

// let stdin = 0;
// let stdout = 1;
// let stderr = 2;

fn print(msg: string) #[builtin(Print)] {}
fn println(msg: string) { print(msg + "\n") }

fn file_open(filename: string, mode: string) -> int #[builtin(FileOpen)] {}
fn file_close(file: int) #[builtin(FileClose)] {}
fn file_write_string(file: int, content: string) -> int #[builtin(FileWriteString)] {}
fn file_read_to_string(file: int) -> string #[builtin(FileReadToString)] {}
fn file_flush(file: int) #[builtin(FileFlush)] {}
fn file_eof(file: int) -> bool #[builtin(FileEof)] {}

fn main() {
    let file = file_open("test.txt", "w");
    file_write_string(file, "hello world");
    file_close(file);

    file = file_open("test.txt", "r");
    let content = file_read_to_string(file);
    file_close(file);

    file_write_string(1, content + "\n");
    file_flush(1);
}

