Dnspy/Extensions/dnSpy.Analyzer/TreeNodes/InterfacePropertyImplementedByNode.cs
2021-09-20 18:20:01 +02:00

91 lines
4.0 KiB
C#

// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using dnlib.DotNet;
using dnSpy.Analyzer.Properties;
using dnSpy.Contracts.Decompiler;
using dnSpy.Contracts.Text;
namespace dnSpy.Analyzer.TreeNodes {
sealed class InterfacePropertyImplementedByNode : SearchNode {
readonly PropertyDef analyzedProperty;
readonly MethodDef? analyzedMethod;
readonly bool isGetter;
public InterfacePropertyImplementedByNode(PropertyDef analyzedProperty) {
this.analyzedProperty = analyzedProperty ?? throw new ArgumentNullException(nameof(analyzedProperty));
if (this.analyzedProperty.GetMethod is not null) {
analyzedMethod = this.analyzedProperty.GetMethod;
isGetter = true;
}
else {
analyzedMethod = this.analyzedProperty.SetMethod;
isGetter = false;
}
}
protected override void Write(ITextColorWriter output, IDecompiler decompiler) =>
output.Write(BoxedTextColor.Text, dnSpy_Analyzer_Resources.ImplementedByTreeNode);
protected override IEnumerable<AnalyzerTreeNodeData> FetchChildren(CancellationToken ct) {
if (analyzedMethod is null)
return new List<AnalyzerTreeNodeData>();
var analyzer = new ScopedWhereUsedAnalyzer<AnalyzerTreeNodeData>(Context.DocumentService, analyzedMethod, FindReferencesInType);
return analyzer.PerformAnalysis(ct);
}
IEnumerable<AnalyzerTreeNodeData> FindReferencesInType(TypeDef type) {
if (analyzedMethod is null)
yield break;
if (type.IsInterface)
yield break;
var implementedInterfaceRef = InterfaceMethodImplementedByNode.GetInterface(type, analyzedMethod.DeclaringType);
if (implementedInterfaceRef is null)
yield break;
foreach (PropertyDef property in type.Properties.Where(e => e.Name.EndsWith(analyzedProperty.Name))) {
MethodDef accessor = isGetter ? property.GetMethod : property.SetMethod;
// Don't include abstract accessors, they don't implement anything
if (accessor is null || !accessor.IsVirtual || accessor.IsAbstract)
continue;
if (accessor.HasOverrides && accessor.Overrides.Any(m => CheckEquals(m.MethodDeclaration.ResolveMethodDef(), analyzedMethod))) {
yield return new PropertyNode(property) { Context = Context };
yield break;
}
}
foreach (PropertyDef property in type.Properties.Where(e => e.Name == analyzedProperty.Name)) {
MethodDef accessor = isGetter ? property.GetMethod : property.SetMethod;
// Don't include abstract accessors, they don't implement anything
if (accessor is null || !accessor.IsVirtual || accessor.IsAbstract)
continue;
if (TypesHierarchyHelpers.MatchInterfaceMethod(accessor, analyzedMethod, implementedInterfaceRef)) {
yield return new PropertyNode(property) { Context = Context };
yield break;
}
}
}
public static bool CanShow(PropertyDef property) => property.DeclaringType.IsInterface && (property.GetMethod ?? property.SetMethod) is MethodDef accessor && (accessor.IsVirtual || accessor.IsAbstract);
}
}