Hello awesome people,
I'm a newbie to Nim, and trying to rewrite my game engine to it to learn. I've
encountered a strange problem with template and untyped argument. I'm not sure
what exactly is going on. It feels like compiler error really, as the two
examples bellow are only different on wheteher I pass batch: var BatchArg to
the function. Once I do, the template's untyped argument is being checked and
results in undeclared identifier.
However it must be the BatchArg thing, because if I pass just batch: var Batch
it works. But I don't know how it relates to the template inside that is
completely independent on that argument.
Any hints appreciated.
type Quad* = object
a*: int
type Batch* = object
a*: int
type BatchArg = Batch or ref Batch
# Works
proc testB*() =
var quad = Quad()
template attrib(member: untyped) =
echo quad.member
attrib(a)
testB()
# Doesn't work
proc testA*(batch: var BatchArg) =
var quad = Quad()
template attrib(member: untyped) =
echo quad.member
attrib(a) # << Error: undeclared identifier: 'a'
var batch = Batch()
testA(batch)
