LanguageClient: compress requests from the symbol cache

Change-Id: I58c6863fae6e275073c377558eaba18f7f32b4f2
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

1 files changed, 23 insertions, 13 deletions

diff --git a/src/plugins/languageclient/documentsymbolcache.cpp b/src/plugins/languageclient/documentsymbolcache.cpp
index 119cfad992f..21494a66936 100644
--- a/src/plugins/languageclient/documentsymbolcache.cpp
+++ b/src/plugins/languageclient/documentsymbolcache.cpp
@@ -50,24 +50,34 @@ DocumentSymbolCache::DocumentSymbolCache(Client *client)
             &Core::EditorManager::documentOpened,
             this,
             connectDocument);
+    m_compressionTimer.setSingleShot(true);
+    connect(&m_compressionTimer, &QTimer::timeout, this, &DocumentSymbolCache::requestSymbolsImpl);
 }
 
 void DocumentSymbolCache::requestSymbols(const DocumentUri &uri)
 {
-    auto entry = m_cache.find(uri);
-    if (entry != m_cache.end()) {
-        emit gotSymbols(uri, entry.value());
-        return;
-    }
+    m_compressedUris.insert(uri);
+    m_compressionTimer.start(200);
+}
+
+void DocumentSymbolCache::requestSymbolsImpl()
+{
+    for (const DocumentUri &uri : qAsConst(m_compressedUris)) {
+        auto entry = m_cache.find(uri);
+        if (entry != m_cache.end()) {
+            emit gotSymbols(uri, entry.value());
+            return;
+        }
 
-    const DocumentSymbolParams params((TextDocumentIdentifier(uri)));
-    DocumentSymbolsRequest request(params);
-    request.setResponseCallback([uri, self = QPointer<DocumentSymbolCache>(this)](
-                                    const DocumentSymbolsRequest::Response &response) {
-        if (self)
-            self->handleResponse(uri, response);
-    });
-    m_client->sendContent(request);
+        const DocumentSymbolParams params((TextDocumentIdentifier(uri)));
+        DocumentSymbolsRequest request(params);
+        request.setResponseCallback([uri, self = QPointer<DocumentSymbolCache>(this)](
+                                        const DocumentSymbolsRequest::Response &response) {
+            if (self)
+                self->handleResponse(uri, response);
+        });
+        m_client->sendContent(request);
+    }
 }
 
 void DocumentSymbolCache::handleResponse(const DocumentUri &uri,