feat: upgrade eslint-plugin-flowtype to 3.0.0

BREAKING CHANGE:

Author: robertrossmann

coding-styles/flow.js

@@ -14,6 +14,12 @@ module.exports = {
   ],
 
   rules: {
+    // Enforces a particular annotation style of complex types
+    'flowtype/array-style-complex-type': ['warn', 'shorthand'],
+
+    // Enforces a particular annotation style of simple types
+    'flowtype/array-style-simple-type': ['warn', 'shorthand'],
+
     // Enforces a particular style for boolean type annotations.
     'flowtype/boolean-style': ['warn', 'boolean'],
 
@@ -27,6 +33,15 @@ module.exports = {
     // This rule takes one argument which mirrors ESLint's default comma-dangle rule.
     'flowtype/delimiter-dangle': ['warn', 'always-multiline'],
 
+    // Enforces a particular style for type imports
+    'flowtype/type-import-style': ['warn', 'identifier'],
+
+    // This rule requires an empty line after the Flow annotation
+    'flowtype/newline-after-flow-annotation': 'warn',
+
+    // Require all type declarations to be at the top of the file, after any import declarations
+    'flowtype/require-types-at-top': 'warn',
+
     // Enforces consistent use of semicolons after type aliases.
     'flowtype/semi': ['warn', 'never'],
 

environments/flow/recommended.js

@@ -21,6 +21,15 @@ module.exports = {
     // Checks for duplicate properties in Object annotations.
     'flowtype/no-dupe-keys': 'error',
 
+    // Disallows use of the existential type (*)
+    // https://flow.org/en/docs/types/utilities/#toc-existential-type
+    'flowtype/no-existential-type': 'warn',
+
+    // Disallows $FlowFixMe comment suppressions
+    // This is especially useful as a warning to ensure instances of $FlowFixMe in your codebase get
+    // fixed over time.
+    'flowtype/no-flow-fix-me-comments': 'warn',
+
     // Disallows use of primitive constructors as types, such as Boolean, Number and String.
     'flowtype/no-primitive-constructor-types': 'error',
 
@@ -37,7 +46,13 @@ module.exports = {
 
     // Warns against weak type annotations any, Object and Function. These types can cause flow
     // to silently skip over portions of your code, which would have otherwise caused type errors.
-    'flowtype/no-weak-types': ['warn', { any: true }],
+    'flowtype/no-weak-types': ['warn', {
+      any: true,
+    }],
+
+    // This rule enforces exact object types
+    // https://flow.org/en/docs/types/objects/#toc-exact-object-types
+    'flowtype/require-exact-type': 'warn',
 
     // Requires that all function parameters have type annotations.
     'flowtype/require-parameter-type': 'error',

package-lock.json

@@ -15,7 +15,7 @@
     "Vladimir Vanek <[email protected]>"
   ],
   "dependencies": {
-    "eslint-plugin-flowtype": "^2.39.1",
+    "eslint-plugin-flowtype": "^3.0.0",
     "eslint-plugin-import": "^2.14.0",
     "eslint-plugin-jsx-a11y": "^6.1.2",
     "eslint-plugin-mocha": "^5.2.0",