Antmicro.Migrant.Generators.WriterGenerationContext.PushPrimitiveWriterOntoStack C# (CSharp) Method

        public void PushPrimitiveWriterOntoStack()
        {
            PushObjectWriterOntoStack();
            generator.PushFieldValueOntoStack<ObjectWriter, PrimitiveWriter>(x => x.writer);
        }

        private static void GenerateWriteValue(WriterGenerationContext context, Variable valueLocal, Type formalType)
        {
            ObjectWriter.CheckLegality(formalType);
            if (formalType.IsEnum)
            {
                formalType = Enum.GetUnderlyingType(formalType);
            }
            var writeMethod = typeof(PrimitiveWriter).GetMethod("Write", new[] { formalType });

            // if this method is null, then it is a non-primitive (i.e. custom) struct
            if (writeMethod != null)
            {
                context.PushPrimitiveWriterOntoStack();
                context.Generator.PushVariableOntoStack(valueLocal);
                context.Generator.Emit(OpCodes.Call, writeMethod);
                return;
            }
            var nullableUnderlyingType = Nullable.GetUnderlyingType(formalType);

            if (nullableUnderlyingType != null)
            {
                var hasValueLabel = context.Generator.DefineLabel();
                var finishLabel   = context.Generator.DefineLabel();

                var underlyingValueLocal = context.Generator.DeclareLocal(nullableUnderlyingType);
                var underlyingVariable   = new Variable(underlyingValueLocal);

                context.PushPrimitiveWriterOntoStack();
                context.Generator.PushVariableAddressOntoStack(valueLocal);
                context.Generator.Emit(OpCodes.Call, formalType.GetProperty("HasValue").GetGetMethod());
                context.Generator.Emit(OpCodes.Brtrue_S, hasValueLabel);
                context.Generator.PushIntegerOntoStack(0);
                context.Generator.Call <PrimitiveWriter>(x => x.Write(false));
                context.Generator.Emit(OpCodes.Br_S, finishLabel);

                context.Generator.MarkLabel(hasValueLabel);
                context.Generator.PushIntegerOntoStack(1);
                context.Generator.Call <PrimitiveWriter>(x => x.Write(false));

                context.Generator.PushVariableAddressOntoStack(valueLocal);
                context.Generator.Emit(OpCodes.Call, formalType.GetProperty("Value").GetGetMethod());
                context.Generator.StoreLocalValueFromStack(underlyingValueLocal);

                GenerateWriteValue(context, underlyingVariable, nullableUnderlyingType);

                context.Generator.MarkLabel(finishLabel);
                return;
            }

            GenerateWriteFields(context, valueLocal, formalType);
        }