Add fallible handlers try_filter, try_map, try_filter_map - #39
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Add fallible handlers try_filter, try_map, try_filter_map#39YouKnow-sys wants to merge 1 commit into
try_filter, try_map, try_filter_map#39YouKnow-sys wants to merge 1 commit into
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Each has an `_async` variant and short-circuits the handler chain with an error on `Err` (requires `Output: Fallible`, blanket-impl'd for `Result`).
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Mirrors
filter/map/filter_map, but the closure returnsResult. OnErrit short-circuits the whole chain withControlFlow::Break; symmetricto how
endpointbreaks with a value, and unlikeOk(false)/Noneit doesnot fall through to sibling branches.
Requires the handler
Outputto implement a newFallibletrait(blanket-impl'd for
Result<T, E>), used to build theErrhalf of the output.Closes #26, and closes #32