71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
/*
|
|
* Copyright (c) 2001-2006
|
|
* DecisionSoft Limited. All rights reserved.
|
|
* Copyright (c) 2004-2006
|
|
* Progress Software Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2006
|
|
* Oracle. All rights reserved.
|
|
*
|
|
* See the file LICENSE for redistribution information.
|
|
*
|
|
* $Id: XQFunction.hpp,v 1.12 2007/08/16 13:08:26 jpcs Exp $
|
|
*/
|
|
|
|
#ifndef _XQFUNCTION_HPP
|
|
#define _XQFUNCTION_HPP
|
|
|
|
#include <xqilla/framework/XQillaExport.hpp>
|
|
#include <xqilla/ast/ASTNodeImpl.hpp>
|
|
#include <xqilla/runtime/Sequence.hpp>
|
|
#include <xqilla/items/ATStringOrDerived.hpp>
|
|
#include <xqilla/context/ItemFactory.hpp>
|
|
|
|
#include <xercesc/util/XMLUniDefs.hpp> // because every implementation will use these to define the function name
|
|
#include <vector>
|
|
|
|
class SequenceType;
|
|
|
|
class XQILLA_API XQFunction : public ASTNodeImpl
|
|
{
|
|
|
|
public:
|
|
XQFunction(const XMLCh* name, unsigned int argsFrom, unsigned int argsTo, const char* paramDecl, const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
|
|
virtual ~XQFunction();
|
|
|
|
const XMLCh* getFunctionURI()const;
|
|
const XMLCh* getFunctionName()const;
|
|
const XMLCh* getFunctionSignature() const;
|
|
const VectorOfASTNodes &getArguments() const;
|
|
|
|
static const XMLCh XMLChFunctionURI[];
|
|
|
|
/** Wraps the arguments in the appropriate conversion functions,
|
|
calls static resolution on them, and constant folds if
|
|
this function's StaticAnalysis is not used */
|
|
ASTNode *resolveArguments(StaticContext *context, bool checkTimezone = false, bool numericFunction = false);
|
|
ASTNode *calculateSRCForArguments(StaticContext *context, bool checkTimezone = false, bool numericFunction = false);
|
|
|
|
/** casts the expression given as a parameter into the appropriate type and returns the guaranteed correctly typed objects in a sequence */
|
|
virtual Result getParamNumber(unsigned int number, DynamicContext* context, int flags=0) const;
|
|
|
|
/** returns the number of parameters passed into the function */
|
|
unsigned int getNumArgs() const;
|
|
|
|
protected:
|
|
|
|
/** Helper method, produces a single ATStringOrDerived from the output of getParamNumber(). If getParamNumber() returns anything other than a single string, an exception is thrown. */
|
|
static const unsigned int UNLIMITED;
|
|
|
|
//parse the supplied string of comma separated arguments into vector of SequenceTypes
|
|
void parseParamDecl(const char* paramString, XPath2MemoryManager *mm);
|
|
|
|
const XMLCh *_fName, *_fURI, *_signature;
|
|
const unsigned int _nArgsFrom, _nArgsTo;
|
|
|
|
std::vector<SequenceType*, XQillaAllocator<SequenceType*> > _paramDecl;
|
|
|
|
VectorOfASTNodes _args; // The real store for arguments
|
|
|
|
};
|
|
|
|
#endif
|