From 1c03027db6aa86c2d35bd38b2ae81b0ef738fbec Mon Sep 17 00:00:00 2001
From: smdn <smdn@smdn.jp>
Date: Sat, 24 Dec 2022 01:01:06 +0900
Subject: [PATCH] make lambda static

---
 src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/KanaUtils.cs  | 4 ++--
 src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/Translator.cs | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/KanaUtils.cs b/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/KanaUtils.cs
index b73b816..02abe10 100644
--- a/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/KanaUtils.cs
+++ b/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/KanaUtils.cs
@@ -34,7 +34,7 @@ public static string ConvertWideHiraganaToKatakana(string input)
       return string.Empty;
 
 #if SYSTEM_STRING_CREATE
-    return string.Create(input.Length, input, (chars, s) => {
+    return string.Create(input.Length, input, static (chars, s) => {
       for (var index = 0; index < chars.Length; index++) {
         chars[index] = s[index] is >= WideHiraganaStart and <= WideHiraganaEnd
           ? (char)(s[index] + OffsetFromHiraganaToKatakana)
@@ -64,7 +64,7 @@ public static string ConvertWideKatakanaToHiragana(string input)
       return string.Empty;
 
 #if SYSTEM_STRING_CREATE
-    return string.Create(input.Length, input, (chars, s) => {
+    return string.Create(input.Length, input, static (chars, s) => {
       for (var index = 0; index < chars.Length; index++) {
         chars[index] = s[index] is >= WideKatakanaStart and <= WideKatakanaEnd
           ? (char)(s[index] - OffsetFromHiraganaToKatakana)
diff --git a/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/Translator.cs b/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/Translator.cs
index 9f0488a..ca8b004 100644
--- a/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/Translator.cs
+++ b/src/Smdn.Text.Ondulish/Smdn.Text.Ondulish/Translator.cs
@@ -149,7 +149,7 @@ f.ConvertedText is null
             ? ConvertWithDictionary(f.SourceText, phonemeDictionary)
             : Enumerable.Repeat(f, 1)
         )
-        .Select(f =>
+        .Select(static f =>
           new TextFragment(
             f.SourceText,
             f.ConvertedText ?? KanaUtils.ConvertWideHiraganaToKatakana(f.SourceText) // redundant?
@@ -169,7 +169,7 @@ f.ConvertedText is null
 
       output.WriteLine(
         string.Concat(
-          fragments.Select(fragment => fragment.ConvertedText)
+          fragments.Select(static fragment => fragment.ConvertedText)
         )
       );
     }
@@ -277,7 +277,7 @@ private class ReadOnlyOrderedDictionary<TKey, TValue> : IReadOnlyDictionary<TKey
     public ReadOnlyOrderedDictionary(IEnumerable<(TKey Key, TValue Value)> dictionary)
       : this(
         (dictionary ?? throw new ArgumentNullException(nameof(dictionary)))
-        .Select(pair => new KeyValuePair<TKey, TValue>(pair.Key, pair.Value))
+        .Select(static pair => new KeyValuePair<TKey, TValue>(pair.Key, pair.Value))
         .ToList()
       )
     { }