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Clang: Do not call processEvents call in local renaming

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Use QFutureWatcher and lambda instead.

Task-number: QTCREATORBUG-19799
Change-Id: I00e9439d46609902cbfb02906280c0c96b8c884e
Reviewed-by: Marco Bubke <marco.bubke@qt.io>
This commit is contained in:
Ivan Donchevskii
2018-02-21 13:00:06 +01:00
parent 336ab17614
commit 66fe088ab8
2 changed files with 26 additions and 21 deletions
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40
src/plugins/clangcodemodel/clangrefactoringengine.cpp
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@@ -47,32 +47,30 @@ void RefactoringEngine::startLocalRenaming(const CppTools::CursorInEditor &data,
if (!processor)
return defaultCallback();
QFuture<CppTools::CursorInfo> future = processor->requestLocalReferences(data.cursor());
if (future.isCanceled())
QFuture<CppTools::CursorInfo> cursorFuture = processor->requestLocalReferences(data.cursor());
if (cursorFuture.isCanceled())
return defaultCallback();
// QFuture::waitForFinished seems to block completely, not even
// allowing to process events from QLocalSocket.
while (!future.isFinished()) {
if (future.isCanceled())
QObject::connect(&m_watcher, &FutureCursorWatcher::finished, [=]() {
const CppTools::CursorInfo info = m_watcher.result();
if (info.useRanges.empty())
return defaultCallback();
QTC_ASSERT(startRevision == data.cursor().document()->revision(), return;);
QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
}
QTextCursor cursor = Utils::Text::wordStartCursor(data.cursor());
cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor,
info.useRanges.first().length);
const QString symbolName = cursor.selectedText();
ClangBackEnd::SourceLocationsContainer container;
for (auto& use : info.useRanges) {
container.insertSourceLocation(ClangBackEnd::FilePathId(),
use.line,
use.column,
use.length);
}
renameSymbolsCallback(symbolName, container, data.cursor().document()->revision());
});
const CppTools::CursorInfo info = future.result();
if (info.useRanges.empty())
return defaultCallback();
QTextCursor cursor = Utils::Text::wordStartCursor(data.cursor());
cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor,
info.useRanges.first().length);
const QString symbolName = cursor.selectedText();
ClangBackEnd::SourceLocationsContainer container;
for (auto& use : info.useRanges)
container.insertSourceLocation(ClangBackEnd::FilePathId(), use.line, use.column, use.length);
renameSymbolsCallback(symbolName, container, data.cursor().document()->revision());
m_watcher.setFuture(cursorFuture);
}
}

7
src/plugins/clangcodemodel/clangrefactoringengine.h
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@@ -26,6 +26,9 @@
#pragma once
#include <cpptools/refactoringengineinterface.h>
#include <cpptools/cppcursorinfo.h>
#include <QFutureWatcher>
namespace ClangBackEnd {
class RefactoringClientInterface;
@@ -49,6 +52,10 @@ public:
{
return Link();
}
private:
using FutureCursorWatcher = QFutureWatcher<CppTools::CursorInfo>;
FutureCursorWatcher m_watcher;
};
} // namespace ClangRefactoring