def _validate_multitask(node):
validations.raise_if_try_in_node_body(node.body)
if validations.check_if_any_in_block(ast.Return, node.body):
raise errors.TranslateError(
_errormessages.return_unsupported_unless_last)
# this validation is the opposite of the usual funcdef check.
# we must make sure ALL statements are ast.FunctionDef
if any(not isinstance(stmt, ast.FunctionDef) for stmt in node.body):
raise errors.TranslateError(
_errormessages.return_unsupported_unless_last)
if 'items' in dir(node):
if len(node.items) > 1 or len(node.items) <= 0:
raise errors.TranslateError(_errormessages.invalid_with_block)
expr = node.items[0].context_expr
opt_var = node.items[0].optional_vars
else:
expr = node.context_expr
opt_var = node.optional_vars
if not isinstance(expr, ast.Call):
raise errors.TranslateError(_errormessages.invalid_with_block)
# make sure the expression is "multitask()"
func_name = _get_name_without_namespace_from_node(expr.func)
if func_name is not _tasks.multitask.__name__ \
or len(expr.args) > 0 \
or opt_var is None:
raise errors.TranslateError(_errormessages.invalid_with_block)
return opt_var
def _validate_restrictions(node):
if node.handlers or node.orelse:
raise TranslateError(_errormessages.invalid_try_except_orelse)
if validations.check_if_any_in_block(ast.Return, node.body) or\
validations.check_if_any_in_block(ast.Return, node.finalbody):
raise TranslateError(
_errormessages.return_not_supported_in_try_finally)
validations.raise_if_try_in_node_body(node.body)
def _validate_restrictions(node, resources):
if node.orelse:
raise errors.TranslateError(_errormessages.unsupported_orelse_while)
if validations.check_if_any_in_block(ast.Return, node.body):
raise errors.TranslateError(
_errormessages.return_unsupported_unless_last)
if validations.check_if_any_in_block(ast.FunctionDef, node.body):
raise errors.TranslateError(_errormessages.invalid_nested_funcdef)
validations.raise_if_try_in_node_body(node.body)
def _validate_restrictions(node):
if node.orelse:
raise TranslateError(_errormessages.for_else_not_supported)
if not isinstance(node.iter, (ast.Name, ast.Attribute, ast.Call)):
raise TranslateError(_errormessages.invalid_iterable_collection)
if not isinstance(node.target, ast.Name):
raise TranslateError(_errormessages.invalid_for_loop_iterator)
if validations.check_if_any_in_block(ast.Return, node.body):
raise TranslateError(_errormessages.return_unsupported_unless_last)
if validations.check_if_any_in_block(ast.FunctionDef, node.body):
raise TranslateError(_errormessages.invalid_nested_funcdef)
validations.raise_if_try_in_node_body(node.body)
def _validate_task(node, mt_name):
body = node.body
validations.raise_if_try_in_node_body(body)
if validations.check_if_any_in_block(ast.FunctionDef, body):
raise errors.TranslateError(_errormessages.invalid_function_definition)
if validations.check_if_any_in_block(ast.Return, body):
raise errors.TranslateError(
_errormessages.return_unsupported_unless_last)
if len(node.args.args) > 0:
raise errors.TranslateError(_errormessages.invalid_with_block)
decs = node.decorator_list
if len(decs) is not 1 \
or not(isinstance(decs[0], ast.Call)) \
or _get_name_without_namespace_from_node(decs[0].func) != _decorators.task.__name__ \
or len(decs[0].args) is not 1 \
or decs[0].args[0].id is not mt_name.id:
raise errors.TranslateError(_errormessages.invalid_with_block)
return node