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discard """
output: '''Concrete '='
Concrete '='
Concrete '='
Concrete '='
Concrete '='
GenericT[T] '=' int
GenericT[T] '=' float
GenericT[T] '=' float
GenericT[T] '=' float
GenericT[T] '=' string
GenericT[T] '=' int8
GenericT[T] '=' bool
GenericT[T] '=' bool
GenericT[T] '=' bool
GenericT[T] '=' bool'''
"""
import typetraits
type
Concrete = object
a, b: string
proc `=`(d: var Concrete; src: Concrete) =
shallowCopy(d.a, src.a)
shallowCopy(d.b, src.b)
echo "Concrete '='"
var x, y: array[0..2, Concrete]
var cA, cB: Concrete
var cATup, cBTup: tuple[x: int, ha: Concrete]
x = y
cA = cB
cATup = cBTup
type
GenericT[T] = object
a, b: T
proc `=`[T](d: var GenericT[T]; src: GenericT[T]) =
shallowCopy(d.a, src.a)
shallowCopy(d.b, src.b)
echo "GenericT[T] '=' ", type(T).name
var ag: GenericT[int]
var bg: GenericT[int]
ag = bg
var xg, yg: array[0..2, GenericT[float]]
var cAg, cBg: GenericT[string]
var cATupg, cBTupg: tuple[x: int, ha: GenericT[int8]]
xg = yg
cAg = cBg
cATupg = cBTupg
var caSeqg, cbSeqg: seq[GenericT[bool]]
newSeq(cbSeqg, 4)
caSeqg = cbSeqg
when false:
type
Foo = object
case b: bool
of false: xx: GenericT[int]
of true: yy: bool
var
a, b: Foo
a = b
|