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/***********************************************************************
* pexpr.h
* External Declarations associated with pexpr.c
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
***********************************************************************/
#ifndef __PEXPR_H
#define __PEXPR_H
/***********************************************************************
* Type Definitions
***********************************************************************/
typedef enum exprEnum
{
exprUnknown = 0, /* TOS value unknown */
exprAnyOrdinal, /* TOS = any ordinal type */
exprAnyString, /* TOS = any string type */
exprInteger, /* TOS = integer value */
exprReal, /* TOS = real value */
exprChar, /* TOS = character value */
exprBoolean, /* TOS = boolean(integer) value */
exprScalar, /* TOS = scalar(integer) value */
exprString, /* TOS = variable length string reference */
exprStkString, /* TOS = reference to string on string stack */
exprCString, /* TOS = pointer to C string */
exprSet, /* TOS = set(integer) value */
exprArray, /* TOS = array */
exprRecord, /* TOS = record */
exprIntegerPtr, /* TOS = pointer to integer value */
exprRealPtr, /* TOS = pointer to a real value */
exprCharPtr, /* TOS = pointer to a character value */
exprBooleanPtr, /* TOS = pointer to a boolean value */
exprScalarPtr, /* TOS = pointer to a scalar value */
exprSetPtr, /* TOS = pointer to a set value */
exprArrayPtr, /* TOS = pointer to an array */
exprRecordPtr /* TOS = pointer to a record */
} exprType;
/***********************************************************************
* Global Variables
***********************************************************************/
extern int constantToken;
extern sint32 constantInt;
extern float64 constantReal;
extern char *constantStart;
/***********************************************************************
* Global Function Protypes
***********************************************************************/
extern exprType expression ( exprType findExprType, STYPE *typePtr );
extern exprType varParm ( exprType varExprType, STYPE *typePtr );
extern void arrayIndex ( sint32 size );
extern exprType getExprType( STYPE *sType );
extern void constantExpression(void);
#endif /* __PEXPR_H */
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