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use anyhow::Result;
use lightningcss::{
media_query::MediaList,
rules::{import::ImportRule, layer::LayerName, supports::SupportsCondition},
traits::ToCss,
};
use turbo_rcstr::RcStr;
use turbo_tasks::{ResolvedVc, ValueToString, Vc};
use turbopack_core::{
chunk::{ChunkableModuleReference, ChunkingContext},
issue::IssueSource,
reference::ModuleReference,
reference_type::{CssReferenceSubType, ImportContext},
resolve::{ModuleResolveResult, origin::ResolveOrigin, parse::Request},
};
use crate::{
chunk::CssImport,
code_gen::{CodeGenerateable, CodeGeneration},
references::css_resolve,
};
#[turbo_tasks::value(into = "new", eq = "manual", serialization = "none")]
pub enum ImportAttributes {
LightningCss {
#[turbo_tasks(trace_ignore)]
layer_name: Option<LayerName<'static>>,
#[turbo_tasks(trace_ignore)]
supports: Option<SupportsCondition<'static>>,
#[turbo_tasks(trace_ignore)]
media: MediaList<'static>,
},
}
impl PartialEq for ImportAttributes {
fn eq(&self, _: &Self) -> bool {
false
}
}
impl ImportAttributes {
pub fn new_from_lightningcss(prelude: &ImportRule<'static>) -> Self {
let layer_name = prelude.layer.clone().flatten();
let supports = prelude.supports.clone();
let media = prelude.media.clone();
Self::LightningCss {
layer_name,
supports,
media,
}
}
fn as_reference_import_attributes(&self) -> turbopack_core::reference_type::ImportAttributes {
match self {
ImportAttributes::LightningCss {
layer_name,
supports,
media,
} => turbopack_core::reference_type::ImportAttributes {
layer: layer_name
.as_ref()
.map(|l| l.to_css_string(Default::default()).unwrap())
.map(From::from),
supports: supports
.as_ref()
.map(|s| s.to_css_string(Default::default()).unwrap())
.map(From::from),
media: {
if media.always_matches() {
None
} else {
Some(media.to_css_string(Default::default()).unwrap().into())
}
},
},
}
}
}
#[turbo_tasks::value]
#[derive(Hash, Debug)]
pub struct ImportAssetReference {
pub origin: ResolvedVc<Box<dyn ResolveOrigin>>,
pub request: ResolvedVc<Request>,
pub attributes: ResolvedVc<ImportAttributes>,
pub import_context: Option<ResolvedVc<ImportContext>>,
pub issue_source: IssueSource,
}
#[turbo_tasks::value_impl]
impl ImportAssetReference {
#[turbo_tasks::function]
pub fn new(
origin: ResolvedVc<Box<dyn ResolveOrigin>>,
request: ResolvedVc<Request>,
attributes: ResolvedVc<ImportAttributes>,
import_context: Option<ResolvedVc<ImportContext>>,
issue_source: IssueSource,
) -> Vc<Self> {
Self::cell(ImportAssetReference {
origin,
request,
attributes,
import_context,
issue_source,
})
}
}
#[turbo_tasks::value_impl]
impl ModuleReference for ImportAssetReference {
#[turbo_tasks::function]
async fn resolve_reference(&self) -> Result<Vc<ModuleResolveResult>> {
let own_attrs = self.attributes.await?.as_reference_import_attributes();
let import_context = match (&self.import_context, own_attrs.is_empty()) {
(Some(import_context), true) => Some(*import_context),
(None, false) => Some(
ImportContext::new(
own_attrs.layer.iter().cloned().collect(),
own_attrs.media.iter().cloned().collect(),
own_attrs.supports.iter().cloned().collect(),
)
.to_resolved()
.await?,
),
(Some(import_context), false) => Some(
import_context
.add_attributes(own_attrs.layer, own_attrs.media, own_attrs.supports)
.to_resolved()
.await?,
),
(None, true) => None,
};
Ok(css_resolve(
*self.origin,
*self.request,
CssReferenceSubType::AtImport(import_context),
Some(self.issue_source),
))
}
}
#[turbo_tasks::value_impl]
impl ValueToString for ImportAssetReference {
#[turbo_tasks::function]
async fn to_string(&self) -> Result<Vc<RcStr>> {
Ok(Vc::cell(
format!("import(url) {}", self.request.to_string().await?,).into(),
))
}
}
#[turbo_tasks::value_impl]
impl CodeGenerateable for ImportAssetReference {
#[turbo_tasks::function]
async fn code_generation(
self: Vc<Self>,
_context: Vc<Box<dyn ChunkingContext>>,
) -> Result<Vc<CodeGeneration>> {
let this = &*self.await?;
let mut imports = vec![];
if let Request::Uri {
protocol,
remainder,
..
} = &*this.request.await?
{
imports.push(CssImport::External(ResolvedVc::cell(
format!("{protocol}{remainder}").into(),
)))
}
Ok(CodeGeneration { imports }.into())
}
}
#[turbo_tasks::value_impl]
impl ChunkableModuleReference for ImportAssetReference {}
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