symbol_lookup3_warn.patch - Ruby master - Ruby Issue Tracking System

Feature #7854 » symbol_lookup3_warn.patch

     /*
      *  call-seq:
      *     Symbol[str]    => Symbol or nil
+     *
      *  Returns an extant symbol, which is the .to_sym of +str+, or
      *  nil if no such symbol exists.
+     *
      *     Symbol['Object']      #=> :Object
      *     Symbol['none such']   #=> nil
      */
     VALUE
     sym_lookup(VALUE cls, VALUE str)
+    {
         st_data_t id;
         if (SYMBOL_P(str)) {
     	rb_warn("Symbol passed to Symbol[]");
     	return str;
+        }
         if (id = rb_check_id(&str)) {
     	return ID2SYM(id);
+        }
         return Qnil;
+    }
     /*
      *  call-seq:
      *     sym == obj   -> true or false
+     *
      *  Equality---If <i>sym</i> and <i>obj</i> are exactly the same
-...
         rb_undef_alloc_func(rb_cSymbol);
         rb_undef_method(CLASS_OF(rb_cSymbol), "new");
         rb_define_singleton_method(rb_cSymbol, "all_symbols", rb_sym_all_symbols, 0); /* in parse.y */
         rb_define_singleton_method(rb_cSymbol, "[]", sym_lookup, 1);
         rb_define_method(rb_cSymbol, "==", sym_equal, 1);
         rb_define_method(rb_cSymbol, "===", sym_equal, 1);

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