Increase buffer size to 1 << 16

Also improve camel case script

tools/check_snake_case.py

@@ -42,6 +42,7 @@ def get_modified_lines(filepath):
 def check_snake_case_violations(filepath, check_new_only=True):
     """Check for camelCase violations in C++ code."""
     violations = []
+    seen_violations = {}  # key: (file, line, col), value: camelCase name
 
     # Get modified lines if checking new code only
     modified_lines = get_modified_lines(filepath) if check_new_only else None
@@ -107,17 +108,25 @@ def check_snake_case_violations(filepath, check_new_only=True):
                     "([a-z0-9])([A-Z])", r"\1_\2", camel_case_name
                 ).lower()
 
-                violations.append(
-                    {
-                        "file": filepath,
-                        "line": line_num,
-                        "column": match.start(1) + 1,
-                        "type": violation_type,
-                        "camelCase": camel_case_name,
-                        "snake_case": snake_case,
-                        "context": line.strip(),
-                    }
-                )
+                key = (filepath, line_num, match.start(1) + 1)
+
+                # Only add if we haven't seen this exact violation before
+                if (
+                    key not in seen_violations
+                    or seen_violations[key] != camel_case_name
+                ):
+                    seen_violations[key] = camel_case_name
+                    violations.append(
+                        {
+                            "file": filepath,
+                            "line": line_num,
+                            "column": match.start(1) + 1,
+                            "type": violation_type,
+                            "camelCase": camel_case_name,
+                            "snake_case": snake_case,
+                            "context": line.strip(),
+                        }
+                    )
 
     return violations
 
@@ -145,11 +154,9 @@ def main():
         violations = check_snake_case_violations(filepath, args.check_new_code_only)
 
         if violations:
-            print(f"\n❌ {filepath}:")
             for v in violations:
-                print(
-                    f"  Line {v['line']}:{v['column']} - {v['type']} '{v['camelCase']}' should be '{v['snake_case']}'"
-                )
+                print(f"\n❌ {filepath}:{v['line']}:{v['column']}")
+                print(f"  {v['type']} '{v['camelCase']}' should be '{v['snake_case']}'")
                 print(f"    Context: {v['context']}")
             total_violations += len(violations)