syntactic changes: rewrite loop with while

bindings/python/src/lib.rs

@@ -101,17 +101,16 @@ impl Cursor {
         // For DDL and DML statements,
         // we need to execute the statement immediately
         if stmt_is_ddl || stmt_is_dml {
-            loop {
-                match stmt.borrow_mut().step().map_err(|e| {
-                    PyErr::new::<OperationalError, _>(format!("Step error: {:?}", e))
-                })? {
-                    limbo_core::StepResult::IO => {
-                        self.conn.io.run_once().map_err(|e| {
-                            PyErr::new::<OperationalError, _>(format!("IO error: {:?}", e))
-                        })?;
-                    }
-                    _ => break,
-                }
+            while stmt
+                .borrow_mut()
+                .step()
+                .map_err(|e| PyErr::new::<OperationalError, _>(format!("Step error: {:?}", e)))?
+                .eq(&limbo_core::StepResult::IO)
+            {
+                self.conn
+                    .io
+                    .run_once()
+                    .map_err(|e| PyErr::new::<OperationalError, _>(format!("IO error: {:?}", e)))?;
             }
         }
 

core/lib.rs

@@ -474,6 +474,7 @@ impl Statement {
     }
 }
 
+#[derive(PartialEq)]
 pub enum StepResult<'a> {
     Row(Row<'a>),
     IO,
@@ -482,6 +483,7 @@ pub enum StepResult<'a> {
     Busy,
 }
 
+#[derive(PartialEq)]
 pub struct Row<'a> {
     pub values: Vec<Value<'a>>,
 }