Crate nullable_result 

Contents

• NullableResult - the core of this crate
• the extract macro - early return from functions ?-style
• iterator extension - additional methods for iterators over NullableResult
• general iterator extension - additional methods for all iterators
• MaybeTryFrom and MaybeTryInto - analogues of TryFrom and TryInto

Macros

extract

This macro extract that works like the ? operator and can be used in functions that return a NullableResult as long as the error type is the same. It takes a NullableResult, a Result, or an Option. If the input contains an Ok or Some value, the value is extracted and returned, if it contains an Err or Null, the function returns early with the Err or Null wrapped in a new NullableResult.

Structs

TryFilter

See IterExt::try_filter

TryFilterMap

See IterExt::try_filter_map

Enums

NullableResult

A replacement for Option<Result<T, E>> or Result<Option<T>, E>.

Traits

GeneralIterExt

Adds additional methods to all iterators.

IterExt

Additional methods for iterators over NullableResult

MaybeTryFrom

Analogue of TryFrom that returns a NullableResult

MaybeTryInto

Analogue of TryInto that returns a NullableResult