//! A set of utils methods to reuse on other abstraction levels use itertools::Itertools; use crate::{ast, match_ast, AstNode}; pub fn path_to_string_stripping_turbo_fish(path: &ast::Path) -> String { path.syntax() .children() .filter_map(|node| { match_ast! { match node { ast::PathSegment(it) => { Some(it.name_ref()?.to_string()) }, ast::Path(it) => { Some(path_to_string_stripping_turbo_fish(&it)) }, _ => None, } } }) .join("::") } #[cfg(test)] mod tests { use super::path_to_string_stripping_turbo_fish; use crate::ast::make; #[test] fn turbofishes_are_stripped() { assert_eq!("Vec", path_to_string_stripping_turbo_fish(&make::path_from_text("Vec::<i32>")),); assert_eq!( "Vec::new", path_to_string_stripping_turbo_fish(&make::path_from_text("Vec::<i32>::new")), ); assert_eq!( "Vec::new", path_to_string_stripping_turbo_fish(&make::path_from_text("Vec::new()")), ); } }