Difference between revisions of "Geterror"
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== See Also == | == See Also == | ||
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| + | * [http://www.easyuo.com/openeuo/wiki/index.php/Simplelib simplelib] | ||
* [[ERR]] | * [[ERR]] | ||
Revision as of 08:36, 2 November 2010
Calling Convention
Call
local e = sl.geterror(eref)
Args
eref is a number
Results
e is a table with key:val pair _type:'table:exception' defined
Usage Example
local sl = dofile(getinstalldir()..'/lib/simplelib.lua')
local f = function() local a = {} a = a + 1 end
local h = function(eref)
local e = geterror(eref)
print(e._errmsg)
end
sl.try(f,h)
Description
geterror returns the recorded error table of a detected error when given a valid numeric error reference, eref. An error table has the following fields:
field : description _type 'table:exception' _errid Same as the argument provided to geterror. Numeric. _errname Name provided for the error, or 'SL unknown error'. _errmsg String of descriptive text associated with the error. _probe A table of stack information tables for internal use.
Upon Error
If geterror receives no arguments, or a non-numeric argument, or the argument is out of range, then it returns a single nil value.
