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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "analyzerutils.h"
#include <cppeditor/cppmodelmanager.h>
#include <texteditor/texteditor.h>
#include <texteditor/textdocument.h>
#include <utils/qtcassert.h>
#include <cplusplus/ExpressionUnderCursor.h>
#include <cplusplus/TypeOfExpression.h>
#include <QTextCursor>
using namespace Core;
using namespace ProjectExplorer;
static void moveCursorToEndOfName(QTextCursor *tc)
{
QTextDocument *doc = tc->document();
if (!doc)
return;
QChar ch = doc->characterAt(tc->position());
while (ch.isLetterOrNumber() || ch == '_') {
tc->movePosition(QTextCursor::NextCharacter);
ch = doc->characterAt(tc->position());
}
}
// TODO: Can this be improved? This code is ripped from CppEditor, especially CppElementEvaluater
// We cannot depend on this since CppEditor plugin code is internal and requires building the implementation files ourselves
CPlusPlus::Symbol *AnalyzerUtils::findSymbolUnderCursor()
{
TextEditor::TextEditorWidget *widget = TextEditor::TextEditorWidget::currentTextEditorWidget();
if (!widget)
return nullptr;
QTextCursor tc = widget->textCursor();
int line = 0;
int column = 0;
const int pos = tc.position();
widget->convertPosition(pos, &line, &column);
const CPlusPlus::Snapshot &snapshot = CppEditor::CppModelManager::instance()->snapshot();
CPlusPlus::Document::Ptr doc = snapshot.document(widget->textDocument()->filePath());
QTC_ASSERT(doc, return nullptr);
// fetch the expression's code
CPlusPlus::ExpressionUnderCursor expressionUnderCursor(doc->languageFeatures());
moveCursorToEndOfName(&tc);
const QString &expression = expressionUnderCursor(tc);
CPlusPlus::Scope *scope = doc->scopeAt(line, column - 1);
CPlusPlus::TypeOfExpression typeOfExpression;
typeOfExpression.init(doc, snapshot);
const QList<CPlusPlus::LookupItem> &lookupItems = typeOfExpression(expression.toUtf8(), scope);
if (lookupItems.isEmpty())
return nullptr;
const CPlusPlus::LookupItem &lookupItem = lookupItems.first(); // ### TODO: select best candidate.
return lookupItem.declaration();
}
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