Code optimization

Author: cedx

src/Sql/Reflection/ColumnInfo.cs

@@ -6,8 +6,7 @@ namespace Belin.Sql.Reflection;
 /// <summary>
 /// Provides information about a database column.
 /// </summary>
-/// <param name="property">The property information providing the column metadata.</param>
-public sealed class ColumnInfo(PropertyInfo property) {
+public sealed class ColumnInfo {
 
 	/// <summary>
 	/// The nullability context.
@@ -27,38 +26,46 @@ public sealed class ColumnInfo(PropertyInfo property) {
 	/// <summary>
 	/// Value indicating whether the column value is generated by the database.
 	/// </summary>
-	public bool IsComputed => databaseGeneratedOption != DatabaseGeneratedOption.None;
+	public bool IsComputed { get; }
 
 	/// <summary>
 	/// Value indicating whether the column value is generated by the database when a row is inserted.
 	/// </summary>
-	public bool IsIdentity => databaseGeneratedOption == DatabaseGeneratedOption.Identity;
+	public bool IsIdentity { get; }
 
 	/// <summary>
 	/// Value indicating whether the column value is nullable.
 	/// </summary>
-	public bool IsNullable => Nullable.GetUnderlyingType(Type) is not null || nullability.WriteState != NullabilityState.NotNull;
+	public bool IsNullable { get; }
 
 	/// <summary>
 	/// The column name.
 	/// </summary>
-	public string Name { get; } = property.GetCustomAttribute<ColumnAttribute>()?.Name ?? property.Name;
+	public string Name { get; }
 
 	/// <summary>
 	/// The type of the column value.
 	/// </summary>
 	public Type Type => property.PropertyType;
 
 	/// <summary>
-	/// Value indicating how the database generates values for this column.
+	/// The property information providing the column metadata.
 	/// </summary>
-	private readonly DatabaseGeneratedOption databaseGeneratedOption =
-		property.GetCustomAttribute<DatabaseGeneratedAttribute>()?.DatabaseGeneratedOption ?? DatabaseGeneratedOption.None;
+	private readonly PropertyInfo property;
 
 	/// <summary>
-	/// The nullability information for the underlying property.
+	/// Creates new column information.
 	/// </summary>
-	private readonly NullabilityInfo nullability = nullabilityContext.Create(property);
+	/// <param name="property">The property information providing the column metadata.</param>
+	public ColumnInfo(PropertyInfo property) {
+		this.property = property;
+
+		var databaseGeneratedOption = property.GetCustomAttribute<DatabaseGeneratedAttribute>()?.DatabaseGeneratedOption ?? DatabaseGeneratedOption.None;
+		IsComputed = databaseGeneratedOption != DatabaseGeneratedOption.None;
+		IsIdentity = databaseGeneratedOption == DatabaseGeneratedOption.Identity;
+		IsNullable = Nullable.GetUnderlyingType(property.PropertyType) is not null || nullabilityContext.Create(property).WriteState != NullabilityState.NotNull;
+		Name = property.GetCustomAttribute<ColumnAttribute>()?.Name ?? property.Name;
+	}
 
 	/// <summary>
 	/// Gets the property value of a specified object.

src/Sql/Reflection/TableInfo.cs

@@ -7,7 +7,6 @@ namespace Belin.Sql.Reflection;
 /// <summary>
 /// Provides information about a database table.
 /// </summary>
-/// <param name="type">The type information providing the table metadata.</param>
 public sealed class TableInfo {
 
 	/// <summary>