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