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117 lines
3.8 KiB
117 lines
3.8 KiB
// 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.Linq; |
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using System.Text; |
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using ICSharpCode.Decompiler; |
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using Mono.Cecil; |
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using ICSharpCode.Decompiler.ILAst; |
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using Mono.Cecil.Cil; |
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namespace ICSharpCode.ILSpy.TreeNodes.Analyzer |
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{ |
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internal static class Helpers |
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{ |
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public static bool IsReferencedBy(TypeDefinition type, TypeReference typeRef) |
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{ |
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// TODO: move it to a better place after adding support for more cases. |
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if (type == null) |
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throw new ArgumentNullException("type"); |
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if (typeRef == null) |
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throw new ArgumentNullException("typeRef"); |
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if (type == typeRef) |
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return true; |
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if (type.Name != typeRef.Name) |
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return false; |
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if (type.Namespace != typeRef.Namespace) |
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return false; |
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if (type.DeclaringType != null || typeRef.DeclaringType != null) { |
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if (type.DeclaringType == null || typeRef.DeclaringType == null) |
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return false; |
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if (!IsReferencedBy(type.DeclaringType, typeRef.DeclaringType)) |
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return false; |
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} |
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return true; |
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} |
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public static MemberReference GetOriginalCodeLocation(MemberReference member) |
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{ |
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if (member is MethodDefinition) |
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return GetOriginalCodeLocation((MethodDefinition)member); |
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return member; |
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} |
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public static MethodDefinition GetOriginalCodeLocation(MethodDefinition method) |
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{ |
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if (method.IsCompilerGenerated()) { |
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return FindMethodUsageInType(method.DeclaringType, method) ?? method; |
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} |
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var typeUsage = GetOriginalCodeLocation(method.DeclaringType, method); |
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return typeUsage ?? method; |
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} |
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public static MethodDefinition GetOriginalCodeLocation(TypeDefinition type, MethodDefinition method) |
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{ |
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if (type != null && type.DeclaringType != null && type.IsCompilerGenerated()) { |
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MethodDefinition constructor = GetTypeConstructor(type); |
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return FindMethodUsageInType(type.DeclaringType, constructor); |
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} |
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return null; |
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} |
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private static MethodDefinition GetTypeConstructor(TypeDefinition type) |
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{ |
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foreach (MethodDefinition method in type.Methods) { |
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if (method.Name == ".ctor") |
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return method; |
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} |
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return null; |
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} |
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private static MethodDefinition FindMethodUsageInType(TypeDefinition type, MethodDefinition analyzedMethod) |
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{ |
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string name = analyzedMethod.Name; |
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foreach (MethodDefinition method in type.Methods) { |
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bool found = false; |
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if (!method.HasBody) |
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continue; |
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foreach (Instruction instr in method.Body.Instructions) { |
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MethodReference mr = instr.Operand as MethodReference; |
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if (mr != null && mr.Name == name && |
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Helpers.IsReferencedBy(analyzedMethod.DeclaringType, mr.DeclaringType) && |
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mr.Resolve() == analyzedMethod) { |
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found = true; |
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break; |
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} |
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} |
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method.Body = null; |
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if (found) |
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return method; |
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} |
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return null; |
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} |
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} |
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}
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