Use throwing initializer

Author: tinder-cfuller

Swift/Sources/StateMachineMacros/Macros/StateMachineHashableMacro.swift

@@ -4,6 +4,7 @@
 //
 
 import SwiftSyntax
+import SwiftSyntaxBuilder
 import SwiftSyntaxMacros
 
 public struct StateMachineHashableMacro: ExtensionMacro {
@@ -62,7 +63,7 @@ public struct StateMachineHashableMacro: ExtensionMacro {
             }
         }
 
-        let node: DeclSyntax = """
+        let node: SyntaxNodeString = """
             extension \(type): StateMachineHashable {
 
                 enum HashableIdentifier {
@@ -84,9 +85,6 @@ public struct StateMachineHashableMacro: ExtensionMacro {
             }
             """
 
-        guard let extensionDecl: ExtensionDeclSyntax = .init(node)
-        else { throw StateMachineHashableMacroError.invalidExtension }
-
-        return [extensionDecl]
+        return try [ExtensionDeclSyntax(node)]
     }
 }

Swift/Sources/StateMachineMacros/Macros/StateMachineHashableMacroError.swift

@@ -7,16 +7,13 @@ public enum StateMachineHashableMacroError: Error, CustomStringConvertible {
 
     case typeMustBeEnumeration
     case enumerationMustHaveCases
-    case invalidExtension
 
     public var description: String {
         switch self {
         case .typeMustBeEnumeration:
             return "Type Must Be Enumeration"
         case .enumerationMustHaveCases:
             return "Enumeration Must Have Cases"
-        case .invalidExtension:
-            return "Invalid Extension"
         }
     }
 }