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trezor-firmware/tools/trezor-pylint-plugin/trezor_pylint_plugin.py

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from astroid import AsyncFunctionDef
from pylint.checkers import BaseChecker
from pylint.checkers.utils import check_messages
from pylint.interfaces import IAstroidChecker
class AsyncAwaitableChecker(BaseChecker):
__implements__ = IAstroidChecker
name = "async-awaitable-checker"
priority = -1
msgs = {
"W9999": (
'Async function "%s" is likely not meant to return an Awaitable.',
"async-awaitable-return",
"Used when an async function returns an Awaitable instead of the result.",
),
}
@check_messages("async-awaitable-return")
def visit_asyncfunctiondef(self, node: AsyncFunctionDef):
# Check if the return type is explicitly an Awaitable
if node.returns and "Awaitable" in node.returns.as_string():
self.add_message("async-awaitable-return", node=node, args=(node.name,))
def register(linter):
"""Required method to auto register this checker."""
linter.register_checker(AsyncAwaitableChecker(linter))