bjoernager/rust
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refactor: use by-ref TokenTree iterator to avoid a few clones

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This commit is contained in:
Caleb Cartwright 2023-05-11 21:51:41 -05:00
parent 5b24e12785
commit 05c5df5682
3 changed files with 6 additions and 6 deletions
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2
compiler/rustc_builtin_macros/src/concat_idents.rs
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@ -19,7 +19,7 @@ pub fn expand_concat_idents<'cx>(
}
let mut res_str = String::new();
for (i, e) in tts.into_trees().enumerate() {
for (i, e) in tts.trees().enumerate() {
if i & 1 == 1 {
match e {
TokenTree::Token(Token { kind: token::Comma, .. }, _) => {}

2
compiler/rustc_builtin_macros/src/trace_macros.rs
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@ -8,7 +8,7 @@ pub fn expand_trace_macros(
sp: Span,
tt: TokenStream,
) -> Box<dyn base::MacResult + 'static> {
let mut cursor = tt.into_trees();
let mut cursor = tt.trees();
let mut err = false;
let value = match &cursor.next() {
Some(TokenTree::Token(token, _)) if token.is_keyword(kw::True) => true,