async def receiver(self):
"""This task waits for Lean responses, updating the server state
(tasks and messages) and triggering events when a response comes."""
if not self.process:
raise ValueError('No Lean server')
unfinished_message = b''
async for data in self.process.stdout:
lines = (unfinished_message + data).split(b'\n')
unfinished_message = lines.pop(
) # usually empty, but can be half a message
for line in lines:
if self.debug_bytes:
print(f'Received {line}')
resp = parse_response(line.decode())
if self.debug:
print(f'Received {resp}')
if isinstance(resp, CurrentTasksResponse):
self.current_tasks = resp.tasks
if not resp.is_running:
self.is_fully_ready.set()
elif isinstance(resp, AllMessagesResponse):
self.messages = resp.msgs
if hasattr(resp, 'seq_num'):
self.responses[resp.seq_num] = resp
self.response_events[resp.seq_num].set()
def lean_reply(self):
"""Called when Lean outputs something."""
data = self.process.readAllStandardOutput().data().decode()
for line in data.strip().split('\n'):
resp = parse_response(line)
if isinstance(resp, InfoResponse):
self.goal_state = resp.record.state
self.state_update.emit()
elif isinstance(resp, CurrentTasksResponse):
self.current_tasks = resp.tasks
if self.is_busy and not resp.is_running:
self.is_ready.emit()
self.is_busy = resp.is_running
elif isinstance(resp, AllMessagesResponse):
self.messages = resp.msgs
for msg in resp.msgs:
if msg.severity == Severity.error:
self.error.emit(msg.text)
self.incoming_message.emit()
async def receiver(self):
"""This task waits for Lean responses, updating the server state
(tasks and messages) and triggering events when a response comes."""
if not self.process:
raise ValueError('No Lean server')
async for data in self.process.stdout:
for line in data.decode().strip().split('\n'):
resp = parse_response(line)
if self.debug:
print(f'Received {resp}')
if isinstance(resp, CurrentTasksResponse):
self.current_tasks = resp.tasks
if not resp.is_running:
self.is_fully_ready.set()
elif isinstance(resp, AllMessagesResponse):
self.messages = resp.msgs
if hasattr(resp, 'seq_num'):
self.responses[resp.seq_num] = resp
self.response_events[resp.seq_num].set()