Enhanced SIM for E2AP v1 for TS UC

[sim/e2-interface.git] / e2sim / e2apv1sim / src / ASN1 / asn / per / enumerated.hpp

diff --git a/e2sim/e2apv1sim/src/ASN1/asn/per/enumerated.hpp b/e2sim/e2apv1sim/src/ASN1/asn/per/enumerated.hpp
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+#pragma once
+/******************************************************************************
+*
+*   Copyright (c) 2019 AT&T Intellectual Property.
+*   Copyright (c) 2018-2019 Nokia.
+*
+*   Licensed under the Apache License, Version 2.0 (the "License");
+*   you may not use this file except in compliance with the License.
+*   You may obtain a copy of the License at
+*
+*       http://www.apache.org/licenses/LICENSE-2.0
+*
+*   Unless required by applicable law or agreed to in writing, software
+*   distributed under the License is distributed on an "AS IS" BASIS,
+*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*   See the License for the specific language governing permissions and
+*   limitations under the License.
+*
+******************************************************************************/
+
+// Standard Includes: ANSI C/C++, MSA, and Third-Party Libraries
+
+// Local Includes: Application specific classes, functions, and libraries
+#include "asn/per/common.hpp"
+#include "asn/per/whole_number.hpp"
+#include "asn/per/binary_integer.hpp"
+
+namespace asn {
+namespace per {
+
+template<class IE, class Enable = void>
+struct Enumerated;
+
+template<class IE>
+struct Enumerated<IE, std::enable_if_t<(IE::constraint_t::type == constraint_type::CONSTRAINED)> >
+{
+       static void inline run(IE const& ie, EncoderCtx& ctx)
+       {
+               if (ie.get() > IE::constraint_t::upper_bound)
+               {
+                       ctx.refErrorCtx().valueRangeError(static_cast<size_t>(ie.get()));
+                       return;
+               }
+               ConstrainedWholeNumber<typename IE::constraint_t, typename IE::value_type>::run(ctx, ie.get());
+       }
+       static void inline run(IE& ie, DecoderCtx& ctx)
+       {
+               ie.set(ConstrainedWholeNumber<typename IE::constraint_t, typename IE::value_type>::run(ctx));
+       }
+};
+
+template<class IE>
+struct Enumerated<IE, std::enable_if_t<(IE::constraint_t::type == constraint_type::CONSTRAINED_EXTENDED)> >
+{
+       static void inline run(IE const& ie, EncoderCtx& ctx)
+       {
+               if (ie.get() <= IE::constraint_t::upper_bound)
+               {
+                       Tools::bit_accessor::put(0, 1, ctx.refBuffer());
+                       ConstrainedWholeNumber<typename IE::constraint_t, typename IE::value_type>::run(ctx, ie.get());
+               }
+               else
+               {
+                       Tools::bit_accessor::put(1, 1, ctx.refBuffer());
+                       NormallySmallNonnegativeBinaryInteger<IE>::run(ie, ctx, ie.get() - IE::constraint_t::upper_bound - 1);
+               }
+       }
+       static void inline run(IE& ie, DecoderCtx& ctx)
+       {
+               u8 ext = Tools::bit_accessor::get(1, ctx.refBuffer());
+               if (ext)
+                       ie.set(IE::constraint_t::upper_bound + 1 + NormallySmallNonnegativeBinaryInteger<IE>::run(ctx));
+               else
+                       ie.set(ConstrainedWholeNumber<typename IE::constraint_t, typename IE::value_type>::run(ctx));
+       }
+};
+
+} //namespace per
+} //namespace asn