62 lines
2.8 KiB
C#
62 lines
2.8 KiB
C#
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// 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.Generic;
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using System.Threading;
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using dnlib.DotNet;
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using dnSpy.Analyzer.Properties;
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using dnSpy.Contracts.Decompiler;
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using dnSpy.Contracts.Text;
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namespace dnSpy.Analyzer.TreeNodes {
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sealed class EventOverridesNode : SearchNode {
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readonly EventDef analyzedEvent;
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public EventOverridesNode(EventDef analyzedEvent) => this.analyzedEvent = analyzedEvent ?? throw new ArgumentNullException(nameof(analyzedEvent));
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protected override void Write(ITextColorWriter output, IDecompiler decompiler) =>
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output.Write(BoxedTextColor.Text, dnSpy_Analyzer_Resources.OverriddenByTreeNode);
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protected override IEnumerable<AnalyzerTreeNodeData> FetchChildren(CancellationToken ct) {
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var analyzer = new ScopedWhereUsedAnalyzer<AnalyzerTreeNodeData>(Context.DocumentService, analyzedEvent, FindReferencesInType);
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return analyzer.PerformAnalysis(ct);
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}
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IEnumerable<AnalyzerTreeNodeData> FindReferencesInType(TypeDef type) {
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if (!TypesHierarchyHelpers.IsBaseType(analyzedEvent.DeclaringType, type, resolveTypeArguments: false))
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yield break;
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foreach (EventDef eventDef in type.Events) {
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if (TypesHierarchyHelpers.IsBaseEvent(analyzedEvent, eventDef)) {
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MethodDef anyAccessor = eventDef.AddMethod ?? eventDef.RemoveMethod ?? eventDef.InvokeMethod;
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if (anyAccessor is null)
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continue;
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bool hidesParent = !anyAccessor.IsVirtual ^ anyAccessor.IsNewSlot;
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yield return new EventNode(eventDef, hidesParent) { Context = Context };
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}
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}
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}
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public static bool CanShow(EventDef @event) {
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var accessor = @event.AddMethod ?? @event.RemoveMethod ?? @event.InvokeMethod;
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return accessor is not null && accessor.IsVirtual && !accessor.IsFinal && !accessor.DeclaringType.IsInterface;
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}
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}
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}
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