罗斯林:如何获得候选命名空间尚未解决的类型 [英] Roslyn: How to get candidate namespaces for unresolved types
问题描述
使用罗斯林,是有办法,我可以得到的候选名称空间的列表中的每个未解决的符号列表?如果是这样,是有办法,我可以做一个最佳匹配与模糊性的符号,它属于多种可能的命名空间?
Using Roslyn, is there a way I can get the list of candidate namespaces for each unresolved symbols in a list? If so, is there a way I can do a 'best match' for symbols with ambiguity, which belong to multiple possible namespaces?
我想用生成在文件中未解决的符号语句列表。我能够使用如罗斯林办法的语义信息获取的未解决的符号:如何让未解决的类型的,但不能找到一种方法,在其命名空间从引用的程序集的项目,这些符号到达。
I would like to generate a list of using statements for the unresolved symbols in a file. I am able to get the unresolved symbols from the semantic information using an approach like Roslyn : How to get unresolved types, but could not find a way to arrive at the namespaces for these symbols from the referenced assemblies in the project.
推荐答案
我掠过罗斯林回购,它看起来像他们所使用的 SymbolFinder
来检索信息时,他们认为,用户缺少使用
:请参见<一href="https://github.com/dotnet/roslyn/blob/03e30451ce7eb518e364b5806c524623424103e4/src/Features/Core/$c$cFixes/Async/AbstractAddAsync$c$cFixProvider.cs#L40-L49"相对=nofollow>这里
I skimmed the Roslyn Repo and it looks like they use the SymbolFinder
to retrieve information when they believe the user is missing a using
: See here.
对于寻找最佳的比赛,我相信这件事情你必须根据你认为什么是最好的匹配来实现。 Visual Studio中只显示你所有的候选使用
语句。
As for finding the "best" match, I believe that's something you'll have to implement according to what you consider to be the "best" match. Visual Studio simply shows you all candidate using
statements.
下面是一个示例我扔一起快速地展示 SymbolFinder
:
Here's a sample I threw together quickly to demonstrate SymbolFinder
:
var ws = new AdhocWorkspace();
var solutionInfo = SolutionInfo.Create(SolutionId.CreateNewId();, VersionStamp.Create());
var solution = ws.AddSolution(solutionInfo);
var project = ws.AddProject("Sample", "C#");
//Add reference to mscorlib
var mscorlib = PortableExecutableReference.CreateFromAssembly(typeof(object).Assembly);
project = project.AddMetadataReference(mscorlib);
ws.TryApplyChanges(project.Solution);
string text = @"
class C
{
void M()
{
//Missing a using System;
Console.Write();
}
}";
var sourceText = SourceText.From(text);
//Add document to project
var doc = ws.AddDocument(project.Id, "NewDoc", sourceText);
var model = doc.GetSemanticModelAsync().Result;
var unresolved = doc.GetSyntaxRootAsync().Result.DescendantNodes().OfType<IdentifierNameSyntax>()
.Where(x => model.GetSymbolInfo(x).Symbol == null);
foreach (var identifier in unresolved)
{
var candidateUsings = SymbolFinder.FindDeclarationsAsync(doc.Project, identifier.Identifier.ValueText, ignoreCase: false).Result;
//Process candidate usings...
}
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