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parser: Consolidate named expression parsing 

There are a few different places in the parser that all parse named
expressions in the same way. Consolidate them into a single rule.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Lars-Peter Clausen 2022-02-16 14:34:02 +01:00
parent e7f66fe7ac
commit 4036c77416
1 changed files with 12 additions and 31 deletions
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43
parse.y
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@ -675,7 +675,7 @@ Module::port_t *module_declare_port(const YYLTYPE&loc, char *id,
%type <tf_ports> tf_port_declaration tf_port_item tf_port_item_list
%type <tf_ports> tf_port_list tf_port_list_opt tf_port_list_parens_opt
%type <named_pexpr> modport_simple_port port_name parameter_value_byname
%type <named_pexpr> named_expression named_expression_opt port_name
%type <named_pexprs> port_name_list parameter_value_byname_list
%type <exprs> port_conn_expression_list_with_nuls
@ -1975,7 +1975,7 @@ modport_item
modport_ports_list
: modport_ports_declaration
| modport_ports_list ',' modport_ports_declaration
| modport_ports_list ',' modport_simple_port
| modport_ports_list ',' named_expression
{ if (last_modport_port.type == MP_SIMPLE) {
pform_add_modport_port(@3, last_modport_port.direction,
$3->name, $3->parm);
@ -2009,7 +2009,7 @@ modport_ports_declaration
delete[] $3;
delete $1;
}
| attribute_list_opt port_direction modport_simple_port
| attribute_list_opt port_direction named_expression
{ last_modport_port.type = MP_SIMPLE;
last_modport_port.direction = $2;
pform_add_modport_port(@3, $2, $3->name, $3->parm);
@ -2038,16 +2038,6 @@ modport_ports_declaration
}
;
modport_simple_port
: '.' IDENTIFIER '(' expression ')'
{ named_pexpr_t*tmp = new named_pexpr_t;
tmp->name = lex_strings.make($2);
tmp->parm = $4;
delete[]$2;
$$ = tmp;
}
;
modport_tf_port
: K_task IDENTIFIER tf_port_list_parens_opt
| K_function data_type_or_implicit_or_void IDENTIFIER tf_port_list_parens_opt
@ -5550,7 +5540,7 @@ parameter_value_opt
{ $$ = 0; }
;
parameter_value_byname
named_expression
: '.' IDENTIFIER '(' expression ')'
{ named_pexpr_t*tmp = new named_pexpr_t;
tmp->name = lex_strings.make($2);
@ -5558,6 +5548,9 @@ parameter_value_byname
delete[]$2;
$$ = tmp;
}
named_expression_opt
: named_expression
| '.' IDENTIFIER '(' ')'
{ named_pexpr_t*tmp = new named_pexpr_t;
tmp->name = lex_strings.make($2);
@ -5568,13 +5561,13 @@ parameter_value_byname
;
parameter_value_byname_list
: parameter_value_byname
: named_expression_opt
{ std::list<named_pexpr_t>*tmp = new std::list<named_pexpr_t>;
tmp->push_back(*$1);
delete $1;
$$ = tmp;
}
| parameter_value_byname_list ',' parameter_value_byname
| parameter_value_byname_list ',' named_expression_opt
{ std::list<named_pexpr_t>*tmp = $1;
tmp->push_back(*$3);
delete $3;
@ -5643,13 +5636,9 @@ port_opt
looking for the ports of a module declaration. */
port_name
: attribute_list_opt '.' IDENTIFIER '(' expression ')'
{ named_pexpr_t*tmp = new named_pexpr_t;
tmp->name = lex_strings.make($3);
tmp->parm = $5;
delete[]$3;
delete $1;
$$ = tmp;
: attribute_list_opt named_expression_opt
{ delete $1;
$$ = $2;
}
| attribute_list_opt '.' IDENTIFIER '(' error ')'
{ yyerror(@3, "error: Invalid port connection expression.");
@ -5660,14 +5649,6 @@ port_name
delete $1;
$$ = tmp;
}
| attribute_list_opt '.' IDENTIFIER '(' ')'
{ named_pexpr_t*tmp = new named_pexpr_t;
tmp->name = lex_strings.make($3);
tmp->parm = 0;
delete[]$3;
delete $1;
$$ = tmp;
}
| attribute_list_opt '.' IDENTIFIER
{ pform_requires_sv(@3, "Implicit named port connections");
named_pexpr_t*tmp = new named_pexpr_t;