private void WeaveOnComplete(MethodDefinition targetMethod, ILProcessor ilp, VariableDefinition aspectInstance, VariableDefinition correlation)
{
if (_onComplete != null)
{
var last = targetMethod.Body.Instructions.Last();
if (last.OpCode == OpCodes.Ret)
{
var insertBefore = last.Previous;
while (insertBefore.OpCode != OpCodes.Nop && insertBefore.OpCode != OpCodes.Br_S)
{
insertBefore = insertBefore.Previous;
}
Instruction loadReturn = null;
//if it's a br_s then we are returning a value.
if (insertBefore.OpCode == OpCodes.Br_S)
{
loadReturn = ilp.Copy(insertBefore.Next);
}
var onCompleteInstructions = GetOnCompleteInstructions(targetMethod, ilp, aspectInstance, correlation, loadReturn).ToArray();
//Place this code before the last nop or br_s so that the onException can place itself correctly.
ilp.InsertInstructionsBefore(insertBefore, onCompleteInstructions);
}
}
}