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use anyhow::Result;
use serde::{Deserialize, Serialize};
use swc_core::{
common::{DUMMY_SP, util::take::Take},
ecma::ast::{CallExpr, Callee, Expr, ExprOrSpread, Lit},
quote_expr,
};
use turbo_rcstr::RcStr;
use turbo_tasks::{
NonLocalValue, ResolvedVc, ValueToString, Vc, debug::ValueDebugFormat, trace::TraceRawVcs,
};
use turbopack_core::{
chunk::{ChunkableModuleReference, ChunkingContext, ChunkingType, ChunkingTypeOption},
environment::ChunkLoading,
issue::IssueSource,
reference::ModuleReference,
reference_type::EcmaScriptModulesReferenceSubType,
resolve::{
ModuleResolveResult,
origin::{ResolveOrigin, ResolveOriginExt},
parse::Request,
},
};
use turbopack_resolve::ecmascript::esm_resolve;
use super::super::pattern_mapping::{PatternMapping, ResolveType};
use crate::{
analyzer::imports::ImportAnnotations,
code_gen::{CodeGen, CodeGeneration, IntoCodeGenReference},
create_visitor,
references::AstPath,
};
#[turbo_tasks::value]
#[derive(Hash, Debug)]
pub struct EsmAsyncAssetReference {
pub origin: ResolvedVc<Box<dyn ResolveOrigin>>,
pub request: ResolvedVc<Request>,
pub annotations: ImportAnnotations,
pub issue_source: IssueSource,
pub in_try: bool,
pub import_externals: bool,
}
impl EsmAsyncAssetReference {
fn get_origin(&self) -> Vc<Box<dyn ResolveOrigin>> {
if let Some(transition) = self.annotations.transition() {
self.origin.with_transition(transition.into())
} else {
*self.origin
}
}
}
impl EsmAsyncAssetReference {
pub fn new(
origin: ResolvedVc<Box<dyn ResolveOrigin>>,
request: ResolvedVc<Request>,
issue_source: IssueSource,
annotations: ImportAnnotations,
in_try: bool,
import_externals: bool,
) -> Self {
EsmAsyncAssetReference {
origin,
request,
issue_source,
annotations,
in_try,
import_externals,
}
}
}
#[turbo_tasks::value_impl]
impl ModuleReference for EsmAsyncAssetReference {
#[turbo_tasks::function]
async fn resolve_reference(&self) -> Result<Vc<ModuleResolveResult>> {
esm_resolve(
self.get_origin().resolve().await?,
*self.request,
EcmaScriptModulesReferenceSubType::DynamicImport,
self.in_try,
Some(self.issue_source),
)
.await
}
}
#[turbo_tasks::value_impl]
impl ValueToString for EsmAsyncAssetReference {
#[turbo_tasks::function]
async fn to_string(&self) -> Result<Vc<RcStr>> {
Ok(Vc::cell(
format!("dynamic import {}", self.request.to_string().await?,).into(),
))
}
}
#[turbo_tasks::value_impl]
impl ChunkableModuleReference for EsmAsyncAssetReference {
#[turbo_tasks::function]
fn chunking_type(&self) -> Vc<ChunkingTypeOption> {
Vc::cell(Some(ChunkingType::Async))
}
}
impl IntoCodeGenReference for EsmAsyncAssetReference {
fn into_code_gen_reference(
self,
path: AstPath,
) -> (ResolvedVc<Box<dyn ModuleReference>>, CodeGen) {
let reference = self.resolved_cell();
(
ResolvedVc::upcast(reference),
CodeGen::EsmAsyncAssetReferenceCodeGen(EsmAsyncAssetReferenceCodeGen {
reference,
path,
}),
)
}
}
#[derive(PartialEq, Eq, Serialize, Deserialize, TraceRawVcs, ValueDebugFormat, NonLocalValue)]
pub struct EsmAsyncAssetReferenceCodeGen {
path: AstPath,
reference: ResolvedVc<EsmAsyncAssetReference>,
}
impl EsmAsyncAssetReferenceCodeGen {
pub async fn code_generation(
&self,
chunking_context: Vc<Box<dyn ChunkingContext>>,
) -> Result<CodeGeneration> {
let reference = self.reference.await?;
let pm = PatternMapping::resolve_request(
*reference.request,
*reference.origin,
Vc::upcast(chunking_context),
self.reference.resolve_reference(),
if matches!(
*chunking_context.environment().chunk_loading().await?,
ChunkLoading::Edge
) {
ResolveType::ChunkItem
} else {
ResolveType::AsyncChunkLoader
},
)
.await?;
let import_externals = reference.import_externals;
let visitor = create_visitor!(self.path, visit_mut_expr, |expr: &mut Expr| {
let old_expr = expr.take();
let message = if let Expr::Call(CallExpr { args, .. }) = old_expr {
match args.into_iter().next() {
Some(ExprOrSpread {
spread: None,
expr: key_expr,
}) => {
*expr = pm.create_import(*key_expr, import_externals);
return;
}
// These are SWC bugs: https://github.com/swc-project/swc/issues/5394
Some(ExprOrSpread {
spread: Some(_),
expr: _,
}) => "spread operator is illegal in import() expressions.",
_ => "import() expressions require at least 1 argument",
}
} else {
"visitor must be executed on a CallExpr"
};
let error = quote_expr!(
"() => { throw new Error($message); }",
message: Expr = Expr::Lit(Lit::Str(message.into()))
);
*expr = Expr::Call(CallExpr {
callee: Callee::Expr(quote_expr!("Promise.resolve().then")),
args: vec![ExprOrSpread {
spread: None,
expr: error,
}],
span: DUMMY_SP,
..Default::default()
});
});
Ok(CodeGeneration::visitors(vec![visitor]))
}
}
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