In Roslyn ToMinimalDisplayString method, what does 'position' argument mean?

Question

I'm looking at this method in ISymbol:

string ToMinimalDisplayString(SemanticModel semanticModel, int position, SymbolDisplayFormat format = null);

The documentation says that position is "A position in the source code (context)." What is the unit of measure of position? Is it a line number? In other words, can I use this value:

mySyntaxTree.GetLocation(myNode.Span).GetLineSpan().StartLinePosition.Line;

Edit: Some non-definitive experimenting suggests that it is not a line number, because when I use the above value, the method does not remove unnecessary namespaces. But the following value seems to give the right behaviour:

myNode.Span.Start;

Jason Malinowski · Accepted Answer · 2023-07-05 22:49:11Z

2

As you did figure out the "position" is the zero-based index of characters like our start/end span. The API never really accepts lines for the most part, since those are generally user-displayed only.

answered Jul 5, 2023 at 22:49

Jason Malinowski

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