TraceContext.TraceDraw.check: def of bend-trace-context@0.2.0.0
Import: import bend-trace-context@0.2.0.0/trace_context.bend as TraceContext
Lines 1044-1055 of bend-trace-context@0.2.0.0/trace_context.bend: https://jend.leeeet.dev/read.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&start_line=1044&end_line=1055

import Base

# Check a complete trace ID candidate: zero and the excluded trace ID are
# retried; anything else is the trace ID drawn.
def TraceDraw.check(candidate: Maybe<&2, TraceId>, excluded: Maybe<&2, TraceId>, remaining: Nat) -> TraceStep:
  match candidate:
    case None{}:
      TraceDraw.retry(remaining, excluded)
    case Some{+id}:
      match excluded:
        case None{}:
          DrawnTraceId{id}
        case Some{+old}:
          TraceDraw.reuse(TraceId.is_eq(id, old), id, old, remaining)

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=TraceDraw.retry
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=TraceDraw.reuse
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=TraceId
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=TraceId.is_eq
  https://jend.leeeet.dev/definition.txt?path=bend-trace-context@0.2.0.0/trace_context.bend&name=TraceStep