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405613ebb5
The `Item` class methods `get_copy()`, `build_clone()`, and `clone_item()` face an issue where they may be defined in a descendant class (e.g., `Item_func`) but not in a further descendant (e.g., `Item_func_child`). This can lead to scenarios where `build_clone()`, when operating on an instance of `Item_func_child` with a pointer to the base class (`Item`), returns an instance of `Item_func` instead of `Item_func_child`. Since this limitation cannot be resolved at compile time, this commit introduces runtime type checks for the copy/clone operations. A debug assertion will now trigger in case of a type mismatch. `get_copy()`, `build_clone()`, and `clone_item()` are no more virtual, but virtual `do_get_copy()`, `do_build_clone()`, and `do_clone_item()` are added to the protected section of the class `Item`. Additionally, const qualifiers have been added to certain methods to enhance code reliability. Reviewer: Oleksandr Byelkin <sanja@mariadb.com> |
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| .. | ||
| audit_null | ||
| auth_dialog | ||
| auth_ed25519 | ||
| auth_examples | ||
| auth_gssapi | ||
| auth_pam | ||
| auth_pipe | ||
| auth_socket | ||
| aws_key_management | ||
| cracklib_password_check | ||
| daemon_example | ||
| debug_key_management | ||
| disks | ||
| example_key_management | ||
| feedback | ||
| file_key_management | ||
| fulltext | ||
| func_test | ||
| handler_socket | ||
| locale_info | ||
| metadata_lock_info | ||
| qc_info | ||
| query_response_time | ||
| server_audit | ||
| simple_password_check | ||
| sql_errlog | ||
| test_sql_service | ||
| type_geom | ||
| type_inet | ||
| type_mysql_json | ||
| type_test | ||
| user_variables | ||
| userstat | ||
| versioning | ||
| win_auth_client | ||
| wsrep_info | ||