58 lines
1.7 KiB
Rust
58 lines
1.7 KiB
Rust
use std::borrow::Cow;
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use std::collections::LinkedList;
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use crate::parser::types::Field;
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use crate::resolver_utils::resolve_list;
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use crate::{
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registry, ContextSelectionSet, InputType, InputValueError, InputValueResult, OutputType,
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Positioned, ServerResult, Type, Value,
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};
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impl<T: Type> Type for LinkedList<T> {
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fn type_name() -> Cow<'static, str> {
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Cow::Owned(format!("[{}]", T::qualified_type_name()))
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}
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fn qualified_type_name() -> String {
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format!("[{}]!", T::qualified_type_name())
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}
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fn create_type_info(registry: &mut registry::Registry) -> String {
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T::create_type_info(registry);
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Self::qualified_type_name()
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}
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}
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impl<T: InputType> InputType for LinkedList<T> {
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fn parse(value: Option<Value>) -> InputValueResult<Self> {
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match value.unwrap_or_default() {
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Value::List(values) => values
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.into_iter()
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.map(|value| InputType::parse(Some(value)))
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.collect::<Result<_, _>>()
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.map_err(InputValueError::propagate),
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value => Ok({
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let mut result = Self::default();
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result
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.push_front(InputType::parse(Some(value)).map_err(InputValueError::propagate)?);
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result
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}),
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}
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}
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fn to_value(&self) -> Value {
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Value::List(self.iter().map(InputType::to_value).collect())
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}
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}
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#[async_trait::async_trait]
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impl<T: OutputType + Send + Sync> OutputType for LinkedList<T> {
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async fn resolve(
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&self,
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ctx: &ContextSelectionSet<'_>,
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field: &Positioned<Field>,
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) -> ServerResult<Value> {
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resolve_list(ctx, field, self, Some(self.len())).await
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}
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}
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