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Making tuples pretty too

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This commit is contained in:
Phil Scott
2022-02-03 22:33:45 -05:00
committed by Patrik Svensson
parent e8eb5b85b9
commit 74a2e10ff0
5 changed files with 100 additions and 27 deletions
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77
src/Spectre.Console/Widgets/Exceptions/ExceptionFormatter.cs
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@@ -276,16 +276,85 @@ internal static class ExceptionFormatter
var prefix = GetPrefix(parameter);
var parameterType = parameter.ParameterType;
if (parameterType.IsByRef && parameterType.GetElementType() is { } elementType)
string typeName;
if (parameterType.IsGenericType && TryGetTupleName(parameter, parameterType, out var s))
{
parameterType = elementType;
typeName = s;
}
else
{
if (parameterType.IsByRef && parameterType.GetElementType() is { } elementType)
{
parameterType = elementType;
}
typeName = TypeNameHelper.GetTypeDisplayName(parameterType);
}
var typeName = TypeNameHelper.GetTypeDisplayName(parameterType, false, true);
return string.IsNullOrWhiteSpace(prefix) ? typeName : $"{prefix} {typeName}";
}
private static bool TryGetTupleName(ParameterInfo parameter, Type parameterType, [NotNullWhen(true)] out string? tupleName)
{
var customAttribs = parameter.GetCustomAttributes(inherit: false);
var tupleNameAttribute = customAttribs
.OfType<Attribute>()
.FirstOrDefault(a =>
{
var attributeType = a.GetType();
return attributeType.Namespace == "System.Runtime.CompilerServices" &&
attributeType.Name == "TupleElementNamesAttribute";
});
if (tupleNameAttribute != null)
{
var propertyInfo = tupleNameAttribute.GetType()
.GetProperty("TransformNames", BindingFlags.Instance | BindingFlags.Public)!;
var tupleNames = propertyInfo.GetValue(tupleNameAttribute) as IList<string>;
if (tupleNames?.Count > 0)
{
var args = parameterType.GetGenericArguments();
var sb = new StringBuilder();
sb.Append('(');
for (var i = 0; i < args.Length; i++)
{
if (i > 0)
{
sb.Append(", ");
}
sb.Append(TypeNameHelper.GetTypeDisplayName(args[i]));
if (i >= tupleNames.Count)
{
continue;
}
var argName = tupleNames[i];
sb.Append(' ');
sb.Append(argName);
}
sb.Append(')');
tupleName = sb.ToString();
return true;
}
}
else if (parameterType.Namespace == "System" && parameterType.Name.Contains("ValueTuple`"))
{
var args = parameterType.GetGenericArguments().Select(i => TypeNameHelper.GetTypeDisplayName(i));
tupleName = $"({string.Join(", ", args)})";
return true;
}
tupleName = null;
return false;
}
private static string GetMethodName(ref MethodBase method, out bool isAsync)
{
var declaringType = method.DeclaringType;