diff --git a/src/plugins/clangcodemodel/clangdclient.cpp b/src/plugins/clangcodemodel/clangdclient.cpp
index db7f1e5798c..97a31fa0fdb 100644
--- a/src/plugins/clangcodemodel/clangdclient.cpp
+++ b/src/plugins/clangcodemodel/clangdclient.cpp
@@ -2525,7 +2525,7 @@ static void semanticHighlighter(QFutureInterface<HighlightingResult> &future,
                                 const Utils::FilePath &filePath,
                                 const QList<ExpandedSemanticToken> &tokens,
                                 const QString &docContents, const AstNode &ast,
-                                const QPointer<TextEditorWidget> &widget,
+                                const QPointer<TextDocument> &textDocument,
                                 int docRevision, const QVersionNumber &clangdVersion)
 {
     ThreadedSubtaskTimer t("highlighting");
@@ -2677,9 +2677,9 @@ static void semanticHighlighter(QFutureInterface<HighlightingResult> &future,
 
     auto results = QtConcurrent::blockingMapped<HighlightingResults>(tokens, toResult);
     const QList<BlockRange> ifdefedOutBlocks = cleanupDisabledCode(results, &doc, docContents);
-    QMetaObject::invokeMethod(widget, [widget, ifdefedOutBlocks, docRevision] {
-        if (widget && widget->textDocument()->document()->revision() == docRevision)
-            widget->setIfdefedOutBlocks(ifdefedOutBlocks);
+    QMetaObject::invokeMethod(textDocument, [textDocument, ifdefedOutBlocks, docRevision] {
+        if (textDocument && textDocument->document()->revision() == docRevision)
+            textDocument->setIfdefedOutBlocks(ifdefedOutBlocks);
     }, Qt::QueuedConnection);
     ExtraHighlightingResultsCollector(future, results, filePath, ast, &doc, docContents).collect();
     if (!future.isCanceled()) {
@@ -2756,10 +2756,9 @@ void ClangdClient::Private::handleSemanticTokens(TextDocument *doc,
 
         const auto runner = [tokens, filePath = doc->filePath(),
                              text = doc->document()->toPlainText(), ast,
-                             w = QPointer<TextEditorWidget>(widgetFromDocument(doc)),
-                             rev = doc->document()->revision(),
+                             doc = QPointer(doc), rev = doc->document()->revision(),
                              clangdVersion = q->versionNumber()] {
-            return Utils::runAsync(semanticHighlighter, filePath, tokens, text, ast, w, rev,
+            return Utils::runAsync(semanticHighlighter, filePath, tokens, text, ast, doc, rev,
                                    clangdVersion);
         };
 
diff --git a/src/plugins/cppeditor/cppeditorwidget.cpp b/src/plugins/cppeditor/cppeditorwidget.cpp
index 6ef037d36be..8c9887b1de2 100644
--- a/src/plugins/cppeditor/cppeditorwidget.cpp
+++ b/src/plugins/cppeditor/cppeditorwidget.cpp
@@ -670,7 +670,7 @@ void CppEditorWidget::onIfdefedOutBlocksUpdated(unsigned revision,
 {
     if (revision != documentRevision())
         return;
-    setIfdefedOutBlocks(ifdefedOutBlocks);
+    textDocument()->setIfdefedOutBlocks(ifdefedOutBlocks);
 }
 
 void CppEditorWidget::onShowInfoBarAction(const Id &id, bool show)
diff --git a/src/plugins/texteditor/textdocument.cpp b/src/plugins/texteditor/textdocument.cpp
index 9462b06b829..4376cc17398 100644
--- a/src/plugins/texteditor/textdocument.cpp
+++ b/src/plugins/texteditor/textdocument.cpp
@@ -484,6 +484,56 @@ bool TextDocument::applyChangeSet(const ChangeSet &changeSet)
     return file->apply();
 }
 
+// the blocks list must be sorted
+void TextDocument::setIfdefedOutBlocks(const QList<BlockRange> &blocks)
+{
+    QTextDocument *doc = document();
+    auto documentLayout = qobject_cast<TextDocumentLayout*>(doc->documentLayout());
+    QTC_ASSERT(documentLayout, return);
+
+    bool needUpdate = false;
+
+    QTextBlock block = doc->firstBlock();
+
+    int rangeNumber = 0;
+    int braceDepthDelta = 0;
+    while (block.isValid()) {
+        bool cleared = false;
+        bool set = false;
+        if (rangeNumber < blocks.size()) {
+            const BlockRange &range = blocks.at(rangeNumber);
+            if (block.position() >= range.first()
+                && ((block.position() + block.length() - 1) <= range.last() || !range.last()))
+                set = TextDocumentLayout::setIfdefedOut(block);
+            else
+                cleared = TextDocumentLayout::clearIfdefedOut(block);
+            if (block.contains(range.last()))
+                ++rangeNumber;
+        } else {
+            cleared = TextDocumentLayout::clearIfdefedOut(block);
+        }
+
+        if (cleared || set) {
+            needUpdate = true;
+            int delta = TextDocumentLayout::braceDepthDelta(block);
+            if (cleared)
+                braceDepthDelta += delta;
+            else if (set)
+                braceDepthDelta -= delta;
+        }
+
+        if (braceDepthDelta) {
+            TextDocumentLayout::changeBraceDepth(block,braceDepthDelta);
+            TextDocumentLayout::changeFoldingIndent(block, braceDepthDelta); // ### C++ only, refactor!
+        }
+
+        block = block.next();
+    }
+
+    if (needUpdate)
+        documentLayout->requestUpdate();
+}
+
 const ExtraEncodingSettings &TextDocument::extraEncodingSettings() const
 {
     return d->m_extraEncodingSettings;
diff --git a/src/plugins/texteditor/textdocument.h b/src/plugins/texteditor/textdocument.h
index 26eab78ab46..71a9a120a6c 100644
--- a/src/plugins/texteditor/textdocument.h
+++ b/src/plugins/texteditor/textdocument.h
@@ -49,6 +49,7 @@ QT_END_NAMESPACE
 
 namespace TextEditor {
 
+class BlockRange;
 class CompletionAssistProvider;
 class ExtraEncodingSettings;
 class FontSettings;
@@ -103,6 +104,9 @@ public:
     void autoFormat(const QTextCursor &cursor);
     bool applyChangeSet(const Utils::ChangeSet &changeSet);
 
+    // the blocks list must be sorted
+    void setIfdefedOutBlocks(const QList<BlockRange> &blocks);
+
     TextMarks marks() const;
     bool addMark(TextMark *mark);
     TextMarks marksAt(int line) const;
diff --git a/src/plugins/texteditor/texteditor.cpp b/src/plugins/texteditor/texteditor.cpp
index 28fe278cabd..a02a29b8fc4 100644
--- a/src/plugins/texteditor/texteditor.cpp
+++ b/src/plugins/texteditor/texteditor.cpp
@@ -6795,56 +6795,6 @@ QString TextEditorWidget::extraSelectionTooltip(int pos) const
     return QString();
 }
 
-// the blocks list must be sorted
-void TextEditorWidget::setIfdefedOutBlocks(const QList<BlockRange> &blocks)
-{
-    QTextDocument *doc = document();
-    auto documentLayout = qobject_cast<TextDocumentLayout*>(doc->documentLayout());
-    QTC_ASSERT(documentLayout, return);
-
-    bool needUpdate = false;
-
-    QTextBlock block = doc->firstBlock();
-
-    int rangeNumber = 0;
-    int braceDepthDelta = 0;
-    while (block.isValid()) {
-        bool cleared = false;
-        bool set = false;
-        if (rangeNumber < blocks.size()) {
-            const BlockRange &range = blocks.at(rangeNumber);
-            if (block.position() >= range.first()
-                    && ((block.position() + block.length() - 1) <= range.last() || !range.last()))
-                set = TextDocumentLayout::setIfdefedOut(block);
-            else
-                cleared = TextDocumentLayout::clearIfdefedOut(block);
-            if (block.contains(range.last()))
-                ++rangeNumber;
-        } else {
-            cleared = TextDocumentLayout::clearIfdefedOut(block);
-        }
-
-        if (cleared || set) {
-            needUpdate = true;
-            int delta = TextDocumentLayout::braceDepthDelta(block);
-            if (cleared)
-                braceDepthDelta += delta;
-            else if (set)
-                braceDepthDelta -= delta;
-        }
-
-        if (braceDepthDelta) {
-            TextDocumentLayout::changeBraceDepth(block,braceDepthDelta);
-            TextDocumentLayout::changeFoldingIndent(block, braceDepthDelta); // ### C++ only, refactor!
-        }
-
-        block = block.next();
-    }
-
-    if (needUpdate)
-        documentLayout->requestUpdate();
-}
-
 void TextEditorWidget::autoIndent()
 {
     MultiTextCursor cursor = multiTextCursor();
diff --git a/src/plugins/texteditor/texteditor.h b/src/plugins/texteditor/texteditor.h
index 9d71130e742..2e702e20d28 100644
--- a/src/plugins/texteditor/texteditor.h
+++ b/src/plugins/texteditor/texteditor.h
@@ -331,9 +331,6 @@ public:
     RefactorMarkers refactorMarkers() const;
     void setRefactorMarkers(const RefactorMarkers &markers);
 
-    // the blocks list must be sorted
-    void setIfdefedOutBlocks(const QList<BlockRange> &blocks);
-
     enum Side { Left, Right };
     QAction *insertExtraToolBarWidget(Side side, QWidget *widget);