Clangd: add quick fix factory

Change-Id: Idea71364b0e3f528e9dd366d46a2797f5056dfed
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/clangcodemodel/CMakeLists.txt

@@ -6,8 +6,8 @@ endif()
 add_qtc_plugin(ClangCodeModel
   CONDITION TARGET libclang
   DEPENDS ClangSupport CPlusPlus
-  PLUGIN_DEPENDS Core CppTools LanguageClient ${TEST_LINK_DEPENDS} TextEditor
-  PLUGIN_TEST_DEPENDS CppEditor QmakeProjectManager
+  PLUGIN_DEPENDS Core CppEditor CppTools LanguageClient ${TEST_LINK_DEPENDS} TextEditor
+  PLUGIN_TEST_DEPENDS QmakeProjectManager
   SOURCES
     clangactivationsequencecontextprocessor.cpp clangactivationsequencecontextprocessor.h
     clangactivationsequenceprocessor.cpp clangactivationsequenceprocessor.h
@@ -24,11 +24,12 @@ add_qtc_plugin(ClangCodeModel
     clangcompletionchunkstotextconverter.cpp clangcompletionchunkstotextconverter.h
     clangcompletioncontextanalyzer.cpp clangcompletioncontextanalyzer.h
     clangconstants.h
-    clangdclient.cpp clangdclient.h
     clangcurrentdocumentfilter.cpp clangcurrentdocumentfilter.h
+    clangdclient.cpp clangdclient.h
     clangdiagnosticfilter.cpp clangdiagnosticfilter.h
     clangdiagnosticmanager.cpp clangdiagnosticmanager.h
     clangdiagnostictooltipwidget.cpp clangdiagnostictooltipwidget.h
+    clangdquickfixfactory.cpp clangdquickfixfactory.h
     clangeditordocumentparser.cpp clangeditordocumentparser.h
     clangeditordocumentprocessor.cpp clangeditordocumentprocessor.h
     clangfixitoperation.cpp clangfixitoperation.h

src/plugins/clangcodemodel/clangcodemodel.pro

@@ -42,7 +42,8 @@ SOURCES += \
     clangutils.cpp \
     clangoverviewmodel.cpp \
     clangdclient.cpp \
-    clanggloballocatorfilters.cpp
+    clangdquickfixfactory.cpp \
+    clanggloballocatorfilters.cpp \
 
 HEADERS += \
     clangactivationsequencecontextprocessor.h \
@@ -83,7 +84,8 @@ HEADERS += \
     clangutils.h \
     clangoverviewmodel.h \
     clangdclient.h \
-    clanggloballocatorfilters.h
+    clangdquickfixfactory.h \
+    clanggloballocatorfilters.h \
 
 FORMS += clangprojectsettingswidget.ui
 

src/plugins/clangcodemodel/clangcodemodel.qbs

@@ -13,12 +13,12 @@ QtcPlugin {
     Depends { name: "Utils" }
     Depends { name: "ClangSupport" }
     Depends { name: "LanguageClient" }
+    Depends { name: "CppEditor" }
 
     Depends { name: "libclang"; required: false }
     Depends { name: "clang_defines" }
 
     pluginTestDepends: [
-        "CppEditor",
         "QmakeProjectManager",
     ]
 
@@ -64,6 +64,8 @@ QtcPlugin {
         "clangdiagnosticmanager.h",
         "clangdiagnostictooltipwidget.cpp",
         "clangdiagnostictooltipwidget.h",
+        "clangdquickfixfactory.cpp",
+        "clangdquickfixfactory.h",
         "clangeditordocumentparser.cpp",
         "clangeditordocumentparser.h",
         "clangeditordocumentprocessor.cpp",

src/plugins/clangcodemodel/clangcodemodel_dependencies.pri

@@ -4,11 +4,11 @@ QTC_LIB_DEPENDS += \
     clangsupport
 QTC_PLUGIN_DEPENDS += \
     coreplugin \
+    cppeditor \
     cpptools \
     languageclient \
     texteditor
 QTC_TEST_DEPENDS += \
-    cppeditor \
     qmakeprojectmanager
 
 equals(TEST, 1): QTC_PLUGIN_DEPENDS += qtsupport

src/plugins/clangcodemodel/clangdquickfixfactory.cpp

@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "clangdquickfixfactory.h"
+
+#include "clangdclient.h"
+#include "clangmodelmanagersupport.h"
+
+#include <languageclient/languageclientquickfix.h>
+
+using namespace LanguageServerProtocol;
+
+namespace ClangCodeModel {
+namespace Internal {
+
+ClangdQuickFixFactory::ClangdQuickFixFactory() = default;
+
+void ClangdQuickFixFactory::match(const CppEditor::Internal::CppQuickFixInterface &interface,
+                                  QuickFixOperations &result)
+{
+    const auto client = ClangModelManagerSupport::instance()->clientForFile(interface.filePath());
+    if (!client)
+        return;
+
+    const auto uri = DocumentUri::fromFilePath(interface.filePath());
+    QTextCursor cursor(interface.textDocument());
+    cursor.setPosition(interface.position());
+    cursor.select(QTextCursor::LineUnderCursor);
+    const QList<Diagnostic> &diagnostics = client->diagnosticsAt(uri, cursor);
+    for (const Diagnostic &diagnostic : diagnostics) {
+        ClangdDiagnostic clangdDiagnostic(diagnostic);
+        if (const auto actions = clangdDiagnostic.codeActions()) {
+            for (const CodeAction &action : *actions)
+                result << new LanguageClient::CodeActionQuickFixOperation(action, client);
+        }
+    }
+}
+
+} // namespace Internal
+} // namespace ClangCodeModel

src/plugins/clangcodemodel/clangdquickfixfactory.h

@@ -0,0 +1,43 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <cppeditor/cppquickfix.h>
+
+namespace ClangCodeModel {
+namespace Internal {
+
+class ClangdQuickFixFactory : public CppEditor::CppQuickFixFactory
+{
+public:
+    ClangdQuickFixFactory();
+
+    void match(const CppEditor::Internal::CppQuickFixInterface &interface,
+               QuickFixOperations &result) override;
+};
+
+} // namespace Internal
+} // namespace ClangCodeModel

src/plugins/clangcodemodel/clangmodelmanagersupport.cpp

@@ -26,16 +26,17 @@
 #include "clangmodelmanagersupport.h"
 
 #include "clangconstants.h"
+#include "clangcurrentdocumentfilter.h"
 #include "clangdclient.h"
+#include "clangdquickfixfactory.h"
 #include "clangeditordocumentprocessor.h"
-#include "clangutils.h"
 #include "clangfollowsymbol.h"
+#include "clanggloballocatorfilters.h"
 #include "clanghoverhandler.h"
+#include "clangoverviewmodel.h"
 #include "clangprojectsettings.h"
 #include "clangrefactoringengine.h"
-#include "clangcurrentdocumentfilter.h"
-#include "clanggloballocatorfilters.h"
-#include "clangoverviewmodel.h"
+#include "clangutils.h"
 
 #include <coreplugin/editormanager/documentmodel.h>
 #include <coreplugin/editormanager/editormanager.h>
@@ -128,6 +129,7 @@ ClangModelManagerSupport::ClangModelManagerSupport()
     // TODO: Enable this once we do document-level stuff with clangd (highlighting etc)
     // createClient(nullptr, {});
     m_generatorSynchronizer.setCancelOnWait(true);
+    new ClangdQuickFixFactory(); // memory managed by CppEditor::g_cppQuickFixFactories
 }
 
 ClangModelManagerSupport::~ClangModelManagerSupport()