93 lines
2.9 KiB
Rust
93 lines
2.9 KiB
Rust
use crate::{registry, ContextSelectionSet, InputValueType, OutputValueType, Result, Type, Value};
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use graphql_parser::Pos;
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use std::borrow::Cow;
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impl<T: Type> Type for Vec<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: InputValueType> InputValueType for Vec<T> {
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fn parse(value: &Value) -> Option<Self> {
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match value {
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Value::List(values) => {
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let mut result = Vec::new();
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for elem_value in values {
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result.push(InputValueType::parse(elem_value)?);
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}
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Some(result)
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}
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_ => Some(vec![InputValueType::parse(value)?]),
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}
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}
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}
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#[allow(clippy::ptr_arg)]
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#[async_trait::async_trait]
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impl<T: OutputValueType + Send + Sync> OutputValueType for Vec<T> {
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async fn resolve(
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value: &Self,
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ctx: &ContextSelectionSet<'_>,
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pos: Pos,
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) -> Result<serde_json::Value> {
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let mut futures = Vec::with_capacity(value.len());
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for (idx, item) in value.iter().enumerate() {
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let ctx_idx = ctx.with_index(idx);
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futures.push(async move { OutputValueType::resolve(item, &ctx_idx, pos).await });
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}
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Ok(futures::future::try_join_all(futures).await?.into())
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}
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}
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impl<T: Type> Type for &[T] {
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fn type_name() -> Cow<'static, str> {
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Cow::Owned(format!("[{}]", T::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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}
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}
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#[async_trait::async_trait]
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impl<T: OutputValueType + Send + Sync> OutputValueType for &[T] {
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async fn resolve(
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value: &Self,
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ctx: &ContextSelectionSet<'_>,
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pos: Pos,
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) -> Result<serde_json::Value> {
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let mut futures = Vec::with_capacity(value.len());
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for (idx, item) in (*value).iter().enumerate() {
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let ctx_idx = ctx.with_index(idx);
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futures.push(async move { OutputValueType::resolve(item, &ctx_idx, pos).await });
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}
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Ok(futures::future::try_join_all(futures).await?.into())
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}
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}
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#[cfg(test)]
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mod tests {
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use crate::Type;
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#[test]
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fn test_list_type() {
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assert_eq!(Vec::<i32>::type_name(), "[Int!]");
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assert_eq!(Vec::<Option<i32>>::type_name(), "[Int]");
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assert_eq!(Option::<Vec::<Option<i32>>>::type_name(), "[Int]");
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assert_eq!(Vec::<i32>::qualified_type_name(), "[Int!]!");
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assert_eq!(Vec::<Option<i32>>::qualified_type_name(), "[Int]!");
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assert_eq!(Option::<Vec::<Option<i32>>>::qualified_type_name(), "[Int]");
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}
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}
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