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use crate::decode::Decode;
use crate::error::BoxDynError;
use crate::postgres::types::PgRecordDecoder;
use crate::postgres::{PgTypeInfo, PgValueRef, Postgres};
use crate::types::Type;
macro_rules! impl_type_for_tuple {
($( $idx:ident : $T:ident ),*) => {
impl<$($T,)*> Type<Postgres> for ($($T,)*) {
#[inline]
fn type_info() -> PgTypeInfo {
PgTypeInfo::RECORD
}
}
impl<$($T,)*> Type<Postgres> for [($($T,)*)] {
#[inline]
fn type_info() -> PgTypeInfo {
PgTypeInfo::RECORD_ARRAY
}
}
impl<$($T,)*> Type<Postgres> for Vec<($($T,)*)> {
#[inline]
fn type_info() -> PgTypeInfo {
<[($($T,)*)] as Type<Postgres>>::type_info()
}
}
impl<'r, $($T,)*> Decode<'r, Postgres> for ($($T,)*)
where
$($T: 'r,)*
$($T: Type<Postgres>,)*
$($T: for<'a> Decode<'a, Postgres>,)*
{
fn decode(value: PgValueRef<'r>) -> Result<Self, BoxDynError> {
#[allow(unused)]
let mut decoder = PgRecordDecoder::new(value)?;
$(let $idx: $T = decoder.try_decode()?;)*
Ok(($($idx,)*))
}
}
};
}
impl_type_for_tuple!(_1: T1);
impl_type_for_tuple!(_1: T1, _2: T2);
impl_type_for_tuple!(_1: T1, _2: T2, _3: T3);
impl_type_for_tuple!(_1: T1, _2: T2, _3: T3, _4: T4);
impl_type_for_tuple!(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5);
impl_type_for_tuple!(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6);
impl_type_for_tuple!(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7);
impl_type_for_tuple!(
_1: T1,
_2: T2,
_3: T3,
_4: T4,
_5: T5,
_6: T6,
_7: T7,
_8: T8
);
impl_type_for_tuple!(
_1: T1,
_2: T2,
_3: T3,
_4: T4,
_5: T5,
_6: T6,
_7: T7,
_8: T8,
_9: T9
);