def _exec_(self, source):
source = '''\
(function() {{
{0};
{1};
}})()'''.format(encode_unicode_codepoints(self._source),
encode_unicode_codepoints(source))
source = str(source)
# backward compatibility
with PyV8.JSContext() as ctxt, PyV8.JSEngine() as engine:
js_errors = (PyV8.JSError, IndexError, ReferenceError,
SyntaxError, TypeError)
try:
script = engine.compile(source)
except js_errors as e:
raise exceptions.ProgramError(e)
try:
value = script.run()
except js_errors as e:
raise exceptions.ProgramError(e)
return self.convert(value)
def _extract_result(self, output):
output = output.decode(self._runtime._encoding)
output = output.replace("\r\n", "\n").replace("\r", "\n")
output_last_line = output.split("\n")[-2]
if not output_last_line:
status = value = None
else:
ret = json.loads(output_last_line)
if len(ret) == 1:
ret = [ret[0], None]
status, value = ret
if status == "ok":
return value
elif value.startswith('SyntaxError:'):
raise exceptions.RuntimeError(value)
else:
raise exceptions.ProgramError(value)