168 lines
6.0 KiB
C
168 lines
6.0 KiB
C
/* Routines for name->symbol lookups in GDB.
|
|
|
|
Copyright (C) 2003-2018 Free Software Foundation, Inc.
|
|
|
|
Contributed by David Carlton <carlton@bactrian.org> and by Kealia,
|
|
Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef DICTIONARY_H
|
|
#define DICTIONARY_H
|
|
|
|
#include "symfile.h"
|
|
|
|
/* An opaque type for dictionaries; only dictionary.c should know
|
|
about its innards. */
|
|
|
|
struct dictionary;
|
|
|
|
/* Other types needed for declarations. */
|
|
|
|
struct symbol;
|
|
struct obstack;
|
|
struct pending;
|
|
struct language_defn;
|
|
|
|
/* The creation functions for various implementations of
|
|
dictionaries. */
|
|
|
|
/* Create a dictionary of symbols of language LANGUAGE implemented via
|
|
a fixed-size hashtable. All memory it uses is allocated on
|
|
OBSTACK; the environment is initialized from SYMBOL_LIST. */
|
|
|
|
extern struct dictionary *dict_create_hashed (struct obstack *obstack,
|
|
enum language language,
|
|
const struct pending
|
|
*symbol_list);
|
|
|
|
/* Create a dictionary of symbols of language LANGUAGE, implemented
|
|
via a hashtable that grows as necessary. The dictionary is
|
|
initially empty; to add symbols to it, call dict_add_symbol().
|
|
Call dict_free() when you're done with it. */
|
|
|
|
extern struct dictionary *
|
|
dict_create_hashed_expandable (enum language language);
|
|
|
|
/* Create a dictionary of symbols of language LANGUAGE, implemented
|
|
via a fixed-size array. All memory it uses is allocated on
|
|
OBSTACK; the environment is initialized from the SYMBOL_LIST. The
|
|
symbols are ordered in the same order that they're found in
|
|
SYMBOL_LIST. */
|
|
|
|
extern struct dictionary *dict_create_linear (struct obstack *obstack,
|
|
enum language language,
|
|
const struct pending
|
|
*symbol_list);
|
|
|
|
/* Create a dictionary of symbols of language LANGUAGE, implemented
|
|
via an array that grows as necessary. The dictionary is initially
|
|
empty; to add symbols to it, call dict_add_symbol(). Call
|
|
dict_free() when you're done with it. */
|
|
|
|
extern struct dictionary *
|
|
dict_create_linear_expandable (enum language language);
|
|
|
|
/* The functions providing the interface to dictionaries. Note that
|
|
the most common parts of the interface, namely symbol lookup, are
|
|
only provided via iterator functions. */
|
|
|
|
/* Free the memory used by a dictionary that's not on an obstack. (If
|
|
any.) */
|
|
|
|
extern void dict_free (struct dictionary *dict);
|
|
|
|
/* Add a symbol to an expandable dictionary. */
|
|
|
|
extern void dict_add_symbol (struct dictionary *dict, struct symbol *sym);
|
|
|
|
/* Utility to add a list of symbols to a dictionary. */
|
|
|
|
extern void dict_add_pending (struct dictionary *dict,
|
|
const struct pending *symbol_list);
|
|
|
|
/* Is the dictionary empty? */
|
|
|
|
extern int dict_empty (struct dictionary *dict);
|
|
|
|
/* A type containing data that is used when iterating over all symbols
|
|
in a dictionary. Don't ever look at its innards; this type would
|
|
be opaque if we didn't need to be able to allocate it on the
|
|
stack. */
|
|
|
|
struct dict_iterator
|
|
{
|
|
/* The dictionary that this iterator is associated to. */
|
|
const struct dictionary *dict;
|
|
/* The next two members are data that is used in a way that depends
|
|
on DICT's implementation type. */
|
|
int index;
|
|
struct symbol *current;
|
|
};
|
|
|
|
/* Initialize ITERATOR to point at the first symbol in DICT, and
|
|
return that first symbol, or NULL if DICT is empty. */
|
|
|
|
extern struct symbol *dict_iterator_first (const struct dictionary *dict,
|
|
struct dict_iterator *iterator);
|
|
|
|
/* Advance ITERATOR, and return the next symbol, or NULL if there are
|
|
no more symbols. Don't call this if you've previously received
|
|
NULL from dict_iterator_first or dict_iterator_next on this
|
|
iteration. */
|
|
|
|
extern struct symbol *dict_iterator_next (struct dict_iterator *iterator);
|
|
|
|
/* Initialize ITERATOR to point at the first symbol in DICT whose
|
|
SYMBOL_SEARCH_NAME is NAME, as tested using COMPARE (which must use
|
|
the same conventions as strcmp_iw and be compatible with any
|
|
dictionary hashing function), and return that first symbol, or NULL
|
|
if there are no such symbols. */
|
|
|
|
extern struct symbol *dict_iter_match_first (const struct dictionary *dict,
|
|
const lookup_name_info &name,
|
|
struct dict_iterator *iterator);
|
|
|
|
/* Advance ITERATOR to point at the next symbol in DICT whose
|
|
SYMBOL_SEARCH_NAME is NAME, as tested using COMPARE (see
|
|
dict_iter_match_first), or NULL if there are no more such symbols.
|
|
Don't call this if you've previously received NULL from
|
|
dict_iterator_match_first or dict_iterator_match_next on this
|
|
iteration. And don't call it unless ITERATOR was created by a
|
|
previous call to dict_iter_match_first with the same NAME and COMPARE. */
|
|
|
|
extern struct symbol *dict_iter_match_next (const lookup_name_info &name,
|
|
struct dict_iterator *iterator);
|
|
|
|
/* Return some notion of the size of the dictionary: the number of
|
|
symbols if we have that, the number of hash buckets otherwise. */
|
|
|
|
extern int dict_size (const struct dictionary *dict);
|
|
|
|
/* Macro to loop through all symbols in a dictionary DICT, in no
|
|
particular order. ITER is a struct dict_iterator (NOTE: __not__ a
|
|
struct dict_iterator *), and SYM points to the current symbol.
|
|
|
|
It's implemented as a single loop, so you can terminate the loop
|
|
early by a break if you desire. */
|
|
|
|
#define ALL_DICT_SYMBOLS(dict, iter, sym) \
|
|
for ((sym) = dict_iterator_first ((dict), &(iter)); \
|
|
(sym); \
|
|
(sym) = dict_iterator_next (&(iter)))
|
|
|
|
#endif /* DICTIONARY_H */
|