pub enum Keywords {
    Type,
    Enum,
    Import,
    Service,
    Define,
}

impl Keywords {
    pub fn is_keyword(input: &str) -> bool {
        match input {
            "type" | "enum" | "import" | "service" | "define" => true,
            _ => false,
        }
    }
}

impl ToString for Keywords {
    fn to_string(&self) -> String {
        match self {
            Keywords::Type => "type".to_string(),
            Keywords::Enum => "enum".to_string(),
            Keywords::Import => "import".to_string(),
            Keywords::Service => "service".to_string(),
            Keywords::Define => "define".to_string(),
        }
    }
}