Small refinement to rb_eval_cmd_kw implementation.

Author: aardvark179

lib/truffle/truffle/cext.rb

@@ -1960,9 +1960,9 @@ def rb_gc_unregister_address(address)
   end
 
   def rb_eval_cmd_kw(cmd, args, kw_splat)
-    case cmd
-    when String
-      eval(cmd)
+    if (args.size > 0 && kw_splat != 0)
+      kwargs = args.pop
+      cmd.call(*args, **kwargs)
     else
       cmd.call(*args)
     end

src/main/c/cext/call.c

@@ -230,5 +230,9 @@ VALUE rb_exec_recursive(VALUE (*func) (VALUE, VALUE, int), VALUE obj, VALUE arg)
 }
 
 VALUE rb_eval_cmd_kw(VALUE cmd, VALUE args, int kw_splat) {
-  return RUBY_CEXT_INVOKE("rb_eval_cmd_kw", cmd, args, INT2FIX(kw_splat));
+  if (!RB_TYPE_P(cmd, T_STRING)) {
+    return RUBY_CEXT_INVOKE("rb_eval_cmd_kw", cmd, args, INT2NUM(kw_splat));
+  } else {
+    return RUBY_CEXT_INVOKE("rb_eval_string", cmd);
+  }
 }