[−][src]Macro glsp::rfn
Wrap a function pointer or closure so that it can be passed to glsp::rfn
and similar functions.
The macro receives a single argument, which must be the path to a function, the path to a method, or an expression which evaluates to a non-capturing closure.
The return value is a WrappedFn
. This is an opaque type: it doesn't
support any operations except being converted to an RFn
.
In effect, this macro takes an arbitrary Rust function and converts it into a type-erased
function pointer which can be called by GameLisp. The function's return value must implement
IntoResult
, and all of its arguments must implement
MakeArg
.