fix(es/es2015): Fix injection location of this for getter/setter pr…

…operties (#8993)

**Related issue:**

 - Closes #8992

---------

Co-authored-by: magic-akari <[email protected]>

crates/swc/tests/fixture/issues-8xxx/8992/input/.swcrc

@@ -0,0 +1,19 @@
+{
+    "jsc": {
+        "parser": {
+            "syntax": "ecmascript",
+            "jsx": false
+        },
+        "target": "es5",
+        "loose": false,
+        "minify": {
+            "compress": false,
+            "mangle": false
+        }
+    },
+    "module": {
+        "type": "es6"
+    },
+    "minify": false,
+    "isModule": false
+}

crates/swc/tests/fixture/issues-8xxx/8992/input/1.js

@@ -0,0 +1,10 @@
+const myObj = {
+    get foo() {
+        return () => this;
+    },
+};
+
+const fn = myObj.foo;
+
+// should be true
+console.log(fn() === myObj);

crates/swc/tests/fixture/issues-8xxx/8992/input/2.js

@@ -0,0 +1,13 @@
+const o1 = {
+    x: "a",
+    foo() {
+        const o2 = {
+            get [(() => this.x)()]() {
+                return 1;
+            },
+        };
+        console.log(o2.a === 1);
+    },
+};
+
+o1.foo();

crates/swc/tests/fixture/issues-8xxx/8992/output/1.js

@@ -0,0 +1,10 @@
+var myObj = {
+    get foo () {
+        var _this = this;
+        return function() {
+            return _this;
+        };
+    }
+};
+var fn = myObj.foo;
+console.log(fn() === myObj);

crates/swc/tests/fixture/issues-8xxx/8992/output/2.js

@@ -0,0 +1,19 @@
+var _define_enumerable_properties = require("@swc/helpers/_/_define_enumerable_properties");
+var o1 = {
+    x: "a",
+    foo: function foo() {
+        var _this = this;
+        var _obj, _mutatorMap = {};
+        var o2 = (_obj = {}, _mutatorMap[function() {
+            return _this.x;
+        }()] = _mutatorMap[function() {
+            return _this.x;
+        }()] || {}, _mutatorMap[function() {
+            return _this.x;
+        }()].get = function() {
+            return 1;
+        }, _define_enumerable_properties._(_obj, _mutatorMap), _obj);
+        console.log(o2.a === 1);
+    }
+};
+o1.foo();

crates/swc_ecma_compat_es2015/src/arrow.rs

@@ -181,6 +181,22 @@ impl VisitMut for Arrow {
         }
     }
 
+    fn visit_mut_getter_prop(&mut self, f: &mut GetterProp) {
+        f.key.visit_mut_with(self);
+
+        if let Some(body) = &mut f.body {
+            let old_rep = self.hoister.take();
+
+            body.visit_mut_with(self);
+
+            let decl = mem::replace(&mut self.hoister, old_rep).to_stmt();
+
+            if let Some(stmt) = decl {
+                prepend_stmt(&mut body.stmts, stmt);
+            }
+        }
+    }
+
     fn visit_mut_module_items(&mut self, stmts: &mut Vec<ModuleItem>) {
         stmts.visit_mut_children_with(self);
 
@@ -200,6 +216,23 @@ impl VisitMut for Arrow {
             prepend_stmt(&mut script.body, stmt);
         }
     }
+
+    fn visit_mut_setter_prop(&mut self, f: &mut SetterProp) {
+        f.key.visit_mut_with(self);
+        f.param.visit_mut_with(self);
+
+        if let Some(body) = &mut f.body {
+            let old_rep = self.hoister.take();
+
+            body.visit_mut_with(self);
+
+            let decl = mem::replace(&mut self.hoister, old_rep).to_stmt();
+
+            if let Some(stmt) = decl {
+                prepend_stmt(&mut body.stmts, stmt);
+            }
+        }
+    }
 }
 
 impl InjectVars for Arrow {