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Allow borrowing from NewReference #1088

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Merged
lostmsu merged 1 commit into from
Mar 17, 2020
Merged

Allow borrowing from NewReference #1088

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15 changes: 15 additions & 0 deletions src/embed_tests/References.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -36,5 +36,20 @@ public void MoveToPyObject_SetsNull()
reference.Dispose();
}
}

[Test]
public void CanBorrowFromNewReference()
{
var dict = new PyDict();
NewReference reference = Runtime.PyDict_Items(dict.Handle);
try
{
PythonException.ThrowIfIsNotZero(Runtime.PyList_Reverse(reference));
}
finally
{
reference.Dispose();
}
}
}
}
5 changes: 5 additions & 0 deletions src/runtime/NewReference.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,10 @@ ref struct NewReference
{
IntPtr pointer;

[Pure]
public static implicit operator BorrowedReference(in NewReference reference)
=> new BorrowedReference(reference.pointer);

/// <summary>
/// Returns <see cref="PyObject"/> wrapper around this reference, which now owns
/// the pointer. Sets the original reference to <c>null</c>, as it no longer owns it.
Expand All @@ -36,6 +40,7 @@ public void Dispose()
/// <summary>
/// Creates <see cref="NewReference"/> from a raw pointer
/// </summary>
[Pure]
public static NewReference DangerousFromPointer(IntPtr pointer)
=> new NewReference {pointer = pointer};

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