private void PropertysIL(AssemblyDefinition assembly, TypeDefinition type)
{
//模板
var notifyPropertyTemplateType = assembly.MainModule.Import(typeof(NotifyPropertyTemplate)).Resolve();
//PropertyChangedEventHandler PropertyChanged = null;
foreach (var f in notifyPropertyTemplateType.Fields)
{
var f2 = new FieldDefinition(f.Name, f.Attributes, f.FieldType);
MapperHelper.CopyProperty(f, f2);
f2.DeclaringType = type;
f2.FieldType = InstuctionsHelper.Import(assembly, f.FieldType);
type.Fields.Add(f2);
}
//public void add_PropertyChanged(PropertyChangedEventHandler value)
//public void remove_PropertyChanged(PropertyChangedEventHandler value)
//void NotifyPropertyChanged(string info)
foreach (var m in notifyPropertyTemplateType.Methods)
{
if (m.IsConstructor)
{
continue;
}
var m2 = new MethodDefinition(m.Name, m.Attributes, m.ReturnType);
MapperHelper.CopyProperty(m, m2);
m2.DeclaringType = type;
foreach (var p in m.Parameters)
{
m2.Parameters.Add(p);
}
foreach (var p in m2.Parameters)
{
p.ParameterType = InstuctionsHelper.Import(assembly, p.ParameterType);
}
foreach (var v in m2.Body.Variables)
{
v.VariableType = InstuctionsHelper.Import(assembly, v.VariableType);
}
foreach (var i in m2.Body.Instructions)
{
if (i.Operand != null)
{
if (i.Operand is FieldDefinition && type.Fields.FirstOrDefault(c => c.Name == (i.Operand as FieldDefinition).Name) != null)
{
i.Operand = type.Fields.FirstOrDefault(c => c.Name == (i.Operand as FieldDefinition).Name);
}
else
{
i.Operand = InstuctionsHelper.Import(assembly, i.Operand);
}
}
}
type.Methods.Add(m2);
}
//public event PropertyChangedEventHandler PropertyChanged;
foreach (var e in notifyPropertyTemplateType.Events)
{
var e2 = new EventDefinition(e.Name, e.Attributes, e.EventType);
MapperHelper.CopyProperty(e, e2);
e2.DeclaringType = type;
e2.AddMethod = type.Methods.FirstOrDefault(c => c.Name == e2.AddMethod.Name);
e2.RemoveMethod = type.Methods.FirstOrDefault(c => c.Name == e2.RemoveMethod.Name);
type.Events.Add(e2);
}
//属性注入
foreach (var p in type.Properties)
{
if (CommonHelper.HasAttribute(type.CustomAttributes, typeof(NoAopAttribute).FullName) == true)
{
continue;
}
if (p.SetMethod != null)
{
var method = p.SetMethod;
var ilProcessor = method.Body.GetILProcessor();
var lastInstruction = method.Body.Instructions[method.Body.Instructions.Count - 1];
/*
* ldarg.0
* L_0009: ldstr "CustomerName"
* L_000e: call instance void BSF.Aop.Test.NotifyTest::NotifyPropertyChanged(string)
* L_0013: nop
*
*/
List <Instruction> lastInstructions = new List <Instruction>();
lastInstructions.Add(Instruction.Create(OpCodes.Ldarg_0));
lastInstructions.Add(Instruction.Create(OpCodes.Ldstr, p.Name));
lastInstructions.Add(Instruction.Create(OpCodes.Call, type.Methods.FirstOrDefault(c => c.Name == "NotifyPropertyChanged")));
lastInstructions.Add(Instruction.Create(OpCodes.Nop));
//插入指令
foreach (var i in lastInstructions)
{
ilProcessor.InsertBefore(lastInstruction, i);
}
}
}
}
