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Create PyIter from existing PyObject #1482

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Merged
merged 1 commit into from
Jul 7, 2021
Merged

Create PyIter from existing PyObject #1482

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16 changes: 16 additions & 0 deletions src/runtime/pyiter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,22 @@ public PyIter(IntPtr ptr) : base(ptr)
{
}

/// <summary>
/// Creates new <see cref="PyIter"/> from an untyped reference to Python object.
/// The object must support iterator protocol.
/// </summary>
public PyIter(PyObject pyObject) : base(FromPyObject(pyObject)) { }
static BorrowedReference FromPyObject(PyObject pyObject) {
if (pyObject is null) throw new ArgumentNullException(nameof(pyObject));

if (!Runtime.PyIter_Check(pyObject.Reference))
throw new ArgumentException("Object does not support iterator protocol");

return pyObject.Reference;
}

internal PyIter(BorrowedReference reference) : base(reference) { }

/// <summary>
/// PyIter factory function.
/// </summary>
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