diff --git a/es2panda/test/BUILD.gn b/es2panda/test/BUILD.gn
index dcd5afa0e2fb4ee0912207617e226c26458fca3e..56a3aaa6f792e914b980805c340ded1f8fc3ea10 100644
--- a/es2panda/test/BUILD.gn
+++ b/es2panda/test/BUILD.gn
@@ -82,3 +82,16 @@ action("es2abc_compiler_tests") {
 
   outputs = [ "${es2abc_build_path}/keep_es2abc_compiler_tests_run" ]
 }
+
+action("es2abc_hotfix_tests") {
+  script = "${es2abc_root}/test/runner.py"
+
+  deps = es2abc_build_deps
+
+  args = [
+    "--hotfix",
+    rebase_path("${es2abc_build_path}"),
+  ]
+
+  outputs = [ "${es2abc_build_path}/keep_es2abc_hotfix_tests_run" ]
+}
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/base.js b/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..b607d2358b4490bc036878f45f9e6e534e1c8c76
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/base.js
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(()=>{
+    print("anonymous: 1");
+})()
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..be8c47ddf5d2b13c3b6fc80fb326981eee4edfd5
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/base_mod.js
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: add anonymous function, es2abc can specify and throw error.
+
+(()=>{
+    print("anonymous: 1");
+})()
+
+(()=>{
+    print("anonymous: 2");  // add anonymous function
+})()
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a035149a69f98cb0fa1c759e524734ebfbeb4a3e
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-anon-function/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found new anonymous or duplicate name function .#2# not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/base.js b/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..4e806c169f2468909d2b162e9cb15739582f954f
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/base.js
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function A() {
+    print("A");
+}
+
+function B() {
+    print("B");
+}
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..3e85e23106bd94895e3519e0fa60f193e399d623
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/base_mod.js
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: add function which has same name as exits functions, es2abc can specify and throw error.
+
+function A() {
+    print("A");
+    function B() {    // add function B, which has a duplicate name
+        print("A::B");
+    }
+}
+
+function B() {
+    print("B");
+}
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..da1e8c6ab7d6123155f1d00e06bf9040ea3f455d
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-dup-name-function/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found new anonymous or duplicate name function .#1#B not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/base.js b/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..5aa8e624fb64d73ba4b2b4ea70a012722e30b242
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/base.js
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function A() {
+    print("base A()");
+}
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..ce1145f4ed6f1ea404544429f951f423f3dc511d
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/base_mod.js
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: add new lexenv function, function is not in top scope, es2abc can specify and throw error
+
+function A() {
+    print("base A()");
+    function B() {
+        print("patch B()");
+    }
+
+    function C() {
+        B();  // make B become a lexenv, and B is not in top scope
+    }
+
+    C();
+}
diff --git a/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..48879050e5a348ae048aa8b23122ff3a30932d76
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/add-lexenv-1/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found lexenv size changed, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..d8ea343e9216cc1e108c839baad7d2e6f91861a4
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/base.js
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class Car {
+    constructor(brand) {
+        this.carname = brand;
+    }
+    present() {
+        return 'I have a ' + this.carname;
+    }
+}
+
+class Model extends Car {
+    constructor(brand, mod) {
+        super(brand);
+        this.model = mod;
+    }
+    show() {
+        return this.present() + ', it is a ' + this.model;
+    }
+
+    ["123"]() {  // computed properties
+        return 0;
+    }
+}
+
+let myCar = new Model("Ford", "Mustang");
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..96876d2892f699735f3b9861e41904d7c7a0591a
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/base_mod.js
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: add class attributes, which is before computed properties, es2abc can specify and throw error
+
+class Car {
+    constructor(brand) {
+        this.carname = brand;
+    }
+    present() {
+        return 'I have a ' + this.carname;
+    }
+}
+
+class Model extends Car {
+    constructor(brand, mod) {
+        super(brand);
+        this.model = mod;
+    }
+
+    show() {
+        return this.present() + ', it is a ' + this.model;
+    }
+
+    a() {  // an attribute added before computed properties
+
+    }
+
+    ["123"]() {  // computed properties
+        return 0;
+    }
+}
+
+let myCar = new Model("Ford", "Mustang");
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c2769ab6dc4abb2adc0d0ccfb9875a422c6de285
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-class-1/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found class .Model changed, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..150707fb054819247df195559ffe19f1cbee0e49
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/base.js
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function v1() { print("v1") }
+function v2() { print("v2") }
+
+export {
+    v1 as streamV1,
+    v2 as base,
+};
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..070b50ffab9720931ba5f4487b7edb1f43660aa2
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/base_mod.js
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify export variable's name, es2abc can specify and throw error
+
+function v1() { print("v1") }
+function v2() { print("v2") }
+
+export {
+    v1 as streamV1,
+    v2 as patch,  // modify export variable's name from 'base' to 'patch'
+};
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e574e0591d712df221689c96ba8f2ee630f439d
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-1/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found import/export expression changed in _ESModuleRecord, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..150707fb054819247df195559ffe19f1cbee0e49
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/base.js
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function v1() { print("v1") }
+function v2() { print("v2") }
+
+export {
+    v1 as streamV1,
+    v2 as base,
+};
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..7b98e796d62bfe3ec8668bf7e7eecddbbf5d80a6
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/base_mod.js
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: delete export variables, es2abc can specify and throw error
+
+function v1() { print("v1") }
+function v2() { print("v2") }
+
+export {
+    v1 as streamV1,    // delete an export variable
+};
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e574e0591d712df221689c96ba8f2ee630f439d
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-2/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found import/export expression changed in _ESModuleRecord, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..e5000a893bac4ef0b3936efd14ec7873ffab29ea
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/base.js
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function v1() { print("v1") }
+function v2() { print("v2") }
+
+export {v1, v2};
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..3879ad1f98912a92ed4f7f4a6b0438a973005c0a
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/base_mod.js
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: delete export variables, es2abc can specify and throw error
+
+function v1() { print("v1") }
+function v2() { print("v2") }
+
+export {v1};    // delete export variables
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e574e0591d712df221689c96ba8f2ee630f439d
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-export-3/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found import/export expression changed in _ESModuleRecord, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-import/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-import/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..ae16c316925168b4a6ce80b28b56d59e06116a7d
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-import/base.js
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import base from '../hotfix-throwerror/modify-export-1/base.js'
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-import/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-import/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..b692407433d59c3c3d38be9290baf960e91e8a01
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-import/base_mod.js
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify import variables, es2abc can specify and throw error
+
+import streamV1 from '../hotfix-throwerror/modify-export-1/base.js'
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-import/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-import/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e574e0591d712df221689c96ba8f2ee630f439d
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-import/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found import/export expression changed in _ESModuleRecord, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..2dd34836caf1504140ee5e32d5cc5d1d29226d2c
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/base.js
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function A() {
+    var a1 = 1;
+    var a2 = 2;
+    function B() {
+       print(a1);
+    }
+    B();
+  }
+
+A()
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..15d3324fe16461181c7c471bf873241bce2ad404
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/base_mod.js
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify lexenvs, es2abc can specify and throw error
+
+function A() {
+    var a1 = 1;
+    var a2 = 2;
+    function B() {
+       print(a2);   // modify lexenv that used by function B(from a1 to a2)
+    }
+    B();
+  }
+
+A()
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0729488a2a0faca244406e723bdea0c5d38f183f
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-1/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found new lex env added in function .A, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..53c0fb49853945a2c8f73dffca56b436d0a36406
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/base.js
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function A() {
+    var a1 = 1;
+    var a2 = 2;
+    function B() {
+       print(a1 + a2);
+    }
+    B();
+  }
+
+A()
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..2fc81d26a6c6de7e5c344ca1f5c505f0faed5873
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/base_mod.js
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify lexenv, es2abc can specify and throw error
+
+function A() {
+    var a1 = 1;
+    var a3 = 2;  // modify lexenv (from a2 to a3)
+    function B() {
+       print(a1 + a3);
+    }
+    B();
+  }
+
+A()
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0729488a2a0faca244406e723bdea0c5d38f183f
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-2/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found new lex env added in function .A, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..53c0fb49853945a2c8f73dffca56b436d0a36406
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/base.js
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function A() {
+    var a1 = 1;
+    var a2 = 2;
+    function B() {
+       print(a1 + a2);
+    }
+    B();
+  }
+
+A()
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..c31eafd2f69ac9bdcb10cdeac0ce1f0a4ecde6fb
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/base_mod.js
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify lexenv type, es2abc can specify and throw error
+
+function A() {
+    var a1 = 1;
+    function a2() {    // modify lexenv a2's type(from var to function)
+      return 2;
+    }
+    function B() {
+       print(a1 + a2());
+    }
+    B();
+  }
+
+A()
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..eb704505c4782ae8b9f905b672f3585450c400c7
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-3/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found new lex env changed(slot or type) in function .A, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..744471c316a996ec00b86a68d9d854868159c12c
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/base.js
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function makeAdder(x) {
+    return function(y) {
+      return x + y;
+    };
+  }
+
+  var add5 = makeAdder(5);
+  var add10 = makeAdder(10);
+
+  console.log(add5(2));  // 7
+  console.log(add10(2)); // 12
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..e06ed7ff5c6270a94606649d3ec892dbc7282feb
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/base_mod.js
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify lexenv, es2abc can specify and throw error
+
+function makeAdder() {  // In base, use function parameter as lexenv, in patch, lexenv deleted
+    return function(y) {
+        return y;
+    };
+  }
+
+var add5 = makeAdder(5);
+var add10 = makeAdder(10);
+
+print(add5(2));  // 2
+print(add10(2)); // 10
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..48879050e5a348ae048aa8b23122ff3a30932d76
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-4/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found lexenv size changed, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..90551f2ed50eb63e4ef41152d5296587d72508bc
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/base.js
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function a() {
+    var c = 9;
+    for (let i = 1; i < 10; i++){
+        function b() {
+            return i + c;
+        }
+    }
+}
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..2315d1ec5d43fdf5d53fae3c270ef2ee783c2159
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/base_mod.js
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify lexenv, es2abc can specify and throw error
+
+function a() {
+    var c = 9;
+    for (let i = 1; i < 10; i++){
+        function b() {
+            return i + c;
+        }
+    }
+
+    for (let j = 1; j < 10; j++){   // add a for loop that use 'j' as lexenv, function a's lexenv changed
+        function d() {
+            return j + c;
+        }
+    }
+}
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..48879050e5a348ae048aa8b23122ff3a30932d76
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-5/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found lexenv size changed, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/base.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/base.js
new file mode 100644
index 0000000000000000000000000000000000000000..90551f2ed50eb63e4ef41152d5296587d72508bc
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/base.js
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function a() {
+    var c = 9;
+    for (let i = 1; i < 10; i++){
+        function b() {
+            return i + c;
+        }
+    }
+}
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/base_mod.js b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/base_mod.js
new file mode 100644
index 0000000000000000000000000000000000000000..473150a7068807c16698018b4a64a9f0fd473a6e
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/base_mod.js
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Test scenario: modify lexenv, es2abc can specify and throw error
+
+function a() {
+    var c = 9;  // 'c' is lexenv in base, but not a lexenv in patch
+    for (let i = 1; i < 10; i++){
+        function b() {
+            return i;
+        }
+    }
+}
\ No newline at end of file
diff --git a/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/expected.txt b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..48879050e5a348ae048aa8b23122ff3a30932d76
--- /dev/null
+++ b/es2panda/test/hotfix/hotfix-throwerror/modify-lexenv-6/expected.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[Patch] Found lexenv size changed, not supported!
+[Patch] Found unsupported change in file, will not generate patch!
+Error:  [base_mod.js:0:0]
+the size of programs is expected to be 1, but is 0
diff --git a/es2panda/test/runner.py b/es2panda/test/runner.py
index d02b38c33918a6908915706649755d6da0c6d1c9..6ced45f13c9340efb7934b52202c72281d8f3bd6 100755
--- a/es2panda/test/runner.py
+++ b/es2panda/test/runner.py
@@ -130,6 +130,8 @@ def get_args():
     parser.add_argument(
         '--tsc-path', dest='tsc_path', default=None, type=lambda arg: is_directory(parser, arg),
         help='the path of tsc')
+    parser.add_argument('--hotfix', dest='hotfix', action='store_true', default=False,
+        help='run hotfix tests')
 
     return parser.parse_args()
 
@@ -443,7 +445,7 @@ class Runner:
         path_str = test.path
         err_col = {}
         if test.error:
-            err_str = test.error.split('[')[0]
+            err_str = test.error.split('[')[0] if "hotfix" not in test.path else " hotfix throw error failed"
             err_col = {"path" : [path_str], "status": ["fail"], "error" : [test.error], "type" : [err_str]}
         else:
             err_col = {"path" : [path_str], "status": ["fail"], "error" : ["Segmentation fault"],
@@ -833,6 +835,87 @@ class CompilerTest(Test):
         return self
 
 
+class HotfixTest(Test):
+    def __init__(self, test_path):
+        Test.__init__(self, test_path, "")
+
+    def run(self, runner):
+        symbol_table_file = 'base.map'
+        origin_input_file = 'base.js'
+        origin_output_abc = 'base.abc'
+        modified_input_file = 'base_mod.js'
+        modified_output_abc = 'patch.abc'
+
+        gen_base_cmd = runner.cmd_prefix + [runner.es2panda, '--module']
+        gen_base_cmd.extend(['--dump-symbol-table', os.path.join(self.path, symbol_table_file)])
+        gen_base_cmd.extend(['--output', os.path.join(self.path, origin_output_abc)])
+        gen_base_cmd.extend([os.path.join(self.path, origin_input_file)])
+        self.log_cmd(gen_base_cmd)
+
+        gen_patch_cmd = runner.cmd_prefix + [runner.es2panda, '--module', '--generate-patch']
+        gen_patch_cmd.extend(['--input-symbol-table', os.path.join(self.path, symbol_table_file)])
+        gen_patch_cmd.extend(['--output', os.path.join(self.path, modified_output_abc)])
+        gen_patch_cmd.extend([os.path.join(self.path, modified_input_file)])
+        self.log_cmd(gen_patch_cmd)
+
+        process_base = subprocess.Popen(gen_base_cmd, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE)
+        stdout_base, stderr_base = process_base.communicate(timeout=runner.args.es2panda_timeout)
+        if stderr_base:
+            self.passed = False
+            self.error = stderr_base.decode("utf-8", errors="ignore")
+            return self
+
+        process_patch = subprocess.Popen(gen_patch_cmd, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE)
+        stdout_patch, stderr_patch = process_patch.communicate(timeout=runner.args.es2panda_timeout)
+        if stderr_patch:
+            self.passed = False
+            self.error = stderr_patch.decode("utf-8", errors="ignore")
+
+        self.output = stdout_patch.decode("utf-8", errors="ignore") + stderr_patch.decode("utf-8", errors="ignore")
+        expected_path = os.path.join(self.path, 'expected.txt')
+        try:
+            with open(expected_path, 'r') as fp:
+                expected = ''.join(fp.readlines()[13:])  # ignore license description lines
+            self.passed = expected == self.output
+        except Exception:
+            self.passed = False
+
+        if not self.passed:
+            self.error = "expected output:" + os.linesep + expected + os.linesep + "actual output:" + os.linesep +\
+                self.output
+
+        return self
+
+
+class HotfixRunner(Runner):
+    def __init__(self, args):
+        Runner.__init__(self, args, "Hotfix")
+        self.preserve_files = args.error
+        self.test_directory = path.join(self.test_root, "hotfix", "hotfix-throwerror")
+        self.add_directory()
+
+    def __del__(self):
+        if not self.preserve_files:
+            self.clear_directory()
+
+    def add_directory(self):
+        glob_expression = path.join(self.test_directory, "*")
+        self.tests_in_dirs = glob(glob_expression, recursive=False)
+        self.tests += list(map(lambda t: HotfixTest(t), self.tests_in_dirs))
+
+    def clear_directory(self):
+        for test in self.tests_in_dirs:
+            files_in_dir = os.listdir(test)
+            filtered_files = [file for file in files_in_dir if file.endswith(".map") or file.endswith(".abc")]
+            for file in filtered_files:
+                os.remove(os.path.join(test, file))
+
+    def test_path(self, src):
+        return os.path.basename(src)
+
+
 def main():
     args = get_args()
 
@@ -864,6 +947,9 @@ def main():
 
         runners.append(runner)
 
+    if args.hotfix:
+        runners.append(HotfixRunner(args))
+
     failed_tests = 0
 
     for runner in runners: