Merge pull request #303 from saneyuki/rule

[typescript-eslint] Enable explicit-module-boundary-types

config/eslintrc_typescript.js

@@ -74,8 +74,13 @@ module.exports = {
             },
         }],
 
-        // TODO: #301
-        '@typescript-eslint/explicit-module-boundary-types': 'off',
+        // Function's in/out are one of the important place to ensure type safety.
+        '@typescript-eslint/explicit-module-boundary-types': ['warn', {
+            'allowTypedFunctionExpressions': true,
+            'allowHigherOrderFunctions': false,
+            'allowDirectConstAssertionInArrowFunctions': false,
+            'allowedNames': [],
+        }],
 
         //  * We accept the style for T , TA , TAbc , TA1Bca , T1 , T2.
         //      * You seem this style is similar to C# or typescript compiler.
@@ -283,11 +288,6 @@ module.exports = {
         // We allow this this kind of redundant code because it sometimes prevents a mistake.
         '@typescript-eslint/no-unnecessary-type-assertion': 'off',
 
-        // I think this rule is useful.
-        // But I'm not sure about that the relation with `noImplicitAny` compiler option.
-        // FIXME(#257)
-        '@typescript-eslint/no-untyped-public-signature': 'off',
-
         // This should be sorted with ESLint builtin rule.
         'no-unused-expressions': 'off',
         '@typescript-eslint/no-unused-expressions': 'error',