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Code Issues 95 Packages Projects Releases 10 Wiki Activity

WIP: reorganization of keypath utilities (in prep for @propertyWrappers)

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John Estropia
2019-07-09 14:50:23 +09:00
parent 67bb9340c7
commit ed3d21db77
14 changed files with 523 additions and 314 deletions
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50
Sources/Transformable.swift
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@@ -73,7 +73,7 @@ public enum TransformableContainer<O: CoreStoreObject> {
```
- Important: `Transformable.Required` properties are required to be stored properties. Computed properties will be ignored, including `lazy` and `weak` properties.
*/
public final class Required<V: NSCoding & NSCopying>: AttributeProtocol {
public final class Required<V: NSCoding & NSCopying>: AttributeKeyPathStringConvertible, AttributeProtocol {
/**
Initializes the metadata for the property.
@@ -138,9 +138,9 @@ public enum TransformableContainer<O: CoreStoreObject> {
}
/**
The property value.
The attribute value
*/
public var value: V {
public var value: ReturnValueType {
get {
@@ -190,6 +190,25 @@ public enum TransformableContainer<O: CoreStoreObject> {
}
// MARK: AnyKeyPathStringConvertible
public var cs_keyPathString: String {
return self.keyPath
}
// MARK: KeyPathStringConvertible
public typealias ObjectType = O
public typealias DestinationValueType = V
// MARK: AttributeKeyPathStringConvertible
public typealias ReturnValueType = DestinationValueType
// MARK: AttributeProtocol
internal static var attributeType: NSAttributeType {
@@ -270,7 +289,7 @@ public enum TransformableContainer<O: CoreStoreObject> {
```
- Important: `Transformable.Optional` properties are required to be stored properties. Computed properties will be ignored, including `lazy` and `weak` properties.
*/
public final class Optional<V: NSCoding & NSCopying>: AttributeProtocol {
public final class Optional<V: NSCoding & NSCopying>: AttributeKeyPathStringConvertible, AttributeProtocol {
/**
Initializes the metadata for the property.
@@ -332,9 +351,9 @@ public enum TransformableContainer<O: CoreStoreObject> {
}
/**
The property value.
The attribute value
*/
public var value: V? {
public var value: ReturnValueType {
get {
@@ -384,6 +403,25 @@ public enum TransformableContainer<O: CoreStoreObject> {
}
// MARK: AnyKeyPathStringConvertible
public var cs_keyPathString: String {
return self.keyPath
}
// MARK: KeyPathStringConvertible
public typealias ObjectType = O
public typealias DestinationValueType = V
// MARK: AttributeKeyPathStringConvertible
public typealias ReturnValueType = DestinationValueType?
// MARK: AttributeProtocol
internal static var attributeType: NSAttributeType {