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util/error.lua @ 11051:08539aa129ee
util.error: Add configuration for including traceback in tostring()
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 28 Aug 2020 12:51:40 +0100 |
parent | 11050:51be24b16e8a |
child | 11053:04ad9555c799 |
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11050:51be24b16e8a | 11051:08539aa129ee |
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1 | |
2 -- Library configuration (see configure()) | |
3 local auto_inject_traceback = false; | |
4 local display_tracebacks = false; | |
5 | |
6 | |
1 local error_mt = { __name = "error" }; | 7 local error_mt = { __name = "error" }; |
2 | 8 |
3 function error_mt:__tostring() | 9 function error_mt:__tostring() |
10 if display_tracebacks and self.context.traceback then | |
11 return ("error<%s:%s:%s:%s>"):format(self.type, self.condition, self.text or "", self.context.traceback); | |
12 end | |
4 return ("error<%s:%s:%s>"):format(self.type, self.condition, self.text or ""); | 13 return ("error<%s:%s:%s>"):format(self.type, self.condition, self.text or ""); |
5 end | 14 end |
6 | 15 |
7 local function is_err(e) | 16 local function is_err(e) |
8 return getmetatable(e) == error_mt; | 17 return getmetatable(e) == error_mt; |
9 end | 18 end |
10 | 19 |
11 local auto_inject_traceback = false; | |
12 | |
13 local function configure(opt) | 20 local function configure(opt) |
21 if opt.display_tracebacks ~= nil then | |
22 display_tracebacks = opt.display_tracebacks; | |
23 end | |
14 if opt.auto_inject_traceback ~= nil then | 24 if opt.auto_inject_traceback ~= nil then |
15 auto_inject_traceback = opt.auto_inject_traceback; | 25 auto_inject_traceback = opt.auto_inject_traceback; |
16 end | 26 end |
17 end | 27 end |
18 | 28 |