allow maximization goal functions

textattack/shared/checkpoint.py

@@ -5,6 +5,7 @@ import pickle
 import time
 
 from textattack.attack_results import (
+    MaximizedAttackResult,
     FailedAttackResult,
     SkippedAttackResult,
     SuccessfulAttackResult,
@@ -101,6 +102,11 @@ class Checkpoint:
                 f"(Number of failed attacks): {self.num_failed_attacks}", 2
             )
         )
+        breakdown_lines.append(
+            utils.add_indent(
+                f"(Number of maximized attacks): {self.num_maximized_attacks}", 2
+            )
+        )
         breakdown_lines.append(
             utils.add_indent(
                 f"(Number of skipped attacks): {self.num_skipped_attacks}", 2
@@ -140,6 +146,12 @@ class Checkpoint:
             isinstance(r, SuccessfulAttackResult) for r in self.log_manager.results
         )
 
+    @property
+    def num_maximized_attacks(self):
+        return sum(
+            isinstance(r, MaximizedAttackResult) for r in self.log_manager.results
+        )
+    
     @property
     def num_remaining_attacks(self):
         if self.args.attack_n: