Example #1
0
        private static void EmitEncodeDirect(IEmittingContext emittingContext, HandlerParameterCodec[] responseParameterCodecs, Type retvalType)
        {
            var  il        = emittingContext.IL;
            bool hasRetval = retvalType != typeof(void);

            if (hasRetval || responseParameterCodecs.Any())
            {
                HandlerRetvalCodec retvalCodec = null;

                if (hasRetval)
                {
                    retvalCodec = new HandlerRetvalCodec(emittingContext, retvalType);
                    retvalCodec.EmitStore();                                                // var ret = stack_0
                    retvalCodec.EmitCalculateSize();                                        // stack_0 = calculateSize(ret)
                }

                bool hasSizeOnStack = hasRetval;
                foreach (var codec in responseParameterCodecs)
                {
                    codec.EmitCalculateSize();                                              // stack_0 += calculateSize(param_i)
                    EmitAddIf(il, ref hasSizeOnStack);
                }

                var dataArrayVar = il.DeclareLocal(typeof(byte[]));                         // var dataArray = new byte[size of retval]
                il.Newarr(typeof(byte));
                il.Stloc(dataArrayVar);

                var pinnedVar = il.PinArray(typeof(byte), dataArrayVar);                    // var pinned dataPointer = pin(dataArrayVar)
                il.Ldloc(pinnedVar);                                                        // data = dataPointer
                il.Stloc(emittingContext.DataPointerVar);

                foreach (var codec in responseParameterCodecs)
                {
                    codec.EmitEncode();                                                     // encode(data, param_i)
                }
                if (hasRetval)
                {
                    retvalCodec.EmitEncode();                                               // encode(data, ret)
                }
                il.Ldloc(dataArrayVar);                                                     // stack_0 = dataArray
            }
            else
            {
                il.Ldc_I4(0);                                                               // stack_0 = new byte[0]
                il.Newarr(typeof(byte));
            }
        }
Example #2
0
        private static void EmitEncodeDirect(IEmittingContext emittingContext, HandlerParameterCodec[] responseParameterCodecs, Type retvalType)
        {
            var il = emittingContext.IL;
            bool hasRetval = retvalType != typeof(void);

            if (hasRetval || responseParameterCodecs.Any())
            {
                HandlerRetvalCodec retvalCodec = null;

                if (hasRetval)
                {
                    retvalCodec = new HandlerRetvalCodec(emittingContext, retvalType);
                    retvalCodec.EmitStore();                                                // var ret = stack_0
                    retvalCodec.EmitCalculateSize();                                        // stack_0 = calculateSize(ret)
                }

                bool hasSizeOnStack = hasRetval;
                foreach (var codec in responseParameterCodecs)
                {
                    codec.EmitCalculateSize();                                              // stack_0 += calculateSize(param_i)
                    EmitAddIf(il, ref hasSizeOnStack);
                }

                var dataArrayVar = il.DeclareLocal(typeof(byte[]));                         // var dataArray = new byte[size of retval]
                il.Newarr(typeof(byte));
                il.Stloc(dataArrayVar);

                var pinnedVar = il.PinArray(typeof(byte), dataArrayVar);                    // var pinned dataPointer = pin(dataArrayVar)
                il.Ldloc(pinnedVar);                                                        // data = dataPointer
                il.Stloc(emittingContext.DataPointerVar);

                foreach (var codec in responseParameterCodecs)
                    codec.EmitEncode();                                                     // encode(data, param_i)

                if (hasRetval)
                    retvalCodec.EmitEncode();                                               // encode(data, ret)

                il.Ldloc(dataArrayVar);                                                     // stack_0 = dataArray
            }
            else
            {
                il.Ldc_I4(0);                                                               // stack_0 = new byte[0]
                il.Newarr(typeof(byte));
            }
        }