Add missing assert.

cfallin · cfallin · commit 734cafa5b82e · 2025-10-06T13:02:32.000-07:00
diff --git a/crates/wasmtime/src/runtime/debug.rs b/crates/wasmtime/src/runtime/debug.rs
@@ -87,6 +87,7 @@ impl<'a> Iterator for StackView<'a> {
         if self.frames.is_empty() {
             let next_frame = self.iter.next()?;
             self.frames = VirtualFrame::decode(self.iter.store, next_frame, self.is_trapping_frame);
+            debug_assert!(!self.frames.is_empty());
             self.is_trapping_frame = false;
         }
 

Original file line number	Diff line number	Diff line change
`@@ -87,6 +87,7 @@ impl<'a> Iterator for StackView<'a> {`
`87`	`87`	`if self.frames.is_empty() {`
`88`	`88`	`let next_frame = self.iter.next()?;`
`89`	`89`	`self.frames = VirtualFrame::decode(self.iter.store, next_frame, self.is_trapping_frame);`
	`90`	`+ debug_assert!(!self.frames.is_empty());`
`90`	`91`	`self.is_trapping_frame = false;`
`91`	`92`	`}`
`92`	`93`