Support detect and replace microsoft/tslib's runtime-helpers

[0xdevalias]

Spinning this out into a new issue so it doesn't get lost among the old one, but follow through to the original comment for more of the deep dive/evidence that lead to this being figured out:

Searching my webpacked code (Ref) for functions that have a similar format to the helpers:

⇒ find . -type f -exec grep -E '_[[:alnum:]_]+\s*:\s*function' {} +

# ..snip..
# These don't seem to be @swc/helpers related?
./653.js:          __assign: function () {
./653.js:          __asyncDelegator: function () {
./653.js:          __asyncGenerator: function () {
./653.js:          __asyncValues: function () {
./653.js:          __await: function () {
./653.js:          __awaiter: function () {
./653.js:          __classPrivateFieldGet: function () {
./653.js:          __classPrivateFieldIn: function () {
./653.js:          __classPrivateFieldSet: function () {
./653.js:          __createBinding: function () {
./653.js:          __decorate: function () {
./653.js:          __exportStar: function () {
./653.js:          __extends: function () {
./653.js:          __generator: function () {
./653.js:          __importDefault: function () {
./653.js:          __importStar: function () {
./653.js:          __makeTemplateObject: function () {
./653.js:          __metadata: function () {
./653.js:          __param: function () {
./653.js:          __read: function () {
./653.js:          __rest: function () {
./653.js:          __spread: function () {
./653.js:          __spreadArray: function () {
./653.js:          __spreadArrays: function () {
./653.js:          __values: function () {
# ..snip..
# These don't seem to be @swc/helpers related?
./1f110208.js:          __parse: function (e, t) {
./1f110208.js:          __renderToHTMLTree: function (e, t) {
./1f110208.js:          __setFontMetrics: function (e, t) {
./1f110208.js:          __defineMacro: function (e, t) {
# ..snip..
# These do seem to be @swc/helpers related
./main.js:          _async_to_generator: function () {
./main.js:          _class_call_check: function () {
./main.js:          _construct: function () {
./main.js:          _create_class: function () {
./main.js:          _create_super: function () {
./main.js:          _inherits: function () {
./main.js:          _interop_require_default: function () {
./main.js:          _interop_require_wildcard: function () {
./main.js:          _object_spread: function () {
./main.js:          _object_spread_props: function () {
./main.js:          _object_without_properties: function () {
./main.js:          _sliced_to_array: function () {
./main.js:          _to_consumable_array: function () {
./main.js:          _ts_generator: function () {
./main.js:          _type_of: function () {
./main.js:          _wrap_native_super: function () {
# ..snip..
# These don't seem to be @swc/helpers related?
./pages/payments/success.js:          __assign: function () {
./pages/payments/success.js:          __asyncDelegator: function () {
./pages/payments/success.js:          __asyncGenerator: function () {
./pages/payments/success.js:          __asyncValues: function () {
./pages/payments/success.js:          __await: function () {
./pages/payments/success.js:          __awaiter: function () {
./pages/payments/success.js:          __classPrivateFieldGet: function () {
./pages/payments/success.js:          __classPrivateFieldIn: function () {
./pages/payments/success.js:          __classPrivateFieldSet: function () {
./pages/payments/success.js:          __createBinding: function () {
./pages/payments/success.js:          __decorate: function () {
./pages/payments/success.js:          __exportStar: function () {
./pages/payments/success.js:          __extends: function () {
./pages/payments/success.js:          __generator: function () {
./pages/payments/success.js:          __importDefault: function () {
./pages/payments/success.js:          __importStar: function () {
./pages/payments/success.js:          __makeTemplateObject: function () {
./pages/payments/success.js:          __metadata: function () {
./pages/payments/success.js:          __param: function () {
./pages/payments/success.js:          __read: function () {
./pages/payments/success.js:          __rest: function () {
./pages/payments/success.js:          __spread: function () {
./pages/payments/success.js:          __spreadArray: function () {
./pages/payments/success.js:          __spreadArrays: function () {
./pages/payments/success.js:          __values: function () {
# ..snip..

For the __ helpers that aren't @swc/helpers related, I did a GitHub code search:

• https://github.com/search?type=code&auto_enroll=true&q=__assign+__asyncDelegator+__asyncGenerator+__asyncValues+__await+__awaiter+__classPrivateFieldGet

And it looks like they are probably related to microsoft/tslib:

• https://github.com/microsoft/tslib

  • Runtime library for TypeScript helpers.

  • https://github.com/microsoft/tslib/blob/main/tslib.js#L16-L46

Originally posted by @0xdevalias in #50 (comment)

See Also

• Support detect and replace swc's runtime-helpers #50