mirror of https://github.com/icsharpcode/ILSpy.git
8 changed files with 282 additions and 25 deletions
@ -0,0 +1,197 @@ |
|||||||
|
// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
|
||||||
|
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
|
||||||
|
|
||||||
|
using System; |
||||||
|
using System.Collections.Generic; |
||||||
|
using System.Diagnostics; |
||||||
|
using System.Linq; |
||||||
|
using ICSharpCode.Decompiler; |
||||||
|
using ICSharpCode.Decompiler.ILAst; |
||||||
|
using Mono.Cecil; |
||||||
|
using Mono.Cecil.Cil; |
||||||
|
|
||||||
|
namespace ICSharpCode.ILSpy.Baml |
||||||
|
{ |
||||||
|
[Serializable] |
||||||
|
sealed class EventRegistration |
||||||
|
{ |
||||||
|
public string EventName, MethodName, AttachSourceType; |
||||||
|
public bool IsAttached; |
||||||
|
} |
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Description of ConnectMethodDecompiler.
|
||||||
|
/// </summary>
|
||||||
|
sealed class ConnectMethodDecompiler : MarshalByRefObject |
||||||
|
{ |
||||||
|
LoadedAssembly assembly; |
||||||
|
|
||||||
|
public ConnectMethodDecompiler(LoadedAssembly assembly) |
||||||
|
{ |
||||||
|
this.assembly = assembly; |
||||||
|
} |
||||||
|
|
||||||
|
public Dictionary<int, EventRegistration[]> DecompileEventMappings(string fullTypeName) |
||||||
|
{ |
||||||
|
var result = new Dictionary<int, EventRegistration[]>(); |
||||||
|
TypeDefinition type = this.assembly.AssemblyDefinition.MainModule.GetType(fullTypeName); |
||||||
|
|
||||||
|
if (type == null) |
||||||
|
return result; |
||||||
|
|
||||||
|
MethodDefinition def = null; |
||||||
|
|
||||||
|
foreach (var method in type.Methods) { |
||||||
|
if (method.Name == "System.Windows.Markup.IComponentConnector.Connect") { |
||||||
|
def = method; |
||||||
|
break; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
if (def == null) |
||||||
|
return result; |
||||||
|
|
||||||
|
// decompile method and optimize the switch
|
||||||
|
ILBlock ilMethod = new ILBlock(); |
||||||
|
ILAstBuilder astBuilder = new ILAstBuilder(); |
||||||
|
ilMethod.Body = astBuilder.Build(def, true); |
||||||
|
ILAstOptimizer optimizer = new ILAstOptimizer(); |
||||||
|
var context = new DecompilerContext(type.Module) { CurrentMethod = def, CurrentType = type }; |
||||||
|
optimizer.Optimize(context, ilMethod, ILAstOptimizationStep.RemoveRedundantCode3); |
||||||
|
|
||||||
|
ILSwitch ilSwitch = ilMethod.Body.OfType<ILSwitch>().FirstOrDefault(); |
||||||
|
ILCondition condition = ilMethod.Body.OfType<ILCondition>().FirstOrDefault(); |
||||||
|
|
||||||
|
if (ilSwitch != null) { |
||||||
|
foreach (var caseBlock in ilSwitch.CaseBlocks) { |
||||||
|
if (caseBlock.Values == null) |
||||||
|
continue; |
||||||
|
var events = FindEvents(caseBlock); |
||||||
|
foreach (int id in caseBlock.Values) |
||||||
|
result.Add(id, events); |
||||||
|
} |
||||||
|
} else if (condition != null) { |
||||||
|
result.Add(1, FindEvents(condition.FalseBlock)); |
||||||
|
} |
||||||
|
|
||||||
|
return result; |
||||||
|
} |
||||||
|
|
||||||
|
EventRegistration[] FindEvents(ILBlock block) |
||||||
|
{ |
||||||
|
var events = new List<EventRegistration>(); |
||||||
|
|
||||||
|
foreach (var node in block.Body) { |
||||||
|
var expr = node as ILExpression; |
||||||
|
string eventName, handlerName, attachSource; |
||||||
|
if (IsAddEvent(expr, out eventName, out handlerName)) |
||||||
|
events.Add(new EventRegistration { |
||||||
|
EventName = eventName, |
||||||
|
MethodName = handlerName |
||||||
|
}); |
||||||
|
else if (IsAddAttachedEvent(expr, out eventName, out handlerName, out attachSource)) |
||||||
|
events.Add(new EventRegistration { |
||||||
|
EventName = eventName, |
||||||
|
MethodName = handlerName, |
||||||
|
AttachSourceType = attachSource, |
||||||
|
IsAttached = true |
||||||
|
}); |
||||||
|
} |
||||||
|
|
||||||
|
return events.ToArray(); |
||||||
|
} |
||||||
|
|
||||||
|
bool IsAddAttachedEvent(ILExpression expr, out string eventName, out string handlerName, out string attachSource) |
||||||
|
{ |
||||||
|
eventName = ""; |
||||||
|
handlerName = ""; |
||||||
|
attachSource = ""; |
||||||
|
|
||||||
|
if (expr == null || !(expr.Code == ILCode.Callvirt || expr.Code == ILCode.Call)) |
||||||
|
return false; |
||||||
|
|
||||||
|
if (expr.Operand is MethodReference && expr.Arguments.Count == 3) { |
||||||
|
var addMethod = expr.Operand as MethodReference; |
||||||
|
if (addMethod.Name != "AddHandler" || addMethod.Parameters.Count != 2) |
||||||
|
return false; |
||||||
|
var arg = expr.Arguments[1]; |
||||||
|
if (arg.Code != ILCode.Ldsfld || arg.Arguments.Any() || !(arg.Operand is FieldReference)) |
||||||
|
return false; |
||||||
|
FieldReference fldRef = (FieldReference)arg.Operand; |
||||||
|
attachSource = GetAssemblyQualifiedName(fldRef.DeclaringType); |
||||||
|
eventName = fldRef.Name; |
||||||
|
if (eventName.EndsWith("Event") && eventName.Length > "Event".Length) |
||||||
|
eventName = eventName.Remove(eventName.Length - "Event".Length); |
||||||
|
var arg1 = expr.Arguments[2]; |
||||||
|
if (arg1.Code != ILCode.Newobj) |
||||||
|
return false; |
||||||
|
var arg2 = arg1.Arguments[1]; |
||||||
|
if (arg2.Code != ILCode.Ldftn && arg2.Code != ILCode.Ldvirtftn) |
||||||
|
return false; |
||||||
|
if (arg2.Operand is MethodReference) { |
||||||
|
var m = arg2.Operand as MethodReference; |
||||||
|
handlerName = m.Name; |
||||||
|
return true; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return false; |
||||||
|
} |
||||||
|
|
||||||
|
string GetAssemblyQualifiedName(TypeReference declaringType) |
||||||
|
{ |
||||||
|
string fullName = declaringType.FullName; |
||||||
|
|
||||||
|
if (declaringType.Scope is AssemblyNameReference) |
||||||
|
fullName += ", " + ((AssemblyNameReference)declaringType.Scope).FullName; |
||||||
|
else if (declaringType.Scope is ModuleDefinition) |
||||||
|
fullName += ", " + ((ModuleDefinition)declaringType.Scope).Assembly.FullName; |
||||||
|
|
||||||
|
return fullName; |
||||||
|
} |
||||||
|
|
||||||
|
bool IsAddEvent(ILExpression expr, out string eventName, out string handlerName) |
||||||
|
{ |
||||||
|
eventName = ""; |
||||||
|
handlerName = ""; |
||||||
|
|
||||||
|
if (expr == null || !(expr.Code == ILCode.Callvirt || expr.Code == ILCode.Call)) |
||||||
|
return false; |
||||||
|
|
||||||
|
if (expr.Operand is MethodReference && expr.Arguments.Count == 2) { |
||||||
|
var addMethod = expr.Operand as MethodReference; |
||||||
|
if (addMethod.Name.StartsWith("add_") && addMethod.Parameters.Count == 1) |
||||||
|
eventName = addMethod.Name.Substring("add_".Length); |
||||||
|
var arg = expr.Arguments[1]; |
||||||
|
if (arg.Code != ILCode.Newobj || arg.Arguments.Count != 2) |
||||||
|
return false; |
||||||
|
var arg1 = arg.Arguments[1]; |
||||||
|
if (arg1.Code != ILCode.Ldftn && arg1.Code != ILCode.Ldvirtftn) |
||||||
|
return false; |
||||||
|
if (arg1.Operand is MethodReference) { |
||||||
|
var m = arg1.Operand as MethodReference; |
||||||
|
handlerName = m.Name; |
||||||
|
return true; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return false; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
sealed class AssemblyResolver : MarshalByRefObject |
||||||
|
{ |
||||||
|
LoadedAssembly assembly; |
||||||
|
|
||||||
|
public AssemblyResolver(LoadedAssembly assembly) |
||||||
|
{ |
||||||
|
this.assembly = assembly; |
||||||
|
} |
||||||
|
|
||||||
|
public string FindAssembly(string name) |
||||||
|
{ |
||||||
|
var asm = assembly.LookupReferencedAssembly(name); |
||||||
|
return asm == null ? null : asm.FileName; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
Loading…
Reference in new issue