HRESULT InjectedType::ReplaceMethodWith(const ModuleID moduleId, const mdToken functionToken, InstructionList &instructions, const mdSignature localVarSigTok, const unsigned minimumStackSize, ExceptionHandlerList &exceptions) const
{
IMAGE_COR_ILMETHOD* pMethodHeader = nullptr;
ULONG iMethodSize = 0;
GUARD_FAILURE_HRESULT(m_profilerInfo->GetILFunctionBody(moduleId, functionToken, (LPCBYTE*)&pMethodHeader, &iMethodSize));
Method method(pMethodHeader);
method.DeleteAllInstructions();
method.AppendInstructions(instructions);
method.SetMinimumStackSize(minimumStackSize);
if (exceptions.size() > 0)
{
method.AddExceptionHandlers(exceptions);
}
ATL::CComPtr<IMethodMalloc> methodMalloc;
GUARD_FAILURE_HRESULT(m_profilerInfo->GetILFunctionBodyAllocator(moduleId, &methodMalloc));
IMAGE_COR_ILMETHOD* pNewMethod = static_cast<IMAGE_COR_ILMETHOD*>(methodMalloc->Alloc(method.GetMethodSize()));
method.WriteMethod(pNewMethod);
if (localVarSigTok != mdSignatureNil)
{
pNewMethod->Fat.Flags |= CorILMethod_InitLocals; // always added when local variables present: http://www.liranchen.com/2010/07/behind-locals-init-flag.html
pNewMethod->Fat.LocalVarSigTok = localVarSigTok;
}
GUARD_FAILURE_HRESULT(m_profilerInfo->SetILFunctionBody(moduleId, functionToken, (LPCBYTE)pNewMethod));
return S_OK;
}
