鏂囩珷棣栧彂浜庝釜浜哄崥瀹㈠皬鐏扮伆鐨勭┖闂撮€夐」鍚堝苟绛栫暐鍒嗘瀽灏唒ropsinject鎸囦护鐨勪笁涓€夐」杞崲鎴愮粺涓€鏍煎紡鍚庯紝寮€濮嬭繘琛岄€夐」鍚堝苟锛岀湅涓€涓嬪悎骞堕€夐」鐨勪唬鐮?/core/instance/init.js//寮€濮嬪悎骞堕€夐」constoptions={}letkeyfor(keyinparent){//棣栧厛灏嗙埗瀹炰緥涓殑閫夐」鍚堝苟鍒扮洰鏍囧璞′腑mergeField(key)}for(keyinchild){//閬嶅巻child锛屽鏋渃hild涓殑灞炴€у湪parent鏈韩涓嶅瓨鍦紝鍒欏皢灞炴€у悎骞跺埌parent涓璱f(!hasOwn(parent,key)){//mergeField(key)}}functionmergeField(key){//鍚勭閫夐」鐨勭粍鍚堢瓥鐣ュ畾涔夊湪starts瀵硅薄涓奵onststrat=strats[key]||defaultStratoptions[key]=strat(parent[key],child[key],vm,key)}鍚堝苟閫夐」锛屼紭鍏堜娇鐢ㄨ嚜瀹氫箟鍚堝苟绛栫暐锛屽鏋滆嚜瀹氫箟閫夐」绛栫暐涓嶅瓨鍦紝鍒欎娇鐢ㄩ粯璁ゅ悎骞剁瓥鐣ャ€俿tarts瀵硅薄涓殑姣忎釜閿搴斾竴涓€夐」鍚堝苟绛栫暐銆傞粯璁ゅ悎骞剁瓥鐣ユ槸榛樿閫夐」鍚堝苟绛栫暐銆傚鏋滃瓨鍦ㄥ瓙绫婚€夐」锛屽垯浣跨敤瀛愮被閫夐」瑕嗙洊鐖剁被閫夐」銆俢onstdefaultStrat=function(parentVal:any,childVal:any):any{returnchildVal===undefined锛焢arentVal:childVal}el閫夐」鍚堝苟绛栫暐el閫夐」鎻愪緵浜嗕竴涓凡缁忓瓨鍦ㄤ簬椤甸潰涓婄殑DOM鍏冪礌浣滀负Vue瀹炰緥鐨勬寕杞界洰鏍囥€俢hange閫夐」鍙瓨鍦ㄤ簬Vue瀹炰緥涓婏紝鍏朵粬瀛愮被鏋勯€犲嚱鏁颁笂涓嶅厑璁镐娇鐢╡l閫夐」vm,key){//鍙湁Vue瀹炰緥鏈塭l閫夐」锛屽叾浠栧瓙绫绘瀯閫犲嚱鏁颁笉鍏佽鏈塭l閫夐」if(!vm){warn(`option"${key}"canonlybeusedduringinstance`+'浣跨敤`new`鍏抽敭瀛楀垱寤恒€?)}returndefaultStrat(parent,child)}}dataoptionmergestrategystrats.data=function(parentVal:any,childVal:any,vm?:Component):?Function{if(!vm){if(childVal&&typeofchildVal!=='function'){//纭繚瀛愮被鐨勬暟鎹被鍨嬪繀椤绘槸鍑芥暟鑰屼笉鏄璞°€備娇鐢ㄥ璞¤繑鍥炴暟鎹被鍨嬪彲浠ュ疄鐜版湇鍔￠噸鐢ㄣ€俻rocess.env.NODE_ENV!=='production'&&warn('鈥滄暟鎹€濋€夐」搴旇鏄竴涓嚱鏁?+'杩斿洖缁勪欢涓殑姣忎釜瀹炰緥鍊?+'瀹氫箟銆?,vm)returnparentVal}//璋冪敤cmergeDataOrFn鍚堝苟閫夐」returncmergeDataOrFn(parentVal,childVal)}returnnmergeDataOrFn(parentVal,childVal,vm)}exportfunctionmergeDataOrFn(parentVal:any,childVal:any,vm?:Component):?Function{if(!vm){//鍦╒ue.extend鍚堝苟涓紝涓よ€呴兘搴旇鏄嚱鏁?/浼犲叆鐨勯€夐」鏄粍浠朵腑鐨勯€夐」锛屾墍浠ユ病鏈塿m瀹炰緥銆俰f(!childVal){returnparentVal}if(!parentVal){returnchildVal}returnfunctionmergedDataFn(){//鏁版嵁閫夐」鍦ㄧ埗绫诲拰瀛愮被鍚屾椂瀛樺湪鏃惰繑鍥炰竴涓嚱鏁帮紝骞惰皟鐢ㄧ◢鍚庡垵濮嬪寲鍝嶅簲绯荤粺鏃剁殑鏂规硶銆傜湡姝ｇ殑鍚堝苟閫夐」returnmergeData(//灏嗗瓙绫诲疄渚嬪拰鐖剁被瀹炰緥鐨勬暟鎹嚱鏁扮殑杩斿洖缁撴灉浼犻€掔粰mergeData杩涜鍚堝苟typeofchildVal==='function'?childVal.call(this,this):childVal,typeofparentVal==='function'?parentVal.call(this,this):parentVal)}}else{//鎸傚湪Vue瀹炰緥鐨刣ata灞炴€т腑锛岃繖閲屽彲浠ユ槸涓€涓璞eturnfunctionmergedInstanceDataFn(){//瀹炰緥mergeconstinstanceData=typeofchildVal==='鍑芥暟'?childVal.call(vm,vm):childValconstdefaultData=typeofparentVal==='function'锛焢arentVal.call(vm,vm):parentValif(instanceData){//灏嗗疄渚嬬殑閫夐」涓嶸ue鏋勯€犲嚱鏁颁腑鐨勯€夐」鍚堝苟returnmergeData(instanceData,defaultData)}else{returndefaultData}}}}涓婇潰鍒嗘瀽鏉ヨ嚜浠ｇ爜锛屽彲浠ュ彂鐜板湪vue瀹炰緥鐨勫垵濮嬪寲杩囩▼涓紝data閫夐」骞舵病鏈夌湡姝ｅ悎骞讹紝鑰屾槸杩斿洖浜嗕竴涓嚱鏁帮紝杩斿洖鐨勫嚱鏁拌繑鍥炰簡mergeData鐨勬墽琛岀粨鏋滐紝涔熷氨鏄寮忕殑mergedata閫夐」鐨勫湪mergeData鍑芥暟涓棿鎴戜滑鏉ョ湅鐪媘ergeData鍑芥暟鐨勫疄鐜癴unctionmergeData(to:Object,from:?Object):Object{if(!from)returntoletkey,toVal,fromVal//Symbol灞炴€у彲浠ラ€氳繃Reflect鑾峰彇銆俹wnKeysconstkeys=hasSymbol锛烺eflect.ownKeys(from):Object.keys(from)for(leti=0;i
