94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
#include "factor.h"
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/* the array is full of undefined data, and must be correctly filled before the
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next GC. */
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F_ARRAY* allot_array(CELL type, CELL capacity)
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{
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F_ARRAY *array;
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if(capacity < 0)
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general_error(ERROR_NEGATIVE_ARRAY_SIZE,tag_fixnum(capacity));
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array = allot_object(type,array_size(capacity));
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array->capacity = tag_fixnum(capacity);
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return array;
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}
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/* WARNING: fill must be an immediate type:
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either be F or a fixnum.
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if you want to use pass a pointer, you _must_ hit
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the write barrier manually with a write_barrier()
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call with the returned object. */
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F_ARRAY* array(CELL type, CELL capacity, CELL fill)
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{
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int i; F_ARRAY* array = allot_array(type, capacity);
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for(i = 0; i < capacity; i++)
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put(AREF(array,i),fill);
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return array;
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}
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void primitive_array(void)
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{
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CELL size = to_fixnum(dpop());
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maybe_gc(array_size(size));
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dpush(tag_object(array(ARRAY_TYPE,size,F)));
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}
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void primitive_tuple(void)
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{
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CELL size = to_fixnum(dpop());
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maybe_gc(array_size(size));
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dpush(tag_object(array(TUPLE_TYPE,size,F)));
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}
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void primitive_byte_array(void)
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{
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CELL size = to_fixnum(dpop());
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maybe_gc(array_size(size));
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dpush(tag_object(array(BYTE_ARRAY_TYPE,size,0)));
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}
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/* see note about fill in array() */
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F_ARRAY* resize_array(F_ARRAY* array, CELL capacity, CELL fill)
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{
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int i;
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F_ARRAY* new_array;
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CELL to_copy = array_capacity(array);
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if(capacity < to_copy)
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to_copy = capacity;
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new_array = allot_array(untag_header(array->header),capacity);
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memcpy(new_array + 1,array + 1,to_copy * CELLS);
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for(i = to_copy; i < capacity; i++)
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put(AREF(new_array,i),fill);
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return new_array;
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}
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void primitive_resize_array(void)
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{
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F_ARRAY* array; CELL capacity;
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maybe_gc(0);
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array = untag_array_fast(dpop());
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capacity = to_fixnum(dpop());
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dpush(tag_object(resize_array(array,capacity,F)));
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}
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void fixup_array(F_ARRAY* array)
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{
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int i = 0; CELL capacity = array_capacity(array);
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for(i = 0; i < capacity; i++)
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data_fixup((void*)AREF(array,i));
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}
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void collect_array(F_ARRAY* array)
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{
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int i = 0; CELL capacity = array_capacity(array);
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for(i = 0; i < capacity; i++)
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copy_handle((void*)AREF(array,i));
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}
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