Crate try_insert_ext

Provides extension traits for Option and map Entry types, adding try_insert methods. These methods take possibly empty containers, and if empty, run an initialization function. If this function errors, an error is returned. Otherwise, the initialized value is returned.

Traits

EntryInsertExt	Extends map entries with or_try_insert_with and or_try_insert_with_key.
OptionInsertExt	Extends Option with get_or_try_insert_with.
SetInsertExt	Extends sets with get_or_try_insert_with.