Exception thrown by require-default-prop when encountering spread operator

[thedamon]

Tell us about your environment

• ESLint version: 6.8.0
• eslint-plugin-vue version: 6.1.2
• Node version: 10.16.3

Package.json:

{
  "scripts": {
    "lint": "eslint . --ext .js,.vue"
  },
  "dependencies": {
    "babel-eslint": "^10.0.3",
    "eslint": "^6.8.0",
    "eslint-plugin-vue": "^6.1.2",
    "vue-eslint-parser": "^7.0.0"
  }
}

Please show your full configuration:

module.exports = {
  extends: ["plugin:vue/recommended"]
};

What did you do?

<script>
const commonProps = {
  background: String
};

export default {
  name: "test",
  props: {
    background: {
      ...commonProps.background,
      validator: data => {
        return ["bg-2", "bg"].includes(data);
      }
    }
  }
};
</script>

What did you expect to happen?
Tests to run successfully

What actually happened?

require-default-prop encountered an error parsing the file.

$ eslint . --ext .js,.vue
TypeError: Cannot read property 'type' of undefined
Occurred while linting /eslint-test/Test.vue:6
    at value.type.ObjectExpression.value.properties.find.p (eslint-plugin-vue/lib/rules/require-default-prop.js:116:17)
    at Array.find (<anonymous>)
    at isBooleanProp (eslint-plugin-vue/lib/rules/require-default-prop.js:115:26)
    at props.filter.prop (eslint-plugin-vue/lib/rules/require-default-prop.js:129:36)
    at Array.filter (<anonymous>)
    at excludeBooleanProps (eslint-plugin-vue/lib/rules/require-default-prop.js:129:20)
    at utils.executeOnVue (eslint-plugin-vue/lib/rules/require-default-prop.js:141:29)
    at ExportDefaultDeclaration:exit (eslint-plugin-vue/lib/utils/index.js:628:9)
    at listeners.(anonymous function).forEach.listener (eslint/lib/linter/safe-emitter.js:45:58)
    at Array.forEach (<anonymous>)
error Command failed with exit code 2.

[ota-meshi]

Thank you for this issue.

I will check this bug and fix it.