typescript(option): chore: fixed build process

Signed-off-by: prescientmoon <git@moonythm.dev>

typescript/option/package.json

@@ -3,8 +3,8 @@
     "version": "0.0.0-development",
     "description": "Typescript version of fsharps Option module",
     "main": "dist/bundle.cjs.js",
-    "module": "dist/bundle.esm.js",
-    "typings": "dist/index.d.ts",
+    "module": "dist/index.esm.js",
+    "typings": "dist/index.esm.d.ts",
     "scripts": {
         "prebuild": "rimraf dist",
         "build": "rollup -c rollup.config.ts"
@@ -24,15 +24,15 @@
     ],
     "sideEffects": false,
     "devDependencies": {
+        "@rollup/plugin-commonjs": "^11.0.0",
         "@rollup/plugin-node-resolve": "^6.0.0",
+        "@types/node": "^12.12.21",
+        "@wessberg/rollup-plugin-ts": "^1.1.83",
         "rimraf": "^3.0.0",
         "rollup": "^1.27.13",
-        "rollup-plugin-commonjs": "^10.1.0",
-        "rollup-plugin-dts": "^1.1.13",
         "rollup-plugin-terser": "^5.1.3",
-        "rollup-plugin-typescript2": "^0.25.3",
-        "semantic-release": "^15.13.31",
-        "typescript": "^3.7.3"
+        "semantic-release": "^15.14.0",
+        "typescript": "^3.7.4"
     },
     "author": "Matei Adriel",
     "license": "SEE LICENSE IN LICENSE"

typescript/option/rollup.config.ts

@@ -1,9 +1,6 @@
-import commonjs from 'rollup-plugin-commonjs'
-import nodeResolve from '@rollup/plugin-node-resolve'
-import dts from 'rollup-plugin-dts'
-import typescript from 'rollup-plugin-typescript2'
 import { terser } from 'rollup-plugin-terser'
 import { resolve } from 'path'
+import ts from '@wessberg/rollup-plugin-ts'
 
 const outputDirectory = resolve(__dirname, 'dist')
 const inputFile = resolve(__dirname, 'src/index.ts')
@@ -19,36 +16,36 @@ export default [
         external,
         output: [
             {
-                file: `${outputDirectory}/bundle.cjs.js`,
+                file: `${outputDirectory}/index.cjs.js`,
                 format: 'cjs',
                 sourcemap: true
             },
             {
-                file: `${outputDirectory}/bundle.esm.js`,
-                format: 'esm',
-                sourcemap: true
-            },
-            {
-                file: `${outputDirectory}/bundle.amd.js`,
+                file: `${outputDirectory}/index.amd.js`,
                 sourcemap: true,
                 format: 'amd',
                 name: 'Option'
             }
         ],
-        plugins: [
-            nodeResolve({
-                extensions: ['.ts']
-            }),
-            commonjs(),
-            typescript({
-                tsconfig: resolve(__dirname, 'tsconfig.json')
-            }),
-            !dev && terser()
-        ]
+        plugins: [ts(), !dev && terser()]
     },
     {
         input: inputFile,
-        output: [{ file: `${outputDirectory}/index.d.ts`, format: 'es' }],
-        plugins: [dts()]
+        external,
+        output: [
+            {
+                file: `${outputDirectory}/index.esm.js`,
+                format: 'esm',
+                sourcemap: true
+            }
+        ],
+        plugins: [
+            ts({
+                tsconfig: {
+                    declaration: true
+                }
+            }),
+            !dev && terser()
+        ]
     }
 ]

typescript/option/src/helpers.ts

@@ -10,18 +10,16 @@ import {
 import { identity } from './internalHelperts'
 import { none, some } from './internals'
 
-export const isSome = <T>(option: Option<T>): option is Some<T> =>
-    option.type === some
-export const isNothing = <T>(option: Option<T>): option is None =>
-    option.type === none
+export const isSome = <T>(option: Option<T>) => option._type === some
+export const isNothing = <T>(option: Option<T>) => option._type === none
 
 const match = <T, U>(
     caseSome: Mapper<T, U>,
     _default: U,
     option: Option<T>
 ) => {
-    if (isSome(option)) {
-        return caseSome(option.value as T)
+    if (option._type === some) {
+        return caseSome(option.value)
     }
 
     return _default
@@ -72,7 +70,7 @@ export const forall = <T>(predicate: Predicate<T>, option: Option<T>) => {
 }
 
 export const get = <T>(option: Option<T>): T => {
-    if (isSome(option)) {
+    if (option._type === some) {
         return option.value
     }
 
@@ -80,7 +78,7 @@ export const get = <T>(option: Option<T>): T => {
 }
 
 export const iter = <T>(mapper: Mapper<T, void>, option: Option<T>) => {
-    if (isSome(option)) {
+    if (option._type === some) {
         mapper(option.value)
     }
 }

typescript/option/src/internals.ts

@@ -1,7 +1,7 @@
-export const some = Symbol('some')
-export const none = Symbol('none')
+export const some = 'some'
+export const none = 'none'
 
 export type NominalTyped<T, U> = {
-    type: T
+    _type: T
     value: U
 }

typescript/option/src/types.ts

@@ -1,16 +1,16 @@
 import { NominalTyped, none, some } from './internals'
 
-export type None = NominalTyped<typeof none, null>
-export type Some<T> = NominalTyped<typeof some, T>
+export type None = NominalTyped<'none', null>
+export type Some<T> = NominalTyped<'some', T>
 
 export type Option<T> = Some<T> | None
 
 export const None: Option<any> = {
-    type: none,
+    _type: 'none',
     value: null
 }
 
 export const Some = <T>(value: T): Option<T> => ({
-    type: some,
+    _type: 'some',
     value
 })