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refactor(es/compat): Simplify async_to_generator (#10341)
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‎.changeset/nice-laws-buy.md

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@@ -0,0 +1,6 @@
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---
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swc_core: minor
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swc_ecma_compat_es2017: minor
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---
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refactor(es/compat): Simplify async_to_generator

‎crates/swc/tests/fixture/issues-10xxx/10149/1/output/index.ts

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@@ -3,17 +3,18 @@ var _class_call_check = require("@swc/helpers/_/_class_call_check");
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var _create_class = require("@swc/helpers/_/_create_class");
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var _ts_generator = require("@swc/helpers/_/_ts_generator");
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var foo = {
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bar: function bar(param) {
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var name = param.name;
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var _arguments = arguments;
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return _async_to_generator._(function() {
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bar: function bar(_0) {
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return /*#__PURE__*/ _async_to_generator._(function(param) {
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var name;
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var _arguments = arguments;
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return _ts_generator._(this, function(_state) {
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name = param.name;
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console.log("arguments.length", _arguments.length);
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return [
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2
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];
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});
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})();
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}).apply(this, arguments);
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}
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};
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var Foo = /*#__PURE__*/ function() {
@@ -24,27 +25,25 @@ var Foo = /*#__PURE__*/ function() {
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_create_class._(Foo, [
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{
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key: "bar",
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value: function bar(param) {
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var name = param.name;
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var _arguments = arguments;
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return _async_to_generator._(function() {
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value: function bar(_0) {
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return /*#__PURE__*/ _async_to_generator._(function(param) {
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var name;
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var _arguments = arguments;
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return _ts_generator._(this, function(_state) {
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name = param.name;
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console.log("arguments.length", _arguments.length);
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return [
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2
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];
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});
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})();
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}).apply(this, arguments);
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}
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}
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]);
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return Foo;
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}();
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function bar(_) {
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return _bar.apply(this, arguments);
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}
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function _bar() {
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_bar = _async_to_generator._(function(param) {
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function bar(_0) {
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return /*#__PURE__*/ _async_to_generator._(function(param) {
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var name;
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var _arguments = arguments;
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return _ts_generator._(this, function(_state) {
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2
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];
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});
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});
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return _bar.apply(this, arguments);
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}).apply(this, arguments);
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}

‎crates/swc/tests/fixture/issues-10xxx/10149/2/output/index.ts

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Original file line numberDiff line numberDiff line change
@@ -1,26 +1,20 @@
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var _async_to_generator = require("@swc/helpers/_/_async_to_generator");
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var foo = {
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bar ({ name }) {
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var _arguments = arguments;
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return _async_to_generator._(function*() {
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console.log("arguments.length", _arguments.length);
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})();
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bar (_0) {
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return /*#__PURE__*/ _async_to_generator._(function*({ name }) {
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console.log("arguments.length", arguments.length);
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}).apply(this, arguments);
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}
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};
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class Foo {
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bar({ name }) {
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var _arguments = arguments;
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return _async_to_generator._(function*() {
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console.log("arguments.length", _arguments.length);
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})();
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bar(_0) {
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return /*#__PURE__*/ _async_to_generator._(function*({ name }) {
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console.log("arguments.length", arguments.length);
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}).apply(this, arguments);
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}
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}
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function bar(_) {
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return _bar.apply(this, arguments);
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}
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function _bar() {
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_bar = _async_to_generator._(function*({ name }) {
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function bar(_0) {
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return /*#__PURE__*/ _async_to_generator._(function*({ name }) {
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console.log("arguments.length", arguments.length);
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});
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return _bar.apply(this, arguments);
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}).apply(this, arguments);
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}

‎crates/swc/tests/fixture/issues-1xxx/1216/case-1/output/index.js

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@@ -5,49 +5,47 @@ var details = {
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_id: "1"
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};
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function request(path) {
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return _request.apply(this, arguments);
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}
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function _request() {
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_request = _async_to_generator._(function(path) {
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return /*#__PURE__*/ _async_to_generator._(function() {
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return _ts_generator._(this, function(_state) {
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return [
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2,
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"success:".concat(path)
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];
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});
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});
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return _request.apply(this, arguments);
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})();
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}
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_async_to_generator._(function() {
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var obj, _tmp;
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return _ts_generator._(this, function(_state) {
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switch(_state.label){
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case 0:
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if (!(source === "matilda")) return [
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3,
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1
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];
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_tmp = details;
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return [
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3,
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3
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];
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case 1:
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return [
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4,
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request("/".concat(details._id, "?source=").concat(source))
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];
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case 2:
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_tmp = _state.sent();
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_state.label = 3;
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case 3:
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obj = _tmp;
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console.log({
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obj: obj
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});
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return [
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2
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];
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}
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});
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(function() {
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return /*#__PURE__*/ _async_to_generator._(function() {
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var obj, _tmp;
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return _ts_generator._(this, function(_state) {
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switch(_state.label){
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case 0:
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if (!(source === "matilda")) return [
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3,
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1
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];
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_tmp = details;
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return [
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3,
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3
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];
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case 1:
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return [
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4,
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request("/".concat(details._id, "?source=").concat(source))
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];
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case 2:
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_tmp = _state.sent();
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_state.label = 3;
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case 3:
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obj = _tmp;
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console.log({
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obj: obj
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});
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return [
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2
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];
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}
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});
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})();
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})();

‎crates/swc/tests/fixture/issues-1xxx/1216/case-2/output/index.js

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@@ -5,49 +5,47 @@ var details = {
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_id: "1"
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};
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function request(path) {
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return _request.apply(this, arguments);
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}
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function _request() {
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_request = _async_to_generator._(function(path) {
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return /*#__PURE__*/ _async_to_generator._(function() {
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return _ts_generator._(this, function(_state) {
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return [
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2,
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"success:".concat(path)
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];
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});
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});
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return _request.apply(this, arguments);
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})();
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}
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_async_to_generator._(function() {
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var obj, _tmp;
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return _ts_generator._(this, function(_state) {
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switch(_state.label){
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case 0:
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if (!(source === "matilda")) return [
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3,
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1
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];
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_tmp = details;
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return [
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3,
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3
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];
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case 1:
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return [
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4,
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request("/".concat(details._id, "?source=").concat(source))
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];
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case 2:
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_tmp = _state.sent();
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_state.label = 3;
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case 3:
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obj = _tmp;
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console.log({
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obj: obj
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});
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return [
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2
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];
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}
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});
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(function() {
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return /*#__PURE__*/ _async_to_generator._(function() {
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var obj, _tmp;
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return _ts_generator._(this, function(_state) {
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switch(_state.label){
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case 0:
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if (!(source === "matilda")) return [
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3,
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1
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];
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_tmp = details;
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return [
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3,
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3
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];
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case 1:
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return [
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4,
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request("/".concat(details._id, "?source=").concat(source))
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];
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case 2:
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_tmp = _state.sent();
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_state.label = 3;
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case 3:
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obj = _tmp;
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console.log({
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obj: obj
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});
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return [
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2
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];
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}
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});
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})();
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})();

‎crates/swc/tests/fixture/issues-1xxx/1341/case1/output/index.ts

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@@ -2,22 +2,16 @@ var _async_to_generator = require("@swc/helpers/_/_async_to_generator");
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var _define_property = require("@swc/helpers/_/_define_property");
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class A {
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foo() {
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var _this = this;
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return _async_to_generator._(function*() {
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return /*#__PURE__*/ _async_to_generator._(function*() {
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try {
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return yield (function() {
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var _ref = _async_to_generator._(function*(x) {
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return x + _this.val;
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});
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return function(x) {
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return _ref.apply(this, arguments);
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};
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})()("a"); // this is undefined
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return yield ((x)=>/*#__PURE__*/ _async_to_generator._(function*() {
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return x + this.val;
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}).call(this))("a"); // this is undefined
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// return await Promise.all(['a', 'b'].map(async (x) => x + this.val)); // this is undefined
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} catch (e) {
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throw e;
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}
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})();
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}).call(this);
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}
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constructor(){
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_define_property._(this, "val", "1");

‎crates/swc/tests/fixture/issues-1xxx/1449/case1/output/index.js

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@@ -2,17 +2,13 @@ var _async_to_generator = require("@swc/helpers/_/_async_to_generator");
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var _object_destructuring_empty = require("@swc/helpers/_/_object_destructuring_empty");
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var _ts_generator = require("@swc/helpers/_/_ts_generator");
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function foo() {
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return _foo.apply(this, arguments);
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}
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function _foo() {
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_foo = _async_to_generator._(function() {
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return /*#__PURE__*/ _async_to_generator._(function() {
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var tmp, ref;
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return _ts_generator._(this, function(_state) {
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tmp = baz.bar, ref = _object_destructuring_empty._(tmp === void 0 ? {} : tmp);
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return [
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2
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];
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});
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});
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return _foo.apply(this, arguments);
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})();
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}

‎crates/swc/tests/fixture/issues-1xxx/1455/case1/output/index.ts

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var _async_to_generator = require("@swc/helpers/_/_async_to_generator");
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const SampleData = typedModel("SampleVideo", VideosSchema, undefined, undefined, {
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byPlatform: /*#__PURE__*/ function() {
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var _ref = _async_to_generator._(function*(platform) {
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byPlatform: function(platform) {
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return /*#__PURE__*/ _async_to_generator._(function*() {
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const result = yield this.find({
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platform: {
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$eq: platform
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}
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});
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return result;
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});
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return function(platform) {
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return _ref.apply(this, arguments);
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};
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}()
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}).call(this);
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}
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});
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SampleData.byPlatform("youtube").then((res)=>{
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console.info(res);

‎crates/swc/tests/fixture/issues-1xxx/1455/case2/output/index.ts

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platform: platform
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};
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},
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byPlatform: /*#__PURE__*/ function() {
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var _ref = _async_to_generator._(function(platform) {
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byPlatform: function byPlatform(platform) {
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return /*#__PURE__*/ _async_to_generator._(function() {
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var result;
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return _ts_generator._(this, function(_state) {
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switch(_state.label){
@@ -29,11 +29,8 @@ var obj = {
2929
];
3030
}
3131
});
32-
});
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return function(platform) {
34-
return _ref.apply(this, arguments);
35-
};
36-
}()
32+
}).call(this);
33+
}
3734
};
3835
obj.byPlatform("foo").then(function(v) {
3936
return console.log(v);

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