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git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - gdb/interps.h
1 /* Manages interpreters for GDB, the GNU debugger.
3 Copyright (C) 2000-2023 Free Software Foundation, Inc.
5 Written by Jim Ingham <jingham@apple.com> of Apple Computer, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
28 class completion_tracker
;
30 typedef struct interp
*(*interp_factory_func
) (const char *name
);
32 /* Each interpreter kind (CLI, MI, etc.) registers itself with a call
33 to this function, passing along its name, and a pointer to a
34 function that creates a new instance of an interpreter with that
36 extern void interp_factory_register (const char *name
,
37 interp_factory_func func
);
39 extern void interp_exec (struct interp
*interp
, const char *command
);
44 explicit interp (const char *name
);
45 virtual ~interp () = 0;
47 virtual void init (bool top_level
)
50 virtual void resume () = 0;
51 virtual void suspend () = 0;
53 virtual void exec (const char *command
) = 0;
55 /* Returns the ui_out currently used to collect results for this
56 interpreter. It can be a formatter for stdout, as is the case
57 for the console & mi outputs, or it might be a result
59 virtual ui_out
*interp_ui_out () = 0;
61 /* Provides a hook for interpreters to do any additional
62 setup/cleanup that they might need when logging is enabled or
64 virtual void set_logging (ui_file_up logfile
, bool logging_redirect
,
65 bool debug_redirect
) = 0;
67 /* Called before starting an event loop, to give the interpreter a
68 chance to e.g., print a prompt. */
69 virtual void pre_command_loop ()
72 /* Returns true if this interpreter supports using the readline
73 library; false if it uses GDB's own simplified readline
75 virtual bool supports_command_editing ()
78 const char *name () const
84 /* This is the name in "-i=" and "set interpreter". */
85 gdb::unique_xmalloc_ptr
<char> m_name
;
88 /* Interpreters are stored in a linked list, this is the next
92 /* Has the init method been run? */
96 /* Look up the interpreter for NAME, creating one if none exists yet.
97 If NAME is not a interpreter type previously registered with
98 interp_factory_register, return NULL; otherwise return a pointer to
100 extern struct interp
*interp_lookup (struct ui
*ui
, const char *name
);
102 /* Set the current UI's top level interpreter to the interpreter named
103 NAME. Throws an error if NAME is not a known interpreter or the
104 interpreter fails to initialize. */
105 extern void set_top_level_interpreter (const char *name
);
107 /* Temporarily set the current interpreter, and reset it on
109 class scoped_restore_interp
113 scoped_restore_interp (const char *name
)
114 : m_interp (set_interp (name
))
118 ~scoped_restore_interp ()
120 set_interp (m_interp
->name ());
123 scoped_restore_interp (const scoped_restore_interp
&) = delete;
124 scoped_restore_interp
&operator= (const scoped_restore_interp
&) = delete;
128 struct interp
*set_interp (const char *name
);
130 struct interp
*m_interp
;
133 extern int current_interp_named_p (const char *name
);
135 /* Call this function to give the current interpreter an opportunity
136 to do any special handling of streams when logging is enabled or
137 disabled. LOGFILE is the stream for the log file when logging is
138 starting and is NULL when logging is ending. LOGGING_REDIRECT is
139 the value of the "set logging redirect" setting. If true, the
140 interpreter should configure the output streams to send output only
141 to the logfile. If false, the interpreter should configure the
142 output streams to send output to both the current output stream
143 (i.e., the terminal) and the log file. DEBUG_REDIRECT is same as
144 LOGGING_REDIRECT, but for the value of "set logging debugredirect"
146 extern void current_interp_set_logging (ui_file_up logfile
,
147 bool logging_redirect
,
148 bool debug_redirect
);
150 /* Returns the top-level interpreter. */
151 extern struct interp
*top_level_interpreter (void);
153 /* Return the current UI's current interpreter. */
154 extern struct interp
*current_interpreter (void);
156 extern struct interp
*command_interp (void);
158 extern void clear_interpreter_hooks (void);
160 /* Returns true if INTERP supports using the readline library; false
161 if it uses GDB's own simplified form of readline. */
162 extern int interp_supports_command_editing (struct interp
*interp
);
164 /* Called before starting an event loop, to give the interpreter a
165 chance to e.g., print a prompt. */
166 extern void interp_pre_command_loop (struct interp
*interp
);
168 /* List the possible interpreters which could complete the given
170 extern void interpreter_completer (struct cmd_list_element
*ignore
,
171 completion_tracker
&tracker
,
175 /* well-known interpreters */
176 #define INTERP_CONSOLE "console"
177 #define INTERP_MI2 "mi2"
178 #define INTERP_MI3 "mi3"
179 #define INTERP_MI4 "mi4"
180 #define INTERP_MI "mi"
181 #define INTERP_TUI "tui"
182 #define INTERP_INSIGHT "insight"