How to get all visible local variable names within a scope with Roslyn (Microsoft CodeAnalysis)

问题

(Please note: This is not about run-time reflection/metainfo)

I am writing a concrete implementation of Roslyn CSharpSyntaxVisitor

When implementing the VisitIdentifierName

public override SyntaxNode VisitIdentifierName(IdentifierNameSyntax name)
{
   var symbolInfo = _semanticModel.GetSymbolInfo(name);
   var fieldSymbol = symbolInfo.Symbol as IFieldSymbol;
   if (fieldSymbol != null)
   {
       // Here I would like to get all the local variable names what are visible
       // in the very same scope where this field IdentifierNameSyntax under visiting resides
       // We can suppose that _semanticNodel for the Document is available.
   }
}

回答1:

Call SemanticModel.LookupSymbols(), then filter for local variables.

You may also want to filter out locals declared after that location; see this code.

来源：https://stackoverflow.com/questions/23539872/how-to-get-all-visible-local-variable-names-within-a-scope-with-roslyn-microsof