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authorNicholas Nethercote <n.nethercote@gmail.com>2023-09-06 16:45:58 +1000
committerNicholas Nethercote <n.nethercote@gmail.com>2023-09-06 17:12:07 +1000
commit42dbc72d7bb0645292d72816d768d1f5365a58ca (patch)
tree45d037636391edfe45fb34e5598a27177690d85f /compiler/rustc_parse/src/parser
parent58e967a9cc3bd39122e8cb728e8cec6e3a4eeef2 (diff)
downloadrust-42dbc72d7bb0645292d72816d768d1f5365a58ca.tar.gz
rust-42dbc72d7bb0645292d72816d768d1f5365a58ca.zip
Adjust `to_attr_token_stream`.
It uses `once` chained with `(0..self.num_calls).map(...)` followed by
`.take(self.num_calls`. I found this hard to read. It's simpler to just
use `repeat_with`.
Diffstat (limited to 'compiler/rustc_parse/src/parser')
-rw-r--r--compiler/rustc_parse/src/parser/attr_wrapper.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_parse/src/parser/attr_wrapper.rs b/compiler/rustc_parse/src/parser/attr_wrapper.rs
index 5d6c574baa6..c4e8d9006e6 100644
--- a/compiler/rustc_parse/src/parser/attr_wrapper.rs
+++ b/compiler/rustc_parse/src/parser/attr_wrapper.rs
@@ -106,7 +106,7 @@ impl ToAttrTokenStream for LazyAttrTokenStreamImpl {
         let mut cursor_snapshot = self.cursor_snapshot.clone();
         let tokens =
             std::iter::once((FlatToken::Token(self.start_token.0.clone()), self.start_token.1))
-                .chain((0..self.num_calls).map(|_| {
+                .chain(std::iter::repeat_with(|| {
                     let token = cursor_snapshot.next();
                     (FlatToken::Token(token.0), token.1)
                 }))