bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Rollup merge of #136355 - GuillaumeGomez:proc-macro_add_value_retrieval_methods, r=Amanieu

Browse source 
Add `*_value` methods to proc_macro lib

This is the implementation of https://github.com/rust-lang/libs-team/issues/459.

It allows to get the actual value (unescaped) of the different string literals.

Part of https://github.com/rust-lang/rust/issues/136652.

r? libs-api
This commit is contained in:
Jacob Pratt 2025-03-17 05:47:48 -04:00 • committed by GitHub
commit 08dfbf49e3
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
27 changed files with 253 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

11
compiler/rustc_parse_format/src/lib.rs
View file

@ -18,7 +18,6 @@
pub use Alignment::*;
pub use Count::*;
pub use Position::*;
use rustc_lexer::unescape;
// Note: copied from rustc_span
/// Range inside of a `Span` used for diagnostics when we only have access to relative positions.
@ -1094,12 +1093,14 @@ fn find_width_map_from_snippet(
fn unescape_string(string: &str) -> Option<String> {
let mut buf = String::new();
let mut ok = true;
unescape::unescape_unicode(string, unescape::Mode::Str, &mut |_, unescaped_char| {
match unescaped_char {
literal_escaper::unescape_unicode(
string,
literal_escaper::Mode::Str,
&mut |_, unescaped_char| match unescaped_char {
Ok(c) => buf.push(c),
Err(_) => ok = false,
}
});
},
);
ok.then_some(buf)
}