/// <summary>
/// Require that the given value is null. If 'value' is not null, throws an exception of
/// the given type.
/// </summary>
/// <typeparam name="TException">The type of the exception to throw.</typeparam>
/// <param name="value">The value that must not be null.</param>
public static void IsNull <TException>(object value)
where TException : Exception, new()
{
Precond.Requires <TException>(value == null);
}
/// <summary>
/// Require that the given value is null. If 'value' is not null, throws an exception of
/// the given type.
/// </summary>
/// <typeparam name="TException">The type of the exception to throw.</typeparam>
/// <param name="value">The value that must not be null.</param>
/// <param name="message">A message included if the exception is thrown.</param>
public static void IsNull <TException>(object value, string message)
where TException : Exception, new()
{
Precond.Requires <TException>(value == null, message);
}
/// <summary>
/// Require that the given value is null. If 'value' is not null, throws an
/// InvalidOperationException.
/// </summary>
/// <param name="value">value that must not be null.</param>
/// <param name="message">A message included if the exception is thrown.</param>
public static void IsNull(object value, string message)
{
Precond.Requires <InvalidOperationException>(value == null, message);
}
/// <summary>
/// Require that the given value is null. If 'value' is not null, throws an
/// InvalidOperationException.
/// </summary>
/// <param name="value">Value that must be null.</param>
public static void IsNull(object value)
{
Precond.Requires <InvalidOperationException>(value == null);
}
/// <summary>
/// Require that the given value is not null. If 'value' is null, throws an
/// ArgumentNullException.
/// </summary>
/// <param name="value">value that must not be null.</param>
/// <param name="paramName">name of the parameter that holds 'value'.</param>
public static void IsNotNull(object value, string paramName)
{
Precond.Requires <ArgumentNullException>(value != null, paramName);
}
/// <summary>
/// Require that the given value is not null. If 'value' is null, throws an
/// ArgumentNullException.
/// </summary>
/// <param name="value">Value that must not be null.</param>
public static void IsNotNull(object value)
{
Precond.Requires <ArgumentNullException>(value != null);
}
/// <summary>
/// Require that the given predicate is true. If 'predicate' is false, throws an
/// InvalidOperationException.
/// </summary>
/// <param name="predicate">The bool that must be true.</param>
public static void Requires(bool predicate, string message)
{
Precond.Requires <InvalidOperationException>(predicate, message);
}
