private bool Map(ILInstruction instruction)
{
if (instruction.OpCode != OpCodes.Call && instruction.OpCode != OpCodes.Callvirt)
{
return(false);
}
var prevInstruction = instruction.GetPrevious() as ILInstruction;
if (prevInstruction != null && prevInstruction.OpCode.Type == OpCodeType.Prefix)
{
return(false);
}
var calledMethodRef = instruction.Value as MethodReference;
if (calledMethodRef == null)
{
return(false);
}
var calledResolveMethod = calledMethodRef.Resolve(_module);
if (calledResolveMethod == null)
{
return(false);
}
var calledMethod = calledResolveMethod.DeclaringMethod as BuildMethod;
if (calledMethod == null)
{
return(false);
}
if (!calledMethod.EncryptIL)
{
return(false);
}
if (calledMethod.IsVirtual)
{
return(false);
}
var targetModule = (BuildModule)calledMethod.Module;
var cryptoMethod = calledMethod.ILCrypto;
var invokeMethodSig = GetInvokeMethodSig(cryptoMethod, calledMethodRef, targetModule);
instruction.AddPrevious(new ILInstruction(Instruction.GetLdc(cryptoMethod.MethodID)));
instruction.OpCode = OpCodes.Call;
instruction.Value = invokeMethodSig;
return(true);
}