✨ feat(vscode): 代码阅读预览单击名字高亮它在文件里的各处出现

vscode/src/codeReader/editor/previewEditor.ts

@@ -11,6 +11,7 @@ import { blockReplacement } from '../editText'
 import { definitionAction } from './definitionAction'
 import { findDefinitions, hasDefinition, pickDefinition } from './definitions'
 import { documentMessage } from './documentMessage'
+import { occurrencesOf } from './occurrences'
 
 export const PREVIEW_VIEW_TYPE = 'superpowers.codeReader.preview'
 
@@ -197,9 +198,22 @@ class Preview {
         return
       case 'goToDefinition':
         await this.goToDefinition(msg.version, msg.offset)
+        return
+      case 'findOccurrences':
+        await this.findOccurrences(msg.id, msg.version, msg.offset)
     }
   }
 
+  /** 回答 webview 第 id 次询问：offset 处的名字在这份文档里出现在哪几处。下标属于别的文档版本时不答，webview 换了文档版本会清掉高亮 */
+  private async findOccurrences(id: number, version: number, offset: number): Promise<void> {
+    const { document } = this
+    if (version !== document.version)
+      return
+    const occurrences = await occurrencesOf(document, offset)
+    if (version === document.version && this.ready)
+      this.post({ type: 'occurrencesFound', id, occurrences })
+  }
+
   /** 回答 webview 第 id 次询问：offset 处的名字有没有定义。下标属于别的文档版本时不答，webview 收到新文档后会重新问 */
   private async probeDefinition(id: number, version: number, offset: number): Promise<void> {
     const { document } = this