+#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/elements.hpp"
+#include "asn/per/common.hpp"
+#include "asn/per/binary_integer.hpp"
+#include "asn/per/whole_number.hpp"
+
+namespace asn {
+namespace per {
+
+template<class IE, class Enable = void>
+struct Integer;
+
+template<class IE>
+struct Integer<IE, std::enable_if_t<IE::constraint_t::type == constraint_type::CONSTRAINED> >
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ if(IE::constraint_t::is_extended(ie.get()))
+ {
+ 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 Integer<IE, std::enable_if_t<IE::constraint_t::type == constraint_type::CONSTRAINED_EXTENDED> >
+{
+ //X.691 12.1
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ if (!IE::constraint_t::is_extended(ie.get()))
+ {
+ Tools::bit_accessor::put(0, 1, ctx.refBuffer());
+ //X.691 12.2
+ ConstrainedWholeNumber<typename IE::constraint_t, typename IE::value_type>::run(ctx, ie.get());
+ }
+ else
+ {
+ Tools::bit_accessor::put(1, 1, ctx.refBuffer());
+ //X.691 12.2.4, 12.2.6, 10.8s
+ TwosComplementBinaryInteger<IE>::run(ie, ctx);
+ }
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+
+ u8 ext = Tools::bit_accessor::get(1, ctx.refBuffer());
+ if (ext)
+ TwosComplementBinaryInteger<IE>::run(ie, ctx);
+ else
+ ie.set(ConstrainedWholeNumber<typename IE::constraint_t, typename IE::value_type>::run(ctx));
+ }
+};
+
+// (X.691 10.7)
+template<class IE>
+struct Integer<IE, std::enable_if_t<IE::constraint_t::type == constraint_type::SEMICONSTRAINED> >
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ if(IE::constraint_t::is_extended(ie.get()))
+ {
+ ctx.refErrorCtx().valueRangeError(static_cast<size_t>(ie.get()));
+ return;
+ }
+ NonnegativeBinaryInteger<typename IE::constraint_t>::run(ie.get() - IE::constraint_t::lower_bound, ctx);
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ typename IE::value_type val = 0;
+ NonnegativeBinaryInteger<typename IE::constraint_t>::run(val, ctx, false);
+ ie.set(IE::constraint_t::lower_bound + val);
+ }
+};
+
+template<class IE>
+struct Integer<IE, std::enable_if_t<IE::constraint_t::type == constraint_type::SEMICONSTRAINED_EXTENDED> >
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ if (!IE::constraint_t::is_extended(ie.get()))
+ {
+ Tools::bit_accessor::put(0, 1, ctx.refBuffer());
+ NonnegativeBinaryInteger<typename IE::constraint_t>::run(ie.get() - IE::constraint_t::lower_bound, ctx);
+ }
+ else
+ {
+ Tools::bit_accessor::put(1, 1, ctx.refBuffer());
+ TwosComplementBinaryInteger<IE>::run(ie, ctx);
+ }
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ u8 ext = Tools::bit_accessor::get(1, ctx.refBuffer());
+
+ if (ext)
+ TwosComplementBinaryInteger<IE>::run(ie, ctx);
+ else
+ {
+ typename IE::value_type val = 0;
+ NonnegativeBinaryInteger<typename IE::constraint_t>::run(val, ctx, false);
+ ie.set(val + IE::constraint_t::lower_bound);
+ }
+ }
+};
+
+/***************************************************************************************
+* Encoding of an unconstrained whole number (X.691 10.8)
+***************************************************************************************/
+
+template<class IE>
+struct Integer<IE, std::enable_if_t<IE::constraint_t::type == constraint_type::UNCONSTRAINED> >
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ TwosComplementBinaryInteger<IE>::run(ie, ctx);
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ TwosComplementBinaryInteger<IE>::run(ie, ctx);
+ }
+};
+
+} //namespace per
+} //namespace asn
+