1 files changed, 12 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/Float64Helper.swift b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/Float64Helper.swift
new file mode 100644
index 0000000000..74421c045c
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/Float64Helper.swift
@@ -0,0 +1,12 @@
+fileprivate struct FfiConverterDouble: FfiConverterPrimitive {
+    typealias FfiType = Double
+    typealias SwiftType = Double
+
+    public static func read(from buf: inout (data: Data, offset: Data.Index)) throws -> Double {
+        return try lift(readDouble(&buf))
+    }
+
+    public static func write(_ value: Double, into buf: inout [UInt8]) {
+        writeDouble(&buf, lower(value))
+    }
+}