Array.Exist and Array.Find.

specs/Qowaiv.Specs/Extensions/System.Array.cs

@@ -0,0 +1,11 @@
+using System.Runtime.CompilerServices;
+
+namespace System;
+
+internal static class QowaivArrayExtensions
+{
+    [Pure]
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static bool Exists<T>(this T[] array, Predicate<T> match)
+        => Array.Exists(array, match);
+}

specs/Qowaiv.Specs/TestTools/SingleValueObjectSpecs.cs

@@ -37,10 +37,11 @@ public static IEnumerable<Type> JsonSerializable
             });
 
         private static bool IsJsonSerializable(Type type)
-            => type.GetMethods(BindingFlags.Static | BindingFlags.Public)
-            .Any(m => m.Name == nameof(Date.FromJson)
-                && m.ReturnType == type
-                && m.GetParameters().Length == 1
-                && m.GetParameters()[0].ParameterType == typeof(string));
+            => type
+                .GetMethods(BindingFlags.Static | BindingFlags.Public)
+                .Exists(m => m.Name == nameof(Date.FromJson)
+                    && m.ReturnType == type
+                    && m.GetParameters().Length == 1
+                    && m.GetParameters()[0].ParameterType == typeof(string));
     }
 }

src/Qowaiv.TestTools/Extensions/System.Array.cs

@@ -0,0 +1,11 @@
+using System.Runtime.CompilerServices;
+
+namespace System;
+
+internal static class QowaivArrayExtensions
+{
+    [Pure]
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static T? Find<T>(this T[] array, Predicate<T> match)
+        => Array.Find(array, match);
+}

src/Qowaiv.TestTools/Globalization/TestTimeZones.cs

@@ -36,7 +36,7 @@ public static class TestTimeZones
         bool disableDaylightSavingTime)
     {
         var ctor = typeof(TimeZoneInfo).GetConstructors(BindingFlags.NonPublic | BindingFlags.Instance)
-            .FirstOrDefault(ct => ct.GetParameters() is { Length: >= 7 } pars
+            .Find(ct => ct.GetParameters() is { Length: >= 7 } pars
                 && pars[0].ParameterType == typeof(string)
                 && pars[1].ParameterType == typeof(TimeSpan)
                 && pars[6].ParameterType == typeof(bool))

src/Qowaiv.TestTools/JsonTester.cs

@@ -56,7 +56,7 @@ static string ToString(object? val)
         var parameterType = val?.GetType();
         var fromJson = typeof(T)
             .GetMethods(BindingFlags.Static | BindingFlags.Public)
-            .FirstOrDefault(m => FromJson<T>(m, parameterType));
+            .Find(m => FromJson<T>(m, parameterType));
 
         if (fromJson is null)
         {
@@ -77,9 +77,7 @@ static string ToString(object? val)
     [Pure]
     public static object? Write<T>(T val)
     {
-        var toJson = typeof(T)
-            .GetMethods(BindingFlags.Instance | BindingFlags.Public)
-            .FirstOrDefault(ToJson);
+        var toJson = typeof(T).GetMethods(BindingFlags.Instance | BindingFlags.Public).Find(ToJson);
 
         return toJson is null
             ? throw new InvalidOperationException($"Could not find {typeof(T).Name}.ToJson().")

src/Qowaiv/Extensions/System.Array.cs

@@ -0,0 +1,15 @@
+using System.Runtime.CompilerServices;
+
+namespace System;
+
+internal static class QowaivArrayExtensions
+{
+    [Pure]
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static bool Exists<T>(this T[] array, Predicate<T> match)
+        => Array.Exists(array, match);
+
+    [Pure]
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static bool None<T>(this T[] array) => array.Length == 0;
+}

src/Qowaiv/OpenApi/OpenApiDataType.cs

@@ -142,5 +142,5 @@ private static Type AsDataType(Type type)
 
     [Pure]
     private static bool HasPublicParameterlessCtor(Type type)
-        => type.GetConstructors().Any(ctor => !ctor.GetParameters().Any());
+        => type.GetConstructors().Exists(ctor => ctor.GetParameters().None());
 }