fix format

src/frontend/src/binder/expr/mod.rs

@@ -508,7 +508,10 @@ impl Binder {
         }
 
         // Otherwise this will eventually go through fallback arm
-        debug_assert!(constant_case_when_eval_inputs.is_empty(), "expect `inputs` to be empty");
+        debug_assert!(
+            constant_case_when_eval_inputs.is_empty(),
+            "expect `inputs` to be empty"
+        );
 
         let Some(fallback) = fallback else {
             return false;
@@ -602,7 +605,11 @@ impl Binder {
         );
 
         if constant_case_when_flag {
-            return Ok(FunctionCall::new(ExprType::ConstantLookup, constant_case_when_eval_inputs)?.into());
+            return Ok(FunctionCall::new(
+                ExprType::ConstantLookup,
+                constant_case_when_eval_inputs,
+            )?
+            .into());
         }
 
         // See if the case-when expression can be optimized

src/frontend/src/optimizer/plan_expr_rewriter/const_case_when_rewriter.rs

@@ -14,7 +14,7 @@
 
 use risingwave_common::error::RwError;
 
-use crate::expr::{ExprImpl, ExprRewriter, FunctionCall, ExprType};
+use crate::expr::{ExprImpl, ExprRewriter, ExprType, FunctionCall};
 
 pub struct ConstCaseWhenRewriter {
     pub error: Option<RwError>,
@@ -31,4 +31,4 @@ impl ExprRewriter for ConstCaseWhenRewriter {
         }
         func_call.inputs()[0].clone().into()
     }
-}
+}

src/frontend/src/optimizer/plan_expr_rewriter/mod.rs

@@ -12,10 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+mod const_case_when_rewriter;
 mod const_eval_rewriter;
 mod cse_rewriter;
-mod const_case_when_rewriter;
 
+pub(crate) use const_case_when_rewriter::ConstCaseWhenRewriter;
 pub(crate) use const_eval_rewriter::ConstEvalRewriter;
 pub(crate) use cse_rewriter::CseRewriter;
-pub(crate) use const_case_when_rewriter::ConstCaseWhenRewriter;

src/frontend/src/optimizer/rule/const_case_when_eval_rule.rs

@@ -29,4 +29,4 @@ impl ConstCaseWhenEvalRule {
     pub fn create() -> BoxedRule {
         Box::new(ConstCaseWhenEvalRule {})
     }
-}
+}