1 files changed, 12 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/UInt64Helper.swift b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/UInt64Helper.swift
new file mode 100644
index 0000000000..eb674a2c53
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/UInt64Helper.swift
@@ -0,0 +1,12 @@
+fileprivate struct FfiConverterUInt64: FfiConverterPrimitive {
+    typealias FfiType = UInt64
+    typealias SwiftType = UInt64
+
+    public static func read(from buf: inout (data: Data, offset: Data.Index)) throws -> UInt64 {
+        return try lift(readInt(&buf))
+    }
+
+    public static func write(_ value: SwiftType, into buf: inout [UInt8]) {
+        writeInt(&buf, lower(value))
+    }
+}