1 /* Output generating routines for GDB.
3 Copyright (C) 1999-2018 Free Software Foundation, Inc.
5 Contributed by Cygnus Solutions.
6 Written by Fernando Nasser for Cygnus.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
28 #include "common/enum-flags.h"
34 /* the current ui_out */
36 /* FIXME: This should not be a global but something passed down from main.c
38 extern struct ui_out **current_ui_current_uiout_ptr (void);
39 #define current_uiout (*current_ui_current_uiout_ptr ())
53 ui_source_list = (1 << 0),
56 DEF_ENUM_FLAGS_TYPE (ui_out_flag, ui_out_flags);
58 /* Prototypes for ui-out API. */
60 /* A result is a recursive data structure consisting of lists and
73 explicit ui_out (ui_out_flags flags = 0);
76 void push_level (ui_out_type type);
77 void pop_level (ui_out_type type);
79 /* A table can be considered a special tuple/list combination with the
80 implied structure: ``table = { hdr = { header, ... } , body = [ {
81 field, ... }, ... ] }''. If NR_ROWS is negative then there is at
84 void table_begin (int nr_cols, int nr_rows, const std::string &tblid);
85 void table_header (int width, ui_align align, const std::string &col_name,
86 const std::string &col_hdr);
90 void begin (ui_out_type type, const char *id);
91 void end (ui_out_type type);
93 void field_int (const char *fldname, int value);
94 void field_fmt_int (int width, ui_align align, const char *fldname,
96 void field_core_addr (const char *fldname, struct gdbarch *gdbarch,
98 void field_string (const char *fldname, const char *string);
99 void field_string (const char *fldname, const std::string &string);
100 void field_stream (const char *fldname, string_file &stream);
101 void field_skip (const char *fldname);
102 void field_fmt (const char *fldname, const char *format, ...)
103 ATTRIBUTE_PRINTF (3, 4);
105 void spaces (int numspaces);
106 void text (const char *string);
107 void message (const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
108 void wrap_hint (const char *identstring);
112 /* Redirect the output of a ui_out object temporarily. */
113 void redirect (ui_file *outstream);
115 ui_out_flags test_flags (ui_out_flags mask);
117 /* HACK: Code in GDB is currently checking to see the type of ui_out
118 builder when determining which output to produce. This function is
119 a hack to encapsulate that test. Once GDB manages to separate the
120 CLI/MI from the core of GDB the problem should just go away .... */
122 bool is_mi_like_p () const;
124 bool query_table_field (int colno, int *width, int *alignment,
125 const char **col_name);
129 virtual void do_table_begin (int nbrofcols, int nr_rows, const char *tblid)
131 virtual void do_table_body () = 0;
132 virtual void do_table_end () = 0;
133 virtual void do_table_header (int width, ui_align align,
134 const std::string &col_name,
135 const std::string &col_hdr) = 0;
137 virtual void do_begin (ui_out_type type, const char *id) = 0;
138 virtual void do_end (ui_out_type type) = 0;
139 virtual void do_field_int (int fldno, int width, ui_align align,
140 const char *fldname, int value) = 0;
141 virtual void do_field_skip (int fldno, int width, ui_align align,
142 const char *fldname) = 0;
143 virtual void do_field_string (int fldno, int width, ui_align align,
144 const char *fldname, const char *string) = 0;
145 virtual void do_field_fmt (int fldno, int width, ui_align align,
146 const char *fldname, const char *format,
148 ATTRIBUTE_PRINTF (6,0) = 0;
149 virtual void do_spaces (int numspaces) = 0;
150 virtual void do_text (const char *string) = 0;
151 virtual void do_message (const char *format, va_list args)
152 ATTRIBUTE_PRINTF (2,0) = 0;
153 virtual void do_wrap_hint (const char *identstring) = 0;
154 virtual void do_flush () = 0;
155 virtual void do_redirect (struct ui_file *outstream) = 0;
157 /* Set as not MI-like by default. It is overridden in subclasses if
160 virtual bool do_is_mi_like_p () const
165 ui_out_flags m_flags;
167 /* Vector to store and track the ui-out levels. */
168 std::vector<std::unique_ptr<ui_out_level>> m_levels;
170 /* A table, if any. At present only a single table is supported. */
171 std::unique_ptr<ui_out_table> m_table_up;
173 void verify_field (int *fldno, int *width, ui_align *align);
176 ui_out_level *current_level () const;
179 /* This is similar to make_cleanup_ui_out_tuple_begin_end and
180 make_cleanup_ui_out_list_begin_end, but written as an RAII template
181 class. It takes the ui_out_type as a template parameter. Normally
182 this is used via the typedefs ui_out_emit_tuple and
184 template<ui_out_type Type>
185 class ui_out_emit_type
189 ui_out_emit_type (struct ui_out *uiout, const char *id)
192 uiout->begin (Type, id);
200 DISABLE_COPY_AND_ASSIGN (ui_out_emit_type<Type>);
204 struct ui_out *m_uiout;
207 typedef ui_out_emit_type<ui_out_type_tuple> ui_out_emit_tuple;
208 typedef ui_out_emit_type<ui_out_type_list> ui_out_emit_list;
210 /* Start a new table on construction, and end the table on
212 class ui_out_emit_table
216 ui_out_emit_table (struct ui_out *uiout, int nr_cols, int nr_rows,
220 m_uiout->table_begin (nr_cols, nr_rows, tblid);
223 ~ui_out_emit_table ()
225 m_uiout->table_end ();
228 ui_out_emit_table (const ui_out_emit_table &) = delete;
229 ui_out_emit_table &operator= (const ui_out_emit_table &) = delete;
233 struct ui_out *m_uiout;
236 /* On destruction, pop the last redirection by calling the uiout's
237 redirect method with a NULL parameter. */
238 class ui_out_redirect_pop
242 ui_out_redirect_pop (ui_out *uiout)
247 ~ui_out_redirect_pop ()
249 m_uiout->redirect (NULL);
252 ui_out_redirect_pop (const ui_out_redirect_pop &) = delete;
253 ui_out_redirect_pop &operator= (const ui_out_redirect_pop &) = delete;
256 struct ui_out *m_uiout;
259 #endif /* UI_OUT_H */