Module vtable 

Vtable static generation, C wrapper generation, and method attribute parsing for trait impls.

This module contains the core codegen for #[miniextendr] on impl Trait for Type blocks. It produces the vtable static constant, C-callable wrapper functions for each method and associated constant, and delegates to super::r_wrappers for R wrapper code generation.

Structs

TraitMethodAttrs 🔒

Parsed #[miniextendr(...)] attributes for a single trait method.

Functions

extract_consts 🔒

Extract associated constant items from a trait impl block.

extract_methods 🔒

Extract all methods from a trait impl block as TraitMethod structs.

generate_concrete_vtable_shims 🔒

Generate concrete vtable shims for a generic trait impl.

generate_trait_const_c_wrapper 🔒

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

generate_trait_method_c_wrapper 🔒

Generate a C wrapper function and R_CallMethodDef for a single trait method.

generate_vtable_static 🔒

Generate the vtable static, C wrappers, R wrappers, and call defs for a trait implementation.

is_self_ref_type 🔒

Check if a type is &Self or &mut Self.

output_is_result 🔒

Returns true when the return type is syntactically Result<_, _>.

parse_trait_method_attrs 🔒

Parse #[miniextendr(...)] attributes from a trait method.