/
Guard.cs
75 lines (67 loc) · 2.31 KB
/
Guard.cs
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using System;
using System.Collections.Generic;
using System.Linq;
namespace FluentAssertions.Common
{
internal static class Guard
{
public static void ThrowIfArgumentIsNull<T>([ValidatedNotNull] T obj, string paramName)
{
if (obj is null)
{
throw new ArgumentNullException(paramName);
}
}
public static void ThrowIfArgumentIsNull<T>([ValidatedNotNull] T obj, string paramName, string message)
{
if (obj is null)
{
throw new ArgumentNullException(paramName, message);
}
}
public static void ThrowIfArgumentIsNullOrEmpty([ValidatedNotNull] string str, string paramName)
{
if (string.IsNullOrEmpty(str))
{
throw new ArgumentNullException(paramName);
}
}
public static void ThrowIfArgumentIsNullOrEmpty([ValidatedNotNull] string str, string paramName, string message)
{
if (string.IsNullOrEmpty(str))
{
throw new ArgumentNullException(paramName, message);
}
}
public static void ThrowIfArgumentIsOutOfRange<T>(T value, string paramName)
where T : Enum
{
if (!Enum.IsDefined(typeof(T), value))
{
throw new ArgumentOutOfRangeException(paramName);
}
}
public static void ThrowIfArgumentContainsNull<T>(IEnumerable<T> values, string paramName)
{
if (values.Any(t => t is null))
{
throw new ArgumentNullException(paramName, "Collection contains a null value");
}
}
public static void ThrowIfArgumentIsEmpty<T>(IEnumerable<T> values, string paramName, string message)
{
if (!values.Any())
{
throw new ArgumentException(message, paramName);
}
}
/// <summary>
/// Workaround to make dotnet_code_quality.null_check_validation_methods work
/// https://github.com/dotnet/roslyn-analyzers/issues/3451#issuecomment-606690452
/// </summary>
[AttributeUsage(AttributeTargets.Parameter)]
private sealed class ValidatedNotNullAttribute : Attribute
{
}
}
}