109 lines
3.0 KiB
C#
109 lines
3.0 KiB
C#
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//
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// CleanStep.cs
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//
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// Author:
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// Jb Evain (jbevain@gmail.com)
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//
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// (C) 2006 Jb Evain
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Collections;
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using Mono.Cecil;
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namespace Mono.Linker.Steps {
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public class CleanStep : BaseStep {
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protected override void ProcessAssembly (AssemblyDefinition assembly)
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{
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if (Annotations.GetAction (assembly) == AssemblyAction.Link)
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CleanAssembly (assembly);
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}
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static void CleanAssembly (AssemblyDefinition asm)
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{
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foreach (TypeDefinition type in asm.MainModule.Types)
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CleanType (type);
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}
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static void CleanType (TypeDefinition type)
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{
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if (type.HasProperties)
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CleanProperties (type);
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if (type.HasEvents)
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CleanEvents (type);
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if (type.HasNestedTypes)
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foreach (var nested in type.NestedTypes)
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CleanType (nested);
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}
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static MethodDefinition CheckMethod (TypeDefinition type, MethodDefinition method)
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{
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if (method == null)
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return null;
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return type.Methods.Contains (method) ? method : null;
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}
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static void CleanEvents (TypeDefinition type)
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{
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var events = type.Events;
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for (int i = 0; i < events.Count; i++) {
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var evt = events [i];
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evt.AddMethod = CheckMethod (type, evt.AddMethod);
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evt.InvokeMethod = CheckMethod (type, evt.InvokeMethod);
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evt.RemoveMethod = CheckMethod (type, evt.RemoveMethod);
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if (!IsEventUsed (evt))
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events.RemoveAt (i--);
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}
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}
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static bool IsEventUsed (EventDefinition evt)
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{
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return evt.AddMethod != null || evt.InvokeMethod != null || evt.RemoveMethod != null;
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}
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static void CleanProperties (TypeDefinition type)
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{
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var properties = type.Properties;
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for (int i = 0; i < properties.Count; i++) {
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var prop = properties [i];
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prop.GetMethod = CheckMethod (type, prop.GetMethod);
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prop.SetMethod = CheckMethod (type, prop.SetMethod);
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if (!IsPropertyUsed (prop))
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properties.RemoveAt (i--);
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}
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}
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static bool IsPropertyUsed (PropertyDefinition prop)
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{
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return prop.GetMethod != null || prop.SetMethod != null;
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}
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}
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}
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