From e7e30f219c0129db7cb72f04e200098417ce25d0 Mon Sep 17 00:00:00 2001
From: Navan Chauhan <navanchauhan@gmail.com>
Date: Wed, 17 Apr 2024 12:02:38 -0600
Subject: initial commit

---
 Sources/SwiftChessNeo/InternalTypes.swift | 63 +++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Sources/SwiftChessNeo/InternalTypes.swift

(limited to 'Sources/SwiftChessNeo/InternalTypes.swift')

diff --git a/Sources/SwiftChessNeo/InternalTypes.swift b/Sources/SwiftChessNeo/InternalTypes.swift
new file mode 100644
index 0000000..c418c64
--- /dev/null
+++ b/Sources/SwiftChessNeo/InternalTypes.swift
@@ -0,0 +1,63 @@
+//
+//  InternalTypes.swift
+//  Sage
+//
+//  Copyright 2016-2017 Nikolai Vazquez
+//  Modified by SuperGeroy
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#if os(OSX)
+    import Cocoa
+    internal typealias _View = NSView
+    internal typealias _Color = NSColor
+#elseif os(iOS) || os(tvOS)
+    import UIKit
+    internal typealias _View = UIView
+    internal typealias _Color = UIColor
+#endif
+
+internal extension Optional {
+
+    var _altDescription: String {
+        return self.map({ String(describing: $0) }) ?? "nil"
+    }
+
+}
+
+extension RawRepresentable where RawValue == Int, Self: Comparable {
+
+    internal func _to(_ other: Self) -> [Self] {
+        if other > self {
+            return (rawValue...other.rawValue).compactMap(Self.init(rawValue:))
+        } else if other < self {
+            let values = (other.rawValue...rawValue).reversed()
+            return values.compactMap(Self.init(rawValue:))
+        } else {
+            return [self]
+        }
+    }
+
+    internal func _between(_ other: Self) -> [Self] {
+        if other > self {
+            return (rawValue + 1 ..< other.rawValue).compactMap(Self.init(rawValue:))
+        } else if other < self {
+            let values = (other.rawValue + 1 ..< rawValue).reversed()
+            return values.compactMap(Self.init(rawValue:))
+        } else {
+            return []
+        }
+    }
+
+}
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