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Use slightly smaller code for String.Concat(object, object, ...) #44133

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Merged
merged 1 commit into from
Nov 2, 2020
Merged

Use slightly smaller code for String.Concat(object, object, ...) #44133

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39 changes: 6 additions & 33 deletions src/libraries/System.Private.CoreLib/src/System/String.Manipulation.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,41 +30,14 @@ private static void FillStringChecked(string dest, int destPos, string src)
elementCount: (uint)src.Length);
}

public static string Concat(object? arg0) => arg0?.ToString() ?? string.Empty;
public static string Concat(object? arg0) =>
arg0?.ToString() ?? Empty;

public static string Concat(object? arg0, object? arg1)
{
if (arg0 == null)
{
arg0 = string.Empty;
}

if (arg1 == null)
{
arg1 = string.Empty;
}
return Concat(arg0.ToString(), arg1.ToString());
}

public static string Concat(object? arg0, object? arg1, object? arg2)
{
if (arg0 == null)
{
arg0 = string.Empty;
}

if (arg1 == null)
{
arg1 = string.Empty;
}
public static string Concat(object? arg0, object? arg1) =>
Concat(arg0?.ToString(), arg1?.ToString());

if (arg2 == null)
{
arg2 = string.Empty;
}

return Concat(arg0.ToString(), arg1.ToString(), arg2.ToString());
}
public static string Concat(object? arg0, object? arg1, object? arg2) =>
Concat(arg0?.ToString(), arg1?.ToString(), arg2?.ToString());

public static string Concat(params object?[] args)
{
Expand Down