feature: @putout/plugin-typescript: apply-utility-types: Optional: add

Author: coderaiser

packages/plugin-typescript/lib/apply-utility-types/fixture/optional-fix.ts

@@ -0,0 +1 @@
+type More = Omit<Hello, World>;

packages/plugin-typescript/lib/apply-utility-types/fixture/optional.ts

@@ -0,0 +1 @@
+type More = Pick<Hello, Exclude<keyof Hello, World>>;

packages/plugin-typescript/lib/apply-utility-types/index.js

@@ -6,4 +6,5 @@ module.exports.replace = () => ({
     'type __a = {readonly [__b in keyof __c]: __c[__b];}': 'type __a = Readonly<__c>',
     'type __a = {[__b in keyof __c]?: __c[__b];}': 'type __a = Partial<__c>',
     'type __a = {[__b in keyof __c]-?: __c[__b];}': 'type __a = Required<__c>',
+    'type __a = Pick<__b, Exclude<keyof __b, __c>>': 'type __a = Omit<__b, __c>',
 });

packages/plugin-typescript/lib/apply-utility-types/index.spec.js

@@ -18,3 +18,8 @@ test('plugin-apply-typescript: apply-utility-types: transform: mapped-types', (t
     t.transform('mapped-types');
     t.end();
 });
+
+test('plugin-apply-typescript: apply-utility-types: transform: optional', (t) => {
+    t.transform('optional');
+    t.end();
+});