removed warnings

Author: albertopeam

Sources/Web3Core/Transaction/Envelope/EIP1559Envelope.swift

@@ -250,9 +250,9 @@ extension EIP1559Envelope {
 
         switch type {
         case .transaction:
-            fields = [chainID, nonce, maxPriorityFeePerGas, maxFeePerGas, gasLimit, to.addressData, value, data, list, v, r, s] as [AnyObject]
+            fields = [chainID, nonce, maxPriorityFeePerGas, maxFeePerGas, gasLimit, to.addressData, value, data, list, v, r, s].toAnyObject()
         case .signature:
-            fields = [chainID, nonce, maxPriorityFeePerGas, maxFeePerGas, gasLimit, to.addressData, value, data, list] as [AnyObject]
+            fields = [chainID, nonce, maxPriorityFeePerGas, maxFeePerGas, gasLimit, to.addressData, value, data, list].toAnyObject()
         }
         guard var result = RLP.encode(fields) else { return nil }
         result.insert(UInt8(self.type.rawValue), at: 0)

Sources/Web3Core/Transaction/Envelope/EIP2930Envelope.swift

@@ -211,9 +211,9 @@ extension EIP2930Envelope {
 
         switch type {
         case .transaction:
-            fields = [chainID, nonce, gasPrice, gasLimit, to.addressData, value, data, list, v, r, s] as [AnyObject]
+            fields = [chainID, nonce, gasPrice, gasLimit, to.addressData, value, data, list, v, r, s].toAnyObject()
         case .signature:
-            fields = [chainID, nonce, gasPrice, gasLimit, to.addressData, value, data, list] as [AnyObject]
+            fields = [chainID, nonce, gasPrice, gasLimit, to.addressData, value, data, list].toAnyObject()
         }
         guard var result = RLP.encode(fields) else { return nil }
         result.insert(UInt8(self.type.rawValue), at: 0)

Sources/Web3Core/Transaction/Envelope/LegacyEnvelope.swift

@@ -195,12 +195,12 @@ extension LegacyEnvelope {
         let fields: [AnyObject]
         switch type {
         case .transaction:
-            fields = [nonce, gasPrice, gasLimit, to.addressData, value, data, v, r, s] as [AnyObject]
+            fields = [nonce, gasPrice, gasLimit, to.addressData, value, data, v, r, s].toAnyObject()
         case .signature:
-            if let chainID = chainID, chainID != 0 {
-                fields = [nonce, gasPrice, gasLimit, to.addressData, value, data, chainID, BigUInt(0), BigUInt(0)] as [AnyObject]
+            if let chainID = self.chainID, chainID != 0 {
+                fields = [nonce, gasPrice, gasLimit, to.addressData, value, data, chainID, BigUInt(0), BigUInt(0)].toAnyObject()
             } else {
-                fields = [nonce, gasPrice, gasLimit, to.addressData, value, data] as [AnyObject]
+                fields = [nonce, gasPrice, gasLimit, to.addressData, value, data].toAnyObject()
             }
         }
         return RLP.encode(fields)

Sources/Web3Core/Utility/Array+Extension.swift

@@ -106,3 +106,12 @@ extension Array where Element: BinaryInteger {
         return sorted_data[index]
     }
 }
+
+//MARK: - Conversion
+
+/// Transforms an Array of Any? into an Array of AnyObject
+extension Array where Element == Any? {
+    func toAnyObject() -> [AnyObject] {
+        self.map{ $0 as AnyObject }
+    }
+}

Tests/web3swiftTests/localTests/ArrayExtensionTests.swift

@@ -0,0 +1,30 @@
+//
+//  ArrayExtensionTests.swift
+//  Created by albertopeam on 25/11/22.
+//
+
+@testable import Core
+import XCTest
+
+final class ArrayExtensionTests: XCTestCase {
+    func testToAnyObjectEmpty() {
+        let result = [].toAnyObject()
+        XCTAssertEqual(result.count, 0)
+    }
+    
+    func testToAnyObjectNils() throws {
+        let result = [nil, nil].toAnyObject()
+        XCTAssertEqual(result.count, 2)
+        XCTAssertTrue(result.first is NSNull)
+        XCTAssertTrue(result.dropFirst().first is NSNull)
+    }
+    
+    func testToAnyObjectNilAndNonNils() throws {
+        let result = [1, nil, "", NSNull()].toAnyObject()
+        XCTAssertEqual(result.count, 4)
+        XCTAssertEqual(result.first as? Int, 1)
+        XCTAssertTrue(result.dropFirst().first is NSNull)
+        XCTAssertNil(result.dropFirst().first as? String, "2")
+        XCTAssertTrue(result.dropFirst().first is NSNull)
+    }
+}