Make generated JSON coding key Sendable

protocol/languages/swift/Sources/ShopifyCheckoutProtocol/Generated/Models.swift

@@ -1643,7 +1643,7 @@
     public let credential: PaymentCredential?
     /// Display information for this payment instrument. Each payment instrument schema defines
     /// its specific display properties, as outlined by the payment handler.
     public let display: [String: JSONAny]?
     /// The unique identifier for the handler instance that produced this instrument. This
     /// corresponds to the 'id' field in the Payment Handler definition.
     public let handlerID: String
@@ -2048,7 +2048,7 @@
 // MARK: - CapabilityResponseSchema
 public struct CapabilityResponseSchema: Codable, Sendable {
     /// Entity-specific configuration. Structure defined by each entity's schema.
     public let config: [String: JSONAny]?
     /// Unique identifier for this entity instance. Used to disambiguate when multiple instances
     /// exist.
     public let id: String?
@@ -2154,7 +2154,7 @@
 // MARK: - PaymentHandlerResponseSchema
 public struct PaymentHandlerResponseSchema: Codable, Sendable {
     /// Entity-specific configuration. Structure defined by each entity's schema.
     public let config: [String: JSONAny]?
     /// Unique identifier for this entity instance. Used to disambiguate when multiple instances
     /// exist.
     public let id: String
@@ -2233,7 +2233,7 @@
 public struct PaymentHandlerResponseSchemaAvailableInstrument: Codable, Sendable {
     /// Constraints on this instrument type. Structure depends on instrument type and active
     /// capabilities.
     public let constraints: [String: JSONAny]?
     /// The instrument type identifier (e.g., 'card', 'gift_card'). References an instrument
     /// schema's type constant.
     public let type: String
@@ -3252,7 +3252,7 @@
 // MARK: - UCPOrderResponseSchemaService
 public struct UCPOrderResponseSchemaService: Codable, Sendable {
     /// Entity-specific configuration. Structure defined by each entity's schema.
     public let config: [String: JSONAny]?
     /// Unique identifier for this entity instance. Used to disambiguate when multiple instances
     /// exist.
     public let id: String?
@@ -3729,7 +3729,7 @@
 // MARK: - CapabilityElement
 public struct CapabilityElement: Codable, Sendable {
     /// Entity-specific configuration. Structure defined by each entity's schema.
     public let config: [String: JSONAny]?
     /// Unique identifier for this entity instance. Used to disambiguate when multiple instances
     /// exist.
     public let id: String?
@@ -3805,7 +3805,7 @@
 // MARK: - PaymentHandlerElement
 public struct PaymentHandlerElement: Codable, Sendable {
     /// Entity-specific configuration. Structure defined by each entity's schema.
     public let config: [String: JSONAny]?
     /// Unique identifier for this entity instance. Used to disambiguate when multiple instances
     /// exist.
     public let id: String
@@ -3884,7 +3884,7 @@
 public struct PaymentHandlerAvailableInstrument: Codable, Sendable {
     /// Constraints on this instrument type. Structure depends on instrument type and active
     /// capabilities.
     public let constraints: [String: JSONAny]?
     /// The instrument type identifier (e.g., 'card', 'gift_card'). References an instrument
     /// schema's type constant.
     public let type: String
@@ -3936,7 +3936,7 @@
 // MARK: - InstrumentsChangeService
 public struct InstrumentsChangeService: Codable, Sendable {
     /// Entity-specific configuration. Structure defined by each entity's schema.
     public let config: [String: JSONAny]?
     /// Unique identifier for this entity instance. Used to disambiguate when multiple instances
     /// exist.
     public let id: String?
@@ -4173,7 +4173,7 @@
     }
 }
 
-class JSONCodingKey: CodingKey {
+final class JSONCodingKey: CodingKey, Sendable {
     let key: String
 
     required init?(intValue: Int) {

protocol/scripts/generate_models.mjs

@@ -332,7 +332,21 @@ async function generateSwift(specDir, output) {
     output,
   ]);
 
-  await normalizeGeneratedFile(output);
+  await normalizeGeneratedFile(output, (source) => {
+    // quicktype's --sendable option marks generated models as Sendable, but quicktype 23.2.6
+    // still emits the dynamic JSON coding key helper as a non-final, non-Sendable class.
+    // Removing --swift-5-support does not change this output, so normalize the helper here.
+    const result = source.replace(
+      /^class JSONCodingKey: CodingKey \{/m,
+      "final class JSONCodingKey: CodingKey, Sendable {",
+    );
+
+    if (result === source) {
+      throw new Error("JSONCodingKey Sendable normalization failed; quicktype output may have changed");
+    }
+
+    return result;
+  });
 }
 
 async function generateTypescript(specDir, output) {