37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
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use crate::parser::types::Name;
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use crate::{
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GQLScalar, InputValueError, InputValueResult, InputValueType, OutputValueType, ScalarType,
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Value,
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};
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use std::collections::{BTreeMap, HashMap};
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/// A scalar that can represent any JSON Object value.
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#[GQLScalar(internal, name = "JSONObject")]
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impl<T> ScalarType for HashMap<String, T>
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where
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T: OutputValueType + InputValueType + Send + Sync,
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{
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fn parse(value: Value) -> InputValueResult<Self> {
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match value {
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Value::Object(map) => {
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let mut result = HashMap::new();
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for (name, value) in map {
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result.insert(name.to_string(), T::parse(Some(value))?);
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}
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Ok(result)
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}
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_ => Err(InputValueError::ExpectedType(value)),
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}
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}
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fn to_value(&self) -> Value {
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let mut map = BTreeMap::new();
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for (name, value) in self {
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if let Ok(name) = Name::new(name.clone()) {
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map.insert(name, value.to_value());
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}
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}
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Value::Object(map)
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}
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}
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