swc/ecmascript/transforms/proposal/tests/private-in-object/to-native-fields/multiple-checks/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

16 lines
352 B
JavaScript

var _brand_check_x = new WeakSet(), _brand_check_A = new WeakSet();
class A {
#x = void _brand_check_x.add(this);
#m() {
}
test() {
_brand_check_x.has(this);
_brand_check_A.has(this);
_brand_check_x.has(this);
_brand_check_A.has(this);
}
constructor(){
_brand_check_A.add(this);
}
}