def _exec_module_patched(mod: ModuleType, exit_after: bool,
transformer: ast.NodeTransformer):
source = inspect.getsource(mod)
tree = compile(source,
mod.__file__,
'exec',
ast.PyCF_ONLY_AST,
dont_inherit=True,
optimize=-1)
if not did_no_code_run_before_untypy_enable(tree):
raise AssertionError(
"Please put 'untypy.enable()' at the start of your module like so:\n"
"\timport untypy\n"
"\tuntypy.enable()")
transformer.visit(tree)
ast.fix_missing_locations(tree)
patched_mod = compile(tree,
mod.__file__,
'exec',
dont_inherit=True,
optimize=-1)
stack = list(map(lambda s: s.frame, inspect.stack()))
try:
exec(patched_mod, mod.__dict__)
except Exception as e:
while e.__traceback__.tb_frame in stack:
e.__traceback__ = e.__traceback__.tb_next
sys.excepthook(type(e), e, e.__traceback__)
if exit_after: sys.exit(-1)
if exit_after: sys.exit(0)
def visit(self, node):
"""Ensure statement only contains allowed nodes."""
if not isinstance(node, self.ALLOWED):
raise SyntaxError('Not allowed in environment markers.\n%s\n%s' %
(self.statement,
(' ' * node.col_offset) + '^'))
return NodeTransformer.visit(self, node)
def visit(self, *args, **kargs):
result = NodeTransformer.visit(self, *args, **kargs)
fix_missing_locations(result)
return result