picrin/extlib/benz/state.c

510 lines
12 KiB
C

/**
* See Copyright Notice in picrin.h
*/
#include "picrin.h"
void
pic_set_argv(pic_state *pic, int argc, char *argv[], char **envp)
{
pic->argc = argc;
pic->argv = argv;
pic->envp = envp;
}
void
pic_add_feature(pic_state *pic, const char *feature)
{
pic_push(pic, pic_obj_value(pic_intern(pic, feature)), pic->features);
}
void pic_init_bool(pic_state *);
void pic_init_pair(pic_state *);
void pic_init_port(pic_state *);
void pic_init_number(pic_state *);
void pic_init_proc(pic_state *);
void pic_init_symbol(pic_state *);
void pic_init_vector(pic_state *);
void pic_init_blob(pic_state *);
void pic_init_cont(pic_state *);
void pic_init_char(pic_state *);
void pic_init_error(pic_state *);
void pic_init_str(pic_state *);
void pic_init_macro(pic_state *);
void pic_init_var(pic_state *);
void pic_init_write(pic_state *);
void pic_init_read(pic_state *);
void pic_init_dict(pic_state *);
void pic_init_record(pic_state *);
void pic_init_eval(pic_state *);
void pic_init_lib(pic_state *);
void pic_init_attr(pic_state *);
void pic_init_reg(pic_state *);
extern const char pic_boot[][80];
static void
pic_init_features(pic_state *pic)
{
pic_add_feature(pic, "picrin");
#if __STDC_IEC_559__
pic_add_feature(pic, "ieee-float");
#endif
#if _POSIX_SOURCE
pic_add_feature(pic, "posix");
#endif
#if _WIN32
pic_add_feature(pic, "windows");
#endif
#if __unix__
pic_add_feature(pic, "unix");
#endif
#if __gnu_linux__
pic_add_feature(pic, "gnu-linux");
#endif
#if __FreeBSD__
pic_add_feature(pic, "freebsd");
#endif
#if __i386__
pic_add_feature(pic, "i386");
#elif __x86_64__
pic_add_feature(pic, "x86-64");
#elif __ppc__
pic_add_feature(pic, "ppc");
#elif __sparc__
pic_add_feature(pic, "sparc");
#endif
#if __ILP32__
pic_add_feature(pic, "ilp32");
#elif __LP64__
pic_add_feature(pic, "lp64");
#endif
#if defined(__BYTE_ORDER__)
# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
pic_add_feature(pic, "little-endian");
# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
pic_add_feature(pic, "big-endian");
# endif
#else
# if __LITTLE_ENDIAN__
pic_add_feature(pic, "little-endian");
# elif __BIG_ENDIAN__
pic_add_feature(pic, "big-endian");
# endif
#endif
}
static pic_value
pic_features(pic_state *pic)
{
pic_get_args(pic, "");
return pic->features;
}
#define DONE pic_gc_arena_restore(pic, ai);
#define define_builtin_syntax(uid, name) \
pic_put_variable(pic, pic->lib->env, pic_obj_value(pic_intern(pic, name)), uid)
#define VM(uid, name) \
pic_put_variable(pic, pic->lib->env, pic_obj_value(pic_intern(pic, name)), uid)
#define VM3(name) \
pic->c##name = pic_vm_gref_slot(pic, pic->u##name);
#define VM2(proc, name) \
proc = pic_ref(pic, pic->lib, name)
static void
pic_init_core(pic_state *pic)
{
struct pic_box *pic_vm_gref_slot(pic_state *, pic_sym *);
pic_init_features(pic);
pic_deflibrary (pic, "(picrin base)") {
size_t ai = pic_gc_arena_preserve(pic);
define_builtin_syntax(pic->uDEFINE, "builtin:define");
define_builtin_syntax(pic->uSETBANG, "builtin:set!");
define_builtin_syntax(pic->uQUOTE, "builtin:quote");
define_builtin_syntax(pic->uLAMBDA, "builtin:lambda");
define_builtin_syntax(pic->uIF, "builtin:if");
define_builtin_syntax(pic->uBEGIN, "builtin:begin");
define_builtin_syntax(pic->uDEFINE_MACRO, "builtin:define-macro");
pic_defun(pic, "features", pic_features);
VM(pic->uCONS, "cons");
VM(pic->uCAR, "car");
VM(pic->uCDR, "cdr");
VM(pic->uNILP, "null?");
VM(pic->uSYMBOLP, "symbol?");
VM(pic->uPAIRP, "pair?");
VM(pic->uNOT, "not");
VM(pic->uADD, "+");
VM(pic->uSUB, "-");
VM(pic->uMUL, "*");
VM(pic->uDIV, "/");
VM(pic->uEQ, "=");
VM(pic->uLT, "<");
VM(pic->uLE, "<=");
VM(pic->uGT, ">");
VM(pic->uGE, ">=");
pic_init_bool(pic); DONE;
pic_init_pair(pic); DONE;
pic_init_port(pic); DONE;
pic_init_number(pic); DONE;
pic_init_proc(pic); DONE;
pic_init_symbol(pic); DONE;
pic_init_vector(pic); DONE;
pic_init_blob(pic); DONE;
pic_init_cont(pic); DONE;
pic_init_char(pic); DONE;
pic_init_error(pic); DONE;
pic_init_str(pic); DONE;
pic_init_macro(pic); DONE;
pic_init_var(pic); DONE;
pic_init_write(pic); DONE;
pic_init_read(pic); DONE;
pic_init_dict(pic); DONE;
pic_init_record(pic); DONE;
pic_init_eval(pic); DONE;
pic_init_lib(pic); DONE;
pic_init_attr(pic); DONE;
pic_init_reg(pic); DONE;
VM3(CONS);
VM3(CAR);
VM3(CDR);
VM3(NILP);
VM3(SYMBOLP);
VM3(PAIRP);
VM3(NOT);
VM3(ADD);
VM3(SUB);
VM3(MUL);
VM3(DIV);
VM3(EQ);
VM3(LT);
VM3(LE);
VM3(GT);
VM3(GE);
VM2(pic->pCONS, "cons");
VM2(pic->pCAR, "car");
VM2(pic->pCDR, "cdr");
VM2(pic->pNILP, "null?");
VM2(pic->pSYMBOLP, "symbol?");
VM2(pic->pPAIRP, "pair?");
VM2(pic->pNOT, "not");
VM2(pic->pADD, "+");
VM2(pic->pSUB, "-");
VM2(pic->pMUL, "*");
VM2(pic->pDIV, "/");
VM2(pic->pEQ, "=");
VM2(pic->pLT, "<");
VM2(pic->pLE, "<=");
VM2(pic->pGT, ">");
VM2(pic->pGE, ">=");
pic_try {
pic_load_cstr(pic, &pic_boot[0][0]);
}
pic_catch {
pic_print_backtrace(pic, xstdout);
pic_panic(pic, "");
}
}
}
pic_state *
pic_open(pic_allocf allocf, void *userdata)
{
struct pic_port *pic_make_standard_port(pic_state *, xFILE *, short);
char t;
pic_state *pic;
size_t ai;
pic = allocf(userdata, NULL, sizeof(pic_state));
if (! pic) {
goto EXIT_PIC;
}
/* allocator */
pic->allocf = allocf;
/* user data */
pic->userdata = userdata;
/* turn off GC */
pic->gc_enable = false;
/* continuation chain */
pic->cc = NULL;
pic->ccnt = 0;
/* root block */
pic->cp = NULL;
/* command line */
pic->argc = 0;
pic->argv = NULL;
pic->envp = NULL;
/* prepare VM stack */
pic->stbase = pic->sp = allocf(userdata, NULL, PIC_STACK_SIZE * sizeof(pic_value));
pic->stend = pic->stbase + PIC_STACK_SIZE;
if (! pic->sp) {
goto EXIT_SP;
}
/* callinfo */
pic->cibase = pic->ci = allocf(userdata, NULL, PIC_STACK_SIZE * sizeof(pic_callinfo));
pic->ciend = pic->cibase + PIC_STACK_SIZE;
if (! pic->ci) {
goto EXIT_CI;
}
/* exception handler */
pic->xpbase = pic->xp = allocf(userdata, NULL, PIC_RESCUE_SIZE * sizeof(struct pic_proc *));
pic->xpend = pic->xpbase + PIC_RESCUE_SIZE;
if (! pic->xp) {
goto EXIT_XP;
}
/* GC arena */
pic->arena = allocf(userdata, NULL, PIC_ARENA_SIZE * sizeof(struct pic_object *));
pic->arena_size = PIC_ARENA_SIZE;
pic->arena_idx = 0;
if (! pic->arena) {
goto EXIT_ARENA;
}
/* memory heap */
pic->heap = pic_heap_open(pic);
/* symbol table */
kh_init(s, &pic->syms);
/* unique symbol count */
pic->ucnt = 0;
/* global variables */
pic->globals = NULL;
/* macros */
pic->macros = NULL;
/* attributes */
pic->attrs = NULL;
/* features */
pic->features = pic_nil_value();
/* libraries */
pic->libs = pic_nil_value();
pic->lib = NULL;
/* raised error object */
pic->err = pic_invalid_value();
/* file pool */
memset(pic->files, 0, sizeof pic->files);
/* parameter table */
pic->ptable = pic_nil_value();
/* native stack marker */
pic->native_stack_start = &t;
ai = pic_gc_arena_preserve(pic);
#define S(slot,name) pic->slot = pic_intern(pic, name)
S(sQUOTE, "quote");
S(sQUASIQUOTE, "quasiquote");
S(sUNQUOTE, "unquote");
S(sUNQUOTE_SPLICING, "unquote-splicing");
S(sSYNTAX_QUOTE, "syntax-quote");
S(sSYNTAX_QUASIQUOTE, "syntax-quasiquote");
S(sSYNTAX_UNQUOTE, "syntax-unquote");
S(sSYNTAX_UNQUOTE_SPLICING, "syntax-unquote-splicing");
S(sIMPORT, "import");
S(sEXPORT, "export");
S(sDEFINE_LIBRARY, "define-library");
S(sCOND_EXPAND, "cond-expand");
pic_gc_arena_restore(pic, ai);
#define U(slot,name) pic->slot = pic_uniq(pic, pic_obj_value(pic_intern(pic, name)))
U(uDEFINE, "define");
U(uLAMBDA, "lambda");
U(uIF, "if");
U(uBEGIN, "begin");
U(uSETBANG, "set!");
U(uQUOTE, "quote");
U(uDEFINE_MACRO, "define-macro");
U(uIMPORT, "import");
U(uEXPORT, "export");
U(uDEFINE_LIBRARY, "define-library");
U(uCOND_EXPAND, "cond-expand");
U(uCONS, "cons");
U(uCAR, "car");
U(uCDR, "cdr");
U(uNILP, "null?");
U(uSYMBOLP, "symbol?");
U(uPAIRP, "pair?");
U(uADD, "+");
U(uSUB, "-");
U(uMUL, "*");
U(uDIV, "/");
U(uEQ, "=");
U(uLT, "<");
U(uLE, "<=");
U(uGT, ">");
U(uGE, ">=");
U(uNOT, "not");
pic_gc_arena_restore(pic, ai);
/* system procedures */
pic->pCONS = pic_invalid_value();
pic->pCAR = pic_invalid_value();
pic->pCDR = pic_invalid_value();
pic->pNILP = pic_invalid_value();
pic->pSYMBOLP = pic_invalid_value();
pic->pPAIRP = pic_invalid_value();
pic->pNOT = pic_invalid_value();
pic->pADD = pic_invalid_value();
pic->pSUB = pic_invalid_value();
pic->pMUL = pic_invalid_value();
pic->pDIV = pic_invalid_value();
pic->pEQ = pic_invalid_value();
pic->pLT = pic_invalid_value();
pic->pLE = pic_invalid_value();
pic->pGT = pic_invalid_value();
pic->pGE = pic_invalid_value();
/* root tables */
pic->globals = pic_make_reg(pic);
pic->macros = pic_make_reg(pic);
pic->attrs = pic_make_reg(pic);
/* root block */
pic->cp = (pic_checkpoint *)pic_obj_alloc(pic, sizeof(pic_checkpoint), PIC_TT_CP);
pic->cp->prev = NULL;
pic->cp->depth = 0;
pic->cp->in = pic->cp->out = NULL;
/* reader */
pic_reader_init(pic);
/* parameter table */
pic->ptable = pic_cons(pic, pic_obj_value(pic_make_reg(pic)), pic->ptable);
/* standard libraries */
pic->PICRIN_BASE = pic_make_library(pic, pic_read_cstr(pic, "(picrin base)"));
pic->PICRIN_USER = pic_make_library(pic, pic_read_cstr(pic, "(picrin user)"));
pic->lib = pic->PICRIN_USER;
pic->prev_lib = NULL;
pic_gc_arena_restore(pic, ai);
/* turn on GC */
pic->gc_enable = true;
pic->cCONS = pic_box(pic, pic_invalid_value());
pic->cCAR = pic_box(pic, pic_invalid_value());
pic->cCDR = pic_box(pic, pic_invalid_value());
pic->cNILP = pic_box(pic, pic_invalid_value());
pic->cSYMBOLP = pic_box(pic, pic_invalid_value());
pic->cPAIRP = pic_box(pic, pic_invalid_value());
pic->cNOT = pic_box(pic, pic_invalid_value());
pic->cADD = pic_box(pic, pic_invalid_value());
pic->cSUB = pic_box(pic, pic_invalid_value());
pic->cMUL = pic_box(pic, pic_invalid_value());
pic->cDIV = pic_box(pic, pic_invalid_value());
pic->cEQ = pic_box(pic, pic_invalid_value());
pic->cLT = pic_box(pic, pic_invalid_value());
pic->cLE = pic_box(pic, pic_invalid_value());
pic->cGT = pic_box(pic, pic_invalid_value());
pic->cGE = pic_box(pic, pic_invalid_value());
pic_init_core(pic);
pic_gc_arena_restore(pic, ai);
return pic;
EXIT_ARENA:
allocf(userdata, pic->xp, 0);
EXIT_XP:
allocf(userdata, pic->ci, 0);
EXIT_CI:
allocf(userdata, pic->sp, 0);
EXIT_SP:
allocf(userdata, pic, 0);
EXIT_PIC:
return NULL;
}
void
pic_close(pic_state *pic)
{
khash_t(s) *h = &pic->syms;
pic_allocf allocf = pic->allocf;
/* clear out root objects */
pic->sp = pic->stbase;
pic->ci = pic->cibase;
pic->xp = pic->xpbase;
pic->arena_idx = 0;
pic->err = pic_invalid_value();
pic->globals = NULL;
pic->macros = NULL;
pic->attrs = NULL;
pic->features = pic_nil_value();
pic->libs = pic_nil_value();
/* free all heap objects */
pic_gc_run(pic);
/* flush all xfiles */
xfflush(pic, NULL);
/* free heaps */
pic_heap_close(pic, pic->heap);
/* free reader struct */
pic_reader_destroy(pic);
/* free runtime context */
allocf(pic->userdata, pic->stbase, 0);
allocf(pic->userdata, pic->cibase, 0);
allocf(pic->userdata, pic->xpbase, 0);
/* free global stacks */
kh_destroy(s, h);
/* free GC arena */
allocf(pic->userdata, pic->arena, 0);
allocf(pic->userdata, pic, 0);
}