Re: [PATCH 20/22] Class-ify ui_out_table

[Pedro Alves <palves@redhat.com>]

On 11/24/2016 07:10 PM, Simon Marchi wrote:
> This patch makes a class out of the ui_out_table structure, the
> structure responsible for managing the generation of an UI table.
> 
> To simplify the ui_out_table object, I changed it so that it can only be
> used for generating a single object.  Instead of clearing the header
> list when starting a new table, we an ui_out_table when starting a
> table and delete it when we're done.  Therefore, the checks:
> 
>   if (uiout->table->flag)
>   if (!uiout->table->flag)
> 
> are respectively replaced with
> 
>   if (uiout->table != nullptr)
>   if (uiout->table == nullptr)
> 
> Note: I removed the check at the beginning of ui_out_begin, because
> there is an equivalent check at the beginning of verify_field.
> 
> gdb/ChangeLog:
> 
> 	* ui-out.c (enum ui_out_table_state): Move to class
> 	ui_out_table.
> 	(struct ui_out_table): Change to ...
> 	(class ui_out_table): ... this.
> 	<flag>: Remove.
> 	<entry_level>: Rename to ...
> 	<m_entry_level>: ... this.
> 	<columns>: Rename to ...
> 	<m_nr_cols>: ... this.
> 	<id>: Rename to ...
> 	<m_id>: ... this.
> 	<headers>: Rename to ...
> 	<m_headers>: ... this.
> 	<headers_iterator>: Rename to ...
> 	<m_headers_iterator>: ... this.
> 	<start_body, append_header, start_row, get_next_header,
> 	query_field, current_state, entry_level>: New methods.
> 	(struct ui_out) <table>: Change type to unique_ptr to
> 	ui_out_table.
> 	(append_header_to_list, get_next_header, clear_header_list,
> 	clear_table): Remove.
> 	(ui_out_table_begin): Instantiate ui_out_table object.  Update
> 	table check.
> 	(ui_out_table_body): Update table check, replace code with call
> 	to ui_out_table::start_body.
> 	(ui_out_table_end): Update table check, replace manual cleanup
> 	with assignment of uiout->table unique_ptr to nullptr.
> 	(ui_out_table_header): Update table check, replace call to
> 	append_header_to_list with call to append_header method.
> 	(ui_out_begin): Remove one table state check, update another.
> 	Replace code with call to start_row method.
> 	(verify_field): Update table checks.
> 	(ui_out_query_field): Update table check, replace code with call
> 	to query_field method.
> 	(ui_out_new): Remove table initialization code.

LGTM.

Thanks,
Pedro Alves