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// Copyright 2009-2022 Josh Close
// This file is a part of CsvHelper and is dual licensed under MS-PL and Apache 2.0.
// See LICENSE.txt for details or visit http://www.opensource.org/licenses/ms-pl.html for MS-PL and http://opensource.org/licenses/Apache-2.0 for Apache 2.0.
// https://github.com/JoshClose/CsvHelper
using System;
namespace CsvHelper
{
/// <summary>
/// Defines the functionality of a class that creates objects
/// from a given type.
/// </summary>
public interface IObjectResolver
{
/// <summary>
/// A value indicating if the resolver's <see cref="CanResolve"/>
/// returns false that an object will still be created using
/// CsvHelper's object creation. True to fallback, otherwise false.
/// Default value is true.
/// </summary>
bool UseFallback { get; }
/// <summary>
/// A value indicating if the resolver is able to resolve
/// the given type. True if the type can be resolved,
/// otherwise false.
/// </summary>
Func<Type, bool> CanResolve { get; }
/// <summary>
/// The function that creates an object from a given type.
/// </summary>
Func<Type, object[], object> ResolveFunction { get; }
/// <summary>
/// Creates an object from the given type using the <see cref="ResolveFunction"/>
/// function. If <see cref="CanResolve"/> is false, the object will be
/// created using CsvHelper's default object creation. If <see cref="UseFallback"/>
/// is false, an exception is thrown.
/// </summary>
/// <param name="type">The type to create an instance from. The created object
/// may not be the same type as the given type.</param>
/// <param name="constructorArgs">Constructor arguments used to create the type.</param>
object Resolve( Type type, params object[] constructorArgs );
/// <summary>
/// Creates an object from the given type using the <see cref="ResolveFunction"/>
/// function. If <see cref="CanResolve"/> is false, the object will be
/// created using CsvHelper's default object creation. If <see cref="UseFallback"/>
/// is false, an exception is thrown.
/// </summary>
/// <typeparam name="T">The type to create an instance from. The created object
/// may not be the same type as the given type.</typeparam>
/// <param name="constructorArgs">Constructor arguments used to create the type.</param>
T Resolve<T>( params object[] constructorArgs );
}
}
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