfo *cibase, *ciend;
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struct pic_code *ip;
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struct pic_proc **rescue;
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size_t ridx, rlen;
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pic_sym sDEFINE, sLAMBDA, sIF, sBEGIN, sQUOTE, sSETBANG;
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pic_sym sQUASIQUOTE, sUNQUOTE, sUNQUOTE_SPLICING;
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pic_sym sDEFINE_SYNTAX, sDEFINE_MACRO;
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pic_sym sDEFINE_LIBRARY, sIMPORT, sEXPORT;
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pic_sym sCONS, sCAR, sCDR, sNILP;
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pic_sym sADD, sSUB, sMUL, sDIV, sMINUS;
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pic_sym sEQ, sLT, sLE, sGT, sGE, sNOT;
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xhash *syms; /* name to symbol */
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xhash *sym_names; /* symbol to name */
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int sym_cnt;
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int uniq_sym_cnt;
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xhash *global_tbl;
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pic_value *globals;
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size_t glen, gcapa;
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xhash *macros;
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pic_value lib_tbl;
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struct pic_lib *lib;
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jmp_buf *jmp;
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struct pic_error *err;
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struct pic_heap *heap;
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struct pic_object *arena[PIC_ARENA_SIZE];
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int arena_idx;
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pic_value *native_stack_start;
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} pic_state;
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typedef pic_value (*pic_func_t)(pic_state *);
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void *pic_alloc(pic_state *, size_t);
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#define pic_malloc(pic,size) pic_alloc(pic,size) /* obsoleted */
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void *pic_realloc(pic_state *, void *, size_t);
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void *pic_calloc(pic_state *, size_t, size_t);
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struct pic_object *pic_obj_alloc(pic_state *, size_t, enum pic_tt);
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struct pic_object *pic_obj_alloc_unsafe(pic_state *, size_t, enum pic_tt);
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void pic_free(pic_state *, void *);
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void pic_gc_run(pic_state *);
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void pic_gc_protect(pic_state *, pic_value);
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int pic_gc_arena_preserve(pic_state *);
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void pic_gc_arena_restore(pic_state *, int);
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pic_state *pic_open(int argc, char *argv[], char **envp);
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void pic_close(pic_state *);
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void pic_define(pic_state *, const char *, pic_value); /* automatic export */
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pic_value pic_ref(pic_state *, const char *);
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void pic_set(pic_state *, const char *, pic_value);
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#define pic_try \
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pic_try_helper__(GENSYM(pic_try_i__), GENSYM(pic_try_jmp__), GENSYM(pic_try_prev_jmp__))
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#define pic_try_helper__(i, here, prev_jmp) \
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for (int i = 0; ! i; ) \
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for (jmp_buf here, *prev_jmp = pic->jmp; ! i; ) \
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for (pic->jmp = &here; ! i++; pic->jmp = prev_jmp) \
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if (setjmp(here) == 0)
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#define pic_catch else
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struct pic_proc *pic_get_proc(pic_state *);
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int pic_get_args(pic_state *, const char *, ...);
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void pic_defun(pic_state *, const char *, pic_func_t);
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void pic_defmacro(pic_state *, const char *, struct pic_proc *);
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void pic_defvar(pic_state *, const char *, pic_value);
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bool pic_equal_p(pic_state *, pic_value, pic_value);
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pic_sym pic_intern(pic_state *, const char *, size_t);
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pic_sym pic_intern_cstr(pic_state *, const char *);
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const char *pic_symbol_name(pic_state *, pic_sym);
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pic_sym pic_gensym(pic_state *, pic_sym);
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bool pic_interned_p(pic_state *, pic_sym);
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char *pic_strdup(pic_state *, const char *);
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char *pic_strndup(pic_state *, const char *, size_t);
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pic_value pic_read(pic_state *, const char *);
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pic_list pic_parse_file(pic_state *, FILE *); /* #f for incomplete input */
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pic_list pic_parse_cstr(pic_state *, const char *);
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pic_value pic_load(pic_state *, const char *);
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pic_value pic_apply(pic_state *, struct pic_proc *, pic_value);
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pic_value pic_apply_argv(pic_state *, struct pic_proc *, size_t, ...);
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pic_value pic_apply_trampoline(pic_state *, struct pic_proc *, pic_value);
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pic_value pic_eval(pic_state *, pic_value);
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struct pic_proc *pic_compile(pic_state *, pic_value);
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pic_value pic_macroexpand(pic_state *, pic_value);
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void pic_in_library(pic_state *, pic_value);
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struct pic_lib *pic_make_library(pic_state *, pic_value);
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struct pic_lib *pic_find_library(pic_state *, pic_value);
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#define pic_deflibrary(spec) \
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pic_deflibrary_helper__(GENSYM(pic_deflib_i__), GENSYM(pic_deflib_prev_lib__), spec)
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#define pic_deflibrary_helper__(i, prev_lib, spec) \
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for (int i = 0; ! i; ) \
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for (struct pic_lib *prev_lib; ! i; ) \
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for ((prev_lib = pic->lib), pic_make_library(pic, pic_read(pic, spec)), pic_in_library(pic, pic_read(pic, spec)); ! i++; pic->lib = prev_lib)
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void pic_import(pic_state *, pic_value);
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void pic_export(pic_state *, pic_sym);
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NORETURN void pic_abort(pic_state *, const char *);
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NORETURN void pic_raise(pic_state *, struct pic_error *);
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NORETURN void pic_error(pic_state *, const char *); /* obsoleted */
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NORETURN void pic_errorf(pic_state *, const char *, ...);
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void pic_warn(pic_state *, const char *);
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const char *pic_errmsg(pic_state *);
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pic_value pic_write(pic_state *, pic_value); /* returns given obj */
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pic_value pic_fwrite(pic_state *, pic_value, xFILE *);
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void pic_printf(pic_state *, const char *, ...);
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pic_value pic_display(pic_state *, pic_value);
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pic_value pic_fdisplay(pic_state *, pic_value, xFILE *);
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/* obsoleted macros */
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#define pic_debug(pic,obj) pic_write(pic,obj)
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#define pic_fdebug(pic,obj,file) pic_fwrite(pic,obj,file)
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#if defined(__cplusplus)
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}
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#endif
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#endif
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