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path: root/src/lib/corelib/language/propertydeclaration.cpp
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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qbs.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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
** a written agreement between you and The Qt Company. For licensing terms
** 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 "propertydeclaration.h"

#include "deprecationinfo.h"
#include <api/languageinfo.h>

#include <logging/translator.h>

#include <tools/error.h>
#include <tools/qttools.h>
#include <tools/stringconstants.h>

#include <QtCore/qmetatype.h>
#include <QtCore/qshareddata.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qvariant.h>

namespace qbs {
namespace Internal {

// returns QMetaType::UnknownType for types that do not need conversion
static QMetaType::Type variantType(PropertyDeclaration::Type t)
{
    switch (t) {
    case PropertyDeclaration::UnknownType:
        break;
    case PropertyDeclaration::Boolean:
        return QMetaType::Bool;
    case PropertyDeclaration::Integer:
        return QMetaType::Int;
    case PropertyDeclaration::Path:
        return QMetaType::QString;
    case PropertyDeclaration::PathList:
        return QMetaType::QStringList;
    case PropertyDeclaration::String:
        return QMetaType::QString;
    case PropertyDeclaration::StringList:
        return QMetaType::QStringList;
    case PropertyDeclaration::VariantList:
        return QMetaType::QVariantList;
    case PropertyDeclaration::Variant:
        break;
    }
    return QMetaType::UnknownType;
}

class PropertyDeclarationData : public QSharedData
{
public:
    PropertyDeclarationData()
        : type(PropertyDeclaration::UnknownType)
        , flags(PropertyDeclaration::DefaultFlags)
    {
    }

    QString name;
    PropertyDeclaration::Type type;
    PropertyDeclaration::Flags flags;
    QStringList allowedValues;
    QString description;
    QString initialValueSource;
    QStringList functionArgumentNames;
    DeprecationInfo deprecationInfo;
};


PropertyDeclaration::PropertyDeclaration()
    : d(new PropertyDeclarationData)
{
}

PropertyDeclaration::PropertyDeclaration(const QString &name, Type type,
                                         const QString &initialValue, Flags flags)
    : d(new PropertyDeclarationData)
{
    d->name = name;
    d->type = type;
    d->initialValueSource = initialValue;
    d->flags = flags;
}

PropertyDeclaration::PropertyDeclaration(const PropertyDeclaration &other) = default;

PropertyDeclaration::~PropertyDeclaration() = default;

PropertyDeclaration &PropertyDeclaration::operator=(const PropertyDeclaration &other) = default;

bool PropertyDeclaration::isValid() const
{
    return d && d->type != UnknownType;
}

bool PropertyDeclaration::isScalar() const
{
    // ### Should be determined by a PropertyOption in the future.
    return d->type != PathList && d->type != StringList && d->type != VariantList;
}

static QString boolString() { return QStringLiteral("bool"); }
static QString intString() { return QStringLiteral("int"); }
static QString pathListString() { return QStringLiteral("pathList"); }
static QString stringString() { return QStringLiteral("string"); }
static QString stringListString() { return QStringLiteral("stringList"); }
static QString varString() { return QStringLiteral("var"); }
static QString variantString() { return QStringLiteral("variant"); }
static QString varListString() { return QStringLiteral("varList"); }

PropertyDeclaration::Type PropertyDeclaration::propertyTypeFromString(const QString &typeName)
{
    if (typeName == boolString())
        return PropertyDeclaration::Boolean;
    if (typeName == intString())
        return PropertyDeclaration::Integer;
    if (typeName == StringConstants::pathType())
        return PropertyDeclaration::Path;
    if (typeName == pathListString())
        return PropertyDeclaration::PathList;
    if (typeName == stringString())
        return PropertyDeclaration::String;
    if (typeName == stringListString())
        return PropertyDeclaration::StringList;
    if (typeName == varString() || typeName == variantString())
        return PropertyDeclaration::Variant;
    if (typeName == varListString())
        return PropertyDeclaration::VariantList;
    return PropertyDeclaration::UnknownType;
}

QString PropertyDeclaration::typeString() const
{
    return typeString(type());
}

QString PropertyDeclaration::typeString(PropertyDeclaration::Type t)
{
    switch (t) {
    case Boolean: return boolString();
    case Integer: return intString();
    case Path: return StringConstants::pathType();
    case PathList: return pathListString();
    case String: return stringString();
    case StringList: return stringListString();
    case Variant: return variantString();
    case VariantList: return varListString();
    case UnknownType: return QStringLiteral("unknown");
    }
    Q_UNREACHABLE(); // For stupid compilers.
}

const QString &PropertyDeclaration::name() const
{
    return d->name;
}

void PropertyDeclaration::setName(const QString &name)
{
    d->name = name;
}

PropertyDeclaration::Type PropertyDeclaration::type() const
{
    return d->type;
}

void PropertyDeclaration::setType(PropertyDeclaration::Type t)
{
    d->type = t;
}

PropertyDeclaration::Flags PropertyDeclaration::flags() const
{
    return d->flags;
}

void PropertyDeclaration::setFlags(Flags f)
{
    d->flags = f;
}

const QStringList &PropertyDeclaration::allowedValues() const
{
    return d->allowedValues;
}

void PropertyDeclaration::setAllowedValues(const QStringList &v)
{
    d->allowedValues = v;
}

const QString &PropertyDeclaration::description() const
{
    return d->description;
}

void PropertyDeclaration::setDescription(const QString &str)
{
    d->description = str;
}

const QString &PropertyDeclaration::initialValueSource() const
{
    return d->initialValueSource;
}

void PropertyDeclaration::setInitialValueSource(const QString &str)
{
    d->initialValueSource = str;
}

const QStringList &PropertyDeclaration::functionArgumentNames() const
{
    return d->functionArgumentNames;
}

void PropertyDeclaration::setFunctionArgumentNames(const QStringList &lst)
{
    d->functionArgumentNames = lst;
}

bool PropertyDeclaration::isDeprecated() const
{
    return d->deprecationInfo.isValid();
}

bool PropertyDeclaration::isExpired() const
{
    return isDeprecated() && deprecationInfo().removalVersion() <= LanguageInfo::qbsVersion();
}

const DeprecationInfo &PropertyDeclaration::deprecationInfo() const
{
    return d->deprecationInfo;
}

void PropertyDeclaration::setDeprecationInfo(const DeprecationInfo &deprecationInfo)
{
    d->deprecationInfo = deprecationInfo;
}

// see also: EvaluatorScriptClass::convertToPropertyType()
QVariant PropertyDeclaration::convertToPropertyType(const QVariant &v, Type t,
    const QStringList &namePrefix, const QString &key)
{
    if (v.isNull() || !v.isValid())
        return v;
    const auto vt = variantType(t);
    if (vt == QMetaType::UnknownType)
        return v;

    // Handle the foo,bar,bla stringlist syntax.
    if (t == PropertyDeclaration::StringList && v.userType() == QMetaType::QString)
        return v.toString().split(QLatin1Char(','));

    QVariant c = v;
    if (!qVariantConvert(c, vt)) {
        QStringList name = namePrefix;
        name << key;
        throw ErrorInfo(Tr::tr("Value '%1' of property '%2' has incompatible type.")
                        .arg(v.toString(), name.join(QLatin1Char('.'))));
    }
    return c;
}

} // namespace Internal
} // namespace qbs