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71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/*
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* PROGRAM: JRD Access Method
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* MODULE: sym.h
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* DESCRIPTION: Header file for sym.cpp
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#ifndef JRD_SYM_H
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#define JRD_SYM_H
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#include "../common/classes/MetaName.h"
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namespace Jrd {
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/* symbol definitions */
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class UserFunction;
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// This "Symbol" became a mere container for UDFs. DSQL has another Symbol class.
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class Symbol : public pool_alloc<type_sym>
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{
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private:
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Symbol* sym_collision; // collision pointer
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public:
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//enum sym_t {
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//rel, // relation block
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//fld, // field block
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//fun // UDF function block
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//prc, // stored procedure block
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//sql, // SQL request cache block
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//blr, // BLR request cache block
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//label // CVC: I need to track labels if LEAVE is implemented.
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//};
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Firebird::MetaName sym_string; // symbol value
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//sym_t sym_type; // symbol type
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UserFunction* sym_object; // pointer to UDF object
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Symbol* sym_homonym; // homonym pointer
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public:
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explicit Symbol(MemoryPool& p, const Firebird::MetaName& val, //sym_t type,
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UserFunction* object)
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: sym_collision(0), sym_string(p, val), //sym_type(type),
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sym_object(object), sym_homonym(0) { }
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void insert();
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static Symbol* lookup(const Firebird::MetaName&);
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void remove();
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};
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} //namespace Jrd
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#endif // JRD_SYM_H
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