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artiq/lit-test/test/inferencer/error_with_arity.py

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# RUN: %python -m artiq.compiler.testbench.inferencer +diag %s >%t
# RUN: OutputCheck %s --file-to-check=%t
class contextmgr:
def __enter__(self, n1):
pass
def __exit__(self, n1, n2):
pass
def foo():
# CHECK-L: ${LINE:+2}: error: function '__enter__(self:<instance contextmgr {}>, n1:'a)->NoneType delay('b)' must accept 1 positional argument and no optional arguments
# CHECK-L: ${LINE:+1}: error: function '__exit__(self:<instance contextmgr>, n1:'c, n2:'d)->NoneType delay('e)' must accept 4 positional arguments and no optional arguments
with contextmgr():
pass