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/* Output generating routines for GDB.
Copyright (C) 1999-2017 Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
Written by Fernando Nasser for Cygnus.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef UI_OUT_H
#define UI_OUT_H 1
#include <vector>
#include "common/enum-flags.h"
class ui_out_level;
class ui_out_table;
struct ui_file;
/* the current ui_out */
/* FIXME: This should not be a global but something passed down from main.c
or top.c. */
extern struct ui_out **current_ui_current_uiout_ptr (void);
#define current_uiout (*current_ui_current_uiout_ptr ())
/* alignment enum */
enum ui_align
{
ui_left = -1,
ui_center,
ui_right,
ui_noalign
};
/* flags enum */
enum ui_out_flag
{
ui_source_list = (1 << 0),
};
DEF_ENUM_FLAGS_TYPE (ui_out_flag, ui_out_flags);
/* Prototypes for ui-out API. */
/* A result is a recursive data structure consisting of lists and
tuples. */
enum ui_out_type
{
ui_out_type_tuple,
ui_out_type_list
};
extern struct cleanup *make_cleanup_ui_out_table_begin_end (struct ui_out *ui_out,
int nr_cols,
int nr_rows,
const char *tblid);
/* Compatibility wrappers. */
extern struct cleanup *make_cleanup_ui_out_list_begin_end (struct ui_out *uiout,
const char *id);
extern struct cleanup *make_cleanup_ui_out_tuple_begin_end (struct ui_out *uiout,
const char *id);
class ui_out
{
public:
explicit ui_out (ui_out_flags flags = 0);
virtual ~ui_out ();
void push_level (ui_out_type type);
void pop_level (ui_out_type type);
/* A table can be considered a special tuple/list combination with the
implied structure: ``table = { hdr = { header, ... } , body = [ {
field, ... }, ... ] }''. If NR_ROWS is negative then there is at
least one row. */
void table_begin (int nr_cols, int nr_rows, const std::string &tblid);
void table_header (int width, ui_align align, const std::string &col_name,
const std::string &col_hdr);
void table_body ();
void table_end ();
void begin (ui_out_type type, const char *id);
void end (ui_out_type type);
void field_int (const char *fldname, int value);
void field_fmt_int (int width, ui_align align, const char *fldname,
int value);
void field_core_addr (const char *fldname, struct gdbarch *gdbarch,
CORE_ADDR address);
void field_string (const char *fldname, const char *string);
void field_stream (const char *fldname, ui_file *stream);
void field_skip (const char *fldname);
void field_fmt (const char *fldname, const char *format, ...)
ATTRIBUTE_PRINTF (3, 4);
void spaces (int numspaces);
void text (const char *string);
void message (const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
void wrap_hint (const char *identstring);
void flush ();
/* Redirect the output of a ui_out object temporarily. */
void redirect (ui_file *outstream);
ui_out_flags test_flags (ui_out_flags mask);
/* HACK: Code in GDB is currently checking to see the type of ui_out
builder when determining which output to produce. This function is
a hack to encapsulate that test. Once GDB manages to separate the
CLI/MI from the core of GDB the problem should just go away .... */
bool is_mi_like_p ();
bool query_table_field (int colno, int *width, int *alignment,
const char **col_name);
protected:
virtual void do_table_begin (int nbrofcols, int nr_rows, const char *tblid)
= 0;
virtual void do_table_body () = 0;
virtual void do_table_end () = 0;
virtual void do_table_header (int width, ui_align align,
const std::string &col_name,
const std::string &col_hdr) = 0;
virtual void do_begin (ui_out_type type, const char *id) = 0;
virtual void do_end (ui_out_type type) = 0;
virtual void do_field_int (int fldno, int width, ui_align align,
const char *fldname, int value) = 0;
virtual void do_field_skip (int fldno, int width, ui_align align,
const char *fldname) = 0;
virtual void do_field_string (int fldno, int width, ui_align align,
const char *fldname, const char *string) = 0;
virtual void do_field_fmt (int fldno, int width, ui_align align,
const char *fldname, const char *format,
va_list args)
ATTRIBUTE_PRINTF (6,0) = 0;
virtual void do_spaces (int numspaces) = 0;
virtual void do_text (const char *string) = 0;
virtual void do_message (const char *format, va_list args)
ATTRIBUTE_PRINTF (2,0) = 0;
virtual void do_wrap_hint (const char *identstring) = 0;
virtual void do_flush () = 0;
virtual void do_redirect (struct ui_file *outstream) = 0;
/* Set as not MI-like by default. It is overridden in subclasses if
necessary. */
virtual bool do_is_mi_like_p ()
{ return false; }
private:
ui_out_flags m_flags;
/* Vector to store and track the ui-out levels. */
std::vector<std::unique_ptr<ui_out_level>> m_levels;
/* A table, if any. At present only a single table is supported. */
std::unique_ptr<ui_out_table> m_table_up;
void verify_field (int *fldno, int *width, ui_align *align);
int level () const;
ui_out_level *current_level () const;
};
#endif /* UI_OUT_H */
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