#ifndef AST_H
#define AST_H

#include "lists.h"

enum ast_type
{
    AST_END = 0,
    AST_IF,
    AST_CMD
};

union ast_node
{
    struct ast_if;
    struct ast_cmd;
};

struct ast
{
    enum ast_type type;
    union ast_node data;
};

struct ast_if
{
    struct ast* condition;  
    struct ast* then_clause;
    struct ast* else_clause;
};

struct ast_cmd
{
    struct list* cmd;
};

#endif /* ! AST_H */