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view framework/env/convert/to_human.lua @ 6:5cba83b3f411
Version 1.0.6
Bugfix: class_prototype:add_reference{...} uses now qualified names in SQL queries to allow JOINs
Fixes in the documentation of slot.put_into and trace.debug
Bugfix: class_prototype:add_reference{...} uses now qualified names in SQL queries to allow JOINs
Fixes in the documentation of slot.put_into and trace.debug
| author | jbe/bsw |
|---|---|
| date | Fri Jan 22 12:00:00 2010 +0100 (2010-01-22) |
| parents | 9fdfb27f8e67 |
| children |
line source
1 function convert.to_human(value, typ)
2 if value == nil then return "" end -- TODO: is this correct?
3 if typ and not atom.has_type(value, typ) then
4 error("The value passed to convert.to_human(...) has not the specified type.")
5 end
6 local type_symbol
7 local value_type = type(value)
8 if value_type ~= "table" and value_type ~= "userdata" then
9 type_symbol = value_type
10 else
11 type_symbol = convert._type_symbol_mappings[getmetatable(value)]
12 end
13 if not type_symbol then
14 error("Unrecognized type reference occurred in convert.to_human(...).")
15 end
16 local converter = convert["_from_" .. type_symbol .. "_to_human"]
17 if not converter then
18 error("Type reference in convert.from_human(...) could be recognized, but the converter function is not existent.")
19 end
20 return converter(value)
21 end