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macro_rules! not_none { ($bytes:expr) => { match $bytes { Some(bytes) => bytes, None => return Err(Box::new($crate::types::impls::option::UnexpectedNullError { msg: "Unexpected null for non-null column".to_string(), })), } } } macro_rules! expression_impls { ($($Source:ident -> $Target:ty),+,) => { $( impl<'a> $crate::expression::AsExpression<types::$Source> for $Target { type Expression = $crate::expression::bound::Bound<types::$Source, Self>; fn as_expression(self) -> Self::Expression { $crate::expression::bound::Bound::new(self) } } impl<'a, 'expr> $crate::expression::AsExpression<types::$Source> for &'expr $Target { type Expression = $crate::expression::bound::Bound<types::$Source, Self>; fn as_expression(self) -> Self::Expression { $crate::expression::bound::Bound::new(self) } } impl<'a> $crate::expression::AsExpression<$crate::types::Nullable<types::$Source>> for $Target { type Expression = $crate::expression::bound::Bound<$crate::types::Nullable<types::$Source>, Self>; fn as_expression(self) -> Self::Expression { $crate::expression::bound::Bound::new(self) } } impl<'a, 'expr> $crate::expression::AsExpression<$crate::types::Nullable<types::$Source>> for &'a $Target { type Expression = $crate::expression::bound::Bound<$crate::types::Nullable<types::$Source>, Self>; fn as_expression(self) -> Self::Expression { $crate::expression::bound::Bound::new(self) } } impl<'a, DB> $crate::types::ToSql<$crate::types::Nullable<types::$Source>, DB> for $Target where DB: $crate::backend::Backend + $crate::types::HasSqlType<types::$Source>, $Target: $crate::types::ToSql<types::$Source, DB>, { fn to_sql<W: ::std::io::Write>(&self, out: &mut W) -> Result<$crate::types::IsNull, Box<::std::error::Error+Send+Sync>> { $crate::types::ToSql::<types::$Source, DB>::to_sql(self, out) } } )+ } } macro_rules! queryable_impls { ($($Source:ident -> $Target:ty),+,) => {$( impl<DB> $crate::types::FromSqlRow<types::$Source, DB> for $Target where DB: $crate::backend::Backend + $crate::types::HasSqlType<types::$Source>, $Target: $crate::types::FromSql<types::$Source, DB>, { fn build_from_row<R: $crate::row::Row<DB>>(row: &mut R) -> Result<Self, Box<::std::error::Error+Send+Sync>> { $crate::types::FromSql::<types::$Source, DB>::from_sql(row.take()) } } #[cfg(not(feature = "unstable"))] impl<DB> $crate::types::FromSqlRow<$crate::types::Nullable<types::$Source>, DB> for Option<$Target> where DB: $crate::backend::Backend + $crate::types::HasSqlType<types::$Source>, Option<$Target>: $crate::types::FromSql<$crate::types::Nullable<types::$Source>, DB>, { fn build_from_row<R: $crate::row::Row<DB>>(row: &mut R) -> Result<Self, Box<::std::error::Error+Send+Sync>> { $crate::types::FromSql::<$crate::types::Nullable<types::$Source>, DB>::from_sql(row.take()) } } impl<DB> $crate::query_source::Queryable<types::$Source, DB> for $Target where DB: $crate::backend::Backend + $crate::types::HasSqlType<types::$Source>, $Target: $crate::types::FromSqlRow<types::$Source, DB>, { type Row = Self; fn build(row: Self::Row) -> Self { row } } )+} } macro_rules! primitive_impls { ($Source:ident -> ($Target:ty, pg: ($oid:expr, $array_oid:expr), sqlite: ($tpe:ident))) => { #[cfg(feature = "sqlite")] impl types::HasSqlType<types::$Source> for $crate::sqlite::Sqlite { fn metadata() -> $crate::sqlite::SqliteType { $crate::sqlite::SqliteType::$tpe } } primitive_impls!($Source -> ($Target, pg: ($oid, $array_oid))); }; ($Source:ident -> ($Target:ty, pg: ($oid:expr, $array_oid:expr))) => { primitive_impls!($Source -> (pg: ($oid, $array_oid))); primitive_impls!($Source -> $Target); }; ($Source:ident -> (pg: ($oid:expr, $array_oid:expr))) => { #[cfg(feature = "postgres")] impl types::HasSqlType<types::$Source> for $crate::pg::Pg { fn metadata() -> $crate::pg::PgTypeMetadata { $crate::pg::PgTypeMetadata { oid: $oid, array_oid: $array_oid, } } } }; ($Source:ident -> $Target:ty) => { primitive_impls!($Source); queryable_impls!($Source -> $Target,); expression_impls!($Source -> $Target,); }; ($Source:ident) => { impl types::HasSqlType<types::$Source> for $crate::backend::Debug { fn metadata() {} } impl $crate::query_builder::QueryId for types::$Source { type QueryId = Self; fn has_static_query_id() -> bool { true } } impl types::NotNull for types::$Source { } } } pub mod floats; mod integers; pub mod option; mod primitives; mod tuples;