Convert CfpPtr to use the same style of opaque struct we use everywhere else (including for EcPtr) (ruby#189)

noahgibbs · web-flow · commit b84a3d12f61c · 2022-02-24T10:42:33.000-05:00
diff --git a/yjit/src/cruby.rs b/yjit/src/cruby.rs
@@ -282,10 +282,15 @@ pub struct rb_callable_method_entry_t {
     core::marker::PhantomData<(*mut u8, core::marker::PhantomPinned)>,
 }
 
-/// Pointer to a control frame pointer (CFP)
-#[derive(Copy, Clone, PartialEq, Eq, Debug)]
 #[repr(C)]
-pub struct CfpPtr(pub usize);
+pub struct rb_control_frame_struct {
+    _data: [u8; 0],
+    _marker:
+    core::marker::PhantomData<(*mut u8, core::marker::PhantomPinned)>,
+}
+
+/// Pointer to a control frame pointer (CFP)
+pub type CfpPtr = *mut rb_control_frame_struct;
 
 impl VALUE {
     // Return whether the value is truthy or falsy in Ruby -- only nil and false are falsy.
