memoize

func Memoize ¶

func Memoize[F any](f F, options ...Option) F

func MemoizeWithInvalidate ¶ added in v0.1.34

func MemoizeWithInvalidate[F any](f F, options ...Option) (F, func())

MemoizeWithInvalidate wraps a function with a caching layer that stores and reuses computed results. It returns two values:

• A memoized version of the input function with identical signature
• An invalidation function that clears the cache when called

The memoized function caches results based on the string representation of input arguments. Cache entries expire based on time and size limits set via options.

Options:

• WithMaxSize: Sets maximum number of cached results (default 100)
• WithExpiration: Sets how long cached results remain valid (default 1 hour)
• WithIgnoreParams: Specifies argument indices to exclude from cache key
• WithMemoizeErrors: Controls whether error results are cached (default false)
• WithMetrics: Provides a collector for cache performance metrics

Example:

memoizedFn, invalidate := Memoize(expensiveFunc, WithMaxSize(1000))
result := memoizedFn(arg) // Result is computed and cached
invalidate() // Clears the cache