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use super::AstScanner;
use oxc::ast::ast;
use rolldown_common::{EcmaModuleAstUsage, ImportKind, ImportRecordMeta};
use rolldown_ecmascript_utils::ExpressionExt;
use rustc_hash::FxHashMap;
impl<'me, 'ast: 'me> AstScanner<'me, 'ast> {
pub(crate) fn try_extract_hmr_info_from_hot_accept_call(
&mut self,
call_expr: &ast::CallExpression<'ast>,
) {
if !self.immutable_ctx.options.is_dev_mode_enabled() {
return;
}
// Possible call patterns for `import.meta.hot.accept`:
// - `import.meta.hot.accept()`
// - `import.meta.hot.accept((newModule) => {})`
// - `import.meta.hot.accept('./dep.js', ...)`
// - `import.meta.hot.accept(['./dep1.js', './dep2.js'], ...)`
// Check whether the callee is `import.meta.hot.accept`.
if !call_expr.callee.is_import_meta_hot_accept() {
return;
}
let mut module_request_to_import_record_idx = FxHashMap::default();
match call_expr.arguments.as_slice() {
// `import.meta.hot.accept()`
// `import.meta.hot.accept(<any expression>)`
[] | [_] => {
self.result.ast_usage.insert(EcmaModuleAstUsage::HmrSelfAccept);
}
// `import.meta.hot.accept('./dep.js', <any expression>)`
[ast::Argument::StringLiteral(string_literal), _] => {
module_request_to_import_record_idx.insert(
string_literal.value.as_str().into(),
self.add_import_record(
&string_literal.value,
ImportKind::HotAccept,
call_expr.span,
ImportRecordMeta::empty(),
None,
),
);
}
// `import.meta.hot.accept(['./dep1.js', './dep2.js'], <any expression>)`
[ast::Argument::ArrayExpression(array_expression), _] => {
module_request_to_import_record_idx.extend(
array_expression
.elements
.iter()
.filter_map(|element| {
if let ast::ArrayExpressionElement::StringLiteral(string_literal) = element {
Some(string_literal.value)
} else {
None
}
})
.map(|lit| {
(
lit.as_str().into(),
self.add_import_record(
&lit,
ImportKind::HotAccept,
call_expr.span,
ImportRecordMeta::empty(),
None,
),
)
}),
);
}
_ => {
// TODO(hyf0): Unsupported call pattern, maybe we should raise a warning here?
}
}
self
.result
.hmr_info
.module_request_to_import_record_idx
.extend(module_request_to_import_record_idx);
}
}