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util/error.lua @ 10579:16099e8964d8
Merge 0.11->trunk
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 31 Dec 2019 02:52:12 +0100 |
parent | 10501:e8186aba1583 |
child | 11050:51be24b16e8a |
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local error_mt = { __name = "error" }; function error_mt:__tostring() return ("error<%s:%s:%s>"):format(self.type, self.condition, self.text or ""); end local function is_err(e) return getmetatable(e) == error_mt; end -- Do we want any more well-known fields? -- Or could we just copy all fields from `e`? -- Sometimes you want variable details in the `text`, how to handle that? -- Translations? -- Should the `type` be restricted to the stanza error types or free-form? -- What to set `type` to for stream errors or SASL errors? Those don't have a 'type' attr. local function new(e, context, registry) local template = (registry and registry[e]) or e or {}; return setmetatable({ type = template.type or "cancel"; condition = template.condition or "undefined-condition"; text = template.text; code = template.code; context = context or template.context or { _error_id = e }; }, error_mt); end local function coerce(ok, err, ...) if ok or is_err(err) then return ok, err, ...; end local new_err = setmetatable({ native = err; type = "cancel"; condition = "undefined-condition"; }, error_mt); return ok, new_err, ...; end local function from_stanza(stanza, context) local error_type, condition, text = stanza:get_error(); return setmetatable({ type = error_type or "cancel"; condition = condition or "undefined-condition"; text = text; context = context or { stanza = stanza }; }, error_mt); end return { new = new; coerce = coerce; is_err = is_err; from_stanza = from_stanza; }