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-rw-r--r--core/extensions.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/core/extensions.rs b/core/extensions.rs
index 846770d1f..7b9ab5908 100644
--- a/core/extensions.rs
+++ b/core/extensions.rs
@@ -16,6 +16,9 @@ pub struct OpDecl {
pub enabled: bool,
pub is_async: bool,
pub is_unstable: bool,
+ /// V8 argument count. Used as an optimization
+ /// hint by `core.initalizeAsyncOps`.
+ pub argc: usize,
pub is_v8: bool,
pub fast_fn: Option<Box<dyn FastFunction>>,
}