- Created: 07 December 2018
A short message to inform you of things we are working on this moment.
- We are making good progress with the new macro compiler. Most of the features are ready. And performance is very good !
- We have located and fixed almost all of the issues (some of) you have reported with the X# runtime
- We have added support in the compiler for the Xbase++ dialect.
- We have fixed many things in the VS integration. And X# also installs and works with the new Visual Studion 2019 preview
- We have also rearranged the runtime to better support the Xbase++dialect. There is now a separate VO assembly and a XPP assembly. Both share a common RT assembly that contains the common code (such as the USUAL, DATE and FLOAT types)
- We have updated the compiler to the latest version of the Roslyn source code. As a result we have new features (such as the ability to generate reference assemblies ), the new combination of "PRIVATE PROTECTED" which makes a type member only accessible for derived classes in the same assembly and more.
We have not enabled all the new features of the latest C# versions yet. For some of them we still have to invent a syntax. We are considering to add the IN modifier for parameters in one of the next builds. This will declare a readonly reference parameter. This is especially useful when you have a structure as parameter of a method (like the FLOAT or USUAL structures in the runtime). This should result in somewhat faster execution speed since at runtime not the whole structure has to be passed to a function or method, but only the address of the structure. Once we have added this to the compiler then we will also start to use this in the runtime.
There are many other new features added to Roslyn. You can look at this page to see the new features in C# in the last versions.
If you see something that you think is useful for X#, please let us know. And if you have a suggestion for a syntax, that helps too. One other thing we are thinking about is the "is pattern", which combines the "IS" check with the "ASTYPE" operation and creates a variable that has the scope of the IF expression that it is part of :
IF oServer IS DbServer oDbServer
oDbServer:GoTop() /// <- this will generate a compiler error because the scope of oDbServer is the statementblock inside the IF expression
We expect a new FOX release of the product by the end of next week. A public release will follow short before Christmas