use super::CredentialAttributeSchema;
use ockam_core::lib::*;
use serde::{
de::{Error as DError, SeqAccess, Visitor},
ser::SerializeSeq,
Deserializer, Serializer,
};
#[allow(clippy::ptr_arg)]
pub fn write_attributes<S>(v: &Vec<CredentialAttributeSchema>, s: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let l = if v.is_empty() { None } else { Some(v.len()) };
let mut iter = s.serialize_seq(l)?;
for i in v {
iter.serialize_element(i)?;
}
iter.end()
}
pub fn read_attributes<'de, D>(deserializer: D) -> Result<Vec<CredentialAttributeSchema>, D::Error>
where
D: Deserializer<'de>,
{
struct BufferAttributeVisitor;
impl<'de> Visitor<'de> for BufferAttributeVisitor {
type Value = Vec<CredentialAttributeSchema>;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("expected array of attributes")
}
fn visit_seq<A>(self, mut s: A) -> Result<Vec<CredentialAttributeSchema>, A::Error>
where
A: SeqAccess<'de>,
{
let _l = if let Some(l) = s.size_hint() { l } else { 0 };
let mut buf = Vec::new();
while let Some(a) = s.next_element()? {
#[cfg(all(feature = "no_std", not(feature = "alloc")))]
{
buf.push(a).map_err(|_| DError::invalid_length(_l, &self))?;
}
#[cfg(feature = "alloc")]
{
buf.push(a);
}
}
Ok(buf)
}
}
deserializer.deserialize_seq(BufferAttributeVisitor)
}
#[allow(clippy::ptr_arg)]
pub fn write_byte_string<S>(v: &String, s: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
s.serialize_str(v.as_str())
}
pub fn read_byte_string<'de, D>(deserializer: D) -> Result<String, D::Error>
where
D: Deserializer<'de>,
{
struct ByteStringVisitor;
impl<'de> Visitor<'de> for ByteStringVisitor {
type Value = String;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("expected array of attributes")
}
fn visit_str<E>(self, s: &str) -> Result<String, E>
where
E: DError,
{
Ok(String::from(s))
}
}
deserializer.deserialize_str(ByteStringVisitor)
}