Struct KeyParts 

pub struct KeyParts<T> { /* private fields */ }

Builder for accumulating cache key parts during extraction.

KeyParts carries both the subject being processed and the accumulated key parts. This allows extractors to be chained while building up the complete cache key.

Type Parameter

• T - The subject type (usually a request type)

Usage

Extractors receive a KeyParts<T>, add their parts, and return it for the next extractor in the chain. Finally, into_cache_key() is called to produce the final CacheKey.

Implementations

impl<T> KeyParts<T>

pub fn new(subject: T) -> KeyParts<T>

Creates a new KeyParts wrapping the given subject.

pub fn push(&mut self, part: KeyPart)

Adds a single key part.

pub fn append(&mut self, parts: &mut Vec<KeyPart>)

Appends multiple key parts from a vector.

pub fn into_cache_key(self) -> (T, CacheKey)

Consumes the builder and returns the subject with its cache key.

The returned cache key has an empty prefix and version 0.

Trait Implementations

impl<T> Debug for KeyParts<T>

where T: Debug,

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

Formats the value using the given formatter.