picrin/extlib/benz/state.c

454 lines
10 KiB
C
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/**
* See Copyright Notice in picrin.h
*/
#include "picrin.h"
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void
pic_add_feature(pic_state *pic, const char *feature)
{
pic_push(pic, pic_obj_value(pic_intern_cstr(pic, feature)), pic->features);
}
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void pic_init_undef(pic_state *);
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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 *);
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void pic_init_reg(pic_state *);
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extern const char pic_boot[][80];
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static void
pic_init_features(pic_state *pic)
{
pic_add_feature(pic, "picrin");
pic_add_feature(pic, "ieee-float");
#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
}
#define DONE pic_gc_arena_restore(pic, ai);
static void
pic_init_core(pic_state *pic)
{
pic_init_features(pic);
pic_deflibrary (pic, "(picrin base)") {
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size_t ai = pic_gc_arena_preserve(pic);
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pic_define_syntactic_keyword(pic, pic->lib->env, pic->sDEFINE, pic->rDEFINE);
pic_define_syntactic_keyword(pic, pic->lib->env, pic->sSETBANG, pic->rSETBANG);
pic_define_syntactic_keyword(pic, pic->lib->env, pic->sQUOTE, pic->rQUOTE);
pic_define_syntactic_keyword(pic, pic->lib->env, pic->sLAMBDA, pic->rLAMBDA);
pic_define_syntactic_keyword(pic, pic->lib->env, pic->sIF, pic->rIF);
pic_define_syntactic_keyword(pic, pic->lib->env, pic->sBEGIN, pic->rBEGIN);
pic_define_syntactic_keyword(pic, pic->lib->env, pic->sDEFINE_SYNTAX, pic->rDEFINE_SYNTAX);
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pic_init_undef(pic); DONE;
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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;
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pic_init_reg(pic); DONE;
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pic_load_cstr(pic, &pic_boot[0][0]);
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}
pic_import_library(pic, pic->PICRIN_BASE);
}
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pic_state *
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pic_open(int argc, char *argv[], char **envp, pic_allocf allocf)
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{
struct pic_port *pic_make_standard_port(pic_state *, xFILE *, short);
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char t;
pic_state *pic;
size_t ai;
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pic = allocf(NULL, sizeof(pic_state));
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if (! pic) {
goto EXIT_PIC;
}
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/* allocator */
pic->allocf = allocf;
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/* turn off GC */
pic->gc_enable = false;
/* jmp */
pic->jmp = NULL;
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/* root block */
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pic->cp = NULL;
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/* command line */
pic->argc = argc;
pic->argv = argv;
pic->envp = envp;
/* prepare VM stack */
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pic->stbase = pic->sp = allocf(NULL, PIC_STACK_SIZE * sizeof(pic_value));
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pic->stend = pic->stbase + PIC_STACK_SIZE;
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if (! pic->sp) {
goto EXIT_SP;
}
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/* callinfo */
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pic->cibase = pic->ci = allocf(NULL, PIC_STACK_SIZE * sizeof(pic_callinfo));
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pic->ciend = pic->cibase + PIC_STACK_SIZE;
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if (! pic->ci) {
goto EXIT_CI;
}
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/* exception handler */
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pic->xpbase = pic->xp = allocf(NULL, PIC_RESCUE_SIZE * sizeof(struct pic_proc *));
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pic->xpend = pic->xpbase + PIC_RESCUE_SIZE;
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if (! pic->xp) {
goto EXIT_XP;
}
/* GC arena */
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pic->arena = allocf(NULL, PIC_ARENA_SIZE * sizeof(struct pic_object *));
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pic->arena_size = PIC_ARENA_SIZE;
pic->arena_idx = 0;
if (! pic->arena) {
goto EXIT_ARENA;
}
/* trampoline iseq */
pic->iseq = allocf(NULL, 2 * sizeof(pic_code));
if (! pic->iseq) {
goto EXIT_ISEQ;
}
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/* memory heap */
pic->heap = pic_heap_open(pic);
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/* registries */
pic->regs = NULL;
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/* symbol table */
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xh_init_str(&pic->syms, sizeof(pic_sym *));
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/* global variables */
pic->globals = NULL;
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/* macros */
pic->macros = NULL;
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/* attributes */
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pic->attrs = NULL;
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/* features */
pic->features = pic_nil_value();
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/* libraries */
pic->libs = pic_nil_value();
pic->lib = NULL;
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/* raised error object */
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pic->err = pic_invalid_value();
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/* standard ports */
pic->xSTDIN = NULL;
pic->xSTDOUT = NULL;
pic->xSTDERR = NULL;
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/* parameter table */
pic->ptable = pic_nil_value();
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/* native stack marker */
pic->native_stack_start = &t;
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ai = pic_gc_arena_preserve(pic);
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#define S(slot,name) pic->slot = pic_intern_cstr(pic, name);
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S(sDEFINE, "define");
S(sLAMBDA, "lambda");
S(sIF, "if");
S(sBEGIN, "begin");
S(sSETBANG, "set!");
S(sQUOTE, "quote");
S(sQUASIQUOTE, "quasiquote");
S(sUNQUOTE, "unquote");
S(sUNQUOTE_SPLICING, "unquote-splicing");
S(sDEFINE_SYNTAX, "define-syntax");
S(sIMPORT, "import");
S(sEXPORT, "export");
S(sDEFINE_LIBRARY, "define-library");
S(sIN_LIBRARY, "in-library");
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S(sCOND_EXPAND, "cond-expand");
S(sAND, "and");
S(sOR, "or");
S(sELSE, "else");
S(sLIBRARY, "library");
S(sONLY, "only");
S(sRENAME, "rename");
S(sPREFIX, "prefix");
S(sEXCEPT, "except");
S(sCONS, "cons");
S(sCAR, "car");
S(sCDR, "cdr");
S(sNILP, "null?");
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S(sSYMBOLP, "symbol?");
S(sPAIRP, "pair?");
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S(sADD, "+");
S(sSUB, "-");
S(sMUL, "*");
S(sDIV, "/");
S(sMINUS, "minus");
S(sEQ, "=");
S(sLT, "<");
S(sLE, "<=");
S(sGT, ">");
S(sGE, ">=");
S(sNOT, "not");
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S(sREAD, "read");
S(sFILE, "file");
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S(sCALL, "call");
S(sTAILCALL, "tail-call");
S(sGREF, "gref");
S(sLREF, "lref");
S(sCREF, "cref");
S(sRETURN, "return");
S(sCALL_WITH_VALUES, "call-with-values");
S(sTAILCALL_WITH_VALUES, "tailcall-with-values");
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pic_gc_arena_restore(pic, ai);
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#define R(slot,name) pic->slot = pic_gensym(pic, pic_intern_cstr(pic, name));
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R(rDEFINE, "define");
R(rLAMBDA, "lambda");
R(rIF, "if");
R(rBEGIN, "begin");
R(rSETBANG, "set!");
R(rQUOTE, "quote");
R(rDEFINE_SYNTAX, "define-syntax");
R(rIMPORT, "import");
R(rEXPORT, "export");
R(rDEFINE_LIBRARY, "define-library");
R(rIN_LIBRARY, "in-library");
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R(rCOND_EXPAND, "cond-expand");
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R(rCONS, "cons");
R(rCAR, "car");
R(rCDR, "cdr");
R(rNILP, "null?");
R(rSYMBOLP, "symbol?");
R(rPAIRP, "pair?");
R(rADD, "+");
R(rSUB, "-");
R(rMUL, "*");
R(rDIV, "/");
R(rEQ, "=");
R(rLT, "<");
R(rLE, "<=");
R(rGT, ">");
R(rGE, ">=");
R(rNOT, "not");
R(rVALUES, "values");
R(rCALL_WITH_VALUES, "call-with-values");
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pic_gc_arena_restore(pic, ai);
/* root tables */
pic->globals = pic_make_dict(pic);
pic->macros = pic_make_dict(pic);
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pic->attrs = pic_make_reg(pic);
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/* root block */
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pic->cp = pic_malloc(pic, sizeof(pic_checkpoint));
pic->cp->prev = NULL;
pic->cp->depth = 0;
pic->cp->in = pic->cp->out = NULL;
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/* reader */
pic->reader = pic_reader_open(pic);
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/* standard I/O */
pic->xSTDIN = pic_make_standard_port(pic, xstdin, PIC_PORT_IN);
pic->xSTDOUT = pic_make_standard_port(pic, xstdout, PIC_PORT_OUT);
pic->xSTDERR = pic_make_standard_port(pic, xstderr, PIC_PORT_OUT);
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/* parameter table */
pic->ptable = pic_cons(pic, pic_obj_value(pic_make_dict(pic)), pic->ptable);
/* standard libraries */
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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;
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pic_gc_arena_restore(pic, ai);
/* turn on GC */
pic->gc_enable = true;
pic_init_core(pic);
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pic_gc_arena_restore(pic, ai);
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return pic;
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EXIT_ISEQ:
allocf(pic->arena, 0);
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EXIT_ARENA:
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allocf(pic->xp, 0);
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EXIT_XP:
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allocf(pic->ci, 0);
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EXIT_CI:
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allocf(pic->sp, 0);
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EXIT_SP:
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allocf(pic, 0);
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EXIT_PIC:
return NULL;
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}
void
pic_close(pic_state *pic)
{
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xh_entry *it;
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pic_allocf allocf = pic->allocf;
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/* invoke exit handlers */
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while (pic->cp) {
if (pic->cp->out) {
pic_apply0(pic, pic->cp->out);
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}
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pic->cp = pic->cp->prev;
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}
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/* free symbol names */
for (it = xh_begin(&pic->syms); it != NULL; it = xh_next(it)) {
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allocf(xh_key(it, char *), 0);
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}
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/* clear out root objects */
pic->sp = pic->stbase;
pic->ci = pic->cibase;
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pic->xp = pic->xpbase;
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pic->arena_idx = 0;
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pic->err = pic_invalid_value();
pic->globals = NULL;
pic->macros = NULL;
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pic->attrs = NULL;
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xh_clear(&pic->syms);
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pic->features = pic_nil_value();
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pic->libs = pic_nil_value();
/* free all heap objects */
pic_gc_run(pic);
/* free heaps */
pic_heap_close(pic, pic->heap);
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/* free reader struct */
pic_reader_close(pic, pic->reader);
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/* free runtime context */
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allocf(pic->stbase, 0);
allocf(pic->cibase, 0);
allocf(pic->xpbase, 0);
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/* free trampoline iseq */
allocf(pic->iseq, 0);
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/* free global stacks */
xh_destroy(&pic->syms);
/* free GC arena */
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allocf(pic->arena, 0);
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allocf(pic, 0);
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}