cargo_manifest_proc_macros/
syn_utils.rs

1use proc_macro2::Span;
2use syn::token::PathSep;
3
4/// Converts a crate name to a global [`syn::Path`].
5/// It transforms '-' to '_' and adds a leading colon.
6///
7/// Note: This does not resolve the crate name to a path.
8#[must_use = "This function returns the path to the crate as a syn::Path"]
9pub fn crate_name_to_syn_path(crate_name: &str) -> syn::Path {
10  let crate_name = crate_name.replace('-', "_");
11  let mut path = syn::Path::from(syn::Ident::new(&crate_name, Span::call_site()));
12  path.leading_colon = Some(PathSep::default());
13  path
14}
15
16/// Pretty format a [`syn::Path`] as a string.
17#[must_use = "This function returns the formatted path as a string"]
18pub fn pretty_format_syn_path(path: &syn::Path) -> String {
19  let mut path_str = String::new();
20  let has_leading_colon = path.leading_colon.is_some();
21  if has_leading_colon {
22    path_str.push_str("::");
23  }
24  for segment in &path.segments {
25    path_str.push_str(&segment.ident.to_string());
26    path_str.push_str("::");
27  }
28  path_str.truncate(path_str.len() - 2);
29  path_str
30}
cargo_manifest_proc_macros/syn_utils.rs

cargo_manifest_proc_macros/
syn_utils.rs
