forked from qt-creator/qt-creator
6744c1e69c
According to https://wiki.qt.io/Things_To_Look_Out_For_In_Reviews QSharedPointer impl is poor and it's going to be removed from Qt 7. Change-Id: I41b753f52d06bb35988d1a57478e06daaec04f31 Reviewed-by: <github-actions-qt-creator@cristianadam.eu> Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
114 lines
3.8 KiB
C++
114 lines
3.8 KiB
C++
// Copyright (C) 2023 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include "cppfunctionparamrenaminghandler.h"
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#include "cppeditorwidget.h"
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#include "cpplocalrenaming.h"
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#include "cppfunctiondecldeflink.h"
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#include "cppsemanticinfo.h"
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#include <cplusplus/AST.h>
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#include <cplusplus/ASTPath.h>
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#include <texteditor/textdocument.h>
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#include <memory>
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using namespace CPlusPlus;
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namespace CppEditor::Internal {
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using DeclDefLinkPtr = std::shared_ptr<FunctionDeclDefLink>;
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class CppFunctionParamRenamingHandler::Private
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{
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public:
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Private(CppEditorWidget &editorWidget, CppLocalRenaming &localRenaming);
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void handleRenamingStarted();
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void handleRenamingFinished();
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void handleLinkFound(const DeclDefLinkPtr &link);
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void findLink(FunctionDefinitionAST &func, const SemanticInfo &semanticInfo);
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CppEditorWidget &editorWidget;
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CppLocalRenaming &localRenaming;
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std::unique_ptr<FunctionDeclDefLinkFinder> linkFinder;
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DeclDefLinkPtr link;
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};
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CppFunctionParamRenamingHandler::CppFunctionParamRenamingHandler(
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CppEditorWidget &editorWidget, CppLocalRenaming &localRenaming)
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: d(new Private(editorWidget, localRenaming)) {}
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CppFunctionParamRenamingHandler::~CppFunctionParamRenamingHandler() { delete d; }
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CppFunctionParamRenamingHandler::Private::Private(
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CppEditorWidget &editorWidget, CppLocalRenaming &localRenaming)
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: editorWidget(editorWidget), localRenaming(localRenaming)
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{
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QObject::connect(&localRenaming, &CppLocalRenaming::started,
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&editorWidget, [this] { handleRenamingStarted(); });
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QObject::connect(&localRenaming, &CppLocalRenaming::finished,
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&editorWidget, [this] { handleRenamingFinished(); });
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}
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void CppFunctionParamRenamingHandler::Private::handleRenamingStarted()
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{
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linkFinder.reset();
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link.reset();
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// Are we currently on the function signature? In this case, the normal decl/def link
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// mechanism kicks in and we don't have to do anything.
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if (editorWidget.declDefLink())
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return;
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// If we find a surrounding function definition, start up the decl/def link finder.
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const SemanticInfo semanticInfo = editorWidget.semanticInfo();
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if (!semanticInfo.doc || !semanticInfo.doc->translationUnit())
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return;
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const QList<AST *> astPath = ASTPath(semanticInfo.doc)(editorWidget.textCursor());
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for (auto it = astPath.rbegin(); it != astPath.rend(); ++it) {
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if (const auto func = (*it)->asFunctionDefinition()) {
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findLink(*func, semanticInfo);
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return;
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}
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}
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}
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void CppFunctionParamRenamingHandler::Private::handleRenamingFinished()
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{
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if (link) {
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link->apply(&editorWidget, false);
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link.reset();
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}
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}
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void CppFunctionParamRenamingHandler::Private::handleLinkFound(const DeclDefLinkPtr &link)
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{
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if (localRenaming.isActive())
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this->link = link;
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linkFinder.reset();
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}
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void CppFunctionParamRenamingHandler::Private::findLink(FunctionDefinitionAST &func,
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const SemanticInfo &semanticInfo)
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{
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if (!func.declarator)
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return;
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// The finder needs a cursor that points to the signature, so provide one.
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QTextDocument * const doc = editorWidget.textDocument()->document();
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const int pos = semanticInfo.doc->translationUnit()->getTokenEndPositionInDocument(
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func.declarator->firstToken(), doc);
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QTextCursor cursor(doc);
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cursor.setPosition(pos);
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linkFinder.reset(new FunctionDeclDefLinkFinder);
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QObject::connect(linkFinder.get(), &FunctionDeclDefLinkFinder::foundLink,
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&editorWidget, [this](const DeclDefLinkPtr &link) {
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handleLinkFound(link);
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});
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linkFinder->startFindLinkAt(cursor, semanticInfo.doc, semanticInfo.snapshot);
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}
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} // namespace CppEditor::Internal
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