|
| 1 | +#nullable enable |
| 2 | +#if !NET |
| 3 | +using System.Diagnostics.CodeAnalysis; |
| 4 | +using System.Runtime.CompilerServices; |
| 5 | + |
| 6 | +namespace System |
| 7 | +{ |
| 8 | + internal static class ThrowExtensions |
| 9 | + { |
| 10 | + extension(ObjectDisposedException) |
| 11 | + { |
| 12 | + public static void ThrowIf(bool condition, object instance) |
| 13 | + { |
| 14 | + if (condition) |
| 15 | + { |
| 16 | + Throw(instance); |
| 17 | + |
| 18 | + static void Throw(object? instance) |
| 19 | + { |
| 20 | + throw new ObjectDisposedException(instance?.GetType().FullName); |
| 21 | + } |
| 22 | + } |
| 23 | + } |
| 24 | + } |
| 25 | + |
| 26 | + extension(ArgumentNullException) |
| 27 | + { |
| 28 | + public static void ThrowIfNull([NotNull] object? argument, [CallerArgumentExpression(nameof(argument))] string? paramName = null) |
| 29 | + { |
| 30 | + if (argument is null) |
| 31 | + { |
| 32 | + ThrowArgumentNullException(paramName); |
| 33 | + } |
| 34 | + |
| 35 | + [DoesNotReturn] |
| 36 | + static void ThrowArgumentNullException(string? paramName) |
| 37 | + { |
| 38 | + throw new ArgumentNullException(paramName); |
| 39 | + } |
| 40 | + } |
| 41 | + } |
| 42 | + |
| 43 | + extension(ArgumentException) |
| 44 | + { |
| 45 | + public static void ThrowIfNullOrWhiteSpace([NotNull] string? argument, [CallerArgumentExpression(nameof(argument))] string? paramName = null) |
| 46 | + { |
| 47 | + if (string.IsNullOrWhiteSpace(argument)) |
| 48 | + { |
| 49 | + Throw(argument, paramName); |
| 50 | + |
| 51 | + [DoesNotReturn] |
| 52 | + static void Throw(string? argument, string? paramName) |
| 53 | + { |
| 54 | + ThrowIfNull(argument, paramName); |
| 55 | + throw new ArgumentException("The value cannot be an empty string or composed entirely of whitespace.", paramName); |
| 56 | + } |
| 57 | + } |
| 58 | + } |
| 59 | + |
| 60 | + public static void ThrowIfNullOrEmpty([NotNull] string? argument, [CallerArgumentExpression(nameof(argument))] string? paramName = null) |
| 61 | + { |
| 62 | + if (string.IsNullOrEmpty(argument)) |
| 63 | + { |
| 64 | + Throw(argument, paramName); |
| 65 | + |
| 66 | + [DoesNotReturn] |
| 67 | + static void Throw(string? argument, string? paramName) |
| 68 | + { |
| 69 | + ThrowIfNull(argument, paramName); |
| 70 | + throw new ArgumentException("The value cannot be an empty string.", paramName); |
| 71 | + } |
| 72 | + } |
| 73 | + } |
| 74 | + } |
| 75 | + |
| 76 | + extension(ArgumentOutOfRangeException) |
| 77 | + { |
| 78 | + public static void ThrowIfNegative(long value, [CallerArgumentExpression(nameof(value))] string? paramName = null) |
| 79 | + { |
| 80 | + if (value < 0) |
| 81 | + { |
| 82 | + Throw(value, paramName); |
| 83 | + |
| 84 | + [DoesNotReturn] |
| 85 | + static void Throw(long value, string? paramName) |
| 86 | + { |
| 87 | + throw new ArgumentOutOfRangeException(paramName, value, "Value must be non-negative."); |
| 88 | + } |
| 89 | + } |
| 90 | + } |
| 91 | + } |
| 92 | + } |
| 93 | +} |
| 94 | +#endif |
0 commit comments