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util/error.lua @ 9869:7be5477c399e
.luacheckrc: Update to reflect new module API methods
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 19 Mar 2019 09:07:36 +0000 |
parent | 9749:9361bd1b9c9b |
child | 10069:6f317e51544d |
rev | line source |
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1 local error_mt = { __name = "error" }; |
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2 |
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3 function error_mt:__tostring() |
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4 return ("error<%s:%s:%s>"):format(self.type, self.condition, self.text); |
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5 end |
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6 |
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7 local function is_err(e) |
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8 return getmetatable(e) == error_mt; |
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9 end |
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10 |
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11 local function new(e, context, registry) |
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12 local template = (registry and registry[e]) or e or {}; |
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13 return setmetatable({ |
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14 type = template.type or "cancel"; |
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15 condition = template.condition or "undefined-condition"; |
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16 text = template.text; |
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17 |
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18 context = context or template.context or { _error_id = e }; |
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19 }, error_mt); |
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20 end |
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21 |
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22 local function coerce(ok, err, ...) |
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23 if ok or is_err(err) then |
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24 return ok, err, ...; |
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25 end |
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26 |
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27 local new_err = setmetatable({ |
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28 native = err; |
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29 |
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30 type = "cancel"; |
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31 condition = "undefined-condition"; |
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32 }, error_mt); |
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33 return ok, new_err, ...; |
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34 end |
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35 |
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36 local function from_stanza(stanza, context) |
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37 local error_type, condition, text = stanza:get_error(); |
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38 return setmetatable({ |
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39 type = error_type or "cancel"; |
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40 condition = condition or "undefined-condition"; |
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41 text = text; |
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42 |
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43 context = context or { stanza = stanza }; |
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44 }, error_mt); |
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45 end |
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46 |
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47 return { |
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48 new = new; |
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49 coerce = coerce; |
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50 is_err = is_err; |
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51 from_stanza = from_stanza; |
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52 } |