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discard """
output: '''----1
myobj constructed
myobj destroyed
----2
mygeneric1 constructed
mygeneric1 destroyed
----3
mygeneric2 constructed
mygeneric2 destroyed
myobj destroyed
----4
mygeneric3 constructed
mygeneric1 destroyed
----5
mydistinctObj constructed
myobj destroyed
mygeneric2 destroyed
------------------8
mygeneric1 destroyed
----6
myobj destroyed
----7
---9
myobj destroyed
myobj destroyed
'''
"""
type
TMyObj = object
x, y: int
p: pointer
proc `=destroy`(o: var TMyObj) =
if o.p != nil:
dealloc o.p
o.p = nil
echo "myobj destroyed"
type
TMyGeneric1[T] = object
x: T
TMyGeneric2[A, B] = object
x: A
y: B
proc `=destroy`(o: var TMyGeneric1[int]) =
echo "mygeneric1 destroyed"
proc `=destroy`[A, B](o: var TMyGeneric2[A, B]) =
echo "mygeneric2 destroyed"
type
TMyGeneric3[A, B, C] = object
x: A
y: B
z: C
TDistinctObjX = distinct TMyGeneric3[TMyObj, TMyGeneric2[int, int], int]
TDistinctObj = TDistinctObjX
TObjKind = enum Z, A, B, C, D
TCaseObj = object
z: TMyGeneric3[TMyObj, float, int]
case kind: TObjKind
of Z: discard
of A:
x: TMyGeneric1[int]
of B, C:
y: TMyObj
else:
case innerKind: TObjKind
of Z: discard
of A, B, C:
p: TMyGeneric3[int, float, string]
of D:
q: TMyGeneric3[TMyObj, int, int]
r: string
proc open: TMyObj =
# allow for superfluous ()
result = (TMyObj(x: 1, y: 2, p: alloc(3)))
proc `$`(x: TMyObj): string = $x.y
proc myobj() =
var x = open()
echo "myobj constructed"
proc mygeneric1() =
var x = TMyGeneric1[int](x: 10)
echo "mygeneric1 constructed"
proc mygeneric2[T](val: T) =
var a = open()
var b = TMyGeneric2[int, T](x: 10, y: val)
echo "mygeneric2 constructed"
var c = TMyGeneric3[int, int, string](x: 10, y: 20, z: "test")
proc mygeneric3 =
var x = TMyGeneric3[int, string, TMyGeneric1[int]](
x: 10, y: "test", z: TMyGeneric1[int](x: 10))
echo "mygeneric3 constructed"
proc mydistinctObj =
var x = TMyGeneric3[TMyObj, TMyGeneric2[int, int], int](
x: open(), y: TMyGeneric2[int, int](x: 5, y: 15), z: 20)
echo "mydistinctObj constructed"
echo "----1"
myobj()
echo "----2"
mygeneric1()
echo "----3"
mygeneric2[int](10)
echo "----4"
mygeneric3()
echo "----5"
mydistinctObj()
proc caseobj =
block:
var o1 = TCaseObj(kind: A, x: TMyGeneric1[int](x: 10))
block:
echo "----6"
var o2 = TCaseObj(kind: B, y: open())
block:
echo "----7"
var o3 = TCaseObj(kind: D, innerKind: B, r: "test",
p: TMyGeneric3[int, float, string](x: 10, y: 1.0, z: "test"))
echo "------------------8"
caseobj()
proc caseobj_test_sink: TCaseObj =
# check that lifted sink can destroy case val correctly
result = TCaseObj(kind: D, innerKind: D, r: "test",
q: TMyGeneric3[TMyObj, int, int](x: open(), y: 1, z: 0))
result = TCaseObj(kind: B, y: open())
echo "---9"
discard caseobj_test_sink()
# issue #14315
type Vector*[T] = object
x1: int
# x2: T # uncomment will remove error
# proc `=destroy`*(x: var Vector[int]) = discard # this will remove error
proc `=destroy`*[T](x: var Vector[T]) = discard
var a: Vector[int] # Error: unresolved generic parameter
|
