287 строки
8.4 KiB
C#
287 строки
8.4 KiB
C#
// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Collections.Specialized;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using Avalonia.Threading;
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using System.Xml.Linq;
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namespace ICSharpCode.ILSpy
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{
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/// <summary>
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/// A list of assemblies.
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/// </summary>
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public sealed class AssemblyList
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{
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readonly string listName;
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/// <summary>Dirty flag, used to mark modifications so that the list is saved later</summary>
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bool dirty;
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internal readonly ConcurrentDictionary<(string assemblyName, bool isWinRT), LoadedAssembly> assemblyLookupCache = new ConcurrentDictionary<(string assemblyName, bool isWinRT), LoadedAssembly>();
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internal readonly ConcurrentDictionary<string, LoadedAssembly> moduleLookupCache = new ConcurrentDictionary<string, LoadedAssembly>();
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/// <summary>
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/// The assemblies in this list.
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/// Needs locking for multi-threaded access!
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/// Write accesses are allowed on the GUI thread only (but still need locking!)
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/// </summary>
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/// <remarks>
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/// Technically read accesses need locking when done on non-GUI threads... but whenever possible, use the
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/// thread-safe <see cref="GetAssemblies()"/> method.
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/// </remarks>
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internal readonly ObservableCollection<LoadedAssembly> assemblies = new ObservableCollection<LoadedAssembly>();
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public AssemblyList(string listName)
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{
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this.listName = listName;
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assemblies.CollectionChanged += Assemblies_CollectionChanged;
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}
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/// <summary>
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/// Loads an assembly list from XML.
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/// </summary>
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public AssemblyList(XElement listElement)
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: this((string)listElement.Attribute("name"))
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{
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foreach (var asm in listElement.Elements("Assembly")) {
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OpenAssembly((string)asm);
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}
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this.dirty = false; // OpenAssembly() sets dirty, so reset it afterwards
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}
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/// <summary>
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/// Gets the loaded assemblies. This method is thread-safe.
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/// </summary>
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public LoadedAssembly[] GetAssemblies()
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{
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lock (assemblies) {
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return assemblies.ToArray();
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}
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}
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/// <summary>
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/// Saves this assembly list to XML.
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/// </summary>
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internal XElement SaveAsXml()
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{
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return new XElement(
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"List",
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new XAttribute("name", this.ListName),
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assemblies.Where(asm => !asm.IsAutoLoaded).Select(asm => new XElement("Assembly", asm.FileName))
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);
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}
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/// <summary>
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/// Gets the name of this list.
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/// </summary>
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public string ListName {
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get { return listName; }
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}
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void Assemblies_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
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{
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ClearCache();
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// Whenever the assembly list is modified, mark it as dirty
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// and enqueue a task that saves it once the UI has finished modifying the assembly list.
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if (!dirty) {
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dirty = true;
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Dispatcher.UIThread.InvokeAsync(
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new Action(
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delegate {
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dirty = false;
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AssemblyListManager.SaveList(this);
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ClearCache();
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}),
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DispatcherPriority.Background
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);
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}
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}
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internal void RefreshSave()
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{
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if (!dirty) {
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dirty = true;
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Dispatcher.UIThread.InvokeAsync(
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new Action(
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delegate {
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dirty = false;
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AssemblyListManager.SaveList(this);
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}),
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DispatcherPriority.Background
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);
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}
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}
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internal void ClearCache()
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{
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assemblyLookupCache.Clear();
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}
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public LoadedAssembly Open(string assemblyUri, bool isAutoLoaded = false)
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{
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if (assemblyUri.StartsWith("nupkg://", StringComparison.OrdinalIgnoreCase)) {
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string fileName = assemblyUri.Substring("nupkg://".Length);
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int separator = fileName.LastIndexOf(';');
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string componentName = null;
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if (separator > -1) {
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componentName = fileName.Substring(separator + 1);
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fileName = fileName.Substring(0, separator);
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LoadedNugetPackage package = new LoadedNugetPackage(fileName);
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var entry = package.Entries.FirstOrDefault(e => e.Name == componentName);
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if (entry != null) {
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return OpenAssembly(assemblyUri, entry.Stream, true);
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}
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}
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return null;
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} else {
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return OpenAssembly(assemblyUri, isAutoLoaded);
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}
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}
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/// <summary>
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/// Opens an assembly from disk.
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/// Returns the existing assembly node if it is already loaded.
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/// </summary>
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public LoadedAssembly OpenAssembly(string file, bool isAutoLoaded = false)
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{
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Dispatcher.UIThread.VerifyAccess();
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file = Path.GetFullPath(file);
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foreach (LoadedAssembly asm in this.assemblies) {
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if (file.Equals(asm.FileName, StringComparison.OrdinalIgnoreCase))
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return asm;
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}
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var newAsm = new LoadedAssembly(this, file);
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newAsm.IsAutoLoaded = isAutoLoaded;
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lock (assemblies) {
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this.assemblies.Add(newAsm);
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}
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return newAsm;
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}
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/// <summary>
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/// Opens an assembly from a stream.
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/// </summary>
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public LoadedAssembly OpenAssembly(string file, Stream stream, bool isAutoLoaded = false)
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{
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Dispatcher.UIThread.VerifyAccess();
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foreach (LoadedAssembly asm in this.assemblies) {
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if (file.Equals(asm.FileName, StringComparison.OrdinalIgnoreCase))
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return asm;
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}
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var newAsm = new LoadedAssembly(this, file, stream);
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newAsm.IsAutoLoaded = isAutoLoaded;
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lock (assemblies) {
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this.assemblies.Add(newAsm);
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}
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return newAsm;
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}
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/// <summary>
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/// Replace the assembly object model from a crafted stream, without disk I/O
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/// Returns null if it is not already loaded.
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/// </summary>
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public LoadedAssembly HotReplaceAssembly(string file, Stream stream)
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{
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Dispatcher.UIThread.VerifyAccess();
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file = Path.GetFullPath(file);
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var target = this.assemblies.FirstOrDefault(asm => file.Equals(asm.FileName, StringComparison.OrdinalIgnoreCase));
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if (target == null)
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return null;
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var index = this.assemblies.IndexOf(target);
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var newAsm = new LoadedAssembly(this, file, stream);
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newAsm.IsAutoLoaded = target.IsAutoLoaded;
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lock (assemblies) {
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this.assemblies.Remove(target);
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this.assemblies.Insert(index, newAsm);
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}
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return newAsm;
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}
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public LoadedAssembly ReloadAssembly(string file)
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{
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Dispatcher.UIThread.VerifyAccess();
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file = Path.GetFullPath(file);
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var target = this.assemblies.FirstOrDefault(asm => file.Equals(asm.FileName, StringComparison.OrdinalIgnoreCase));
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if (target == null)
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return null;
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var index = this.assemblies.IndexOf(target);
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var newAsm = new LoadedAssembly(this, file);
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newAsm.IsAutoLoaded = target.IsAutoLoaded;
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lock (assemblies) {
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this.assemblies.Remove(target);
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this.assemblies.Insert(index, newAsm);
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}
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return newAsm;
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}
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public void Unload(LoadedAssembly assembly)
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{
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Dispatcher.UIThread.VerifyAccess();
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lock (assemblies) {
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assemblies.Remove(assembly);
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}
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RequestGC();
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}
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static bool gcRequested;
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void RequestGC()
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{
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if (gcRequested) return;
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gcRequested = true;
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Dispatcher.UIThread.InvokeAsync(new Action(
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delegate {
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gcRequested = false;
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GC.Collect();
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}), DispatcherPriority.ContextIdle);
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}
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public void Sort(IComparer<LoadedAssembly> comparer)
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{
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Sort(0, int.MaxValue, comparer);
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}
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public void Sort(int index, int count, IComparer<LoadedAssembly> comparer)
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{
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Dispatcher.UIThread.VerifyAccess();
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lock (assemblies) {
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List<LoadedAssembly> list = new List<LoadedAssembly>(assemblies);
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list.Sort(index, Math.Min(count, list.Count - index), comparer);
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assemblies.Clear();
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assemblies.AddRange(list);
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}
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}
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}
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}
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