1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
use std::collections::{BTreeMap, HashMap};
use crate::{
InputType, InputValueError, InputValueResult, Name, OutputType, Scalar, ScalarType, Value,
};
#[Scalar(internal, name = "JSONObject")]
impl<T> ScalarType for HashMap<String, T>
where
T: OutputType + InputType,
{
fn parse(value: Value) -> InputValueResult<Self> {
match value {
Value::Object(map) => map
.into_iter()
.map(|(name, value)| Ok((name.to_string(), T::parse(Some(value))?)))
.collect::<Result<_, _>>()
.map_err(InputValueError::propagate),
_ => Err(InputValueError::expected_type(value)),
}
}
fn to_value(&self) -> Value {
let mut map = BTreeMap::new();
for (name, value) in self {
map.insert(Name::new(name), value.to_value());
}
Value::Object(map)
}
}