使用Roslyn来解析类函数和属性

我是Roslyn的新手，我正在尝试解析cs文件并获取函数和属性。

API示例

//won't work any more var tree = SyntaxTree.ParseText(...); var tree = SyntaxTree.ParseFle(...); var root = tree.Root; 

API似乎已经改变，它将不再起作用。 猜猜它只适用于2012 Roslyn CTP，只看它的外观。

然后我尝试新的例子：

 //won't work neither var compilation = CSharpCompilation.Create("HelloWorld") .AddReferences( new MetadataFileReference( typeof(object).Assembly.Location)) .AddSyntaxTrees(tree); var tree = CSharpSyntaxTree.ParseText(strSourceCode); var root = tree.GetRoot(); 

同样，它将不再起作用，因为MetadataFileReference是我得到的Roslyn版本中的抽象类。 API又改变了吗？ 我不确定。

VS＆Packages

我在我的公司电脑上使用VS2013 PRO UPDATE 2。 2015年7月5日至今。 不，我没有配备VS2015的电脑，我不确定这是否重要。

我打开一个新的WinForm项目，然后在NuGet PM中按照https://github.com/dotnet/roslyn的指示安装了Roslyn。 这是我的安装日志：

 PM> Install-Package Microsoft.CodeAnalysis -Pre Attempting to resolve dependency 'Microsoft.CodeAnalysis.CSharp.Workspaces (= 1.0.0-rc3)'. Attempting to resolve dependency 'Microsoft.CodeAnalysis.CSharp (= 1.0.0-rc3)'. Attempting to resolve dependency 'Microsoft.CodeAnalysis.Common (= 1.0.0-rc3)'. Attempting to resolve dependency 'System.Collections.Immutable (≥ 1.1.36)'. Attempting to resolve dependency 'System.Reflection.Metadata (≥ 1.0.21)'. Attempting to resolve dependency 'Microsoft.CodeAnalysis.Analyzers (= 1.0.0-rc3)'. Attempting to resolve dependency 'Microsoft.CodeAnalysis.Workspaces.Common (= 1.0.0-rc3)'. Attempting to resolve dependency 'Microsoft.Composition (≥ 1.0.27)'. Attempting to resolve dependency 'Microsoft.CodeAnalysis.VisualBasic.Workspaces (= 1.0.0-rc3)'. Attempting to resolve dependency 'Microsoft.CodeAnalysis.VisualBasic (= 1.0.0-rc3)'. Installing 'System.Collections.Immutable 1.1.36'. You are downloading System.Collections.Immutable from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=329770. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'System.Collections.Immutable 1.1.36'. Installing 'System.Reflection.Metadata 1.0.21'. You are downloading System.Reflection.Metadata from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=329770. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'System.Reflection.Metadata 1.0.21'. Installing 'Microsoft.CodeAnalysis.Analyzers 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis.Analyzers from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis.Analyzers 1.0.0-rc3'. Installing 'Microsoft.CodeAnalysis.Common 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis.Common from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis.Common 1.0.0-rc3'. Installing 'Microsoft.CodeAnalysis.CSharp 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis.CSharp from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis.CSharp 1.0.0-rc3'. Installing 'Microsoft.Composition 1.0.27'. You are downloading Microsoft.Composition from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=329770. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.Composition 1.0.27'. Installing 'Microsoft.CodeAnalysis.Workspaces.Common 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis.Workspaces.Common from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis.Workspaces.Common 1.0.0-rc3'. Installing 'Microsoft.CodeAnalysis.CSharp.Workspaces 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis.CSharp.Workspaces from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis.CSharp.Workspaces 1.0.0-rc3'. Installing 'Microsoft.CodeAnalysis.VisualBasic 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis.VisualBasic from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis.VisualBasic 1.0.0-rc3'. Installing 'Microsoft.CodeAnalysis.VisualBasic.Workspaces 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis.VisualBasic.Workspaces from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis.VisualBasic.Workspaces 1.0.0-rc3'. Installing 'Microsoft.CodeAnalysis 1.0.0-rc3'. You are downloading Microsoft.CodeAnalysis from Microsoft, the license agreement to which is available at http://go.microsoft.com/fwlink/?LinkId=529443. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device. Successfully installed 'Microsoft.CodeAnalysis 1.0.0-rc3'. Adding 'System.Collections.Immutable 1.1.36' to MyWinForm. Successfully added 'System.Collections.Immutable 1.1.36' to MyWinForm. Adding 'System.Reflection.Metadata 1.0.21' to MyWinForm. Successfully added 'System.Reflection.Metadata 1.0.21' to MyWinForm. Adding 'Microsoft.CodeAnalysis.Analyzers 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis.Analyzers 1.0.0-rc3' to MyWinForm. Adding 'Microsoft.CodeAnalysis.Common 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis.Common 1.0.0-rc3' to MyWinForm. Adding 'Microsoft.CodeAnalysis.CSharp 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis.CSharp 1.0.0-rc3' to MyWinForm. Adding 'Microsoft.Composition 1.0.27' to MyWinForm. Successfully added 'Microsoft.Composition 1.0.27' to MyWinForm. Adding 'Microsoft.CodeAnalysis.Workspaces.Common 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis.Workspaces.Common 1.0.0-rc3' to MyWinForm. Adding 'Microsoft.CodeAnalysis.CSharp.Workspaces 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis.CSharp.Workspaces 1.0.0-rc3' to MyWinForm. Adding 'Microsoft.CodeAnalysis.VisualBasic 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis.VisualBasic 1.0.0-rc3' to MyWinForm. Adding 'Microsoft.CodeAnalysis.VisualBasic.Workspaces 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis.VisualBasic.Workspaces 1.0.0-rc3' to MyWinForm. Adding 'Microsoft.CodeAnalysis 1.0.0-rc3' to MyWinForm. Successfully added 'Microsoft.CodeAnalysis 1.0.0-rc3' to MyWinForm. 

我的目标

我只是想：

1. 读取cs文件，或将某些源字符串读入编译器。
2. 解析出类名和函数属性名。
3. 解析函数和属性及其参数和返回类型。

我可以举一些工作实例吗？

Answer 1

这里有几件事：

我强烈建议您使用Visual Studio 2015进行Roslyn相关任务。 Roslyn的某些部分依赖于VS 2015和最新的MSBuild工具。 Visual Studio 2015社区也是免费的！

注意：我还建议使用NuGet的rc-2位，而不是rc-3位。 你已经在一个奇怪的时间（中间版本）进入了罗斯林世界，这将使你的生活更加轻松，直到VS2015于7月20日发货。

使用以下命令从NuGet安装：

 Install-Package Microsoft.CodeAnalysis -Version 1.0.0-rc2 -Pre 

在以下中使用CreateFromAssembly ：

 var tree = CSharpSyntaxTree.ParseText(@" class TestClass { void TestMethod () { int i; } }"); var Mscorlib = MetadataReference.CreateFromAssembly(typeof(object).Assembly); var compilation = CSharpCompilation.Create("MyCompilation", syntaxTrees: new[] { tree }, references: new[] { Mscorlib }); var model = compilation.GetSemanticModel(tree);