[PATCHv4 2/3] gdb: rename 'enum range_type' to 'enum range_flag'

Andrew Burgess
2020-09-28T09:41:10Z

To avoid confusion with other parts of GDB relating to types and
ranges, rename this enum to make it clearer that it is a set of
individual flags rather than an enumeration of different types of
range.

There should be no user visible changes after this commit.

gdb/ChangeLog:

* expprint.c (print_subexp_standard): Change enum range_type to
range_flag and rename variables to match.
(dump_subexp_body_standard): Likewise.
* expression.h (enum range_type): Rename to...
(enum range_flag): ...this.
(range_types): Rename to...
(range_flags): ...this.
* f-lang.c (value_f90_subarray): Change enum range_type to
range_flag and rename variables to match.
* parse.c (operator_length_standard): Likewise.
* rust-exp.y (rust_parser::convert_ast_to_expression): Change enum
range_type to range_flag.
* rust-lang.c (rust_evaluate_funcall): Likewise.
(rust_range): Likewise.
(rust_compute_range): Likewise.
(rust_subscript): Likewise.
---
gdb/ChangeLog | 19 +++++++++++++++++++
gdb/expprint.c | 24 ++++++++++++------------
gdb/expression.h | 4 ++--
gdb/f-lang.c | 8 ++++----
gdb/parse.c | 8 ++++----
gdb/rust-exp.y | 2 +-
gdb/rust-lang.c | 8 ++++----
7 files changed, 46 insertions(+), 27 deletions(-)

diff --git a/gdb/expprint.c b/gdb/expprint.c
index bdb69a92f75..2dee2bb1932 100644
--- a/gdb/expprint.c
+++ b/gdb/expprint.c
@@ -579,19 +579,19 @@ print_subexp_standard (struct expression *exp, int *pos,

case OP_RANGE:
{
- enum range_type range_type;
+ enum range_flag range_flag;

- range_type = (enum range_type)
+ range_flag = (enum range_flag)
longest_to_int (exp->elts[pc + 1].longconst);
*pos += 2;

- if (range_type & RANGE_HIGH_BOUND_EXCLUSIVE)
+ if (range_flag & RANGE_HIGH_BOUND_EXCLUSIVE)
fputs_filtered ("EXCLUSIVE_", stream);
fputs_filtered ("RANGE(", stream);
- if (!(range_type & RANGE_LOW_BOUND_DEFAULT))
+ if (!(range_flag & RANGE_LOW_BOUND_DEFAULT))
print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
fputs_filtered ("..", stream);
- if (!(range_type & RANGE_HIGH_BOUND_DEFAULT))
+ if (!(range_flag & RANGE_HIGH_BOUND_DEFAULT))
print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
fputs_filtered (")", stream);
return;
@@ -1106,25 +1106,25 @@ dump_subexp_body_standard (struct expression *exp,
break;
case OP_RANGE:
{
- enum range_type range_type;
+ enum range_flag range_flag;

- range_type = (enum range_type)
+ range_flag = (enum range_flag)
longest_to_int (exp->elts[elt].longconst);
elt += 2;

- if (range_type & RANGE_HIGH_BOUND_EXCLUSIVE)
+ if (range_flag & RANGE_HIGH_BOUND_EXCLUSIVE)
fputs_filtered ("Exclusive", stream);
fputs_filtered ("Range '", stream);
- if (!(range_type & RANGE_LOW_BOUND_DEFAULT))
+ if (!(range_flag & RANGE_LOW_BOUND_DEFAULT))
fputs_filtered ("EXP", stream);
fputs_filtered ("..", stream);
- if (!(range_type & RANGE_HIGH_BOUND_DEFAULT))
+ if (!(range_flag & RANGE_HIGH_BOUND_DEFAULT))
fputs_filtered ("EXP", stream);
fputs_filtered ("'", stream);

- if (!(range_type & RANGE_LOW_BOUND_DEFAULT))
+ if (!(range_flag & RANGE_LOW_BOUND_DEFAULT))
elt = dump_subexp (exp, stream, elt);
- if (!(range_type & RANGE_HIGH_BOUND_DEFAULT))
+ if (!(range_flag & RANGE_HIGH_BOUND_DEFAULT))
elt = dump_subexp (exp, stream, elt);
}
break;
diff --git a/gdb/expression.h b/gdb/expression.h
index 6bd3fc0c3c5..fd483e5f277 100644
--- a/gdb/expression.h
+++ b/gdb/expression.h
@@ -185,7 +185,7 @@ extern void dump_prefix_expression (struct expression *, struct ui_file *);
or inclusive. So we have six sorts of subrange. This enumeration
type is to identify this. */

-enum range_type : unsigned
+enum range_flag : unsigned
{
/* This is a standard range. Both the lower and upper bounds are
defined, and the bounds are inclusive. */
@@ -201,6 +201,6 @@ enum range_type : unsigned
RANGE_HIGH_BOUND_EXCLUSIVE = 1 << 2,
};

-DEF_ENUM_FLAGS_TYPE (enum range_type, range_types);
+DEF_ENUM_FLAGS_TYPE (enum range_flag, range_flags);

#endif /* !defined (EXPRESSION_H) */
diff --git a/gdb/f-lang.c b/gdb/f-lang.c
index fcab973f874..37d05b27653 100644
--- a/gdb/f-lang.c
+++ b/gdb/f-lang.c
@@ -126,17 +126,17 @@ value_f90_subarray (struct value *array,
int pc = (*pos) + 1;
LONGEST low_bound, high_bound;
struct type *range = check_typedef (value_type (array)->index_type ());
- enum range_type range_type
- = (enum range_type) longest_to_int (exp->elts[pc].longconst);
+ enum range_flag range_flag
+ = (enum range_flag) longest_to_int (exp->elts[pc].longconst);

*pos += 3;

- if (range_type & RANGE_LOW_BOUND_DEFAULT)
+ if (range_flag & RANGE_LOW_BOUND_DEFAULT)
low_bound = range->bounds ()->low.const_val ();
else
low_bound = value_as_long (evaluate_subexp (nullptr, exp, pos, noside));

- if (range_type & RANGE_HIGH_BOUND_DEFAULT)
+ if (range_flag & RANGE_HIGH_BOUND_DEFAULT)
high_bound = range->bounds ()->high.const_val ();
else
high_bound = value_as_long (evaluate_subexp (nullptr, exp, pos, noside));
diff --git a/gdb/parse.c b/gdb/parse.c
index 6661fba81d7..4a15de8a499 100644
--- a/gdb/parse.c
+++ b/gdb/parse.c
@@ -774,7 +774,7 @@ operator_length_standard (const struct expression *expr, int endpos,
{
int oplen = 1;
int args = 0;
- enum range_type range_type;
+ enum range_flag range_flag;
int i;

if (endpos < 1)
@@ -918,15 +918,15 @@ operator_length_standard (const struct expression *expr, int endpos,

case OP_RANGE:
oplen = 3;
- range_type = (enum range_type)
+ range_flag = (enum range_flag)
longest_to_int (expr->elts[endpos - 2].longconst);

/* Assume the range has 2 arguments (low bound and high bound), then
reduce the argument count if any bounds are set to default. */
args = 2;
- if (range_type & RANGE_LOW_BOUND_DEFAULT)
+ if (range_flag & RANGE_LOW_BOUND_DEFAULT)
--args;
- if (range_type & RANGE_HIGH_BOUND_DEFAULT)
+ if (range_flag & RANGE_HIGH_BOUND_DEFAULT)
--args;

break;
diff --git a/gdb/rust-exp.y b/gdb/rust-exp.y
index ea9fbdc25fb..802ccc0a7f6 100644
--- a/gdb/rust-exp.y
+++ b/gdb/rust-exp.y
@@ -2492,7 +2492,7 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,

case OP_RANGE:
{
- enum range_type kind = (RANGE_HIGH_BOUND_DEFAULT
+ enum range_flag kind = (RANGE_HIGH_BOUND_DEFAULT
| RANGE_LOW_BOUND_DEFAULT);

if (operation->left.op != NULL)
diff --git a/gdb/rust-lang.c b/gdb/rust-lang.c
index 820ebb92c43..86e7289c5e6 100644
--- a/gdb/rust-lang.c
+++ b/gdb/rust-lang.c
@@ -1065,7 +1065,6 @@ rust_evaluate_funcall (struct expression *exp, int *pos, enum noside noside)
static struct value *
rust_range (struct expression *exp, int *pos, enum noside noside)
{
- enum range_type kind;
struct value *low = NULL, *high = NULL;
struct value *addrval, *result;
CORE_ADDR addr;
@@ -1074,7 +1073,8 @@ rust_range (struct expression *exp, int *pos, enum noside noside)
struct type *temp_type;
const char *name;

- kind = (enum range_type) longest_to_int (exp->elts[*pos + 1].longconst);
+ auto kind
+ = (enum range_flag) longest_to_int (exp->elts[*pos + 1].longconst);
*pos += 3;

if (!(kind & RANGE_LOW_BOUND_DEFAULT))
@@ -1164,7 +1164,7 @@ rust_range (struct expression *exp, int *pos, enum noside noside)
static void
rust_compute_range (struct type *type, struct value *range,
LONGEST *low, LONGEST *high,
- range_types *kind)
+ range_flags *kind)
{
int i;

@@ -1204,7 +1204,7 @@ rust_subscript (struct expression *exp, int *pos, enum noside noside,
struct type *rhstype;
LONGEST low, high_bound;
/* Initialized to appease the compiler. */
- range_types kind = RANGE_LOW_BOUND_DEFAULT | RANGE_HIGH_BOUND_DEFAULT;
+ range_flags kind = RANGE_LOW_BOUND_DEFAULT | RANGE_HIGH_BOUND_DEFAULT;
LONGEST high = 0;
int want_slice = 0;

--
2.25.4