Fix super in decorators

packages/babel-plugin-proposal-decorators/src/transformer-2023-03.ts

@@ -585,10 +585,19 @@ function transformClass(
   const maybeExtractDecorator = (decorator: t.Decorator) => {
     const { expression } = decorator;
     if (version === "2023-03" && t.isMemberExpression(expression)) {
-      if (!scopeParent.isStatic(expression)) {
-        expression.object = memoiseExpression(expression.object, "obj");
+      let object;
+      if (
+        t.isSuper(expression.object) ||
+        t.isThisExpression(expression.object)
+      ) {
+        object = memoiseExpression(t.thisExpression(), "obj");
+      } else if (!scopeParent.isStatic(expression)) {
+        object = memoiseExpression(expression.object, "obj");
+        expression.object = object;
+      } else {
+        object = expression.object;
       }
-      decoratorsThis.set(decorator, t.cloneNode(expression.object));
+      decoratorsThis.set(decorator, t.cloneNode(object));
     }
     if (!scopeParent.isStatic(expression)) {
       decorator.expression = memoiseExpression(expression, "dec");

packages/babel-plugin-proposal-decorators/test/fixtures/2023-03-misc--to-es2015/super-in-decorator/input.js

@@ -0,0 +1,9 @@
+class A extends B {
+  m() {
+    @(super.dec1)
+    class C {
+      @(super.dec2)
+      m2() {}
+    }
+  }
+}

packages/babel-plugin-proposal-decorators/test/fixtures/2023-03-misc--to-es2015/super-in-decorator/output.js

@@ -0,0 +1,21 @@
+class A extends B {
+  m() {
+    var _initClass, _obj, _dec, _obj2, _dec2, _initProto;
+    let _C;
+    _obj = this;
+    _dec = super.dec1;
+    _obj2 = this;
+    _dec2 = super.dec2;
+    class C {
+      constructor(...args) {
+        _initProto(this);
+      }
+      m2() {}
+    }
+    ({
+      e: [_initProto],
+      c: [_C, _initClass]
+    } = babelHelpers.applyDecs2303(C, [[[1, _obj2, _dec2], 2, "m2"]], [1, _obj, _dec]));
+    _initClass();
+  }
+}

packages/babel-plugin-proposal-decorators/test/fixtures/2023-03-misc/super-in-decorator/input.js

@@ -0,0 +1,9 @@
+class A extends B {
+  m() {
+    @(super.dec1)
+    class C {
+      @(super.dec2)
+      m2() {}
+    }
+  }
+}

packages/babel-plugin-proposal-decorators/test/fixtures/2023-03-misc/super-in-decorator/output.js

@@ -0,0 +1,25 @@
+class A extends B {
+  m() {
+    var _initClass, _obj, _dec, _obj2, _dec2, _initProto;
+    let _C;
+    _obj = this;
+    _dec = super.dec1;
+    _obj2 = this;
+    _dec2 = super.dec2;
+    class C {
+      static {
+        ({
+          e: [_initProto],
+          c: [_C, _initClass]
+        } = babelHelpers.applyDecs2303(this, [[[1, _obj2, _dec2], 2, "m2"]], [1, _obj, _dec]));
+      }
+      constructor(...args) {
+        _initProto(this);
+      }
+      m2() {}
+      static {
+        _initClass();
+      }
+    }
+  }
+}

packages/babel-plugin-proposal-decorators/test/fixtures/2023-03-misc/valid-expression-formats/output.js

@@ -25,7 +25,7 @@ class Foo {
   method() {}
   makeClass() {
     var _obj3, _dec9, _init_bar;
-    return _obj3 = this, _dec9 = _obj3.#a, class Nested {
+    return _obj3 = this, _dec9 = this.#a, class Nested {
       static {
         [_init_bar] = babelHelpers.applyDecs2303(this, [[[1, _obj3, _dec9], 0, "bar"]], []).e;
       }