如何使用 Roslyn 获取范围内所有可见的局部变量名称(Microsoft CodeAnalysis) [英] How to get all visible local variable names within a scope with Roslyn (Microsoft CodeAnalysis)

问题描述

(请注意:这与运行时反射/元信息无关)

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

我正在编写 Roslyn CSharpSyntaxVisitor 的具体实现

I am writing a concrete implementation of Roslyn CSharpSyntaxVisitor

实施 VisitIdentifierName 时

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.
   }
}

推荐答案

调用 SemanticModel.LookupSymbols() (source)，然后过滤局部变量.

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

您可能还想过滤掉在该位置之后声明的本地人；见 noref="n2422"/a>.

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

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