Add TitanTypeHierarchyProvider (issue #12)

Signed-off-by: Csilla Farkas csilla.farkas@sigmatechnology.com

src/client/ClientManager.ts

@@ -10,7 +10,7 @@
 */
 
 import { LanguageClient, ResponseError, TextDocumentIdentifier } from "vscode-languageclient/node";
-import { window, Position, Uri} from "vscode";
+import { window, Position, Uri, TypeHierarchyItem} from "vscode";
 import client from "./titanClient";
 import { docCommentViewProvider } from "../view/DocCommentViewProvider";
 import * as md from 'markdown-it';
@@ -22,7 +22,9 @@ class ClientManager {
         exclude: 'titan/setExcludedState',
         openTpd: 'titan/openTpd',
         generateDocComment: 'titan/generateDocumentComment',
-        prepareTypeHierarchy:  'textDocument/prepareTypeHierarchy'
+        prepareTypeHierarchy:  'textDocument/prepareTypeHierarchy',
+        supertypesTypeHierarchy: 'typeHierarchy/supertypes',
+        subtypesTypeHierarchy: 'typeHierarchy/subtypes'
     };
 
     constructor(private _client: LanguageClient) {};
@@ -65,6 +67,16 @@ class ClientManager {
         const typeHierarchyItems = await this._client.sendRequest(this._methods.prepareTypeHierarchy, requestParams);
         return typeHierarchyItems;
     }
+
+    public async resolveSupertypes(requestParams: {item: TypeHierarchyItem }) {
+        const supertypesResult = await this._client.sendRequest(this._methods.supertypesTypeHierarchy, requestParams);
+        return supertypesResult;
+    }
+
+    public async resolveSubtypes(requestParams: {item: TypeHierarchyItem}) {
+        const subtypeResult = await this._client.sendRequest(this._methods.subtypesTypeHierarchy, requestParams);
+        return subtypeResult;
+    }
 }
 
 export const clientManager = new ClientManager(client);
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