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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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QBS_VALUE_H
#define QBS_VALUE_H
#include "forward_decls.h"
#include <tools/codelocation.h>
#include <QtCore/qvariant.h>
#include <vector>
namespace qbs {
namespace Internal {
class Item;
class ValueHandler;
class Value
{
public:
enum Type
{
JSSourceValueType,
ItemValueType,
VariantValueType
};
Value(Type t, bool createdByPropertiesBlock);
Value(const Value &other);
virtual ~Value();
Type type() const { return m_type; }
virtual void apply(ValueHandler *) = 0;
virtual ValuePtr clone() const = 0;
virtual CodeLocation location() const { return {}; }
Item *definingItem() const;
virtual void setDefiningItem(Item *item);
ValuePtr next() const;
void setNext(const ValuePtr &next);
bool createdByPropertiesBlock() const { return m_createdByPropertiesBlock; }
void setCreatedByPropertiesBlock(bool b) { m_createdByPropertiesBlock = b; }
void clearCreatedByPropertiesBlock() { m_createdByPropertiesBlock = false; }
private:
Type m_type;
Item *m_definingItem;
ValuePtr m_next;
bool m_createdByPropertiesBlock;
};
class ValueHandler
{
public:
virtual void handle(JSSourceValue *value) = 0;
virtual void handle(ItemValue *value) = 0;
virtual void handle(VariantValue *value) = 0;
};
class JSSourceValue : public Value
{
friend class ItemReaderASTVisitor;
enum Flag
{
NoFlags = 0x00,
SourceUsesBase = 0x01,
SourceUsesOuter = 0x02,
SourceUsesOriginal = 0x04,
HasFunctionForm = 0x08,
ExclusiveListValue = 0x10,
BuiltinDefaultValue = 0x20,
};
Q_DECLARE_FLAGS(Flags, Flag)
public:
explicit JSSourceValue(bool createdByPropertiesBlock);
JSSourceValue(const JSSourceValue &other);
static JSSourceValuePtr QBS_AUTOTEST_EXPORT create(bool createdByPropertiesBlock = false);
~JSSourceValue() override;
void apply(ValueHandler *handler) override { handler->handle(this); }
ValuePtr clone() const override;
void setSourceCode(const QStringRef &sourceCode) { m_sourceCode = sourceCode; }
const QStringRef &sourceCode() const { return m_sourceCode; }
QString sourceCodeForEvaluation() const;
void setLocation(int line, int column);
int line() const { return m_line; }
int column() const { return m_column; }
CodeLocation location() const override;
void setFile(const FileContextPtr &file) { m_file = file; }
const FileContextPtr &file() const { return m_file; }
void setSourceUsesBaseFlag() { m_flags |= SourceUsesBase; }
bool sourceUsesBase() const { return m_flags.testFlag(SourceUsesBase); }
bool sourceUsesOuter() const { return m_flags.testFlag(SourceUsesOuter); }
bool sourceUsesOriginal() const { return m_flags.testFlag(SourceUsesOriginal); }
bool hasFunctionForm() const { return m_flags.testFlag(HasFunctionForm); }
void setHasFunctionForm(bool b);
void setIsExclusiveListValue() { m_flags |= ExclusiveListValue; }
bool isExclusiveListValue() { return m_flags.testFlag(ExclusiveListValue); }
void setIsBuiltinDefaultValue() { m_flags |= BuiltinDefaultValue; }
bool isBuiltinDefaultValue() const { return m_flags.testFlag(BuiltinDefaultValue); }
const JSSourceValuePtr &baseValue() const { return m_baseValue; }
void setBaseValue(const JSSourceValuePtr &v) { m_baseValue = v; }
struct Alternative
{
struct PropertyData
{
PropertyData() = default;
PropertyData(QString v, const CodeLocation &l) : value(std::move(v)), location(l) {}
QString value;
CodeLocation location;
};
Alternative() = default;
Alternative(PropertyData c, PropertyData o, JSSourceValuePtr v)
: condition(std::move(c)), overrideListProperties(std::move(o)), value(std::move(v)) {}
Alternative clone() const
{
return Alternative(condition, overrideListProperties,
std::static_pointer_cast<JSSourceValue>(value->clone()));
}
PropertyData condition;
PropertyData overrideListProperties;
JSSourceValuePtr value;
};
using AltProperty = Alternative::PropertyData;
const std::vector<Alternative> &alternatives() const { return m_alternatives; }
void addAlternative(const Alternative &alternative) { m_alternatives.push_back(alternative); }
void clearAlternatives();
void setDefiningItem(Item *item) override;
private:
QStringRef m_sourceCode;
int m_line;
int m_column;
FileContextPtr m_file;
Flags m_flags;
JSSourceValuePtr m_baseValue;
std::vector<Alternative> m_alternatives;
};
class ItemValue : public Value
{
public:
ItemValue(Item *item, bool createdByPropertiesBlock);
static ItemValuePtr create(Item *item, bool createdByPropertiesBlock = false);
Item *item() const { return m_item; }
void setItem(Item *item) { m_item = item; }
private:
void apply(ValueHandler *handler) override { handler->handle(this); }
ValuePtr clone() const override;
Item *m_item;
};
class VariantValue : public Value
{
public:
explicit VariantValue(QVariant v);
static VariantValuePtr create(const QVariant &v = QVariant());
void apply(ValueHandler *handler) override { handler->handle(this); }
ValuePtr clone() const override;
const QVariant &value() const { return m_value; }
static const VariantValuePtr &falseValue();
static const VariantValuePtr &trueValue();
static const VariantValuePtr &invalidValue();
private:
QVariant m_value;
};
} // namespace Internal
} // namespace qbs
#endif // QBS_VALUE_H
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