public static BlobDeserializer BuildDeserializer(IBlobSerializer source)
{
JITContext ctx = new JITContext(source.ExpectedType);
source.EmitRead(ctx);
ctx.Return();
return((BlobDeserializer)ctx.method.CreateDelegate(typeof(BlobDeserializer)));
}
public void EmitRead(JITContext context)
{
context.LoadLocal(context.PeekTypeDef());
if (from is ListSerializer || from is DictionarySerializer)
{
context.CreateType(field.FieldType);
context.PushType(field.FieldType);
context.PushTypeDef(context.PeekTop(field.FieldType));
context.LoadLocal(context.PeekTop(field.FieldType));
context.StoreField(field);
from.EmitRead(context);
context.PopTypeDef();
context.PopType(field.FieldType);
}
else
{
from.EmitRead(context);
context.StoreField(field);
}
}
public void EmitRead(JITContext context)
{
context.ReadFieldBlob();
context.PushType(typeof(BlobReader));
Label readField = context.CreateLabel();
Label cleanup = context.CreateLabel();
context.MarkLabel(readField);
context.CanReadBytes(BlobReader.FieldHeaderLength);
context.GotoWhenFalse(cleanup);
context.ReadFieldHeader();
context.LoadLocal(context.PeekTypeDef());
switch (Type.GetTypeCode(leftType))
{
case TypeCode.Int32:
context.LoadByteKey();
context.LoadIntConstant(0);
context.BitConvertTo("Int32");
break;
case TypeCode.String:
context.PushUTF8Encoding();
context.LoadByteKey();
context.LoadIntConstant(0);
context.GetFieldKeyBytes();
context.ByteConvertToString();
break;
default:
throw new NotImplementedException();
}
from.EmitRead(context);
context.EmitCall(add);
context.Goto(readField);
context.MarkLabel(cleanup);
context.SkipSpare();
context.DisposeReaderOnTop();
context.PopType(typeof(BlobReader));
}
public void EmitRead(JITContext context)
{
context.ReadFieldBlob();
context.PushType(typeof(BlobReader));
Label readField = context.CreateLabel();
Label cleanup = context.CreateLabel();
context.MarkLabel(readField);
context.CanReadBytes(BlobReader.FieldHeaderLength);
context.GotoWhenFalse(cleanup);
context.ReadFieldHeader();
context.LoadLocal(context.PeekTypeDef());
// is this a safe optimization?
if (from.ExpectedType.IsValueType)
{
context.LoadByteKey();
context.LoadIntConstant(0);
context.BitConvertTo("Int32");
context.EmitCall(add);
context.Goto(readField);
}
else
{
from.EmitRead(context);
context.EmitCall(add);
context.Goto(readField);
}
context.MarkLabel(cleanup);
context.SkipSpare();
context.DisposeReaderOnTop();
context.PopType(typeof(BlobReader));
}
public static BlobDeserializer BuildDeserializer(IBlobSerializer source)
{
JITContext ctx = new JITContext(source.ExpectedType);
source.EmitRead(ctx);
ctx.Return();
return (BlobDeserializer)ctx.method.CreateDelegate(typeof(BlobDeserializer));
}
