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feat(diagnostics): add vim.diagnostic.get_namespaces (#15866)

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Many vim.diagnostic functions expect the user to pass in a namespace id.

This PR allows the user to list active diagnostic namespaces:

```lua
:lua print(vim.inspect(vim.diagnostic.get_namespaces()))

{
  [7] = {
    name = "vim.lsp.client-1",
    opts = {},
    sign_group = "vim.diagnostic.vim.lsp.client-1"
  }
}
```
This commit is contained in:
Michael Lingelbach
2021-10-01 22:50:28 -07:00
committed by GitHub
parent 36408146ad
commit 724ffe7095
1 changed files with 7 additions and 0 deletions
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7
runtime/lua/vim/diagnostic.lua
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@@ -646,6 +646,13 @@ function M.set(namespace, bufnr, diagnostics, opts)
vim.api.nvim_command("doautocmd <nomodeline> User DiagnosticsChanged")
end
--- Get current diagnostic namespaces.
---
---@return table A list of active diagnostic namespaces |vim.diagnostic|.
function M.get_namespaces()
return vim.deepcopy(all_namespaces)
end
--- Get current diagnostics.
---
---@param bufnr number|nil Buffer number to get diagnostics from. Use 0 for