End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

TracePoint#lineno

lineno

# File tmp/rubies/ruby-3.1.3/trace_point.rb, line 267
def lineno
  Primitive.tracepoint_attr_lineno
end

Line number of the event

See also #instruction_sequence #method_id #inspect #parameters also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0