fix rn invalid var & little fix perf

Author: hiyuki

packages/core/src/core/perf.js

@@ -37,9 +37,10 @@ export function wrapAppLifecycleHooks (options) {
   if (!__mpx_perf_framework__) return
   Object.keys(appLifecycleMeasureNames).forEach((hookName) => {
     const hook = options[hookName]
-    if (typeof hook !== 'function') return
+    if (typeof hook !== 'function' && hookName !== 'onLaunch') return
     options[hookName] = function (...args) {
       if (hookName === 'onLaunch') perf.mark('app:onLaunch:start')
+      if (typeof hook !== 'function') return
       const id = perf.scopeStart(appLifecycleMeasureNames[hookName])
       const result = hook.apply(this, args)
       perf.scopeEnd(id)

packages/webpack-plugin/lib/runtime/components/react/utils.tsx

@@ -1359,6 +1359,11 @@ export function useTransformStyle (styleObj: Record<string, any> = {}, { enableV
       resolvedVarContext = varContextRef.current
     }
     if (varKeyPaths.length) transformVar(normalStyle, varKeyPaths, resolvedVarContext, visitOther)
+  } else if (varKeyPaths.length) {
+    // 首次渲染未启用 varContext 时，后续新增的 var() 无法正确解析，直接移除避免非法样式透传到 RN 组件。
+    varKeyPaths.forEach((varKeyPath) => {
+      setStyle(normalStyle, varKeyPath, ({ target, key }) => delete target[key])
+    })
   }
 
   // apply unocss var