o `۷i@shdZddlmZmZmZmZmZerddlmZdeddeegdffdd Z d edefd d Z dS) z2Utility functions for expression-based operations.) TYPE_CHECKINGAnyCallableListOptional)ExprexprsrreturnNcsddlm}g}|D]}|}||||q |s dSi|D]}|j}|vr3g|<||q$fdd}|S)aCreate an init_fn to initialize all callable class UDFs in expressions. This function collects all _CallableClassUDF instances from the given expressions, groups them by their callable_class_spec key, and returns an init_fn that initializes each group at actor startup. UDFs with the same key (same class and constructor args) share a single instance to ensure all are properly initialized. Args: exprs: List of expressions to collect callable class UDFs from. Returns: An init_fn that initializes all callable class UDFs, or None if there are no callable class UDFs in the expressions. r)_CallableClassUDFCollectorNcs<D]}|d}||ddD]}|j|_qqdS)Nr)valuesinit _instance)udfs_with_same_key first_udf other_udf udfs_by_keyT/home/ubuntu/vllm_env/lib/python3.10/site-packages/ray/data/util/expression_utils.pyinit_fn1s  z2create_callable_class_udf_init_fn..init_fn)>ray.data._internal.planner.plan_expression.expression_visitorsr visitextendget_callable_class_udfscallable_class_specmake_keyappend)rr callable_class_udfsexpr collectorudfkeyrrrr!create_callable_class_udf_init_fn s     r#instancecsfddl}ddl}|jr|iS|jr,fdd}||SiS)aCall a UDF instance, bridging from sync context to async if needed. This handles the complexity of calling callable class UDF instances that may be sync, async coroutine, or async generator functions. Args: instance: The callable instance to call *args: Positional arguments **kwargs: Keyword arguments Returns: The result of calling the instance rNcspg}i2z 3dHW}||q 6|sdSt|dkr%|dSddl}|dt|d|dS)Nr rzAsync generator yielded zp values in expression context; only the last (most recent) is returned. Use map_batches for multi-yield support.)rlenloggingwarning)resultsitemr'argsr$kwargsrr_collectXs  z6_call_udf_instance_with_async_bridge.._collect)asyncioinspectiscoroutinefunction__call__runisasyncgenfunction)r$r,r-r/r0r.rr+r$_call_udf_instance_with_async_bridge=s   r5) __doc__typingrrrrrray.data.expressionsrr#r5rrrrs  4