[−][src]Attribute Macro cached_proc_macro::cached

#[cached]

Attributes

  • Cache Name: Use name = "CACHE_NAME" to specify the name for the generated cache.
  • Cache Type: The default cache type is UnboundCache. You specify which of the built-in cache types to use with unbound, size = cache_size, or time = lifetime_in_seconds
  • Cache Create: You can specify the cache creation with create = "{ CacheType::new() }".
  • Custom Cache Type: You can use type = "CacheType" to specify the type of cache to use. This requires create to also be set.
  • Cache Key: Use key = "KeyType" to specify what type to use for the cache key. This requires convert to also be set.
  • Cache Key Convert: Use convert = "{ convert_inputs_to_key }". This requires either key or type to also be set.
  • Caching Result/Option: If your function returns a Result or Option you may want to use result or option to only cache when the output is Ok or Some

Note

The type, create, key, and convert attributes must be in a String This is because darling, which is used for parsing the attributes, does not support parsing attributes into Type or Block.