我有两个档案。其中一个是类声明,另一个是接口声明。类应该实现接口。如果类实现接口方法,我怎样才能检入NRefactory?
我应该提供更多细节。
第一个文件 - 例如:
class Test : IF
{
}
和第二个
interface IF
{
void Foo();
}
我必须阅读这些文件并使用NRefactory进行解析。我需要检查类Test是否从接口IF实现方法。
没有编译和加载编译的程序集。
答案 0 :(得分:3)
答案 1 :(得分:3)
我在NRefactory代码中找到了解决方案。我修改了这个以实现我的目标。首先,我们应该实现访问者,检查类是否从接口实现每个方法:
public class MissingInterfaceMemberImplementationVisitor : DepthFirstAstVisitor
{
private readonly CSharpAstResolver _resolver;
public bool IsInterfaceMemberMissing { get; private set; }
public MissingInterfaceMemberImplementationVisitor(CSharpAstResolver resolver)
{
_resolver = resolver;
IsInterfaceMemberMissing = false;
}
public override void VisitTypeDeclaration(TypeDeclaration typeDeclaration)
{
if (typeDeclaration.ClassType == ClassType.Interface || typeDeclaration.ClassType == ClassType.Enum)
return;
base.VisitTypeDeclaration(typeDeclaration);
var rr = _resolver.Resolve(typeDeclaration);
if (rr.IsError)
return;
foreach (var baseType in typeDeclaration.BaseTypes)
{
var bt = _resolver.Resolve(baseType);
if (bt.IsError || bt.Type.Kind != TypeKind.Interface)
continue;
bool interfaceMissing;
var toImplement = ImplementInterfaceAction.CollectMembersToImplement(rr.Type.GetDefinition(), bt.Type, false, out interfaceMissing);
if (toImplement.Count == 0)
continue;
IsInterfaceMemberMissing = true;
}
}
}
现在我们必须读取所有文件,解析它们并以下列方式调用上面的类:
var solutionFiles = new List<FileInfo>();
var trees = new Dictionary<FileInfo, SyntaxTree>();
IProjectContent projectContent = new CSharpProjectContent();
foreach (var file in solutionFiles.Where(f => f.Extension == ".cs").Distinct())
{
var parser = new ICSharpCode.NRefactory.CSharp.CSharpParser();
SyntaxTree syntaxTree;
using (var fs = new FileStream(file.FullName, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.SequentialScan))
{
syntaxTree = parser.Parse(fs, file.FullName);
}
trees.Add(file, syntaxTree);
var unresolvedFile = syntaxTree.ToTypeSystem();
projectContent = projectContent.AddOrUpdateFiles(unresolvedFile);
}
var compilation = projectContent.CreateCompilation();
foreach (var sharpFile in trees)
{
var originalResolver = new CSharpAstResolver(compilation, sharpFile.Value, sharpFile.Value.ToTypeSystem());
var visitor = new MissingInterfaceMemberImplementationVisitor(originalResolver);
sharpFile.Value.AcceptVisitor(visitor);
if (visitor.IsInterfaceMemberMissing)
return false;
}
return true;
答案 2 :(得分:2)
或者,您也可以使用as
关键字。
class MyClass { }
interface IInterface { }
MyClass instance = new MyClass();
var inst = instance as IInterface;
if (inst != null)
{
// your class implements the interface
}
如果您之后需要使用该实例而无需其他参考输入,请使用此选项。使用is
仍然需要
if (instance is IInterface)
{
var inst = (IInterface) instance;
}
或
(instance as IInterface).InstanceProperty
所以为什么不马上做。