Module util 

Small cross-cutting helpers used by multiple macro modules.

Functions

extract_cfg_attrs 🔒

Extract #[cfg(...)] attributes from a list of attributes.

r_wrapper_raw_literal 🔒

Build a TokenStream containing a raw string literal from an R wrapper string.

raw_string_hashes 🔒

How many # a raw string literal holding s needs: one more than the longest run of # that follows a " in s.

resolve_self 🔒

Rewrites a leading Self in path to type_ident: a path an attribute names (#[r_data(get = "Self::f")], fallback = "Self::f") is called from a free function the macro emits outside any impl, where Self means nothing.

source_location_doc 🔒

Format a human-readable source location note from a syntax span.