Add Decimal support #8

Author: colemancda

Sources/CoreDataModel/NSAttributeType.swift

@@ -36,6 +36,8 @@ public extension NSAttributeType {
             self = .UUIDAttributeType
         case .url:
             self = .URIAttributeType
+        case .decimal:
+            self = .decimalAttributeType
         }
     }
 }
@@ -53,7 +55,7 @@ public extension AttributeType {
         case .integer64AttributeType:
             self = .int64
         case .decimalAttributeType:
-            return nil
+            self = .decimal
         case .doubleAttributeType:
             self = .double
         case .floatAttributeType:

Sources/CoreDataModel/NSManagedObject.swift

@@ -47,6 +47,8 @@ internal extension NSManagedObject {
             return .float(value)
         } else if let value = objectValue as? Double {
             return .double(value)
+        } else if let value = objectValue as? NSDecimalNumber {
+            return .decimal(value as Decimal)
         } else {
             assertionFailure("Invalid CoreData attribute value \(objectValue)")
             throw CocoaError(.coreData)
@@ -82,6 +84,8 @@ internal extension NSManagedObject {
             objectValue = value as NSNumber
         case let .double(value):
             objectValue = value as NSNumber
+        case let .decimal(value):
+            objectValue = value as NSDecimalNumber
         }
 
         self.setValue(objectValue, forKey: key.rawValue)

Sources/CoreModel/AttributeType.swift

@@ -42,4 +42,7 @@ public enum AttributeType: String, Codable, CaseIterable, Sendable {
 
     /// URL
     case url
+    
+    /// Decimal
+    case decimal
 }

Sources/CoreModel/Decodable.swift

@@ -192,6 +192,7 @@ extension Int: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -216,6 +217,7 @@ extension Int8: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -240,6 +242,7 @@ extension Int16: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -264,6 +267,7 @@ extension Int32: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -288,6 +292,7 @@ extension Int64: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -312,6 +317,7 @@ extension UInt: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -337,6 +343,7 @@ extension UInt8: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -362,6 +369,7 @@ extension UInt16: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -387,6 +395,7 @@ extension UInt32: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil
@@ -411,6 +420,7 @@ extension UInt64: AttributeDecodable {
             .data,
             .date,
             .bool,
+            .decimal,
             .float,
             .double:
             return nil

Sources/CoreModel/PropertyValue.swift

@@ -22,6 +22,7 @@ public enum AttributeValue: Equatable, Hashable, Codable {
     case int64(Int64)
     case float(Float)
     case double(Double)
+    case decimal(Decimal)
 }
 
 /// CoreModel Relationship Value