May 20, 2025
diff --git a/jerry-core/parser/js/js-lexer.c b/jerry-core/parser/js/js-lexer.c
 {
  uint8_t utf8_buf[6];

 do
 while (size > 0)
  {
    if (*left_p == *right_p)
    {
        return false;
      }
    } while (--escape_size > 0);
  } while (size > 0);
  }

  return true;
 } /* lexer_compare_identifier_to_chars */
diff --git a/tests/jerry/class_static_async_function.js b/tests/jerry/class_static_async_function.js
 // Copyright JS Foundation and other contributors, http://js.foundation
 //
 // 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 check_syntax_error(code) {
    try {
      eval(code)
      assert(false)
    } catch (e) {
      assert(e instanceof SyntaxError)
    }
  }

 check_syntax_error("class C {#static async''");
Original file line number	Diff line number	Diff line change
Expand Up		@@ -3322,7 +3322,7 @@ lexer_compare_identifier_to_chars (const uint8_t left_p, /< left identifier
		{
		uint8_t utf8_buf[6];

		do
		while (size > 0)
		{
		if (left_p == right_p)
		{
Expand DownExpand Up		@@ -3362,7 +3362,7 @@ lexer_compare_identifier_to_chars (const uint8_t left_p, /< left identifier
		return false;
		}
		} while (--escape_size > 0);
		} while (size > 0);
		}

		return true;
		} /* lexer_compare_identifier_to_chars */
Expand Down
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,24 @@
		// Copyright JS Foundation and other contributors, http://js.foundation
		//
		// 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 check_syntax_error(code) {
		try {
		eval(code)
		assert(false)
		} catch (e) {
		assert(e instanceof SyntaxError)
		}
		}

		check_syntax_error("class C {#static async''");