feat(fee): add n_events field to BouncerInfo

crates/blockifier/src/execution/bouncer.rs

@@ -7,12 +7,13 @@ use crate::abi::constants;
 use crate::transaction::objects::{ResourcesMapping, TransactionExecutionResult};
 
 #[derive(Clone, Default)]
-// TODO(Ayelet, 24/01/2024): Consider remove message_segment_length, state_diff_size.
 pub struct BouncerInfo {
     pub state_diff_size: usize, // The number of felts needed to store the state diff.
     pub l1_gas_amount: usize,
     pub message_segment_length: usize, // The number of felts needed to store L1<>L2 messages.
     pub execution_resources: VmExecutionResources,
+    // TODO(Ayelet, 12/02/2024): Fill this field.
+    pub n_events: usize,
 }
 
 impl BouncerInfo {
@@ -66,11 +67,15 @@ impl BouncerInfo {
         merged_resources.n_steps += merged_resources.n_memory_holes;
         merged_resources.n_memory_holes = 0;
 
+        // TODO(Ayelet, 12/02/2024): Fill this field.
+        let n_events = 0;
+
         Ok(Self {
             state_diff_size,
             l1_gas_amount,
             message_segment_length,
             execution_resources: merged_resources,
+            n_events,
         })
     }
 }

crates/native_blockifier/src/py_transaction_execution_info.rs

@@ -227,6 +227,8 @@ pub struct PyBouncerInfo {
     pub message_segment_length: usize, // The number of felts needed to store L1<>L2 messages.
     #[pyo3(get)]
     pub execution_resources: PyExecutionResources,
+    #[pyo3(get)]
+    pub n_events: usize,
 }
 
 impl From<BouncerInfo> for PyBouncerInfo {
@@ -236,6 +238,7 @@ impl From<BouncerInfo> for PyBouncerInfo {
             l1_gas_amount: bouncer_info.l1_gas_amount,
             message_segment_length: bouncer_info.message_segment_length,
             execution_resources: PyExecutionResources::from(bouncer_info.execution_resources),
+            n_events: bouncer_info.n_events,
         }
     }
 }