CSharpSyntaxRewriter.VisitUndefDirectiveTrivia 方法      
定义
重要
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public:
 override Microsoft::CodeAnalysis::SyntaxNode ^ VisitUndefDirectiveTrivia(Microsoft::CodeAnalysis::CSharp::Syntax::UndefDirectiveTriviaSyntax ^ node);public override Microsoft.CodeAnalysis.SyntaxNode VisitUndefDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.UndefDirectiveTriviaSyntax node);public override Microsoft.CodeAnalysis.SyntaxNode? VisitUndefDirectiveTrivia(Microsoft.CodeAnalysis.CSharp.Syntax.UndefDirectiveTriviaSyntax node);override this.VisitUndefDirectiveTrivia : Microsoft.CodeAnalysis.CSharp.Syntax.UndefDirectiveTriviaSyntax -> Microsoft.CodeAnalysis.SyntaxNodePublic Overrides Function VisitUndefDirectiveTrivia (node As UndefDirectiveTriviaSyntax) As SyntaxNode