Convert to TypeScript

package.json

@@ -16,6 +16,7 @@
  ],
  "main": "dist/index.cjs.js",
  "module": "dist/index.esm.js",
+ "types": "dist/index.d.ts",
  "files": [
  "dist"
  ],
@@ -36,6 +37,11 @@
  "stream-parser": "^0.3.1"
  },
  "devDependencies": {
- "rollup": "^2.56.0"
+ "@rollup/plugin-typescript": "^8.2.5",
+ "@tsconfig/node12": "^1.0.9",
+ "@types/node": "^16.4.13",
+ "rollup": "^2.56.0",
+ "tslib": "^2.3.0",
+ "typescript": "^4.3.5"
  }
 }

rollup.config.js

@@ -1,10 +1,13 @@
+import {defineConfig} from 'rollup';
+import typescript from '@rollup/plugin-typescript';
 import pkg from './package.json';
 
-export default {
- input: 'src/index.js',
- external: ['stream-parser'],
+export default defineConfig({
+ input: 'src/index.ts',
+ external: ['stream-parser', 'stream'],
+ plugins: [typescript({tsconfig: './tsconfig.json'})],
  output: [
  { file: pkg.main, format: 'cjs' },
  { file: pkg.module, format: 'es' }
  ]
-};
+});

src/index.ts

@@ -0,0 +1,3 @@
+export {AcbStreamDecoder} from './lib/decoder';
+export {encodeAcb} from './lib/encoder';
+export type {ColorSpace, Color, ColorBook} from './lib/types';

src/lib/chunk.ts

@@ -0,0 +1,23 @@
+export function fromAscii(value: string) {
+ return Buffer.from(value, 'ascii');
+}
+
+export function fromUInt16BE(value: number) {
+ const chunk = Buffer.allocUnsafe(2);
+ chunk.writeUInt16BE(value);
+ return chunk;
+}
+
+export function fromUInt32BE(value: number) {
+ const chunk = Buffer.allocUnsafe(4);
+ chunk.writeUInt32BE(value);
+ return chunk;
+}
+
+export function fromString(value: string) {
+ const chunk = Buffer.allocUnsafe(4 + value.length * 2);
+ chunk.write(value, 4, 'utf16le');
+ chunk.swap16();
+ chunk.writeUInt32BE(value.length);
+ return chunk;
+}