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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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8
compiler/rustc_lint/src/builtin.rs
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@ -1882,8 +1882,8 @@ declare_lint_pass!(
struct UnderMacro(bool);
impl KeywordIdents {
fn check_tokens(&mut self, cx: &EarlyContext<'_>, tokens: TokenStream) {
for tt in tokens.into_trees() {
fn check_tokens(&mut self, cx: &EarlyContext<'_>, tokens: &TokenStream) {
for tt in tokens.trees() {
match tt {
// Only report non-raw idents.
TokenTree::Token(token, _) => {
@ -1944,10 +1944,10 @@ impl KeywordIdents {
impl EarlyLintPass for KeywordIdents {
fn check_mac_def(&mut self, cx: &EarlyContext<'_>, mac_def: &ast::MacroDef) {
self.check_tokens(cx, mac_def.body.tokens.clone());
self.check_tokens(cx, &mac_def.body.tokens);
}
fn check_mac(&mut self, cx: &EarlyContext<'_>, mac: &ast::MacCall) {
self.check_tokens(cx, mac.args.tokens.clone());
self.check_tokens(cx, &mac.args.tokens);
}
fn check_ident(&mut self, cx: &EarlyContext<'_>, ident: Ident) {
self.check_ident_token(cx, UnderMacro(false), ident);