refactor: undefined

Author: sxzz

Diff for: packages/compiler-vapor/src/transform.ts

@@ -79,8 +79,8 @@ export class TransformContext<T extends AllNode = AllNode> {
 
   comment: CommentNode[] = []
   component: Set<string> = this.ir.component
-  slots: ComponentSlots | null = null
-  dynamicSlots: ComponentDynamicSlot[] | null = null
+  slots?: ComponentSlots
+  dynamicSlots?: ComponentDynamicSlot[]
 
   private globalId = 0
 
@@ -100,8 +100,8 @@ export class TransformContext<T extends AllNode = AllNode> {
     this.dynamic = ir.dynamic
     this.template = ''
     this.childrenTemplate = []
-    this.slots = null
-    this.dynamicSlots = null
+    this.slots = undefined
+    this.dynamicSlots = undefined
     isVFor && this.inVFor++
     return () => {
       // exit

Diff for: packages/compiler-vapor/src/transforms/transformElement.ts

@@ -104,11 +104,11 @@ function transformComponentElement(
     props: propsResult[0] ? propsResult[1] : [propsResult[1]],
     resolve,
     root,
-    slots: context.slots || undefined,
-    dynamicSlots: context.dynamicSlots || undefined,
+    slots: context.slots,
+    dynamicSlots: context.dynamicSlots,
   })
-  context.slots = null
-  context.dynamicSlots = null
+  context.slots = undefined
+  context.dynamicSlots = undefined
 }
 
 function resolveSetupReference(name: string, context: TransformContext) {