feat: rename

lua/preview/diagnostic.lua

@@ -0,0 +1,40 @@
+local M = {}
+
+local log = require('preview.log')
+
+local ns = vim.api.nvim_create_namespace('preview')
+
+---@param bufnr integer
+function M.clear(bufnr)
+  vim.diagnostic.set(ns, bufnr, {})
+  log.dbg('cleared diagnostics for buffer %d', bufnr)
+end
+
+---@param bufnr integer
+---@param name string
+---@param error_parser fun(stderr: string, ctx: preview.Context): preview.Diagnostic[]
+---@param stderr string
+---@param ctx preview.Context
+function M.set(bufnr, name, error_parser, stderr, ctx)
+  local ok, diagnostics = pcall(error_parser, stderr, ctx)
+  if not ok then
+    log.dbg('error_parser for "%s" failed: %s', name, diagnostics)
+    return
+  end
+  if not diagnostics or #diagnostics == 0 then
+    log.dbg('error_parser for "%s" returned no diagnostics', name)
+    return
+  end
+  for _, d in ipairs(diagnostics) do
+    d.source = d.source or name
+  end
+  vim.diagnostic.set(ns, bufnr, diagnostics)
+  log.dbg('set %d diagnostics for buffer %d from provider "%s"', #diagnostics, bufnr, name)
+end
+
+---@return integer
+function M.get_namespace()
+  return ns
+end
+
+return M