add Hover feature

client/src/extension.ts

@@ -1,41 +1,53 @@
-import * as vscode from "vscode";
-import { formatCdlFile, completionHandler } from "./common/handlers";
+import * as vscode from "vscode"
+import { formatCdlFile, completionHandler, hoverHandler } from "./common/handlers"
 
 export function activate(context: vscode.ExtensionContext) {
-  const disposable = vscode.languages.registerDocumentFormattingEditProvider(
-    { scheme: "file", language: "cdl" },
-    {
-      provideDocumentFormattingEdits(
-        document: vscode.TextDocument
-      ): vscode.TextEdit[] {
-        const text = document.getText();
-        const formattedText = formatCdlFile(text);
-        const fullRange = new vscode.Range(
-          document.positionAt(0),
-          document.positionAt(text.length)
-        );
-        return [vscode.TextEdit.replace(fullRange, formattedText)];
-      },
-    }
-  );
+    const formatProvider = vscode.languages.registerDocumentFormattingEditProvider(
+        { scheme: "file", language: "cdl" },
+        {
+            provideDocumentFormattingEdits(document: vscode.TextDocument): vscode.TextEdit[] {
+                const text = document.getText()
+                const formattedText = formatCdlFile(text)
+                const fullRange = new vscode.Range(
+                    document.positionAt(0),
+                    document.positionAt(text.length)
+                )
+                return [vscode.TextEdit.replace(fullRange, formattedText)]
+            }
+        }
+    )
 
-  context.subscriptions.push(disposable);
+    context.subscriptions.push(formatProvider)
 
-  const completionProvider = vscode.languages.registerCompletionItemProvider(
-    { scheme: "file", language: "cdl" },
-    {
-      provideCompletionItems(
-        document: vscode.TextDocument,
-        position: vscode.Position,
-        token: vscode.CancellationToken,
-        context: vscode.CompletionContext
-      ) {
-        return completionHandler(document, position);
-      },
-    },
-    " " // Trigger completion on space
-  );
-  context.subscriptions.push(completionProvider);
+    const completionProvider = vscode.languages.registerCompletionItemProvider(
+        { scheme: "file", language: "cdl" },
+        {
+            provideCompletionItems(
+                document: vscode.TextDocument,
+                position: vscode.Position,
+                token: vscode.CancellationToken,
+                context: vscode.CompletionContext
+            ) {
+                return completionHandler(document, position)
+            }
+        },
+        " " // Trigger completion on space
+    )
+    context.subscriptions.push(completionProvider)
+
+    const hoverProvider = vscode.languages.registerHoverProvider(
+        { scheme: "file", language: "cdl" },
+        {
+            provideHover(
+                document: vscode.TextDocument,
+                position: vscode.Position,
+                token: vscode.CancellationToken
+            ) {
+                return hoverHandler(document, position)
+            }
+        }
+    )
+    context.subscriptions.push(hoverProvider)
 }
 
 export function deactivate() {}