6 array* factor_vm::allot_array(cell capacity, cell fill_) {
7 data_root<object> fill(fill_, this);
8 array* new_array = allot_uninitialized_array<array>(capacity);
9 memset_cell(new_array->data(), fill.value(), capacity * sizeof(cell));
13 /* Allocates memory */
14 void factor_vm::primitive_array() {
15 cell fill = ctx->pop();
16 cell capacity = unbox_array_size();
17 array* new_array = allot_array(capacity, fill);
18 ctx->push(tag<array>(new_array));
21 /* Allocates memory */
22 cell factor_vm::allot_array_4(cell v1_, cell v2_, cell v3_, cell v4_) {
23 data_root<object> v1(v1_, this);
24 data_root<object> v2(v2_, this);
25 data_root<object> v3(v3_, this);
26 data_root<object> v4(v4_, this);
27 data_root<array> a(allot_uninitialized_array<array>(4), this);
28 set_array_nth(a.untagged(), 0, v1.value());
29 set_array_nth(a.untagged(), 1, v2.value());
30 set_array_nth(a.untagged(), 2, v3.value());
31 set_array_nth(a.untagged(), 3, v4.value());
35 /* Allocates memory */
36 void factor_vm::primitive_resize_array() {
37 data_root<array> a(ctx->pop(), this);
39 cell capacity = unbox_array_size();
40 ctx->push(tag<array>(reallot_array(a.untagged(), capacity)));
43 /* Allocates memory */
44 cell factor_vm::std_vector_to_array(std::vector<cell>& elements) {
45 cell element_count = elements.size();
46 data_roots.push_back(data_root_range(&elements[0], element_count));
48 tagged<array> objects(allot_uninitialized_array<array>(element_count));
49 memcpy(objects->data(), &elements[0], element_count * sizeof(cell));
51 data_roots.pop_back();
53 return objects.value();
56 /* Allocates memory */
57 void growable_array::add(cell elt_) {
58 factor_vm* parent = elements.parent;
59 data_root<object> elt(elt_, parent);
60 if (count == array_capacity(elements.untagged()))
61 elements = parent->reallot_array(elements.untagged(), count * 2);
63 parent->set_array_nth(elements.untagged(), count++, elt.value());
66 /* Allocates memory */
67 void growable_array::append(array* elts_) {
68 factor_vm* parent = elements.parent;
69 data_root<array> elts(elts_, parent);
70 cell capacity = array_capacity(elts.untagged());
71 if (count + capacity > array_capacity(elements.untagged())) {
73 parent->reallot_array(elements.untagged(), (count + capacity) * 2);
76 for (cell index = 0; index < capacity; index++)
77 parent->set_array_nth(elements.untagged(), count++,
78 array_nth(elts.untagged(), index));
81 /* Allocates memory */
82 void growable_array::trim() {
83 factor_vm* parent = elements.parent;
84 elements = parent->reallot_array(elements.untagged(), count);