Module typed_array 

Typed contiguous array for v2 runtime.

TypedArray<T> is a 24-byte #[repr(C)] heap object with a HeapHeader, a pointer to a contiguous T buffer, length, and capacity. The compiler monomorphizes: Array<number> and Array<i32> are different TypedArray instantiations with no element-level type checking.

Memory layout (24 bytes)

Offset  Size  Field
------  ----  -----
  0       8   header (HeapHeader — refcount at offset 0)
  8       8   data (*mut T — pointer to contiguous T buffer)
 16       4   len (element count)
 20       4   cap (allocated capacity)

Structs

TypedArray

Typed contiguous array with refcounted header.

Constants

ELEM_TYPE_BOOL

_pad-byte discriminant for TypedArray<u8> carrying bool elements.

ELEM_TYPE_CHAR

_pad-byte discriminant for TypedArray<char>.

ELEM_TYPE_DECIMAL

_pad-byte discriminant for TypedArray<*const DecimalObj>.

ELEM_TYPE_F32

_pad-byte discriminant for TypedArray<f32>.

ELEM_TYPE_F64

_pad-byte discriminant for TypedArray<f64>.

ELEM_TYPE_I8

_pad-byte discriminant for TypedArray<i8>.

ELEM_TYPE_I16

_pad-byte discriminant for TypedArray<i16>.

ELEM_TYPE_I32

_pad-byte discriminant for TypedArray<i32>.

ELEM_TYPE_I64

_pad-byte discriminant for TypedArray<i64>.

ELEM_TYPE_STRING

_pad-byte discriminant for TypedArray<*const StringObj>.

ELEM_TYPE_TYPED_OBJECT

_pad-byte discriminant for TypedArray<*const TypedObjectStorage>.

ELEM_TYPE_U8

_pad-byte discriminant for TypedArray<u8> carrying u8 elements.

ELEM_TYPE_U16

_pad-byte discriminant for TypedArray<u16>.

ELEM_TYPE_U32

_pad-byte discriminant for TypedArray<u32>.

ELEM_TYPE_UNKNOWN

_pad-byte discriminant for an unstamped / unknown element type.

Functions

read_elem_type^⚠

Read the element-type discriminant stamped in the _pad byte (offset 7).

release_v2_typed_array^⚠

Release one refcount share of a v2-raw *mut TypedArray<T> carrier; on the last share, read the stamped element type and free the array via the matching monomorphized drop_array / drop_array_heap.

retain_v2_typed_array^⚠

Retain (bump the refcount of) a v2-raw *mut TypedArray<T> carrier.