Refactor token collection to capture trailing token immediately

2021-01-14 10:42:01 -05:00
parent dc1eee2f25
commit ccfc292999
5 changed files with 124 additions and 118 deletions
--- a/compiler/rustc_parse/src/lib.rs
+++ b/compiler/rustc_parse/src/lib.rs
@@ -292,7 +292,7 @@ pub fn nt_to_tokenstream(
    } else if matches!(synthesize_tokens, CanSynthesizeMissingTokens::Yes) {
        return fake_token_stream(sess, nt);
    } else {
-        panic!("Missing tokens for nt {:?}", pprust::nonterminal_to_string(nt));
+        panic!("Missing tokens for nt at {:?}: {:?}", nt.span(), pprust::nonterminal_to_string(nt));
    }
 }