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Show HN: Unbug – Rust macros for programmatically invoking breakpoints

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88 points BrainBacon | 1 comments | 20 Nov 24 13:33 UTC | HN request time: 0s | source

This project is inspired by some of the asserts in Unreal engine.

Due to reliance on core_intrinsics it is necessary to develop using nightly Rust, but there are stubs in place so a production build will not require nightly.

I recently released version 0.2 which includes no_std support and adds optional log message arguments to the ensure macro.

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revskill ◴[20 Nov 24 13:49 UTC] No.42193918[source]▶
What does nightly mean ? I hate that you could not know a specific version of a nightly.
replies(3): >>42193965 #>>42194026 #>>42197811 #
1. landr0id ◴[20 Nov 24 20:31 UTC] No.42197811[source]▶
It's a bit unfortunate wording but it basically requires any nightly toolchain version. It uses `std::intrinsics::breakpoint()` which is a compiler intrinstic. This has been available for a long time, but afaik will never be exposed on a stable toolchain.

Per https://dev-doc.rust-lang.org/nightly/unstable-book/library-...

>This feature is internal to the Rust compiler and is not intended for general use.