associated types and typealiases prettification

Author: skywinder

Example/web3swiftBrowser/web3swiftBrowser.xcodeproj/project.pbxproj

@@ -410,6 +410,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = web3swiftBrowser/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.7;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = io.thematter.web3swiftBrowser;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -426,6 +427,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = web3swiftBrowser/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.7;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = io.thematter.web3swiftBrowser;
 				PRODUCT_NAME = "$(TARGET_NAME)";

Sources/web3swift/KeystoreManager/AbstractKeystore.swift

@@ -9,7 +9,8 @@ import Foundation
 //import EthereumAddress
 
 public protocol AbstractKeystore {
-    public func giveKeystoreParams() -> AbstractKeystoreParams
+    public associatedtype Params: AbstractKeystoreParams
+    func giveKeystoreParams() -> Params
     var addresses: [EthereumAddress]? { get }
     var isHDKeystore: Bool { get }
     func UNSAFE_getPrivateKeyData(password: String, account: EthereumAddress) throws -> Data

Sources/web3swift/KeystoreManager/BIP32Keystore.swift

@@ -11,8 +11,10 @@ import Foundation
 //import EthereumAddress
 
 public class BIP32Keystore: AbstractKeystore {
-    public func giveKeystoreParams() -> AbstractKeystoreParams {
-        keystoreParams
+
+    typealias Params = KeystoreParamsBIP32
+    public func giveKeystoreParams() -> Params {
+        self.keystoreParams
     }
 
     // Protocol

Sources/web3swift/KeystoreManager/BIP39.swift

@@ -107,7 +107,8 @@ public class BIP39 {
     static public func generateMnemonics(bitsOfEntropy: Int, language: BIP39Language = BIP39Language.english) throws -> String? {
         guard bitsOfEntropy >= 128 && bitsOfEntropy <= 256 && bitsOfEntropy.isMultiple(of: 32) else {return nil}
         guard let entropy = Data.randomBytes(length: bitsOfEntropy/8) else {throw AbstractKeystoreError.noEntropyError}
-        return BIP39.generateMnemonicsFromEntropy(entropy: entropy, language: language)
+        return BIP39.generateMnemonicsFromEntropy(entropy: entropy, language:
+        language)
 
     }
 

Sources/web3swift/KeystoreManager/EthereumKeystoreV3.swift

@@ -9,17 +9,18 @@ import CryptoSwift
 import Foundation
 
 public class EthereumKeystoreV3: AbstractKeystore {
+    typealias Params = KeystoreParamsV3
     public var keystoreParams: KeystoreParamsV3?
 
-    public func giveKeystoreParams() -> AbstractKeystoreParams {
+    public func giveKeystoreParams() -> Params {
         keystoreParams
     }
 
 
     // Protocol
     private var address: EthereumAddress?
     public var isHDKeystore: Bool = false
-    
+
     public var addresses: [EthereumAddress]? {
         get {
             if self.address != nil {
@@ -28,34 +29,34 @@ public class EthereumKeystoreV3: AbstractKeystore {
             return nil
         }
     }
-    
+
     public func UNSAFE_getPrivateKeyData(password: String, account: EthereumAddress) throws -> Data {
         if self.addresses?.count == 1 && account == self.addresses?.last {
             guard let privateKey = try? self.getKeyData(password) else {throw AbstractKeystoreError.invalidPasswordError}
             return privateKey
         }
         throw AbstractKeystoreError.invalidAccountError
     }
-    
+
     // Class
-    
+
     public func getAddress() -> EthereumAddress? {
         return self.address
     }
-    
+
     // --------------
-    
+
     public convenience init?(_ jsonString: String) {
         let lowercaseJSON = jsonString.lowercased()
         guard let jsonData = lowercaseJSON.data(using: .utf8) else {return nil}
         self.init(jsonData)
     }
-    
+
     public convenience init?(_ jsonData: Data) {
         guard let keystoreParams = try? JSONDecoder().decode(KeystoreParamsV3.self, from: jsonData) else {return nil}
         self.init(keystoreParams)
     }
-    
+
     public init?(_ keystoreParams: KeystoreParamsV3) {
         if (keystoreParams.version != 3) {return nil}
         if (keystoreParams.crypto.version != nil && keystoreParams.crypto.version != "1") {return nil}
@@ -66,19 +67,19 @@ public class EthereumKeystoreV3: AbstractKeystore {
             return nil
         }
     }
-    
+
     public init? (password: String = "web3swift", aesMode: String = "aes-128-cbc") throws {
         guard var newPrivateKey = SECP256K1.generatePrivateKey() else {return nil}
         defer {Data.zero(&newPrivateKey)}
         try encryptDataToStorage(password, keyData: newPrivateKey, aesMode: aesMode)
     }
-    
+
     public init? (privateKey: Data, password: String = "web3swift", aesMode: String = "aes-128-cbc") throws {
         guard privateKey.count == 32 else {return nil}
         guard SECP256K1.verifyPrivateKey(privateKey: privateKey) else {return nil}
         try encryptDataToStorage(password, keyData: privateKey, aesMode: aesMode)
     }
-    
+
     fileprivate func encryptDataToStorage(_ password: String, keyData: Data?, dkLen: Int=32, N: Int = 4096, R: Int = 6, P: Int = 1, aesMode: String = "aes-128-cbc") throws {
         if (keyData == nil) {
             throw AbstractKeystoreError.encryptionError("Encryption without key data")
@@ -117,7 +118,7 @@ public class EthereumKeystoreV3: AbstractKeystore {
         let keystoreparams = KeystoreParamsV3(address: addr.address.lowercased(), crypto: crypto, id: UUID().uuidString.lowercased(), version: 3)
         self.keystoreParams = keystoreparams
     }
-    
+
     public func regenerate(oldPassword: String, newPassword: String, dkLen: Int=32, N: Int = 4096, R: Int = 6, P: Int = 1) throws {
         var keyData = try self.getKeyData(oldPassword)
         if keyData == nil {
@@ -126,7 +127,7 @@ public class EthereumKeystoreV3: AbstractKeystore {
         defer {Data.zero(&keyData!)}
         try self.encryptDataToStorage(newPassword, keyData: keyData!, aesMode: self.keystoreParams!.crypto.cipher)
     }
-    
+
     fileprivate func getKeyData(_ password: String) throws -> Data? {
         guard let keystoreParams = self.keystoreParams else {return nil}
         guard let saltData = Data.fromHex(keystoreParams.crypto.kdfparams.salt) else {return nil}
@@ -187,7 +188,7 @@ public class EthereumKeystoreV3: AbstractKeystore {
 //        return Data(bytes:decryptedPK!)
         return Data(decryptedPK!)
     }
-    
+
     public func serialize() throws -> Data? {
         guard let params = self.keystoreParams else {return nil}
         let data = try JSONEncoder().encode(params)

Sources/web3swift/KeystoreManager/KeystoreManager.swift

@@ -9,8 +9,10 @@ import Foundation
 //import EthereumAddress
 
 public class KeystoreManager: AbstractKeystore {
-    public func giveKeystoreParams() -> AbstractKeystoreParams {
+    associatedtype Params = KeystoreParamsV3
+    public func giveKeystoreParams() -> Params {
         fatalError("giveKeystoreParams() is not available for manager implemented")
+        return nil
     }
 
     public var isHDKeystore: Bool = false

Sources/web3swift/KeystoreManager/PlainKeystore.swift

@@ -10,9 +10,11 @@ import Foundation
 //import EthereumAddress
 
 public class PlainKeystore: AbstractKeystore {
+    typealias Params = KeystoreParamsV3
+
     public var keystoreParams: KeystoreParamsV3?
 
-    public func giveKeystoreParams() -> AbstractKeystoreParams {
+    public func giveKeystoreParams() -> T {
         keystoreParams
     }