Use an abstract superclass for Constraint rather than protocol
Use an abstract superclass for Constraint rather than protocol

zhaoguohui/SnapKit,ArthurKK/SnapKit,msdgwzhy6/SnapKit,sandyway/SnapKit,chengkaizone/SnapKit,CoderJFCK/SnapKit,CoderJFCK/SnapKit,sai43/SnapKit,jiwonsis/SnapKit,1yvT0s/SnapKit,leasual/SnapKit,jiwonsis/SnapKit,imjerrybao/SnapKit,loupman/SnapKit,Rdxer/SnapKit,SnapKit/SnapKit,hanangellove/SnapKit,brittonmobile/SnapKit,dawangjiaowolaixunshan/SnapKit,cnbin/SnapKit,yujiaao/SnapKit,BlessNeo/SnapKit,zht415/SnapKit,duanhjlt/SnapKit,cnbin/SnapKit,Ju2ender/SnapKit,HackRoy/SnapKit,fhchina/SnapKit,dawangjiaowolaixunshan/SnapKit,Rdxer/SnapKit,ramoslin02/SnapKit,HackRoy/SnapKit,CoderJackyHuang/SnapKit,398539445/SnapKit,imjerrybao/SnapKit,fhchina/SnapKit,smalldu/SnapKit,398539445/SnapKit,MaWenxing/SnapKit,ernestopino/SnapKit,CoderJWYang/SnapKit,bestwpw/SnapKit,sunzeboy/SnapKit,SnapKit/SnapKit,lioonline/SnapKit,zilaiyedaren/SnapKit,aleffert/SnapKit,pengleelove/SnapKit,yujiaao/SnapKit,JummyHuang/SnapKit,zilaiyedaren/SnapKit,JummyHuang/SnapKit,hanangellove/SnapKit,QuanGe/SnapKit,duanhjlt/SnapKit,CoderJackyHuang/SnapKit,lioonline/SnapKit,zhaoguohui/SnapKit,leasual/SnapKit,loupman/SnapKit,smalldu/SnapKit,sandyway/SnapKit,ArthurKK/SnapKit,Ju2ender/SnapKit,wmfgithub/SnapKit,BlessNeo/SnapKit,ernestopino/SnapKit,sai43/SnapKit,zht415/SnapKit,CoderJWYang/SnapKit,pengleelove/SnapKit,sunzeboy/SnapKit,msdgwzhy6/SnapKit,1yvT0s/SnapKit,MaWenxing/SnapKit,aleffert/SnapKit,ramoslin02/SnapKit,QuanGe/SnapKit,chengkaizone/SnapKit,wmfgithub/SnapKit,brittonmobile/SnapKit,bestwpw/SnapKit