swc/ecmascript/transforms/proposal/tests/private-in-object/to-native-fields/method/output.js
Donny/강동윤 e46a842e99
feat(es/parser, es/transform): Implement ergonomic brand checking (#2079)
swc_ecma_parser:
 - Implement parsing of private properties in object literals.

swc_ecma_transforms_base:
 - `fixer`: Handle `const [a = (b, c)]`.

swc_ecma_transforms_compat:
 - `class_properties`: Support ergonomic brand checks. (#2064)

swc_ecma_transforms_proposal:
 - Implement ergonomic brand checks for private fields. (#2064)
2021-09-27 08:03:48 +00:00

12 lines
201 B
JavaScript

var _brand_check_Foo = new WeakSet();
class Foo {
#foo() {
}
test(other) {
return _brand_check_Foo.has(other);
}
constructor(){
_brand_check_Foo.add(this);
}
}