def TraceId.parse

bend-trace-context@0.2.0.0 · trace_context.bend:532

import Base
import bend-trace-context@0.2.0.0/src/digits.bend as Digits

532# Parse a supplied trace ID: exactly 32 lowercase hexadecimal digits, not all
533# zero. Error offsets count from the start of the ID. The result makes no
534# randomness assertion (laws trace_id_parse and trace_id_accepts).
535def TraceId.parse(text: String) -> Result<&2, &2, Error, TraceId>:
536  do Result<&2, &2, Error, TraceId>:
537    value : Digits.NonZero<32n> <- Parse.id(32n, text, TraceIdField{})
538    return TraceId{value, False{}}