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submodules/Postbox/Sources/Utils/Encoder/AdaptedPostboxEncoder.swift

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+import Foundation
+
+public class AdaptedPostboxEncoder {
+    func encode(_ value: Encodable) throws -> Data {
+        let encoder = _AdaptedPostboxEncoder()
+        try value.encode(to: encoder)
+        return encoder.data
+    }
+}
+
+final class _AdaptedPostboxEncoder {
+    var codingPath: [CodingKey] = []
+    
+    var userInfo: [CodingUserInfoKey : Any] = [:]
+    
+    fileprivate var container: AdaptedPostboxEncodingContainer?
+
+    var data: Data {
+        return self.container!.makeData()
+    }
+}
+
+extension _AdaptedPostboxEncoder: Encoder {
+    fileprivate func assertCanCreateContainer() {
+        precondition(self.container == nil)
+    }
+    
+    func container<Key>(keyedBy type: Key.Type) -> KeyedEncodingContainer<Key> where Key : CodingKey {
+        assertCanCreateContainer()
+        
+        let container = KeyedContainer<Key>(codingPath: self.codingPath, userInfo: self.userInfo)
+        self.container = container
+        
+        return KeyedEncodingContainer(container)
+    }
+    
+    func unkeyedContainer() -> UnkeyedEncodingContainer {
+        preconditionFailure()
+    }
+    
+    func singleValueContainer() -> SingleValueEncodingContainer {
+        preconditionFailure()
+    }
+}
+
+protocol AdaptedPostboxEncodingContainer: AnyObject {
+    func makeData() -> Data
+}