factor/native/types.c

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C
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#include "factor.h"
CELL object_size(CELL pointer)
{
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CELL size;
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switch(TAG(pointer))
{
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case FIXNUM_TYPE:
size = 0;
break;
case BIGNUM_TYPE:
size = ASIZE(UNTAG(pointer));
break;
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case CONS_TYPE:
size = sizeof(F_CONS);
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break;
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case RATIO_TYPE:
size = sizeof(F_RATIO);
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break;
case FLOAT_TYPE:
size = sizeof(F_FLOAT);
break;
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case COMPLEX_TYPE:
size = sizeof(F_COMPLEX);
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break;
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case OBJECT_TYPE:
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size = untagged_object_size(UNTAG(pointer));
break;
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default:
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critical_error("Cannot determine size",pointer);
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size = 0; /* Can't happen */
break;
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}
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return align8(size);
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}
CELL untagged_object_size(CELL pointer)
{
CELL size;
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if(pointer == F)
return 0;
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switch(untag_header(get(pointer)))
{
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case WORD_TYPE:
size = sizeof(F_WORD);
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break;
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case T_TYPE:
size = CELLS * 2;
break;
case ARRAY_TYPE:
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case BIGNUM_TYPE:
case TUPLE_TYPE:
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size = ASIZE(pointer);
break;
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case HASHTABLE_TYPE:
size = sizeof(F_HASHTABLE);
break;
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case VECTOR_TYPE:
size = sizeof(F_VECTOR);
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break;
case STRING_TYPE:
size = SSIZE(pointer);
break;
case SBUF_TYPE:
size = sizeof(F_SBUF);
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break;
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case FLOAT_TYPE:
size = sizeof(F_FLOAT);
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break;
case PORT_TYPE:
size = sizeof(F_PORT);
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break;
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case DLL_TYPE:
size = sizeof(DLL);
break;
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case ALIEN_TYPE:
size = sizeof(ALIEN);
break;
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default:
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critical_error("Cannot determine size",pointer);
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size = -1;/* can't happen */
break;
}
return align8(size);
}
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void primitive_type(void)
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{
drepl(tag_fixnum(type_of(dpeek())));
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}
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#define SLOT(obj,slot) UNTAG(obj) + slot * CELLS
void primitive_slot(void)
{
F_FIXNUM slot = untag_fixnum_fast(dpop());
CELL obj = dpop();
dpush(get(SLOT(obj,slot)));
}
void primitive_set_slot(void)
{
F_FIXNUM slot = untag_fixnum_fast(dpop());
CELL obj = dpop();
CELL value = dpop();
put(SLOT(obj,slot),value);
}
void primitive_integer_slot(void)
{
F_FIXNUM slot = untag_fixnum_fast(dpop());
CELL obj = dpop();
dpush(tag_integer(get(SLOT(obj,slot))));
}
void primitive_set_integer_slot(void)
{
F_FIXNUM slot = untag_fixnum_fast(dpop());
CELL obj = dpop();
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F_FIXNUM value = to_fixnum(dpop());
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put(SLOT(obj,slot),value);
}