perf(serde_v8/de): implement SeqAccess size_hint (denoland#9975)

zenozeng · Apr 3, 2021 · 105c0ee · 105c0ee
1 parent 8257f51
commit 105c0ee
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/serde_v8/src/de.rs b/serde_v8/src/de.rs
@@ -534,6 +534,10 @@ impl<'de> de::SeqAccess<'de> for SeqAccess<'_, '_, '_> {
  Ok(None)
  }
  }
+
+ fn size_hint(&self) -> Option<usize> {
+ Some((self.len - self.pos) as usize)
+ }
 }
 
 struct EnumAccess<'a, 'b, 's> {