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53 lines
1.8 KiB
C#
53 lines
1.8 KiB
C#
// ==========================================================================
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// This software is subject to the provisions of the Zope Public License,
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// Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
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// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
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// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
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// FOR A PARTICULAR PURPOSE.
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// ==========================================================================
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using System;
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using System.Collections;
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using System.Reflection;
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namespace Python.Runtime {
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//========================================================================
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// Implements a generic Python iterator for IEnumerable objects and
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// managed array objects. This supports 'for i in object:' in Python.
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//========================================================================
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internal class Iterator : ExtensionType {
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IEnumerator iter;
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public Iterator(IEnumerator e) : base() {
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this.iter = e;
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}
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//====================================================================
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// Implements support for the Python iteration protocol.
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//====================================================================
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public static IntPtr tp_iternext(IntPtr ob) {
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Iterator self = GetManagedObject(ob) as Iterator;
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if (!self.iter.MoveNext()) {
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Exceptions.SetError(Exceptions.StopIteration, Runtime.PyNone);
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return IntPtr.Zero;
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}
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object item = self.iter.Current;
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return Converter.ToPythonImplicit(item);
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}
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public static IntPtr tp_iter(IntPtr ob) {
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Runtime.Incref(ob);
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return ob;
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}
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}
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}
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