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Rust @programming.dev Doods @infosec.pub

rust_analyzer takes forever to load; cargo check is instant.

I was using Iced as a dependency, but wanted to tweak its source code for some reason, so I jumped into the folder where cargo downloads dependencies, and went into iced_wgpu 13.5 (I think that's the version).

I could make a change, then run

cargo clean -p iced_wgpu && cargo check

in my other project for instant feedback, yet it took rust_analyzer at least 5 whole minutes to stop hallucinating.

Can I disable some functionality of rust_analyzer? I only use it for jump-to-definition, linting and syntax highlighting; I don't even use autocomplete.

Setup:

  • Desktop that thermally throttles only when both the IGPU and the CPU are under full load, and is cool otherwise.

  • CPU: Intel I5-7500

  • RAM: 8 GiB DDR-4

  • Editor: NVIM v0.11.0-dev | Build type: RelWithDebInfo | LuaJIT 2.1.0-beta3 (I had the same issue with other versions as well).

TLDR

What can I disable in rust_analyzer to boost performance while maintaining jump-to-definition, linting and syntax-highlighting, or what can I do to boost rust_analyzer for big projects in general?

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  • No solution, but I have a similar issue with the higher crate.

    There the /prelude/src/lib.rs file lets rust-analyzer lose its mind and allocate gigabytes upon gigabytes of memory, even though the file compiles just fine and nearly instantaneous...

    I think this has something to do with recursive macros. Doesn't iced also have such? I have faint memories of a column! macro?

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