Method CreateDllImportGlobalVar

IDEHelper/Compiler/BfModule.cpp:18368–18417

}

BfIRValue BfModule::CreateDllImportGlobalVar(BfMethodInstance* methodInstance, bool define)
{
	BF_ASSERT(methodInstance->mIsReified);

	auto typeInstance = methodInstance->GetOwner();

	bool foundDllImportAttr = false;
	BfCallingConvention callingConvention = methodInstance->mCallingConvention;
	for (auto customAttr : methodInstance->GetCustomAttributes()->mAttributes)
	{
		if (customAttr.mType->mTypeDef->mFullName.ToString() == "System.ImportAttribute")
		{
			foundDllImportAttr = true;
		}
	}
	if (!foundDllImportAttr)
	{
		AssertErrorState();
		return BfIRValue();
	}

	StringT<512> name = "bf_hs_preserve@";
	BfMangler::Mangle(name, mCompiler->GetMangleKind(), methodInstance);
	name += "__imp";

	BfIRType returnType;
	SizedArray<BfIRType, 8> paramTypes;
	methodInstance->GetIRFunctionInfo(this, returnType, paramTypes);

	BfIRFunctionType externFunctionType = mBfIRBuilder->CreateFunctionType(returnType, paramTypes, methodInstance->IsVarArgs());
	auto ptrType = mBfIRBuilder->GetPointerTo(externFunctionType);

	BfIRValue initVal;
	if (define)
	{
		if (methodInstance->GetImportCallKind() != BfImportCallKind_None)
			initVal = mBfIRBuilder->CreateConstNull(ptrType);
	}

	auto globalVar = mBfIRBuilder->CreateGlobalVariable(ptrType, false, BfIRLinkageType_External, initVal, name);

	if ((define) && (mBfIRBuilder->DbgHasInfo()))
	{
		auto voidType = GetPrimitiveType(BfTypeCode_None);
		auto ptrType = CreatePointerType(voidType);
		mBfIRBuilder->DbgCreateGlobalVariable(mDICompileUnit, name, name, BfIRMDNode(), 0, mBfIRBuilder->DbgGetType(ptrType), false, globalVar);
	}

	return globalVar;
}

void BfModule::CreateDllImportMethod()
{