Ability to filter treesitter nodes

[kozorork]

It seems like the treesitter function can only be used to fuzzy-search all symbols. Maybe searching only through specific nodes could be useful (for example to find a function and jump to it)

[gemini-code-assist]

Summary of Changes

Hello @kozorork, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the treesitter provider by introducing a new filtering mechanism. Previously, the function could only fuzzy-search all available symbols. With this change, users can now provide a custom filter function to narrow down the search to specific types of nodes, such as functions or variables, improving the precision and utility of treesitter-based searches.

Highlights

• Treesitter Node Filtering: Introduced a new node_filter option to the treesitter function, enabling users to provide a custom function to filter nodes based on their properties and kind.
• Node Kind Processing: Adjusted the order of node.kind processing to ensure the simplified kind is available before applying the new node_filter.

Changelog

• lua/fzf-lua/providers/buffers.lua
  • Added node_filter option to the treesitter function to allow custom filtering of nodes.
  • Adjusted the order of node.kind processing to ensure the simplified kind is available for filtering.

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[gemini-code-assist]

Code Review

This pull request adds a node_filter option to the treesitter provider, which is a great feature. The implementation is sound, but it leaves behind a stale comment after refactoring the code. I've suggested removing it to improve maintainability.

[gemini-code-assist]

The code that removes the node prefix has been moved out of this vim.schedule block to line 595. This comment is now stale and should be removed to avoid confusion.