What is allowed or not in kernels?

[weierstrass1]

I have a question, when you do a kernel, what is allowed?

for example can kernel:

• call functions of static classes?
• use Convert._(param) (for example Convert.Int32(foo))
• use custom classes or structs?
• use local parameters if it is called into a method?
• use class variables if it is called into a class?
  etc...

[m4rs-mt]

@weierstrass1 Kernels can call other static functions and "instantiate" other (user-defined) structure types. Reference types (such as strings) are not supported, since they generally require heap-based memory management. There will be limited support for class types in the future. A selection of different functions and examples can be found in the samples repository.