Struct BufferDescriptor 

pub struct BufferDescriptor {
    pub id: BufferId,
    pub size_bytes: usize,
    pub name: Option<String>,
    pub external: bool,
    pub alignment: usize,
}

Metadata describing a logical device buffer in the graph.

Buffers are abstract references to device memory regions. The memory planner uses buffer descriptors to assign physical allocations while maximising reuse across non-overlapping lifetimes.

Fields

id: BufferId

Unique identifier.

size_bytes: usize

Size in bytes.

name: Option<String>

Optional human-readable name.

external: bool

If true, this buffer is externally managed (not handled by the planner).

alignment: usize

Required alignment in bytes (must be a power of two).

Implementations

impl BufferDescriptor

pub fn new(id: BufferId, size_bytes: usize) -> Self

Creates a new buffer descriptor.

pub fn external(self) -> Self

Marks this buffer as externally managed (builder pattern).

pub fn with_alignment(self, align: usize) -> Self

Sets the buffer’s required alignment (builder pattern).

Panics

Panics in debug builds if align is not a power of two or is zero.

pub fn with_name(self, name: impl Into<String>) -> Self

Sets a human-readable name (builder pattern).

Trait Implementations

impl Clone for BufferDescriptor

fn clone(&self) -> BufferDescriptor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BufferDescriptor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for BufferDescriptor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.