81 lines
3.1 KiB
C++
81 lines
3.1 KiB
C++
/*
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* Copyright (c) 2001-2008
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2008
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* Oracle. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Id: XQFunction.hpp 639 2008-09-01 13:22:54Z jpcs $
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*/
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#ifndef _XQFUNCTION_HPP
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#define _XQFUNCTION_HPP
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#include <xqilla/framework/XQillaExport.hpp>
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#include <xqilla/ast/ASTNodeImpl.hpp>
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#include <xqilla/runtime/Sequence.hpp>
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#include <xqilla/items/ATStringOrDerived.hpp>
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#include <xqilla/context/ItemFactory.hpp>
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#include <xercesc/util/XMLUniDefs.hpp> // because every implementation will use these to define the function name
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#include <vector>
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class SequenceType;
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class XQILLA_API XQFunction : public ASTNodeImpl
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{
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public:
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XQFunction(const XMLCh* name, size_t argsFrom, size_t argsTo, const char* paramDecl, const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
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const XMLCh* getFunctionURI()const;
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const XMLCh* getFunctionName()const;
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const XMLCh* getFunctionSignature() const;
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const VectorOfASTNodes &getArguments() const;
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static const XMLCh XMLChFunctionURI[];
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/** Wraps the arguments in the appropriate conversion functions,
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calls static resolution on them, and constant folds if
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this function's StaticAnalysis is not used */
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ASTNode *resolveArguments(StaticContext *context, bool checkTimezone = false, bool numericFunction = false);
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ASTNode *calculateSRCForArguments(StaticContext *context, bool checkTimezone = false, bool numericFunction = false);
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virtual Result createResult(DynamicContext* context, int flags=0) const;
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virtual Sequence createSequence(DynamicContext* context, int flags=0) const;
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/** casts the expression given as a parameter into the appropriate type and returns the guaranteed correctly typed objects in a sequence */
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virtual Result getParamNumber(size_t number, DynamicContext* context, int flags=0) const;
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/** returns the number of parameters passed into the function */
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size_t getNumArgs() const;
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protected:
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/** Helper method, produces a single ATStringOrDerived from the output of getParamNumber(). If getParamNumber() returns anything other than a single string, an exception is thrown. */
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static const size_t UNLIMITED;
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//parse the supplied string of comma separated arguments into vector of SequenceTypes
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void parseParamDecl(const char* paramString, XPath2MemoryManager *mm);
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const XMLCh *_fName, *_fURI, *_signature;
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const size_t _nArgsFrom, _nArgsTo;
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std::vector<SequenceType*, XQillaAllocator<SequenceType*> > _paramDecl;
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VectorOfASTNodes _args; // The real store for arguments
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};
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#endif
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