o 2ha@szdZddlmZddlmZddlmZddlmZddlm Z ddZ d d Z d d Z d dZ dddZdddZdS)z6Utilities for extracting and writing checkpoint info`.)trackable_object_graph_pb2)resource_variable_ops) variables)trackable_utils)object_identityc Cst|}t}|D]}}dt|vr|}|D]n}t|D]g\}} z|| |} Wn ttfy7d} Ynw| dur=q| | rIt d| |vrUt d| dt j || |||d} | || <t|} | || <|| tjjj||| d} ||g| qqq |S)zGather and name slot variables.get_slot_namesNzCurrently only variables with no dependencies can be saved as slot variables. File a feature request if this limitation bothers you.zCA slot variable was re-used as a dependency of a Trackable object: zW. This is not currently allowed. File a feature request if this limitation bothers you.) variable_pathoptimizer_path slot_name)r original_variable_node_idslot_variable_node_id)listrObjectIdentityDictionarydirr enumerateget_slotAttributeErrorKeyError_maybe_initialize_trackable_trackable_childrenNotImplementedErrorrslot_variable_keylenappendrTrackableObjectGraphTrackableObjectSlotVariableReference setdefault)trackable_objectsnode_ids object_namesnon_slot_objectsslot_variables trackable slot_namesr r original_variable slot_variablecheckpoint_namer slot_variable_protor)\/var/www/html/chatgem/venv/lib/python3.10/site-packages/tensorflow/python/checkpoint/util.pyserialize_slot_variabless^   #r+cCs|dur|S|||S)zFReturns the mapped trackable if possible, otherwise returns trackable.N)get)r# object_mapr)r)r*get_mapped_trackableIs r.cCs8t|tjs t|s dSt|dddur|jjS|jS)zGGets the full name of variable for name-based checkpoint compatibility._save_slice_infoN) isinstancerVariableris_resource_variablegetattrr0 full_name _shared_name)varr)r)r* get_full_nameQs r8c Csi}t}t}t|jD]-\}}|js|js|dr"|||j D]}|j }||vr3t||<|||q%qt}| ||ri| }||vrOqD| |} | | | D] } | |vrf|| q[|sFt|jD] \}}t ||v|j_qndS)zDetermines which objects have checkpoint values and save this to the proto. Args: object_graph_proto: A `TrackableObjectGraph` proto. registered_saverN)rObjectIdentitySetsetrnodes attributesr"HasFieldaddchildrennode_idupdatepopboolhas_checkpoint_valuesvalue) object_graph_protoparentscheckpointed_trackablesrA object_proto child_protochildto_visitr#current_parentsparentr)r)r*add_checkpoint_values_checkas@           rPFc Cs|\}}t}|D] \}}t|||<qt}t|D]\}} ||| <q"|r2t} nt|||d} |||| |fS)a]Traverse the object graph and list all accessible objects. Looks for `Trackable` objects which are dependencies of `root_trackable`. Includes slot variables only if the variable they are slotting for and the optimizer are dependencies of `root_trackable` (i.e. if they would be saved with a checkpoint). Args: graph_view: A GraphView object. skip_slot_variables: If True does not return trackables for slot variable. Default False. Returns: A tuple of (trackable objects, paths from root for each object, object -> node id, slot variables, object_names) )rrr )breadth_first_traversalrritemsrobject_path_to_stringrr+) graph_viewskip_slot_variablesr node_pathsr objpathrrAnoder"r)r)r*(objects_ids_and_slot_variables_and_pathss   rZcCst||d}|S)z:Traverse the object graph and list all accessible objects.r)rZ)rTrUrr)r)r* list_objectss r[N)F)__doc__tensorflow.core.protobufrtensorflow.python.opsrrtensorflow.python.trackablertensorflow.python.utilrr+r.r8rPrZr[r)r)r)r*s     1. $