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212 lines
7.5 KiB
C++
212 lines
7.5 KiB
C++
/* Header for GDB line completion.
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Copyright (C) 2000-2020 Free Software Foundation, Inc.
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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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#if !defined (LINESPEC_H)
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#define LINESPEC_H 1
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struct symtab;
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#include "location.h"
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/* Flags to pass to decode_line_1 and decode_line_full. */
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enum decode_line_flags
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{
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/* Set this flag if you want the resulting SALs to describe the
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first line of indicated functions. */
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DECODE_LINE_FUNFIRSTLINE = 1,
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/* Set this flag if you want "list mode". In this mode, a
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FILE:LINE linespec will always return a result, and such
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linespecs will not be expanded to all matches. */
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DECODE_LINE_LIST_MODE = 2
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};
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/* decode_line_full returns a vector of these. */
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struct linespec_sals
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{
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/* This is the location corresponding to the sals contained in this
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object. It can be passed as the FILTER argument to future calls
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to decode_line_full. This is freed by the linespec_result
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destructor. */
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char *canonical;
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/* Sals. */
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std::vector<symtab_and_line> sals;
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};
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/* An instance of this may be filled in by decode_line_1. The caller
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must make copies of any data that it needs to keep. */
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struct linespec_result
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{
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linespec_result () = default;
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~linespec_result ();
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DISABLE_COPY_AND_ASSIGN (linespec_result);
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/* If true, the linespec should be displayed to the user. This
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is used by "unusual" linespecs where the ordinary `info break'
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display mechanism would do the wrong thing. */
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bool special_display = false;
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/* If true, the linespec result should be considered to be a
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"pre-expanded" multi-location linespec. A pre-expanded linespec
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holds all matching locations in a single linespec_sals
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object. */
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bool pre_expanded = false;
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/* If PRE_EXPANDED is non-zero, this is set to the location entered
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by the user. */
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event_location_up location;
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/* The sals. The vector will be freed by the destructor. */
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std::vector<linespec_sals> lsals;
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};
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/* Decode a linespec using the provided default symtab and line. */
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extern std::vector<symtab_and_line>
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decode_line_1 (const struct event_location *location, int flags,
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struct program_space *search_pspace,
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struct symtab *default_symtab, int default_line);
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/* Parse LOCATION and return results. This is the "full"
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interface to this module, which handles multiple results
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properly.
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For FLAGS, see decode_line_flags. DECODE_LINE_LIST_MODE is not
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valid for this function.
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If SEARCH_PSPACE is not NULL, symbol search is restricted to just
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that program space.
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DEFAULT_SYMTAB and DEFAULT_LINE describe the default location.
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DEFAULT_SYMTAB can be NULL, in which case the current symtab and
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line are used.
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CANONICAL is where the results are stored. It must not be NULL.
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SELECT_MODE must be one of the multiple_symbols_* constants, or
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NULL. It determines how multiple results will be handled. If
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NULL, the appropriate CLI value will be used.
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FILTER can either be NULL or a string holding a canonical name.
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This is only valid when SELECT_MODE is multiple_symbols_all.
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Multiple results are handled differently depending on the
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arguments:
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. With multiple_symbols_cancel, an exception is thrown.
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. With multiple_symbols_ask, a menu is presented to the user. The
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user may select none, in which case an exception is thrown; or all,
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which is handled like multiple_symbols_all, below. Otherwise,
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CANONICAL->SALS will have one entry for each name the user chose.
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. With multiple_symbols_all, CANONICAL->SALS will have a single
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entry describing all the matching locations. If FILTER is
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non-NULL, then only locations whose canonical name is equal (in the
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strcmp sense) to FILTER will be returned; all others will be
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filtered out. */
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extern void decode_line_full (const struct event_location *location, int flags,
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struct program_space *search_pspace,
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struct symtab *default_symtab, int default_line,
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struct linespec_result *canonical,
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const char *select_mode,
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const char *filter);
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/* Given a string, return the line specified by it, using the current
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source symtab and line as defaults.
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This is for commands like "list" and "breakpoint". */
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extern std::vector<symtab_and_line> decode_line_with_current_source
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(const char *, int);
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/* Given a string, return the line specified by it, using the last displayed
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codepoint's values as defaults, or nothing if they aren't valid. */
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extern std::vector<symtab_and_line> decode_line_with_last_displayed
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(const char *, int);
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/* Does P represent one of the keywords? If so, return
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the keyword. If not, return NULL. */
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extern const char *linespec_lexer_lex_keyword (const char *p);
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/* Parse a line offset from STRING. */
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extern struct line_offset linespec_parse_line_offset (const char *string);
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/* Return the quote characters permitted by the linespec parser. */
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extern const char *get_gdb_linespec_parser_quote_characters (void);
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/* Does STRING represent an Ada operator? If so, return the length
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of the decoded operator name. If not, return 0. */
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extern int is_ada_operator (const char *string);
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/* Find an instance of the character C in the string S that is outside
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of all parenthesis pairs, single-quoted strings, and double-quoted
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strings. Also, ignore the char within a template name, like a ','
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within foo<int, int>. */
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extern const char *find_toplevel_char (const char *s, char c);
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/* Find the end of the (first) linespec pointed to by *STRINGP.
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STRINGP will be advanced to this point. */
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extern void linespec_lex_to_end (const char **stringp);
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extern const char * const linespec_keywords[];
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/* Complete a linespec. */
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extern void linespec_complete (completion_tracker &tracker,
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const char *text,
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symbol_name_match_type match_type);
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/* Complete a function symbol, in linespec mode, according to
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FUNC_MATCH_TYPE. If SOURCE_FILENAME is non-NULL, limits completion
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to the list of functions defined in source files that match
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SOURCE_FILENAME. */
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extern void linespec_complete_function (completion_tracker &tracker,
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const char *function,
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symbol_name_match_type func_match_type,
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const char *source_filename);
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/* Complete a label symbol, in linespec mode. Only labels of
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functions named FUNCTION_NAME are considered. If SOURCE_FILENAME
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is non-NULL, limits completion to labels of functions defined in
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source files that match SOURCE_FILENAME. */
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extern void linespec_complete_label (completion_tracker &tracker,
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const struct language_defn *language,
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const char *source_filename,
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const char *function_name,
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symbol_name_match_type name_match_type,
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const char *label_name);
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/* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR,
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advancing EXP_PTR past any parsed text. */
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extern CORE_ADDR linespec_expression_to_pc (const char **exp_ptr);
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#endif /* defined (LINESPEC_H) */
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