System.run_observed: def of bendvy-ecs-core@0.1.0.4
Import: import bendvy-ecs-core@0.1.0.4/system.bend as System
Lines 164-168 of bendvy-ecs-core@0.1.0.4/system.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&start_line=164&end_line=168

import Base
import bendvy-ecs-core@0.1.0.4/trace_facts.bend as TraceFacts
import bendvy-ecs-core@0.1.0.4/world.bend as W

# Observed execution captures and records this_run on success or failure.
# Refusal preserves Args, time, cursor and trace.
# Returned facts describe execution, not additional ECS work to apply.
def run_observed(~S:Data,~C:Type,~R:Type,~E:Data,~Args:Type,~Error:Data,~Output:Type,~runner:W.World<S,C,R,E> -> Args -> Outcome<W.World<S,C,R,E>,Error,Output>,~observed:TraceFacts.State -> W.World<S,C,R,E> -> Args -> Outcome<W.World<S,C,R,E>,Error,Output> & TraceFacts.State,registry:Registry<S,C,R,E,Args,Error,Output,runner>,trace:TraceFacts.State,world:W.World<S,C,R,E>,args:Args) -> RunResult<S,C,R,E,Args,Error,Output,runner> & TraceFacts.State:
  run_observed_with(~S,~C,~R,~E,~Args,~Error,~Output,~runner,~observed,~complete(~S,~C,~R,~E,~Args,~Error,~Output,~runner),registry,trace,world,args)

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=Outcome
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=Registry
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=RunResult
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=complete
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=run_observed_with
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/trace_facts.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=World