// /*-------------------------------------------------------------------------
//  *
//  * gramparse.h
//  *		Shared definitions for the "raw" parser (flex and bison phases only)
//  *
//  * NOTE: this file is only meant to be included in the core parsing files,
//  * ie, parser.c, gram.y, scan.l, and keywords.c.  Definitions that are needed
//  * outside the core parser should be in parser.h.
//  *
//  *
//  * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
//  * Portions Copyright (c) 1994, Regents of the University of California
//  *
//  * src/include/parser/gramparse.h
//  *
//  *-------------------------------------------------------------------------
//  */

// #ifndef GRAMPARSE_H
// #define GRAMPARSE_H

// #include "nodes/parsenodes.h"
// #include "parser/scanner.h"

// /*
//  * NB: include gram.h only AFTER including scanner.h, because scanner.h
//  * is what #defines YYLTYPE.
//  */
// #include "parser/gram.h"

// /*
//  * The YY_EXTRA data that a flex scanner allows us to pass around.	Private
//  * state needed for raw parsing/lexing goes here.
//  */
// typedef struct base_yy_extra_type
// {
// 	/*
// 	 * Fields used by the core scanner.
// 	 */
// 	core_yy_extra_type core_yy_extra;

// 	/*
// 	 * State variables for base_yylex().
// 	 */
// 	bool		have_lookahead; /* is lookahead info valid? */
// 	int			lookahead_token;	/* one-token lookahead */
// 	core_YYSTYPE lookahead_yylval;		/* yylval for lookahead token */
// 	YYLTYPE		lookahead_yylloc;		/* yylloc for lookahead token */

// 	/*
// 	 * State variables that belong to the grammar.
// 	 */
// 	List	   *parsetree;		/* final parse result is delivered here */
// } base_yy_extra_type;

// /*
//  * In principle we should use yyget_extra() to fetch the yyextra field
//  * from a yyscanner struct.  However, flex always puts that field first,
//  * and this is sufficiently performance-critical to make it seem worth
//  * cheating a bit to use an inline macro.
//  */
// #define pg_yyget_extra(yyscanner) (*((base_yy_extra_type **) (yyscanner)))


// /* from parser.c */
// extern int base_yylex(YYSTYPE *lvalp, YYLTYPE *llocp,
// 		   core_yyscan_t yyscanner);

// /* from gram.y */
// extern void parser_init(base_yy_extra_type *yyext);
// extern int	base_yyparse(core_yyscan_t yyscanner);

// #endif   /* GRAMPARSE_H */
/*-------------------------------------------------------------------------
 *
 * gramparse.h
 *		Shared definitions for the "raw" parser (flex and bison phases only)
 *
 * NOTE: this file is only meant to be included in the core parsing files,
 * ie, parser.c, gram.y, scan.l, and keywords.c.  Definitions that are needed
 * outside the core parser should be in parser.h.
 *
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/parser/gramparse.h
 *
 *-------------------------------------------------------------------------
 */

#ifndef GRAMPARSE_H
#define GRAMPARSE_H

#include "nodes/parsenodes.h"
#include "parser/scanner.h"

/*
 * NB: include gram.h only AFTER including scanner.h, because scanner.h
 * is what #defines YYLTYPE.
 */
#include "parser/gram.h"

/*
 * The YY_EXTRA data that a flex scanner allows us to pass around.  Private
 * state needed for raw parsing/lexing goes here.
 */
typedef struct base_yy_extra_type
{
	/*
	 * Fields used by the core scanner.
	 */
	core_yy_extra_type core_yy_extra;

	/*
	 * State variables for base_yylex().
	 */
	bool		have_lookahead; /* is lookahead info valid? */
	int			lookahead_token;	/* one-token lookahead */
	core_YYSTYPE lookahead_yylval;		/* yylval for lookahead token */
	YYLTYPE		lookahead_yylloc;		/* yylloc for lookahead token */

	/*
	 * State variables that belong to the grammar.
	 */
	List	   *parsetree;		/* final parse result is delivered here */
} base_yy_extra_type;

/*
 * In principle we should use yyget_extra() to fetch the yyextra field
 * from a yyscanner struct.  However, flex always puts that field first,
 * and this is sufficiently performance-critical to make it seem worth
 * cheating a bit to use an inline macro.
 */
#define pg_yyget_extra(yyscanner) (*((base_yy_extra_type **) (yyscanner)))


/* from parser.c */
extern int base_yylex(YYSTYPE *lvalp, YYLTYPE *llocp,
		   core_yyscan_t yyscanner);

/* from gram.y */
extern void parser_init(base_yy_extra_type *yyext);
extern int	base_yyparse(core_yyscan_t yyscanner);

#endif   /* GRAMPARSE_H */