From 0d0511e35d9965fc0ea5190ae3347c3d77c3334c Mon Sep 17 00:00:00 2001
From: TheArcaneBrony <myrainbowdash949@gmail.com>
Date: Mon, 14 Aug 2023 04:09:13 +0200
Subject: Split LibMatrix into separate repo

---
 LibMatrix/Extensions/DictionaryExtensions.cs | 33 ++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 LibMatrix/Extensions/DictionaryExtensions.cs

(limited to 'LibMatrix/Extensions/DictionaryExtensions.cs')

diff --git a/LibMatrix/Extensions/DictionaryExtensions.cs b/LibMatrix/Extensions/DictionaryExtensions.cs
new file mode 100644
index 0000000..fbc5cf5
--- /dev/null
+++ b/LibMatrix/Extensions/DictionaryExtensions.cs
@@ -0,0 +1,33 @@
+namespace LibMatrix.Extensions;
+
+public static class DictionaryExtensions {
+    public static bool ChangeKey<TKey, TValue>(this IDictionary<TKey, TValue> dict,
+        TKey oldKey, TKey newKey) {
+        TValue value;
+        if (!dict.Remove(oldKey, out value))
+            return false;
+
+        dict[newKey] = value; // or dict.Add(newKey, value) depending on ur comfort
+        return true;
+    }
+
+    public static Y GetOrCreate<X, Y>(this IDictionary<X, Y> dict, X key) where Y : new() {
+        if (dict.TryGetValue(key, out var value)) {
+            return value;
+        }
+
+        value = new Y();
+        dict.Add(key, value);
+        return value;
+    }
+
+    public static Y GetOrCreate<X, Y>(this IDictionary<X, Y> dict, X key, Func<X, Y> valueFactory) {
+        if (dict.TryGetValue(key, out var value)) {
+            return value;
+        }
+
+        value = valueFactory(key);
+        dict.Add(key, value);
+        return value;
+    }
+}
-- 
cgit 1.4.1