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Handle left Token being null in == and !=. #1802

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andrewimcclement wants to merge 2 commits into from
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Handle left Token being null in == and !=. #1802

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5815738
Handle left Token being null in == and !=.
andrewimcclement Jul 19, 2022
a49e856
Mark Token as sealed.
andrewimcclement Jul 19, 2022
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Handle left Token being null in == and !=.
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@andrewimcclement
andrewimcclement authored Jul 19, 2022
commit 5815738ef2156b64f1dfc8d2d0a2e76c3f3873e1
4 changes: 2 additions & 2 deletions src/System.CommandLine/Parsing/Token.cs
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Expand Up @@ -66,14 +66,14 @@ internal Token(string? value, TokenType type, Symbol? symbol, int position)
/// <param name="left">The first <see cref="Token"/>.</param>
/// <param name="right">The second <see cref="Token"/>.</param>
/// <returns><see langword="true" /> if the objects are equal.</returns>
public static bool operator ==(Token left, Token right) => left.Equals(right);
public static bool operator ==(Token left, Token right) => left?.Equals(right) ?? right is null;

/// <summary>
/// Checks if two specified <see cref="Token"/> instances have different values.
/// </summary>
/// <param name="left">The first <see cref="Token"/>.</param>
/// <param name="right">The second <see cref="Token"/>.</param>
/// <returns><see langword="true" /> if the objects are not equal.</returns>
public static bool operator !=(Token left, Token right) => !left.Equals(right);
public static bool operator !=(Token left, Token right) => !(left == right);
}
}