xref: /aosp_15_r20/external/antlr/runtime/C/include/antlr3parser.h (revision 16467b971bd3e2009fad32dd79016f2c7e421deb)

/** \file
 * Base implementation of an ANTLR3 parser.
 *
 *
 */
#ifndef	_ANTLR3_PARSER_H
#define	_ANTLR3_PARSER_H

// [The "BSD licence"]
// Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC
// http://www.temporal-wave.com
// http://www.linkedin.com/in/jimidle
//
// All rights reserved.
//
// 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. The name of the author may not be used to endorse or promote products
//    derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

#include    <antlr3defs.h>
#include    <antlr3baserecognizer.h>

#ifdef __cplusplus
extern "C" {
#endif

/** This is the main interface for an ANTLR3 parser.
 */
typedef	struct ANTLR3_PARSER_struct
{
    /** All superstructure implementers of this interface require a pointer to their selves,
     *  which they can reference using the super pointer here.
     */
    void			* super;

    /** A pointer to the base recognizer, where most of the parser functions actually
     *  live because they are shared between parser and tree parser and this is the
     *  easier way than copying the interface all over the place. Macros hide this
     *  for the generated code so it is easier on the eye (though not the debugger ;-).
     */
    pANTLR3_BASE_RECOGNIZER			rec;

    /** A provider of a tokenstream interface, for the parser to consume
     *  tokens from.
     */
    pANTLR3_TOKEN_STREAM			tstream;

	/** A pointer to a function that installs a debugger object (it also
	 *  installs the debugging versions of the parser methods. This means that
	 *  a non debug parser incurs no overhead because of the debugging stuff.
	 */
	void					(*setDebugListener)	(struct ANTLR3_PARSER_struct	* parser, pANTLR3_DEBUG_EVENT_LISTENER dbg);

    /** A pointer to a function that installs a token stream
     * for the parser.
     */
    void					(*setTokenStream)	(struct ANTLR3_PARSER_struct	* parser, pANTLR3_TOKEN_STREAM);

    /** A pointer to a function that returns the token stream for this
     *  parser.
     */
    pANTLR3_TOKEN_STREAM	(*getTokenStream)	(struct ANTLR3_PARSER_struct	* parser);

    /** Pointer to a function that knows how to free resources of an ANTLR3 parser.
     */
    void			(*free)			(struct ANTLR3_PARSER_struct	* parser);

}
    ANTLR3_PARSER;

#ifdef __cplusplus
}
#endif

#endif