def __or__(self, other):
# These could be implemented in each individual class,
# I'm sure, but for now we have this.
if isinstance(self, group):
if isinstance(other, group):
# group() | group() -> single group
return group(
itertools.chain(self.tasks, other.tasks), app=self.app)
# group() | task -> chord
return chord(self, body=other, app=self._app)
elif isinstance(other, group):
# unroll group with one member
other = maybe_unroll_group(other)
if isinstance(self, _chain):
# chain | group() -> chain
return _chain(seq_concat_item(
self.unchain_tasks(), other), app=self._app)
# task | group() -> chain
return _chain(self, other, app=self.app)
if not isinstance(self, _chain) and isinstance(other, _chain):
# task | chain -> chain
return _chain(seq_concat_seq(
(self,), other.unchain_tasks()), app=self._app)
elif isinstance(other, _chain):
# chain | chain -> chain
return _chain(seq_concat_seq(
self.unchain_tasks(), other.unchain_tasks()), app=self._app)
elif isinstance(self, chord):
# chord | task -> attach to body
sig = self.clone()
sig.body = sig.body | other
return sig
elif isinstance(other, Signature):
if isinstance(self, _chain):
if self.tasks and isinstance(self.tasks[-1], group):
# CHAIN [last item is group] | TASK -> chord
sig = self.clone()
sig.tasks[-1] = chord(
sig.tasks[-1], other, app=self._app)
return sig
elif self.tasks and isinstance(self.tasks[-1], chord):
# CHAIN [last item is chord] -> chain with chord body.
sig = self.clone()
sig.tasks[-1].body = sig.tasks[-1].body | other
return sig
else:
# chain | task -> chain
return _chain(seq_concat_item(
self.unchain_tasks(), other), app=self._app)
# task | task -> chain
return _chain(self, other, app=self._app)
return NotImplemented
def __or__(self, other):
# These could be implemented in each individual class,
# I'm sure, but for now we have this.
if isinstance(self, group):
if isinstance(other, group):
# group() | group() -> single group
return group(
itertools.chain(self.tasks, other.tasks), app=self.app)
# group() | task -> chord
return chord(self, body=other, app=self._app)
elif isinstance(other, group):
# unroll group with one member
other = maybe_unroll_group(other)
if isinstance(self, _chain):
# chain | group() -> chain
return _chain(seq_concat_item(
self.unchain_tasks(), other), app=self._app)
# task | group() -> chain
return _chain(self, other, app=self.app)
if not isinstance(self, _chain) and isinstance(other, _chain):
# task | chain -> chain
return _chain(seq_concat_seq(
(self,), other.unchain_tasks()), app=self._app)
elif isinstance(other, _chain):
# chain | chain -> chain
return _chain(seq_concat_seq(
self.unchain_tasks(), other.unchain_tasks()), app=self._app)
elif isinstance(self, chord):
# chord | task -> attach to body
sig = self.clone()
sig.body = sig.body | other
return sig
elif isinstance(other, Signature):
if isinstance(self, _chain):
if self.tasks and isinstance(self.tasks[-1], group):
# CHAIN [last item is group] | TASK -> chord
sig = self.clone()
sig.tasks[-1] = chord(
sig.tasks[-1], other, app=self._app)
return sig
elif self.tasks and isinstance(self.tasks[-1], chord):
# CHAIN [last item is chord] -> chain with chord body.
sig = self.clone()
sig.tasks[-1].body = sig.tasks[-1].body | other
return sig
else:
# chain | task -> chain
return _chain(seq_concat_item(
self.unchain_tasks(), other), app=self._app)
# task | task -> chain
return _chain(self, other, app=self._app)
return NotImplemented
def test_seq_concat_item(a, b, expected):
res = seq_concat_item(a, b)
assert type(res) is type(expected) # noqa
assert res == expected
def __or__(self, other):
# These could be implemented in each individual class,
# I'm sure, but for now we have this.
if isinstance(other, chord) and len(other.tasks) == 1:
# chord with one header -> header[0] | body
other = other.tasks[0] | other.body
if isinstance(self, group):
if isinstance(other, group):
# group() | group() -> single group
return group(
itertools.chain(self.tasks, other.tasks), app=self.app)
# group() | task -> chord
if len(self.tasks) == 1:
# group(ONE.s()) | other -> ONE.s() | other
# Issue #3323
return self.tasks[0] | other
return chord(self, body=other, app=self._app)
elif isinstance(other, group):
# unroll group with one member
other = maybe_unroll_group(other)
if isinstance(self, _chain):
# chain | group() -> chain
sig = self.clone()
sig.tasks.append(other)
return sig
# task | group() -> chain
return _chain(self, other, app=self.app)
if not isinstance(self, _chain) and isinstance(other, _chain):
# task | chain -> chain
return _chain(
seq_concat_seq((self,), other.tasks), app=self._app)
elif isinstance(other, _chain):
# chain | chain -> chain
sig = self.clone()
if isinstance(sig.tasks, tuple):
sig.tasks = list(sig.tasks)
sig.tasks.extend(other.tasks)
return sig
elif isinstance(self, chord):
# chord(ONE, body) | other -> ONE | body | other
# chord with one header task is unecessary.
if len(self.tasks) == 1:
return self.tasks[0] | self.body | other
# chord | task -> attach to body
sig = self.clone()
sig.body = sig.body | other
return sig
elif isinstance(other, Signature):
if isinstance(self, _chain):
if isinstance(self.tasks[-1], group):
# CHAIN [last item is group] | TASK -> chord
sig = self.clone()
sig.tasks[-1] = chord(
sig.tasks[-1], other, app=self._app)
return sig
elif isinstance(self.tasks[-1], chord):
# CHAIN [last item is chord] -> chain with chord body.
sig = self.clone()
sig.tasks[-1].body = sig.tasks[-1].body | other
return sig
else:
# chain | task -> chain
return _chain(
seq_concat_item(self.tasks, other), app=self._app)
# task | task -> chain
return _chain(self, other, app=self._app)
return NotImplemented
def __or__(self, other):
# These could be implemented in each individual class,
# I'm sure, but for now we have this.
if isinstance(other, chord) and len(other.tasks) == 1:
# chord with one header -> header[0] | body
other = other.tasks[0] | other.body
if isinstance(self, group):
if isinstance(other, group):
# group() | group() -> single group
return group(
itertools.chain(self.tasks, other.tasks), app=self.app)
# group() | task -> chord
if len(self.tasks) == 1:
# group(ONE.s()) | other -> ONE.s() | other
# Issue #3323
return self.tasks[0] | other
return chord(self, body=other, app=self._app)
elif isinstance(other, group):
# unroll group with one member
other = maybe_unroll_group(other)
if isinstance(self, _chain):
# chain | group() -> chain
sig = self.clone()
sig.tasks.append(other)
return sig
# task | group() -> chain
return _chain(self, other, app=self.app)
if not isinstance(self, _chain) and isinstance(other, _chain):
# task | chain -> chain
return _chain(
seq_concat_seq((self,), other.tasks), app=self._app)
elif isinstance(other, _chain):
# chain | chain -> chain
sig = self.clone()
if isinstance(sig.tasks, tuple):
sig.tasks = list(sig.tasks)
sig.tasks.extend(other.tasks)
return sig
elif isinstance(self, chord):
# chord(ONE, body) | other -> ONE | body | other
# chord with one header task is unecessary.
if len(self.tasks) == 1:
return self.tasks[0] | self.body | other
# chord | task -> attach to body
sig = self.clone()
sig.body = sig.body | other
return sig
elif isinstance(other, Signature):
if isinstance(self, _chain):
if isinstance(self.tasks[-1], group):
# CHAIN [last item is group] | TASK -> chord
sig = self.clone()
sig.tasks[-1] = chord(
sig.tasks[-1], other, app=self._app)
return sig
elif isinstance(self.tasks[-1], chord):
# CHAIN [last item is chord] -> chain with chord body.
sig = self.clone()
sig.tasks[-1].body = sig.tasks[-1].body | other
return sig
else:
# chain | task -> chain
return _chain(
seq_concat_item(self.tasks, other), app=self._app)
# task | task -> chain
return _chain(self, other, app=self._app)
return NotImplemented