aws_sdk_databrew/protocol_serde/
shape_parameter_map.rs1pub(crate) fn de_parameter_map<'a, I>(
3 tokens: &mut ::std::iter::Peekable<I>,
4) -> ::std::result::Result<
5 Option<::std::collections::HashMap<::std::string::String, ::std::string::String>>,
6 ::aws_smithy_json::deserialize::error::DeserializeError,
7>
8where
9 I: Iterator<Item = Result<::aws_smithy_json::deserialize::Token<'a>, ::aws_smithy_json::deserialize::error::DeserializeError>>,
10{
11 match tokens.next().transpose()? {
12 Some(::aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
13 Some(::aws_smithy_json::deserialize::Token::StartObject { .. }) => {
14 let mut map = ::std::collections::HashMap::new();
15 loop {
16 match tokens.next().transpose()? {
17 Some(::aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
18 Some(::aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
19 let key = key.to_unescaped().map(|u| u.into_owned())?;
20 let value = ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
21 .map(|s| s.to_unescaped().map(|u| u.into_owned()))
22 .transpose()?;
23 if let Some(value) = value {
24 map.insert(key, value);
25 }
26 }
27 other => {
28 return Err(::aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
29 "expected object key or end object, found: {:?}",
30 other
31 )))
32 }
33 }
34 }
35 Ok(Some(map))
36 }
37 _ => Err(::aws_smithy_json::deserialize::error::DeserializeError::custom(
38 "expected start object or null",
39 )),
40 }
41}