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14 changes: 7 additions & 7 deletions chex/_src/restrict_backends.py
Original file line number Diff line number Diff line change
Expand Up @@ -80,20 +80,20 @@ def is_allowed(backend_platform):
return ((backend_platform in allowed) if allowed is not None else
(backend_platform not in forbidden))

inner_backend_compile = compiler.backend_compile
inner_backend_compile_and_load = compiler.backend_compile_and_load

@functools.wraps(inner_backend_compile)
@functools.wraps(inner_backend_compile_and_load)
def wrapper(backend, *args, **kwargs):
if not is_allowed(backend.platform):
raise RestrictedBackendError(
f'Compiling a JAX program for {backend.platform} is forbidden by '
f'restrict_backends().')
return inner_backend_compile(backend, *args, **kwargs)
return inner_backend_compile_and_load(backend, *args, **kwargs)

try:
compiler.backend_compile = wrapper
compiler.backend_compile_and_load = wrapper
yield
finally:
backend_compile = compiler.backend_compile
assert backend_compile is wrapper, backend_compile
compiler.backend_compile = inner_backend_compile
backend_compile_and_load = compiler.backend_compile_and_load
assert backend_compile_and_load is wrapper, backend_compile_and_load
compiler.backend_compile_and_load = inner_backend_compile_and_load
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