Struct EmbeddedAssetSource 

pub struct EmbeddedAssetSource { /* private fields */ }

Available on crate feature fs only.

Asset source backed by a static (name, bytes) table generated at build time.

The table is typically generated by a build.rs script following the pattern in examples/stm32h747i-disco/assets/disco-assets/build.rs. Lookup is a linear scan over the table for an exact string match on the name.

Infallible after construction: AssetError::Fs(FsError::Device) MUST NOT occur. The only expected failure is FsError::NoSuchFile when the name is absent from the table.

no_std + alloc

Yes. The table and all byte slices are 'static; no heap allocation occurs on the open path.

Implementations

impl EmbeddedAssetSource

pub const fn new(table: &'static [(&'static str, &'static [u8])]) -> Self

Create a source from a static (name, bytes) table.

The table is typically a static generated by a build script; it is &'static so it can be referenced from multiple places without copying.

Trait Implementations

impl AssetSource for EmbeddedAssetSource

fn open<'a>(&'a self, path: &str) -> Result<Box<dyn AssetRead + 'a>, AssetError>

Open an asset by logical path, e.g., "fonts/regular.bin".

fn exists(&self, path: &str) -> bool

Determine whether an asset at path exists.

fn list(&self, _dir: &str) -> Result<AssetIter, AssetError>

List the contents of dir, returning an iterator over asset entries.