U do*@s,ddlmZddZd ddZd ddZdS) )corec Cs~|}t|\}}t|}|D] }t||ks$td|dq$t}|jD]"}|jD]} | |kr\| | q\qR||fS)z Returns a set of blobs a given net depends on and a set of output blobs that are written by the net Inputs: net - net to return input/output blobs for; lexical_scope - all external blob names visible to the net z Input blob z is undefined) ProtorZget_ssaZget_undefined_blobsstrAssertionErrorsetopoutputadd) net lexical_scopeZ net_protoZnet_ssa_Z input_namesZ input_nameZ output_namesrrr B/tmp/pip-unpacked-wheel-ua33x9lu/caffe2/python/control_ops_util.pyget_external_blob_names s     rNcs,t||\}}t}t}|r,t||\}}||B} ||B} |g} | dd| D7} dd| D} td} dd|D}dd|D}dd||Dt||B}fdd|D}||d }||||| || || j||| ||d | j |i}| |d <d }|rtd }dd|D}dd|D}dd||Dt||B}fdd|D}||d}||||| || ||j||| ||d |j || |d<| g|g|r| g|g|j | | f||j | d S)a A helper function to add an If op to the net. Automatically determines whether blobs in the then/else subnets are external (from the outer workspace) or local (visible only inside subnet's workspace) based on lexical scope - set of all outer blob names visible to the 'If' operator. All the blobs in then/else subnets with names matching a name in lexical scope and all the blobs that are first used as the operators' inputs are considered outer blobs - these blobs must exist in the outer workspace, then/else subnets can read their values and new values written into these blobs will be visible outside of the 'If' operator. All other blobs are local - exist only within inner workspaces for then/else. Inputs: if_net - net to add an If op to; cond_blob - scalar bool blob reference, used as If condition; lexical_scope - a set of outer blob names visible to then/else branches; then_net/else_net - nets (core.Net) for then/else branches cSsg|]}tj|ddqSN)namer rZ BlobReference.0br r r Cszadd_if_op..cSsg|]}tj|ddqSrrrr r rrDs do_then_netcSsg|]}tj|ddqSrrrr r rrIscSsg|]}tj|ddqSrrrr r rrKscSsg|] }t|qSr rrr r rrLscsg|]}|qSr indexr)then_input_output_names_orderedr rrPsz/workspace_if_thenr inner_blobsouter_blobs_idxthen_netN do_else_netcSsg|]}tj|ddqSrrrr r rrkscSsg|]}tj|ddqSrrrr r rrmscSsg|] }t|qSr rrr r rrnscsg|]}|qSr rr)else_input_output_names_orderedr rrrsz/workspace_if_elseelse_net) rrrNetlistNextScopedBlobNameappendDorAddExternalOutput CreateScopeZIf)Zif_net cond_blobr rr"Zthen_input_blob_namesZthen_output_blob_namesZelse_input_blob_namesZelse_output_blob_namesinput_blob_namesoutput_blob_namesZ if_inputsZ if_outputsrZthen_input_blobsZthen_output_blobsZthen_outer_blob_namesZthen_outer_blob_names_idxZdo_then_workspace_blobZif_argsZdo_else_workspace_blobr Zelse_input_blobsZelse_output_blobsZelse_outer_blob_namesZelse_outer_blob_names_idxr )r!rr add_if_op$s                      r.cst||\OddD}ddD}|g|}g|}td} dd||DtB} fdd| D} ||d} || || || || | j|||| | dd | j |i} | | d <d }|rnt||\}}d }|j D] }t ||j krd}q4q|sBt d t ||kr^|t |dd|D}t ||kst ddd|D}td}dd||Dt||B}fdd|D}||d}|||||j|||||d|j ||| d<|fdd|D7}|fdd|D7}t ||krn|jg|tjjd d|g| g|r|g|g|j||f| |j |d S)a A helper function to add a While op to the net. Same rules for determining outer and inner blobs as for the 'If' operator apply for the 'While' operator loop and condition subnets. If specified, condition net is executed in a separate workspace before the first and after each iteration, the last operator must have a single scalar boolean output that is written into the condition blob. Inputs: while_net - net to add a While op to; cond_blob - scalar bool blob reference, used as a stop condition; lexical_scope - a set of outer blob names visible to the loop's body; loop_body_net - net to execute on each iteration; condition_body_net - net to compute condition value cSsg|]}tj|ddqSrrrr r rrsz add_while_op..cSsg|]}tj|ddqSrrrr r rrsdo_loop_body_netcSsg|] }t|qSr rrr r rrscsg|]}|qSr rr)loop_input_output_names_orderedr rrsz/workspace_loop_bodyT)r rrZcopy_external_blobsZloop_netNFz0Condition net does not write into condition blobcSsg|]}tj|ddqSrrrr r rrsz/Condition blob expected in condition net outputcSsg|]}tj|ddqSrrrr r rrsZdo_loop_condition_netcSsg|] }t|qSr rrr r rrscsg|]}|qSr rr)cond_input_output_names_orderedr rrsz/workspace_loop_condrZcond_netcsg|]}t|kr|qSr rr)r,r rrs csg|]}t|kr|qSr rr)r-r rrs )Zdtypevalue)rrr#r$r%r&r'r(rr)rrrrr Z ConstantFillZDataTypeZBOOLr*ZWhile)Z while_netr+r Z loop_body_netZcondition_body_netZ loop_inputsZ loop_outputsZ while_inputsZ while_outputsr/Zloop_body_outer_blob_namesZloop_body_outer_blob_names_idxZdo_loop_body_workspace_blobZ while_argsZcond_workspace_blobZcond_input_blob_namesZcond_output_blob_namesZfound_condition_outputrZ cond_inputsZ cond_outputsZ condition_netZcond_body_outer_blob_namesZcond_body_outer_blob_names_idxr )r1r,r0r-r add_while_ops                  r3)N)N)Z caffe2.pythonrrr.r3r r r rs  j