pub(crate) fn de_context_action_out<'a, I>(tokens: &mut ::std::iter::Peekable<I>) -> ::std::result::Result<Option<crate::types::ContextActionOut>, ::aws_smithy_json::deserialize::error::DeserializeError>
where I: Iterator<Item = Result<::aws_smithy_json::deserialize::Token<'a>, ::aws_smithy_json::deserialize::error::DeserializeError>> {
let mut variant = None;
match tokens.next().transpose()? {
Some(::aws_smithy_json::deserialize::Token::ValueNull { .. }) => return Ok(None),
Some(::aws_smithy_json::deserialize::Token::StartObject { .. }) => {
loop {
match tokens.next().transpose()? {
Some(::aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
Some(::aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
if let ::std::option::Option::Some(::std::result::Result::Ok(::aws_smithy_json::deserialize::Token::ValueNull { .. })) = tokens.peek() {
let _ = tokens.next().expect("peek returned a token")?;
continue;
}
let key = key.to_unescaped()?;
if key == "__type" {
::aws_smithy_json::deserialize::token::skip_value(tokens)?;
continue
}
if variant.is_some() {
return Err(::aws_smithy_json::deserialize::error::DeserializeError::custom("encountered mixed variants in union"));
}
variant = match key.as_ref() {
"PUT" => {
Some(crate::types::ContextActionOut::Put(
crate::protocol_serde::shape_context_response::de_context_response(tokens)?
.ok_or_else(|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'PUT' cannot be null"))?
))
}
"REPLACE" => {
Some(crate::types::ContextActionOut::Replace(
crate::protocol_serde::shape_context_response::de_context_response(tokens)?
.ok_or_else(|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'REPLACE' cannot be null"))?
))
}
"DELETE" => {
Some(crate::types::ContextActionOut::Delete(
::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?.map(|s|
s.to_unescaped().map(|u|
u.into_owned()
)
).transpose()?
.ok_or_else(|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'DELETE' cannot be null"))?
))
}
"MOVE" => {
Some(crate::types::ContextActionOut::Move(
crate::protocol_serde::shape_context_response::de_context_response(tokens)?
.ok_or_else(|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'MOVE' cannot be null"))?
))
}
_ => {
::aws_smithy_json::deserialize::token::skip_value(tokens)?;
Some(crate::types::ContextActionOut::Unknown)
}
};
}
other => return Err(::aws_smithy_json::deserialize::error::DeserializeError::custom(format!("expected object key or end object, found: {:?}", other)))
}
}
}
_ => return Err(::aws_smithy_json::deserialize::error::DeserializeError::custom("expected start object or null"))
}
if variant.is_none() {
return Err(::aws_smithy_json::deserialize::error::DeserializeError::custom("Union did not contain a valid variant."))
}
Ok(variant)
}