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macro_rules! not_none { ($bytes:expr) => { match $bytes { Some(bytes) => bytes, None => return Err(Box::new(UnexpectedNullError { msg: "Unexpected null for non-null column".to_string(), })), } } } macro_rules! expression_impls { ($($Source:ident -> $Target:ty),+,) => { $( impl<'a> AsExpression<types::$Source> for $Target { type Expression = Bound<types::$Source, Self>; fn as_expression(self) -> Self::Expression { Bound::new(self) } } impl<'a: 'expr, 'expr> AsExpression<types::$Source> for &'expr $Target { type Expression = Bound<types::$Source, Self>; fn as_expression(self) -> Self::Expression { Bound::new(self) } } impl<'a> AsExpression<types::Nullable<types::$Source>> for $Target { type Expression = Bound<types::Nullable<types::$Source>, Self>; fn as_expression(self) -> Self::Expression { Bound::new(self) } } impl<'a: 'expr, 'expr> AsExpression<types::Nullable<types::$Source>> for &'a $Target { type Expression = Bound<types::Nullable<types::$Source>, Self>; fn as_expression(self) -> Self::Expression { Bound::new(self) } } impl<'a> ToSql<types::Nullable<types::$Source>> for $Target { fn to_sql<W: Write>(&self, out: &mut W) -> Result<IsNull, Box<Error>> { <Self as ToSql<types::$Source>>::to_sql(self, out) } } )+ } } macro_rules! queriable_impls { ($($Source:ident -> $Target:ty),+,) => {$( impl Queriable<types::$Source> for $Target { type Row = Self; fn build(row: Self::Row) -> Self { row } } )+} } macro_rules! primitive_impls { ($($Source:ident -> ($Target:ty, $oid:expr, $array_oid:expr)),+,) => { $( impl NativeSqlType for types::$Source { fn oid(&self) -> u32 { $oid } fn array_oid(&self) -> u32 { $array_oid } fn new() -> Self { types::$Source } } )+ queriable_impls!($($Source -> $Target),+,); expression_impls!($($Source -> $Target),+,); } } mod array; pub mod date_and_time; pub mod floats; mod integers; mod option; mod primitives; mod tuples;