--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/expr/qcomparisonplatform.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,199 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/**
+ * @file
+ * @short This file is included by qcomparisonplatform_p.h.
+ * If you need includes in this file, put them in qcomparisonplatform_p.h, outside of the namespace.
+ */
+
+template <typename TSubClass, bool issueError,
+ AtomicComparator::ComparisonType comparisonType, ReportContext::ErrorCode errorCode>
+bool ComparisonPlatform<TSubClass, issueError, comparisonType, errorCode>::
+flexibleCompare(const Item &it1,
+ const Item &it2,
+ const DynamicContext::Ptr &context) const
+{
+ if(m_comparator)
+ /* The comparator was located at compile time. */
+ return compare(it1, it2, m_comparator, operatorID());
+ else
+ {
+ const AtomicComparator::Ptr cp(fetchComparator(it1.type(),
+ it2.type(),
+ context));
+
+ return cp ? compare(it1, it2, cp, operatorID()) : false;
+ }
+}
+
+template <typename TSubClass, bool issueError,
+ AtomicComparator::ComparisonType comparisonType, ReportContext::ErrorCode errorCode>
+AtomicComparator::ComparisonResult
+ComparisonPlatform<TSubClass, issueError, comparisonType, errorCode>::
+detailedFlexibleCompare(const Item &it1,
+ const Item &it2,
+ const DynamicContext::Ptr &context) const
+{
+ AtomicComparator::Ptr comp;
+
+ if(m_comparator)
+ comp = m_comparator;
+ else
+ {
+ comp = fetchComparator(it1.type(),
+ it2.type(),
+ context);
+ }
+
+ Q_ASSERT_X(operatorID() == AtomicComparator::OperatorLessThanNaNLeast || operatorID() == AtomicComparator::OperatorLessThanNaNGreatest,
+ Q_FUNC_INFO, "Only OperatorLessThan is currently supported for this function.");
+ return comp->compare(it1, operatorID(), it2);
+}
+
+template <typename TSubClass, bool issueError,
+ AtomicComparator::ComparisonType comparisonType, ReportContext::ErrorCode errorCode>
+bool ComparisonPlatform<TSubClass, issueError, comparisonType, errorCode>::
+compare(const Item &oand1,
+ const Item &oand2,
+ const AtomicComparator::Ptr &comp,
+ const AtomicComparator::Operator op) const
+{
+ Q_ASSERT(oand1);
+ Q_ASSERT(oand2);
+ Q_ASSERT(comp);
+
+ switch(op)
+ {
+ case AtomicComparator::OperatorEqual:
+ return comp->equals(oand1, oand2);
+ case AtomicComparator::OperatorNotEqual:
+ return !comp->equals(oand1, oand2);
+ case AtomicComparator::OperatorLessThanNaNLeast:
+ case AtomicComparator::OperatorLessThanNaNGreatest:
+ /* Fallthrough. */
+ case AtomicComparator::OperatorLessThan:
+ return comp->compare(oand1, op, oand2) == AtomicComparator::LessThan;
+ case AtomicComparator::OperatorGreaterThan:
+ return comp->compare(oand1, op, oand2) == AtomicComparator::GreaterThan;
+ case AtomicComparator::OperatorLessOrEqual:
+ {
+ const AtomicComparator::ComparisonResult ret = comp->compare(oand1, op, oand2);
+ return ret == AtomicComparator::LessThan || ret == AtomicComparator::Equal;
+ }
+ case(AtomicComparator::OperatorGreaterOrEqual):
+ {
+ const AtomicComparator::ComparisonResult ret = comp->compare(oand1, op, oand2);
+ return ret == AtomicComparator::GreaterThan || ret == AtomicComparator::Equal;
+ }
+ }
+
+ /* GCC unbarfer, this line should never be reached. */
+ Q_ASSERT(false);
+ return false;
+}
+
+template <typename TSubClass, bool issueError,
+ AtomicComparator::ComparisonType comparisonType, ReportContext::ErrorCode errorCode>
+AtomicComparator::Ptr ComparisonPlatform<TSubClass, issueError, comparisonType, errorCode>::
+fetchComparator(const ItemType::Ptr &t1,
+ const ItemType::Ptr &t2,
+ const ReportContext::Ptr &context) const
+{
+ Q_ASSERT(t1);
+ Q_ASSERT(t2);
+
+ if(*BuiltinTypes::xsAnyAtomicType == *t1 ||
+ *BuiltinTypes::xsAnyAtomicType == *t2 ||
+ *BuiltinTypes::item == *t1 ||
+ *BuiltinTypes::item == *t2 ||
+ *BuiltinTypes::numeric == *t1 ||
+ *BuiltinTypes::numeric == *t2 ||
+ *CommonSequenceTypes::Empty == *t1 ||
+ *CommonSequenceTypes::Empty == *t2)
+ {
+ /* The static type of(at least) one of the operands could not
+ * be narrowed further, so we do the operator
+ * lookup at runtime.
+ */
+ return AtomicComparator::Ptr();
+ }
+
+ const AtomicComparatorLocator::Ptr locator
+ (static_cast<const AtomicType *>(t1.data())->comparatorLocator());
+
+ if(!locator)
+ {
+ if(issueError)
+ {
+ context->error(QtXmlPatterns::tr("No comparisons can be done involving the type %1.")
+ .arg(formatType(context->namePool(), t1)),
+ errorCode, static_cast<const TSubClass *>(this)->actualReflection());
+ }
+ return AtomicComparator::Ptr();
+ }
+
+ const AtomicComparator::Ptr comp(static_cast<const AtomicType *>(t2.data())->accept(locator, operatorID(),
+ static_cast<const TSubClass *>(this)->actualReflection()));
+
+ if(comp)
+ return comp;
+ else if(issueError)
+ {
+ context->error(QtXmlPatterns::tr("Operator %1 is not available between atomic values of type %2 and %3.")
+ .arg(formatKeyword(AtomicComparator::displayName(operatorID(),
+ comparisonType)),
+ formatType(context->namePool(), t1),
+ formatType(context->namePool(), t2)),
+ errorCode, static_cast<const TSubClass *>(this)->actualReflection());
+ }
+
+ return AtomicComparator::Ptr();
+}
+
+template <typename TSubClass, bool issueError,
+ AtomicComparator::ComparisonType comparisonType, ReportContext::ErrorCode errorCode>
+void ComparisonPlatform<TSubClass, issueError, comparisonType, errorCode>::
+prepareComparison(const AtomicComparator::Ptr &c)
+{
+ m_comparator = c;
+}
+