1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2018 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtQml module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 #include "qv4stackframe_p.h" 40 #include <QtCore/qstring.h> 41 42 using namespace QV4; 43 source() const44QString CppStackFrame::source() const 45 { 46 return v4Function ? v4Function->sourceFile() : QString(); 47 } 48 function() const49QString CppStackFrame::function() const 50 { 51 return v4Function ? v4Function->name()->toQString() : QString(); 52 } 53 lineNumber() const54int CppStackFrame::lineNumber() const 55 { 56 if (!v4Function) 57 return -1; 58 59 auto findLine = [](const CompiledData::CodeOffsetToLine &entry, uint offset) { 60 return entry.codeOffset < offset; 61 }; 62 63 const QV4::CompiledData::Function *cf = v4Function->compiledFunction; 64 uint offset = instructionPointer; 65 const CompiledData::CodeOffsetToLine *lineNumbers = cf->lineNumberTable(); 66 uint nLineNumbers = cf->nLineNumbers; 67 const CompiledData::CodeOffsetToLine *line = std::lower_bound(lineNumbers, lineNumbers + nLineNumbers, offset, findLine) - 1; 68 return line->line; 69 } 70 thisObject() const71ReturnedValue CppStackFrame::thisObject() const { 72 return jsFrame->thisObject.asReturnedValue(); 73 } 74 75