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Throw is a new experimental rust error handling library, meant to assist and build on existing error handling systems. Throw exports two structs, throw::ErrorPoint and throw::Error .

Rust groups errors into two major categories: recoverable and unrecoverable errors. For a recoverable error, such as a file not found error, we most likely just want to report the problem to the user and retry the operation.

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May 28, 2015 · Rust generally solves errors in two ways: Unrecoverable errors. Once you panic!, that's it. Your program or thread aborts because it encounters something it can't solve and its invariants have been violated. E.g. if you find invalid sequences in what should be a UTF-8 string. Recoverable errors. Also called failures in some documentation.

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Apr 27, 2016 · In Rust, I believe the idiomatic way to deal with recoverable errors is to use Result. For example this function clearly is idiomatic: fn do_work() -> Result<u64, WorkError> {...} Of cou...