use std::sync::LazyLock;
use rspack_cacheable::with::AsMap;
use rspack_core::{
Compilation, IndexChunkIdMap, RuntimeGlobals, RuntimeModule, RuntimeModuleGenerateContext,
RuntimeModuleStage, RuntimeTemplate, chunk_graph_chunk::ChunkId, impl_runtime_module,
};
use crate::extract_runtime_globals_from_ejs;
static CHUNK_PREFETCH_TRIGGER_TEMPLATE: &str = include_str!("runtime/chunk_prefetch_trigger.ejs");
static CHUNK_PREFETCH_TRIGGER_RUNTIME_REQUIREMENTS: LazyLock<RuntimeGlobals> =
LazyLock::new(|| extract_runtime_globals_from_ejs(CHUNK_PREFETCH_TRIGGER_TEMPLATE));
#[impl_runtime_module]
#[derive(Debug)]
pub struct ChunkPrefetchTriggerRuntimeModule {
#[cacheable(with=AsMap)]
chunk_map: IndexChunkIdMap<Vec<ChunkId>>,
}
impl ChunkPrefetchTriggerRuntimeModule {
pub fn new(runtime_template: &RuntimeTemplate, chunk_map: IndexChunkIdMap<Vec<ChunkId>>) -> Self {
Self::with_default(runtime_template, chunk_map)
}
}
#[async_trait::async_trait]
impl RuntimeModule for ChunkPrefetchTriggerRuntimeModule {
fn template(&self) -> Vec<(String, String)> {
vec![(
self.id.to_string(),
CHUNK_PREFETCH_TRIGGER_TEMPLATE.to_string(),
)]
}
async fn generate(
&self,
context: &RuntimeModuleGenerateContext<'_>,
) -> rspack_error::Result<String> {
let source = context.runtime_template.render(
&self.id,
Some(serde_json::json!({
"_chunk_map": &self.chunk_map,
})),
)?;
Ok(source)
}
fn stage(&self) -> RuntimeModuleStage {
RuntimeModuleStage::Trigger
}
fn additional_runtime_requirements(&self, _compilation: &Compilation) -> RuntimeGlobals {
*CHUNK_PREFETCH_TRIGGER_RUNTIME_REQUIREMENTS
}
}