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VM: Refactor generic_arrays.hpp to Factor style

db4
Erik Charlebois 2013-05-11 22:04:22 -04:00
parent 34d04b9306
commit 4ea2e9ed06
1 changed files with 34 additions and 41 deletions
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75
vm/generic_arrays.hpp
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@ -1,64 +1,57 @@
namespace factor
{
namespace factor {
template<typename Array> cell array_capacity(const Array *array)
{
template <typename Array> cell array_capacity(const Array* array) {
#ifdef FACTOR_DEBUG
FACTOR_ASSERT(array->type() == Array::type_number);
FACTOR_ASSERT(array->type() == Array::type_number);
#endif
return array->capacity >> TAG_BITS;
return array->capacity >> TAG_BITS;
}
template<typename Array> cell array_size(cell capacity)
{
return sizeof(Array) + capacity * Array::element_size;
template <typename Array> cell array_size(cell capacity) {
return sizeof(Array) + capacity * Array::element_size;
}
template<typename Array> cell array_size(Array *array)
{
return array_size<Array>(array_capacity(array));
template <typename Array> cell array_size(Array* array) {
return array_size<Array>(array_capacity(array));
}
/* Allocates memory */
template<typename Array> Array *factor_vm::allot_uninitialized_array(cell capacity)
{
Array *array = allot<Array>(array_size<Array>(capacity));
array->capacity = tag_fixnum(capacity);
return array;
template <typename Array>
Array* factor_vm::allot_uninitialized_array(cell capacity) {
Array* array = allot<Array>(array_size<Array>(capacity));
array->capacity = tag_fixnum(capacity);
return array;
}
template<typename Array> bool factor_vm::reallot_array_in_place_p(Array *array, cell capacity)
{
return nursery.contains_p(array) && capacity <= array_capacity(array);
template <typename Array>
bool factor_vm::reallot_array_in_place_p(Array* array, cell capacity) {
return nursery.contains_p(array) && capacity <= array_capacity(array);
}
/* Allocates memory (sometimes) */
template<typename Array> Array *factor_vm::reallot_array(Array *array_, cell capacity)
{
data_root<Array> array(array_,this);
template <typename Array>
Array* factor_vm::reallot_array(Array* array_, cell capacity) {
data_root<Array> array(array_, this);
if (array_capacity(array.untagged()) == capacity)
return array.untagged();
if (array_capacity(array.untagged()) == capacity)
return array.untagged();
if(reallot_array_in_place_p(array.untagged(),capacity))
{
array->capacity = tag_fixnum(capacity);
return array.untagged();
}
else
{
cell to_copy = array_capacity(array.untagged());
if(capacity < to_copy)
to_copy = capacity;
if (reallot_array_in_place_p(array.untagged(), capacity)) {
array->capacity = tag_fixnum(capacity);
return array.untagged();
} else {
cell to_copy = array_capacity(array.untagged());
if (capacity < to_copy)
to_copy = capacity;
Array *new_array = allot_uninitialized_array<Array>(capacity);
Array* new_array = allot_uninitialized_array<Array>(capacity);
memcpy(new_array + 1,array.untagged() + 1,to_copy * Array::element_size);
memset((char *)(new_array + 1) + to_copy * Array::element_size,
0,(capacity - to_copy) * Array::element_size);
memcpy(new_array + 1, array.untagged() + 1, to_copy * Array::element_size);
memset((char*)(new_array + 1) + to_copy * Array::element_size, 0,
(capacity - to_copy) * Array::element_size);
return new_array;
}
return new_array;
}
}
}