从 VSIX 命令调用 Roslyn [英] calling Roslyn from VSIX command

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本文介绍了从 VSIX 命令调用 Roslyn的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

从 EnvDTE.ProjectItem 获取 Roslyn 的 SyntaxTree 的最佳方法是什么?我找到了另一种方法(Roslyn's Document into ProjectItem).

What is best way to obtain Roslyn's SyntaxTree from EnvDTE.ProjectItem? I found some method for the other way (Roslyn's Document into ProjectItem).

我从打开的文档中调用了 VSIX 命令,我想在那里试验 Roslyn 的语法树.

I got VSIX command called from opened document and I'd like to experiment with Roslyn's syntax tree there.

此代码有效,但对我来说看起来很尴尬:

This code works, but looks awkward to me:

    var pi = GetProjectItem();
    var piName = pi.get_FileNames(1);

    var componentModel = (IComponentModel)Microsoft.VisualStudio.Shell.Package.GetGlobalService(typeof(SComponentModel));
    var workspace = componentModel.GetService<Microsoft.VisualStudio.LanguageServices.VisualStudioWorkspace>();
    var ids = workspace.GetOpenDocumentIds();
    var id1 = ids.First(id => workspace.GetFilePath(id) == piName);

        Microsoft.CodeAnalysis.Solution sln = workspace.CurrentSolution;
        var doc = sln.GetDocument(id1);
        //var w = await doc.GetSyntaxTreeAsync();
        Microsoft.CodeAnalysis.SyntaxTree syntaxTree;
        if (doc.TryGetSyntaxTree(out syntaxTree))

是否有更好的方法从活动文档中获取 Roslyn 的文档?

Is there better way to get Roslyn's Document from active document?

推荐答案

您可以使用 workspace.CurrentSolution.GetDocumentIdsWithFilePath() 获取与文件路径匹配的 DocumentId.从中您可以使用 workspace.CurrentSolution.GetDocument()

You can use workspace.CurrentSolution.GetDocumentIdsWithFilePath() to get the DocumentId(s) matching a file path. From that you can get the document itself using workspace.CurrentSolution.GetDocument()

private Document GetActiveDocument()
{
    var dte = Package.GetGlobalService(typeof(DTE)) as DTE;
    var activeDocument = dte?.ActiveDocument;
    if (activeDocument == null) return null;

    var componentModel = (IComponentModel)Package.GetGlobalService(typeof(SComponentModel));
    var workspace = (Workspace) componentModel.GetService<VisualStudioWorkspace>();

    var documentid = workspace.CurrentSolution.GetDocumentIdsWithFilePath(activeDocument.FullName).FirstOrDefault();
    if (documentid == null) return null;

    return workspace.CurrentSolution.GetDocument(documentid);
}

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