reliable way to get the name of the current function
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- Subject: reliable way to get the name of the current function
- From: Cosmin Apreutesei <cosmin.apreutesei@...>
- Date: 2012年3月22日 23:58:29 +0200
I noticed strange behavior with debug.getinfo(1).name, in particular,
it doesn't get set if the current function f (for which you want to
get the name for) was called with return f() instead of just f(). Eg.:
function f()
local t,kt={},{}
for k,v in pairs(debug.getinfo(1)) do t[k]=v end
for k in pairs(t) do table.insert(kt,k) end
table.sort(kt)
for _,k in ipairs(kt) do print(k,t[k]) end
end
function g() f() end
function h() return f() end
g()
print('-------')
h()
The above gets the name of f if called from g() but not from h() -
happens with both 5.1 and 5.2; luajit2 even finds the name to be 'h'
in the second case which is even more misleading.
So how can one implement a simple argcheck'ing function with this mess? :)