fix(es): Run esnext transforms on esnext target (#9644)

**Related issue:**

 - Closes #9640
 - Closes #9641

.changeset/beige-moles-grow.md

@@ -0,0 +1,6 @@
+---
+swc: patch
+swc_core: patch
+---
+
+fix(es): Run esnext transforms on esnext target

crates/swc/src/config/mod.rs

@@ -74,9 +74,7 @@ use swc_ecma_visit::{Fold, VisitMutWith};
 
 pub use crate::plugin::PluginConfig;
 use crate::{
-    builder::{should_enable, PassBuilder},
-    dropped_comments_preserver::dropped_comments_preserver,
-    SwcImportResolver,
+    builder::PassBuilder, dropped_comments_preserver::dropped_comments_preserver, SwcImportResolver,
 };
 
 #[cfg(test)]
@@ -712,21 +710,14 @@ impl Options {
                     !disable_all_lints
                 ),
                 // Decorators may use type information
-                Optional::new(
-                    decorator_pass,
-                    should_enable(es_version, EsVersion::EsNext) && syntax.decorators()
-                ),
+                Optional::new(decorator_pass, syntax.decorators()),
                 Optional::new(
                     explicit_resource_management(),
-                    should_enable(es_version, EsVersion::EsNext)
-                        && syntax.explicit_resource_management()
+                    syntax.explicit_resource_management()
                 ),
                 // The transform strips import assertions, so it's only enabled if
                 // keep_import_assertions is false.
-                Optional::new(
-                    import_assertions(),
-                    should_enable(es_version, EsVersion::EsNext) && !keep_import_attributes
-                ),
+                Optional::new(import_assertions(), !keep_import_attributes),
                 Optional::new(
                     typescript::tsx::<Option<&dyn Comments>>(
                         cm.clone(),

crates/swc/tests/exec.rs

@@ -117,6 +117,7 @@ fn create_matrix(entry: &Path) -> Vec<Options> {
         .unwrap_or_default();
 
     [
+        EsVersion::EsNext,
         EsVersion::Es2022,
         EsVersion::Es2021,
         EsVersion::Es2020,

crates/swc/tests/fixture/issues-9xxx/9640/input/.swcrc

@@ -0,0 +1,25 @@
+{
+    "$schema": "https://swc.rs/schema.json",
+    "module": {
+        "type": "es6"
+    },
+    "jsc": {
+        "target": "esnext",
+        "parser": {
+            "syntax": "typescript",
+            "decorators": true,
+            "importAssertions": true
+        },
+        "transform": {
+            "legacyDecorator": true,
+            "decoratorMetadata": true,
+            "useDefineForClassFields": true
+        },
+        "keepClassNames": true,
+        "experimental": {
+            "keepImportAttributes": true,
+            "emitAssertForImportAttributes": false
+        }
+    },
+    "minify": false
+}

crates/swc/tests/fixture/issues-9xxx/9640/input/1.js

@@ -0,0 +1,12 @@
+function computed() {
+    return function (target) {
+        console.log(target)
+    }
+}
+
+class User {
+    @computed()
+    get fullName() {
+        return 'foo'
+    }
+}

crates/swc/tests/fixture/issues-9xxx/9640/output/1.js

@@ -0,0 +1,17 @@
+var _ts_decorate = require("@swc/helpers/_/_ts_decorate");
+var _ts_metadata = require("@swc/helpers/_/_ts_metadata");
+function computed() {
+    return function(target) {
+        console.log(target);
+    };
+}
+let User = class User {
+    get fullName() {
+        return 'foo';
+    }
+};
+_ts_decorate._([
+    computed(),
+    _ts_metadata._("design:type", void 0),
+    _ts_metadata._("design:paramtypes", [])
+], User.prototype, "fullName", null);

crates/swc/tests/fixture/issues-9xxx/9641/input/.swcrc

@@ -0,0 +1,25 @@
+{
+    "$schema": "https://swc.rs/schema.json",
+    "module": {
+        "type": "es6"
+    },
+    "jsc": {
+        "target": "es2015",
+        "parser": {
+            "syntax": "typescript",
+            "decorators": true,
+            "importAssertions": true
+        },
+        "transform": {
+            "legacyDecorator": true,
+            "decoratorMetadata": true,
+            "useDefineForClassFields": true
+        },
+        "keepClassNames": true,
+        "experimental": {
+            "keepImportAttributes": true,
+            "emitAssertForImportAttributes": false
+        }
+    },
+    "minify": false
+}

crates/swc/tests/fixture/issues-9xxx/9641/input/1.js

@@ -0,0 +1,3 @@
+@Injectable()
+export class MyService { }
+

crates/swc/tests/fixture/issues-9xxx/9641/output/1.js

@@ -0,0 +1,6 @@
+import { _ as _ts_decorate } from "@swc/helpers/_/_ts_decorate";
+export class MyService {
+}
+MyService = _ts_decorate([
+    Injectable()
+], MyService);