gdb: move go_language class declaration into header file

Move the go_language class into go-lang.h, this allows us to have
member functions implemented directly in the different go-*.c files
instead of having to trampoline out to global functions.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* go-exp.y (go_parse): Rename to...
	(go_language::parser): ...this.
	* go-lang.c (go_demangle): Rename to...
	(go_language::demangle_symbol): ...this.
	(go_language::expression_ops): Implementation moved here out of
	class declaration.
	(go_op_print_tab): Rename to...
	(go_language::op_print_tab): ...this, update comment.
	(class go_language): Declaration moved to go-lang.h.
	(go_language::language_arch_info): Implementation moved here out
	of class declaration.
	* go-lang.h (go_parse): Delete declaration.
	(go_demangle): Delete declaration.
	(go_print_type): Delete declaration.
	(go_value_print_inner): Delete declaration.
	(class go_language): Declaration moved here from go-lang.c.
	* go-typeprint.c (go_print_type): Rename to...
	(go_language::print_type): ...this.
	* go-valprint.c (go_value_print_inner): Rename to...
	(go_language::value_print_inner): ...this.
	* symtab.c (demangle_for_lookup): Call demangle_symbol method on
	the go_language object.
This commit is contained in:
Andrew Burgess 2020-10-20 14:03:42 +01:00
parent 76ca72bc5b
commit 82fc57fd6b
7 changed files with 159 additions and 138 deletions

View file

@ -1,3 +1,28 @@
2020-12-23 Andrew Burgess <andrew.burgess@embecosm.com>
* go-exp.y (go_parse): Rename to...
(go_language::parser): ...this.
* go-lang.c (go_demangle): Rename to...
(go_language::demangle_symbol): ...this.
(go_language::expression_ops): Implementation moved here out of
class declaration.
(go_op_print_tab): Rename to...
(go_language::op_print_tab): ...this, update comment.
(class go_language): Declaration moved to go-lang.h.
(go_language::language_arch_info): Implementation moved here out
of class declaration.
* go-lang.h (go_parse): Delete declaration.
(go_demangle): Delete declaration.
(go_print_type): Delete declaration.
(go_value_print_inner): Delete declaration.
(class go_language): Declaration moved here from go-lang.c.
* go-typeprint.c (go_print_type): Rename to...
(go_language::print_type): ...this.
* go-valprint.c (go_value_print_inner): Rename to...
(go_language::value_print_inner): ...this.
* symtab.c (demangle_for_lookup): Call demangle_symbol method on
the go_language object.
2020-12-23 Andrew Burgess <andrew.burgess@embecosm.com>
* c-lang.c (language_defn::printchar): Call emitchar, not

View file

@ -1550,8 +1550,10 @@ yylex (void)
return classify_name (pstate, pstate->expression_context_block);
}
/* See language.h. */
int
go_parse (struct parser_state *par_state)
go_language::parser (struct parser_state *par_state) const
{
/* Setting up the parser state. */
scoped_restore pstate_restore = make_scoped_restore (&pstate);

View file

@ -334,7 +334,7 @@ unpack_mangled_go_symbol (const char *mangled_name,
thus not too much effort is currently put into it. */
char *
go_demangle (const char *mangled_name, int options)
go_language::demangle_symbol (const char *mangled_name, int options) const
{
struct obstack tempbuf;
char *result;
@ -386,6 +386,14 @@ go_demangle (const char *mangled_name, int options)
return result;
}
/* See language.h. */
const struct exp_descriptor *
go_language::expression_ops () const
{
return &exp_descriptor_c;
}
/* Given a Go symbol, return its package or NULL if unknown.
Space for the result is malloc'd, caller must free. */
@ -444,11 +452,11 @@ go_block_package_name (const struct block *block)
return NULL;
}
/* Table mapping opcodes into strings for printing operators
and precedences of the operators.
/* See go-lang.h.
TODO(dje): &^ ? */
static const struct op_print go_op_print_tab[] =
const struct op_print go_language::op_print_tab[] =
{
{",", BINOP_COMMA, PREC_COMMA, 0},
{"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
@ -482,125 +490,43 @@ static const struct op_print go_op_print_tab[] =
{NULL, OP_NULL, PREC_SUFFIX, 0}
};
/* Class representing the Go language. */
/* See language.h. */
class go_language : public language_defn
void
go_language::language_arch_info (struct gdbarch *gdbarch,
struct language_arch_info *lai) const
{
public:
go_language ()
: language_defn (language_go)
{ /* Nothing. */ }
const struct builtin_go_type *builtin = builtin_go_type (gdbarch);
/* See language.h. */
const char *name () const override
{ return "go"; }
/* See language.h. */
const char *natural_name () const override
{ return "Go"; }
/* See language.h. */
void language_arch_info (struct gdbarch *gdbarch,
struct language_arch_info *lai) const override
/* Helper function to allow shorter lines below. */
auto add = [&] (struct type * t) -> struct type *
{
const struct builtin_go_type *builtin = builtin_go_type (gdbarch);
lai->add_primitive_type (t);
return t;
};
/* Helper function to allow shorter lines below. */
auto add = [&] (struct type * t) -> struct type *
{
lai->add_primitive_type (t);
return t;
};
add (builtin->builtin_void);
add (builtin->builtin_char);
add (builtin->builtin_bool);
add (builtin->builtin_int);
add (builtin->builtin_uint);
add (builtin->builtin_uintptr);
add (builtin->builtin_int8);
add (builtin->builtin_int16);
add (builtin->builtin_int32);
add (builtin->builtin_int64);
add (builtin->builtin_uint8);
add (builtin->builtin_uint16);
add (builtin->builtin_uint32);
add (builtin->builtin_uint64);
add (builtin->builtin_float32);
add (builtin->builtin_float64);
add (builtin->builtin_complex64);
add (builtin->builtin_complex128);
add (builtin->builtin_void);
add (builtin->builtin_char);
add (builtin->builtin_bool);
add (builtin->builtin_int);
add (builtin->builtin_uint);
add (builtin->builtin_uintptr);
add (builtin->builtin_int8);
add (builtin->builtin_int16);
add (builtin->builtin_int32);
add (builtin->builtin_int64);
add (builtin->builtin_uint8);
add (builtin->builtin_uint16);
add (builtin->builtin_uint32);
add (builtin->builtin_uint64);
add (builtin->builtin_float32);
add (builtin->builtin_float64);
add (builtin->builtin_complex64);
add (builtin->builtin_complex128);
lai->set_string_char_type (builtin->builtin_char);
lai->set_bool_type (builtin->builtin_bool, "bool");
}
/* See language.h. */
bool sniff_from_mangled_name (const char *mangled,
char **demangled) const override
{
*demangled = go_demangle (mangled, 0);
return *demangled != NULL;
}
/* See language.h. */
char *demangle_symbol (const char *mangled, int options) const override
{
return go_demangle (mangled, options);
}
/* See language.h. */
void print_type (struct type *type, const char *varstring,
struct ui_file *stream, int show, int level,
const struct type_print_options *flags) const override
{
go_print_type (type, varstring, stream, show, level, flags);
}
/* See language.h. */
void value_print_inner
(struct value *val, struct ui_file *stream, int recurse,
const struct value_print_options *options) const override
{
return go_value_print_inner (val, stream, recurse, options);
}
/* See language.h. */
int parser (struct parser_state *ps) const override
{
return go_parse (ps);
}
/* See language.h. */
bool is_string_type_p (struct type *type) const override
{
type = check_typedef (type);
return (type->code () == TYPE_CODE_STRUCT
&& go_classify_struct_type (type) == GO_TYPE_STRING);
}
/* See language.h. */
bool store_sym_names_in_linkage_form_p () const override
{ return true; }
/* See language.h. */
const struct exp_descriptor *expression_ops () const override
{ return &exp_descriptor_c; }
/* See language.h. */
const struct op_print *opcode_print_table () const override
{ return go_op_print_tab; }
};
lai->set_string_char_type (builtin->builtin_char);
lai->set_bool_type (builtin->builtin_bool, "bool");
}
/* Single instance of the Go language class. */

View file

@ -56,34 +56,100 @@ enum go_type
GO_TYPE_STRING
};
/* Defined in go-exp.y. */
extern int go_parse (struct parser_state *);
/* Defined in go-lang.c. */
extern const char *go_main_name (void);
extern enum go_type go_classify_struct_type (struct type *type);
extern char *go_demangle (const char *mangled, int options);
extern char *go_symbol_package_name (const struct symbol *sym);
extern char *go_block_package_name (const struct block *block);
extern const struct builtin_go_type *builtin_go_type (struct gdbarch *);
/* Defined in go-typeprint.c. */
/* Class representing the Go language. */
extern void go_print_type (struct type *type, const char *varstring,
struct ui_file *stream, int show, int level,
const struct type_print_options *flags);
class go_language : public language_defn
{
public:
go_language ()
: language_defn (language_go)
{ /* Nothing. */ }
/* Implement la_value_print_inner for Go. */
/* See language.h. */
extern void go_value_print_inner (struct value *value,
struct ui_file *stream, int recurse,
const struct value_print_options *options);
const char *name () const override
{ return "go"; }
/* See language.h. */
const char *natural_name () const override
{ return "Go"; }
/* See language.h. */
void language_arch_info (struct gdbarch *gdbarch,
struct language_arch_info *lai) const override;
/* See language.h. */
bool sniff_from_mangled_name (const char *mangled,
char **demangled) const override
{
*demangled = demangle_symbol (mangled, 0);
return *demangled != NULL;
}
/* See language.h. */
char *demangle_symbol (const char *mangled, int options) const override;
/* See language.h. */
void print_type (struct type *type, const char *varstring,
struct ui_file *stream, int show, int level,
const struct type_print_options *flags) const override;
/* See language.h. */
void value_print_inner
(struct value *val, struct ui_file *stream, int recurse,
const struct value_print_options *options) const override;
/* See language.h. */
int parser (struct parser_state *ps) const override;
/* See language.h. */
bool is_string_type_p (struct type *type) const override
{
type = check_typedef (type);
return (type->code () == TYPE_CODE_STRUCT
&& go_classify_struct_type (type) == GO_TYPE_STRING);
}
/* See language.h. */
bool store_sym_names_in_linkage_form_p () const override
{ return true; }
/* See language.h. */
const struct exp_descriptor *expression_ops () const override;
/* See language.h. */
const struct op_print *opcode_print_table () const override
{ return op_print_tab; }
private:
/* Table of opcode data for use by OPCODE_PRINT_TABLE member function. */
static const struct op_print op_print_tab[];
};
#endif /* !defined (GO_LANG_H) */

View file

@ -42,9 +42,9 @@
LEVEL indicates level of recursion (for nested definitions). */
void
go_print_type (struct type *type, const char *varstring,
struct ui_file *stream, int show, int level,
const struct type_print_options *flags)
go_language::print_type (struct type *type, const char *varstring,
struct ui_file *stream, int show, int level,
const struct type_print_options *flags) const
{
/* Borrowed from c-typeprint.c. */
if (show > 0)

View file

@ -87,8 +87,9 @@ print_go_string (struct type *type,
/* See go-lang.h. */
void
go_value_print_inner (struct value *val, struct ui_file *stream,
int recurse, const struct value_print_options *options)
go_language::value_print_inner (struct value *val, struct ui_file *stream,
int recurse,
const struct value_print_options *options) const
{
struct type *type = check_typedef (value_type (val));

View file

@ -1843,7 +1843,8 @@ demangle_for_lookup (const char *name, enum language lang,
}
else if (lang == language_go)
{
char *demangled_name = go_demangle (name, 0);
char *demangled_name
= language_def (language_go)->demangle_symbol (name, 0);
if (demangled_name != NULL)
return storage.set_malloc_ptr (demangled_name);
}