fix(swift): identifier objects' initializers must be public

Sources/OptolithDatabaseSchemaMacros/OptolithDatabaseSchemaMacro.swift

@@ -11,20 +11,20 @@ public struct IdentifierObjectMacro: DeclarationMacro {
         let uppercasedName = entityNameSyntax.expression.as(StringLiteralExprSyntax.self)?.representedLiteralValue ?? ""
         let lowercasedName = uppercasedName.pascalCaseToCamelCase()
         let snakeName = lowercasedName.camelCaseToSnakeCase()
-        
+
         return [DeclSyntax("""
         public let \(raw: lowercasedName): Int
         public var numericId: Int { \(raw: lowercasedName) }
-        
+
         enum CodingKeys: String, CodingKey {
             case tag
             case \(raw: lowercasedName) = \(literal: snakeName)
         }
-        
-        init(_ id: Int) {
+
+        public init(_ id: Int) {
             self.\(raw: lowercasedName) = id
         }
-        
+
         public init(from decoder: any Decoder) throws {
             let container = try decoder.container(keyedBy: CodingKeys.self)
             let tag = try container.decode(String.self, forKey: .tag)
@@ -37,9 +37,9 @@ public struct IdentifierObjectMacro: DeclarationMacro {
 
 //enum IdentifierObjectError: String, DiagnosticMessage {
 //    case onlyApplicableToEnum
-//    
+//
 //    var severity: DiagnosticSeverity { return .error }
-//    
+//
 //    var message: String {
 //        switch self {
 //        case .onlyApplicableToEnum: return "'@DiscriminatedEnum' can only be applied to an 'enum'"
@@ -47,7 +47,7 @@ public struct IdentifierObjectMacro: DeclarationMacro {
 //        case .invalidAssociatedType: return "A case with associated values may only have one parameter, which must be unnamed."
 //        }
 //    }
-//    
+//
 //    var diagnosticID: MessageID {
 //        MessageID(domain: "OptolithDatabaseSchemaMacros", id: rawValue)
 //    }
@@ -56,21 +56,21 @@ public struct IdentifierObjectMacro: DeclarationMacro {
 extension String {
     func camelCaseToSnakeCase() -> String {
         guard !self.isEmpty else { return self }
-        
+
         let withSimpleTransformed = self.replacing(/([A-Z][a-z])/) { match in
             "_\(match.output.1.lowercased())"
         }
-        
+
         let withAllCapsTransformed = withSimpleTransformed.replacing(/([A-Z]+)/) { match in
             "_\(match.output.1.lowercased())"
         }
-        
+
         return withAllCapsTransformed
     }
-    
+
     func pascalCaseToCamelCase() -> String {
         guard !self.isEmpty else { return self }
-        
+
         return self.first!.lowercased() + self.dropFirst()
     }
 }