ElixirLS does not support folding ranges in heex and eex (a PR implementing that would be appreciated). Alternatively, maybe it’s possible to set up request forwarding to other language server in vscode extension (a PR would be appreciated)
Please open an issue for slow formatting or provide a repro steps.
Thank you for your response and for the contributions you’ve made to the community.
Certainly, I can do that. I should also mention that the slow formatting only occurs the first time I save the HEEx template after copy-pasting the lengthy HTML content. However, it takes almost 10 minutes. I will provide more details in the issue that I will be opening shortly.
Edit:
I’ve opened an issue: Slow Formatting on First Save of Lengthy HEEx Templates · Issue #1106 · elixir-lsp/elixir-ls · GitHub. I hope that’s the correct repository for it.
I can confirm that the initial format is slow. My first guess is computing string difference or document updates is inefficient if there are so many of them. On my laptop it takes ~1 minute
I also experienced this issue with folding code in long heex templates, but have worked around it with this config change:
"[phoenix-heex]": {
"editor.foldingStrategy": "indentation",
"editor.formatOnSave": true,
"editor.defaultFormatter": "JakeBecker.elixir-ls"
},
This lets VSCode fold based purely on indentation - because it’s being formatted by ElixirLs on save, I haven’t found any issues with folding as yet (though I’m sure there will be some edge cases since I’m relying on indentation only).