Declare rb_io_mode() and rb_io_path() and add specs

* Fixes #3350

Author: eregon

lib/cext/include/ruby/io.h

@@ -724,6 +724,12 @@ void rb_io_set_nonblock(rb_io_t *fptr);
  */
 int rb_io_descriptor(VALUE io);
 
+#ifdef TRUFFLERUBY
+// These functions come from 3.3 but truffleruby already implements them
+VALUE rb_io_path(VALUE io);
+int rb_io_mode(VALUE io);
+#endif
+
 /**
  * This function  breaks down the  option hash that `IO#initialize`  takes into
  * components.   This is  an implementation  detail of  rb_io_extract_modeenc()

lib/cext/include/truffleruby/truffleruby-abi-version.h

@@ -10,6 +10,6 @@
 // $RUBY_VERSION must be the same as TruffleRuby.LANGUAGE_VERSION.
 // $ABI_NUMBER starts at 1 and is incremented for every ABI-incompatible change.
 
-#define TRUFFLERUBY_ABI_VERSION "3.2.2.7"
+#define TRUFFLERUBY_ABI_VERSION "3.2.2.8"
 
 #endif

spec/ruby/optional/capi/ext/io_spec.c

@@ -339,6 +339,16 @@ VALUE io_spec_mode_sync_flag(VALUE self, VALUE io) {
   }
 }
 
+#if defined(RUBY_VERSION_IS_3_3) || defined(TRUFFLERUBY)
+static VALUE io_spec_rb_io_mode(VALUE self, VALUE io) {
+  return INT2FIX(rb_io_mode(io));
+}
+
+static VALUE io_spec_rb_io_path(VALUE self, VALUE io) {
+  return rb_io_path(io);
+}
+#endif
+
 void Init_io_spec(void) {
   VALUE cls = rb_define_class("CApiIOSpecs", rb_cObject);
   rb_define_method(cls, "GetOpenFile_fd", io_spec_GetOpenFile_fd, 1);
@@ -372,6 +382,10 @@ void Init_io_spec(void) {
   rb_define_method(cls, "rb_cloexec_open", io_spec_rb_cloexec_open, 3);
   rb_define_method(cls, "errno=", io_spec_errno_set, 1);
   rb_define_method(cls, "rb_io_mode_sync_flag", io_spec_mode_sync_flag, 1);
+#if defined(RUBY_VERSION_IS_3_3) || defined(TRUFFLERUBY)
+  rb_define_method(cls, "rb_io_mode", io_spec_rb_io_mode, 1);
+  rb_define_method(cls, "rb_io_path", io_spec_rb_io_path, 1);
+#endif
 }
 
 #ifdef __cplusplus

spec/ruby/optional/capi/io_spec.rb

@@ -440,10 +440,27 @@
       end
     end
   end
+
+  ruby_version_is "3.3" do
+    describe "rb_io_mode" do
+      it "returns the mode" do
+        (@o.rb_io_mode(@r_io) & 0b11).should == 0b01
+        (@o.rb_io_mode(@w_io) & 0b11).should == 0b10
+        (@o.rb_io_mode(@rw_io) & 0b11).should == 0b11
+      end
+    end
+
+    describe "rb_io_path" do
+      it "returns the IO#path" do
+        @o.rb_io_path(@r_io).should == @r_io.path
+        @o.rb_io_path(@rw_io).should == @rw_io.path
+        @o.rb_io_path(@rw_io).should == @name
+      end
+    end
+  end
 end
 
 describe "rb_fd_fix_cloexec" do
-
   before :each do
     @o = CApiIOSpecs.new
 

spec/truffleruby.next-specs

@@ -11,3 +11,5 @@ spec/ruby/core/nil/nil_spec.rb
 
 spec/ruby/core/warning/element_reference_spec.rb
 spec/ruby/core/warning/element_set_spec.rb
+
+spec/ruby/optional/capi/io_spec.rb