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Accept type-identifier tokens in named binding selectors 

A named binding selector such as `.T(expr)` names an existing formal port,
parameter, task or function argument, or constructor argument. It is not a
declaration of a new identifier. If a visible typedef named `T` exists at the
use site the lexer returns `TYPE_IDENTIFIER`, which made the parser reject the
binding selector.

Modport simple port aliases use the same grammar, but are slightly different:
the selector is the modport-visible port name and can shadow a visible typedef
name in the interface scope.

Use `identifier_name` for the selector name in `named_expression` and
`named_expression_opt`. This covers named parameter overrides, named task and
function arguments, named constructor arguments, and modport simple port
aliases. Also use `identifier_name` in the named module port connection rules,
including implicit named port connections and error recovery.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Lars-Peter Clausen 2026-07-08 21:27:04 -07:00
parent e02a0bc2ec
commit 6844ed4194
1 changed files with 4 additions and 4 deletions
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8
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@ -6089,7 +6089,7 @@ parameter_value_opt
;
named_expression
: '.' IDENTIFIER '(' expression ')'
: '.' identifier_name '(' expression ')'
{ named_pexpr_t*tmp = new named_pexpr_t;
FILE_NAME(tmp, @$);
tmp->name = lex_strings.make($2);
@ -6100,7 +6100,7 @@ named_expression
named_expression_opt
: named_expression
| '.' IDENTIFIER '(' ')'
| '.' identifier_name '(' ')'
{ named_pexpr_t*tmp = new named_pexpr_t;
FILE_NAME(tmp, @$);
tmp->name = lex_strings.make($2);
@ -6190,7 +6190,7 @@ port_name
{ delete $1;
$$ = $2;
}
| attribute_list_opt '.' IDENTIFIER '(' error ')'
| attribute_list_opt '.' identifier_name '(' error ')'
{ yyerror(@3, "error: Invalid port connection expression.");
named_pexpr_t*tmp = new named_pexpr_t;
FILE_NAME(tmp, @$);
@ -6200,7 +6200,7 @@ port_name
delete $1;
$$ = tmp;
}
| attribute_list_opt '.' IDENTIFIER
| attribute_list_opt '.' identifier_name
{ pform_requires_sv(@3, "Implicit named port connections");
named_pexpr_t*tmp = new named_pexpr_t;
FILE_NAME(tmp, @$);