/* Source-language-related definitions for GDB.
- Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ Copyright (C) 1991-2021 Free Software Foundation, Inc.
Contributed by the Department of Computer Science at the State University
of New York at Buffalo.
#define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims. */
-/* range_mode ==
- range_mode_auto: range_check set automatically to default of language.
- range_mode_manual: range_check set manually by user. */
-
-extern enum range_mode
- {
- range_mode_auto, range_mode_manual
- }
-range_mode;
-
/* range_check ==
range_check_on: Ranges are checked in GDB expressions, producing errors.
range_check_warn: Ranges are checked, producing warnings.
}
range_check;
-/* case_mode ==
- case_mode_auto: case_sensitivity set upon selection of scope.
- case_mode_manual: case_sensitivity set only by user. */
-
-extern enum case_mode
- {
- case_mode_auto, case_mode_manual
- }
-case_mode;
-
/* array_ordering ==
array_row_major: Arrays are in row major order.
array_column_major: Arrays are in column major order. */
struct language_arch_info
{
- /* Its primitive types. This is a vector ended by a NULL pointer.
- These types can be specified by name in parsing types in
- expressions, regardless of whether the program being debugged
- actually defines such a type. */
- struct type **primitive_type_vector;
+ /* A default constructor. */
+ language_arch_info () = default;
+
+ DISABLE_COPY_AND_ASSIGN (language_arch_info);
+
+ /* Set the default boolean type to be TYPE. If NAME is not nullptr then
+ before using TYPE a symbol called NAME will be looked up, and the type
+ of this symbol will be used instead. Should only be called once when
+ performing setup for a particular language in combination with a
+ particular gdbarch. */
+ void set_bool_type (struct type *type, const char *name = nullptr)
+ {
+ gdb_assert (m_bool_type_default == nullptr);
+ gdb_assert (m_bool_type_name == nullptr);
+ gdb_assert (type != nullptr);
+ m_bool_type_default = type;
+ m_bool_type_name = name;
+ }
+
+ /* Set the type to be used for characters within a string. Should only
+ be called once when performing setup for a particular language in
+ combination with a particular gdbarch. */
+ void set_string_char_type (struct type *type)
+ {
+ gdb_assert (m_string_char_type == nullptr);
+ gdb_assert (type != nullptr);
+ m_string_char_type = type;
+ }
+
+ /* Return the type for characters within a string. */
+ struct type *string_char_type () const
+ { return m_string_char_type; }
+
+ /* Return the type to be used for booleans. */
+ struct type *bool_type () const;
+
+ /* Add TYPE to the list of primitive types for this particular language,
+ with this OS/ABI combination. */
+ void add_primitive_type (struct type *type)
+ {
+ gdb_assert (type != nullptr);
+ primitive_types_and_symbols.push_back (type_and_symbol (type));
+ }
- /* Symbol wrappers around primitive_type_vector, so that the symbol lookup
- machinery can return them. */
- struct symbol **primitive_type_symbols;
+ /* Lookup a primitive type called NAME. Will return nullptr if no
+ matching type is found. */
+ struct type *lookup_primitive_type (const char *name);
+
+ /* Lookup a primitive type for which FILTER returns true. Will return
+ nullptr if no matching type is found. */
+ struct type *lookup_primitive_type
+ (gdb::function_view<bool (struct type *)> filter);
+
+ /* Lookup a primitive type called NAME and return the type as a symbol.
+ LANG is the language for which type is being looked up. */
+ struct symbol *lookup_primitive_type_as_symbol (const char *name,
+ enum language lang);
+private:
+
+ /* A structure storing a type and a corresponding symbol. The type is
+ defined at construction time, while the symbol is lazily created only
+ when asked for, but is then cached for future use. */
+ struct type_and_symbol
+ {
+ /* Constructor. */
+ explicit type_and_symbol (struct type *type)
+ : m_type (type)
+ { /* Nothing. */ }
+
+ /* Default move constructor. */
+ type_and_symbol (type_and_symbol&&) = default;
+
+ DISABLE_COPY_AND_ASSIGN (type_and_symbol);
+
+ /* Return the type from this object. */
+ struct type *type () const
+ { return m_type; }
+
+ /* Create and return a symbol wrapping M_TYPE from this object. */
+ struct symbol *symbol (enum language lang)
+ {
+ if (m_symbol == nullptr)
+ m_symbol = alloc_type_symbol (lang, m_type);
+ return m_symbol;
+ }
+
+ private:
+ /* The type primitive type. */
+ struct type *m_type = nullptr;
+
+ /* A symbol wrapping M_TYPE, only created when first asked for. */
+ struct symbol *m_symbol = nullptr;
+
+ /* Helper function for type lookup as a symbol. Create the symbol
+ corresponding to type TYPE in language LANG. */
+ static struct symbol *alloc_type_symbol (enum language lang,
+ struct type *type);
+ };
+
+ /* Lookup a type_and_symbol entry from the primitive_types_and_symbols
+ vector for a type matching NAME. Return a pointer to the
+ type_and_symbol object from the vector. This will return nullptr if
+ there is no type matching NAME found. */
+ type_and_symbol *lookup_primitive_type_and_symbol (const char *name);
+
+ /* Vector of the primitive types added through add_primitive_type. These
+ types can be specified by name in parsing types in expressions,
+ regardless of whether the program being debugged actually defines such
+ a type.
+
+ Within the vector each type is paired with a lazily created symbol,
+ which can be fetched by the symbol lookup machinery, should they be
+ needed. */
+ std::vector<type_and_symbol> primitive_types_and_symbols;
/* Type of elements of strings. */
- struct type *string_char_type;
+ struct type *m_string_char_type = nullptr;
/* Symbol name of type to use as boolean type, if defined. */
- const char *bool_type_symbol;
+ const char *m_bool_type_name = nullptr;
+
/* Otherwise, this is the default boolean builtin type. */
- struct type *bool_type_default;
+ struct type *m_bool_type_default = nullptr;
};
/* In a language (particularly C++) a function argument of an aggregate
bool destructible = true;
};
-/* Structure tying together assorted information about a language.
-
- As we move over from the old structure based languages to a class
- hierarchy of languages this structure will continue to contain a
- mixture of both data and function pointers.
-
- Once the class hierarchy of languages in place the first task is to
- remove the function pointers from this structure and convert them into
- member functions on the different language classes.
+/* Splitting strings into words. */
+extern const char *default_word_break_characters (void);
- The current plan it to keep the constant data that describes a language
- in this structure, and have each language pass in an instance of this
- structure at construction time. */
+/* Base class from which all other language classes derive. */
-struct language_data
+struct language_defn
+{
+ language_defn (enum language lang)
+ : la_language (lang)
{
- /* Name of the language. */
-
- const char *la_name;
-
- /* Natural or official name of the language. */
-
- const char *la_natural_name;
-
- /* its symtab language-enum (defs.h). */
-
- enum language la_language;
-
- /* Default range checking. */
-
- enum range_check la_range_check;
-
- /* Default case sensitivity. */
- enum case_sensitivity la_case_sensitivity;
-
- /* Multi-dimensional array ordering. */
- enum array_ordering la_array_ordering;
-
- /* Style of macro expansion, if any, supported by this language. */
- enum macro_expansion la_macro_expansion;
-
- /* A NULL-terminated array of file extensions for this language.
- The extension must include the ".", like ".c". If this
- language doesn't need to provide any filename extensions, this
- may be NULL. */
-
- const char *const *la_filename_extensions;
-
- /* Definitions related to expression printing, prefixifying, and
- dumping. */
-
- const struct exp_descriptor *la_exp_desc;
-
- /* Parser function. */
-
- int (*la_parser) (struct parser_state *);
-
- /* Given an expression *EXPP created by prefixifying the result of
- la_parser, perform any remaining processing necessary to complete
- its translation. *EXPP may change; la_post_parser is responsible
- for releasing its previous contents, if necessary. If
- VOID_CONTEXT_P, then no value is expected from the expression.
- If COMPLETING is non-zero, then the expression has been parsed
- for completion, not evaluation. */
-
- void (*la_post_parser) (expression_up *expp, int void_context_p,
- int completing, innermost_block_tracker *tracker);
-
- void (*la_printchar) (int ch, struct type *chtype,
- struct ui_file * stream);
-
- void (*la_printstr) (struct ui_file * stream, struct type *elttype,
- const gdb_byte *string, unsigned int length,
- const char *encoding, int force_ellipses,
- const struct value_print_options *);
-
- 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
- local variable that refers to the current object instance. */
-
- 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. */
-
- 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;
-
- /* Zero if the language has first-class arrays. True if there are no
- array values, and array objects decay to pointers, as in C. */
-
- char c_style_arrays;
-
- /* 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);
+ /* We should only ever create one instance of each language. */
+ gdb_assert (languages[lang] == nullptr);
+ languages[lang] = this;
+ }
- /* 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);
+ /* Which language this is. */
- /* 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.
+ const enum language la_language;
- 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 &);
-
- /* 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);
+ /* Name of the language. */
- /* Return true if TYPE is a string type. */
- bool (*la_is_string_type_p) (struct type *type);
+ virtual const char *name () const = 0;
- /* This string is used by the 'set print max-depth' setting. When GDB
- replaces a struct or union (during value printing) that is "too
- deep" this string is displayed instead. */
- const char *la_struct_too_deep_ellipsis;
+ /* Natural or official name of the language. */
- };
+ virtual const char *natural_name () const = 0;
-/* Base class from which all other language classes derive. */
+ /* Return a vector of file extensions for this language. The extension
+ must include the ".", like ".c". If this language doesn't need to
+ provide any filename extensions, this may be an empty vector (which is
+ the default). */
-struct language_defn : language_data
-{
- language_defn (enum language lang, const language_data &init_data)
- : language_data (init_data)
+ virtual const std::vector<const char *> &filename_extensions () const
{
- /* We should only ever create one instance of each language. */
- gdb_assert (languages[lang] == nullptr);
- languages[lang] = this;
+ static const std::vector<const char *> no_extensions;
+ return no_extensions;
}
/* Print the index of an element of an array. This default
return ::iterate_over_symbols (block, name, domain, callback);
}
- /* 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
- supported, but something goes wrong then an exception is thrown. The
- returned compiler instance is owned by its caller and must be
- deallocated by the caller. If compilation is not supported for this
- language then this method returns NULL. */
+ /* 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 supported, but something goes wrong then an exception
+ is thrown. If compilation is not supported for this language
+ then this method returns NULL. */
+
+ virtual std::unique_ptr<compile_instance> get_compile_instance () const;
+
+ /* 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.
- virtual compile_instance *get_compile_instance () const
+ 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
{
- return nullptr;
+ 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_symbol (const char *mangled, int options) const
+ {
+ return nullptr;
+ }
+
+ /* Print TYPE to STREAM using syntax appropriate for this language.
+ LEVEL is the depth to indent lines by. VARSTRING, if not NULL or the
+ empty string, is the name of a variable and TYPE should be printed in
+ the form of a declaration of a variable named VARSTRING. */
+
+ virtual void print_type (struct type *type, const char *varstring,
+ struct ui_file *stream, int show, int level,
+ const struct type_print_options *flags) 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;
+
+ /* Parser function. */
+
+ virtual int parser (struct parser_state *ps) const;
+
+ /* Print the character CH (of type CHTYPE) on STREAM as part of the
+ contents of a literal string whose delimiter is QUOTER. */
+
+ virtual void emitchar (int ch, struct type *chtype,
+ struct ui_file *stream, int quoter) const;
+
+ virtual void printchar (int ch, struct type *chtype,
+ struct ui_file * stream) const;
+
+/* Print the character string STRING, printing at most LENGTH characters.
+ Printing stops early if the number hits print_max; repeat counts
+ are printed as appropriate. Print ellipses at the end if we
+ had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. */
+
+ virtual void printstr (struct ui_file *stream, struct type *elttype,
+ const gdb_byte *string, unsigned int length,
+ const char *encoding, int force_ellipses,
+ const struct value_print_options *options) const;
+
+
+ /* 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. */
+
+ virtual void print_typedef (struct type *type, struct symbol *new_symbol,
+ struct ui_file *stream) const;
+
+ /* Return true if TYPE is a string type. */
+ virtual bool is_string_type_p (struct type *type) const;
+
+ /* Return a string that is used by the 'set print max-depth' setting.
+ When GDB replaces a struct or union (during value printing) that is
+ "too deep" this string is displayed instead. The default value here
+ suits most languages. If overriding then the string here should
+ ideally be similar in style to the default; an opener, three '.', and
+ a closer. */
+
+ virtual const char *struct_too_deep_ellipsis () const
+ { return "{...}"; }
+
+ /* If this returns non-NULL then the string returned specifies the name
+ of the implicit local variable that refers to the current object
+ instance. Return NULL (the default) for languages that have no name
+ for the current object instance. */
+
+ virtual const char *name_of_this () const
+ { return nullptr; }
+
+ /* Return false if the language has first-class arrays. Return true if
+ there are no array values, and array objects decay to pointers, as in
+ C. The default is true as currently most supported languages behave
+ in this manor. */
+
+ virtual bool c_style_arrays_p () const
+ { return true; }
+
+ /* Return the index to use for extracting the first element of a string,
+ or as the lower bound when creating a new string. The default of
+ choosing 0 or 1 based on C_STYLE_ARRAYS_P works for all currently
+ supported languages except Modula-2. */
+
+ virtual char string_lower_bound () const
+ { return c_style_arrays_p () ? 0 : 1; }
+
+ /* Returns 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 return false, which is the default.
+
+ 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 override this function and
+ return true.
+
+ And finally, other languages such as C or Asm do not have the concept
+ of mangled vs demangled name, so those languages should also override
+ this function and return true, to prevent any accidental demangling
+ through an unrelated language's demangler. */
+
+ virtual bool store_sym_names_in_linkage_form_p () const
+ { return false; }
+
+ /* Default range checking preference. The return value from this
+ function provides the automatic setting for 'set check range'. As a
+ consequence a user is free to override this setting if they want. */
+
+ virtual bool range_checking_on_by_default () const
+ { return false; }
+
+ /* Is this language case sensitive? The return value from this function
+ provides the automativ setting for 'set case-sensitive', as a
+ consequence, a user is free to override this setting if they want. */
+
+ virtual enum case_sensitivity case_sensitivity () const
+ { return case_sensitive_on; }
+
+
+ /* Multi-dimensional array ordering. */
+
+ virtual enum array_ordering array_ordering () const
+ { return array_row_major; }
+
+ /* Style of macro expansion, if any, supported by this language. The
+ default is no macro expansion. */
+
+ virtual enum macro_expansion macro_expansion () const
+ { return macro_expansion_no; }
+
+ /* Return a structure containing various operations on varobj specific
+ for this language. */
+
+ virtual const struct lang_varobj_ops *varobj_ops () 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
}
language_mode;
+/* Return the type that should be used for booleans for language L in
+ GDBARCH. */
+
struct type *language_bool_type (const struct language_defn *l,
struct gdbarch *gdbarch);
+/* Return the type that should be used for characters within a string for
+ language L in GDBARCH. */
+
struct type *language_string_char_type (const struct language_defn *l,
struct gdbarch *gdbarch);
-/* Look up type NAME in language L, and return its definition for architecture
- GDBARCH. Returns NULL if not found. */
+/* Look up a type from the set of OS/ABI specific types defined in
+ GDBARCH for language L. NAME is used for selecting the matching
+ type, and is passed through to the corresponding
+ lookup_primitive_type member function inside the language_arch_info
+ class. */
struct type *language_lookup_primitive_type (const struct language_defn *l,
struct gdbarch *gdbarch,
const char *name);
+/* Look up a type from the set of OS/ABI specific types defined in
+ GDBARCH for language L. FILTER is used for selecting the matching
+ type, and is passed through to the corresponding
+ lookup_primitive_type member function inside the language_arch_info
+ class. */
+
+struct type *language_lookup_primitive_type
+ (const struct language_defn *la,
+ struct gdbarch *gdbarch,
+ gdb::function_view<bool (struct type *)> filter);
+
/* Wrapper around language_lookup_primitive_type to return the
corresponding symbol. */
(LANG)->la_language == language_cplus || \
(LANG)->la_language == language_objc)
-extern void language_info (int);
+/* Print out the current language settings: language, range and
+ type checking. */
+
+extern void language_info ();
extern enum language set_language (enum language);
\f
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))
-
-#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->print_type(type,varstring,stream,show,level,flags))
#define LA_PRINT_CHAR(ch, type, stream) \
- (current_language->la_printchar(ch, type, stream))
+ (current_language->printchar (ch, type, stream))
#define LA_PRINT_STRING(stream, elttype, string, length, encoding, force_ellipses, options) \
- (current_language->la_printstr(stream, elttype, string, length, \
- encoding, force_ellipses,options))
-#define LA_EMIT_CHAR(ch, type, stream, quoter) \
- (current_language->la_emitchar(ch, type, stream, quoter))
-
-#define LA_PRINT_ARRAY_INDEX(index_type, index_value, stream, options) \
- (current_language->print_array_index(index_type, index_value, stream, \
- options))
-
-#define LA_ITERATE_OVER_SYMBOLS(BLOCK, NAME, DOMAIN, CALLBACK) \
- (current_language->iterate_over_symbols (BLOCK, NAME, DOMAIN, CALLBACK))
+ (current_language->printstr (stream, elttype, string, length, \
+ encoding, force_ellipses,options))
/* Test a character to decide whether it can be printed in literal form
or needs to be printed in another representation. For example,
extern int pointer_type (struct type *);
-/* Return true if TYPE is a string type, otherwise return false. This
- default implementation only detects TYPE_CODE_STRING. */
-extern bool default_is_string_type_p (struct type *type);
-
/* Error messages */
extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
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);
-/* The default implementation of la_print_typedef. */
-void default_print_typedef (struct type *type, struct symbol *new_symbol,
- struct ui_file *stream);
-
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