instance method IRB::Context#use_tracer

use_tracer -> bool[permalink][rdoc] [added by irb/ext/tracer]
use_tracer? -> bool [added by irb/ext/tracer]

irb への入力を評価する時に tracer が有効かどうかを返します。

[SEE_ALSO] tracer, IRB::Context#use_tracer=