From 46c2edc40e4456937418c9e5860b3f2881d543df Mon Sep 17 00:00:00 2001
From: Katsuya Iida <katsuya.iida@gmail.com>
Date: Tue, 10 Oct 2023 09:46:23 +0900
Subject: [PATCH] seal classes with IDisposable (#21)

---
 .gitignore                                 | 3 +++
 NeMoOnnxSharp.Example/ModelDownloader.cs   | 2 +-
 NeMoOnnxSharp/EncDecCTCModel.cs            | 5 +----
 NeMoOnnxSharp/EncDecClassificationModel.cs | 3 +--
 NeMoOnnxSharp/FrameVAD.cs                  | 2 +-
 NeMoOnnxSharp/SpectrogramGenerator.cs      | 3 +--
 NeMoOnnxSharp/SpeechRecognizer.cs          | 3 +--
 NeMoOnnxSharp/Vocoder.cs                   | 3 +--
 8 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/.gitignore b/.gitignore
index dfcfd56..fd52b7e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -348,3 +348,6 @@ MigrationBackup/
 
 # Ionide (cross platform F# VS Code tools) working folder
 .ionide/
+
+# ONNX runtime
+*.onnx
diff --git a/NeMoOnnxSharp.Example/ModelDownloader.cs b/NeMoOnnxSharp.Example/ModelDownloader.cs
index 73a4a07..42d9a68 100644
--- a/NeMoOnnxSharp.Example/ModelDownloader.cs
+++ b/NeMoOnnxSharp.Example/ModelDownloader.cs
@@ -12,7 +12,7 @@
 
 namespace NeMoOnnxSharp.Example
 {
-    internal class ModelDownloader : IDisposable
+    internal sealed class ModelDownloader : IDisposable
     {
         private readonly HttpClient _httpClient;
 
diff --git a/NeMoOnnxSharp/EncDecCTCModel.cs b/NeMoOnnxSharp/EncDecCTCModel.cs
index f32241f..5c6d7b6 100644
--- a/NeMoOnnxSharp/EncDecCTCModel.cs
+++ b/NeMoOnnxSharp/EncDecCTCModel.cs
@@ -6,13 +6,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
-using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
 namespace NeMoOnnxSharp
 {
-    public class EncDecCTCModel : ASRModel, IDisposable
+    public sealed class EncDecCTCModel : ASRModel, IDisposable
     {
         private const string Vocabulary = " abcdefghijklmnopqrstuvwxyz'_";
 
diff --git a/NeMoOnnxSharp/EncDecClassificationModel.cs b/NeMoOnnxSharp/EncDecClassificationModel.cs
index daec4b8..4d17c57 100644
--- a/NeMoOnnxSharp/EncDecClassificationModel.cs
+++ b/NeMoOnnxSharp/EncDecClassificationModel.cs
@@ -6,11 +6,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace NeMoOnnxSharp
 {
-    public class EncDecClassificationModel : ASRModel, IDisposable
+    public sealed class EncDecClassificationModel : ASRModel, IDisposable
     {
         private static readonly string[] SpeechCommandsLabels = new string[]
         {
diff --git a/NeMoOnnxSharp/FrameVAD.cs b/NeMoOnnxSharp/FrameVAD.cs
index eafb085..1fe4dbb 100644
--- a/NeMoOnnxSharp/FrameVAD.cs
+++ b/NeMoOnnxSharp/FrameVAD.cs
@@ -8,7 +8,7 @@
 
 namespace NeMoOnnxSharp
 {
-    public class FrameVAD : IDisposable
+    public sealed class FrameVAD : IDisposable
     {
         private readonly int _sampleRate;
         private readonly int _modelWinLength;
diff --git a/NeMoOnnxSharp/SpectrogramGenerator.cs b/NeMoOnnxSharp/SpectrogramGenerator.cs
index 80cd9de..e2414e0 100644
--- a/NeMoOnnxSharp/SpectrogramGenerator.cs
+++ b/NeMoOnnxSharp/SpectrogramGenerator.cs
@@ -7,11 +7,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace NeMoOnnxSharp
 {
-    public class SpectrogramGenerator : IDisposable
+    public sealed class SpectrogramGenerator : IDisposable
     {
         private readonly BaseTokenizer _tokenizer;
         private readonly InferenceSession _inferSess;
diff --git a/NeMoOnnxSharp/SpeechRecognizer.cs b/NeMoOnnxSharp/SpeechRecognizer.cs
index 96193b6..98986d8 100644
--- a/NeMoOnnxSharp/SpeechRecognizer.cs
+++ b/NeMoOnnxSharp/SpeechRecognizer.cs
@@ -5,12 +5,11 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Reflection;
 using System.Runtime.InteropServices;
 
 namespace NeMoOnnxSharp
 {
-    public class SpeechRecognizer : IDisposable
+    public sealed class SpeechRecognizer : IDisposable
     {
         public delegate void SpeechStart(long position);
         public delegate void SpeechEnd(long position, short[] audioSignal, string? transcript);
diff --git a/NeMoOnnxSharp/Vocoder.cs b/NeMoOnnxSharp/Vocoder.cs
index 8b0dc4e..b33f212 100644
--- a/NeMoOnnxSharp/Vocoder.cs
+++ b/NeMoOnnxSharp/Vocoder.cs
@@ -6,11 +6,10 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace NeMoOnnxSharp
 {
-    public class Vocoder : IDisposable
+    public sealed class Vocoder : IDisposable
     {
         private readonly InferenceSession _inferSess;
         private readonly int _nfilt;