factor/vm/arrays.hpp

37 lines
778 B
C++
Executable File

namespace factor
{
inline cell array_nth(array *array, cell slot)
{
#ifdef FACTOR_DEBUG
FACTOR_ASSERT(slot < array_capacity(array));
FACTOR_ASSERT(array->type() == ARRAY_TYPE);
#endif
return array->data()[slot];
}
inline void factor_vm::set_array_nth(array *array, cell slot, cell value)
{
#ifdef FACTOR_DEBUG
FACTOR_ASSERT(slot < array_capacity(array));
FACTOR_ASSERT(array->type() == ARRAY_TYPE);
#endif
cell *slot_ptr = &array->data()[slot];
*slot_ptr = value;
write_barrier(slot_ptr);
}
struct growable_array {
cell count;
data_root<array> elements;
explicit growable_array(factor_vm *parent, cell capacity = 10) :
count(0), elements(parent->allot_array(capacity,false_object),parent) {}
void add(cell elt);
void append(array *elts);
void trim();
};
}