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a8e9d24718
Currently each language has a la_print_typedef method, this is only
used for the "info types" command.
The documentation for "info types" says:
Print a brief description of all types whose names match the regular
expression @var{regexp} (or all types in your program, if you supply
no argument).
However, if we consider this C code:
typedef struct {
int a;
} my_type;
Then currently with "info types" this will be printed like this:
3: typedef struct {
int a;
} my_type;
I see two problems with this, first the indentation is clearly broken,
second, if the struct contained more fields then it feels like the
actual type names could easily get lost in the noise.
Given that "info types" is about discovering type names, I think there
is an argument to be made that we should focus on giving _only_ the
briefest summary for "info types", and if the user wants to know more
they can take the type name and plug it into "ptype". As such, I
propose that a better output would be:
3: typedef struct {...} my_type;
The user understands that there is a type called `my_type`, and that
it's an alias for an anonymous structure type.
The change to achieve this turns out to be pretty simple, but only
effects languages that make use of c_print_typedef, which are C, C++,
asm, minimal, d, go, objc, and opencl. Other languages will for now
do whatever they used to do.
The patch to change how anonymous structs are displayed also changes
the display of anonymous enums, consider this code sample:
typedef enum {
AA, BB, CC
} anon_enum_t;
This used to be displayed like this:
3: typedef enum {AA, BB, CC} anon_enum_t;
Which will quickly become cluttered for enums with a large number of
values. The modified output looks like this:
3: typedef enum {...} anon_enum_t;
Again, the user can always make use of ptype if they want to see the
details of the anon_enum_t type.
It is worth pointing out that this change (to use {...}) only effects
anonymous structs and enums, named types don't change with this patch,
consider this code:
struct struct_t {
int i;
};
enum enum_t {
AA, BB, CC
};
The output from 'info types' remains unchanged, like this:
4: enum enum_t;
1: struct struct_t;
An additional area of interest is how C++ handles anonymous types used
within a typedef; enums are handled basically inline with how C
handles them, but structs (and classes) are slightly different. The
behaviour before the patch is different, and is unchanged by this
patch. Consider this code compiled for C++:
typedef struct {
int i;
} struct_t;
Both before and after this patch, this is show by 'info types' as:
3: typedef struct_t struct_t;
Unions are displayed similarly to structs in both C and C++, the
handling of anonymous unions changes for C in the same way that
it changes for anonymous structs.
I did look at ada, as this is the only language to actually have some
tests for "info types", however, as I understand it ada doesn't really
support typedefs, however, by forcing the language we can see what ada
would print. So, if we 'set language ada', then originally we printed
this:
3: record
a: int;
end record
Again the indentation is clearly broken, but we also have no mention
of the type name at all, which is odd, but understandable given the
lack of typedefs. If I make a similar change as I'm proposing for C,
then we now get this output:
3: record ... end record
Which is even less informative I think. However, the original output
_is_ tested for in gdb.ada/info_auto_lang.exp, and its not clear to me
if the change is a good one or not, so for now I have left this out.
gdb/ChangeLog:
* c-typeprint.c (c_print_typedef): Pass -1 instead of 0 to
type_print.
gdb/testsuite/ChangeLog:
* gdb.ada/info_auto_lang.exp: Update expected results.
* gdb.base/info-types.c: Add additional types to check.
* gdb.base/info-types.exp: Update expected results.
1712 lines
49 KiB
C
1712 lines
49 KiB
C
/* Support for printing C and C++ types for GDB, the GNU debugger.
|
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Copyright (C) 1986-2019 Free Software Foundation, Inc.
|
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|
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This file is part of GDB.
|
||
|
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This program is free software; you can redistribute it and/or modify
|
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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.
|
||
|
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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
|
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "gdb_obstack.h"
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#include "bfd.h" /* Binary File Description. */
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "value.h"
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#include "gdbcore.h"
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#include "target.h"
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#include "language.h"
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#include "demangle.h"
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#include "c-lang.h"
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#include "cli/cli-style.h"
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#include "typeprint.h"
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#include "cp-abi.h"
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#include "cp-support.h"
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/* A list of access specifiers used for printing. */
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enum access_specifier
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{
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s_none,
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s_public,
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s_private,
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s_protected
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};
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static void c_type_print_varspec_suffix (struct type *, struct ui_file *, int,
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int, int,
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enum language,
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const struct type_print_options *);
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static void c_type_print_varspec_prefix (struct type *,
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struct ui_file *,
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int, int, int,
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enum language,
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const struct type_print_options *,
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struct print_offset_data *);
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/* Print "const", "volatile", or address space modifiers. */
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static void c_type_print_modifier (struct type *,
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struct ui_file *,
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int, int);
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static void c_type_print_base_1 (struct type *type, struct ui_file *stream,
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int show, int level, enum language language,
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const struct type_print_options *flags,
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struct print_offset_data *podata);
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/* A callback function for cp_canonicalize_string_full that uses
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typedef_hash_table::find_typedef. */
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static const char *
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find_typedef_for_canonicalize (struct type *t, void *data)
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{
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return typedef_hash_table::find_typedef
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((const struct type_print_options *) data, t);
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}
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/* Print NAME on STREAM. If the 'raw' field of FLAGS is not set,
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canonicalize NAME using the local typedefs first. */
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static void
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print_name_maybe_canonical (const char *name,
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const struct type_print_options *flags,
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struct ui_file *stream)
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{
|
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std::string s;
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|
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if (!flags->raw)
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s = cp_canonicalize_string_full (name,
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find_typedef_for_canonicalize,
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(void *) flags);
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fputs_filtered (!s.empty () ? s.c_str () : name, stream);
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}
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/* Helper function for c_print_type. */
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static void
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c_print_type_1 (struct type *type,
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const char *varstring,
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struct ui_file *stream,
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int show, int level,
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enum language language,
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const struct type_print_options *flags,
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struct print_offset_data *podata)
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{
|
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enum type_code code;
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int demangled_args;
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int need_post_space;
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const char *local_name;
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|
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if (show > 0)
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type = check_typedef (type);
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local_name = typedef_hash_table::find_typedef (flags, type);
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code = TYPE_CODE (type);
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if (local_name != NULL)
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{
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fputs_filtered (local_name, stream);
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if (varstring != NULL && *varstring != '\0')
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fputs_filtered (" ", stream);
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}
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else
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{
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c_type_print_base_1 (type, stream, show, level, language, flags, podata);
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if ((varstring != NULL && *varstring != '\0')
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/* Need a space if going to print stars or brackets;
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but not if we will print just a type name. */
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|| ((show > 0 || TYPE_NAME (type) == 0)
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&& (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
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|| code == TYPE_CODE_METHOD
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|| (code == TYPE_CODE_ARRAY
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&& !TYPE_VECTOR (type))
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|| code == TYPE_CODE_MEMBERPTR
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|| code == TYPE_CODE_METHODPTR
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|| TYPE_IS_REFERENCE (type))))
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fputs_filtered (" ", stream);
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need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
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c_type_print_varspec_prefix (type, stream, show, 0, need_post_space,
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language, flags, podata);
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}
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|
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if (varstring != NULL)
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{
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if (code == TYPE_CODE_FUNC || code == TYPE_CODE_METHOD)
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fputs_styled (varstring, function_name_style.style (), stream);
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else
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fputs_filtered (varstring, stream);
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/* For demangled function names, we have the arglist as part of
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the name, so don't print an additional pair of ()'s. */
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if (local_name == NULL)
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{
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demangled_args = strchr (varstring, '(') != NULL;
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c_type_print_varspec_suffix (type, stream, show,
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0, demangled_args,
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language, flags);
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}
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}
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}
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/* LEVEL is the depth to indent lines by. */
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void
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c_print_type (struct type *type,
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const char *varstring,
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struct ui_file *stream,
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int show, int level,
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const struct type_print_options *flags)
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{
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struct print_offset_data podata;
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c_print_type_1 (type, varstring, stream, show, level,
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current_language->la_language, flags, &podata);
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}
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/* See c-lang.h. */
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void
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c_print_type (struct type *type,
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const char *varstring,
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struct ui_file *stream,
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int show, int level,
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enum language language,
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const struct type_print_options *flags)
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{
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struct print_offset_data podata;
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c_print_type_1 (type, varstring, stream, show, level, language, flags,
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&podata);
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}
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/* Print a typedef using C syntax. TYPE is the underlying type.
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NEW_SYMBOL is the symbol naming the type. STREAM is the stream on
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which to print. */
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void
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c_print_typedef (struct type *type,
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struct symbol *new_symbol,
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struct ui_file *stream)
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{
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type = check_typedef (type);
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fprintf_filtered (stream, "typedef ");
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type_print (type, "", stream, -1);
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if (TYPE_NAME ((SYMBOL_TYPE (new_symbol))) == 0
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|| strcmp (TYPE_NAME ((SYMBOL_TYPE (new_symbol))),
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SYMBOL_LINKAGE_NAME (new_symbol)) != 0
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|| TYPE_CODE (SYMBOL_TYPE (new_symbol)) == TYPE_CODE_TYPEDEF)
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fprintf_filtered (stream, " %s", SYMBOL_PRINT_NAME (new_symbol));
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fprintf_filtered (stream, ";\n");
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}
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/* If TYPE is a derived type, then print out derivation information.
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Print only the actual base classes of this type, not the base
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classes of the base classes. I.e. for the derivation hierarchy:
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class A { int a; };
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class B : public A {int b; };
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class C : public B {int c; };
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Print the type of class C as:
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class C : public B {
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int c;
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}
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Not as the following (like gdb used to), which is not legal C++
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syntax for derived types and may be confused with the multiple
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inheritance form:
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class C : public B : public A {
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int c;
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}
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In general, gdb should try to print the types as closely as
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possible to the form that they appear in the source code. */
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static void
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cp_type_print_derivation_info (struct ui_file *stream,
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struct type *type,
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const struct type_print_options *flags)
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{
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const char *name;
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int i;
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for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
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{
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wrap_here (" ");
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fputs_filtered (i == 0 ? ": " : ", ", stream);
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fprintf_filtered (stream, "%s%s ",
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BASETYPE_VIA_PUBLIC (type, i)
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? "public" : (TYPE_FIELD_PROTECTED (type, i)
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? "protected" : "private"),
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BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
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name = TYPE_NAME (TYPE_BASECLASS (type, i));
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if (name)
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print_name_maybe_canonical (name, flags, stream);
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else
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fprintf_filtered (stream, "(null)");
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}
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if (i > 0)
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{
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fputs_filtered (" ", stream);
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}
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}
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/* Print the C++ method arguments ARGS to the file STREAM. */
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static void
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cp_type_print_method_args (struct type *mtype, const char *prefix,
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const char *varstring, int staticp,
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struct ui_file *stream,
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enum language language,
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const struct type_print_options *flags)
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{
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struct field *args = TYPE_FIELDS (mtype);
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int nargs = TYPE_NFIELDS (mtype);
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int varargs = TYPE_VARARGS (mtype);
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int i;
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fprintf_symbol_filtered (stream, prefix,
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language_cplus, DMGL_ANSI);
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fprintf_symbol_filtered (stream, varstring,
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language_cplus, DMGL_ANSI);
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fputs_filtered ("(", stream);
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/* Skip the class variable. We keep this here to accommodate older
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compilers and debug formats which may not support artificial
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parameters. */
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i = staticp ? 0 : 1;
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if (nargs > i)
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{
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while (i < nargs)
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{
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struct field arg = args[i++];
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/* Skip any artificial arguments. */
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if (FIELD_ARTIFICIAL (arg))
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continue;
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c_print_type (arg.type, "", stream, 0, 0, flags);
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if (i == nargs && varargs)
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fprintf_filtered (stream, ", ...");
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else if (i < nargs)
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{
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fprintf_filtered (stream, ", ");
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wrap_here (" ");
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}
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}
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}
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else if (varargs)
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fprintf_filtered (stream, "...");
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else if (language == language_cplus)
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fprintf_filtered (stream, "void");
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fprintf_filtered (stream, ")");
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/* For non-static methods, read qualifiers from the type of
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THIS. */
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if (!staticp)
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{
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struct type *domain;
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gdb_assert (nargs > 0);
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gdb_assert (TYPE_CODE (args[0].type) == TYPE_CODE_PTR);
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domain = TYPE_TARGET_TYPE (args[0].type);
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if (TYPE_CONST (domain))
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fprintf_filtered (stream, " const");
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if (TYPE_VOLATILE (domain))
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fprintf_filtered (stream, " volatile");
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if (TYPE_RESTRICT (domain))
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fprintf_filtered (stream, " restrict");
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if (TYPE_ATOMIC (domain))
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fprintf_filtered (stream, " _Atomic");
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}
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}
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/* Print any asterisks or open-parentheses needed before the
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variable name (to describe its type).
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On outermost call, pass 0 for PASSED_A_PTR.
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On outermost call, SHOW > 0 means should ignore
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any typename for TYPE and show its details.
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SHOW is always zero on recursive calls.
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NEED_POST_SPACE is non-zero when a space will be be needed
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between a trailing qualifier and a field, variable, or function
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name. */
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static void
|
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c_type_print_varspec_prefix (struct type *type,
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struct ui_file *stream,
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int show, int passed_a_ptr,
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int need_post_space,
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enum language language,
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const struct type_print_options *flags,
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struct print_offset_data *podata)
|
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{
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const char *name;
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|
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if (type == 0)
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return;
|
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|
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if (TYPE_NAME (type) && show <= 0)
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return;
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|
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QUIT;
|
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|
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switch (TYPE_CODE (type))
|
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{
|
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case TYPE_CODE_PTR:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 1, 1, language, flags,
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podata);
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fprintf_filtered (stream, "*");
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c_type_print_modifier (type, stream, 1, need_post_space);
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break;
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case TYPE_CODE_MEMBERPTR:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 0, 0, language, flags, podata);
|
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name = TYPE_NAME (TYPE_SELF_TYPE (type));
|
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if (name)
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print_name_maybe_canonical (name, flags, stream);
|
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else
|
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c_type_print_base_1 (TYPE_SELF_TYPE (type),
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stream, -1, passed_a_ptr, language, flags,
|
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podata);
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fprintf_filtered (stream, "::*");
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break;
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|
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case TYPE_CODE_METHODPTR:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 0, 0, language, flags,
|
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podata);
|
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fprintf_filtered (stream, "(");
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name = TYPE_NAME (TYPE_SELF_TYPE (type));
|
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if (name)
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print_name_maybe_canonical (name, flags, stream);
|
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else
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c_type_print_base_1 (TYPE_SELF_TYPE (type),
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stream, -1, passed_a_ptr, language, flags,
|
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podata);
|
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fprintf_filtered (stream, "::*");
|
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break;
|
||
|
||
case TYPE_CODE_REF:
|
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case TYPE_CODE_RVALUE_REF:
|
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
|
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stream, show, 1, 0, language, flags,
|
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podata);
|
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fprintf_filtered (stream, TYPE_CODE(type) == TYPE_CODE_REF ? "&" : "&&");
|
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c_type_print_modifier (type, stream, 1, need_post_space);
|
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break;
|
||
|
||
case TYPE_CODE_METHOD:
|
||
case TYPE_CODE_FUNC:
|
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
|
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stream, show, 0, 0, language, flags,
|
||
podata);
|
||
if (passed_a_ptr)
|
||
fprintf_filtered (stream, "(");
|
||
break;
|
||
|
||
case TYPE_CODE_ARRAY:
|
||
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
|
||
stream, show, 0, 0, language, flags,
|
||
podata);
|
||
if (passed_a_ptr)
|
||
fprintf_filtered (stream, "(");
|
||
break;
|
||
|
||
case TYPE_CODE_TYPEDEF:
|
||
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
|
||
stream, show, passed_a_ptr, 0,
|
||
language, flags, podata);
|
||
break;
|
||
|
||
case TYPE_CODE_UNDEF:
|
||
case TYPE_CODE_STRUCT:
|
||
case TYPE_CODE_UNION:
|
||
case TYPE_CODE_ENUM:
|
||
case TYPE_CODE_FLAGS:
|
||
case TYPE_CODE_INT:
|
||
case TYPE_CODE_FLT:
|
||
case TYPE_CODE_VOID:
|
||
case TYPE_CODE_ERROR:
|
||
case TYPE_CODE_CHAR:
|
||
case TYPE_CODE_BOOL:
|
||
case TYPE_CODE_SET:
|
||
case TYPE_CODE_RANGE:
|
||
case TYPE_CODE_STRING:
|
||
case TYPE_CODE_COMPLEX:
|
||
case TYPE_CODE_NAMESPACE:
|
||
case TYPE_CODE_DECFLOAT:
|
||
/* These types need no prefix. They are listed here so that
|
||
gcc -Wall will reveal any types that haven't been handled. */
|
||
break;
|
||
default:
|
||
error (_("type not handled in c_type_print_varspec_prefix()"));
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Print out "const" and "volatile" attributes,
|
||
and address space id if present.
|
||
TYPE is a pointer to the type being printed out.
|
||
STREAM is the output destination.
|
||
NEED_PRE_SPACE = 1 indicates an initial white space is needed.
|
||
NEED_POST_SPACE = 1 indicates a final white space is needed. */
|
||
|
||
static void
|
||
c_type_print_modifier (struct type *type, struct ui_file *stream,
|
||
int need_pre_space, int need_post_space)
|
||
{
|
||
int did_print_modifier = 0;
|
||
const char *address_space_id;
|
||
|
||
/* We don't print `const' qualifiers for references --- since all
|
||
operators affect the thing referenced, not the reference itself,
|
||
every reference is `const'. */
|
||
if (TYPE_CONST (type) && !TYPE_IS_REFERENCE (type))
|
||
{
|
||
if (need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "const");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (TYPE_VOLATILE (type))
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "volatile");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (TYPE_RESTRICT (type))
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "restrict");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (TYPE_ATOMIC (type))
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "_Atomic");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
address_space_id = address_space_int_to_name (get_type_arch (type),
|
||
TYPE_INSTANCE_FLAGS (type));
|
||
if (address_space_id)
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "@%s", address_space_id);
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (did_print_modifier && need_post_space)
|
||
fprintf_filtered (stream, " ");
|
||
}
|
||
|
||
|
||
/* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
|
||
or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
|
||
in non-static methods, are displayed if LINKAGE_NAME is zero. If
|
||
LINKAGE_NAME is non-zero and LANGUAGE is language_cplus the topmost
|
||
parameter types get removed their possible const and volatile qualifiers to
|
||
match demangled linkage name parameters part of such function type.
|
||
LANGUAGE is the language in which TYPE was defined. This is a necessary
|
||
evil since this code is used by the C and C++. */
|
||
|
||
void
|
||
c_type_print_args (struct type *type, struct ui_file *stream,
|
||
int linkage_name, enum language language,
|
||
const struct type_print_options *flags)
|
||
{
|
||
int i;
|
||
int printed_any = 0;
|
||
|
||
fprintf_filtered (stream, "(");
|
||
|
||
for (i = 0; i < TYPE_NFIELDS (type); i++)
|
||
{
|
||
struct type *param_type;
|
||
|
||
if (TYPE_FIELD_ARTIFICIAL (type, i) && linkage_name)
|
||
continue;
|
||
|
||
if (printed_any)
|
||
{
|
||
fprintf_filtered (stream, ", ");
|
||
wrap_here (" ");
|
||
}
|
||
|
||
param_type = TYPE_FIELD_TYPE (type, i);
|
||
|
||
if (language == language_cplus && linkage_name)
|
||
{
|
||
/* C++ standard, 13.1 Overloadable declarations, point 3, item:
|
||
- Parameter declarations that differ only in the presence or
|
||
absence of const and/or volatile are equivalent.
|
||
|
||
And the const/volatile qualifiers are not present in the mangled
|
||
names as produced by GCC. */
|
||
|
||
param_type = make_cv_type (0, 0, param_type, NULL);
|
||
}
|
||
|
||
c_print_type (param_type, "", stream, -1, 0, language, flags);
|
||
printed_any = 1;
|
||
}
|
||
|
||
if (printed_any && TYPE_VARARGS (type))
|
||
{
|
||
/* Print out a trailing ellipsis for varargs functions. Ignore
|
||
TYPE_VARARGS if the function has no named arguments; that
|
||
represents unprototyped (K&R style) C functions. */
|
||
if (printed_any && TYPE_VARARGS (type))
|
||
{
|
||
fprintf_filtered (stream, ", ");
|
||
wrap_here (" ");
|
||
fprintf_filtered (stream, "...");
|
||
}
|
||
}
|
||
else if (!printed_any
|
||
&& (TYPE_PROTOTYPED (type) || language == language_cplus))
|
||
fprintf_filtered (stream, "void");
|
||
|
||
fprintf_filtered (stream, ")");
|
||
}
|
||
|
||
/* Return true iff the j'th overloading of the i'th method of TYPE
|
||
is a type conversion operator, like `operator int () { ... }'.
|
||
When listing a class's methods, we don't print the return type of
|
||
such operators. */
|
||
|
||
static int
|
||
is_type_conversion_operator (struct type *type, int i, int j)
|
||
{
|
||
/* I think the whole idea of recognizing type conversion operators
|
||
by their name is pretty terrible. But I don't think our present
|
||
data structure gives us any other way to tell. If you know of
|
||
some other way, feel free to rewrite this function. */
|
||
const char *name = TYPE_FN_FIELDLIST_NAME (type, i);
|
||
|
||
if (!startswith (name, CP_OPERATOR_STR))
|
||
return 0;
|
||
|
||
name += 8;
|
||
if (! strchr (" \t\f\n\r", *name))
|
||
return 0;
|
||
|
||
while (strchr (" \t\f\n\r", *name))
|
||
name++;
|
||
|
||
if (!('a' <= *name && *name <= 'z')
|
||
&& !('A' <= *name && *name <= 'Z')
|
||
&& *name != '_')
|
||
/* If this doesn't look like the start of an identifier, then it
|
||
isn't a type conversion operator. */
|
||
return 0;
|
||
else if (startswith (name, "new"))
|
||
name += 3;
|
||
else if (startswith (name, "delete"))
|
||
name += 6;
|
||
else
|
||
/* If it doesn't look like new or delete, it's a type conversion
|
||
operator. */
|
||
return 1;
|
||
|
||
/* Is that really the end of the name? */
|
||
if (('a' <= *name && *name <= 'z')
|
||
|| ('A' <= *name && *name <= 'Z')
|
||
|| ('0' <= *name && *name <= '9')
|
||
|| *name == '_')
|
||
/* No, so the identifier following "operator" must be a type name,
|
||
and this is a type conversion operator. */
|
||
return 1;
|
||
|
||
/* That was indeed the end of the name, so it was `operator new' or
|
||
`operator delete', neither of which are type conversion
|
||
operators. */
|
||
return 0;
|
||
}
|
||
|
||
/* Given a C++ qualified identifier QID, strip off the qualifiers,
|
||
yielding the unqualified name. The return value is a pointer into
|
||
the original string.
|
||
|
||
It's a pity we don't have this information in some more structured
|
||
form. Even the author of this function feels that writing little
|
||
parsers like this everywhere is stupid. */
|
||
|
||
static char *
|
||
remove_qualifiers (char *qid)
|
||
{
|
||
int quoted = 0; /* Zero if we're not in quotes;
|
||
'"' if we're in a double-quoted string;
|
||
'\'' if we're in a single-quoted string. */
|
||
int depth = 0; /* Number of unclosed parens we've seen. */
|
||
char *parenstack = (char *) alloca (strlen (qid));
|
||
char *scan;
|
||
char *last = 0; /* The character after the rightmost
|
||
`::' token we've seen so far. */
|
||
|
||
for (scan = qid; *scan; scan++)
|
||
{
|
||
if (quoted)
|
||
{
|
||
if (*scan == quoted)
|
||
quoted = 0;
|
||
else if (*scan == '\\' && *(scan + 1))
|
||
scan++;
|
||
}
|
||
else if (scan[0] == ':' && scan[1] == ':')
|
||
{
|
||
/* If we're inside parenthesis (i.e., an argument list) or
|
||
angle brackets (i.e., a list of template arguments), then
|
||
we don't record the position of this :: token, since it's
|
||
not relevant to the top-level structure we're trying to
|
||
operate on. */
|
||
if (depth == 0)
|
||
{
|
||
last = scan + 2;
|
||
scan++;
|
||
}
|
||
}
|
||
else if (*scan == '"' || *scan == '\'')
|
||
quoted = *scan;
|
||
else if (*scan == '(')
|
||
parenstack[depth++] = ')';
|
||
else if (*scan == '[')
|
||
parenstack[depth++] = ']';
|
||
/* We're going to treat <> as a pair of matching characters,
|
||
since we're more likely to see those in template id's than
|
||
real less-than characters. What a crock. */
|
||
else if (*scan == '<')
|
||
parenstack[depth++] = '>';
|
||
else if (*scan == ')' || *scan == ']' || *scan == '>')
|
||
{
|
||
if (depth > 0 && parenstack[depth - 1] == *scan)
|
||
depth--;
|
||
else
|
||
{
|
||
/* We're going to do a little error recovery here. If
|
||
we don't find a match for *scan on the paren stack,
|
||
but there is something lower on the stack that does
|
||
match, we pop the stack to that point. */
|
||
int i;
|
||
|
||
for (i = depth - 1; i >= 0; i--)
|
||
if (parenstack[i] == *scan)
|
||
{
|
||
depth = i;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (last)
|
||
return last;
|
||
else
|
||
/* We didn't find any :: tokens at the top level, so declare the
|
||
whole thing an unqualified identifier. */
|
||
return qid;
|
||
}
|
||
|
||
/* Print any array sizes, function arguments or close parentheses
|
||
needed after the variable name (to describe its type).
|
||
Args work like c_type_print_varspec_prefix. */
|
||
|
||
static void
|
||
c_type_print_varspec_suffix (struct type *type,
|
||
struct ui_file *stream,
|
||
int show, int passed_a_ptr,
|
||
int demangled_args,
|
||
enum language language,
|
||
const struct type_print_options *flags)
|
||
{
|
||
if (type == 0)
|
||
return;
|
||
|
||
if (TYPE_NAME (type) && show <= 0)
|
||
return;
|
||
|
||
QUIT;
|
||
|
||
switch (TYPE_CODE (type))
|
||
{
|
||
case TYPE_CODE_ARRAY:
|
||
{
|
||
LONGEST low_bound, high_bound;
|
||
int is_vector = TYPE_VECTOR (type);
|
||
|
||
if (passed_a_ptr)
|
||
fprintf_filtered (stream, ")");
|
||
|
||
fprintf_filtered (stream, (is_vector ?
|
||
" __attribute__ ((vector_size(" : "["));
|
||
/* Bounds are not yet resolved, print a bounds placeholder instead. */
|
||
if (TYPE_HIGH_BOUND_KIND (TYPE_INDEX_TYPE (type)) == PROP_LOCEXPR
|
||
|| TYPE_HIGH_BOUND_KIND (TYPE_INDEX_TYPE (type)) == PROP_LOCLIST)
|
||
fprintf_filtered (stream, "variable length");
|
||
else if (get_array_bounds (type, &low_bound, &high_bound))
|
||
fprintf_filtered (stream, "%s",
|
||
plongest (high_bound - low_bound + 1));
|
||
fprintf_filtered (stream, (is_vector ? ")))" : "]"));
|
||
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 0, 0, language, flags);
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_MEMBERPTR:
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 0, 0, language, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_METHODPTR:
|
||
fprintf_filtered (stream, ")");
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 0, 0, language, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_PTR:
|
||
case TYPE_CODE_REF:
|
||
case TYPE_CODE_RVALUE_REF:
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 1, 0, language, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_METHOD:
|
||
case TYPE_CODE_FUNC:
|
||
if (passed_a_ptr)
|
||
fprintf_filtered (stream, ")");
|
||
if (!demangled_args)
|
||
c_type_print_args (type, stream, 0, language, flags);
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, passed_a_ptr, 0, language, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_TYPEDEF:
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, passed_a_ptr, 0, language, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_UNDEF:
|
||
case TYPE_CODE_STRUCT:
|
||
case TYPE_CODE_UNION:
|
||
case TYPE_CODE_FLAGS:
|
||
case TYPE_CODE_ENUM:
|
||
case TYPE_CODE_INT:
|
||
case TYPE_CODE_FLT:
|
||
case TYPE_CODE_VOID:
|
||
case TYPE_CODE_ERROR:
|
||
case TYPE_CODE_CHAR:
|
||
case TYPE_CODE_BOOL:
|
||
case TYPE_CODE_SET:
|
||
case TYPE_CODE_RANGE:
|
||
case TYPE_CODE_STRING:
|
||
case TYPE_CODE_COMPLEX:
|
||
case TYPE_CODE_NAMESPACE:
|
||
case TYPE_CODE_DECFLOAT:
|
||
/* These types do not need a suffix. They are listed so that
|
||
gcc -Wall will report types that may not have been
|
||
considered. */
|
||
break;
|
||
default:
|
||
error (_("type not handled in c_type_print_varspec_suffix()"));
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* A helper for c_type_print_base that displays template
|
||
parameters and their bindings, if needed.
|
||
|
||
TABLE is the local bindings table to use. If NULL, no printing is
|
||
done. Note that, at this point, TABLE won't have any useful
|
||
information in it -- but it is also used as a flag to
|
||
print_name_maybe_canonical to activate searching the global typedef
|
||
table.
|
||
|
||
TYPE is the type whose template arguments are being displayed.
|
||
|
||
STREAM is the stream on which to print. */
|
||
|
||
static void
|
||
c_type_print_template_args (const struct type_print_options *flags,
|
||
struct type *type, struct ui_file *stream)
|
||
{
|
||
int first = 1, i;
|
||
|
||
if (flags->raw)
|
||
return;
|
||
|
||
for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (type); ++i)
|
||
{
|
||
struct symbol *sym = TYPE_TEMPLATE_ARGUMENT (type, i);
|
||
|
||
if (SYMBOL_CLASS (sym) != LOC_TYPEDEF)
|
||
continue;
|
||
|
||
if (first)
|
||
{
|
||
wrap_here (" ");
|
||
fprintf_filtered (stream, _("[with %s = "),
|
||
SYMBOL_LINKAGE_NAME (sym));
|
||
first = 0;
|
||
}
|
||
else
|
||
{
|
||
fputs_filtered (", ", stream);
|
||
wrap_here (" ");
|
||
fprintf_filtered (stream, "%s = ", SYMBOL_LINKAGE_NAME (sym));
|
||
}
|
||
|
||
c_print_type (SYMBOL_TYPE (sym), "", stream, -1, 0, flags);
|
||
}
|
||
|
||
if (!first)
|
||
fputs_filtered (_("] "), stream);
|
||
}
|
||
|
||
/* Use 'print_spaces_filtered', but take into consideration the
|
||
type_print_options FLAGS in order to determine how many whitespaces
|
||
will be printed. */
|
||
|
||
static void
|
||
print_spaces_filtered_with_print_options
|
||
(int level, struct ui_file *stream, const struct type_print_options *flags)
|
||
{
|
||
if (!flags->print_offsets)
|
||
print_spaces_filtered (level, stream);
|
||
else
|
||
print_spaces_filtered (level + print_offset_data::indentation, stream);
|
||
}
|
||
|
||
/* Output an access specifier to STREAM, if needed. LAST_ACCESS is the
|
||
last access specifier output (typically returned by this function). */
|
||
|
||
static enum access_specifier
|
||
output_access_specifier (struct ui_file *stream,
|
||
enum access_specifier last_access,
|
||
int level, bool is_protected, bool is_private,
|
||
const struct type_print_options *flags)
|
||
{
|
||
if (is_protected)
|
||
{
|
||
if (last_access != s_protected)
|
||
{
|
||
last_access = s_protected;
|
||
print_spaces_filtered_with_print_options (level + 2, stream, flags);
|
||
fprintf_filtered (stream, "protected:\n");
|
||
}
|
||
}
|
||
else if (is_private)
|
||
{
|
||
if (last_access != s_private)
|
||
{
|
||
last_access = s_private;
|
||
print_spaces_filtered_with_print_options (level + 2, stream, flags);
|
||
fprintf_filtered (stream, "private:\n");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (last_access != s_public)
|
||
{
|
||
last_access = s_public;
|
||
print_spaces_filtered_with_print_options (level + 2, stream, flags);
|
||
fprintf_filtered (stream, "public:\n");
|
||
}
|
||
}
|
||
|
||
return last_access;
|
||
}
|
||
|
||
/* Return true if an access label (i.e., "public:", "private:",
|
||
"protected:") needs to be printed for TYPE. */
|
||
|
||
static bool
|
||
need_access_label_p (struct type *type)
|
||
{
|
||
if (TYPE_DECLARED_CLASS (type))
|
||
{
|
||
QUIT;
|
||
for (int i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++)
|
||
if (!TYPE_FIELD_PRIVATE (type, i))
|
||
return true;
|
||
QUIT;
|
||
for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
|
||
for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
|
||
if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
|
||
j), i))
|
||
return true;
|
||
QUIT;
|
||
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
|
||
if (!TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
|
||
return true;
|
||
}
|
||
else
|
||
{
|
||
QUIT;
|
||
for (int i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++)
|
||
if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
|
||
return true;
|
||
QUIT;
|
||
for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
|
||
{
|
||
QUIT;
|
||
for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
|
||
if (TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type,
|
||
j), i)
|
||
|| TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
|
||
j),
|
||
i))
|
||
return true;
|
||
}
|
||
QUIT;
|
||
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
|
||
if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)
|
||
|| TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
/* Helper function that temporarily disables FLAGS->PRINT_OFFSETS,
|
||
calls 'c_print_type_1', and then reenables FLAGS->PRINT_OFFSETS if
|
||
applicable. */
|
||
|
||
static void
|
||
c_print_type_no_offsets (struct type *type,
|
||
const char *varstring,
|
||
struct ui_file *stream,
|
||
int show, int level,
|
||
enum language language,
|
||
struct type_print_options *flags,
|
||
struct print_offset_data *podata)
|
||
{
|
||
unsigned int old_po = flags->print_offsets;
|
||
|
||
/* Temporarily disable print_offsets, because it would mess with
|
||
indentation. */
|
||
flags->print_offsets = 0;
|
||
c_print_type_1 (type, varstring, stream, show, level, language, flags,
|
||
podata);
|
||
flags->print_offsets = old_po;
|
||
}
|
||
|
||
/* Helper for 'c_type_print_base' that handles structs and unions.
|
||
For a description of the arguments, see 'c_type_print_base'. */
|
||
|
||
static void
|
||
c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
|
||
int show, int level,
|
||
enum language language,
|
||
const struct type_print_options *flags,
|
||
struct print_offset_data *podata)
|
||
{
|
||
struct type_print_options local_flags = *flags;
|
||
local_flags.local_typedefs = NULL;
|
||
|
||
std::unique_ptr<typedef_hash_table> hash_holder;
|
||
if (!flags->raw)
|
||
{
|
||
if (flags->local_typedefs)
|
||
local_flags.local_typedefs
|
||
= new typedef_hash_table (*flags->local_typedefs);
|
||
else
|
||
local_flags.local_typedefs = new typedef_hash_table ();
|
||
|
||
hash_holder.reset (local_flags.local_typedefs);
|
||
}
|
||
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
if (TYPE_CODE (type) == TYPE_CODE_UNION)
|
||
fprintf_filtered (stream, "union ");
|
||
else if (TYPE_DECLARED_CLASS (type))
|
||
fprintf_filtered (stream, "class ");
|
||
else
|
||
fprintf_filtered (stream, "struct ");
|
||
|
||
/* Print the tag if it exists. The HP aCC compiler emits a
|
||
spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
|
||
enum}" tag for unnamed struct/union/enum's, which we don't
|
||
want to print. */
|
||
if (TYPE_NAME (type) != NULL
|
||
&& !startswith (TYPE_NAME (type), "{unnamed"))
|
||
{
|
||
/* When printing the tag name, we are still effectively
|
||
printing in the outer context, hence the use of FLAGS
|
||
here. */
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
if (show > 0)
|
||
fputs_filtered (" ", stream);
|
||
}
|
||
|
||
if (show < 0)
|
||
{
|
||
/* If we just printed a tag name, no need to print anything
|
||
else. */
|
||
if (TYPE_NAME (type) == NULL)
|
||
fprintf_filtered (stream, "{...}");
|
||
}
|
||
else if (show > 0 || TYPE_NAME (type) == NULL)
|
||
{
|
||
struct type *basetype;
|
||
int vptr_fieldno;
|
||
|
||
c_type_print_template_args (&local_flags, type, stream);
|
||
|
||
/* Add in template parameters when printing derivation info. */
|
||
if (local_flags.local_typedefs != NULL)
|
||
local_flags.local_typedefs->add_template_parameters (type);
|
||
cp_type_print_derivation_info (stream, type, &local_flags);
|
||
|
||
/* This holds just the global typedefs and the template
|
||
parameters. */
|
||
struct type_print_options semi_local_flags = *flags;
|
||
semi_local_flags.local_typedefs = NULL;
|
||
|
||
std::unique_ptr<typedef_hash_table> semi_holder;
|
||
if (local_flags.local_typedefs != nullptr)
|
||
{
|
||
semi_local_flags.local_typedefs
|
||
= new typedef_hash_table (*local_flags.local_typedefs);
|
||
semi_holder.reset (semi_local_flags.local_typedefs);
|
||
|
||
/* Now add in the local typedefs. */
|
||
local_flags.local_typedefs->recursively_update (type);
|
||
}
|
||
|
||
fprintf_filtered (stream, "{\n");
|
||
|
||
if (TYPE_NFIELDS (type) == 0 && TYPE_NFN_FIELDS (type) == 0
|
||
&& TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
|
||
{
|
||
if (TYPE_STUB (type))
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<incomplete type>\n"));
|
||
else
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<no data fields>\n"));
|
||
}
|
||
|
||
/* Start off with no specific section type, so we can print
|
||
one for the first field we find, and use that section type
|
||
thereafter until we find another type. */
|
||
|
||
enum access_specifier section_type = s_none;
|
||
|
||
/* For a class, if all members are private, there's no need
|
||
for a "private:" label; similarly, for a struct or union
|
||
masquerading as a class, if all members are public, there's
|
||
no need for a "public:" label. */
|
||
bool need_access_label = need_access_label_p (type);
|
||
|
||
/* If there is a base class for this type,
|
||
do not print the field that it occupies. */
|
||
|
||
int len = TYPE_NFIELDS (type);
|
||
vptr_fieldno = get_vptr_fieldno (type, &basetype);
|
||
|
||
struct print_offset_data local_podata;
|
||
|
||
for (int i = TYPE_N_BASECLASSES (type); i < len; i++)
|
||
{
|
||
QUIT;
|
||
|
||
/* If we have a virtual table pointer, omit it. Even if
|
||
virtual table pointers are not specifically marked in
|
||
the debug info, they should be artificial. */
|
||
if ((i == vptr_fieldno && type == basetype)
|
||
|| TYPE_FIELD_ARTIFICIAL (type, i))
|
||
continue;
|
||
|
||
if (need_access_label)
|
||
{
|
||
section_type = output_access_specifier
|
||
(stream, section_type, level,
|
||
TYPE_FIELD_PROTECTED (type, i),
|
||
TYPE_FIELD_PRIVATE (type, i), flags);
|
||
}
|
||
|
||
bool is_static = field_is_static (&TYPE_FIELD (type, i));
|
||
|
||
if (flags->print_offsets)
|
||
podata->update (type, i, stream);
|
||
|
||
print_spaces_filtered (level + 4, stream);
|
||
if (is_static)
|
||
fprintf_filtered (stream, "static ");
|
||
|
||
int newshow = show - 1;
|
||
|
||
if (!is_static && flags->print_offsets
|
||
&& (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_STRUCT
|
||
|| TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_UNION))
|
||
{
|
||
/* If we're printing offsets and this field's type is
|
||
either a struct or an union, then we're interested in
|
||
expanding it. */
|
||
++newshow;
|
||
|
||
/* Make sure we carry our offset when we expand the
|
||
struct/union. */
|
||
local_podata.offset_bitpos
|
||
= podata->offset_bitpos + TYPE_FIELD_BITPOS (type, i);
|
||
/* We're entering a struct/union. Right now,
|
||
PODATA->END_BITPOS points right *after* the
|
||
struct/union. However, when printing the first field
|
||
of this inner struct/union, the end_bitpos we're
|
||
expecting is exactly at the beginning of the
|
||
struct/union. Therefore, we subtract the length of
|
||
the whole struct/union. */
|
||
local_podata.end_bitpos
|
||
= podata->end_bitpos
|
||
- TYPE_LENGTH (TYPE_FIELD_TYPE (type, i)) * TARGET_CHAR_BIT;
|
||
}
|
||
|
||
c_print_type_1 (TYPE_FIELD_TYPE (type, i),
|
||
TYPE_FIELD_NAME (type, i),
|
||
stream, newshow, level + 4,
|
||
language, &local_flags, &local_podata);
|
||
|
||
if (!is_static && TYPE_FIELD_PACKED (type, i))
|
||
{
|
||
/* It is a bitfield. This code does not attempt
|
||
to look at the bitpos and reconstruct filler,
|
||
unnamed fields. This would lead to misleading
|
||
results if the compiler does not put out fields
|
||
for such things (I don't know what it does). */
|
||
fprintf_filtered (stream, " : %d",
|
||
TYPE_FIELD_BITSIZE (type, i));
|
||
}
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
|
||
/* If there are both fields and methods, put a blank line
|
||
between them. Make sure to count only method that we
|
||
will display; artificial methods will be hidden. */
|
||
len = TYPE_NFN_FIELDS (type);
|
||
if (!flags->print_methods)
|
||
len = 0;
|
||
int real_len = 0;
|
||
for (int i = 0; i < len; i++)
|
||
{
|
||
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
|
||
int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
|
||
int j;
|
||
|
||
for (j = 0; j < len2; j++)
|
||
if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
|
||
real_len++;
|
||
}
|
||
if (real_len > 0 && section_type != s_none)
|
||
fprintf_filtered (stream, "\n");
|
||
|
||
/* C++: print out the methods. */
|
||
for (int i = 0; i < len; i++)
|
||
{
|
||
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
|
||
int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
|
||
const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
|
||
const char *name = TYPE_NAME (type);
|
||
int is_constructor = name && strcmp (method_name,
|
||
name) == 0;
|
||
|
||
for (j = 0; j < len2; j++)
|
||
{
|
||
const char *mangled_name;
|
||
gdb::unique_xmalloc_ptr<char> mangled_name_holder;
|
||
char *demangled_name;
|
||
const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
|
||
int is_full_physname_constructor =
|
||
TYPE_FN_FIELD_CONSTRUCTOR (f, j)
|
||
|| is_constructor_name (physname)
|
||
|| is_destructor_name (physname)
|
||
|| method_name[0] == '~';
|
||
|
||
/* Do not print out artificial methods. */
|
||
if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
|
||
continue;
|
||
|
||
QUIT;
|
||
section_type = output_access_specifier
|
||
(stream, section_type, level,
|
||
TYPE_FN_FIELD_PROTECTED (f, j),
|
||
TYPE_FN_FIELD_PRIVATE (f, j), flags);
|
||
|
||
print_spaces_filtered_with_print_options (level + 4, stream,
|
||
flags);
|
||
if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
|
||
fprintf_filtered (stream, "virtual ");
|
||
else if (TYPE_FN_FIELD_STATIC_P (f, j))
|
||
fprintf_filtered (stream, "static ");
|
||
if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
|
||
{
|
||
/* Keep GDB from crashing here. */
|
||
fprintf_filtered (stream,
|
||
_("<undefined type> %s;\n"),
|
||
TYPE_FN_FIELD_PHYSNAME (f, j));
|
||
break;
|
||
}
|
||
else if (!is_constructor /* Constructors don't
|
||
have declared
|
||
types. */
|
||
&& !is_full_physname_constructor /* " " */
|
||
&& !is_type_conversion_operator (type, i, j))
|
||
{
|
||
c_print_type_no_offsets
|
||
(TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
|
||
"", stream, -1, 0, language, &local_flags, podata);
|
||
|
||
fputs_filtered (" ", stream);
|
||
}
|
||
if (TYPE_FN_FIELD_STUB (f, j))
|
||
{
|
||
/* Build something we can demangle. */
|
||
mangled_name_holder.reset (gdb_mangle_name (type, i, j));
|
||
mangled_name = mangled_name_holder.get ();
|
||
}
|
||
else
|
||
mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
|
||
|
||
demangled_name =
|
||
gdb_demangle (mangled_name,
|
||
DMGL_ANSI | DMGL_PARAMS);
|
||
if (demangled_name == NULL)
|
||
{
|
||
/* In some cases (for instance with the HP
|
||
demangling), if a function has more than 10
|
||
arguments, the demangling will fail.
|
||
Let's try to reconstruct the function
|
||
signature from the symbol information. */
|
||
if (!TYPE_FN_FIELD_STUB (f, j))
|
||
{
|
||
int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
|
||
struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
|
||
|
||
cp_type_print_method_args (mtype,
|
||
"",
|
||
method_name,
|
||
staticp,
|
||
stream, language,
|
||
&local_flags);
|
||
}
|
||
else
|
||
fprintf_filtered (stream,
|
||
_("<badly mangled name '%s'>"),
|
||
mangled_name);
|
||
}
|
||
else
|
||
{
|
||
char *p;
|
||
char *demangled_no_class
|
||
= remove_qualifiers (demangled_name);
|
||
|
||
/* Get rid of the `static' appended by the
|
||
demangler. */
|
||
p = strstr (demangled_no_class, " static");
|
||
if (p != NULL)
|
||
{
|
||
int length = p - demangled_no_class;
|
||
char *demangled_no_static;
|
||
|
||
demangled_no_static
|
||
= (char *) xmalloc (length + 1);
|
||
strncpy (demangled_no_static,
|
||
demangled_no_class, length);
|
||
*(demangled_no_static + length) = '\0';
|
||
fputs_filtered (demangled_no_static, stream);
|
||
xfree (demangled_no_static);
|
||
}
|
||
else
|
||
fputs_filtered (demangled_no_class, stream);
|
||
xfree (demangled_name);
|
||
}
|
||
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
}
|
||
|
||
/* Print out nested types. */
|
||
if (TYPE_NESTED_TYPES_COUNT (type) != 0
|
||
&& semi_local_flags.print_nested_type_limit != 0)
|
||
{
|
||
if (semi_local_flags.print_nested_type_limit > 0)
|
||
--semi_local_flags.print_nested_type_limit;
|
||
|
||
if (TYPE_NFIELDS (type) != 0 || TYPE_NFN_FIELDS (type) != 0)
|
||
fprintf_filtered (stream, "\n");
|
||
|
||
for (int i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i)
|
||
{
|
||
print_spaces_filtered_with_print_options (level + 4, stream,
|
||
flags);
|
||
c_print_type_no_offsets (TYPE_NESTED_TYPES_FIELD_TYPE (type, i),
|
||
"", stream, show, level + 4,
|
||
language, &semi_local_flags, podata);
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
}
|
||
|
||
/* Print typedefs defined in this class. */
|
||
|
||
if (TYPE_TYPEDEF_FIELD_COUNT (type) != 0 && flags->print_typedefs)
|
||
{
|
||
if (TYPE_NFIELDS (type) != 0 || TYPE_NFN_FIELDS (type) != 0
|
||
|| TYPE_NESTED_TYPES_COUNT (type) != 0)
|
||
fprintf_filtered (stream, "\n");
|
||
|
||
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); i++)
|
||
{
|
||
struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
|
||
|
||
/* Dereference the typedef declaration itself. */
|
||
gdb_assert (TYPE_CODE (target) == TYPE_CODE_TYPEDEF);
|
||
target = TYPE_TARGET_TYPE (target);
|
||
|
||
if (need_access_label)
|
||
{
|
||
section_type = output_access_specifier
|
||
(stream, section_type, level,
|
||
TYPE_TYPEDEF_FIELD_PROTECTED (type, i),
|
||
TYPE_TYPEDEF_FIELD_PRIVATE (type, i), flags);
|
||
}
|
||
print_spaces_filtered_with_print_options (level + 4, stream,
|
||
flags);
|
||
fprintf_filtered (stream, "typedef ");
|
||
|
||
/* We want to print typedefs with substitutions
|
||
from the template parameters or globally-known
|
||
typedefs but not local typedefs. */
|
||
c_print_type_no_offsets (target,
|
||
TYPE_TYPEDEF_FIELD_NAME (type, i),
|
||
stream, show - 1, level + 4,
|
||
language, &semi_local_flags, podata);
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
}
|
||
|
||
if (flags->print_offsets)
|
||
{
|
||
if (show > 0)
|
||
podata->finish (type, level, stream);
|
||
|
||
print_spaces_filtered (print_offset_data::indentation, stream);
|
||
if (level == 0)
|
||
print_spaces_filtered (2, stream);
|
||
}
|
||
|
||
fprintfi_filtered (level, stream, "}");
|
||
}
|
||
}
|
||
|
||
/* Print the name of the type (or the ultimate pointer target,
|
||
function value or array element), or the description of a structure
|
||
or union.
|
||
|
||
SHOW positive means print details about the type (e.g. enum
|
||
values), and print structure elements passing SHOW - 1 for show.
|
||
|
||
SHOW negative means just print the type name or struct tag if there
|
||
is one. If there is no name, print something sensible but concise
|
||
like "struct {...}".
|
||
|
||
SHOW zero means just print the type name or struct tag if there is
|
||
one. If there is no name, print something sensible but not as
|
||
concise like "struct {int x; int y;}".
|
||
|
||
LEVEL is the number of spaces to indent by.
|
||
We increase it for some recursive calls. */
|
||
|
||
static void
|
||
c_type_print_base_1 (struct type *type, struct ui_file *stream,
|
||
int show, int level,
|
||
enum language language,
|
||
const struct type_print_options *flags,
|
||
struct print_offset_data *podata)
|
||
{
|
||
int i;
|
||
int len;
|
||
|
||
QUIT;
|
||
|
||
if (type == NULL)
|
||
{
|
||
fputs_filtered (_("<type unknown>"), stream);
|
||
return;
|
||
}
|
||
|
||
/* When SHOW is zero or less, and there is a valid type name, then
|
||
always just print the type name directly from the type. */
|
||
|
||
if (show <= 0
|
||
&& TYPE_NAME (type) != NULL)
|
||
{
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
|
||
/* If we have "typedef struct foo {. . .} bar;" do we want to
|
||
print it as "struct foo" or as "bar"? Pick the latter for
|
||
C++, because C++ folk tend to expect things like "class5
|
||
*foo" rather than "struct class5 *foo". We rather
|
||
arbitrarily choose to make language_minimal work in a C-like
|
||
way. */
|
||
if (language == language_c || language == language_minimal)
|
||
{
|
||
if (TYPE_CODE (type) == TYPE_CODE_UNION)
|
||
fprintf_filtered (stream, "union ");
|
||
else if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
||
{
|
||
if (TYPE_DECLARED_CLASS (type))
|
||
fprintf_filtered (stream, "class ");
|
||
else
|
||
fprintf_filtered (stream, "struct ");
|
||
}
|
||
else if (TYPE_CODE (type) == TYPE_CODE_ENUM)
|
||
fprintf_filtered (stream, "enum ");
|
||
}
|
||
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
return;
|
||
}
|
||
|
||
type = check_typedef (type);
|
||
|
||
switch (TYPE_CODE (type))
|
||
{
|
||
case TYPE_CODE_TYPEDEF:
|
||
/* If we get here, the typedef doesn't have a name, and we
|
||
couldn't resolve TYPE_TARGET_TYPE. Not much we can do. */
|
||
gdb_assert (TYPE_NAME (type) == NULL);
|
||
gdb_assert (TYPE_TARGET_TYPE (type) == NULL);
|
||
fprintf_filtered (stream, _("<unnamed typedef>"));
|
||
break;
|
||
|
||
case TYPE_CODE_FUNC:
|
||
case TYPE_CODE_METHOD:
|
||
if (TYPE_TARGET_TYPE (type) == NULL)
|
||
type_print_unknown_return_type (stream);
|
||
else
|
||
c_type_print_base_1 (TYPE_TARGET_TYPE (type),
|
||
stream, show, level, language, flags, podata);
|
||
break;
|
||
case TYPE_CODE_ARRAY:
|
||
case TYPE_CODE_PTR:
|
||
case TYPE_CODE_MEMBERPTR:
|
||
case TYPE_CODE_REF:
|
||
case TYPE_CODE_RVALUE_REF:
|
||
case TYPE_CODE_METHODPTR:
|
||
c_type_print_base_1 (TYPE_TARGET_TYPE (type),
|
||
stream, show, level, language, flags, podata);
|
||
break;
|
||
|
||
case TYPE_CODE_STRUCT:
|
||
case TYPE_CODE_UNION:
|
||
c_type_print_base_struct_union (type, stream, show, level,
|
||
language, flags, podata);
|
||
break;
|
||
|
||
case TYPE_CODE_ENUM:
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
fprintf_filtered (stream, "enum ");
|
||
if (TYPE_DECLARED_CLASS (type))
|
||
fprintf_filtered (stream, "class ");
|
||
/* Print the tag name if it exists.
|
||
The aCC compiler emits a spurious
|
||
"{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
|
||
tag for unnamed struct/union/enum's, which we don't
|
||
want to print. */
|
||
if (TYPE_NAME (type) != NULL
|
||
&& !startswith (TYPE_NAME (type), "{unnamed"))
|
||
{
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
if (show > 0)
|
||
fputs_filtered (" ", stream);
|
||
}
|
||
|
||
wrap_here (" ");
|
||
if (show < 0)
|
||
{
|
||
/* If we just printed a tag name, no need to print anything
|
||
else. */
|
||
if (TYPE_NAME (type) == NULL)
|
||
fprintf_filtered (stream, "{...}");
|
||
}
|
||
else if (show > 0 || TYPE_NAME (type) == NULL)
|
||
{
|
||
LONGEST lastval = 0;
|
||
|
||
/* We can't handle this case perfectly, as DWARF does not
|
||
tell us whether or not the underlying type was specified
|
||
in the source (and other debug formats don't provide this
|
||
at all). We choose to print the underlying type, if it
|
||
has a name, when in C++ on the theory that it's better to
|
||
print too much than too little; but conversely not to
|
||
print something egregiously outside the current
|
||
language's syntax. */
|
||
if (language == language_cplus && TYPE_TARGET_TYPE (type) != NULL)
|
||
{
|
||
struct type *underlying = check_typedef (TYPE_TARGET_TYPE (type));
|
||
|
||
if (TYPE_NAME (underlying) != NULL)
|
||
fprintf_filtered (stream, ": %s ", TYPE_NAME (underlying));
|
||
}
|
||
|
||
fprintf_filtered (stream, "{");
|
||
len = TYPE_NFIELDS (type);
|
||
for (i = 0; i < len; i++)
|
||
{
|
||
QUIT;
|
||
if (i)
|
||
fprintf_filtered (stream, ", ");
|
||
wrap_here (" ");
|
||
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
|
||
if (lastval != TYPE_FIELD_ENUMVAL (type, i))
|
||
{
|
||
fprintf_filtered (stream, " = %s",
|
||
plongest (TYPE_FIELD_ENUMVAL (type, i)));
|
||
lastval = TYPE_FIELD_ENUMVAL (type, i);
|
||
}
|
||
lastval++;
|
||
}
|
||
fprintf_filtered (stream, "}");
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_FLAGS:
|
||
{
|
||
struct type_print_options local_flags = *flags;
|
||
|
||
local_flags.local_typedefs = NULL;
|
||
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
fprintf_filtered (stream, "flag ");
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
if (show > 0)
|
||
{
|
||
fputs_filtered (" ", stream);
|
||
fprintf_filtered (stream, "{\n");
|
||
if (TYPE_NFIELDS (type) == 0)
|
||
{
|
||
if (TYPE_STUB (type))
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<incomplete type>\n"));
|
||
else
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<no data fields>\n"));
|
||
}
|
||
len = TYPE_NFIELDS (type);
|
||
for (i = 0; i < len; i++)
|
||
{
|
||
QUIT;
|
||
print_spaces_filtered (level + 4, stream);
|
||
/* We pass "show" here and not "show - 1" to get enum types
|
||
printed. There's no other way to see them. */
|
||
c_print_type_1 (TYPE_FIELD_TYPE (type, i),
|
||
TYPE_FIELD_NAME (type, i),
|
||
stream, show, level + 4,
|
||
language, &local_flags, podata);
|
||
fprintf_filtered (stream, " @%s",
|
||
plongest (TYPE_FIELD_BITPOS (type, i)));
|
||
if (TYPE_FIELD_BITSIZE (type, i) > 1)
|
||
{
|
||
fprintf_filtered (stream, "-%s",
|
||
plongest (TYPE_FIELD_BITPOS (type, i)
|
||
+ TYPE_FIELD_BITSIZE (type, i)
|
||
- 1));
|
||
}
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
fprintfi_filtered (level, stream, "}");
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_VOID:
|
||
fprintf_filtered (stream, "void");
|
||
break;
|
||
|
||
case TYPE_CODE_UNDEF:
|
||
fprintf_filtered (stream, _("struct <unknown>"));
|
||
break;
|
||
|
||
case TYPE_CODE_ERROR:
|
||
fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
|
||
break;
|
||
|
||
case TYPE_CODE_RANGE:
|
||
/* This should not occur. */
|
||
fprintf_filtered (stream, _("<range type>"));
|
||
break;
|
||
|
||
case TYPE_CODE_NAMESPACE:
|
||
fputs_filtered ("namespace ", stream);
|
||
fputs_filtered (TYPE_NAME (type), stream);
|
||
break;
|
||
|
||
default:
|
||
/* Handle types not explicitly handled by the other cases, such
|
||
as fundamental types. For these, just print whatever the
|
||
type name is, as recorded in the type itself. If there is no
|
||
type name, then complain. */
|
||
if (TYPE_NAME (type) != NULL)
|
||
{
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
}
|
||
else
|
||
{
|
||
/* At least for dump_symtab, it is important that this not
|
||
be an error (). */
|
||
fprintf_filtered (stream, _("<invalid type code %d>"),
|
||
TYPE_CODE (type));
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* See c_type_print_base_1. */
|
||
|
||
void
|
||
c_type_print_base (struct type *type, struct ui_file *stream,
|
||
int show, int level,
|
||
const struct type_print_options *flags)
|
||
{
|
||
struct print_offset_data podata;
|
||
|
||
c_type_print_base_1 (type, stream, show, level,
|
||
current_language->la_language, flags, &podata);
|
||
}
|