use crate::{pg_sys, FromDatum, IntoDatum};
use pgx_sql_entity_graph::metadata::{
ArgumentError, Returns, ReturnsError, SqlMapping, SqlTranslatable,
};
#[derive(Debug, Clone, Copy)]
pub struct AnyArray {
datum: pg_sys::Datum,
typoid: pg_sys::Oid,
}
impl AnyArray {
pub fn datum(&self) -> pg_sys::Datum {
self.datum
}
pub fn oid(&self) -> pg_sys::Oid {
self.typoid
}
#[inline]
pub fn into<T: FromDatum>(&self) -> Option<T> {
unsafe { T::from_polymorphic_datum(self.datum(), false, self.oid()) }
}
}
impl FromDatum for AnyArray {
const GET_TYPOID: bool = true;
#[inline]
unsafe fn from_datum(_datum: pg_sys::Datum, _is_null: bool) -> Option<AnyArray> {
panic!("Can't create a polymorphic type using from_datum, call FromDatum::from_polymorphic_datum instead")
}
#[inline]
unsafe fn from_polymorphic_datum(
datum: pg_sys::Datum,
is_null: bool,
typoid: pg_sys::Oid,
) -> Option<AnyArray> {
if is_null {
None
} else {
Some(AnyArray { datum, typoid })
}
}
}
impl IntoDatum for AnyArray {
#[inline]
fn into_datum(self) -> Option<pg_sys::Datum> {
Some(self.datum)
}
fn type_oid() -> pg_sys::Oid {
pg_sys::ANYARRAYOID
}
}
unsafe impl SqlTranslatable for AnyArray {
fn argument_sql() -> Result<SqlMapping, ArgumentError> {
Ok(SqlMapping::literal("anyarray"))
}
fn return_sql() -> Result<Returns, ReturnsError> {
Ok(Returns::One(SqlMapping::literal("anyarray")))
}
}