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Style field names in "print"

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This changes gdb to use the "variable" style when printing field
names.  I've added new tests for C and Rust, but not other languages.

I chose "variable" because that seemed most straightforward.  However,
another option would be to introduce a new "field" style.  Similarly,
this patch uses the variable style for enumerator constants -- but
again, a new style could be used if that's preferred.

gdb/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* valprint.c (generic_val_print_enum_1)
	(val_print_type_code_flags): Style member names.
	* rust-lang.c (val_print_struct, rust_print_enum)
	(rust_print_struct_def, rust_internal_print_type): Style member
	names.
	* p-valprint.c (pascal_object_print_value_fields): Style member
	names.  Only call fprintf_symbol_filtered for static members.
	* m2-typeprint.c (m2_record_fields, m2_enum): Style member names.
	* f-valprint.c (f_val_print): Style member names.
	* f-typeprint.c (f_type_print_base): Style member names.
	* cp-valprint.c (cp_print_value_fields): Style member names.  Only
	call fprintf_symbol_filtered for static members.
	(cp_print_class_member): Style member names.
	* c-typeprint.c (c_print_type_1, c_type_print_base_1): Style
	member names.
	* ada-valprint.c (ada_print_scalar): Style enum names.
	(ada_val_print_enum): Likewise.
	* ada-typeprint.c (print_enum_type): Style enum names.

gdb/testsuite/ChangeLog
2020-02-22  Tom Tromey  <tom@tromey.com>

	* gdb.rust/rust-style.rs: New file.
	* gdb.rust/rust-style.exp: New file.
	* gdb.base/style.exp: Test structure printing.
	* gdb.base/style.c (struct some_struct): New type.
	(enum etype): New type.
	(struct_value): New global.

Change-Id: I070e1293c6cc830c9ea916af8243410aa384e944
This commit is contained in:
Tom Tromey
2020-02-22 10:02:42 -07:00
parent 7b3c27152b
commit 3f0cbb04d0
16 changed files with 190 additions and 32 deletions
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17
gdb/valprint.c
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@ -625,7 +625,8 @@ generic_val_print_enum_1 (struct type *type, LONGEST val,
}
if (i < len)
{
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
fputs_styled (TYPE_FIELD_NAME (type, i), variable_name_style.style (),
stream);
}
else if (TYPE_FLAG_ENUM (type))
{
@ -655,7 +656,8 @@ generic_val_print_enum_1 (struct type *type, LONGEST val,
fputs_filtered (" | ", stream);
val &= ~TYPE_FIELD_ENUMVAL (type, i);
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
fputs_styled (TYPE_FIELD_NAME (type, i),
variable_name_style.style (), stream);
}
}
@ -1268,8 +1270,10 @@ val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
&& TYPE_FIELD_BITSIZE (type, field) == 1)
{
if (val & ((ULONGEST)1 << TYPE_FIELD_BITPOS (type, field)))
fprintf_filtered (stream, " %s",
TYPE_FIELD_NAME (type, field));
fprintf_filtered
(stream, " %ps",
styled_string (variable_name_style.style (),
TYPE_FIELD_NAME (type, field)));
}
else
{
@ -1279,8 +1283,9 @@ val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
if (field_len < sizeof (ULONGEST) * TARGET_CHAR_BIT)
field_val &= ((ULONGEST) 1 << field_len) - 1;
fprintf_filtered (stream, " %s=",
TYPE_FIELD_NAME (type, field));
fprintf_filtered (stream, " %ps=",
styled_string (variable_name_style.style (),
TYPE_FIELD_NAME (type, field)));
if (TYPE_CODE (field_type) == TYPE_CODE_ENUM)
generic_val_print_enum_1 (field_type, field_val, stream);
else