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fix(compat): fix v3 compiled fn detection in production

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This commit is contained in:
Evan You 2021-07-16 10:17:38 -04:00
parent 68365b9b2b
commit 8dbad83e7f
1 changed files with 4 additions and 4 deletions
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8
packages/runtime-core/src/compat/renderFn.ts
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@ -39,8 +39,6 @@ import {
} from './compatConfig' } from './compatConfig'
import { compatModelEventPrefix } from './componentVModel' import { compatModelEventPrefix } from './componentVModel'
const v3CompiledRenderFnRE = /^(?:function \w*)?\(_ctx, _cache/
export function convertLegacyRenderFn(instance: ComponentInternalInstance) { export function convertLegacyRenderFn(instance: ComponentInternalInstance) {
const Component = instance.type as ComponentOptions const Component = instance.type as ComponentOptions
const render = Component.render as InternalRenderFunction | undefined const render = Component.render as InternalRenderFunction | undefined
@ -50,8 +48,10 @@ export function convertLegacyRenderFn(instance: ComponentInternalInstance) {
return return
} }
if (v3CompiledRenderFnRE.test(render.toString())) { if (render.length >= 2) {
// v3 pre-compiled function // v3 pre-compiled function, since v2 render functions never need more than
// 2 arguments, and v2 functional render functions would have already been
// normalized into v3 functional components
render._compatChecked = true render._compatChecked = true
return return
} }