change API details

Author: cherylEnkidu

Firestore/Swift/Source/SwiftAPI/Pipeline/AliasedExpression.swift

@@ -13,9 +13,9 @@
 // limitations under the License.
 
 public struct AliasedExpression: Selectable, SelectableWrapper, Sendable {
-  public var alias: String
+  public let alias: String
 
-  public var expr: Expression
+  public let expr: Expression
 
   init(_ expr: Expression, _ alias: String) {
     self.alias = alias

Firestore/Swift/Source/SwiftAPI/Pipeline/DistanceMeasure.swift

@@ -29,11 +29,11 @@ public struct DistanceMeasure: Sendable, Equatable, Hashable {
     case dotProduct = "dot_product"
   }
 
-  public static let euclidean: DistanceMeasure = DistanceMeasure(kind: .euclidean)
+  public static let euclidean: DistanceMeasure = .init(kind: .euclidean)
 
-  public static let cosine: DistanceMeasure = DistanceMeasure(kind: .cosine)
+  public static let cosine: DistanceMeasure = .init(kind: .cosine)
 
-  public static let dotProduct: DistanceMeasure = DistanceMeasure(kind: .dotProduct)
+  public static let dotProduct: DistanceMeasure = .init(kind: .dotProduct)
 
   init(kind: Kind) {
     self.kind = kind

Firestore/Swift/Source/SwiftAPI/Pipeline/Ordering.swift

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-public class Ordering: @unchecked Sendable {
+public struct Ordering: @unchecked Sendable {
   let expr: Expression
   let direction: Direction
   let bridge: OrderingBridge

Firestore/Swift/Tests/Integration/PipelineApiTests.swift

@@ -234,7 +234,7 @@ final class PipelineApiTests: FSTIntegrationTestCase {
     _ = db.pipeline().collection("books").sample(count: 10)
 
     // Sample 10 percent of the collection of books
-    _ = db.pipeline().collection("books").sample(percentage: 10)
+    _ = db.pipeline().collection("books").sample(percentage: 0.1)
   }
 
   func testUnionStage() async throws {