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# Description Duration can not be negative, and an underflow causes a panic. This should fix #12539 as from what I can tell that bug was caused in `nu-explore:📟:events` from subtracting durations, but I figured this might be more widespread, and saturating to zero generally makes sense. I also added the relevant clippy lint to try to prevent this from happening in the future. I can't think of a reason we would ever want to subtract durations without checking first. cc @fdncred # Tests + Formatting - 🟢 `toolkit fmt` - 🟢 `toolkit clippy` - 🟢 `toolkit test` - 🟢 `toolkit test stdlib`
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.