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gdb: Add command completers for some info commands

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Add command completion for info variables, functions, args, and
locals.  This completer only completes the command line options as
these commands all take a regexp which GDB can't really offer
completions for.

gdb/ChangeLog:

	* cli/cli-utils.c (info_print_command_completer): New function.
	* cli/cli-utils.h: Add 'completer.h' include, and forward
	declaration for 'struct cmd_list_element'.
	(info_print_command_completer): Declare.
	* stack.c (_initialize_stack): Add completer for 'info locals' and
	'info args'.
	* symtab.c (_initialize_symtab): Add completer for 'info
	variables' and 'info functions'.
	* NEWS: Mention completion for additional info commands.
This commit is contained in:
Andrew Burgess
2019-07-11 15:39:55 +01:00
parent b16507e091
commit 60cfcb20ce
6 changed files with 64 additions and 11 deletions
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13
gdb/cli/cli-utils.h
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@ -20,6 +20,10 @@
#ifndef CLI_CLI_UTILS_H
#define CLI_CLI_UTILS_H
#include "completer.h"
struct cmd_list_element;
/* *PP is a string denoting a number. Get the number. Advance *PP
after the string and any trailing whitespace.
@ -66,6 +70,15 @@ struct info_print_options
extern void extract_info_print_options (info_print_options *opts,
const char **args);
/* Function that can be used as a command completer for 'info variable'
and friends. This offers command option completion as well as symbol
completion. At the moment all symbols are offered for all commands. */
extern void info_print_command_completer (struct cmd_list_element *ignore,
completion_tracker &tracker,
const char *text,
const char * /* word */);
/* Throws an error telling the user that ARGS starts with an option
unrecognized by COMMAND. */