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""""""
SEARCHING, MATCHED = 1, 2
state = SEARCHING
result = ''
stacksize = 0
for op in dis.get_instructions(frame.f_code):
if state == SEARCHING and op.offset == frame.f_lasti:
if not op.opname.startswith('CALL_FUNCTION'):
raise RuntimeError('get_assigned_name() requires entry at CALL_FUNCTION')
state = MATCHED
# For a top-level expression, the stack-size should be 1 after
# the function at which we entered was executed.
stacksize = 1
elif state == MATCHED:
# Update the would-be size of the stack after this instruction.
# If we're at zero, we found the last instruction of the expression.
try:
stacksize += get_stackdelta(op)
except KeyError:
raise RuntimeError('could not determined assigned name, instruction '
'{} is not supported'.format(op.opname))
if stacksize == 0:
if op.opname not in ('STORE_NAME', 'STORE_ATTR', 'STORE_GLOBAL', 'STORE_FAST'):
raise ValueError('expression is not assigned or branch is not first part of the expression')
return result + op.argval
elif stacksize < 0:
raise ValueError('not a top-level expression')
if op.opname.startswith('CALL_FUNCTION'):
# Chained or nested function call.
raise ValueError('inside a chained or nested function call')
elif op.opname == 'LOAD_ATTR':
result += op.argval + '.'
if not result:
raise RuntimeError('last frame instruction not found')
assert False"
267,"def load_actions(spec, group=None, expr_parser=None):
""""""Each item can be an action name as a string or a dict. When using a dict,
one key/item pair must be the action name and its options and the rest action
decorator names and their options.
Example:
load_actions([""login_required"", {""flash"": {""message"": ""hello world"", ""label"": ""warning""}}])
""""""
if expr_parser is None:
expr_parser = ExpressionParser()
actions = ActionList()
for name in spec:
options = {}
as_ = None
decorators = []
if isinstance(name, dict):
actionspec = dict(name)
as_ = actionspec.pop(""as"", None)
for dec, dec_cls in action_decorators:
if dec in actionspec:
decorators.append((dec_cls, expr_parser.compile(actionspec.pop(dec))))
name, options = actionspec.popitem()
if options:
options = expr_parser.compile(options)
if isinstance(name, Action):
action = name
elif isinstance(name, ActionFunction):
action = name.action
else:
action = action_resolver.resolve_or_delayed(name, options, group, as_)
for dec_cls, arg in decorators:
action = dec_cls(action, arg)
actions.append(action)
return actions"
268,"def load_grouped_actions(spec, default_group=None, key_prefix=""actions"", pop_keys=False, expr_parser=None):
""""""Instanciates actions from a dict. Will look for a key name key_prefix and
for key starting with key_prefix followed by a dot and a group name. A group
name can be any string and will can be used later to filter actions.
Values associated to these keys should be lists that will be loaded using load_actions()
""""""
actions = ActionList()
if expr_parser is None:
expr_parser = ExpressionParser()
for key in spec.keys():
if key != key_prefix and not key.startswith(key_prefix + "".""):
continue
group = default_group
if ""."" in key:
(_, group) = key.split(""."")
actions.extend(load_actions(spec[key], group, expr_parser))
if pop_keys:
spec.pop(key)
return actions"
269,"def create_action_from_dict(name, spec, base_class=ActionsAction, metaclass=type, pop_keys=False):
""""""Creates an action class based on a dict loaded using load_grouped_actions()