itdefn.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 65 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
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*  ========================================================================
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
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****************************************************************************/


#ifndef _ITDEFN_H_INCLUDED
#define _ITDEFN_H_INCLUDED

#include "symtypes.h"
#include "opr.h"
#include "opn.h"

// Definition of an INTERNAL TEXT NODE:
// ====================================
typedef struct itnode {
    struct itnode       *link;          // link to next itnode
    struct itnode       *list;          // link to argument list
    unsigned_16         oprpos;         // position of opr in statement
    unsigned_16         opnpos;         // position of opn in statement
    OPR                 opr;            // delimiter field
    union {
        DSOPN           ds;
        USOPN           us;
    }                   opn;            // operand code value
    unsigned_16         flags;          // flags
    uint                size;           // size of operand
    sym_id              sym_ptr;        // addr of data area (common block)
    ftn_type            value;          // value of constants, parameters
    int                 opnd_size;      // size of operand field
    char                *opnd;          // operand field
    TYPE                typ;            // type of symbol
    char                chsize : 4;     // size of character operand (OPN_SS1)
    char                is_unsigned : 1;// integer constant is unsigned
    char                is_catparen : 1;// left paren matches right paren of
} itnode;

#endif