1 files changed, 21 insertions, 0 deletions
diff --git a/third_party/rust/jsparagus-stencil/src/frame_slot.rs b/third_party/rust/jsparagus-stencil/src/frame_slot.rs
new file mode 100644
index 0000000000..84ae4e4c02
--- /dev/null
+++ b/third_party/rust/jsparagus-stencil/src/frame_slot.rs
@@ -0,0 +1,21 @@
+/// Slot in the stack frame.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Ord, PartialOrd)]
+pub struct FrameSlot {
+    slot: u32,
+}
+
+impl FrameSlot {
+    pub fn new(slot: u32) -> Self {
+        Self { slot }
+    }
+
+    pub fn next(&mut self) {
+        self.slot += 1;
+    }
+}
+
+impl From<FrameSlot> for u32 {
+    fn from(slot: FrameSlot) -> u32 {
+        slot.slot
+    }
+}