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artiq/lit-test/test/embedding/error_syscall_arg.py

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# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
# RUN: OutputCheck %s --file-to-check=%t
from artiq.language.core import *
from artiq.language.types import *
# CHECK-L: ${LINE:+2}: error: system call argument 'x' must have a type annotation
@syscall
def foo(x) -> TNone:
pass
@kernel
def entrypoint():
# CHECK-L: ${LINE:+1}: note: in system call here
foo()