Difference between revisions of "Geterror"
From OpenEUO
m |
m (→Description) |
||
| Line 19: | Line 19: | ||
== Description == | == Description == | ||
| − | geterror returns the recorded error table of a detected | + | 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 | field : description | ||
Revision as of 23:34, 1 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.
