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pub(crate) fn de_principals<'a, I>(
tokens: &mut std::iter::Peekable<I>,
) -> Result<
Option<std::vec::Vec<std::string::String>>,
aws_smithy_json::deserialize::error::DeserializeError,
>
where
I: Iterator<
Item = Result<
aws_smithy_json::deserialize::Token<'a>,
aws_smithy_json::deserialize::error::DeserializeError,
>,
>,
{
match tokens.next().transpose()? {
Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
let mut items = Vec::new();
loop {
match tokens.peek() {
Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
tokens.next().transpose().unwrap();
break;
}
_ => {
let value = aws_smithy_json::deserialize::token::expect_string_or_null(
tokens.next(),
)?
.map(|s| s.to_unescaped().map(|u| u.into_owned()))
.transpose()?;
if let Some(value) = value {
items.push(value);
}
}
}
}
Ok(Some(items))
}
_ => Err(
aws_smithy_json::deserialize::error::DeserializeError::custom(
"expected start array or null",
),
),
}
}