Code optimization

Author: CedX

Sources/Command/SqlOrderHint.cs

@@ -1,5 +1,7 @@
 namespace Belin.Sql;
 
+using System.Globalization;
+
 /// <summary>
 /// Defines the sort order for a database column.
 /// </summary>
@@ -31,7 +33,7 @@ public sealed class SqlOrderHint(string column, SortOrder sortOrder = SortOrder.
 	/// <returns>The order hint corresponding to the specified tuple.</returns>
 	/// <exception cref="ArgumentException">The specified array does not contain a column name and a sort order.</param>
 	public static implicit operator SqlOrderHint(object?[] orderHint) => orderHint.Length == 2
-		? new(orderHint[0]?.ToString() ?? "", orderHint[1] is SortOrder sortOrder ? sortOrder : Enum.Parse<SortOrder>(orderHint[1]?.ToString() ?? "", ignoreCase: true))
+		? new(Convert.ToString(orderHint[0], CultureInfo.InvariantCulture) ?? "", orderHint[1] is SortOrder sortOrder ? sortOrder : Enum.Parse<SortOrder>(Convert.ToString(orderHint[1], CultureInfo.InvariantCulture) ?? "", ignoreCase: true))
 		: throw new ArgumentException("The specified array must contain a column name and a sort order.", nameof(orderHint));
 
 	/// <summary>

Sources/Command/SqlOrderHintCollection.cs

@@ -2,6 +2,7 @@ namespace Belin.Sql;
 
 using System.Collections;
 using System.Collections.Specialized;
+using System.Globalization;
 
 /// <summary>
 /// A collection of hints describing the sort order of columns.
@@ -24,7 +25,7 @@ public class SqlOrderHintCollection(params IEnumerable<SqlOrderHint> orderHints)
 	/// <param name="columns">The array whose elements are copied to the order hint collection.</param>
 	/// <returns>The order hint collection corresponding to the specified array of column names.</returns>
 	public static implicit operator SqlOrderHintCollection(object?[] columns) =>
-		[.. columns.Select(value => new SqlOrderHint(value?.ToString() ?? "", SortOrder.Ascending))];
+		[.. columns.Select(value => new SqlOrderHint(Convert.ToString(value, CultureInfo.InvariantCulture) ?? "", SortOrder.Ascending))];
 
 	/// <summary>
 	/// Creates a new order hint collection from the specified array of column names.
@@ -48,8 +49,8 @@ public static implicit operator SqlOrderHintCollection(List<string> columns) =>
 	/// <param name="orderHints">The dictionary whose elements are copied to the order hint collection.</param>
 	/// <returns>The order hint collection corresponding to the specified dictionary of column names and sort orders.</returns>
 	public static implicit operator SqlOrderHintCollection(OrderedDictionary orderHints) => [.. orderHints.Cast<DictionaryEntry>().Select(entry => {
-		var value = entry.Value is SortOrder sortOrder ? sortOrder : Enum.Parse<SortOrder>(entry.Value?.ToString() ?? "", ignoreCase: true);
-		return new SqlOrderHint(entry.Key.ToString() ?? "", value);
+		var value = entry.Value is SortOrder sortOrder ? sortOrder : Enum.Parse<SortOrder>(Convert.ToString(entry.Value, CultureInfo.InvariantCulture) ?? "", ignoreCase: true);
+		return new SqlOrderHint(Convert.ToString(entry.Key, CultureInfo.InvariantCulture) ?? "", value);
 	})];
 
 	/// <summary>

Sources/Command/SqlParameter.cs

@@ -2,6 +2,7 @@ namespace Belin.Sql;
 
 using System.Data;
 using System.Diagnostics.CodeAnalysis;
+using System.Globalization;
 
 /// <summary>
 /// Represents a parameter of a parameterized SQL statement.
@@ -56,7 +57,7 @@ public sealed class SqlParameter(string name = "?", object? value = null) {
 	/// <returns>The parameter corresponding to the specified tuple.</returns>
 	/// <exception cref="ArgumentException">The specified array does not contain a parameter name and a value.</param>
 	public static implicit operator SqlParameter(object?[] parameter) => parameter.Length == 2
-		? new(parameter[0]?.ToString() ?? "", parameter[1])
+		? new(Convert.ToString(parameter[0], CultureInfo.InvariantCulture) ?? "", parameter[1])
 		: throw new ArgumentException("The specified array must contain a parameter name and a value.", nameof(parameter));
 
 	/// <summary>

Sources/Command/SqlParameterCollection.cs

@@ -1,6 +1,7 @@
 namespace Belin.Sql;
 
 using System.Collections;
+using System.Globalization;
 
 /// <summary>
 /// Collects all parameters relevant to a parameterized SQL statement.
@@ -53,8 +54,10 @@ public static implicit operator SqlParameterCollection(Dictionary<string, object
 	/// </summary>
 	/// <param name="parameters">The hash table whose elements are copied to the parameter collection.</param>
 	/// <returns>The parameter collection corresponding to the specified hash table of named parameters.</returns>
-	public static implicit operator SqlParameterCollection(Hashtable parameters) =>
-		parameters.Cast<DictionaryEntry>().ToDictionary(entry => entry.Key.ToString() ?? "", entry => entry.Value);
+	public static implicit operator SqlParameterCollection(Hashtable parameters) => parameters.Cast<DictionaryEntry>().ToDictionary(
+		entry => Convert.ToString(entry.Key, CultureInfo.InvariantCulture) ?? "",
+		entry => entry.Value
+	);
 
 	/// <summary>
 	/// Adds a new positional parameter to the end of this collection.