468 lines
13 KiB
C#
468 lines
13 KiB
C#
/*
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* Copyright 2019 by its authors. See AUTHORS.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma warning disable 1591
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using System;
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using System.Runtime.InteropServices;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Diagnostics.CodeAnalysis;
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using System.Diagnostics.Contracts;
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using static Eina.TraitFunctions;
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using static Eina.InlistNativeFunctions;
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using Eina.Callbacks;
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namespace Eina
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{
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[EditorBrowsable(EditorBrowsableState.Never)]
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internal static class InlistNativeFunctions
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{
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_append(IntPtr in_list, IntPtr in_item);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_prepend(IntPtr in_list, IntPtr in_item);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_append_relative(IntPtr in_list, IntPtr in_item, IntPtr in_relative);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_prepend_relative(IntPtr in_list, IntPtr in_item, IntPtr in_relative);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_remove(IntPtr in_list, IntPtr in_item);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_find(IntPtr in_list, IntPtr in_item);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_promote(IntPtr list, IntPtr item);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_demote(IntPtr list, IntPtr item);
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[DllImport(efl.Libs.Eina)] internal static extern uint
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eina_inlist_count(IntPtr list);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_iterator_new(IntPtr in_list);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_accessor_new(IntPtr in_list);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_sorted_insert(IntPtr list, IntPtr item, IntPtr func);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_sorted_state_new();
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[DllImport(efl.Libs.Eina)] internal static extern int
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eina_inlist_sorted_state_init(IntPtr state, IntPtr list);
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[DllImport(efl.Libs.Eina)] internal static extern void
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eina_inlist_sorted_state_free(IntPtr state);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_sorted_state_insert(IntPtr list, IntPtr item, IntPtr func, IntPtr state);
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[DllImport(efl.Libs.Eina)] internal static extern IntPtr
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eina_inlist_sort(IntPtr head, IntPtr func);
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[DllImport(efl.Libs.CustomExports)] internal static extern IntPtr
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eina_inlist_first_custom_export_mono(IntPtr list);
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[DllImport(efl.Libs.CustomExports)] internal static extern IntPtr
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eina_inlist_last_custom_export_mono(IntPtr list);
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[DllImport(efl.Libs.CustomExports)] internal static extern IntPtr
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eina_inlist_next_custom_export_mono(IntPtr list);
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[DllImport(efl.Libs.CustomExports)] internal static extern IntPtr
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eina_inlist_prev_custom_export_mono(IntPtr list);
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[DllImport(efl.Libs.CustomExports)] internal static extern IntPtr
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eina_inlist_iterator_wrapper_new_custom_export_mono(IntPtr in_list);
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}
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/// <summary>Wrapper around an inplace list.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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[SuppressMessage("Microsoft.Naming", "CA1710:IdentifiersShouldHaveCorrectSuffix",
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Justification="This is a generalized container mapping the native one.")]
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public class Inlist<T> : IEnumerable<T>, IDisposable
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{
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[EditorBrowsable(EditorBrowsableState.Never)]
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public IntPtr Handle {get;set;} = IntPtr.Zero;
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/// <summary>Whether this wrapper owns the native buffer.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public bool Own {get;set;}
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/// <summary>Who is in charge of releasing the resources wrapped by
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/// this instance.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public bool OwnContent {get;set;}
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public int Length
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{
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get { return Count(); }
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}
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private void InitNew()
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{
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Handle = IntPtr.Zero;
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Own = true;
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OwnContent = true;
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}
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private IntPtr InternalFirst()
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{
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return eina_inlist_first_custom_export_mono(Handle);
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}
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private IntPtr InternalLast()
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{
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return eina_inlist_last_custom_export_mono(Handle);
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}
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private IntPtr InternalAt(int idx)
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{
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if (idx < 0)
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{
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return IntPtr.Zero;
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}
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IntPtr curr = Handle;
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for (int n = 0; n != idx && curr != IntPtr.Zero; ++n)
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{
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curr = InternalNext(curr);
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}
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return curr;
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}
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private static IntPtr InternalNext(IntPtr inlist)
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{
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return eina_inlist_next_custom_export_mono(inlist);
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}
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private static IntPtr InternalPrev(IntPtr inlist)
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{
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return eina_inlist_prev_custom_export_mono(inlist);
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}
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/// <summary>
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/// Default constructor.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public Inlist()
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{
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InitNew();
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}
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[EditorBrowsable(EditorBrowsableState.Never)]
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public Inlist(IntPtr handle, bool own)
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{
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Handle = handle;
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Own = own;
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OwnContent = own;
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}
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[EditorBrowsable(EditorBrowsableState.Never)]
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public Inlist(IntPtr handle, bool own, bool ownContent)
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{
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Handle = handle;
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Own = own;
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OwnContent = ownContent;
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}
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/// <summary>
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/// Finalizer to be called from the Garbage Collector.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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~Inlist()
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{
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Dispose(false);
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}
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/// <summary>Disposes of this wrapper, releasing the native array if owned.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="disposing">True if this was called from <see cref="Dispose()"/> public method. False if
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/// called from the C# finalizer.</param>
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protected virtual void Dispose(bool disposing)
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{
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IntPtr h = Handle;
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Handle = IntPtr.Zero;
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if (h == IntPtr.Zero)
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{
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return;
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}
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if (OwnContent)
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{
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for (IntPtr curr = h; curr != IntPtr.Zero; curr = InternalNext(curr))
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{
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NativeFreeInlistNodeElement<T>(curr);
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}
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}
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if (Own)
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{
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while (h != IntPtr.Zero)
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{
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var aux = h;
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h = eina_inlist_remove(h, h);
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NativeFreeInlistNode<T>(aux, false);
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}
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}
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}
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/// <summary>Releases the native resources held by this instance.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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/// <summary>Releases the native resources held by this instance.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public void Free()
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{
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Dispose();
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}
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/// <summary>
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/// Releases the native inlist.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <returns>The native inlist.</returns>
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public IntPtr Release()
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{
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IntPtr h = Handle;
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Handle = IntPtr.Zero;
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return h;
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}
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/// <summary>Sets all ownership.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="ownAll">If the hash own for all ownerships.</param>
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public void SetOwnership(bool ownAll)
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{
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Own = ownAll;
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OwnContent = ownAll;
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}
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/// <summary>Sets own individually.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="own">If own the object.</param>
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/// <param name="ownContent">If own the content's object.</param>
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public void SetOwnership(bool own, bool ownContent)
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{
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Own = own;
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OwnContent = ownContent;
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}
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/// <summary>
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/// Gets the count of the number of items.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <returns>The number of members in the list.</returns>
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public int Count()
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{
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return (int)eina_inlist_count(Handle);
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}
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/// <summary>
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/// Cleanup the inlist.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public void Clean()
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{
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while (Handle != IntPtr.Zero)
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{
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var aux = Handle;
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Handle = eina_inlist_remove(Handle, Handle);
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NativeFreeInlistNode<T>(aux, OwnContent);
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}
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}
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/// <summary>
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/// Adds a new value to the end.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="val">The value to be added.</param>
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public void Append(T val)
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{
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IntPtr node = ManagedToNativeAllocInlistNode(val);
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Handle = eina_inlist_append(Handle, node);
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}
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/// <summary>
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/// Adds a new value to the begin.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="val">The value to be added.</param>
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public void Prepend(T val)
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{
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IntPtr node = ManagedToNativeAllocInlistNode(val);
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Handle = eina_inlist_prepend(Handle, node);
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}
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/// <summary>
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/// Removes value at the specified position from list.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="idx">The given position.</param>
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public void Remove(int idx)
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{
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IntPtr node = InternalAt(idx);
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Handle = eina_inlist_remove(Handle, node);
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NativeFreeInlistNode<T>(node, OwnContent);
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}
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/// <summary>
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/// Returns the element of the list at the specified position.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="idx">The position of the desired element.</param>
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/// <returns>The element at the specified position</returns>
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public T At(int idx)
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{
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IntPtr node = InternalAt(idx);
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if (node == IntPtr.Zero)
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{
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throw new IndexOutOfRangeException();
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}
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return NativeToManagedInlistNode<T>(node);
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}
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/// <summary>
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/// Replaces the element at the specified position.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="idx">The position of the desired element.</param>
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/// <param name="val">The value of the element to be inserted.</param>
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public void DataSet(int idx, T val)
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{
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IntPtr old = InternalAt(idx);
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if (old == IntPtr.Zero)
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{
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throw new IndexOutOfRangeException();
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}
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IntPtr new_node = ManagedToNativeAllocInlistNode(val);
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Handle = eina_inlist_append_relative(Handle, new_node, old);
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Handle = eina_inlist_remove(Handle, old);
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NativeFreeInlistNode<T>(old, OwnContent);
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}
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/// <summary>
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/// Accessor by index to the elements of this list.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public T this[int idx]
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{
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get
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{
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return At(idx);
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}
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set
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{
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DataSet(idx, value);
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}
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}
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/// <summary>
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/// Returns a array containing all of the elements in proper sequence.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <returns>A array</returns>
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public T[] ToArray()
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{
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var managed = new T[Count()];
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int i = 0;
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for (IntPtr curr = Handle; curr != IntPtr.Zero; ++i, curr = InternalNext(curr))
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{
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managed[i] = NativeToManagedInlistNode<T>(curr);
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}
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return managed;
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}
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/// <summary>
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/// Adds a array to the end.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="values">The values to be added.</param>
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public void AppendArray(T[] values)
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{
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Contract.Requires(values != null, nameof(values));
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foreach (T v in values)
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{
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Append(v);
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}
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}
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/// <summary> Gets an Iterator for this list.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public Eina.Iterator<T> GetIterator()
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{
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return new Eina.Iterator<T>(eina_inlist_iterator_wrapper_new_custom_export_mono(Handle), true);
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}
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/// <summary> Gets an Enumerator for this list.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public IEnumerator<T> GetEnumerator()
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{
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for (IntPtr curr = Handle; curr != IntPtr.Zero; curr = InternalNext(curr))
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{
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yield return NativeToManagedInlistNode<T>(curr);
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}
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}
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System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
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{
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return this.GetEnumerator();
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}
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/// <summary> Gets an Accessor for this List.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public Eina.Accessor<T> GetAccessor()
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{
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return new Eina.AccessorInList<T>(eina_inlist_accessor_new(Handle), Ownership.Managed);
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}
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}
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}
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