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use anyhow::Result;
use turbo_rcstr::rcstr;
use turbo_tasks::{ResolvedVc, Vc};
use turbopack_core::{
asset::{Asset, AssetContent},
chunk::{ChunkableModule, ChunkingContext, availability_info::AvailabilityInfo},
ident::AssetIdent,
module::Module,
module_graph::ModuleGraph,
reference::{ModuleReferences, SingleModuleReference},
};
use crate::async_chunk::chunk_item::AsyncLoaderChunkItem;
/// The AsyncLoaderModule is a module that loads another module async, by
/// putting it into a separate chunk group.
#[turbo_tasks::value]
pub struct AsyncLoaderModule {
pub inner: ResolvedVc<Box<dyn ChunkableModule>>,
pub chunking_context: ResolvedVc<Box<dyn ChunkingContext>>,
pub availability_info: AvailabilityInfo,
}
#[turbo_tasks::value_impl]
impl AsyncLoaderModule {
#[turbo_tasks::function]
pub fn new(
module: ResolvedVc<Box<dyn ChunkableModule>>,
chunking_context: ResolvedVc<Box<dyn ChunkingContext>>,
availability_info: AvailabilityInfo,
) -> Vc<Self> {
Self::cell(AsyncLoaderModule {
inner: module,
chunking_context,
availability_info,
})
}
#[turbo_tasks::function]
pub fn asset_ident_for(module: Vc<Box<dyn ChunkableModule>>) -> Vc<AssetIdent> {
module.ident().with_modifier(rcstr!("async loader"))
}
}
#[turbo_tasks::value_impl]
impl Module for AsyncLoaderModule {
#[turbo_tasks::function]
fn ident(&self) -> Vc<AssetIdent> {
Self::asset_ident_for(*self.inner)
}
#[turbo_tasks::function]
async fn references(self: Vc<Self>) -> Result<Vc<ModuleReferences>> {
Ok(Vc::cell(vec![ResolvedVc::upcast(
SingleModuleReference::new(
*ResolvedVc::upcast(self.await?.inner),
rcstr!("async module"),
)
.to_resolved()
.await?,
)]))
}
}
#[turbo_tasks::value_impl]
impl Asset for AsyncLoaderModule {
#[turbo_tasks::function]
fn content(&self) -> Vc<AssetContent> {
panic!("content() should not be called");
}
}
#[turbo_tasks::value_impl]
impl ChunkableModule for AsyncLoaderModule {
#[turbo_tasks::function]
fn as_chunk_item(
self: ResolvedVc<Self>,
module_graph: ResolvedVc<ModuleGraph>,
chunking_context: ResolvedVc<Box<dyn ChunkingContext>>,
) -> Vc<Box<dyn turbopack_core::chunk::ChunkItem>> {
Vc::upcast(
AsyncLoaderChunkItem {
chunking_context,
module_graph,
module: self,
}
.cell(),
)
}
}
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