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Diffstat (limited to 'src/lib/corelib/loader/astpropertiesitemhandler.cpp')
| -rw-r--r-- | src/lib/corelib/loader/astpropertiesitemhandler.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/lib/corelib/loader/astpropertiesitemhandler.cpp b/src/lib/corelib/loader/astpropertiesitemhandler.cpp new file mode 100644 index 000000000..8183e6b79 --- /dev/null +++ b/src/lib/corelib/loader/astpropertiesitemhandler.cpp @@ -0,0 +1,195 @@ +/**************************************************************************** +** +** 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, ItemPool &itemPool) + : m_parentItem(parentItem), m_itemPool(itemPool) +{ +} + +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, + ItemPool &pool) + : m_propertiesBlockContainer(propertiesBlockContainer) + , m_propertiesBlock(propertiesBlock) + , m_itemPool(pool) + { + 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; + ItemPool &m_itemPool; + + 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(), m_itemPool); + if (!outerVal) { + outerVal = ItemValue::create(Item::create(&m_itemPool, 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 {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 {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, m_itemPool).apply(); +} + +} // namespace Internal +} // namespace qbs |