Change Lua ref types Debug print from `Ref{index}` to `Ref{pointer}`

The index is always uniq per instance, but pointer can exactly tell when
several values reference to the same Lua internal value.

1 files changed, 1 insertions, 2 deletions

diff --git a/src/string.rs b/src/string.rs
index 9a75cf5..d35f618 100644
--- a/src/string.rs
+++ b/src/string.rs
@@ -139,8 +139,7 @@ impl<'lua> String<'lua> {
     /// Typically this function is used only for hashing and debug information.
     #[inline]
     pub fn to_pointer(&self) -> *const c_void {
-        let ref_thread = self.0.lua.ref_thread();
-        unsafe { ffi::lua_topointer(ref_thread, self.0.index) }
+        self.0.to_pointer()
     }
 
     /// Convert this handle to owned version.