I'm not sure what you mean by this;As part of CL, CLOS always had compiler (and run time compiler) support.
Many early OO systems were implemented in lisps, partially because they are flexible enough to add language features reasonably well, by default.
See, e.g. Flavors, Loops. These predate CL and influenced the design of CLOS.
I'm not sure what you mean by this;As part of CL, CLOS always had compiler (and run time compiler) support.
Many early OO systems were implemented in lisps, partially because they are flexible enough to add language features reasonably well, by default. See, e.g. Flavors, Loops. These predate CL and influenced the design of CLOS.