/* Source-language-related definitions for GDB.
- Copyright (C) 1991-2017 Free Software Foundation, Inc.
+ Copyright (C) 1991-2018 Free Software Foundation, Inc.
Contributed by the Department of Computer Science at the State University
of New York at Buffalo.
#include "symtab.h"
#include "common/function-view.h"
+#include "expression.h"
/* Forward decls for prototypes. */
struct value;
struct objfile;
struct frame_info;
-struct expression;
struct ui_file;
struct value_print_options;
struct type_print_options;
struct lang_varobj_ops;
struct parser_state;
struct compile_instance;
+struct completion_match_for_lcd;
#define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims. */
struct type *bool_type_default;
};
-/* A pointer to a function expected to return nonzero if
- SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME.
-
- SYMBOL_SEARCH_NAME should be a symbol's "search" name.
- LOOKUP_NAME should be the name of an entity after it has been
- transformed for lookup. */
-
-typedef int (*symbol_name_cmp_ftype) (const char *symbol_search_name,
- const char *lookup_name);
-
/* Structure tying together assorted information about a language. */
struct language_defn
for releasing its previous contents, if necessary. If
VOID_CONTEXT_P, then no value is expected from the expression. */
- void (*la_post_parser) (struct expression ** expp, int void_context_p);
+ void (*la_post_parser) (expression_up *expp, int void_context_p);
void (*la_printchar) (int ch, struct type *chtype,
struct ui_file * stream);
const char *la_name_of_this;
+ /* True if the symbols names should be stored in GDB's data structures
+ for minimal/partial/full symbols using their linkage (aka mangled)
+ form; false if the symbol names should be demangled first.
+
+ Most languages implement symbol lookup by comparing the demangled
+ names, in which case it is advantageous to store that information
+ already demangled, and so would set this field to false.
+
+ On the other hand, some languages have opted for doing symbol
+ lookups by comparing mangled names instead, for reasons usually
+ specific to the language. Those languages should set this field
+ to true.
+
+ And finally, other languages such as C or Asm do not have
+ the concept of mangled vs demangled name, so those languages
+ should set this field to true as well, to prevent any accidental
+ demangling through an unrelated language's demangler. */
+
+ const bool la_store_sym_names_in_linkage_form_p;
+
/* This is a function that lookup_symbol will call when it gets to
the part of symbol lookup where C looks up static and global
variables. */
void (*la_collect_symbol_completion_matches)
(completion_tracker &tracker,
complete_symbol_mode mode,
+ symbol_name_match_type match_type,
const char *text,
const char *word,
enum type_code code);
gdb::unique_xmalloc_ptr<char> (*la_watch_location_expression)
(struct type *type, CORE_ADDR addr);
- /* Return a pointer to the function that should be used to match
- a symbol name against LOOKUP_NAME. This is mostly for languages
- such as Ada where the matching algorithm depends on LOOKUP_NAME.
+ /* Return a pointer to the function that should be used to match a
+ symbol name against LOOKUP_NAME, according to this language's
+ rules. The matching algorithm depends on LOOKUP_NAME. For
+ example, on Ada, the matching algorithm depends on the symbol
+ name (wild/full/verbatim matching), and on whether we're doing
+ a normal lookup or a completion match lookup.
- This field may be NULL, in which case strcmp_iw will be used
- to perform the matching. */
- symbol_name_cmp_ftype (*la_get_symbol_name_cmp) (const char *lookup_name);
+ This field may be NULL, in which case
+ default_symbol_name_matcher is used to perform the
+ matching. */
+ symbol_name_matcher_ftype *(*la_get_symbol_name_matcher)
+ (const lookup_name_info &);
/* Find all symbols in the current program space matching NAME in
DOMAIN, according to this language's rules.
special processing here, 'iterate_over_symbols' should be
used as the definition. */
void (*la_iterate_over_symbols)
- (const struct block *block, const char *name, domain_enum domain,
+ (const struct block *block, const lookup_name_info &name,
+ domain_enum domain,
gdb::function_view<symbol_found_callback_ftype> callback);
+ /* Hash the given symbol search name. Use
+ default_search_name_hash if no special treatment is
+ required. */
+ unsigned int (*la_search_name_hash) (const char *name);
+
/* Various operations on varobj. */
const struct lang_varobj_ops *la_varobj_ops;
/* Misc: The string representing a particular enum language. */
-extern enum language language_enum (char *str);
+extern enum language language_enum (const char *str);
extern const struct language_defn *language_def (enum language);
void default_get_string (struct value *value, gdb_byte **buffer, int *length,
struct type **char_type, const char **charset);
+/* Default name hashing function. */
+
+/* Produce an unsigned hash value from SEARCH_NAME that is consistent
+ with strcmp_iw, strcmp, and, at least on Ada symbols, wild_match.
+ That is, two identifiers equivalent according to any of those three
+ comparison operators hash to the same value. */
+extern unsigned int default_search_name_hash (const char *search_name);
+
void c_get_string (struct value *value, gdb_byte **buffer, int *length,
struct type **char_type, const char **charset);
+/* The default implementation of la_symbol_name_matcher. Matches with
+ strncmp_iw. */
+extern bool default_symbol_name_matcher
+ (const char *symbol_search_name,
+ const lookup_name_info &lookup_name,
+ completion_match_result *comp_match_res);
+
+/* Get LANG's symbol_name_matcher method for LOOKUP_NAME. Returns
+ default_symbol_name_matcher if not set. LANG is used as a hint;
+ the function may ignore it depending on the current language and
+ LOOKUP_NAME. Specifically, if the current language is Ada, this
+ may return an Ada matcher regardless of LANG. */
+symbol_name_matcher_ftype *get_symbol_name_matcher
+ (const language_defn *lang, const lookup_name_info &lookup_name);
+
/* The languages supported by GDB. */
extern const struct language_defn auto_language_defn;
projects / deliverable / binutils-gdb.git / blobdiff