| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtQml module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** 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 |
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| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** 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-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qqmljsengine_p.h" |
| #include "qqmljsglobal_p.h" |
| |
| #include <QtCore/private/qnumeric_p.h> |
| #include <QtCore/qhash.h> |
| #include <QtCore/qdebug.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QQmlJS { |
| |
| static inline int toDigit(char c) |
| { |
| if ((c >= '0') && (c <= '9')) |
| return c - '0'; |
| else if ((c >= 'a') && (c <= 'z')) |
| return 10 + c - 'a'; |
| else if ((c >= 'A') && (c <= 'Z')) |
| return 10 + c - 'A'; |
| return -1; |
| } |
| |
| double integerFromString(const char *buf, int size, int radix) |
| { |
| if (size == 0) |
| return qt_qnan(); |
| |
| double sign = 1.0; |
| int i = 0; |
| if (buf[0] == '+') { |
| ++i; |
| } else if (buf[0] == '-') { |
| sign = -1.0; |
| ++i; |
| } |
| |
| if (((size-i) >= 2) && (buf[i] == '0')) { |
| if (((buf[i+1] == 'x') || (buf[i+1] == 'X')) |
| && (radix < 34)) { |
| if ((radix != 0) && (radix != 16)) |
| return 0; |
| radix = 16; |
| i += 2; |
| } else { |
| if (radix == 0) { |
| radix = 8; |
| ++i; |
| } |
| } |
| } else if (radix == 0) { |
| radix = 10; |
| } |
| |
| int j = i; |
| for ( ; i < size; ++i) { |
| int d = toDigit(buf[i]); |
| if ((d == -1) || (d >= radix)) |
| break; |
| } |
| double result; |
| if (j == i) { |
| if (!qstrcmp(buf, "Infinity")) |
| result = qInf(); |
| else |
| result = qt_qnan(); |
| } else { |
| result = 0; |
| double multiplier = 1; |
| for (--i ; i >= j; --i, multiplier *= radix) |
| result += toDigit(buf[i]) * multiplier; |
| } |
| result *= sign; |
| return result; |
| } |
| |
| Engine::Engine() |
| : _lexer(nullptr), _directives(nullptr) |
| { } |
| |
| Engine::~Engine() |
| { } |
| |
| void Engine::setCode(const QString &code) |
| { _code = code; } |
| |
| void Engine::addComment(int pos, int len, int line, int col) |
| { if (len > 0) _comments.append(QQmlJS::AST::SourceLocation(pos, len, line, col)); } |
| |
| QList<QQmlJS::AST::SourceLocation> Engine::comments() const |
| { return _comments; } |
| |
| Lexer *Engine::lexer() const |
| { return _lexer; } |
| |
| void Engine::setLexer(Lexer *lexer) |
| { _lexer = lexer; } |
| |
| Directives *Engine::directives() const |
| { return _directives; } |
| |
| void Engine::setDirectives(Directives *directives) |
| { _directives = directives; } |
| |
| MemoryPool *Engine::pool() |
| { return &_pool; } |
| |
| QStringRef Engine::newStringRef(const QString &text) |
| { |
| const int pos = _extraCode.length(); |
| _extraCode += text; |
| return _extraCode.midRef(pos, text.length()); |
| } |
| |
| QStringRef Engine::newStringRef(const QChar *chars, int size) |
| { return newStringRef(QString(chars, size)); } |
| |
| } // end of namespace QQmlJS |
| |
| QT_END_NAMESPACE |