feat: update exporting manner

BREAKING CHANGE: specific implementation is now provided in subdir

Author: berlysia

README.md

@@ -84,11 +84,10 @@ Not to use:
 ## Import specific implementation
 
 ```js
-import PriorityQueue, {
-  BinaryHeap,
-  PairingHeap,
-  SkewHeap,
-} from "priorityqueue";
+import PriorityQueue from "priorityqueue";
+import BinaryHeap from "priorityqueue/BinaryHeap";
+import PairingHeap from "priorityqueue/PairingHeap";
+import SkewHeap from "priorityqueue/SkewHeap";
 
 console.log(PriorityQueue === BinaryHeap); // => true
 ```

package.json

@@ -2,9 +2,27 @@
   "name": "priorityqueue",
   "version": "1.0.0",
   "description": "An implementation of Priority Queue",
-  "main": "lib/priorityqueue.js",
-  "module": "lib/priorityqueue.mjs",
+  "main": "lib/index.js",
+  "module": "lib/index.mjs",
   "types": "lib/index.d.ts",
+  "exports": {
+    ".": {
+      "import": "./lib/index.mjs",
+      "require": "./lib/index.js"
+    },
+    "./BinaryHeap": {
+      "import": "./lib/BinaryHeap.mjs",
+      "require": "./lib/BinaryHeap.js"
+    },
+    "./PairingHeap": {
+      "import": "./lib/PairingHeap.mjs",
+      "require": "./lib/PairingHeap.js"
+    },
+    "./SkewHeap": {
+      "import": "./lib/SkewHeap.mjs",
+      "require": "./lib/SkewHeap.js"
+    }
+  },
   "sideEffect": false,
   "scripts": {
     "build:code": "vite build",

src/BinaryHeap.test.ts

@@ -1,5 +1,5 @@
 import sharedTest from "./testing";
-import { BinaryHeap } from "./BinaryHeap";
+import BinaryHeap from "./BinaryHeap";
 
 sharedTest({
   PriorityQueueCtor: BinaryHeap,

src/BinaryHeap.ts

@@ -56,7 +56,7 @@ function heapifyAll<T>(instance: BinaryHeap<T>): void {
 /**
  * An implementation of Binary Heap.
  */
-export class BinaryHeap<T>
+export default class BinaryHeap<T>
   extends BasePriorityQueue
   implements PriorityQueueInstance<T>
 {

src/PairingHeap.test.ts

@@ -1,5 +1,5 @@
 import sharedTest from "./testing";
-import { PairingHeap } from "./PairingHeap";
+import PairingHeap from "./PairingHeap";
 
 sharedTest({
   PriorityQueueCtor: PairingHeap,

src/PairingHeap.ts

@@ -90,7 +90,7 @@ function mergeChildren<T>(
   return cursor;
 }
 
-export class PairingHeap<T>
+export default class PairingHeap<T>
   extends BasePriorityQueue
   implements PriorityQueueInstance<T>
 {

src/SkewHeap.test.ts

@@ -1,5 +1,5 @@
 import sharedTest from "./testing";
-import { SkewHeap } from "./SkewHeap";
+import SkewHeap from "./SkewHeap";
 
 sharedTest({
   PriorityQueueCtor: SkewHeap,

src/SkewHeap.ts

@@ -45,7 +45,7 @@ function merge<T>(
 /**
  * An implementation of Skew Heap.
  */
-export class SkewHeap<T>
+export default class SkewHeap<T>
   extends BasePriorityQueue
   implements PriorityQueueInstance<T>
 {

src/__tests__/pairwise.ts

@@ -1,8 +1,8 @@
 import { describe, it, expect } from "vitest";
 import { numericGreaterFirst, dictOrderGreaterFirst } from "../comparator";
-import { BinaryHeap } from "../BinaryHeap";
-import { PairingHeap } from "../PairingHeap";
-import { SkewHeap } from "../SkewHeap";
+import BinaryHeap from "../BinaryHeap";
+import PairingHeap from "../PairingHeap";
+import SkewHeap from "../SkewHeap";
 
 const Ctors = [BinaryHeap, PairingHeap, SkewHeap];
 

src/index.ts

@@ -1,6 +1,5 @@
-import { BinaryHeap as _BinaryHeap } from "./BinaryHeap";
-
-export { PairingHeap } from "./PairingHeap";
-export { SkewHeap } from "./SkewHeap";
-export const BinaryHeap = _BinaryHeap;
-export default BinaryHeap;
+export { default } from "./BinaryHeap";
+export type {
+  PriorityQueueInstance,
+  PriorityQueueStatic,
+} from "./PriorityQueue";

src/performance/index.ts

@@ -4,7 +4,9 @@ import pkgDir from "pkg-dir";
 import { sync as mkdirpSync } from "mkdirp";
 import builder from "yargs";
 import * as statistics from "simple-statistics";
-import { BinaryHeap, PairingHeap, SkewHeap } from "..";
+import BinaryHeap from "../BinaryHeap";
+import SkewHeap from "../SkewHeap";
+import PairingHeap from "../PairingHeap";
 import operations from "./operations";
 
 const { testCase, algorithm } = builder

vite.config.js

@@ -7,10 +7,12 @@ export default defineConfig({
     outDir: "lib",
     lib: {
       // Could also be a dictionary or array of multiple entry points
-      entry: resolve(__dirname, "src/index.ts"),
-      name: "PriorityQueue",
-      // the proper extensions will be added
-      fileName: "priorityqueue",
+      entry: [
+        "src/index.ts",
+        "src/BinaryHeap.ts",
+        "src/PairingHeap.ts",
+        "src/SkewHeap.ts",
+      ].map((filepath) => resolve(__dirname, filepath)),
       formats: ["es", "cjs"],
     },
     sourcemap: true,