U d @srddlZddlZddlZGdddeZGdddeZeaddZdd ZGd d d eZ Gd d d e Z dS)Nc@s:eZdZddZeddZddZddZd d d Zd S) _ContextInfocCs||_||_t|_dSN)cls allow_default threadinglocal _local_stack)selfrrr 9/tmp/pip-unpacked-wheel-ua33x9lu/caffe2/python/context.py__init__ sz_ContextInfo.__init__cCst|jdsg|j_|jjS)Nobj)hasattrrr r r r r _stacks z_ContextInfo._stackcCs|j|dSr)rappendr valuer r r entersz_ContextInfo.entercCs2t|jdkstd|j|j|ks.tdS)NrzContext %s is empty.)lenrAssertionErrorrpoprr r r exitsz_ContextInfo.exitTcCsBt|jdkr8|sdS|js*td|j|||jdS)Nrz*Context %s is required but none is active.)rrrrrr)r requiredr r r get_activesz_ContextInfo.get_activeN)T) __name__ __module__ __qualname__r propertyrrrrr r r r r s  rc@seZdZddZddZdS)_ContextRegistrycCs i|_dSr)_ctxsrr r r r 'sz_ContextRegistry.__init__cCsD||jkr:t|ts"td|t|t|td|j|<|j|S)Nz'must be a context managed class, got {})r)r! issubclassManagedrformatrDefaultManagedr rr r r get*s z_ContextRegistry.getN)rrrr r'r r r r r &sr cCstSr)_CONTEXT_REGISTRYr r r r _context_registry4sr)cCsddt|jDS)NcSs*g|]"}t|tr|tkr|tkr|qSr )r"r#r%).0rr r r :s  z(_get_managed_classes..)inspectgetmro __class__)r r r r _get_managed_classes9s r/c@s6eZdZdZed ddZddZdd Zd d ZdS) r#z Managed makes the inheritted class a context managed class. class Foo(Managed): ... with Foo() as f: assert f == Foo.current() NTcCsBt|}|dk r6t||s2td|t|f|S|j|dS)Nz)Wrong context type. Expected: %s, got %s.)r)r)r' isinstancertyper)rrrZctx_infor r r currentKs  zManaged.currentcCs$t|D]}t||q|Sr)r/r)r'rr&r r r __enter__Ts zManaged.__enter__cGs$t|D]}t||qdSr)r/r)r'r)r argsrr r r __exit__Ys zManaged.__exit__cstfdd}|S)Nc s&||W5QRSQRXdSrr )r4kwargsfuncr r r wrapper^sz!Managed.__call__..wrapper) functoolswraps)r r8r9r r7r __call__]szManaged.__call__)NT) rrr__doc__ classmethodr2r3r5r<r r r r r#As   r#c@seZdZdZdS)r%zy DefaultManaged is similar to Managed but if there is no parent when current() is called it makes a new one. N)rrrr=r r r r r%esr%) r,rr:objectrr r(r)r/r#r%r r r r s $