Use a workspace level TokenMap and Engines
#7139
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CodSpeed Performance ReportMerging #7139 will not alter performanceComparing Summary
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IGI-111
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May 5, 2025
## Description This PR replaces our custom Tokio-based thread watcher for `Forc.toml` files with the built-in LSP `didChangeWatchedFiles` notification system. The changes: * Remove the Tokio thread-based file watching system and associated cleanup code * Implement client-side file watching registration during initialization * Handle `Forc.toml` file changes through the LSP notification protocol * Update tests to use the new notification system * Simplify manifest syncing with a direct approach This approach is more efficient as it leverages the client's native file watching capabilities rather than spawning a separate thread. The PR maintains the same functionality while reducing resource usage and complexity. Note: This doesn't yet implement the recompilation on `Forc.toml` changes as mentioned in issue #7103, but adds a TODO placeholder for that functionality. This PR is a precursor to #7139 ## Checklist - [x] I have linked to any relevant issues. - [x] I have commented my code, particularly in hard-to-understand areas. - [ ] I have updated the documentation where relevant (API docs, the reference, and the Sway book). - [ ] If my change requires substantial documentation changes, I have [requested support from the DevRel team](https://github.com/FuelLabs/devrel-requests/issues/new/choose) - [x] I have added tests that prove my fix is effective or that my feature works. - [x] I have added (or requested a maintainer to add) the necessary `Breaking*` or `New Feature` labels where relevant. - [x] I have done my best to ensure that my PR adheres to [the Fuel Labs Code Review Standards](https://github.com/FuelLabs/rfcs/blob/master/text/code-standards/external-contributors.md). - [x] I have requested a review from the relevant team or maintainers.
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Description
This PR moves
TokenMapandEnginesout of theSessiontype up toServerStateso a single instance of each can be shared across all workspace members.Up until now, each workspace member used a unique
Engines. This meant the standard library and any other dependancies were unable to utilise theQueryEnginecache, leading to lots of duplicate entries. This was leading to inflated initialization times when opening a new workspace member and significantly increasing the RAM footprint of the language server.For example, opening each workspace member in the FUSD projects workspace would see RAM usage exceeding ~30.0 gig. Now we no longer exceed 2.0 gig of RAM.
Future PR's will move the
BuildPlanCacheandSyncup to theServerStatelevel as well.part of #7111 & #6226
closes #5645
closes #5856
Checklist
Breaking*orNew Featurelabels where relevant.