October 2020 (version 1.42.0)

1.42.0 Update

Welcome to the new DeepScan updates!

Please kindly go ahead with the highlights for the latest release.

The following Vue.js rules are introduced:

VUE_MISSING_RETURN_VALUE_IN_VALIDATOR - Do not miss a return value in the validator functions for Vue props and event
VUE_MISUSED_API_AFTER_AWAIT - Do not use the lifecycle hooks and watchers after await in an async function
VUE_SETUP_INVALID_THIS - Do not use this object in the Vue setup function

As for the supporting ESLint plugins, the following has changed:

Add eslint-plugin-simple-import-sort
Add eslint-plugin-vue-a11y
Update eslint-plugin-jest to the latest version 24.1
Update eslint-plugin-vue to the stable version 7.1.0
Add a react dependency for eslint-plugin-react, which fixes an analysis fail in the ESLint 5 version

See here to find out which version of ESLint plugins DeepScan is using.

IntelliJ plugin now supports IntelliJ IDEA 2020 versions
Support async components at VUE_MISMATCHED_TYPE_OF_PROP
Support setup() and Composition API lifecycle hooks at VUE_MISSING_CLEANUP_IN_LIFECYCLE
Support Composition API lifecycle hooks at VUE_BAD_API_RETURN_VALUE
Recognize the return values of defineComponent() and Vue.extend() as Vue components
Recognize template literal without embedded expression as a syntactic constant, which improves overall analysis precision

A false alarm for SYNTAX_ERROR may occur when a binary operator appears after TypeScript as assertion
SYNTAX_ERROR is not reported for incorrectly placed default values at object shorthand property
SYNTAX_ERROR is not reported for TypeScript declare function having function body
Expressions at Vue v-else-if or v-slot directives may reference incorrect variables
getCurrentInstance() is not recognized as a Vue API