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Support class constructor without parenthesis 

Class constructors can be declared without parenthesis after the `new` when
no arguments are required. Just like for normal function.

In a similar way the base class constructor can also be invoked without
parenthesis after the `new`.

```
class C extends D;
  function new;
    super.new;
  endfunction
endclass
```

Add support for this by making the parenthesis optional in the parser.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Lars-Peter Clausen 2022-02-26 12:53:51 +01:00
parent e3bc99dbf3
commit da5b9a4e5f
1 changed files with 5 additions and 5 deletions
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10
parse.y
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@ -891,14 +891,14 @@ class_item /* IEEE1800-2005: A.1.8 */
{ assert(current_function==0); { assert(current_function==0);
current_function = pform_push_constructor_scope(@3); current_function = pform_push_constructor_scope(@3);
} }
'(' tf_port_list_opt ')' ';' tf_port_list_parens_opt ';'
block_item_decls_opt block_item_decls_opt
statement_or_null_list_opt statement_or_null_list_opt
K_endfunction endnew_opt K_endfunction endnew_opt
{ current_function->set_ports($6); { current_function->set_ports($5);
pform_set_constructor_return(current_function); pform_set_constructor_return(current_function);
pform_set_this_class(@3, current_function); pform_set_this_class(@3, current_function);
current_function_set_statement(@3, $10); current_function_set_statement(@3, $8);
pform_pop_scope(); pform_pop_scope();
current_function = 0; current_function = 0;
} }
@ -6656,8 +6656,8 @@ statement_item /* This is roughly statement_item in the LRM */
beginning of a constructor, but let the elaborator figure that beginning of a constructor, but let the elaborator figure that
out. */ out. */
| implicit_class_handle '.' K_new '(' expression_list_with_nuls ')' ';' | implicit_class_handle '.' K_new argument_list_parens_opt ';'
{ PChainConstructor*tmp = new PChainConstructor(*$5); { PChainConstructor*tmp = new PChainConstructor(*$4);
FILE_NAME(tmp, @3); FILE_NAME(tmp, @3);
if (peek_head_name(*$1) == THIS_TOKEN) { if (peek_head_name(*$1) == THIS_TOKEN) {
yyerror(@1, "error: this.new is invalid syntax. Did you mean super.new?"); yyerror(@1, "error: this.new is invalid syntax. Did you mean super.new?");