Prohibit assignment to numbered parameters.

It is stricter than CRuby but confusing anyway.
2026-06-08 16:11:16 +00:00 · 2019-12-26 19:27:14 +09:00
parent ff16331754
commit d15e56dab0
1 changed files with 8 additions and 0 deletions
@@ -1952,6 +1952,10 @@ lhs             : variable
                      backref_error(p, $1);
                      $$ = 0;
                    }
+                | tNUMPARAM
+                    {
+                      yyerror(p, "can't assign to numbered parameter");
+                    }
                ;

 cname           : tIDENTIFIER
@@ -3275,6 +3279,10 @@ var_lhs         : variable
                    {
                      assignable(p, $1);
                    }
+                | tNUMPARAM
+                    {
+                      yyerror(p, "can't assign to numbered parameter");
+                    }
                ;

 var_ref         : variable