X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?p=sim%2Fe2-interface.git;a=blobdiff_plain;f=e2sim%2Fe2apv1sim%2Fricsim%2Fsrc%2FASN1%2Fasn%2Fper%2Fchoice.hpp;fp=e2sim%2Fe2apv1sim%2Fricsim%2Fsrc%2FASN1%2Fasn%2Fper%2Fchoice.hpp;h=f0d115c9291804c018fdff248cd6c8f6efee4584;hp=0000000000000000000000000000000000000000;hb=3ebf932d23dcbec9ed19f4a51f9d00a0a54f5124;hpb=6896318f2b4ff01b4a88b16019c3dc93b0b693f5

diff --git a/e2sim/e2apv1sim/ricsim/src/ASN1/asn/per/choice.hpp b/e2sim/e2apv1sim/ricsim/src/ASN1/asn/per/choice.hpp
new file mode 100755
index 0000000..f0d115c
--- /dev/null
+++ b/e2sim/e2apv1sim/ricsim/src/ASN1/asn/per/choice.hpp
@@ -0,0 +1,136 @@
+#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/visitor.hpp"
+
+namespace asn {
+namespace per {
+
+/********************************************************************************
+Choice
+*********************************************************************************/
+
+/**************************************************/
+//22.6-7 Default
+template <class IE, class Enabler = void>
+struct ChoiceNoExt
+{
+	static void inline run(IE const& ie, EncoderCtx& ctx)
+	{
+		ConstrainedWholeNumber<typename IE::constraint_t, typename IE::index_type>::run(ctx, IE::normalize(ie.get_index()));
+		VisitorEncoder ve{ ctx };
+		ie.encode(ve);
+	}
+	static void inline run(IE& ie, DecoderCtx& ctx)
+	{
+		typename IE::index_type idx = ConstrainedWholeNumber<typename IE::constraint_t, typename IE::index_type>::run(ctx);
+		VisitorDecoder ve{ ctx };
+		ie.decode(IE::denormalize(idx), ve);
+	}
+};
+
+//22.4 One alternative 
+template <class IE>
+struct ChoiceNoExt<IE, std::enable_if_t<(IE::constraint_t::upper_bound == 0)> >
+{
+	static void inline run(IE const& ie, EncoderCtx& ctx)
+	{
+		VisitorEncoder ve{ ctx };
+		ie.encode(ve);
+	}
+	static void inline run(IE& ie, DecoderCtx& ctx)
+	{
+		VisitorDecoder ve{ ctx };
+		ie.decode(IE::denormalize(0), ve);
+	}
+};
+
+/**************************************************/
+
+template <class IE, class Enable = void>
+struct Choice;
+
+//22.5 Extension present
+template <class IE>
+struct Choice<IE, std::enable_if_t<(IE::constraint_t::extended == true)> >
+{
+	static void inline run(IE const& ie, EncoderCtx& ctx)
+	{
+		auto idx = IE::normalize(ie.get_index());
+		if (idx <= IE::constraint_t::upper_bound)
+		{
+			Tools::bit_accessor::put(0, 1, ctx.refBuffer());
+			ChoiceNoExt<IE>::run(ie, ctx);
+		}
+		else
+		{
+			Tools::bit_accessor::put(1, 1, ctx.refBuffer());
+			NormallySmallNonnegativeBinaryInteger<IE>::run(ie, ctx, idx - IE::constraint_t::upper_bound - 1);
+			OpenTypeVisitorEncoder ve{ ctx };
+			ie.encode(ve);
+		}
+	}
+	static void inline run(IE& ie, DecoderCtx& ctx)
+	{
+		u8 ext = Tools::bit_accessor::get(1, ctx.refBuffer());
+		if (ext)
+		{
+			typename IE::index_type idx = IE::constraint_t::upper_bound + 1 + NormallySmallNonnegativeBinaryInteger<IE, typename IE::index_type>::run(ctx);
+			if (idx >= IE::constraint_t::total_num_entries)
+			{
+				ie.set_unknown();
+				size_t size = LengthDeterminantDefault::run(ctx);
+				DecoderCtx::buf_type& buffer = ctx.refBuffer();
+				if (buffer.getBytesLeft() < size)
+					ctx.refErrorCtx().lengthErrorBytes(buffer.getBytesLeft(), size);
+				else
+					buffer.advance(size);
+			}
+			else
+			{
+				OpenTypeVisitorDecoder ve{ ctx };
+				ie.decode(IE::denormalize(idx), ve);
+			}
+		}
+		else
+			ChoiceNoExt<IE>::run(ie, ctx);
+	}
+};
+
+//22.6 No extension
+template <class IE>
+struct Choice<IE, std::enable_if_t<(IE::constraint_t::extended == false)> >
+{
+	static void inline run(IE const& ie, EncoderCtx& ctx)
+	{
+		ChoiceNoExt<IE>::run(ie, ctx);
+	}
+	static void inline run(IE& ie, DecoderCtx& ctx)
+	{
+		ChoiceNoExt<IE>::run(ie, ctx);
+	}
+};
+
+} //namespace per
+} //namespace asn