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generate_method_match_arg_helpers

miniextendr_macros::miniextendr_impl

Function generate_method_match_arg_helpers 

Source 
fn generate_method_match_arg_helpers(
    parsed_impl: &ParsedImpl,
    method: &ParsedMethod,
) -> TokenStream
Expand description

Generate __match_arg_choices__<param> helper C wrappers plus the two linkme registrations (MX_CALL_DEFS and MX_MATCH_ARG_CHOICES) per match_arg parameter.

Mirrors the standalone-fn emission in lib.rs so both surfaces resolve through the same runtime paths — C_*__match_arg_choices__* is called from R’s prelude, and MX_MATCH_ARG_CHOICES drives write-time placeholder substitution when the cdylib emits the final R wrapper file.