208 lines
6.8 KiB
C
208 lines
6.8 KiB
C
/*
|
|
* $Id: stx.c,v 1.23 2005-05-21 15:55:49 bacon Exp $
|
|
*/
|
|
|
|
#include <xp/stx/stx.h>
|
|
#include <xp/stx/memory.h>
|
|
#include <xp/stx/object.h>
|
|
#include <xp/stx/hash.h>
|
|
#include <xp/stx/symbol.h>
|
|
#include <xp/stx/misc.h>
|
|
|
|
static void __create_bootstrapping_objects (xp_stx_t* stx);
|
|
|
|
xp_stx_t* xp_stx_open (xp_stx_t* stx, xp_stx_word_t capacity)
|
|
{
|
|
if (stx == XP_NULL) {
|
|
stx = (xp_stx_t*)xp_stx_malloc (xp_sizeof(stx));
|
|
if (stx == XP_NULL) return XP_NULL;
|
|
stx->__malloced = xp_true;
|
|
}
|
|
else stx->__malloced = xp_false;
|
|
|
|
if (xp_stx_memory_open (&stx->memory, capacity) == XP_NULL) {
|
|
if (stx->__malloced) xp_stx_free (stx);
|
|
return XP_NULL;
|
|
}
|
|
|
|
stx->nil = XP_STX_NIL;
|
|
stx->true = XP_STX_TRUE;
|
|
stx->false = XP_STX_FALSE;
|
|
|
|
stx->symbol_table = XP_STX_NIL;
|
|
stx->smalltalk = XP_STX_NIL;
|
|
|
|
stx->class_symlink = XP_STX_NIL;
|
|
stx->class_symbol = XP_STX_NIL;
|
|
stx->class_metaclass = XP_STX_NIL;
|
|
stx->class_pairlink = XP_STX_NIL;
|
|
|
|
stx->class_method = XP_STX_NIL;
|
|
stx->class_context = XP_STX_NIL;
|
|
|
|
stx->__wantabort = xp_false;
|
|
return stx;
|
|
}
|
|
|
|
void xp_stx_close (xp_stx_t* stx)
|
|
{
|
|
xp_stx_memory_close (&stx->memory);
|
|
if (stx->__malloced) xp_stx_free (stx);
|
|
}
|
|
|
|
int xp_stx_bootstrap (xp_stx_t* stx)
|
|
{
|
|
xp_stx_word_t symbol_Smalltalk;
|
|
xp_stx_word_t class_Object, class_Class;
|
|
xp_stx_word_t tmp;
|
|
|
|
__create_bootstrapping_objects (stx);
|
|
|
|
/* more initialization */
|
|
XP_STX_CLASS(stx,stx->symbol_table) =
|
|
xp_stx_new_class (stx, XP_STX_TEXT("SymbolTable"));
|
|
XP_STX_CLASS(stx,stx->smalltalk) =
|
|
xp_stx_new_class (stx, XP_STX_TEXT("SystemDictionary"));
|
|
|
|
symbol_Smalltalk =
|
|
xp_stx_new_symbol (stx, XP_STX_TEXT("Smalltalk"));
|
|
xp_stx_hash_insert (stx, stx->smalltalk,
|
|
xp_stx_hash_char_object(stx,symbol_Smalltalk),
|
|
symbol_Smalltalk, stx->smalltalk);
|
|
|
|
/* create #nil, #true, #false */
|
|
xp_stx_new_symbol (stx, XP_STX_TEXT("nil"));
|
|
xp_stx_new_symbol (stx, XP_STX_TEXT("true"));
|
|
xp_stx_new_symbol (stx, XP_STX_TEXT("false"));
|
|
|
|
/* nil setClass: UndefinedObject */
|
|
XP_STX_CLASS(stx,stx->nil) =
|
|
xp_stx_new_class (stx, XP_STX_TEXT("UndefinedObject"));
|
|
/* true setClass: True */
|
|
XP_STX_CLASS(stx,stx->true) =
|
|
xp_stx_new_class (stx, XP_STX_TEXT("True"));
|
|
/* fales setClass: False */
|
|
XP_STX_CLASS(stx,stx->false) =
|
|
xp_stx_new_class (stx, XP_STX_TEXT("False"));
|
|
|
|
/* weave the class-metaclass chain */
|
|
class_Object = xp_stx_new_class (stx, XP_STX_TEXT("Object"));
|
|
class_Class = xp_stx_new_class (stx, XP_STX_TEXT("Class"));
|
|
tmp = XP_STX_CLASS(stx,class_Object);
|
|
XP_STX_AT(stx,tmp,XP_STX_CLASS_SUPERCLASS) = class_Class;
|
|
|
|
/* useful classes */
|
|
stx->class_method = xp_stx_new_class (stx, XP_STX_TEXT("Method"));
|
|
stx->class_context = xp_stx_new_class (stx, XP_STX_TEXT("Context"));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __create_bootstrapping_objects (xp_stx_t* stx)
|
|
{
|
|
xp_stx_word_t class_SymlinkMeta;
|
|
xp_stx_word_t class_SymbolMeta;
|
|
xp_stx_word_t class_MetaclassMeta;
|
|
xp_stx_word_t class_PairlinkMeta;
|
|
xp_stx_word_t symbol_Symlink;
|
|
xp_stx_word_t symbol_Symbol;
|
|
xp_stx_word_t symbol_Metaclass;
|
|
xp_stx_word_t symbol_Pairlink;
|
|
|
|
/* allocate three keyword objects */
|
|
stx->nil = xp_stx_alloc_object (stx, 0);
|
|
stx->true = xp_stx_alloc_object (stx, 0);
|
|
stx->false = xp_stx_alloc_object (stx, 0);
|
|
|
|
xp_stx_assert (stx->nil == XP_STX_NIL);
|
|
xp_stx_assert (stx->true == XP_STX_TRUE);
|
|
xp_stx_assert (stx->false == XP_STX_FALSE);
|
|
|
|
/* symbol table & system dictionary */
|
|
/* TODO: symbol table and dictionary size */
|
|
stx->symbol_table = xp_stx_alloc_object (stx, 1000);
|
|
stx->smalltalk = xp_stx_alloc_object (stx, 2000);
|
|
|
|
stx->class_symlink = /* Symlink */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
stx->class_symbol = /* Symbol */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
stx->class_metaclass = /* Metaclass */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
stx->class_pairlink = /* Pairlink */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
|
|
class_SymlinkMeta = /* Symlink class */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
class_SymbolMeta = /* Symbol class */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
class_MetaclassMeta = /* Metaclass class */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
class_PairlinkMeta = /* Pairlink class */
|
|
xp_stx_alloc_object(stx,XP_STX_CLASS_SIZE);
|
|
|
|
/* (Symlink class) setClass: Metaclass */
|
|
XP_STX_CLASS(stx,class_SymlinkMeta) = stx->class_metaclass;
|
|
/* (Symbol class) setClass: Metaclass */
|
|
XP_STX_CLASS(stx,class_SymbolMeta) = stx->class_metaclass;
|
|
/* (Metaclass class) setClass: Metaclass */
|
|
XP_STX_CLASS(stx,class_MetaclassMeta) = stx->class_metaclass;
|
|
/* (Pairlink class) setClass: Metaclass */
|
|
XP_STX_CLASS(stx,class_PairlinkMeta) = stx->class_metaclass;
|
|
|
|
/* Symlink setClass: (Symlink class) */
|
|
XP_STX_CLASS(stx,stx->class_symlink) = class_SymlinkMeta;
|
|
/* Symbol setClass: (Symbol class) */
|
|
XP_STX_CLASS(stx,stx->class_symbol) = class_SymbolMeta;
|
|
/* Metaclass setClass: (Metaclass class) */
|
|
XP_STX_CLASS(stx,stx->class_metaclass) = class_MetaclassMeta;
|
|
/* Pairlink setClass: (Pairlink class) */
|
|
XP_STX_CLASS(stx,stx->class_pairlink) = class_PairlinkMeta;
|
|
|
|
/* (Symlink class) setSpec: CLASS_SIZE */
|
|
XP_STX_AT(stx,class_SymlinkMeta,XP_STX_CLASS_SPEC) =
|
|
XP_STX_TO_SMALLINT(XP_STX_CLASS_SIZE);
|
|
/* (Symbol class) setSpec: CLASS_SIZE */
|
|
XP_STX_AT(stx,class_SymbolMeta,XP_STX_CLASS_SPEC) =
|
|
XP_STX_TO_SMALLINT(XP_STX_CLASS_SIZE);
|
|
/* (Metaclass class) setSpec: CLASS_SIZE */
|
|
XP_STX_AT(stx,class_MetaclassMeta,XP_STX_CLASS_SPEC) =
|
|
XP_STX_TO_SMALLINT(XP_STX_CLASS_SIZE);
|
|
/* (Pairlink class) setSpec: CLASS_SIZE */
|
|
XP_STX_AT(stx,class_PairlinkMeta,XP_STX_CLASS_SPEC) =
|
|
XP_STX_TO_SMALLINT(XP_STX_CLASS_SIZE);
|
|
|
|
/* #Symlink */
|
|
symbol_Symlink = xp_stx_new_symbol (stx, XP_STX_TEXT("Symlink"));
|
|
/* #Symbol */
|
|
symbol_Symbol = xp_stx_new_symbol (stx, XP_STX_TEXT("Symbol"));
|
|
/* #Metaclass */
|
|
symbol_Metaclass = xp_stx_new_symbol (stx, XP_STX_TEXT("Metaclass"));
|
|
/* #Pairlink */
|
|
symbol_Pairlink = xp_stx_new_symbol (stx, XP_STX_TEXT("Pairlink"));
|
|
|
|
/* Symlink setName: #Symlink */
|
|
XP_STX_AT(stx,stx->class_symlink,XP_STX_CLASS_NAME) = symbol_Symlink;
|
|
/* Symbol setName: #Symbol */
|
|
XP_STX_AT(stx,stx->class_symbol,XP_STX_CLASS_NAME) = symbol_Symbol;
|
|
/* Metaclass setName: #Metaclass */
|
|
XP_STX_AT(stx,stx->class_metaclass,XP_STX_CLASS_NAME) = symbol_Metaclass;
|
|
/* Pairlink setName: #Pairlink */
|
|
XP_STX_AT(stx,stx->class_pairlink,XP_STX_CLASS_NAME) = symbol_Pairlink;
|
|
|
|
/* register class names into the system dictionary */
|
|
xp_stx_hash_insert (stx, stx->smalltalk,
|
|
xp_stx_hash_char_object(stx, symbol_Symlink),
|
|
symbol_Symlink, stx->class_symlink);
|
|
xp_stx_hash_insert (stx, stx->smalltalk,
|
|
xp_stx_hash_char_object(stx, symbol_Symbol),
|
|
symbol_Symbol, stx->class_symbol);
|
|
xp_stx_hash_insert (stx, stx->smalltalk,
|
|
xp_stx_hash_char_object(stx, symbol_Metaclass),
|
|
symbol_Metaclass, stx->class_metaclass);
|
|
xp_stx_hash_insert (stx, stx->smalltalk,
|
|
xp_stx_hash_char_object(stx, symbol_Pairlink),
|
|
symbol_Pairlink, stx->class_pairlink);
|
|
}
|
|
|