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path: root/compiler/rustc_parse/src/parser/expr.rs
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-rw-r--r--compiler/rustc_parse/src/parser/expr.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index 8ac29c2b5f6..8c4ec8dc6e3 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -269,6 +269,7 @@ impl<'a> Parser<'a> {
 
             if self.prev_token == token::BinOp(token::Plus)
                 && self.token == token::BinOp(token::Plus)
+                && self.prev_token.span.between(self.token.span).is_empty()
             {
                 let op_span = self.prev_token.span.to(self.token.span);
                 // Eat the second `+`