Update project to C# 12 and use new features

Author: d4n3436

LanguageScraper/GoogleLanguageScraper.cs

@@ -13,17 +13,17 @@ namespace LanguageScraper;
 // For GoogleTranslator and GoogleTranslator2
 public class GoogleLanguageScraper : ILanguageScraper
 {
-    private static ReadOnlySpan<byte> LanguagesId => Encoding.UTF8.GetBytes("n9wk7");
+    private static ReadOnlySpan<byte> LanguagesId => "n9wk7"u8;
 
-    private static ReadOnlySpan<byte> TtsLanguagesId => Encoding.UTF8.GetBytes("ycyxUb");
+    private static ReadOnlySpan<byte> TtsLanguagesId => "ycyxUb"u8;
 
-    private static ReadOnlySpan<byte> LanguagesStart => Encoding.UTF8.GetBytes("data:");
+    private static ReadOnlySpan<byte> LanguagesStart => "data:"u8;
 
-    private static ReadOnlySpan<byte> LanguagesEnd => Encoding.UTF8.GetBytes(", sideChannel");
+    private static ReadOnlySpan<byte> LanguagesEnd => ", sideChannel"u8;
 
-    private static ReadOnlySpan<byte> NativeNamesStart => Encoding.UTF8.GetBytes("window.LanguageDisplays.nativeNames = ");
+    private static ReadOnlySpan<byte> NativeNamesStart => "window.LanguageDisplays.nativeNames = "u8;
 
-    private static ReadOnlySpan<byte> NativeNamesEnd => Encoding.UTF8.GetBytes(";window.LanguageDisplays.localNames");
+    private static ReadOnlySpan<byte> NativeNamesEnd => ";window.LanguageDisplays.localNames"u8;
 
     private readonly HttpClient _httpClient = new();
 
@@ -85,7 +85,7 @@ public async Task DisplayMissingLanguagesAsync()
         }
     }
 
-    private static IReadOnlyList<ILanguage> GetTtsLanguages(byte[] htmlBytes)
+    private static ScrapedLanguage[] GetTtsLanguages(byte[] htmlBytes)
     {
         return GetLanguageData(htmlBytes, TtsLanguagesId)
             .RootElement[0]
@@ -123,7 +123,7 @@ private async Task<IReadOnlyList<ILanguage>> GetLanguagesAsync(byte[] htmlBytes)
                 Name: x.Value,
                 ISO6391: x.Key,
                 ISO6393: "?",
-                NativeName: nativeNames.TryGetValue(x.Key, out string? nativeName) ? nativeName : "?"))
+                NativeName: nativeNames.GetValueOrDefault(x.Key, "?")))
             .ToArray();
     }
 

LanguageScraper/MicrosoftLanguageScraper.cs

@@ -19,7 +19,7 @@ public MicrosoftLanguageScraper()
 
     public TranslationServices TranslationService => TranslationServices.Microsoft;
 
-    public IReadOnlyCollection<ILanguage> ExistingTtsLanguages => Array.Empty<ILanguage>();
+    public IReadOnlyCollection<ILanguage> ExistingTtsLanguages => [];
 
     public async Task<LanguageData> GetLanguageDataAsync()
     {

LanguageScraper/YandexLanguageScraper.cs

@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Net.Http;
-using System.Text;
 using System.Text.Json;
 using System.Threading.Tasks;
 using GTranslate;
@@ -11,9 +10,9 @@ namespace LanguageScraper;
 
 public class YandexLanguageScraper : ILanguageScraper
 {
-    private static ReadOnlySpan<byte> TranslatorLangsStart => Encoding.UTF8.GetBytes("TRANSLATOR_LANGS: ");
+    private static ReadOnlySpan<byte> TranslatorLangsStart => "TRANSLATOR_LANGS: "u8;
 
-    private static ReadOnlySpan<byte> TranslatorLangsEnd => Encoding.UTF8.GetBytes(",\n");
+    private static ReadOnlySpan<byte> TranslatorLangsEnd => ",\n"u8;
 
     private readonly HttpClient _httpClient = new();
 
@@ -24,7 +23,7 @@ public YandexLanguageScraper()
 
     public TranslationServices TranslationService => TranslationServices.Yandex;
 
-    public IReadOnlyCollection<ILanguage> ExistingTtsLanguages => Array.Empty<ILanguage>();
+    public IReadOnlyCollection<ILanguage> ExistingTtsLanguages => [];
 
     public async Task<LanguageData> GetLanguageDataAsync()
     {
@@ -39,6 +38,6 @@ public async Task<LanguageData> GetLanguageDataAsync()
             .Select(x => new ScrapedLanguage(x.Value.GetString()!, x.Name, "?", "?"))
             .ToArray();
 
-        return new LanguageData { Languages = languages, TtsLanguages = Array.Empty<ILanguage>() };
+        return new LanguageData { Languages = languages, TtsLanguages = [] };
     }
 }

examples/TranslatorExample/Program.cs

@@ -9,7 +9,7 @@ internal static class Program
     private static async Task Main()
     {
         Console.WriteLine("Translator Example\n");
-        var translator = new AggregateTranslator();
+        using var translator = new AggregateTranslator();
 
         while (true)
         {

src/GTranslate/Extensions/StringExtensions.cs

@@ -5,7 +5,7 @@ namespace GTranslate.Extensions;
 
 internal static class StringExtensions
 {
-    private static readonly char[] _separators = { '\t', '\r', '\n', ' ' };
+    private static readonly char[] _separators = ['\t', '\r', '\n', ' '];
 
     // Splits a text into lines of max. 200 chars without breaking words (if possible)
     // This algorithm is not as accurate as the one Google uses, but it's good enough

src/GTranslate/GTranslate.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Version>2.1.6</Version>
-    <LangVersion>11</LangVersion>
+    <LangVersion>12</LangVersion>
     <TargetFrameworks>netstandard2.0;netstandard2.1;net6.0;net8.0</TargetFrameworks>
     <Authors>d4n3436</Authors>
     <Description>A collection of free translation APIs (Google Translate, Bing Translator, Microsoft Translator and Yandex.Translate). Currently supports translation, transliteration, language detection and text-to-speech.</Description>

src/GTranslate/Internal/CachedObject.cs

@@ -7,7 +7,7 @@ namespace GTranslate;
 /// Represents a generic cached object.
 /// </summary>
 /// <typeparam name="T">The type of the value to cache.</typeparam>
-[DebuggerDisplay("{" + nameof(DebuggerDisplay) + ",nq}")]
+[DebuggerDisplay($"{{{nameof(DebuggerDisplay)},nq}}")]
 internal readonly struct CachedObject<T>
 {
     /// <summary>

src/GTranslate/Internal/MemorySegment.cs

@@ -3,7 +3,7 @@
 
 namespace GTranslate;
 
-internal class MemorySegment<T> : ReadOnlySequenceSegment<T>
+internal sealed class MemorySegment<T> : ReadOnlySequenceSegment<T>
 {
     public MemorySegment(ReadOnlyMemory<T> memory)
     {

src/GTranslate/Internal/MicrosoftVoiceContext.cs

@@ -4,11 +4,7 @@ namespace GTranslate;
 
 
 [JsonSerializable(typeof(MicrosoftVoice[]))]
-internal partial class MicrosoftVoiceContext : JsonSerializerContext
-{
-}
+internal sealed partial class MicrosoftVoiceContext : JsonSerializerContext;
 
 [JsonSerializable(typeof(string))]
-internal partial class StringContext : JsonSerializerContext
-{
-}
+internal sealed partial class StringContext : JsonSerializerContext;

src/GTranslate/Internal/ReadOnlySequenceStream.cs

@@ -30,7 +30,7 @@ namespace GTranslate;
 using System.Threading;
 using System.Threading.Tasks;
 
-internal class ReadOnlySequenceStream : Stream
+internal sealed class ReadOnlySequenceStream : Stream
 {
     private readonly ReadOnlySequence<byte> _readOnlySequence;
     private bool _isDisposed;