fix(directives): ignore invalid directive hooks

fix #795
2020-03-03 12:26:32 -06:00 · 2020-03-03 12:26:32 -06:00 · 7971b0468c
commit 7971b0468c
parent 27afbaf02d
1 changed files with 3 additions and 2 deletions
--- a/packages/runtime-core/src/directives.ts
+++ b/packages/runtime-core/src/directives.ts
@ -126,8 +126,9 @@ export function withDirectives<T extends VNode>(
    }
    // inject onVnodeXXX hooks
    for (const key in dir) {
-      if (!injected[key]) {
-        const { 0: hookName, 1: hook } = directiveToVnodeHooksMap[key]
+      const mapped = directiveToVnodeHooksMap[key]
+      if (mapped && !injected[key]) {
+        const { 0: hookName, 1: hook } = mapped
        const existing = props[hookName]
        props[hookName] = existing ? [].concat(existing, hook as any) : hook
        injected[key] = true