linux-imx

/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>

 */

​

#ifndef EXPR_H

#define EXPR_H

​

#ifdef __cplusplus

extern "C" {

#endif

​

#include <assert.h>

#include <stdio.h>

#include "list.h"

#ifndef __cplusplus

#include <stdbool.h>

#endif

​

struct file {

    struct file *next;

    struct file *parent;

    const char *name;

    int lineno;

};

​

typedef enum tristate {

    no, mod, yes

} tristate;

​

enum expr_type {

    E_NONE, E_OR, E_AND, E_NOT,

    E_EQUAL, E_UNEQUAL, E_LTH, E_LEQ, E_GTH, E_GEQ,

    E_LIST, E_SYMBOL, E_RANGE

};

​

union expr_data {

    struct expr *expr;

    struct symbol *sym;

};

​

struct expr {

    enum expr_type type;

    union expr_data left, right;

};

​

#define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))

#define EXPR_AND(dep1, dep2)    (((dep1)<(dep2))?(dep1):(dep2))

#define EXPR_NOT(dep)       (2-(dep))

​

#define expr_list_for_each_sym(l, e, s) \

    for (e = (l); e && (s = e->right.sym); e = e->left.expr)

​

struct expr_value {

    struct expr *expr;

    tristate tri;

};

​

struct symbol_value {

    void *val;

    tristate tri;

};

​