use std::{fmt::Display, str::FromStr};
use crate::{
query::traits::SqliteKeyword,
result::{SqlParserError, SqliteError},
};
#[derive(Debug)]
pub(crate) struct Nothing;
impl FromStr for Nothing {
type Err = SqliteError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"NOTHING" => Ok(Self),
_ => Err(SqliteError::SqlParser(SqlParserError(
"Keyword NOTHING not found.".into(),
))),
}
}
}
impl Display for Nothing {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "NOTHING")
}
}
impl SqliteKeyword for Nothing {}