[GR-19220] Made rb_respond_to work with primitives (#1869).

PullRequest: truffleruby/1230

Author: eregon

CHANGELOG.md

@@ -53,6 +53,7 @@ Bug fixes:
 * Fixed `Kernel#clone` for `nil`, `true`, `false`, `Integer`, and `Symbol`.
 * Make top-level methods available in `Context#getBindings()` (#1838).
 * Made `Kernel#caller_locations` accept a range argument, and return `nil` when appropriate.
+* Made `rb_respond_to` work with primitives (#1869, @chrisseaton).
 
 Compatibility:
 

lib/truffle/truffle/cext.rb

@@ -947,6 +947,10 @@ def rb_funcall_with_block(recv, meth, args, block)
     recv.public_send(meth, *args, &block)
   end
 
+  def rb_respond_to(object, name)
+    object.respond_to?(name)
+  end
+
   def rb_funcallv_public(recv, meth, args)
     recv.public_send(meth, *args)
   end

spec/ruby/optional/capi/object_spec.rb

@@ -110,6 +110,11 @@ def six(a, b, *c, &d); end
       @o.rb_respond_to(ObjectTest.new, :foo).should == true
       @o.rb_respond_to(ObjectTest.new, :bar).should == false
     end
+
+    it "can be used with primitives" do
+      @o.rb_respond_to(true, :object_id).should == true
+      @o.rb_respond_to(14, :succ).should == true
+    end
   end
 
   describe "rb_obj_respond_to" do

src/main/c/cext/ruby.c

@@ -1896,7 +1896,7 @@ char* ruby_strdup(const char *str) {
 // Calls
 
 int rb_respond_to(VALUE object, ID name) {
-  return polyglot_as_boolean(RUBY_INVOKE_NO_WRAP(object, "respond_to?", name));
+  return RUBY_CEXT_INVOKE("rb_respond_to", object, ID2SYM(name));
 }
 
 VALUE rb_funcallv(VALUE object, ID name, int args_count, const VALUE *args) {