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Diffstat (limited to 'crates/cfg/src/cfg_expr.rs')
| -rw-r--r-- | crates/cfg/src/cfg_expr.rs | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/crates/cfg/src/cfg_expr.rs b/crates/cfg/src/cfg_expr.rs index 2f1fc8ae49..c5da8443a6 100644 --- a/crates/cfg/src/cfg_expr.rs +++ b/crates/cfg/src/cfg_expr.rs @@ -197,17 +197,18 @@ fn next_cfg_expr(it: &mut tt::iter::TtIter<'_>) -> Option<CfgExpr> { Some(_) => return Some(CfgExpr::Invalid), }; - let ret = match it.peek() { + let mut it_clone = it.clone(); + let ret = match it_clone.next() { Some(TtElement::Leaf(tt::Leaf::Punct(punct))) // Don't consume on e.g. `=>`. if punct.char == '=' && (punct.spacing == tt::Spacing::Alone - || it.remaining().flat_tokens().get(1).is_none_or(|peek2| { - !matches!(peek2, tt::TokenTree::Leaf(tt::Leaf::Punct(_))) + || it_clone.peek().is_none_or(|peek2| { + !matches!(peek2, tt::TtElement::Leaf(tt::Leaf::Punct(_))) })) => { - match it.remaining().flat_tokens().get(1) { - Some(tt::TokenTree::Leaf(tt::Leaf::Literal(literal))) => { + match it_clone.next() { + Some(tt::TtElement::Leaf(tt::Leaf::Literal(literal))) => { it.next(); it.next(); CfgAtom::KeyValue { key: name, value: literal.symbol.clone() }.into() |