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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 "astpropertiesitemhandler.h"
#include <language/item.h>
#include <language/value.h>
#include <logging/translator.h>
#include <tools/error.h>
#include <tools/qbsassert.h>
#include <tools/stringconstants.h>
namespace qbs {
namespace Internal {
ASTPropertiesItemHandler::ASTPropertiesItemHandler(Item *parentItem) : m_parentItem(parentItem)
{
}
void ASTPropertiesItemHandler::handlePropertiesItems()
{
// TODO: Simply forbid Properties items to have child items and get rid of this check.
if (m_parentItem->type() != ItemType::Properties)
setupAlternatives();
}
void ASTPropertiesItemHandler::setupAlternatives()
{
auto it = m_parentItem->m_children.begin();
while (it != m_parentItem->m_children.end()) {
Item * const child = *it;
bool remove = false;
if (child->type() == ItemType::Properties) {
handlePropertiesBlock(child);
remove = m_parentItem->type() != ItemType::Export;
}
if (remove)
it = m_parentItem->m_children.erase(it);
else
++it;
}
}
class PropertiesBlockConverter
{
public:
PropertiesBlockConverter(const JSSourceValue::AltProperty &condition,
const JSSourceValue::AltProperty &overrideListProperties,
Item *propertiesBlockContainer, const Item *propertiesBlock)
: m_propertiesBlockContainer(propertiesBlockContainer)
, m_propertiesBlock(propertiesBlock)
{
m_alternative.condition = condition;
m_alternative.overrideListProperties = overrideListProperties;
}
void apply()
{
doApply(m_propertiesBlockContainer, m_propertiesBlock);
}
private:
JSSourceValue::Alternative m_alternative;
Item * const m_propertiesBlockContainer;
const Item * const m_propertiesBlock;
void doApply(Item *outer, const Item *inner)
{
for (auto it = inner->properties().constBegin();
it != inner->properties().constEnd(); ++it) {
if (inner == m_propertiesBlock
&& (it.key() == StringConstants::conditionProperty()
|| it.key() == StringConstants::overrideListPropertiesProperty())) {
continue;
}
if (it.value()->type() == Value::ItemValueType) {
Item * const innerVal = std::static_pointer_cast<ItemValue>(it.value())->item();
ItemValuePtr outerVal = outer->itemProperty(it.key());
if (!outerVal) {
outerVal = ItemValue::create(Item::create(outer->pool(), innerVal->type()),
true);
outer->setProperty(it.key(), outerVal);
}
doApply(outerVal->item(), innerVal);
} else if (it.value()->type() == Value::JSSourceValueType) {
const ValuePtr outerVal = outer->property(it.key());
if (Q_UNLIKELY(outerVal && outerVal->type() != Value::JSSourceValueType)) {
throw ErrorInfo(Tr::tr("Incompatible value type in unconditional value at %1.")
.arg(outerVal->location().toString()));
}
doApply(it.key(), outer, std::static_pointer_cast<JSSourceValue>(outerVal),
std::static_pointer_cast<JSSourceValue>(it.value()));
} else {
QBS_CHECK(!"Unexpected value type in conditional value.");
}
}
}
void doApply(const QString &propertyName, Item *item, JSSourceValuePtr value,
const JSSourceValuePtr &conditionalValue)
{
if (!value) {
value = JSSourceValue::create(true);
value->setFile(conditionalValue->file());
item->setProperty(propertyName, value);
value->setSourceCode(StringConstants::baseVar());
value->setSourceUsesBase();
}
m_alternative.value = conditionalValue;
value->addAlternative(m_alternative);
}
};
static JSSourceValue::AltProperty getPropertyData(const Item *propertiesItem, const QString &name)
{
const ValuePtr value = propertiesItem->property(name);
if (!value) {
if (name == StringConstants::conditionProperty()) {
throw ErrorInfo(Tr::tr("Properties.condition must be provided."),
propertiesItem->location());
}
return JSSourceValue::AltProperty(StringConstants::falseValue(),
propertiesItem->location());
}
if (Q_UNLIKELY(value->type() != Value::JSSourceValueType)) {
throw ErrorInfo(Tr::tr("Properties.%1 must be a value binding.").arg(name),
propertiesItem->location());
}
if (name == StringConstants::overrideListPropertiesProperty()) {
const Item *parent = propertiesItem->parent();
while (parent) {
if (parent->type() == ItemType::Product)
break;
parent = parent->parent();
}
if (!parent) {
throw ErrorInfo(Tr::tr("Properties.overrideListProperties can only be set "
"in a Product item."));
}
}
const JSSourceValuePtr srcval = std::static_pointer_cast<JSSourceValue>(value);
return JSSourceValue::AltProperty(srcval->sourceCodeForEvaluation(), srcval->location());
}
void ASTPropertiesItemHandler::handlePropertiesBlock(const Item *propertiesItem)
{
const auto condition = getPropertyData(propertiesItem, StringConstants::conditionProperty());
const auto overrideListProperties = getPropertyData(propertiesItem,
StringConstants::overrideListPropertiesProperty());
PropertiesBlockConverter(condition, overrideListProperties, m_parentItem,
propertiesItem).apply();
}
} // namespace Internal
} // namespace qbs
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