89de4da46b
This patch constifies ui_out_impl in struct ui_out, and various instances of ui_out_impl. This removes a couple of FIXME comments (near cli_ui_out_impl and mi_ui_out_impl) that did not make sense to me. Tested by rebuilding. 2014-02-28 Tom Tromey <tromey@redhat.com> * cli-out.c (cli_ui_out_impl): Now const. Remove comment. * cli-out.h (cli_ui_out_impl): Now const. * mi/mi-out.c (mi_ui_out_impl): Now const. Remove comment. * ui-out.c (struct ui_out) <impl>: Now const. (default_ui_out_impl): Now const. (ui_out_new): Make 'impl' parameter const. * ui-out.h (ui_out_new): Update.
419 lines
10 KiB
C
419 lines
10 KiB
C
/* MI Command Set - output generating routines.
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Copyright (C) 2000-2014 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions (a Red Hat company).
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "ui-out.h"
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#include "mi-out.h"
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struct ui_out_data
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{
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int suppress_field_separator;
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int suppress_output;
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int mi_version;
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struct ui_file *buffer;
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struct ui_file *original_buffer;
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};
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typedef struct ui_out_data mi_out_data;
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/* These are the MI output functions */
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static void mi_table_begin (struct ui_out *uiout, int nbrofcols,
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int nr_rows, const char *tblid);
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static void mi_table_body (struct ui_out *uiout);
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static void mi_table_end (struct ui_out *uiout);
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static void mi_table_header (struct ui_out *uiout, int width,
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enum ui_align alig, const char *col_name,
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const char *colhdr);
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static void mi_begin (struct ui_out *uiout, enum ui_out_type type,
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int level, const char *id);
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static void mi_end (struct ui_out *uiout, enum ui_out_type type, int level);
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static void mi_field_int (struct ui_out *uiout, int fldno, int width,
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enum ui_align alig, const char *fldname, int value);
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static void mi_field_skip (struct ui_out *uiout, int fldno, int width,
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enum ui_align alig, const char *fldname);
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static void mi_field_string (struct ui_out *uiout, int fldno, int width,
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enum ui_align alig, const char *fldname,
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const char *string);
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static void mi_field_fmt (struct ui_out *uiout, int fldno,
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int width, enum ui_align align,
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const char *fldname, const char *format,
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va_list args) ATTRIBUTE_PRINTF (6, 0);
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static void mi_spaces (struct ui_out *uiout, int numspaces);
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static void mi_text (struct ui_out *uiout, const char *string);
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static void mi_message (struct ui_out *uiout, int verbosity,
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const char *format, va_list args)
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ATTRIBUTE_PRINTF (3, 0);
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static void mi_wrap_hint (struct ui_out *uiout, char *identstring);
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static void mi_flush (struct ui_out *uiout);
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static int mi_redirect (struct ui_out *uiout, struct ui_file *outstream);
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/* This is the MI ui-out implementation functions vector */
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static const struct ui_out_impl mi_ui_out_impl =
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{
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mi_table_begin,
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mi_table_body,
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mi_table_end,
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mi_table_header,
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mi_begin,
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mi_end,
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mi_field_int,
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mi_field_skip,
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mi_field_string,
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mi_field_fmt,
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mi_spaces,
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mi_text,
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mi_message,
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mi_wrap_hint,
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mi_flush,
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mi_redirect,
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0,
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1, /* Needs MI hacks. */
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};
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/* Prototypes for local functions */
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extern void _initialize_mi_out (void);
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static void field_separator (struct ui_out *uiout);
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static void mi_open (struct ui_out *uiout, const char *name,
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enum ui_out_type type);
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static void mi_close (struct ui_out *uiout, enum ui_out_type type);
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/* Mark beginning of a table. */
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void
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mi_table_begin (struct ui_out *uiout,
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int nr_cols,
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int nr_rows,
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const char *tblid)
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{
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mi_open (uiout, tblid, ui_out_type_tuple);
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mi_field_int (uiout, -1, -1, -1, "nr_rows", nr_rows);
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mi_field_int (uiout, -1, -1, -1, "nr_cols", nr_cols);
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mi_open (uiout, "hdr", ui_out_type_list);
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}
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/* Mark beginning of a table body. */
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void
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mi_table_body (struct ui_out *uiout)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_output)
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return;
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/* close the table header line if there were any headers */
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mi_close (uiout, ui_out_type_list);
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mi_open (uiout, "body", ui_out_type_list);
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}
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/* Mark end of a table. */
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void
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mi_table_end (struct ui_out *uiout)
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{
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mi_out_data *data = ui_out_data (uiout);
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data->suppress_output = 0;
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mi_close (uiout, ui_out_type_list); /* body */
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mi_close (uiout, ui_out_type_tuple);
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}
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/* Specify table header. */
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void
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mi_table_header (struct ui_out *uiout, int width, enum ui_align alignment,
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const char *col_name, const char *colhdr)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_output)
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return;
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mi_open (uiout, NULL, ui_out_type_tuple);
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mi_field_int (uiout, 0, 0, 0, "width", width);
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mi_field_int (uiout, 0, 0, 0, "alignment", alignment);
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mi_field_string (uiout, 0, 0, 0, "col_name", col_name);
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mi_field_string (uiout, 0, width, alignment, "colhdr", colhdr);
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mi_close (uiout, ui_out_type_tuple);
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}
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/* Mark beginning of a list. */
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void
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mi_begin (struct ui_out *uiout, enum ui_out_type type, int level,
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const char *id)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_output)
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return;
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mi_open (uiout, id, type);
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}
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/* Mark end of a list. */
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void
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mi_end (struct ui_out *uiout, enum ui_out_type type, int level)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_output)
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return;
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mi_close (uiout, type);
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}
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/* Output an int field. */
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static void
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mi_field_int (struct ui_out *uiout, int fldno, int width,
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enum ui_align alignment, const char *fldname, int value)
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{
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char buffer[20]; /* FIXME: how many chars long a %d can become? */
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_output)
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return;
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xsnprintf (buffer, sizeof (buffer), "%d", value);
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mi_field_string (uiout, fldno, width, alignment, fldname, buffer);
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}
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/* Used to omit a field. */
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void
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mi_field_skip (struct ui_out *uiout, int fldno, int width,
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enum ui_align alignment, const char *fldname)
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{
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}
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/* Other specific mi_field_* end up here so alignment and field
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separators are both handled by mi_field_string. */
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void
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mi_field_string (struct ui_out *uiout, int fldno, int width,
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enum ui_align align, const char *fldname, const char *string)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_output)
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return;
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field_separator (uiout);
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if (fldname)
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fprintf_unfiltered (data->buffer, "%s=", fldname);
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fprintf_unfiltered (data->buffer, "\"");
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if (string)
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fputstr_unfiltered (string, '"', data->buffer);
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fprintf_unfiltered (data->buffer, "\"");
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}
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/* This is the only field function that does not align. */
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void
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mi_field_fmt (struct ui_out *uiout, int fldno, int width,
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enum ui_align align, const char *fldname,
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const char *format, va_list args)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_output)
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return;
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field_separator (uiout);
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if (fldname)
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fprintf_unfiltered (data->buffer, "%s=\"", fldname);
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else
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fputs_unfiltered ("\"", data->buffer);
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vfprintf_unfiltered (data->buffer, format, args);
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fputs_unfiltered ("\"", data->buffer);
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}
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void
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mi_spaces (struct ui_out *uiout, int numspaces)
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{
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}
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void
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mi_text (struct ui_out *uiout, const char *string)
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{
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}
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void
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mi_message (struct ui_out *uiout, int verbosity,
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const char *format, va_list args)
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{
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}
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void
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mi_wrap_hint (struct ui_out *uiout, char *identstring)
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{
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wrap_here (identstring);
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}
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void
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mi_flush (struct ui_out *uiout)
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{
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mi_out_data *data = ui_out_data (uiout);
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gdb_flush (data->buffer);
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}
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int
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mi_redirect (struct ui_out *uiout, struct ui_file *outstream)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (outstream != NULL)
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{
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data->original_buffer = data->buffer;
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data->buffer = outstream;
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}
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else if (data->original_buffer != NULL)
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{
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data->buffer = data->original_buffer;
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data->original_buffer = NULL;
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}
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return 0;
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}
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/* local functions */
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/* access to ui_out format private members */
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static void
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field_separator (struct ui_out *uiout)
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{
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mi_out_data *data = ui_out_data (uiout);
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if (data->suppress_field_separator)
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data->suppress_field_separator = 0;
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else
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fputc_unfiltered (',', data->buffer);
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}
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static void
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mi_open (struct ui_out *uiout, const char *name, enum ui_out_type type)
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{
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mi_out_data *data = ui_out_data (uiout);
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field_separator (uiout);
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data->suppress_field_separator = 1;
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if (name)
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fprintf_unfiltered (data->buffer, "%s=", name);
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switch (type)
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{
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case ui_out_type_tuple:
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fputc_unfiltered ('{', data->buffer);
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break;
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case ui_out_type_list:
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fputc_unfiltered ('[', data->buffer);
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break;
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default:
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internal_error (__FILE__, __LINE__, _("bad switch"));
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}
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}
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static void
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mi_close (struct ui_out *uiout, enum ui_out_type type)
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{
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mi_out_data *data = ui_out_data (uiout);
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switch (type)
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{
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case ui_out_type_tuple:
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fputc_unfiltered ('}', data->buffer);
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break;
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case ui_out_type_list:
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fputc_unfiltered (']', data->buffer);
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break;
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default:
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internal_error (__FILE__, __LINE__, _("bad switch"));
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}
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data->suppress_field_separator = 0;
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}
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/* Add a string to the buffer. */
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void
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mi_out_buffered (struct ui_out *uiout, char *string)
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{
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mi_out_data *data = ui_out_data (uiout);
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fprintf_unfiltered (data->buffer, "%s", string);
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}
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/* Clear the buffer. */
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void
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mi_out_rewind (struct ui_out *uiout)
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{
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mi_out_data *data = ui_out_data (uiout);
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ui_file_rewind (data->buffer);
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}
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/* Dump the buffer onto the specified stream. */
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static void
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do_write (void *data, const char *buffer, long length_buffer)
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{
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ui_file_write (data, buffer, length_buffer);
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}
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void
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mi_out_put (struct ui_out *uiout, struct ui_file *stream)
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{
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mi_out_data *data = ui_out_data (uiout);
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ui_file_put (data->buffer, do_write, stream);
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ui_file_rewind (data->buffer);
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}
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/* Return the current MI version. */
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int
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mi_version (struct ui_out *uiout)
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{
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mi_out_data *data = ui_out_data (uiout);
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return data->mi_version;
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}
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/* Initialize private members at startup. */
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struct ui_out *
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mi_out_new (int mi_version)
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{
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int flags = 0;
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mi_out_data *data = XNEW (mi_out_data);
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data->suppress_field_separator = 0;
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data->suppress_output = 0;
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data->mi_version = mi_version;
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/* FIXME: This code should be using a ``string_file'' and not the
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TUI buffer hack. */
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data->buffer = mem_fileopen ();
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return ui_out_new (&mi_ui_out_impl, data, flags);
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}
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