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type erase resize and reserve internals

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This commit is contained in:
gingerBill
2024-07-14 23:09:10 +01:00
parent 9d84e00502
commit 15fb4ded2a
1 changed files with 21 additions and 22 deletions
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base/runtime/core_builtin.odin
+21 -22
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@@ -729,11 +729,10 @@ clear_dynamic_array :: proc "contextless" (array: ^$T/[dynamic]$E) {
// `reserve_dynamic_array` will try to reserve memory of a passed dynamic array or map to the requested element count (setting the `cap`). // `reserve_dynamic_array` will try to reserve memory of a passed dynamic array or map to the requested element count (setting the `cap`).
// //
// Note: Prefer the procedure group `reserve`. // Note: Prefer the procedure group `reserve`.
_reserve_dynamic_array :: #force_inline proc(array: ^$T/[dynamic]$E, capacity: int, should_zero: bool, loc := #caller_location) -> Allocator_Error { _reserve_dynamic_array :: #force_inline proc(a: ^Raw_Dynamic_Array, size_of_elem, align_of_elem: int, capacity: int, should_zero: bool, loc := #caller_location) -> Allocator_Error {
if array == nil { if a == nil {
return nil return nil
} }
a := (^Raw_Dynamic_Array)(array)
if capacity <= a.cap { if capacity <= a.cap {
return nil return nil
@@ -744,15 +743,15 @@ _reserve_dynamic_array :: #force_inline proc(array: ^$T/[dynamic]$E, capacity: i
} }
assert(a.allocator.procedure != nil) assert(a.allocator.procedure != nil)
old_size := a.cap * size_of(E) old_size := a.cap * size_of_elem
new_size := capacity * size_of(E) new_size := capacity * size_of_elem
allocator := a.allocator allocator := a.allocator
new_data: []byte new_data: []byte
if should_zero { if should_zero {
new_data = mem_resize(a.data, old_size, new_size, align_of(E), allocator, loc) or_return new_data = mem_resize(a.data, old_size, new_size, align_of_elem, allocator, loc) or_return
} else { } else {
new_data = non_zero_mem_resize(a.data, old_size, new_size, align_of(E), allocator, loc) or_return new_data = non_zero_mem_resize(a.data, old_size, new_size, align_of_elem, allocator, loc) or_return
} }
if new_data == nil && new_size > 0 { if new_data == nil && new_size > 0 {
return .Out_Of_Memory return .Out_Of_Memory
@@ -765,26 +764,23 @@ _reserve_dynamic_array :: #force_inline proc(array: ^$T/[dynamic]$E, capacity: i
@builtin @builtin
reserve_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int capacity: int, loc := #caller_location) -> Allocator_Error { reserve_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int capacity: int, loc := #caller_location) -> Allocator_Error {
return _reserve_dynamic_array(array, capacity, true, loc) return _reserve_dynamic_array((^Raw_Dynamic_Array)(array), size_of(E), align_of(E), capacity, true, loc)
} }
@builtin @builtin
non_zero_reserve_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int capacity: int, loc := #caller_location) -> Allocator_Error { non_zero_reserve_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int capacity: int, loc := #caller_location) -> Allocator_Error {
return _reserve_dynamic_array(array, capacity, false, loc) return _reserve_dynamic_array((^Raw_Dynamic_Array)(array), size_of(E), align_of(E), capacity, false, loc)
} }
// `resize_dynamic_array` will try to resize memory of a passed dynamic array or map to the requested element count (setting the `len`, and possibly `cap`).
// _resize_dynamic_array :: #force_inline proc(a: ^Raw_Dynamic_Array, size_of_elem, align_of_elem: int, length: int, should_zero: bool, loc := #caller_location) -> Allocator_Error {
// Note: Prefer the procedure group `resize` if a == nil {
_resize_dynamic_array :: #force_inline proc(array: ^$T/[dynamic]$E, length: int, should_zero: bool, loc := #caller_location) -> Allocator_Error {
if array == nil {
return nil return nil
} }
a := (^Raw_Dynamic_Array)(array)
if length <= a.cap { if length <= a.cap {
if should_zero && a.len < length { if should_zero && a.len < length {
intrinsics.mem_zero(([^]E)(a.data)[a.len:], (length-a.len)*size_of(E)) intrinsics.mem_zero(([^]byte)(a.data)[a.len*size_of_elem:], (length-a.len)*size_of_elem)
} }
a.len = max(length, 0) a.len = max(length, 0)
return nil return nil
@@ -795,15 +791,15 @@ _resize_dynamic_array :: #force_inline proc(array: ^$T/[dynamic]$E, length: int,
} }
assert(a.allocator.procedure != nil) assert(a.allocator.procedure != nil)
old_size := a.cap * size_of(E) old_size := a.cap * size_of_elem
new_size := length * size_of(E) new_size := length * size_of_elem
allocator := a.allocator allocator := a.allocator
new_data : []byte new_data : []byte
if should_zero { if should_zero {
new_data = mem_resize(a.data, old_size, new_size, align_of(E), allocator, loc) or_return new_data = mem_resize(a.data, old_size, new_size, align_of_elem, allocator, loc) or_return
} else { } else {
new_data = non_zero_mem_resize(a.data, old_size, new_size, align_of(E), allocator, loc) or_return new_data = non_zero_mem_resize(a.data, old_size, new_size, align_of_elem, allocator, loc) or_return
} }
if new_data == nil && new_size > 0 { if new_data == nil && new_size > 0 {
return .Out_Of_Memory return .Out_Of_Memory
@@ -815,14 +811,17 @@ _resize_dynamic_array :: #force_inline proc(array: ^$T/[dynamic]$E, length: int,
return nil return nil
} }
// `resize_dynamic_array` will try to resize memory of a passed dynamic array or map to the requested element count (setting the `len`, and possibly `cap`).
//
// Note: Prefer the procedure group `resize`
@builtin @builtin
resize_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int length: int, loc := #caller_location) -> Allocator_Error { resize_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int length: int, loc := #caller_location) -> Allocator_Error {
return _resize_dynamic_array(array, length, true, loc=loc) return _resize_dynamic_array((^Raw_Dynamic_Array)(array), size_of(E), align_of(E), length, true, loc=loc)
} }
@builtin @builtin
non_zero_resize_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int length: int, loc := #caller_location) -> Allocator_Error { non_zero_resize_dynamic_array :: proc(array: ^$T/[dynamic]$E, #any_int length: int, loc := #caller_location) -> Allocator_Error {
return _resize_dynamic_array(array, length, false, loc=loc) return _resize_dynamic_array((^Raw_Dynamic_Array)(array), size_of(E), align_of(E), length, false, loc=loc)
} }
/* /*