--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/expr/quserfunctioncallsite_p.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,182 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_UserFunctionCallsite_H
+#define Patternist_UserFunctionCallsite_H
+
+#include "qcallsite_p.h"
+#include "qfunctionsignature_p.h"
+#include "qunlimitedcontainer_p.h"
+#include "quserfunction_p.h"
+#include "qvariabledeclaration_p.h"
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+ /**
+ * @short Performs a call to a UserFunction.
+ *
+ * UserFunctionCallsite is the call site to a function that has been
+ * declared in the query using <tt>declare function</tt>. That is, it is
+ * never used for builtin functions such as <tt>fn:count()</tt>.
+ *
+ * @see UserFunction
+ * @see ArgumentReference
+ * @author Frans Englich <frans.englich@nokia.com>
+ * @ingroup Patternist_expressions
+ */
+ class UserFunctionCallsite : public CallSite
+ {
+ public:
+ typedef QExplicitlySharedDataPointer<UserFunctionCallsite> Ptr;
+ typedef QList<UserFunctionCallsite::Ptr> List;
+
+ UserFunctionCallsite(const QXmlName name,
+ const FunctionSignature::Arity arity);
+
+ virtual bool evaluateEBV(const DynamicContext::Ptr &context) const;
+ virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &context) const;
+ virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
+ virtual void evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const;
+
+ virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
+ const SequenceType::Ptr &reqType);
+
+ /**
+ * We call compress on our body.
+ */
+ virtual Expression::Ptr compress(const StaticContext::Ptr &context);
+
+ virtual Expression::Properties properties() const;
+
+ /**
+ * @short Returns the types declared in the function declaration.
+ *
+ * @see CallTemplate::expectedOperandTypes()
+ */
+ virtual SequenceType::List expectedOperandTypes() const;
+
+ virtual SequenceType::Ptr staticType() const;
+ virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
+
+ /**
+ * @returns always IDUserFunctionCallsite.
+ */
+ virtual ID id() const;
+
+ /**
+ * If @p slotOffset is -1, it means this function has no arguments.
+ */
+ void setSource(const UserFunction::Ptr &userFunction,
+ const VariableSlotID cacheSlotOffset);
+
+ /**
+ * @returns @c true, if a function definition with signature @p sign
+ * would be valid to call from this callsite, otherwise @c false.
+ */
+ bool isSignatureValid(const FunctionSignature::Ptr &sign) const;
+
+ FunctionSignature::Arity arity() const;
+
+ inline Expression::Ptr body() const
+ {
+ return m_body;
+ }
+
+ virtual bool configureRecursion(const CallTargetDescription::Ptr &sign);
+ virtual CallTargetDescription::Ptr callTargetDescription() const;
+
+ private:
+ /**
+ * Creates a new context sets the arguments, and returns it.
+ */
+ DynamicContext::Ptr bindVariables(const DynamicContext::Ptr &context) const;
+
+ const FunctionSignature::Arity m_arity;
+ /**
+ * The reason this variable, as well as others, aren't const, is that
+ * the binding to the actual function, is resolved after this
+ * UserFunctionCallsite has been created.
+ */
+ VariableSlotID m_expressionSlotOffset;
+
+ /**
+ * @note This may be different from m_functionDeclaration->body(). It
+ * may differ on a per-callsite basis.
+ */
+ Expression::Ptr m_body;
+ UserFunction::Ptr m_functionDeclaration;
+ };
+
+ /**
+ * @short Formats UserFunctionCallsite.
+ *
+ * @relates UserFunctionCallsite
+ */
+ static inline QString formatFunction(const UserFunctionCallsite::Ptr &func)
+ {
+ Q_UNUSED(func);
+ // TODO TODO TODO
+ // TODO Make UserFunctionCallsite always use a FunctionSignature
+ return QLatin1String("<span class='XQuery-function'>") +
+ QString() +
+ //escape(func->name()->toString()) +
+ QLatin1String("</span>");
+ }
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif