Closed
Description
Checklist
- I have tried restarting my IDE and the issue persists.
- I have read the FAQ and my problem is not listed.
Tell us about your environment
- ESLint version: eslint@8.54.0
- eslint-plugin-vue version: eslint-plugin-vue@9.19.1
- Node version: v20.8.0
- Operating System: macOS 14.1.1 (23B81)
Please show your full configuration:
/* eslint-env node */
require('@rushstack/eslint-patch/modern-module-resolution')
module.exports = {
root: true,
'extends': [
'plugin:vue/vue3-essential',
'eslint:recommended',
'@vue/eslint-config-typescript',
'@vue/eslint-config-prettier/skip-formatting'
],
parserOptions: {
ecmaVersion: 'latest'
},
rules: {
'vue/define-emits-declaration': ['error', 'type-literal'],
}
}What did you do?
<script setup lang="ts">
defineProps<{
msg: string
}>()
// Rule is reporting bad emit 👍
// defineEmits<{
// (e: 'change', id: number): void
// (e: 'update', value: string): void
// }>()
// Rule is reporting bad emit 👍
// defineEmits<{
// (e: 'update:modelValue', value: number): void
// }>()
// Rule is causing a crash 💥
// This format is preferred regarding this rule: https://typescript-eslint.io/rules/prefer-function-type/ (not installed in this project)
defineEmits<(e: 'update:modelValue', value: number) => void>()
</script>What did you expect to happen?
The format without declaring an object should work as expected with the 'vue/define-emits-declaration': ['error', 'type-literal'] rule declared
What actually happened?
Running the linter actually crashes it, with the following output:
> vue-eslint-emits-issue@0.0.0 lint
> eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --fix --ignore-path .gitignore
Oops! Something went wrong! :(
ESLint: 8.54.0
TypeError: param.members is not iterable
Occurred while linting /Users/ericlemaitre/anav/vue-eslint-emits-issue/src/components/HelloWorld.vue:20
Rule: "vue/define-emits-declaration"
at Object.onDefineEmitsEnter (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint-plugin-vue/lib/rules/define-emits-declaration.js:67:44)
at callVisitor (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint-plugin-vue/lib/utils/index.js:1342:21)
at scriptSetupVisitor.CallExpression (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint-plugin-vue/lib/utils/index.js:1443:13)
at ruleErrorHandler (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint/lib/linter/linter.js:1091:28)
at /Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint/lib/linter/safe-emitter.js:45:58
at Array.forEach (<anonymous>)
at Object.emit (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint/lib/linter/safe-emitter.js:45:38)
at NodeEventGenerator.applySelector (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint/lib/linter/node-event-generator.js:297:26)
at NodeEventGenerator.applySelectors (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint/lib/linter/node-event-generator.js:326:22)
at NodeEventGenerator.enterNode (/Users/ericlemaitre/anav/vue-eslint-emits-issue/node_modules/eslint/lib/linter/node-event-generator.js:340:14)
Repository to reproduce this issue
The repository is here: https://github.com/Ericlm/eslint-vue-emits-issue/tree/main
You just need to clone it, install deps, and then go to src/components/HelloWorld.vue. The script of this file contains three different emits, that should all be reported by the linter. The first two work fine, but the last one is causing the issue.
Thank you! :)