pythonnet/src/runtime/pyiter.cs at drop-python2 · filmor/pythonnet · GitHub

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using System;

using System.Collections.Generic;

namespace Python.Runtime

{

/// <summary>

/// Represents a standard Python iterator object. See the documentation at

/// PY2: https://docs.python.org/2/c-api/iterator.html

/// PY3: https://docs.python.org/3/c-api/iterator.html

/// for details.

/// </summary>

public class PyIter : PyObject, IEnumerator<object>

{

private PyObject _current;

/// <summary>

/// PyIter Constructor

/// </summary>

/// <remarks>

/// Creates a new PyIter from an existing iterator reference. Note

/// that the instance assumes ownership of the object reference.

/// The object reference is not checked for type-correctness.

/// </remarks>

public PyIter(IntPtr ptr) : base(ptr)

{

}

/// <summary>

/// PyIter Constructor

/// </summary>

/// <remarks>

/// Creates a Python iterator from an iterable. Like doing "iter(iterable)" in python.

/// </remarks>

public PyIter(PyObject iterable)

{

obj = Runtime.PyObject_GetIter(iterable.obj);

if (obj == IntPtr.Zero)

{

throw new PythonException();

}

protected override void Dispose(bool disposing)

{

if (null != _current)

{

_current.Dispose();

_current = null;

}

base.Dispose(disposing);

}

public bool MoveNext()

{

// dispose of the previous object, if there was one

if (null != _current)

{

_current.Dispose();

_current = null;

}

IntPtr next = Runtime.PyIter_Next(obj);

if (next == IntPtr.Zero)

{

return false;

}

_current = new PyObject(next);

return true;

}

public void Reset()

{

//Not supported in python.

}

public object Current

{

get { return _current; }

}

pythonnet/src/runtime/pyiter.cs at drop-python2 · filmor/pythonnet · GitHub

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