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fix(diagnostic): error on invalid severity value (#15965)

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Users can pass string values for severities that match with the enum
names (e.g. "Warn" or "Info") which are converted to the corresponding
numerical value in `to_severity`. Invalid strings were simply left
as-is, which caused confusing errors later on. Instead, report an
invalid severity string right up front to make the problem clear.
This commit is contained in:
Gregory Anders 2021-10-08 12:28:02 -06:00 committed by GitHub
parent 3f09732195
commit d5dd0aa1e6
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1 changed files with 4 additions and 1 deletions
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runtime/lua/vim/diagnostic.lua
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@ -27,7 +27,10 @@ local global_diagnostic_options = {
---@private
local function to_severity(severity)
return type(severity) == 'string' and M.severity[string.upper(severity)] or severity
if type(severity) == 'string' then
return assert(M.severity[string.upper(severity)], string.format("Invalid severity: %s", severity))
end
return severity
end
---@private