獲取 var 的型別
要獲取使用 var
宣告的變數的實際型別,請在 SemanticModel
上呼叫 GetSymbolInfo()
。你可以使用 MSBuildWorkspace
開啟現有解決方案,然後列舉其專案及其文件。使用文件獲取其 SyntaxRoot
和 SemanticModel
,然後查詢 VariableDeclarations
並檢索宣告變數的 Type
的符號,如下所示:
var workspace = MSBuildWorkspace.Create();
var solution = workspace.OpenSolutionAsync("c:\\path\\to\\solution.sln").Result;
foreach (var document in solution.Projects.SelectMany(project => project.Documents))
{
var rootNode = document.GetSyntaxRootAsync().Result;
var semanticModel = document.GetSemanticModelAsync().Result;
var variableDeclarations = rootNode
.DescendantNodes()
.OfType<LocalDeclarationStatementSyntax>();
foreach (var varDeclaration in variableDeclarations)
{
var symbolInfo = semanticModel.GetSymbolInfo(varDeclaration.Declaration.Type);
var typeSymbol = symbolInfo.Symbol; // the type symbol for the variable..
}
}