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generate_trait_const_c_wrapper

miniextendr_macros::miniextendr_impl_trait::vtable

Function generate_trait_const_c_wrapper 

Source 
pub(super) fn generate_trait_const_c_wrapper(
    trait_const: &TraitConst,
    type_ident: &Ident,
    trait_name: &Ident,
    trait_path: &Path,
) -> TokenStream
Expand description

Generate a C wrapper function and R_CallMethodDef for a trait associated constant.

The generated wrapper takes no arguments and returns the constant value converted to SEXP. Uses fully-qualified syntax <Type as Trait>::CONST to access the value. Always runs on the main thread.