Nomad changes

packages/swift/Sources/Kreuzberg/SwiftEmbeddingBackendBridge.swift

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+// Generated by alef. Do not edit by hand.
+// swift-format-ignore-file
+// This file contains generated FFI glue for trait bridge registration.
+
+import Foundation
+import RustBridge
+
+/// Protocol for outbound `EmbeddingBackend` implementations.
+/// Conform your Swift class or struct to this protocol to implement
+/// a Rust trait from the host side.
+public protocol SwiftEmbeddingBackendBridge: AnyObject {
+    func dimensions() -> Int
+    func embed(texts: [String]) throws -> [[Float]]
+}
+
+/// Internal adapter wrapping a `SwiftEmbeddingBackendBridge` conformer.
+/// Marshals Swift types and trait calls to/from the C boundary.
+/// Excluded/internal types are serialised to/from JSON strings.
+final class SwiftEmbeddingBackendAdapter {
+    private let bridge: any SwiftEmbeddingBackendBridge
+
+    init(bridge: any SwiftEmbeddingBackendBridge) {
+    self.bridge = bridge
+    }
+
+    func dimensionsCall() -> Int {
+        let result = self.bridge.dimensions()
+        return result
+    }
+
+    func embedCall(texts: [String]) throws -> String {
+        do {
+    let result = try self.bridge.embed(texts: texts)
+            return marshal_ok_result(try JSONEncoder().encode(result))
+    } catch {
+        return marshal_error_result(error)
+    }
+    }
+
+}
+
+// MARK: - Marshalling helpers
+
+private struct Empty: Codable {}
+
+private func marshal_ok_result<T: Encodable>(_ value: T) -> String {
+    let encoder = JSONEncoder()
+    if let data = try? encoder.encode(value),
+       let jsonString = String(data: data, encoding: .utf8) {
+        return "{\"ok\": \(jsonString)}"
+    }
+    return "{\"ok\": null}"
+}
+
+private func marshal_encode_excluded<T: Encodable>(_ value: T) throws -> Data {
+    let encoder = JSONEncoder()
+    return try encoder.encode(value)
+}
+
+private func marshal_error_result(_ error: any Error) -> String {
+    let errorString = String(describing: error)
+    let encoder = JSONEncoder()
+    if let data = try? encoder.encode(errorString),
+       let jsonString = String(data: data, encoding: .utf8) {
+        return "{\"err\": \(jsonString)}"
+    }
+    return "{\"err\": \"unknown error\"}"
+}