private DynamicMethod EmitDecode(bool doNoCheckBounds)
{
const int codecContainerArgIndex = 0;
const int dataArgIndex = 1;
const int remainingBytesArgIndex = 2;
var dynamicMethod = new DynamicMethod("_decode_manual_" + type.FullName + (doNoCheckBounds ? "_dncb_" : ""),
type, new[] { typeof(ICodecContainer), typeof(byte *).MakeByRefType(), typeof(int).MakeByRefType() }, Assembly.GetExecutingAssembly().ManifestModule, true);
var il = new MyILGenerator(dynamicMethod.GetILGenerator());
var context = new ManualCodecEmittingContext(il, codecContainerArgIndex);
il.Ldarg(dataArgIndex);
il.Ldind_I();
il.Stloc(context.DataPointerVar);
il.Ldarg(remainingBytesArgIndex);
il.Ldind_I4();
il.Stloc(context.RemainingBytesVar);
emittingCodec.EmitDecode(context, doNoCheckBounds);
il.Ldarg(dataArgIndex);
il.Ldloc(context.DataPointerVar);
il.Stind_I();
il.Ldarg(remainingBytesArgIndex);
il.Ldloc(context.RemainingBytesVar);
il.Stind_I4();
il.Ret();
return(dynamicMethod);
}
public void EmitDecodeAndStore(IEmittingContext emittingContext)
{
var il = emittingContext.IL;
il.Ldarg(argIndex);
codec.EmitDecode(emittingContext, false);
if (type.IsValueType)
{
il.Stobj(type);
}
else
{
il.Stind_Ref();
}
}
public void EmitDecodeAndPrepare()
{
var il = emittingContext.IL;
switch (way)
{
case MethodParameterWay.Val:
codec.EmitDecode(emittingContext, false);
break;
case MethodParameterWay.Ref:
codec.EmitDecode(emittingContext, false);
il.Stloc(local);
il.Ldloca(local);
break;
case MethodParameterWay.Out:
il.Ldloca(local);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
private DynamicMethod EmitDecode(bool doNoCheckBounds)
{
var dynamicMethod = new DynamicMethod("_decode_manual_" + type.FullName + (doNoCheckBounds ? "_dncb_" : ""),
type, new[] { typeof(byte *).MakeByRefType(), typeof(int).MakeByRefType() }, Assembly.GetExecutingAssembly().ManifestModule, true);
var il = dynamicMethod.GetILGenerator();
var locals = new LocalVariableCollection(il, true);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldind_I);
il.Emit(OpCodes.Stloc, locals.DataPointer);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldind_I4);
il.Emit(OpCodes.Stloc, locals.RemainingBytes);
emittingCodec.EmitDecode(il, locals, doNoCheckBounds);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldloc, locals.DataPointer);
il.Emit(OpCodes.Stind_I);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldloc, locals.RemainingBytes);
il.Emit(OpCodes.Stind_I4);
il.Emit(OpCodes.Ret);
return(dynamicMethod);
}
public void EmitDecode(IEmittingContext emittingContext)
{
codec.EmitDecode(emittingContext, false);
}
