59 lines
2.1 KiB
Rust
59 lines
2.1 KiB
Rust
use crate::extensions::{ErrorLogger, ExtensionContext, ResolveInfo};
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use crate::parser::types::Field;
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use crate::{ContextSelectionSet, OutputType, PathSegment, Positioned, ServerResult, Type, Value};
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/// Resolve an list by executing each of the items concurrently.
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pub async fn resolve_list<'a, T: OutputType + Send + Sync + 'a>(
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ctx: &ContextSelectionSet<'a>,
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field: &Positioned<Field>,
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iter: impl IntoIterator<Item = T>,
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len: Option<usize>,
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) -> ServerResult<Value> {
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let mut futures = len.map(Vec::with_capacity).unwrap_or_default();
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for (idx, item) in iter.into_iter().enumerate() {
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let ctx_idx = ctx.with_index(idx);
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futures.push(async move {
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let ctx_extension = ExtensionContext {
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schema_data: &ctx.schema_env.data,
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query_data: &ctx.query_env.ctx_data,
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};
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if ctx_idx.query_env.extensions.is_empty() {
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OutputType::resolve(&item, &ctx_idx, field)
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.await
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.map_err(|e| e.path(PathSegment::Index(idx)))
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.log_error(&ctx_extension, &ctx_idx.query_env.extensions)
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} else {
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let resolve_info = ResolveInfo {
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resolve_id: ctx_idx.resolve_id,
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path_node: ctx_idx.path_node.as_ref().unwrap(),
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parent_type: &Vec::<T>::type_name(),
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return_type: &T::qualified_type_name(),
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};
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ctx_idx
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.query_env
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.extensions
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.resolve_start(&ctx_extension, &resolve_info);
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let res = OutputType::resolve(&item, &ctx_idx, field)
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.await
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.map_err(|e| e.path(PathSegment::Index(idx)))
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.log_error(&ctx_extension, &ctx_idx.query_env.extensions)?;
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ctx_idx
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.query_env
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.extensions
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.resolve_end(&ctx_extension, &resolve_info);
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Ok(res)
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}
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});
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}
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Ok(Value::List(
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futures_util::future::try_join_all(futures).await?,
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))
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}
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