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Convert c_string_type to an enum flags type 

c_string_type contains values meant to be OR'ed together (even though
some bits are mutually exclusive), so it makes sense to make it an
enum flags type.

gdb/ChangeLog:
2015-11-17  Simon Marchi  <simon.marchi@ericsson.com>

	* c-exp.y (exp): Adjust, change enum c_string_type to
	c_string_type.
	(parse_string_or_char): Likewise.
	* c-lang.c (charset_for_string_type): Likewise.
	(classify_type): Likewise.
	(c_printchar): Likewise.
	(c_printstr): Likewise.
	(evaluate_subexp_c): Likewise.  And change cast to enum
	c_string_type_values.
	* c-lang.h: Include "common/enum_flags.h".
	(enum c_string_type): Rename to...
	(enum c_string_type_values): ...this.
	(c_string_type): Define new enum flags type.
This commit is contained in:
Simon Marchi 2015-11-17 13:31:29 +00:00 committed by Pedro Alves
parent 8d297bbf60
commit 0c801b9663
4 changed files with 31 additions and 13 deletions
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16
gdb/ChangeLog
View File

@ -1,3 +1,19 @@
2015-11-17 Simon Marchi <simon.marchi@ericsson.com>
* c-exp.y (exp): Adjust, change enum c_string_type to
c_string_type.
(parse_string_or_char): Likewise.
* c-lang.c (charset_for_string_type): Likewise.
(classify_type): Likewise.
(c_printchar): Likewise.
(c_printstr): Likewise.
(evaluate_subexp_c): Likewise. And change cast to enum
c_string_type_values.
* c-lang.h: Include "common/enum_flags.h".
(enum c_string_type): Rename to...
(enum c_string_type_values): ...this.
(c_string_type): Define new enum flags type.
2015-11-17 Pedro Alves <palves@redhat.com>
* btrace.h: Include common/enum-flags.h.

6
gdb/c-exp.y
View File

@ -864,7 +864,7 @@ string_exp:
exp : string_exp
{
int i;
enum c_string_type type = C_STRING;
c_string_type type = C_STRING;
for (i = 0; i < $1.len; ++i)
{
@ -878,7 +878,7 @@ exp : string_exp
if (type != C_STRING
&& type != $1.tokens[i].type)
error (_("Undefined string concatenation."));
type = (enum c_string_type) $1.tokens[i].type;
type = (enum c_string_type_values) $1.tokens[i].type;
break;
default:
/* internal error */
@ -2164,7 +2164,7 @@ parse_string_or_char (const char *tokptr, const char **outptr,
struct typed_stoken *value, int *host_chars)
{
int quote;
enum c_string_type type;
c_string_type type;
int is_objc = 0;
/* Build the gdb internal form of the input string in tempbuf. Note

17
gdb/c-lang.c
View File

@ -41,8 +41,7 @@ extern void _initialize_c_language (void);
character set name. */
static const char *
charset_for_string_type (enum c_string_type str_type,
struct gdbarch *gdbarch)
charset_for_string_type (c_string_type str_type, struct gdbarch *gdbarch)
{
switch (str_type & ~C_CHAR)
{
@ -72,11 +71,11 @@ charset_for_string_type (enum c_string_type str_type,
characters of this type in target BYTE_ORDER to the host character
set. */
static enum c_string_type
static c_string_type
classify_type (struct type *elttype, struct gdbarch *gdbarch,
const char **encoding)
{
enum c_string_type result;
c_string_type result;
/* We loop because ELTTYPE may be a typedef, and we want to
successively peel each typedef until we reach a type we
@ -155,7 +154,7 @@ c_emit_char (int c, struct type *type,
void
c_printchar (int c, struct type *type, struct ui_file *stream)
{
enum c_string_type str_type;
c_string_type str_type;
str_type = classify_type (type, get_type_arch (type), NULL);
switch (str_type)
@ -191,7 +190,7 @@ c_printstr (struct ui_file *stream, struct type *type,
const char *user_encoding, int force_ellipses,
const struct value_print_options *options)
{
enum c_string_type str_type;
c_string_type str_type;
const char *type_encoding;
const char *encoding;
@ -577,7 +576,7 @@ evaluate_subexp_c (struct type *expect_type, struct expression *exp,
struct obstack output;
struct cleanup *cleanup;
struct value *result;
enum c_string_type dest_type;
c_string_type dest_type;
const char *dest_charset;
int satisfy_expected = 0;
@ -589,8 +588,8 @@ evaluate_subexp_c (struct type *expect_type, struct expression *exp,
++*pos;
limit = *pos + BYTES_TO_EXP_ELEM (oplen + 1);
dest_type
= (enum c_string_type) longest_to_int (exp->elts[*pos].longconst);
dest_type = ((enum c_string_type_values)
longest_to_int (exp->elts[*pos].longconst));
switch (dest_type & ~C_CHAR)
{
case C_STRING:

5
gdb/c-lang.h
View File

@ -29,12 +29,13 @@ struct parser_state;
#include "value.h"
#include "macroexp.h"
#include "parser-defs.h"
#include "common/enum-flags.h"
/* The various kinds of C string and character. Note that these
values are chosen so that they may be or'd together in certain
ways. */
enum c_string_type
enum c_string_type_values
{
/* An ordinary string: "value". */
C_STRING = 0,
@ -56,6 +57,8 @@ enum c_string_type
C_CHAR_32 = 7
};
DEF_ENUM_FLAGS_TYPE (enum c_string_type_values, c_string_type);
/* Defined in c-exp.y. */
extern int c_parse (struct parser_state *);