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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Build Suite.
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "moduleproperties.h"
#include <buildgraph/artifact.h>
#include <language/language.h>
#include <language/scriptengine.h>
#include <logging/translator.h>
#include <tools/error.h>
#include <tools/propertyfinder.h>
#include <QScriptEngine>
namespace qbs {
namespace Internal {
static QString ptrKey() { return QLatin1String("__internalPtr"); }
static QString typeKey() { return QLatin1String("__type"); }
static QString productType() { return QLatin1String("product"); }
static QString artifactType() { return QLatin1String("artifact"); }
void ModuleProperties::init(QScriptValue productObject,
const ResolvedProductConstPtr &product)
{
init(productObject, product.data(), productType());
}
void ModuleProperties::init(QScriptValue artifactObject, const Artifact *artifact)
{
init(artifactObject, artifact, artifactType());
}
void ModuleProperties::init(QScriptValue objectWithProperties, const void *ptr,
const QString &type)
{
QScriptEngine * const engine = objectWithProperties.engine();
objectWithProperties.setProperty(QLatin1String("moduleProperties"),
engine->newFunction(ModuleProperties::js_moduleProperties, 2));
objectWithProperties.setProperty(QLatin1String("moduleProperty"),
engine->newFunction(ModuleProperties::js_moduleProperty, 2));
objectWithProperties.setProperty(ptrKey(), engine->toScriptValue(quintptr(ptr)));
objectWithProperties.setProperty(typeKey(), type);
}
QScriptValue ModuleProperties::js_moduleProperties(QScriptContext *context, QScriptEngine *engine)
{
try {
return moduleProperties(context, engine, false);
} catch (const ErrorInfo &e) {
return context->throwError(e.toString());
}
}
QScriptValue ModuleProperties::js_moduleProperty(QScriptContext *context, QScriptEngine *engine)
{
try {
return moduleProperties(context, engine, true);
} catch (const ErrorInfo &e) {
return context->throwError(e.toString());
}
}
QScriptValue ModuleProperties::moduleProperties(QScriptContext *context, QScriptEngine *engine,
bool oneValue)
{
if (Q_UNLIKELY(context->argumentCount() < 2)) {
return context->throwError(QScriptContext::SyntaxError,
Tr::tr("Function moduleProperties() expects 2 arguments"));
}
const QScriptValue objectWithProperties = context->thisObject();
const QScriptValue typeScriptValue = objectWithProperties.property(typeKey());
if (Q_UNLIKELY(!typeScriptValue.isString())) {
return context->throwError(QScriptContext::TypeError,
QLatin1String("Internal error: __type not set up"));
}
const QScriptValue ptrScriptValue = objectWithProperties.property(ptrKey());
if (Q_UNLIKELY(!ptrScriptValue.isNumber())) {
return context->throwError(QScriptContext::TypeError,
QLatin1String("Internal error: __internalPtr not set up"));
}
const void *ptr = reinterpret_cast<const void *>(qscriptvalue_cast<quintptr>(ptrScriptValue));
PropertyMapConstPtr properties;
const Artifact *artifact = 0;
if (typeScriptValue.toString() == productType()) {
properties = static_cast<const ResolvedProduct *>(ptr)->moduleProperties;
} else if (typeScriptValue.toString() == artifactType()) {
artifact = static_cast<const Artifact *>(ptr);
properties = artifact->properties;
} else {
return context->throwError(QScriptContext::TypeError,
QLatin1String("Internal error: invalid type"));
}
ScriptEngine * const qbsEngine = static_cast<ScriptEngine *>(engine);
const QString moduleName = internalModuleName(context->argument(0).toString());
const QString propertyName = context->argument(1).toString();
QVariant value = qbsEngine->retrieveFromPropertyCache(moduleName, propertyName, properties);
if (!value.isValid()) {
if (oneValue)
value = PropertyFinder().propertyValue(properties->value(), moduleName, propertyName);
else
value = PropertyFinder().propertyValues(properties->value(), moduleName, propertyName);
const Property p(moduleName, propertyName, value);
if (artifact)
qbsEngine->addPropertyRequestedFromArtifact(artifact, p);
else
qbsEngine->addPropertyRequestedInScript(p);
// Cache the variant value. We must not cache the QScriptValue here, because it's a
// reference and the user might change the actual object.
qbsEngine->addToPropertyCache(moduleName, propertyName, properties, value);
}
return engine->toScriptValue(value);
}
QString ModuleProperties::internalModuleName(const QString &name)
{
QString result = name;
result.replace(QLatin1Char('.'), QLatin1Char('/'));
return result;
}
} // namespace Internal
} // namespace qbs
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