pub(crate) fn de_flow_trace<'a, I>(
tokens: &mut ::std::iter::Peekable<I>,
_value: &'a [u8],
) -> ::std::result::Result<Option<crate::types::FlowTrace>, ::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() {
"nodeInputTrace" => Some(crate::types::FlowTrace::NodeInputTrace(
crate::protocol_serde::shape_flow_trace_node_input_event::de_flow_trace_node_input_event(tokens, _value)?.ok_or_else(
|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'nodeInputTrace' cannot be null"),
)?,
)),
"nodeOutputTrace" => Some(crate::types::FlowTrace::NodeOutputTrace(
crate::protocol_serde::shape_flow_trace_node_output_event::de_flow_trace_node_output_event(tokens, _value)?.ok_or_else(
|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'nodeOutputTrace' cannot be null"),
)?,
)),
"conditionNodeResultTrace" => Some(crate::types::FlowTrace::ConditionNodeResultTrace(
crate::protocol_serde::shape_flow_trace_condition_node_result_event::de_flow_trace_condition_node_result_event(
tokens, _value,
)?
.ok_or_else(|| {
::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'conditionNodeResultTrace' cannot be null")
})?,
)),
"nodeActionTrace" => Some(crate::types::FlowTrace::NodeActionTrace(
crate::protocol_serde::shape_flow_trace_node_action_event::de_flow_trace_node_action_event(tokens, _value)?.ok_or_else(
|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'nodeActionTrace' cannot be null"),
)?,
)),
"nodeDependencyTrace" => Some(crate::types::FlowTrace::NodeDependencyTrace(
crate::protocol_serde::shape_flow_trace_dependency_event::de_flow_trace_dependency_event(tokens, _value)?.ok_or_else(
|| ::aws_smithy_json::deserialize::error::DeserializeError::custom("value for 'nodeDependencyTrace' cannot be null"),
)?,
)),
_ => {
::aws_smithy_json::deserialize::token::skip_value(tokens)?;
Some(crate::types::FlowTrace::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)
}