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fix(es/compat): Handle import/export in reserved_word (#7165)

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magic-akari 2023-03-30 16:38:35 +08:00 committed by GitHub
parent b1fb6b655f
commit 065d11cb9b
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1 changed files with 39 additions and 6 deletions
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45
crates/swc_ecma_transforms_compat/src/es3/reserved_word.rs
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@ -30,7 +30,24 @@ struct ReservedWord {
impl Fold for ReservedWord {
noop_fold_type!();
fn fold_export_specifier(&mut self, n: ExportSpecifier) -> ExportSpecifier {
fn fold_export_named_specifier(&mut self, n: ExportNamedSpecifier) -> ExportNamedSpecifier {
let ident = match n.orig {
ModuleExportName::Ident(ident) if ident.is_reserved_in_es3() => ident,
_ => return n,
};
ExportNamedSpecifier {
orig: ident.clone().fold_with(self).into(),
exported: n.exported.or_else(|| Some(ident.into())),
..n
}
}
fn fold_named_export(&mut self, n: NamedExport) -> NamedExport {
if n.src.is_none() {
return n.fold_children_with(self);
}
n
}
@ -39,16 +56,14 @@ impl Fold for ReservedWord {
}
fn fold_import_named_specifier(&mut self, s: ImportNamedSpecifier) -> ImportNamedSpecifier {
if s.imported.is_some() {
if s.local.is_reserved_in_es3() {
ImportNamedSpecifier {
imported: s.imported.or_else(|| Some(s.local.clone().into())),
local: s.local.fold_with(self),
..s
}
} else {
ImportNamedSpecifier {
imported: s.imported.fold_with(self),
..s
}
s
}
}
@ -131,4 +146,22 @@ function utf8CheckByte(_byte) {
);
identical!(export_as_default, "export { Foo as default }");
test!(
::swc_ecma_parser::Syntax::default(),
|_| ReservedWord {
preserve_import: false
},
issue_7164,
r#"
import { int } from './a.js'
console.log(int)
export { int };
"#,
r#"
import { int as _int } from './a.js';
console.log(_int);
export { _int as int };
"#
);
}