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use overload; print overload::StrVal(qr/asdf/); # Regexp=SCALAR(...)
use Devel::Peek; Dump(qr/asdf/);
SV = RV(0x1af1fd8) at 0x1b0f118 REFCNT = 1 FLAGS = (PADBUSY,PADMY,ROK) ... MG_TYPE = 'r' MG_OBJ = 0x1b0b51c STASH = 0x1de7570 "Regexp"