bool destructible = true;
};
+/* Splitting strings into words. */
+extern const char *default_word_break_characters (void);
+
/* Structure tying together assorted information about a language.
As we move over from the old structure based languages to a class
void (*la_emitchar) (int ch, struct type *chtype,
struct ui_file * stream, int quoter);
- /* Print a type using syntax appropriate for this language. */
-
- void (*la_print_type) (struct type *, const char *, struct ui_file *, int,
- int, const struct type_print_options *);
-
/* Print a typedef using syntax appropriate for this language.
TYPE is the underlying type. NEW_SYMBOL is the symbol naming
the type. STREAM is the output stream on which to print. */
void (*la_print_typedef) (struct type *type, struct symbol *new_symbol,
struct ui_file *stream);
- /* Print a value using syntax appropriate for this language.
- RECURSE is the recursion depth. It is zero-based. */
-
- void (*la_value_print_inner) (struct value *, struct ui_file *,
- int recurse,
- const struct value_print_options *);
-
- /* Print a top-level value using syntax appropriate for this language. */
-
- void (*la_value_print) (struct value *, struct ui_file *,
- const struct value_print_options *);
-
- /* PC is possibly an unknown languages trampoline.
- If that PC falls in a trampoline belonging to this language,
- return the address of the first pc in the real function, or 0
- if it isn't a language tramp for this language. */
- CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR);
-
/* Now come some hooks for lookup_symbol. */
/* If this is non-NULL, specifies the name that of the implicit
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. */
-
- struct block_symbol (*la_lookup_symbol_nonlocal)
- (const struct language_defn *,
- const char *,
- const struct block *,
- const domain_enum);
-
- /* Return demangled language symbol, or NULL. */
- char *(*la_demangle) (const char *mangled, int options);
-
- /* Demangle a symbol according to this language's rules. Unlike
- la_demangle, this does not take any options.
-
- *DEMANGLED will be set by this function.
-
- If this function returns 0, then *DEMANGLED must always be set
- to NULL.
-
- If this function returns 1, the implementation may set this to
- a xmalloc'd string holding the demangled form. However, it is
- not required to. The string, if any, is owned by the caller.
-
- The resulting string should be of the form that will be
- installed into a symbol. */
- int (*la_sniff_from_mangled_name) (const char *mangled, char **demangled);
-
- /* Return class name of a mangled method name or NULL. */
- char *(*la_class_name_from_physname) (const char *physname);
-
/* Table for printing expressions. */
const struct op_print *la_op_print_tab;
/* Index to use for extracting the first element of a string. */
char string_lower_bound;
- /* The list of characters forming word boundaries. */
- const char *(*la_word_break_characters) (void);
-
- /* Add to the completion tracker all symbols which are possible
- completions for TEXT. WORD is the entire command on which the
- completion is being made. If CODE is TYPE_CODE_UNDEF, then all
- symbols should be examined; otherwise, only STRUCT_DOMAIN
- symbols whose type has a code of CODE should be matched. */
- 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);
-
- /* Return an expression that can be used for a location
- watchpoint. TYPE is a pointer type that points to the memory
- to watch, and ADDR is the address of the watched memory. */
- 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, 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
- default_symbol_name_matcher is used to perform the
- matching. */
- symbol_name_matcher_ftype *(*la_get_symbol_name_matcher)
- (const lookup_name_info &);
-
- /* 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;
- /* This method must be defined if 'la_get_gcc_context' is defined.
- If 'la_get_gcc_context' is not defined, then this method is
- ignored.
-
- This takes the user-supplied text and returns a new bit of code
- to compile.
-
- INST is the compiler instance being used.
- INPUT is the user's input text.
- GDBARCH is the architecture to use.
- EXPR_BLOCK is the block in which the expression is being
- parsed.
- EXPR_PC is the PC at which the expression is being parsed. */
-
- std::string (*la_compute_program) (compile_instance *inst,
- const char *input,
- struct gdbarch *gdbarch,
- const struct block *expr_block,
- CORE_ADDR expr_pc);
-
/* Return true if TYPE is a string type. */
bool (*la_is_string_type_p) (struct type *type);
return ::iterate_over_symbols (block, name, domain, callback);
}
+ /* 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.
+
+ As Ada wants to capture symbol matching for all languages in some
+ cases, then this method is a non-overridable interface. Languages
+ should override GET_SYMBOL_NAME_MATCHER_INNER if they need to. */
+
+ symbol_name_matcher_ftype *get_symbol_name_matcher
+ (const lookup_name_info &lookup_name) const;
+
/* If this language allows compilation from the gdb command line, then
this method will return an instance of struct gcc_context appropriate
to the language. If compilation for this language is generally
return nullptr;
}
+ /* This method must be overridden if 'get_compile_instance' is
+ overridden.
+
+ This takes the user-supplied text and returns a new bit of code
+ to compile.
+
+ INST is the compiler instance being used.
+ INPUT is the user's input text.
+ GDBARCH is the architecture to use.
+ EXPR_BLOCK is the block in which the expression is being
+ parsed.
+ EXPR_PC is the PC at which the expression is being parsed. */
+
+ virtual std::string compute_program (compile_instance *inst,
+ const char *input,
+ struct gdbarch *gdbarch,
+ const struct block *expr_block,
+ CORE_ADDR expr_pc) const
+ {
+ gdb_assert_not_reached ("language_defn::compute_program");
+ }
+
+ /* Hash the given symbol search name. */
+ virtual unsigned int search_name_hash (const char *name) const;
+
+ /* Demangle a symbol according to this language's rules. Unlike
+ la_demangle, this does not take any options.
+
+ *DEMANGLED will be set by this function.
+
+ If this function returns false, then *DEMANGLED must always be set
+ to NULL.
+
+ If this function returns true, the implementation may set this to
+ a xmalloc'd string holding the demangled form. However, it is
+ not required to. The string, if any, is owned by the caller.
+
+ The resulting string should be of the form that will be
+ installed into a symbol. */
+ virtual bool sniff_from_mangled_name (const char *mangled,
+ char **demangled) const
+ {
+ *demangled = nullptr;
+ return false;
+ }
+
+ /* Return demangled language symbol version of MANGLED, or NULL. */
+ virtual char *demangle (const char *mangled, int options) const
+ {
+ return nullptr;
+ }
+
+ /* Print a type using syntax appropriate for this language. */
+
+ virtual void print_type (struct type *, const char *, struct ui_file *, int,
+ int, const struct type_print_options *) const = 0;
+
+ /* PC is possibly an unknown languages trampoline.
+ If that PC falls in a trampoline belonging to this language, return
+ the address of the first pc in the real function, or 0 if it isn't a
+ language tramp for this language. */
+ virtual CORE_ADDR skip_trampoline (struct frame_info *fi, CORE_ADDR pc) const
+ {
+ return (CORE_ADDR) 0;
+ }
+
+ /* Return class name of a mangled method name or NULL. */
+ virtual char *class_name_from_physname (const char *physname) const
+ {
+ return nullptr;
+ }
+
+ /* The list of characters forming word boundaries. */
+ virtual const char *word_break_characters (void) const
+ {
+ return default_word_break_characters ();
+ }
+
+ /* Add to the completion tracker all symbols which are possible
+ completions for TEXT. WORD is the entire command on which the
+ completion is being made. If CODE is TYPE_CODE_UNDEF, then all
+ symbols should be examined; otherwise, only STRUCT_DOMAIN symbols
+ whose type has a code of CODE should be matched. */
+
+ virtual void collect_symbol_completion_matches
+ (completion_tracker &tracker,
+ complete_symbol_mode mode,
+ symbol_name_match_type name_match_type,
+ const char *text,
+ const char *word,
+ enum type_code code) const
+ {
+ return default_collect_symbol_completion_matches_break_on
+ (tracker, mode, name_match_type, text, word, "", code);
+ }
+
+ /* 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. This default implements the basic C lookup rules. */
+
+ virtual struct block_symbol lookup_symbol_nonlocal
+ (const char *name,
+ const struct block *block,
+ const domain_enum domain) const;
+
+ /* Return an expression that can be used for a location
+ watchpoint. TYPE is a pointer type that points to the memory
+ to watch, and ADDR is the address of the watched memory. */
+ virtual gdb::unique_xmalloc_ptr<char> watch_location_expression
+ (struct type *type, CORE_ADDR addr) const;
+
/* List of all known languages. */
static const struct language_defn *languages[nr_languages];
+
+ /* Print a top-level value using syntax appropriate for this language. */
+ virtual void value_print (struct value *val, struct ui_file *stream,
+ const struct value_print_options *options) const;
+
+ /* Print a value using syntax appropriate for this language. RECURSE is
+ the recursion depth. It is zero-based. */
+ virtual void value_print_inner
+ (struct value *val, struct ui_file *stream, int recurse,
+ const struct value_print_options *options) const;
+
+protected:
+
+ /* This is the overridable part of the GET_SYMBOL_NAME_MATCHER method.
+ See that method for a description of the arguments. */
+
+ virtual symbol_name_matcher_ftype *get_symbol_name_matcher_inner
+ (const lookup_name_info &lookup_name) const;
};
/* Pointer to the language_defn for our current language. This pointer
with the "set language" command. */
#define LA_PRINT_TYPE(type,varstring,stream,show,level,flags) \
- (current_language->la_print_type(type,varstring,stream,show,level,flags))
+ (current_language->print_type(type,varstring,stream,show,level,flags))
#define LA_PRINT_TYPEDEF(type,new_symbol,stream) \
(current_language->la_print_typedef(type,new_symbol,stream))
#define LA_VALUE_PRINT(val,stream,options) \
- (current_language->la_value_print(val,stream,options))
+ (current_language->value_print (val,stream,options))
#define LA_PRINT_CHAR(ch, type, stream) \
(current_language->la_printchar(ch, type, stream))
extern char *language_demangle (const struct language_defn *current_language,
const char *mangled, int options);
-/* A wrapper for la_sniff_from_mangled_name. The arguments and result
- are as for the method. */
-
-extern int language_sniff_from_mangled_name (const struct language_defn *lang,
- const char *mangled,
- char **demangled);
-
-/* Return class name from physname, or NULL. */
-extern char *language_class_name_from_physname (const struct language_defn *,
- const char *physname);
-
-/* Splitting strings into words. */
-extern const char *default_word_break_characters (void);
-
/* Return information about whether TYPE should be passed
(and returned) by reference at the language level. */
struct language_pass_by_ref_info language_pass_by_reference (struct type *type);
void default_print_typedef (struct type *type, struct symbol *new_symbol,
struct ui_file *stream);
-/* 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::unique_xmalloc_ptr<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
projects / deliverable / binutils-gdb.git / blobdiff