Module env_var_os 

Functions

provided_to_erased

This function takes ProvidedValue and coverts it to an erased Value by allocating it on an arena if the query has the arena_cache modifier. The value is then erased and returned. This will happen when computing the query using a provider or decoding a stored result.

Type Aliases

Key

LocalKey

ProvidedValue

This type alias specifies the type returned from query providers and the type used for decoding. For regular queries this is the declared returned type V, but arena_cache will use <V as ArenaCached>::Provided instead.

Storage

Value