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fix(es/compat): Transform default-exported class decorators correctly (#8050)

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**Description:**

Process decorators on the class expression on `export default` declaration and ensure to execute tests for the feature.

**Related issue:**

 - Closes #8049
This commit is contained in:
Alessandro Chitolina 2023-10-02 19:30:13 +02:00 committed by GitHub
parent c53a655154
commit a751f1cfaf
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 50 additions and 35 deletions
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7
crates/swc_ecma_transforms_proposal/src/decorator_2022_03.rs
View File

@ -1446,6 +1446,13 @@ impl VisitMut for Decorator202203 {
s.visit_mut_children_with(self);
}
ModuleItem::ModuleDecl(ModuleDecl::ExportDefaultDecl(ExportDefaultDecl {
span: _,
decl: DefaultDecl::Class(c),
})) => {
self.handle_class_expr(&mut c.class, c.ident.as_ref());
s.visit_mut_children_with(self);
}
_ => {
s.visit_mut_children_with(self);
}

6
crates/swc_ecma_transforms_proposal/tests/decorators.rs
View File

@ -43,6 +43,7 @@ fn exec_inner(input: PathBuf) {
}
#[testing::fixture("tests/decorators/**/input.js")]
#[testing::fixture("tests/decorators/**/input.mjs")]
fn fixture(input: PathBuf) {
fixture_inner(input)
}
@ -50,7 +51,10 @@ fn fixture(input: PathBuf) {
fn fixture_inner(input: PathBuf) {
let src = std::fs::read_to_string(&input).unwrap();
let output = input.with_file_name("output.js");
let output = input.with_file_name(format!(
"output.{}",
input.extension().unwrap().to_string_lossy()
));
test_fixture(
syntax_default(),

21
crates/swc_ecma_transforms_proposal/tests/decorators/2022-03-exported/default-anonymous/output.mjs
View File

@ -1,12 +1,11 @@
var _initClass, _dec;
let _A;
_dec = dec;
class A {
static {
[_A, _initClass] = _applyDecs2203R(this, [], [_dec]).c;
}
static {
_initClass();
}
var _initClass, _A;
export default class A {
static{
({ c: [_A, _initClass] } = _apply_decs_2203_r(this, [], [
dec
]));
}
static{
_initClass();
}
}
export { _A as default };

21
crates/swc_ecma_transforms_proposal/tests/decorators/2022-03-exported/default-named/output.mjs
View File

@ -1,12 +1,11 @@
var _initClass, _dec;
let _default2;
_dec = dec;
class _default {
static {
[_default2, _initClass] = _applyDecs2203R(this, [], [_dec]).c;
}
static {
_initClass();
}
var _initClass, _class;
export default class {
static{
({ c: [_class, _initClass] } = _apply_decs_2203_r(this, [], [
dec
]));
}
static{
_initClass();
}
}
export { _default2 as default };

13
crates/swc_ecma_transforms_proposal/tests/decorators/2022-03-exported/member-decorator/output.mjs
View File

@ -1,8 +1,13 @@
var _dec, _init_x;
_dec = dec;
var _init_x;
export class A {
static {
[_init_x] = _applyDecs2203R(this, [[_dec, 0, "x"]], []).e;
static{
({ e: [_init_x] } = _apply_decs_2203_r(this, [
[
dec,
0,
"x"
]
], []));
}
x = _init_x(this);
}

17
crates/swc_ecma_transforms_proposal/tests/decorators/2022-03-exported/named/output.mjs
View File

@ -1,12 +1,13 @@
var _initClass, _dec;
var _initClass;
let _A;
_dec = dec;
class A {
static {
[_A, _initClass] = _applyDecs2203R(this, [], [_dec]).c;
}
static {
_initClass();
}
static {
({ c: [_A, _initClass] } = _apply_decs_2203_r(this, [], [
dec
]));
}
static {
_initClass();
}
}
export { _A as A };