155 lines
5.4 KiB
C++
155 lines
5.4 KiB
C++
/* Manages interpreters for GDB, the GNU debugger.
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Copyright (C) 2000-2017 Free Software Foundation, Inc.
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Written by Jim Ingham <jingham@apple.com> of Apple Computer, Inc.
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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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#ifndef INTERPS_H
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#define INTERPS_H
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struct ui_out;
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struct interp;
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struct ui;
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typedef struct interp *(*interp_factory_func) (const char *name);
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/* Each interpreter kind (CLI, MI, etc.) registers itself with a call
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to this function, passing along its name, and a pointer to a
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function that creates a new instance of an interpreter with that
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name. */
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extern void interp_factory_register (const char *name,
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interp_factory_func func);
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extern int interp_resume (struct interp *interp);
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extern int interp_suspend (struct interp *interp);
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extern struct gdb_exception interp_exec (struct interp *interp,
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const char *command);
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class interp
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{
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public:
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explicit interp (const char *name);
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virtual ~interp () = 0;
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virtual void init (bool top_level)
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{}
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virtual void resume () = 0;
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virtual void suspend () = 0;
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virtual gdb_exception exec (const char *command) = 0;
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/* Returns the ui_out currently used to collect results for this
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interpreter. It can be a formatter for stdout, as is the case
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for the console & mi outputs, or it might be a result
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formatter. */
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virtual ui_out *interp_ui_out () = 0;
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/* Provides a hook for interpreters to do any additional
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setup/cleanup that they might need when logging is enabled or
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disabled. */
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virtual void set_logging (ui_file_up logfile, bool logging_redirect) = 0;
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/* Called before starting an event loop, to give the interpreter a
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chance to e.g., print a prompt. */
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virtual void pre_command_loop ()
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{}
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/* Returns true if this interpreter supports using the readline
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library; false if it uses GDB's own simplified readline
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emulation. */
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virtual bool supports_command_editing ()
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{ return false; }
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/* This is the name in "-i=" and "set interpreter". */
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const char *name;
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/* Interpreters are stored in a linked list, this is the next
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one... */
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struct interp *next;
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/* Has the init method been run? */
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bool inited;
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};
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extern void interp_add (struct ui *ui, struct interp *interp);
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/* Look up the interpreter for NAME, creating one if none exists yet.
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If NAME is not a interpreter type previously registered with
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interp_factory_register, return NULL; otherwise return a pointer to
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the interpreter. */
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extern struct interp *interp_lookup (struct ui *ui, const char *name);
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/* Set the current UI's top level interpreter to the interpreter named
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NAME. Throws an error if NAME is not a known interpreter or the
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interpreter fails to initialize. */
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extern void set_top_level_interpreter (const char *name);
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extern struct ui_out *interp_ui_out (struct interp *interp);
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extern const char *interp_name (struct interp *interp);
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extern struct interp *interp_set_temp (const char *name);
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extern int current_interp_named_p (const char *name);
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/* Call this function to give the current interpreter an opportunity
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to do any special handling of streams when logging is enabled or
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disabled. LOGFILE is the stream for the log file when logging is
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starting and is NULL when logging is ending. LOGGING_REDIRECT is
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the value of the "set logging redirect" setting. If true, the
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interpreter should configure the output streams to send output only
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to the logfile. If false, the interpreter should configure the
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output streams to send output to both the current output stream
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(i.e., the terminal) and the log file. */
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extern void current_interp_set_logging (ui_file_up logfile,
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bool logging_redirect);
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/* Returns the top-level interpreter. */
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extern struct interp *top_level_interpreter (void);
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/* Return the current UI's current interpreter. */
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extern struct interp *current_interpreter (void);
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extern struct interp *command_interp (void);
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extern void clear_interpreter_hooks (void);
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/* Returns true if INTERP supports using the readline library; false
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if it uses GDB's own simplified form of readline. */
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extern int interp_supports_command_editing (struct interp *interp);
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/* Called before starting an event loop, to give the interpreter a
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chance to e.g., print a prompt. */
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extern void interp_pre_command_loop (struct interp *interp);
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/* List the possible interpreters which could complete the given
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text. */
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extern VEC (char_ptr) *interpreter_completer (struct cmd_list_element *ignore,
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const char *text,
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const char *word);
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/* well-known interpreters */
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#define INTERP_CONSOLE "console"
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#define INTERP_MI1 "mi1"
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#define INTERP_MI2 "mi2"
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#define INTERP_MI3 "mi3"
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#define INTERP_MI "mi"
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#define INTERP_TUI "tui"
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#define INTERP_INSIGHT "insight"
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#endif
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