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discard """
output: ""
"""
import sugar
import macros
block distinctBase:
block:
type
Foo[T] = distinct seq[T]
var a: Foo[int]
doAssert a.type.distinctBase is seq[int]
block:
# simplified from https://github.com/nim-lang/Nim/pull/8531#issuecomment-410436458
macro uintImpl(bits: static[int]): untyped =
if bits >= 128:
let inner = getAST(uintImpl(bits div 2))
result = newTree(nnkBracketExpr, ident("UintImpl"), inner)
else:
result = ident("uint64")
type
BaseUint = UintImpl or SomeUnsignedInt
UintImpl[Baseuint] = object
Uint[bits: static[int]] = distinct uintImpl(bits)
doAssert Uint[128].distinctBase is UintImpl[uint64]
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