When importing doc from comment xml, we should clean up existing <al…wo

mdoc/Mono.Documentation/MDocUpdater.cs

@@ -3391,17 +3391,22 @@ private void MakeDocNode (DocsNodeInfo info, IEnumerable<DocumentationImporter>
                 }
             }
             else
-            {
-                if (DocUtils.NeedsOverwrite(e["returns"]))
-                {
-                    if (CheckRemoveByImporter("returns"))
-                        ClearElement(e, "returns");
-                }
-                if (DocUtils.NeedsOverwrite(e["value"]))
+            {
+                var commMemberKeys = new string[] { "returns", "value", "related" };
+                for (int i = 0; i < commMemberKeys.Length; i++)
                 {
-                    if (CheckRemoveByImporter("value"))
-                        ClearElement(e, "value");
-                }
+                    if (DocUtils.NeedsOverwrite(e[commMemberKeys[i]]))
+                        if (DocUtils.CheckRemoveByImporter(info, commMemberKeys[i], importers, setimporters))
+                            ClearElement(e, commMemberKeys[i]);
+                }
+
+                var altMemberKeys = new string[] { "altmember", "seealso" };
+                for (int i = 0; i < altMemberKeys.Length; i++)
+                 {
+                    if (DocUtils.NeedsOverwrite(e["altmember"]))
+                        if (DocUtils.CheckRemoveByImporter(info, altMemberKeys[i], importers, setimporters))
+                            ClearElement(e, "altmember");
+                 }               
             }
 
             if (addremarks)

mdoc/Mono.Documentation/Updater/DocUtils.cs

@@ -891,5 +891,25 @@ public static List<GenericParameter> GetGenericParameters(TypeDefinition type)
             }
             return assemblyDelList;
         }
+
+        public static bool CheckRemoveByImporter(DocsNodeInfo info, string keyName, List<DocumentationImporter> DocImports, IEnumerable<DocumentationImporter> SetImports)
+        {
+            foreach (DocumentationImporter i in DocImports)
+            {
+                if (i.CheckRemoveByMapping(info, keyName))
+                    return true;
+            }
+
+            if (SetImports != null)
+            {
+                foreach (var i in SetImports)
+                {
+                    if (i.CheckRemoveByMapping(info, keyName))
+                        return true;
+                }
+            }
+
+            return false;
+        }
     }
 }

mdoc/Mono.Documentation/Updater/MsxdocDocumentationImporter.cs

@@ -8,7 +8,7 @@
 
 namespace Mono.Documentation.Updater
 {
-    class MsxdocDocumentationImporter : DocumentationImporter
+   public class MsxdocDocumentationImporter : DocumentationImporter
     {
         XmlDocument slashdocs;
         Dictionary<string, XmlNode> slashdocsMapping = new Dictionary<string, XmlNode>();

mdoc/mdoc.Test/MDocUpdaterTests.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Xml;
@@ -156,5 +157,31 @@ private List<XmlElement> UpdateXml(string XmlNodeName, MemberReference mi)
 
             return returnValue;
         }
+
+        [Test]
+        public void Update_ImportDoc_Test()
+        {
+            List<DocumentationImporter> setimporters = new List<DocumentationImporter>();
+            List<DocumentationImporter> importers = new List<DocumentationImporter>();
+            var filePath = Path.Combine(Path.GetDirectoryName(this.GetType().Module.Assembly.Location), "SampleClasses\\testImportDoc.xml");
+            MsxdocDocumentationImporter importer = new MsxdocDocumentationImporter(
+                 filePath);
+            setimporters.Add(importer);
+
+            XmlDocument doc = new System.Xml.XmlDocument();
+            doc.LoadXml(XmlConsts.internalEllXml);
+
+            var type = GetType(typeof(mdoc.Test2.InternalEIICalss));
+            var docEnum = new DocumentationEnumerator();
+
+            var nodeMember = docEnum.GetDocumentationMembers(doc, type, FrameworkTypeEntry.Empty).FirstOrDefault(t => t.Member.FullName == "System.String mdoc.Test2.InternalEIICalss::Getstring(System.Int32)");
+
+            var testKeys = new string[] { "returns", "value", "related", "seealso" };
+
+            for (int i = 0; i < testKeys.Length; i++)
+            {
+                Assert.IsTrue(DocUtils.CheckRemoveByImporter(nodeMember, testKeys[i], importers, setimporters));
+            }
+        }
     }
 }

mdoc/mdoc.Test/mdoc.Test.csproj

@@ -160,6 +160,10 @@
       <Link>SampleClasses\cppcli.dll</Link>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="SampleClasses\testImportDoc.xml">
+      <Link>SampleClasses\testImportDoc.xml</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
   </ItemGroup>
   <ItemGroup />
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />