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-rw-r--r--src/tools/rust-analyzer/crates/syntax/src/ast/expr_ext.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/expr_ext.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/expr_ext.rs
index 6ed205e2856..f3053f59836 100644
--- a/src/tools/rust-analyzer/crates/syntax/src/ast/expr_ext.rs
+++ b/src/tools/rust-analyzer/crates/syntax/src/ast/expr_ext.rs
@@ -232,6 +232,10 @@ impl ast::RangeExpr {
             Some((ix, token, bin_op))
         })
     }
+
+    pub fn is_range_full(&self) -> bool {
+        support::children::<Expr>(&self.syntax).next().is_none()
+    }
 }
 
 impl RangeItem for ast::RangeExpr {