/* %Z%%M% %I% %E% */

/*
 * Copyright (c) 1990, 1991, 1992, 1995 by Wayne C. Gramlich.
 * All rights reserved.
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * for any purpose is hereby granted without fee provided that the above
 * copyright notice and this permission are retained.  The author makes
 * no representations about the suitability of this software for any purpose.
 * It is provided "as is" without express or implied warranty.
 */

/* This file defines the type definitions needed for expressions: */

#ifndef EXP_TYPES_H
#define EXP_TYPES_H

typedef enum Exp_op_enum		Exp_op;
typedef struct Exp_struct		*Exp;
typedef struct Exp_access_struct	*Exp_access;
typedef struct Exp_assign_struct	*Exp_assign;
typedef struct Exp_binary_struct	*Exp_binary;
typedef struct Exp_define_struct	*Exp_define;
typedef struct Exp_field_struct		*Exp_field;
typedef enum Exp_mode_enum		Exp_mode;
typedef struct Exp_object_struct	*Exp_object;
typedef struct Exp_trinary_struct	*Exp_trinary;
typedef struct Exp_type_struct		*Exp_type;
typedef union Exp_operands_union	Exp_operands;

/* Defining the enum here shuts alint up! */
enum Exp_op_enum {
	Exp_op_add,			/* '+' */
	Exp_op_add_assign,		/* ':+=' */
	Exp_op_add_result,		/* '::+=' */
	Exp_op_and,			/* '&' */
	Exp_op_and_assign,		/* ':&=' */
	Exp_op_and_if,			/* '&&' */
	Exp_op_and_result,		/* '::&=' */
	Exp_op_arithmetic_if,		/* '? :' */
	Exp_op_at,			/* '@' */
	Exp_op_array,			/* Array fetch/store */
	Exp_op_assign,			/* ':=' */
	Exp_op_call,			/* Function call */
	Exp_op_colon,			/* ':' in arith. if, (temp. only */
	Exp_op_convert,			/* Unary '+' */
	Exp_op_define,			/* '::' */
	Exp_op_define_assign,		/* ':@=' */
	Exp_op_define_result,		/* '::@=' */
	Exp_op_divide,			/* '/' */
	Exp_op_divide_assign,		/* ':/=' */
	Exp_op_divide_result,		/* '::/=' */
	Exp_op_dot,			/* '.' */
	Exp_op_equal,			/* '=' */
	Exp_op_error,			/* Error expression */
	Exp_op_greater_than,		/* '>' */
	Exp_op_greater_than_or_equal,	/* '>=' */
	Exp_op_identical,		/* '==' */
	Exp_op_integer,			/* Integer constant */
	Exp_op_left_shift,		/* '<<' */
	Exp_op_left_shift_assign,	/* ':<<=' */
	Exp_op_left_shift_result,	/* '::<<=' */
	Exp_op_less_than,		/* '<' */
	Exp_op_less_than_or_equal,	/* '<=' */
	Exp_op_list,			/* Comma separated expression list */
	Exp_op_minus,			/* Unary '-' */
	Exp_op_multiply,		/* '*' */
	Exp_op_multiply_assign,		/* ':*=' */
	Exp_op_multiply_result,		/* '::*=' */
	Exp_op_not,			/* '!' */
	Exp_op_not_equal,		/* '!=' */
	Exp_op_not_identical,		/* '!==' */
	Exp_op_or,			/* '|' */
	Exp_op_or_assign,		/* ':|=' */
	Exp_op_or_if,			/* '||' */
	Exp_op_or_result,		/* '::|=' */
	Exp_op_post_decrement,		/* '--' */
	Exp_op_post_increment,		/* '++' */
	Exp_op_power,			/* '**' */
	Exp_op_power_assign,		/* ':**=' */
	Exp_op_power_result,		/* '::**=' */
	Exp_op_pre_decrement,		/* '--' */
	Exp_op_pre_increment,		/* '++' */
	Exp_op_remainder,		/* '%' */
	Exp_op_remainder_assign,	/* ':%=' */
	Exp_op_remainder_result,	/* '::%=' */
	Exp_op_result,			/* '::=' */
	Exp_op_reswitch,		/* Reswitch statement */
	Exp_op_right_shift,		/* '>>' */
	Exp_op_right_shift_assign,	/* ':>>=' */
	Exp_op_right_shift_result,	/* '::>>=' */
	Exp_op_string,			/* Character string in double quotes */
	Exp_op_subtract,		/* '-' */
	Exp_op_subtract_assign,		/* ':-=' */
	Exp_op_subtract_result,		/* '::-=' */
	Exp_op_symbol,			/* Symbol from symbol table */
	Exp_op_text,			/* Character string in single quotes */
	Exp_op_xor,			/* '^' */
	Exp_op_xor_assign,		/* ':^=' */
	Exp_op_xor_result,		/* '::^=' */
	Exp_op_twiddle,			/* '~' */
	Exp_op_size			/* Number of operators */
};

enum Exp_mode_enum {
	Exp_mode_read,
	Exp_mode_write
};


#endif /* EXP_TYPES_H */