Is there a way to make the collect macro to create seq by default, without specifying it explicitly as collect(newSet):?
I tried simple code, but it won't work:
import sets, sugar
let data = @["bird", "word"]
template collect(body) =
collect(newSeq, body)
discard collect:
for i, d in data.pairs:
if i mod 2 == 0: d
P.S.
I noticed some problems with the collect macro, maybe they already marked as problems in issues.
import sets, sugar
let data = @["bird", "word"]
echo collect(newSeq):
for i, d in data.pairs:
if i mod 2 == 0: d
import sets, sugar
let data = @["bird", "word"]
discard newSeq.collect:
for i, d in data.pairs:
if i mod 2 == 0: d
discard initHashSet.collect:
for d in data.items: {d}
This works fine:
import sugar
let data = @["bird", "word"]
echo (collect(newSeq,
for i, d in data.pairs:
if i mod 2 == 0: d))
I believe collect in the development branch can infer the desired collection type
Nice!
the collect without newSeq (and newSeq.collect) work in devel, not 1.4.2 as does:
discard newSeq.collect:
for i,d in data.pairs:
if i mod 2 == 0: d
echo newSeq.collect(
for i,d in data.pairs:
if i mod 2 == 0: d)
echo (block:newSeq.collect:
for i, d in data.pairs:
if i mod 2 == 0: d)