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Add common parser rule for (scoped) type identifier 

There are multiple places in the grammar where either a type identifier or
scoped type identifier is accepted.

Factor this into a common parser rule. This removes some duplicated code.
But it will also be required to avoid reduce-reduce conflicts for future
grammar extensions, e.g. to support type parameters.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Lars-Peter Clausen 2022-02-06 18:23:50 +01:00
parent bc0fc4ab89
commit 4bebcad6fd
1 changed files with 16 additions and 23 deletions
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39
parse.y
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@ -644,6 +644,7 @@ static void current_function_set_statement(const YYLTYPE&loc, std::vector<Statem
%type <data_type> data_type data_type_or_implicit data_type_or_implicit_or_void
%type <data_type> simple_type_or_string let_formal_type
%type <data_type> packed_array_data_type
%type <data_type> ps_type_identifier
%type <class_type> class_identifier
%type <struct_member> struct_union_member
%type <struct_members> struct_union_member_list
@ -1178,17 +1179,8 @@ data_declaration /* IEEE1800-2005: A.2.1.3 */
| attribute_list_opt package_import_declaration
;
/* Data types that can have packed dimensions directly attached to it */
packed_array_data_type /* IEEE1800-2005: A.2.2.1 */
: enum_data_type
{ $$ = $1; }
| struct_data_type
{ if (!$1->packed_flag) {
yyerror(@1, "sorry: Unpacked structs not supported.");
}
$$ = $1;
}
| TYPE_IDENTIFIER
ps_type_identifier /* IEEE1800-2017: A.9.3 */
: TYPE_IDENTIFIER
{ pform_set_type_referenced(@1, $1.text);
delete[]$1.text;
$$ = $1.type;
@ -1200,6 +1192,18 @@ packed_array_data_type /* IEEE1800-2005: A.2.2.1 */
$$ = $4.type;
delete[]$4.text;
}
/* Data types that can have packed dimensions directly attached to it */
packed_array_data_type /* IEEE1800-2005: A.2.2.1 */
: enum_data_type
{ $$ = $1; }
| struct_data_type
{ if (!$1->packed_flag) {
yyerror(@1, "sorry: Unpacked structs not supported.");
}
$$ = $1;
}
| ps_type_identifier
;
data_type /* IEEE1800-2005: A.2.2.1 */
@ -2243,23 +2247,12 @@ simple_type_or_string /* IEEE1800-2005: A.2.2.1 */
tmp->reg_flag = !gn_system_verilog();
$$ = tmp;
}
| TYPE_IDENTIFIER
{ pform_set_type_referenced(@1, $1.text);
$$ = $1.type;
delete[]$1.text;
}
| PACKAGE_IDENTIFIER K_SCOPE_RES
{ lex_in_package_scope($1); }
TYPE_IDENTIFIER
{ lex_in_package_scope(0);
$$ = $4.type;
delete[]$4.text;
}
| K_string
{ string_type_t*tmp = new string_type_t;
FILE_NAME(tmp, @1);
$$ = tmp;
}
| ps_type_identifier
;
statement /* IEEE1800-2005: A.6.4 */