closes #3003

src/utils/get-root-computed-attribute-names.js

@@ -9,7 +9,7 @@ import { memoize } from '@riotjs/util'
  */
 export const getRootComputedAttributeNames = memoize(
  (template) =>
- template?.bindingsData?.[0].expressions?.reduce(
+ template?.bindingsData?.[0]?.expressions?.reduce(
  (acc, { name, type }) =>
  type === expressionTypes.ATTRIBUTE ? [...acc, name] : acc,
  [],

test/components/issue-3003-parent.riot

@@ -0,0 +1,11 @@
+<issue-3003-parent>
+ <static-component></static-component>
+
+ <script>
+ import StaticComponent from './static-component.riot'
+
+ export default {
+ components: { StaticComponent }
+ }
+ </script>
+</issue-3003-parent>

test/components/static-component.riot

@@ -0,0 +1,3 @@
+<static-component>
+ <h1>I am static</h1>
+</static-component>

test/specs/components-rendering.spec.js

@@ -2,6 +2,7 @@ import * as riot from '../../src/riot.js'
 
 import Issue2895Parent from '../components/issue-2895-parent.riot'
 import Issue2994ClassDuplication from '../components/issue-2994-class-duplication.riot'
+import Issue3003Parent from '../components/issue-3003-parent.riot'
 import MergeAttributes from '../components/merge-attributes.riot'
 import VirtualEach from '../components/virtual-each.riot'
 
@@ -66,5 +67,16 @@ describe('components rendering', () => {
  })
 
  expect(element.getAttribute('class').trim()).to.be.equal('btn dropdown')
+
+ component.unmount()
+ })
+
+ it('nested static components can be rendered without errors', () => {
+ const element = document.createElement('issue-3003-parent')
+ const component = riot.component(Issue3003Parent)(element)
+
+ expect(() => component.update()).to.not.throw()
+
+ component.unmount()
  })
 })