require-prop-types raises an error when a validator is present

[danielsamuels]

Tell us about your environment

• ESLint version: 4.19.1
• eslint-plugin-vue version: 4.4.0
• Node version: node v8.9.4, yarn 1.4.1

Please show your full configuration:

{
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module"
  },
  "env": {
    "browser": true,
    "commonjs": true,
    "jquery": true
  },
  "extends": [
    "plugin:vue/recommended",
    "eslint:recommended"
  ]
}

What did you do?

<script>
export default {
    props: {
        deviceId: {
            validator: value => value === null || typeof value === Number,
            required: true,
        }
    },
};
</script>

What did you expect to happen?
According to the documentation it should be possible to define a validator in place of a type and have the rule pass. This is not the case.

What actually happened?

[ESLint: test.vue]

     Error       4,9: Prop "deviceId" should define at least its type. (vue/require-prop-types)

✗ 1 error, 0 warnings

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[Finished in 1.0s]

[danielsamuels]

Strangely enough the project does seem to have a test for this case, which must be passing incorrectly?

[danielsamuels]

Looks like this issue is resolved in later versions as of #476.