bazarr/libs/js2py/host/jseval.py

52 lines
1.5 KiB
Python

from ..base import *
import inspect
try:
from js2py.translators.translator import translate_js
except:
pass
@Js
def Eval(code):
local_scope = inspect.stack()[3][0].f_locals['var']
global_scope = this.GlobalObject
# todo fix scope - we have to behave differently if called through variable other than eval
# we will use local scope (default)
globals()['var'] = local_scope
try:
py_code = translate_js(code.to_string().value, '')
except SyntaxError as syn_err:
raise MakeError('SyntaxError', str(syn_err))
lines = py_code.split('\n')
# a simple way to return value from eval. Will not work in complex cases.
has_return = False
for n in xrange(len(lines)):
line = lines[len(lines) - n - 1]
if line.strip():
if line.startswith(' '):
break
elif line.strip() == 'pass':
continue
elif any(
line.startswith(e)
for e in ['return ', 'continue ', 'break', 'raise ']):
break
else:
has_return = True
cand = 'EVAL_RESULT = (%s)\n' % line
try:
compile(cand, '', 'exec')
except SyntaxError:
break
lines[len(lines) - n - 1] = cand
py_code = '\n'.join(lines)
break
#print py_code
executor(py_code)
if has_return:
return globals()['EVAL_RESULT']
def executor(code):
exec (code, globals())