mirror of https://github.com/icsharpcode/ILSpy.git
Siegfried Pammer
5 months ago
11 changed files with 130 additions and 395 deletions
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// Copyright (c) 2010-2013 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.Generic; |
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using ICSharpCode.Decompiler.CSharp.Syntax; |
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using ICSharpCode.Decompiler.TypeSystem; |
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using ICSharpCode.Decompiler.TypeSystem.Implementation; |
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using ICSharpCode.Decompiler.Util; |
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namespace ICSharpCode.Decompiler.CSharp.TypeSystem |
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{ |
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/// <summary>
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/// Represents a scope that contains "using" statements.
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/// This is either the file itself, or a namespace declaration.
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/// </summary>
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[Serializable] |
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public class UsingScope : AbstractFreezable |
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{ |
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readonly UsingScope parent; |
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string shortName = ""; |
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IList<TypeOrNamespaceReference> usings; |
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IList<KeyValuePair<string, TypeOrNamespaceReference>> usingAliases; |
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IList<string> externAliases; |
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protected override void FreezeInternal() |
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{ |
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usings = FreezableHelper.FreezeList(usings); |
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usingAliases = FreezableHelper.FreezeList(usingAliases); |
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externAliases = FreezableHelper.FreezeList(externAliases); |
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// In current model (no child scopes), it makes sense to freeze the parent as well
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// to ensure the whole lookup chain is immutable.
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if (parent != null) |
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parent.Freeze(); |
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base.FreezeInternal(); |
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} |
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/// <summary>
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/// Creates a new root using scope.
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/// </summary>
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public UsingScope() |
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{ |
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} |
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/// <summary>
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/// Creates a new nested using scope.
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/// </summary>
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/// <param name="parent">The parent using scope.</param>
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/// <param name="shortName">The short namespace name.</param>
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public UsingScope(UsingScope parent, string shortName) |
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{ |
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if (parent == null) |
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throw new ArgumentNullException(nameof(parent)); |
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if (shortName == null) |
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throw new ArgumentNullException(nameof(shortName)); |
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this.parent = parent; |
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this.shortName = shortName; |
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} |
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public UsingScope Parent { |
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get { return parent; } |
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} |
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public string ShortNamespaceName { |
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get { |
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return shortName; |
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} |
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} |
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public string NamespaceName { |
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get { |
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if (parent != null) |
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return NamespaceDeclaration.BuildQualifiedName(parent.NamespaceName, shortName); |
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else |
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return shortName; |
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} |
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// set {
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// if (value == null)
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// throw new ArgumentNullException("NamespaceName");
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// FreezableHelper.ThrowIfFrozen(this);
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// namespaceName = value;
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// }
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} |
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public IList<TypeOrNamespaceReference> Usings { |
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get { |
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if (usings == null) |
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usings = new List<TypeOrNamespaceReference>(); |
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return usings; |
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} |
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} |
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public IList<KeyValuePair<string, TypeOrNamespaceReference>> UsingAliases { |
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get { |
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if (usingAliases == null) |
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usingAliases = new List<KeyValuePair<string, TypeOrNamespaceReference>>(); |
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return usingAliases; |
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} |
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} |
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public IList<string> ExternAliases { |
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get { |
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if (externAliases == null) |
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externAliases = new List<string>(); |
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return externAliases; |
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} |
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} |
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// public IList<UsingScope> ChildScopes {
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// get {
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// if (childScopes == null)
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// childScopes = new List<UsingScope>();
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// return childScopes;
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// }
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// }
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/// <summary>
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/// Gets whether this using scope has an alias (either using or extern)
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/// with the specified name.
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/// </summary>
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public bool HasAlias(string identifier) |
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{ |
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if (usingAliases != null) |
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{ |
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foreach (var pair in usingAliases) |
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{ |
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if (pair.Key == identifier) |
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return true; |
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} |
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} |
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return externAliases != null && externAliases.Contains(identifier); |
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} |
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/// <summary>
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/// Resolves the namespace represented by this using scope.
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/// </summary>
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public ResolvedUsingScope Resolve(ICompilation compilation) |
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{ |
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CacheManager cache = compilation.CacheManager; |
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ResolvedUsingScope resolved = cache.GetShared(this) as ResolvedUsingScope; |
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if (resolved == null) |
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{ |
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var csContext = new CSharpTypeResolveContext(compilation.MainModule, parent != null ? parent.Resolve(compilation) : null); |
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resolved = (ResolvedUsingScope)cache.GetOrAddShared(this, new ResolvedUsingScope(csContext, this)); |
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} |
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return resolved; |
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} |
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} |
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} |
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