#include "ast.h"

#include <stdbool.h>

void ast_free(struct ast *node)
{
    if (node == NULL)
        return;
    // ast void does not need to be freed.
    if (ast_is_if(node))
        ast_free_if(ast_get_if(node));
    else if (ast_is_command(node))
        ast_free_command(ast_get_command(node));
    else if (ast_is_list(node))
        ast_free_list(ast_get_list(node));

    free(node);
}

struct ast *ast_create(enum ast_type type, void *data)
{
    struct ast *node = malloc(sizeof(struct ast));
    if (!node)
        return NULL;

    node->type = type;
    node->data = data;

    return node;
}