71 lines
2.0 KiB
C#
71 lines
2.0 KiB
C#
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/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.Collections.Generic;
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using dnSpy.Contracts.Documents.TreeView;
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namespace dnSpy.AsmEditor.Commands {
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/// <summary>
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/// Creates a <see cref="NamespaceNode"/> if it doesn't exist. Caches the node to make sure
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/// the same <see cref="NamespaceNode"/> is used all the time.
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/// </summary>
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sealed class NamespaceNodeCreator {
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readonly ModuleDocumentNode modNode;
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readonly NamespaceNode nsNode;
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readonly bool nsNodeCreated;
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public NamespaceNode NamespaceNode => nsNode;
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public IEnumerable<DocumentTreeNodeData> OriginalNodes {
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get {
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yield return modNode;
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if (!nsNodeCreated)
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yield return nsNode;
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}
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}
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public NamespaceNodeCreator(string ns, ModuleDocumentNode modNode) {
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this.modNode = modNode;
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var newNsNode = modNode.FindNode(ns);
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if (newNsNode is null) {
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newNsNode = modNode.Create(ns);
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nsNodeCreated = true;
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}
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nsNode = newNsNode;
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}
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/// <summary>
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/// Add the <see cref="NamespaceNode"/> if it doesn't exist
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/// </summary>
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public void Add() {
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if (nsNodeCreated)
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modNode.TreeNode.AddChild(nsNode.TreeNode);
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}
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/// <summary>
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/// Undo what <see cref="Add()"/> did
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/// </summary>
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public void Remove() {
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if (nsNodeCreated)
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modNode.TreeNode.Children.Remove(nsNode.TreeNode);
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}
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}
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}
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