Rust object shorthand syntax in macros

[bvssvni]

Dyon supports a shorthand syntax for Rust objects in the dyon_fn macro:

dyon_fn{fn foo(a: #Foo) {
    ...
}}

• #Foo - by value (requires the Copy trait)
• #&Foo - by reference
• #&mut Foo by mutable reference

One can also use #Foo as return type:

dyon_fn{fn new_foo() -> #Foo { ... }}