diff options
Diffstat (limited to 'third_party/rust/uniffi_bindgen/src/bindings/swift/templates/DurationHelper.swift')
-rw-r--r-- | third_party/rust/uniffi_bindgen/src/bindings/swift/templates/DurationHelper.swift | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/DurationHelper.swift b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/DurationHelper.swift new file mode 100644 index 0000000000..c2aa49e9d1 --- /dev/null +++ b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/DurationHelper.swift @@ -0,0 +1,24 @@ +fileprivate struct FfiConverterDuration: FfiConverterRustBuffer { + typealias SwiftType = TimeInterval + + public static func read(from buf: inout (data: Data, offset: Data.Index)) throws -> TimeInterval { + let seconds: UInt64 = try readInt(&buf) + let nanoseconds: UInt32 = try readInt(&buf) + return Double(seconds) + (Double(nanoseconds) / 1.0e9) + } + + public static func write(_ value: TimeInterval, into buf: inout [UInt8]) { + if value.rounded(.down) > Double(Int64.max) { + fatalError("Duration overflow, exceeds max bounds supported by Uniffi") + } + + if value < 0 { + fatalError("Invalid duration, must be non-negative") + } + + let seconds = UInt64(value) + let nanoseconds = UInt32((value - Double(seconds)) * 1.0e9) + writeInt(&buf, seconds) + writeInt(&buf, nanoseconds) + } +} |