Translating this Python code
a = [1, 2, 3]
b = a
b.append(4)
print(a) # [1, 2, 3, 4]
Run
to Nim requires quite some manual dereferencing:
var a = new seq[int]
a[].add [1,2,3]
var b = a
b[].add(4)
echo a[] # @[1, 2, 3, 4]
Run
which can be avoided by using the [experimantal
pragma](https://nim-lang.org/docs/manual_experimental.html#automatic-dereferencing)
{.experimental: "implicitDeref".}
var a = new seq[int]
a.add [1,2,3]
var b = a
b.add(4)
echo a # @[1, 2, 3, 4]
Run
I wonder why automatic dereferencing for the first proc argument is not the
standard, whereas [implicit
dereferencing](https://nim-lang.org/docs/manual.html#types-reference-and-pointer-types)
of ref object fields is performed.
Further after seeing this recent [pull
request](https://github.com/nim-lang/Nim/pull/19379/commits) without any
discussion in the conversation tab I'm a bit unsure about using this IMO nice
feature.
