Ruby: Data Fields

Ruby 3.4.9p82 (2026-03-11 revision 76cca827ab52ab1d346a728f068d5b8da3e2952b)

Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

### - m -

- magic_comment_list : pm_parser
- main_script : pm_options
- mark : rb_ractor_local_storage_type
- match : parse_regular_expression_named_capture_data_t
- maxfd : rb_fdset_t
- maximum : pm_numbered_parameters_node
- message : pm_diagnostic_data_t, pm_diagnostic_t
- message_loc : pm_call_and_write_node, pm_call_node, pm_call_operator_write_node, pm_call_or_write_node, pm_call_target_node
- mode : pm_lex_mode, rb_io
- module_keyword_loc : pm_module_node
- module_subclass_entry : rb_classext_struct
- multibyte : pm_encoding_t