giambio/giambio/_layers.py

40 lines
1.0 KiB
Python

import types
from ._traps import join, cancel
class Task:
"""A simple wrapper around a coroutine object"""
def __init__(self, coroutine: types.coroutine):
self.coroutine = coroutine
self.cancelled = False # True if the task gets cancelled
self.exc = None
self.result = None
self.finished = False
def run(self, what=None):
"""Simple abstraction layer over the coroutines ``send`` method"""
return self.coroutine.send(what)
def throw(self, err: Exception):
"""Simple abstraction layer over the coroutines ``throw`` method"""
return self.coroutine.throw(err)
async def join(self):
"""Joins the task"""
return await join(self)
async def cancel(self):
"""Cancels the task"""
await cancel(self)
def __repr__(self):
"""Implements repr(self)"""
return f"Task({self.coroutine}, cancelled={self.cancelled}, exc={repr(self.exc)}, result={self.result}, finished={self.finished})"