Struct ShaderMetadataCache 

pub struct ShaderMetadataCache { /* private fields */ }

Cache for parsed shader metadata.

Avoids re-parsing shader files on every access while still allowing invalidation for hot reload scenarios.

Implementations

impl ShaderMetadataCache

pub fn new() -> ShaderMetadataCache

Create a new empty metadata cache.

pub fn with_shaders_dir(shaders_dir: PathBuf) -> ShaderMetadataCache

Create a new metadata cache with a specific shaders directory.

pub fn set_shaders_dir(&mut self, shaders_dir: PathBuf)

Set the shaders directory path.

pub fn get(&mut self, shader_name: &str) -> Option<&ShaderMetadata>

Get metadata for a shader, loading and caching if necessary.

Arguments

• shader_name - Filename of the shader (e.g., “crt.glsl”)

Returns

• Some(&ShaderMetadata) if metadata was found
• None if no metadata was found or the shader couldn’t be read

pub fn get_fresh(&self, shader_name: &str) -> Option<ShaderMetadata>

Get metadata without caching (always reads from disk).

Useful for hot reload scenarios where you want fresh data.

pub fn invalidate(&mut self, shader_name: &str)

Invalidate cached metadata for a specific shader.

Call this when a shader file has been modified (hot reload).

pub fn invalidate_all(&mut self)

Invalidate all cached metadata.

Call this when the shaders directory might have changed.

pub fn is_cached(&self, shader_name: &str) -> bool

Check if metadata is cached for a shader.

pub fn cache_size(&self) -> usize

Get the number of cached entries.

Trait Implementations

impl Debug for ShaderMetadataCache

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

Formats the value using the given formatter.

impl Default for ShaderMetadataCache

fn default() -> ShaderMetadataCache

Returns the “default value” for a type.