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Support default type parameters

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progress on #7516
This commit is contained in:
Zahary Karadjov 2018-06-13 01:35:46 +03:00
commit 16b594b532
3 changed files with 34 additions and 3 deletions
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14
tests/metatype/ttypedesc2.nim
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@ -34,3 +34,17 @@ when true:
type Point[T] = tuple[x, y: T]
proc origin(T: typedesc): Point[T] = discard
discard origin(int)
# https://github.com/nim-lang/Nim/issues/7516
import typetraits
proc hasDefault1(T: type = int): auto = return T.name
doAssert hasDefault1(int) == "int"
doAssert hasDefault1(string) == "string"
doAssert hasDefault1() == "int"
proc hasDefault2(T = string): auto = return T.name
doAssert hasDefault2(int) == "int"
doAssert hasDefault2(string) == "string"
doAssert hasDefault2() == "string"