Default impls

Author: gzanitti

crates/stark-backend/tests/fib_selector_air/air.rs

@@ -41,7 +41,7 @@ impl<F: Field> BaseAir<F> for FibonacciSelectorAir {
     }
 }
 
-impl<F> ColumnsAir<F> for FibonacciSelectorAir {}
+impl<F: Field> ColumnsAir<F> for FibonacciSelectorAir {}
 
 impl<F: Field> BaseAirWithPublicValues<F> for FibonacciSelectorAir {
     fn num_public_values(&self) -> usize {

crates/stark-backend/tests/fib_triples_air/air.rs

@@ -15,11 +15,7 @@ impl<F> BaseAir<F> for FibonacciAir {
     }
 }
 
-impl<F> ColumnsAir<F> for FibonacciAir {
-    fn columns(&self) -> Option<Vec<String>> {
-        None
-    }
-}
+impl<F> ColumnsAir<F> for FibonacciAir {}
 
 impl<F> BaseAirWithPublicValues<F> for FibonacciAir {
     fn num_public_values(&self) -> usize {

crates/stark-backend/tests/partitioned_sum_air/air.rs

@@ -29,11 +29,7 @@ impl<F> BaseAir<F> for SumAir {
     }
 }
 
-impl<F> ColumnsAir<F> for SumAir {
-    fn columns(&self) -> Option<Vec<String>> {
-        None
-    }
-}
+impl<F> ColumnsAir<F> for SumAir {}
 
 impl<AB: PartitionedAirBuilder> Air<AB> for SumAir {
     fn eval(&self, builder: &mut AB) {

crates/stark-sdk/src/dummy_airs/fib_air/air.rs

@@ -24,11 +24,7 @@ impl<F> BaseAirWithPublicValues<F> for FibonacciAir {
     }
 }
 
-impl<F> ColumnsAir<F> for FibonacciAir {
-    fn columns(&self) -> Option<Vec<String>> {
-        None
-    }
-}
+impl<F> ColumnsAir<F> for FibonacciAir {}
 
 impl<AB: AirBuilderWithPublicValues> Air<AB> for FibonacciAir {
     fn eval(&self, builder: &mut AB) {

crates/stark-sdk/src/dummy_airs/interaction/dummy_interaction_air.rs

@@ -45,11 +45,7 @@ pub struct DummyInteractionAir {
     pub partition: bool,
 }
 
-impl<F: Field> ColumnsAir<F> for DummyInteractionAir {
-    fn columns(&self) -> Option<Vec<String>> {
-        None
-    }
-}
+impl<F: Field> ColumnsAir<F> for DummyInteractionAir {}
 
 impl DummyInteractionAir {
     pub fn new(field_width: usize, is_send: bool, bus_index: BusIndex) -> Self {