How to get symbol name from a SymbolResult

@jonsequitur

I may be overlooking something obvious, or just have spaced on this...

I want to transform the ParseResult for combining with additional failures that will be grouped by symbol name.

I can get the SymbolResult from ParseResult.Errors.First().SymbolResult

However, I do not see how to get the Symbol from the SymbolResult (which seems odd enough I am pretty sure I have overlooked something).

@jonsequitur

SymbolResult is abstract. You can pattern match to the derived types like this and get their associated symbols like this:

command-line-api/src/System.CommandLine/ParseResult.cs

Lines 235 to 241 in e292617

    
           Symbol currentSymbol = currentSymbolResult switch 
        
           { 
        
               ArgumentResult argumentResult => argumentResult.Argument, 
        
               OptionResult optionResult => optionResult.Option, 
        
               DirectiveResult directiveResult => directiveResult.Directive, 
        
               _ => ((CommandResult)currentSymbolResult).Command 
        
           };

@jonsequitur

@jonsequitur Couldn't the SymbolResult have a Symbol property?

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How to get symbol name from a `SymbolResult` #2759

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	Symbol currentSymbol = currentSymbolResult switch
	{
	ArgumentResult argumentResult => argumentResult.Argument,
	OptionResult optionResult => optionResult.Option,
	DirectiveResult directiveResult => directiveResult.Directive,
	_ => ((CommandResult)currentSymbolResult).Command
	};

How to get symbol name from a SymbolResult #2759

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jonsequitur commented on Jan 13, 2026

cbersch commented on Mar 6, 2026

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How to get symbol name from a `SymbolResult` #2759