Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/proc-macro-test/imp/src/lib.rs')
| -rw-r--r-- | crates/proc-macro-test/imp/src/lib.rs | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/crates/proc-macro-test/imp/src/lib.rs b/crates/proc-macro-test/imp/src/lib.rs index f74d04729b..0082eb7bda 100644 --- a/crates/proc-macro-test/imp/src/lib.rs +++ b/crates/proc-macro-test/imp/src/lib.rs @@ -2,7 +2,7 @@ #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] -use proc_macro::{Group, Ident, Punct, TokenStream, TokenTree}; +use proc_macro::{Group, Ident, Literal, Punct, TokenStream, TokenTree}; #[proc_macro] pub fn fn_like_noop(args: TokenStream) -> TokenStream { @@ -71,6 +71,12 @@ fn clone_tree(t: TokenTree) -> TokenTree { new.set_span(orig.span()); TokenTree::Punct(new) } - TokenTree::Literal(_orig) => unimplemented!(), + TokenTree::Literal(orig) => { + // this goes through `literal_from_str` as of 2022-07-18, cf. + // https://github.com/rust-lang/rust/commit/b34c79f8f1ef4d0149ad4bf77e1759c07a9a01a8 + let mut new: Literal = orig.to_string().parse().unwrap(); + new.set_span(orig.span()); + TokenTree::Literal(new) + } } } |