use itertools::Itertools;
use rspack_cacheable::{
cacheable, cacheable_dyn,
with::{AsPreset, AsVec},
};
use rspack_core::{
AsContextDependency, Compilation, Dependency, DependencyCategory, DependencyCodeGeneration,
DependencyId, DependencyLocation, DependencyRange, DependencyTemplate, DependencyTemplateType,
DependencyType, ExportsInfoArtifact, ExtendedReferencedExport, FactorizeInfo, InitFragmentKey,
InitFragmentStage, ModuleDependency, ModuleGraph, ModuleGraphCacheArtifact, NormalInitFragment,
RuntimeSpec, TemplateContext, TemplateReplaceSource, UsedName, create_exports_object_referenced,
};
use rspack_util::ext::DynHash;
use swc_core::atoms::Atom;
#[cacheable]
#[derive(Debug, Clone)]
pub struct ProvideDependency {
id: DependencyId,
#[cacheable(with=AsPreset)]
request: Atom,
identifier: String,
#[cacheable(with=AsVec<AsPreset>)]
ids: Vec<Atom>,
range: DependencyRange,
loc: Option<DependencyLocation>,
factorize_info: FactorizeInfo,
}
impl ProvideDependency {
pub fn new(
range: DependencyRange,
request: Atom,
identifier: String,
ids: Vec<Atom>,
loc: Option<DependencyLocation>,
) -> Self {
Self {
range,
request,
loc,
identifier,
ids,
id: DependencyId::new(),
factorize_info: Default::default(),
}
}
}
#[cacheable_dyn]
impl Dependency for ProvideDependency {
fn id(&self) -> &DependencyId {
&self.id
}
fn loc(&self) -> Option<DependencyLocation> {
self.loc.clone()
}
fn category(&self) -> &DependencyCategory {
&DependencyCategory::Esm
}
fn dependency_type(&self) -> &DependencyType {
&DependencyType::Provided
}
fn get_referenced_exports(
&self,
_module_graph: &ModuleGraph,
_module_graph_cache: &ModuleGraphCacheArtifact,
_exports_info_artifact: &ExportsInfoArtifact,
_runtime: Option<&RuntimeSpec>,
) -> Vec<ExtendedReferencedExport> {
if self.ids.is_empty() {
create_exports_object_referenced()
} else {
vec![ExtendedReferencedExport::Array(self.ids.clone())]
}
}
fn could_affect_referencing_module(&self) -> rspack_core::AffectType {
rspack_core::AffectType::True
}
}
#[cacheable_dyn]
impl ModuleDependency for ProvideDependency {
fn request(&self) -> &str {
&self.request
}
fn user_request(&self) -> &str {
&self.request
}
fn factorize_info(&self) -> &FactorizeInfo {
&self.factorize_info
}
fn factorize_info_mut(&mut self) -> &mut FactorizeInfo {
&mut self.factorize_info
}
}
#[cacheable_dyn]
impl DependencyCodeGeneration for ProvideDependency {
fn dependency_template(&self) -> Option<DependencyTemplateType> {
Some(ProvideDependencyTemplate::template_type())
}
fn update_hash(
&self,
hasher: &mut dyn std::hash::Hasher,
_compilation: &Compilation,
_runtime: Option<&RuntimeSpec>,
) {
self.identifier.dyn_hash(hasher);
self.ids.dyn_hash(hasher);
}
}
fn path_to_string(path: Option<&UsedName>) -> String {
match path {
Some(p) => match p {
UsedName::Normal(vec) if !vec.is_empty() => vec
.iter()
.map(|part| format!("[\"{}\"]", part.as_str()))
.join(""),
_ => String::new(),
},
None => String::new(),
}
}
impl AsContextDependency for ProvideDependency {}
#[cacheable]
#[derive(Debug, Clone, Default)]
pub struct ProvideDependencyTemplate;
impl ProvideDependencyTemplate {
pub fn template_type() -> DependencyTemplateType {
DependencyTemplateType::Custom("ProvideDependency")
}
}
impl DependencyTemplate for ProvideDependencyTemplate {
fn render(
&self,
dep: &dyn DependencyCodeGeneration,
source: &mut TemplateReplaceSource,
code_generatable_context: &mut TemplateContext,
) {
let dep = dep
.as_any()
.downcast_ref::<ProvideDependency>()
.expect("ProvideDependencyTemplate should only be used for ProvideDependency");
let TemplateContext {
compilation,
runtime,
runtime_template,
init_fragments,
..
} = code_generatable_context;
let module_graph = compilation.get_module_graph();
let Some(con) = module_graph.connection_by_dependency_id(&dep.id) else {
return;
};
let exports_info = compilation
.exports_info_artifact
.get_exports_info_data(con.module_identifier());
let used_name =
exports_info.get_used_name(&compilation.exports_info_artifact, *runtime, &dep.ids);
init_fragments.push(Box::new(
NormalInitFragment::new(
format!(
"/* provided dependency */ var {} = {}{};\n",
dep.identifier,
runtime_template.module_raw(compilation, dep.id(), dep.request(), dep.weak()),
path_to_string(used_name.as_ref())
),
InitFragmentStage::StageProvides,
1,
InitFragmentKey::ModuleExternal(format!("provided {}", dep.identifier)),
None,
)
.with_top_level_decl_symbols(vec![dep.identifier.clone().into()]),
));
source.replace(dep.range.start, dep.range.end, dep.identifier.clone(), None);
}
}