MiniRacer.execute failure

[SeaHOH]

Steps to reproduce

Python 3.10.1 (tags/v3.10.1:2cd268a, Dec  6 2021, 19:10:37) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from py_mini_racer import MiniRacer
>>> ctx = MiniRacer()
>>> ctx.eval('var a = 1')
>>>
>>> ctx.execute('var b = 1')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 235, in execute
    ret = self.eval(wrapped_expr, timeout=timeout, max_memory=max_memory)
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 221, in eval
    return MiniRacerValue(self, res).to_python()
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 403, in to_python
    self._raise_from_error()
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 391, in _raise_from_error
    raise JSParseException(msg)
py_mini_racer.py_mini_racer.JSParseException: b'Unknown JavaScript error during parse'
>>>
>>> ctx.eval('''
...     function foo() {
...         return 1
...     }
...     foo()''')
1
>>>
>>> ctx.execute('''
...     function bar() {
...         return 1
...     }
...     bar()''')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 235, in execute
    ret = self.eval(wrapped_expr, timeout=timeout, max_memory=max_memory)
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 221, in eval
    return MiniRacerValue(self, res).to_python()
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 403, in to_python
    self._raise_from_error()
  File "M:\site-packages\py_mini_racer\py_mini_racer.py", line 391, in _raise_from_error
    raise JSParseException(msg)
py_mini_racer.py_mini_racer.JSParseException: b'Unknown JavaScript error during parse'
>>>

Expected behavior

All expressions can be evaluated via MiniRacer.execute as same as MiniRacer.eval.

Actual behavior

Some expressions can not be evaluated via MiniRacer.execute.

System configuration

PyMiniRacer version: 0.6.0 win_amd64

Python version: 3.10.1

[SeaHOH]

I had tried use eval to instead of function in source code of MiniRacer.execute, it works. But new issue occurred, the scope has been limited.

[SeaHOH]

Hmm... is there it possible to add a function likes res = ext.mr_json_stringify(ctx, res), intead of the wrapped expression string?

[SeaHOH]

I have used esprima to avoid this issue. https://github.com/SeaHOH/jsengine/commit/5ebe633bc09bb5adb7b391778111b37978abc351