iex-rs/lithium

Lightweight exceptions for Rust

Rust

103

231 commits

updated Aug 31, 2026

docs.rs/lithium

See the code

README

Lithium

License

Lightweight exceptions.

Lithium provides a custom exception mechanism as an alternative to Rust panics. Compared to Rust panics, this mechanism is allocation-free, avoids indirections and RTTI, and is hence faster, if less applicable.

On nightly, Lithium is more than 2x faster than Rust panics on common Result-like usecases. See the benchmark.

See documentation for usage and installation instructions.

Contributors

purplesyringa

218 commits

sylfn

13 commits

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iex-rs/lithium

Lightweight exceptions for Rust

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103

231 commits

updated Aug 31, 2026

docs.rs/lithium

See the code

README

Lithium

License

Lightweight exceptions.

On nightly, Lithium is more than 2x faster than Rust panics on common Result-like usecases. See the benchmark.

See documentation for usage and installation instructions.

Similar repos

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103

same org

fast/exn

A context-aware concrete Error type built on core::error::Error.

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Lightweight Rust LSP optimized for low memory usage

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dlmalloc ported into Rust

123

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559

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A lightweight version of pin-project written with declarative macros.

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Contributors

purplesyringa

218 commits

sylfn

13 commits

Languages

Rust

98.3%

Shell

1.3%