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Merge pull request #8378 from ibuclaw/merge_stable

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Merge branch 'stable' into merge_stable

Signed-off-by: Nicholas Wilson <thewilsonator@users.noreply.github.com>
Merged-on-behalf-of: Nicholas Wilson <thewilsonator@users.noreply.github.com>
This commit is contained in:
The Dlang Bot 2022-02-12 01:27:37 +00:00 • committed by GitHub
commit 2629671c15
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1 changed files with 34 additions and 8 deletions
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42
std/typecons.d
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@ -2798,13 +2798,24 @@ struct Nullable(T)
}
}
this (ref return scope inout Nullable!T rhs) inout
static if (__traits(hasPostblit, T))
{
_isNull = rhs._isNull;
if (!_isNull)
_value.payload = rhs._value.payload;
else
_value = DontCallDestructorT.init;
this(this)
{
if (!_isNull)
_value.payload.__xpostblit();
}
}
else static if (__traits(hasCopyConstructor, T))
{
this(ref return scope inout Nullable!T rhs) inout
{
_isNull = rhs._isNull;
if (!_isNull)
_value.payload = rhs._value.payload;
else
_value = DontCallDestructorT.init;
}
}
/**
@ -9630,13 +9641,28 @@ unittest
{
int b;
@disable this(this);
this (ref return scope inout S rhs) inout
this(ref return scope inout S rhs) inout
{
this.b = rhs.b + 1;
}
}
Nullable!S s1 = S(1);
assert(s1.get().b == 2);
Nullable!S s2 = s1;
assert(s2.get().b > s1.get().b);
assert(s2.get().b == 3);
}
@safe unittest
{
static struct S
{
int b;
this(this) { ++b; }
}
Nullable!S s1 = S(1);
assert(s1.get().b == 2);
Nullable!S s2 = s1;
assert(s2.get().b == 3);
}