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/// Transform Rust paths to a readable and comparable string.
///
/// # Limitations
/// * Leading colons are ignored.
/// * Angle brackets and `as` elements are ignored.
///
/// # Example
/// ```rust
/// # use darling_core::util::path_to_string;
/// # use syn::parse_quote;
/// assert_eq!(path_to_string(&parse_quote!(a::b)), "a::b");
/// ```
pub fn path_to_string(path: &syn::Path) -> String {
path.segments
.iter()
.map(|s| s.ident.to_string())
.collect::<Vec<String>>()
.join("::")
}
#[cfg(test)]
mod tests {
use syn::parse_quote;
use super::path_to_string;
#[test]
fn simple_ident() {
assert_eq!(path_to_string(&parse_quote!(a)), "a");
}
#[test]
fn simple_path() {
assert_eq!(path_to_string(&parse_quote!(a::b)), "a::b");
}
}