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static:
var
a: ref string
b: ref string
new a
a[] = "Hello world"
b = a
b[5] = 'c'
doAssert a[] == "Hellocworld"
doAssert b[] == "Hellocworld"
proc notGlobal() =
var
a: ref string
b: ref string
new a
a[] = "Hello world"
b = a
b[5] = 'c'
doAssert a[] == "Hellocworld"
doAssert b[] == "Hellocworld"
notGlobal()
static: # bug 6081
block:
type Obj = object
field: ref int
var i: ref int
new(i)
var r = Obj(field: i)
var rr = r
r.field = nil
doAssert rr.field != nil
proc foo() = # Proc to avoid special global logic
var s: seq[ref int]
var i: ref int
new(i)
s.add(i)
var head = s[0]
s[0] = nil
doAssert head != nil
foo()
static:
block: # global alias
var s: ref int
new(s)
var ss = s
s[] = 1
doAssert ss[] == 1
static: # bug #8402
type R = ref object
var empty: R
let otherEmpty = empty
block:
# fix https://github.com/timotheecour/Nim/issues/88
template fun() =
var s = @[10,11,12]
var a = s[0].addr
a[] += 100 # was giving SIGSEGV
doAssert a[] == 110
static: fun()
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