pythonnet/src/runtime/Util/PythonReferenceComparer.cs at v3.0.1 · pythonnet/pythonnet · GitHub

23 lines (20 loc) · 783 Bytes

using System;

using System.Collections.Generic;

namespace Python.Runtime

{

/// <summary>

/// Compares Python object wrappers by Python object references.

/// <para>Similar to <see cref="object.ReferenceEquals"/> but for Python objects</para>

/// </summary>

[Serializable]

public sealed class PythonReferenceComparer : IEqualityComparer<PyObject>

{

public static PythonReferenceComparer Instance { get; } = new PythonReferenceComparer();

public bool Equals(PyObject? x, PyObject? y)

{

return x?.DangerousGetAddressOrNull() == y?.DangerousGetAddressOrNull();

}

public int GetHashCode(PyObject obj) => obj.DangerousGetAddressOrNull().GetHashCode();

private PythonReferenceComparer() { }

}

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