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discard """
output: '''test created
test destroyed 0
1
2
3
4
Pony is dying!'''
joinable: false
targets: "c"
"""
# bug #4214
type
Data = object
data: string
rc: int
proc `=destroy`(d: var Data) =
dec d.rc
echo d.data, " destroyed ", d.rc
proc `=`(dst: var Data, src: Data) =
echo src.data, " copied"
dst.data = src.data & " (copy)"
dec dst.rc
inc dst.rc
proc initData(s: string): Data =
result = Data(data: s, rc: 1)
echo s, " created"
proc pointlessWrapper(s: string): Data =
result = initData(s)
proc main =
var x = pointlessWrapper"test"
when true:
main()
# bug #985
type
Pony = object
name: string
proc `=destroy`(o: var Pony) =
echo "Pony is dying!"
proc getPony: Pony =
result = Pony(name: "Sparkles")
iterator items(p: Pony): int =
for i in 1..4:
yield i
for x in getPony():
echo x
#------------------------------------------------------------
#-- Move into tuple constructor and move on tuple unpacking
#------------------------------------------------------------
type
MySeqNonCopyable* = object
len: int
data: ptr UncheckedArray[float]
proc `=destroy`*(m: var MySeqNonCopyable) {.inline.} =
if m.data != nil:
deallocShared(m.data)
m.data = nil
proc `=`*(m: var MySeqNonCopyable, m2: MySeqNonCopyable) {.error.}
proc `=sink`*(m: var MySeqNonCopyable, m2: MySeqNonCopyable) {.inline.} =
if m.data != m2.data:
if m.data != nil:
`=destroy`(m)
m.len = m2.len
m.data = m2.data
proc len*(m: MySeqNonCopyable): int {.inline.} = m.len
proc `[]`*(m: MySeqNonCopyable; i: int): float {.inline.} =
m.data[i.int]
proc `[]=`*(m: var MySeqNonCopyable; i, val: float) {.inline.} =
m.data[i.int] = val
proc setTo(s: var MySeqNonCopyable, val: float) =
for i in 0..<s.len.int:
s.data[i] = val
proc newMySeq*(size: int, initial_value = 0.0): MySeqNonCopyable =#
result.len = size
if size > 0:
result.data = cast[ptr UncheckedArray[float]](createShared(float, size))
result.setTo(initial_value)
proc myfunc(x, y: int): (MySeqNonCopyable, MySeqNonCopyable) =
result = (newMySeq(x, 1.0), newMySeq(y, 5.0))
proc myfunc2(x, y: int): tuple[a: MySeqNonCopyable, b:int, c:MySeqNonCopyable] =
var cc = newMySeq(y, 5.0)
(a: case x:
of 1:
let (z1, z2) = myfunc(x, y)
z2
elif x > 5: raise newException(ValueError, "new error")
else: newMySeq(x, 1.0),
b: 0,
c: block:
var tmp = if y > 0: move(cc) else: newMySeq(1, 3.0)
tmp[0] = 5
tmp
)
let (seq1, seq2) = myfunc(2, 3)
doAssert seq1.len == 2
doAssert seq1[0] == 1.0
doAssert seq2.len == 3
doAssert seq2[0] == 5.0
var (seq3, i, _) = myfunc2(2, 3)
doAssert seq3.len == 2
doAssert seq3[0] == 1.0
var seq4, seq5: MySeqNonCopyable
(seq4, i, seq5) = myfunc2(2, 3)
proc foo =
seq4 = block:
var tmp = newMySeq(4, 1.0)
tmp[0] = 3.0
tmp
doAssert seq4[0] == 3.0
seq4 =
if i > 0: newMySeq(2, 5.0)
elif i < -100: raise newException(ValueError, "Parse Error")
else: newMySeq(2, 3.0)
seq4 =
case (char) i:
of 'A', {'W'..'Z'}: newMySeq(2, 5.0)
of 'B': quit(-1)
else:
let (x1, x2, x3) = myfunc2(2, 3)
x3
foo()
#------------------------------------------------------------
#-- Move into array constructor
#------------------------------------------------------------
var ii = 1
let arr2 = [newMySeq(2, 5.0), if i > 1: newMySeq(3, 1.0) else: newMySeq(0, 0.0)]
var seqOfSeq2 = @[newMySeq(2, 5.0), newMySeq(3, 1.0)]
## issue #10462
proc myfuncLoop(x: int): MySeqNonCopyable =
for i in 0..<x:
var cc = newMySeq(i, 5.0)
result = cc
discard myfuncLoop(3)
#------------------------------------------------------------
# Move into table via openArray
#------------------------------------------------------------
type
TableNonCopyable = object
x: seq[(string, MySeqNonCopyable)]
proc toTable(pairs: sink openArray[(string, MySeqNonCopyable)]): TableNonCopyable =
discard
let mytable = {"a": newMySeq(2, 5.0)}.toTable
|
