Swift5

.travis.yml

@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode10
+osx_image: xcode10.3
 cache:
   directories:
   - Libraries

BitcoinKit.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
   spec.name = 'BitcoinKit'
-  spec.version = '1.0.2'
+  spec.version = '1.1.0-beta5'
   spec.summary = 'Bitcoin(BCH/BTC) protocol toolkit for Swift'
   spec.description = <<-DESC
                        The BitcoinKit library is a Swift implementation of the Bitcoin(BCH/BTC) protocol. This library was originally made by Katsumi Kishikawa, and now is maintained by Yenom Inc. It allows maintaining a wallet and sending/receiving transactions without needing a full blockchain node. It comes with a simple wallet app showing how to use it.
@@ -17,7 +17,7 @@ Pod::Spec.new do |spec|
   spec.exclude_files = 'Sources/**/LinuxSupport.swift'
   spec.module_map = 'BitcoinKit/BitcoinKit.modulemap'
   spec.ios.deployment_target = '8.0'
-  spec.swift_version = '4.1'
+  spec.swift_version = '5.0'
 
   spec.pod_target_xcconfig = { 'SWIFT_WHOLE_MODULE_OPTIMIZATION' => 'YES',
                                'APPLICATION_EXTENSION_API_ONLY' => 'YES',

BitcoinKit.xcodeproj/project.pbxproj

@@ -209,6 +209,7 @@
 		6E20AED72112D417008A9810 /* MurmurHashTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6E20AED62112D417008A9810 /* MurmurHashTests.swift */; };
 		6E797C452116C8A5003BEDFD /* OpCodeFactoryTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6E797C442116C8A5003BEDFD /* OpCodeFactoryTests.swift */; };
 		6EE789DB2112C1E500EAB620 /* CryptoTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6EE789DA2112C1E500EAB620 /* CryptoTests.swift */; };
+		A201ABB6222ACF7100DEFE13 /* BitcoinKitPrivateSwift.swift in Sources */ = {isa = PBXBuildFile; fileRef = A201ABB5222ACF7100DEFE13 /* BitcoinKitPrivateSwift.swift */; };
 		A20B537F211C72F9009D147A /* UInt256Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = A20B537E211C72F9009D147A /* UInt256Tests.swift */; };
 		A246ED102118621B0000418D /* MerkleTree.swift in Sources */ = {isa = PBXBuildFile; fileRef = A246ED0F2118621B0000418D /* MerkleTree.swift */; };
 		A246ED12211864500000418D /* UInt256.swift in Sources */ = {isa = PBXBuildFile; fileRef = A246ED11211864500000418D /* UInt256.swift */; };
@@ -220,7 +221,6 @@
 		A2DE5110212AFCF200F54EA0 /* UInt256+BitcoinTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = A2DE510F212AFCF200F54EA0 /* UInt256+BitcoinTests.swift */; };
 		A2E11231212C400A00A0A40A /* ProofOfWorkTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = A2E11230212C400A00A0A40A /* ProofOfWorkTests.swift */; };
 		A2F06FBA2126785200DFF652 /* UInt32+Utility.swift in Sources */ = {isa = PBXBuildFile; fileRef = A2F06FB92126785200DFF652 /* UInt32+Utility.swift */; };
-		A201ABB6222ACF7100DEFE13 /* BitcoinKitPrivateSwift.swift in Sources */ = {isa = PBXBuildFile; fileRef = A201ABB5222ACF7100DEFE13 /* BitcoinKitPrivateSwift.swift */; };
 		CF432AF220F0CF9100AD4020 /* Base58Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = CF432AF120F0CF9100AD4020 /* Base58Tests.swift */; };
 		CF432AF420F0DFAC00AD4020 /* Bech32Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = CF432AF320F0DFAC00AD4020 /* Bech32Tests.swift */; };
 		CF432AF620F0ED4500AD4020 /* AddressTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = CF432AF520F0ED4500AD4020 /* AddressTests.swift */; };
@@ -455,6 +455,7 @@
 		6E20AED62112D417008A9810 /* MurmurHashTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MurmurHashTests.swift; sourceTree = "<group>"; };
 		6E797C442116C8A5003BEDFD /* OpCodeFactoryTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OpCodeFactoryTests.swift; sourceTree = "<group>"; };
 		6EE789DA2112C1E500EAB620 /* CryptoTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CryptoTests.swift; sourceTree = "<group>"; };
+		A201ABB5222ACF7100DEFE13 /* BitcoinKitPrivateSwift.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = BitcoinKitPrivateSwift.swift; path = Core/BitcoinKitPrivateSwift.swift; sourceTree = "<group>"; };
 		A20B537E211C72F9009D147A /* UInt256Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UInt256Tests.swift; sourceTree = "<group>"; };
 		A246ED0F2118621B0000418D /* MerkleTree.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MerkleTree.swift; sourceTree = "<group>"; };
 		A246ED11211864500000418D /* UInt256.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UInt256.swift; sourceTree = "<group>"; };
@@ -466,7 +467,6 @@
 		A2DE510F212AFCF200F54EA0 /* UInt256+BitcoinTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UInt256+BitcoinTests.swift"; sourceTree = "<group>"; };
 		A2E11230212C400A00A0A40A /* ProofOfWorkTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProofOfWorkTests.swift; sourceTree = "<group>"; };
 		A2F06FB92126785200DFF652 /* UInt32+Utility.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UInt32+Utility.swift"; sourceTree = "<group>"; };
-		A201ABB5222ACF7100DEFE13 /* BitcoinKitPrivateSwift.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = BitcoinKitPrivateSwift.swift; path = Core/BitcoinKitPrivateSwift.swift; sourceTree = "<group>"; };
 		CF432AF120F0CF9100AD4020 /* Base58Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Base58Tests.swift; sourceTree = "<group>"; };
 		CF432AF320F0DFAC00AD4020 /* Bech32Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Bech32Tests.swift; sourceTree = "<group>"; };
 		CF432AF520F0ED4500AD4020 /* AddressTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddressTests.swift; sourceTree = "<group>"; };
@@ -1488,7 +1488,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Libraries";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -1526,7 +1526,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
 				SWIFT_INCLUDE_PATHS = "$(SRCROOT)/Libraries";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:4.0
+// swift-tools-version:5.0
 import PackageDescription
 
 let package = Package(
@@ -25,5 +25,5 @@ let package = Package(
             dependencies: ["BitcoinKit"]
         )
     ],
-    swiftLanguageVersions: [4]
+    swiftLanguageVersions: [.v5]
 )

README.md

@@ -1,12 +1,25 @@
-![BitcoinKit: Let’s Play with Bitcoin in Swift!](https://user-images.githubusercontent.com/23519083/44261174-cc64aa00-a251-11e8-85b6-145e0bcae102.jpg)
-
-[![CI Status](http://img.shields.io/travis/yenom/BitcoinKit.svg)](https://travis-ci.org/yenom/BitcoinKit)
-[![codecov](https://codecov.io/gh/yenom/BitcoinKit/branch/master/graph/badge.svg)](https://codecov.io/gh/yenom/BitcoinKit)
-[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
-[![Version](https://img.shields.io/cocoapods/v/BitcoinKit.svg)](http://cocoadocs.org/docsets/BitcoinKit)
-[![Platform](https://img.shields.io/cocoapods/p/BitcoinKit.svg)](http://cocoadocs.org/docsets/BitcoinKit)
-[![Backers on Open Collective](https://opencollective.com/BitcoinKit/backers/badge.svg)](#backers) 
-[![Sponsors on Open Collective](https://opencollective.com/BitcoinKit/sponsors/badge.svg)](#sponsors) 
+<p align="center">
+    <img src="https://user-images.githubusercontent.com/23519083/44261174-cc64aa00-a251-11e8-85b6-145e0bcae102.jpg" alt="BitcoinKit: Let’s Play with Bitcoin in Swift!">
+    <a href="https://travis-ci.org/yenom/BitcoinKit">
+      <img src="http://img.shields.io/travis/yenom/BitcoinKit.svg" alt="TravisCI">
+    </a>
+    <a href="https://codecov.io/gh/yenom/BitcoinKit">
+      <img src="https://codecov.io/gh/yenom/BitcoinKit/branch/master/graph/badge.svg" />
+    </a>
+    <a href="https://swift.org">
+        <img src="http://img.shields.io/badge/swift-5.0+-brightgreen.svg" alt="Swift 5.0+">
+    </a>
+    <a href="https://github.com/Carthage/Carthage">
+        <img src="https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat" alt="Carthage">
+    </a>
+    <a href="https://swift.org/package-manager">
+        <img src="https://img.shields.io/badge/spm-compatible-brightgreen.svg?style=flat" alt="Swift Package Manager" />
+    </a>
+    <a href="http://cocoadocs.org/docsets/BitcoinKit">
+        <img src="https://img.shields.io/cocoapods/v/BitcoinKit.svg" alt="CococaPods" />
+    </a>
+</p>
+
 
 ### Welcome to BitcoinKit
 

Sources/BitcoinKit/Core/BitcoinKitPrivateSwift.swift

@@ -50,7 +50,7 @@ class _SwiftKey {
 			if outputlen != 33 {
 				return Data()
 			}
-			return Data(bytes: serializedPubkey)
+			return Data(serializedPubkey)
 		} else {
     		var serializedPubkey = [UInt8](repeating: 0, count: 65)
     		var outputlen = 65
@@ -60,7 +60,7 @@ class _SwiftKey {
     		if outputlen != 65 {
     			return Data()
     		}
-    		return Data(bytes: serializedPubkey)
+    		return Data(serializedPubkey)
 		}
 	}
 }
@@ -110,7 +110,7 @@ class _HDKey {
 			if secp256k1_ec_privkey_tweak_add(ctx, &privateKeyBytes, &derivedPrivateKeyBytes) == 0 {
 				return nil
 			}
-			result = Data(bytes: privateKeyBytes)
+			result = Data(privateKeyBytes)
 		} else {
 			guard let ctx = secp256k1_context_create(UInt32(SECP256K1_CONTEXT_VERIFY)) else {
 				return nil
@@ -129,10 +129,10 @@ class _HDKey {
 			if secp256k1_ec_pubkey_serialize(ctx, &compressedPublicKeyBytes, &compressedPublicKeyBytesLen, &secpPubkey, UInt32(SECP256K1_EC_COMPRESSED)) == 0 {
 				return nil
 			}
-			result = Data(bytes: compressedPublicKeyBytes)
+			result = Data(compressedPublicKeyBytes)
 		}
-	    let fingerPrint: UInt32 = _Hash.sha256ripemd160(publicKey).withUnsafeBytes { $0.pointee }
-		return _HDKey(privateKey: result, publicKey: result, chainCode: Data(bytes: derivedChainCode), depth: self.depth + 1, fingerprint: fingerPrint, childIndex: childIndex)
+	    let fingerPrint: UInt32 = _Hash.sha256ripemd160(publicKey).to(type: UInt32.self)
+		return _HDKey(privateKey: result, publicKey: result, chainCode: Data(derivedChainCode), depth: self.depth + 1, fingerprint: fingerPrint, childIndex: childIndex)
 	}
 }
 #endif

Sources/BitcoinKit/Core/BlockStore.swift

@@ -291,10 +291,10 @@ public class SQLiteBlockStore: BlockStore {
     public func addBlock(_ block: BlockMessage, hash: Data) throws {
         let stmt = statements["addBlock"]
 
-        try execute { hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0, Int32(hash.count), SQLITE_TRANSIENT) } }
+        try execute { hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0.baseAddress.unsafelyUnwrapped, Int32(hash.count), SQLITE_TRANSIENT) } }
         try execute { sqlite3_bind_int64(stmt, 2, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: block.version))) }
-        try execute { block.prevBlock.withUnsafeBytes { sqlite3_bind_blob(stmt, 3, $0, Int32(block.prevBlock.count), SQLITE_TRANSIENT) } }
-        try execute { block.merkleRoot.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0, Int32(block.merkleRoot.count), SQLITE_TRANSIENT) } }
+        try execute { block.prevBlock.withUnsafeBytes { sqlite3_bind_blob(stmt, 3, $0.baseAddress.unsafelyUnwrapped, Int32(block.prevBlock.count), SQLITE_TRANSIENT) } }
+        try execute { block.merkleRoot.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0.baseAddress.unsafelyUnwrapped, Int32(block.merkleRoot.count), SQLITE_TRANSIENT) } }
         try execute { sqlite3_bind_int64(stmt, 5, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: block.timestamp))) }
         try execute { sqlite3_bind_int64(stmt, 6, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: block.bits))) }
         try execute { sqlite3_bind_int64(stmt, 7, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: block.nonce))) }
@@ -307,20 +307,20 @@ public class SQLiteBlockStore: BlockStore {
     public func addMerkleBlock(_ merkleBlock: MerkleBlockMessage, hash: Data) throws {
         let stmt = statements["addMerkleBlock"]
 
-        try execute { hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0, Int32(hash.count), SQLITE_TRANSIENT) } }
+        try execute { hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0.baseAddress.unsafelyUnwrapped, Int32(hash.count), SQLITE_TRANSIENT) } }
         try execute { sqlite3_bind_int64(stmt, 2, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: merkleBlock.version))) }
-        try execute { merkleBlock.prevBlock.withUnsafeBytes { sqlite3_bind_blob(stmt, 3, $0, Int32(merkleBlock.prevBlock.count), SQLITE_TRANSIENT) } }
-        try execute { merkleBlock.merkleRoot.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0, Int32(merkleBlock.merkleRoot.count), SQLITE_TRANSIENT) } }
+        try execute { merkleBlock.prevBlock.withUnsafeBytes { sqlite3_bind_blob(stmt, 3, $0.baseAddress.unsafelyUnwrapped, Int32(merkleBlock.prevBlock.count), SQLITE_TRANSIENT) } }
+        try execute { merkleBlock.merkleRoot.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0.baseAddress.unsafelyUnwrapped, Int32(merkleBlock.merkleRoot.count), SQLITE_TRANSIENT) } }
         try execute { sqlite3_bind_int64(stmt, 5, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: merkleBlock.timestamp))) }
         try execute { sqlite3_bind_int64(stmt, 6, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: merkleBlock.bits))) }
         try execute { sqlite3_bind_int64(stmt, 7, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: merkleBlock.nonce))) }
         try execute { sqlite3_bind_int64(stmt, 8, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: merkleBlock.totalTransactions))) }
         try execute { sqlite3_bind_int64(stmt, 9, sqlite3_int64(bitPattern: merkleBlock.numberOfHashes.underlyingValue)) }
         let hashes = Data(merkleBlock.hashes.flatMap { $0 })
-        try execute { hashes.withUnsafeBytes { sqlite3_bind_blob(stmt, 10, $0, Int32(hashes.count), SQLITE_TRANSIENT) } }
+        try execute { hashes.withUnsafeBytes { sqlite3_bind_blob(stmt, 10, $0.baseAddress.unsafelyUnwrapped, Int32(hashes.count), SQLITE_TRANSIENT) } }
         try execute { sqlite3_bind_int64(stmt, 11, sqlite3_int64(bitPattern: merkleBlock.numberOfFlags.underlyingValue)) }
         let flags = Data(merkleBlock.flags)
-        try execute { flags.withUnsafeBytes { sqlite3_bind_blob(stmt, 12, $0, Int32(flags.count), SQLITE_TRANSIENT) } }
+        try execute { flags.withUnsafeBytes { sqlite3_bind_blob(stmt, 12, $0.baseAddress.unsafelyUnwrapped, Int32(flags.count), SQLITE_TRANSIENT) } }
 
         try executeUpdate { sqlite3_step(stmt) }
         try execute { sqlite3_reset(stmt) }
@@ -329,7 +329,7 @@ public class SQLiteBlockStore: BlockStore {
     public func addTransaction(_ transaction: Transaction, hash: Data) throws {
         let stmt = statements["addTransaction"]
 
-        try execute { hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0, Int32(hash.count), SQLITE_TRANSIENT) } }
+        try execute { hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0.baseAddress.unsafelyUnwrapped, Int32(hash.count), SQLITE_TRANSIENT) } }
         try execute { sqlite3_bind_int64(stmt, 2, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: transaction.version))) }
         try execute { sqlite3_bind_int(stmt, 3, 0) } // Not supported 'flag' currently
         try execute { sqlite3_bind_int64(stmt, 4, sqlite3_int64(bitPattern: transaction.txInCount.underlyingValue)) }
@@ -353,10 +353,10 @@ public class SQLiteBlockStore: BlockStore {
         let stmt = statements["addTransactionInput"]
 
         try execute { sqlite3_bind_int64(stmt, 1, sqlite3_int64(bitPattern: input.scriptLength.underlyingValue)) }
-        try execute { input.signatureScript.withUnsafeBytes { sqlite3_bind_blob(stmt, 2, $0, Int32(input.signatureScript.count), SQLITE_TRANSIENT) } }
+        try execute { input.signatureScript.withUnsafeBytes { sqlite3_bind_blob(stmt, 2, $0.baseAddress.unsafelyUnwrapped, Int32(input.signatureScript.count), SQLITE_TRANSIENT) } }
         try execute { sqlite3_bind_int64(stmt, 3, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: input.sequence))) }
-        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0, Int32(txId.count), SQLITE_TRANSIENT) } }
-        try execute { input.previousOutput.hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 5, $0, Int32(input.previousOutput.hash.count), SQLITE_TRANSIENT) } }
+        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0.baseAddress.unsafelyUnwrapped, Int32(txId.count), SQLITE_TRANSIENT) } }
+        try execute { input.previousOutput.hash.withUnsafeBytes { sqlite3_bind_blob(stmt, 5, $0.baseAddress.unsafelyUnwrapped, Int32(input.previousOutput.hash.count), SQLITE_TRANSIENT) } }
 
         try executeUpdate { sqlite3_step(stmt) }
         try execute { sqlite3_reset(stmt) }
@@ -368,8 +368,8 @@ public class SQLiteBlockStore: BlockStore {
         try execute { sqlite3_bind_int64(stmt, 1, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: index))) }
         try execute { sqlite3_bind_int64(stmt, 2, sqlite3_int64(bitPattern: UInt64(truncatingIfNeeded: output.value))) }
         try execute { sqlite3_bind_int64(stmt, 3, sqlite3_int64(bitPattern: output.scriptLength.underlyingValue)) }
-        try execute { output.lockingScript.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0, Int32(output.lockingScript.count), SQLITE_TRANSIENT) } }
-        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 5, $0, Int32(txId.count), SQLITE_TRANSIENT) } }
+        try execute { output.lockingScript.withUnsafeBytes { sqlite3_bind_blob(stmt, 4, $0.baseAddress.unsafelyUnwrapped, Int32(output.lockingScript.count), SQLITE_TRANSIENT) } }
+        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 5, $0.baseAddress.unsafelyUnwrapped, Int32(txId.count), SQLITE_TRANSIENT) } }
         if Script.isPublicKeyHashOut(output.lockingScript) {
             let pubKeyHash = Script.getPublicKeyHash(from: output.lockingScript)
             let address = publicKeyHashToAddress(Data([network.pubkeyhash]) + pubKeyHash)
@@ -382,14 +382,14 @@ public class SQLiteBlockStore: BlockStore {
 
     private func deleteTransactionInput(txId: Data) throws {
         let stmt = statements["deleteTransactionInput"]
-        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0, Int32(txId.count), SQLITE_TRANSIENT) } }
+        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0.baseAddress.unsafelyUnwrapped, Int32(txId.count), SQLITE_TRANSIENT) } }
         try executeUpdate { sqlite3_step(stmt) }
         try execute { sqlite3_reset(stmt) }
     }
 
     private func deleteTransactionOutput(txId: Data) throws {
         let stmt = statements["deleteTransactionOutput"]
-        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0, Int32(txId.count), SQLITE_TRANSIENT) } }
+        try execute { txId.withUnsafeBytes { sqlite3_bind_blob(stmt, 1, $0.baseAddress.unsafelyUnwrapped, Int32(txId.count), SQLITE_TRANSIENT) } }
         try executeUpdate { sqlite3_step(stmt) }
         try execute { sqlite3_reset(stmt) }
     }

Sources/BitcoinKit/Core/Helpers.swift

@@ -39,7 +39,7 @@ func pton(_ address: String) -> Data {
         inet_pton(AF_INET6, address, UnsafeMutablePointer($0))
     }
     var buffer = Data(count: 16)
-    _ = buffer.withUnsafeMutableBytes { memcpy($0, &addr, 16) }
+    _ = buffer.withUnsafeMutableBytes { memcpy($0.baseAddress.unsafelyUnwrapped, &addr, 16) }
     return buffer
 }