fix: built types were wrong, causing inference issues

package.json

@@ -33,7 +33,7 @@
 		"test": "vitest run",
 		"test:watch": "vitest",
 		"update": "yarn upgrade-interactive",
-		"build": "tsc -p src --noEmit && tsup",
+		"build": "tsc -p src --noEmit && yarn clean && tsup && tsc -p src --emitDeclarationOnly && tsx scripts/post-build.mts",
 		"clean": "node scripts/clean.mjs",
 		"typecheck": "tsc -p src --noEmit",
 		"bump": "cliff-jumper",
@@ -47,6 +47,7 @@
 		"@sapphire/eslint-config": "^5.0.5",
 		"@sapphire/prettier-config": "^2.0.0",
 		"@sapphire/ts-config": "^5.0.1",
+		"@types/node": "^20.14.10",
 		"@typescript-eslint/eslint-plugin": "^7.14.1",
 		"@typescript-eslint/parser": "^7.14.1",
 		"@vitest/coverage-c8": "^0.33.0",
@@ -58,6 +59,7 @@
 		"lint-staged": "^15.2.7",
 		"prettier": "^3.3.2",
 		"tsup": "^8.1.0",
+		"tsx": "^4.16.2",
 		"typedoc": "^0.26.2",
 		"typedoc-plugin-mdn-links": "^3.2.1",
 		"typescript": "^5.5.2",

scripts/post-build.mts

@@ -0,0 +1,15 @@
+import { copyFile, readFile, writeFile } from 'node:fs/promises';
+
+const originalDTS = new URL('../dist/index.d.ts', import.meta.url);
+const originalDTSMap = new URL('../dist/index.d.ts.map', import.meta.url);
+
+const esmDTS = new URL('../dist/index.d.mts', import.meta.url);
+const esmDTSMap = new URL('../dist/index.d.mts.map', import.meta.url);
+
+await copyFile(originalDTS, esmDTS);
+
+const readMap = await readFile(originalDTSMap, 'utf-8');
+const parsedMap = JSON.parse(readMap);
+parsedMap.file = 'index.d.mts';
+
+await writeFile(esmDTSMap, JSON.stringify(parsedMap), 'utf-8');

tests/types.ts

@@ -163,3 +163,27 @@ declare const t2: AsyncEventEmitter<Events>;
 	const l = t2.listeners('baz');
 	//    ^?
 }
+
+enum EventsEnum {
+	Test1 = 'test1',
+}
+
+interface Events2 {
+	[EventsEnum.Test1]: [bar: string];
+}
+
+declare const emitterWithEnum: AsyncEventEmitter<Events2>;
+
+emitterWithEnum.on(EventsEnum.Test1, (bar) => {
+	console.log(bar);
+});
+
+class Extension extends AsyncEventEmitter<Events2> {
+	public emitCustom() {
+		// this.emit();
+
+		// this.on();
+
+		this.emit(EventsEnum.Test1, 123);
+	}
+}

tsup.config.ts

@@ -16,11 +16,11 @@ const sharedConfig: Options = {
 	terserOptions: {
 		mangle: false,
 		keep_classnames: true,
-		keep_fnames: true
+		keep_fnames: true,
 	},
 	splitting: false,
 	keepNames: true,
-	dts: true,
+	dts: false,
 	sourcemap: true,
 	treeshake: false,
 	outDir: 'dist',
@@ -44,23 +44,23 @@ const sharedConfig: Options = {
 
 					await writeFile(resolve(process.cwd(), file.name), newContent, 'utf-8');
 				}
-			}
-		}
-	]
+			},
+		},
+	],
 };
 
 export default [
 	defineConfig({
 		...sharedConfig,
 		format: 'cjs',
-		outExtension: () => ({ js: '.cjs' })
+		outExtension: () => ({ js: '.cjs' }),
 	}),
 	defineConfig({
 		...sharedConfig,
-		format: 'esm'
+		format: 'esm',
 	}),
 	defineConfig({
 		...sharedConfig,
-		format: 'iife'
-	})
+		format: 'iife',
+	}),
 ];

yarn.lock

@@ -1135,6 +1135,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/node@npm:^20.14.10":
+  version: 20.14.10
+  resolution: "@types/node@npm:20.14.10"
+  dependencies:
+    undici-types: "npm:~5.26.4"
+  checksum: 10/672892cf94d0d95cf052f11271990686a0fd204cd1e5fe7a4ef240e5315e06711765dc47b9ec98627d3adac18b8c92bb7e2d8db21d18faa20bc3e3203a143e79
+  languageName: node
+  linkType: hard
+
 "@types/parse-json@npm:^4.0.0":
   version: 4.0.0
   resolution: "@types/parse-json@npm:4.0.0"
@@ -1370,6 +1379,7 @@ __metadata:
     "@sapphire/eslint-config": "npm:^5.0.5"
     "@sapphire/prettier-config": "npm:^2.0.0"
     "@sapphire/ts-config": "npm:^5.0.1"
+    "@types/node": "npm:^20.14.10"
     "@typescript-eslint/eslint-plugin": "npm:^7.14.1"
     "@typescript-eslint/parser": "npm:^7.14.1"
     "@vitest/coverage-c8": "npm:^0.33.0"
@@ -1381,6 +1391,7 @@ __metadata:
     lint-staged: "npm:^15.2.7"
     prettier: "npm:^3.3.2"
     tsup: "npm:^8.1.0"
+    tsx: "npm:^4.16.2"
     typedoc: "npm:^0.26.2"
     typedoc-plugin-mdn-links: "npm:^3.2.1"
     typescript: "npm:^5.5.2"
@@ -2483,7 +2494,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"esbuild@npm:^0.21.3, esbuild@npm:^0.21.4":
+"esbuild@npm:^0.21.3, esbuild@npm:^0.21.4, esbuild@npm:~0.21.5":
   version: 0.21.5
   resolution: "esbuild@npm:0.21.5"
   dependencies:
@@ -3095,6 +3106,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"get-tsconfig@npm:^4.7.5":
+  version: 4.7.5
+  resolution: "get-tsconfig@npm:4.7.5"
+  dependencies:
+    resolve-pkg-maps: "npm:^1.0.0"
+  checksum: 10/de7de5e4978354e8e6d9985baf40ea32f908a13560f793bc989930c229cc8d5c3f7b6b2896d8e43eb1a9b4e9e30018ef4b506752fd2a4b4d0dfee4af6841b119
+  languageName: node
+  linkType: hard
+
 "git-cliff-darwin-arm64@npm:1.4.0":
   version: 1.4.0
   resolution: "git-cliff-darwin-arm64@npm:1.4.0"
@@ -5127,6 +5147,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"resolve-pkg-maps@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "resolve-pkg-maps@npm:1.0.0"
+  checksum: 10/0763150adf303040c304009231314d1e84c6e5ebfa2d82b7d94e96a6e82bacd1dcc0b58ae257315f3c8adb89a91d8d0f12928241cba2df1680fbe6f60bf99b0e
+  languageName: node
+  linkType: hard
+
 "restore-cursor@npm:^2.0.0":
   version: 2.0.0
   resolution: "restore-cursor@npm:2.0.0"
@@ -5963,6 +5990,22 @@ __metadata:
   languageName: node
   linkType: hard
 
+"tsx@npm:^4.16.2":
+  version: 4.16.2
+  resolution: "tsx@npm:4.16.2"
+  dependencies:
+    esbuild: "npm:~0.21.5"
+    fsevents: "npm:~2.3.3"
+    get-tsconfig: "npm:^4.7.5"
+  dependenciesMeta:
+    fsevents:
+      optional: true
+  bin:
+    tsx: dist/cli.mjs
+  checksum: 10/841ccbace3dc0c42704bb5c4cea47e1f4cd313aa4719fd4531e5ed40bb862b02349c76f7c56c53b64207eebbb1c2ac2e117482aabfbf197a30fbc0b2584b60be
+  languageName: node
+  linkType: hard
+
 "type-check@npm:^0.4.0, type-check@npm:~0.4.0":
   version: 0.4.0
   resolution: "type-check@npm:0.4.0"
@@ -6073,6 +6116,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"undici-types@npm:~5.26.4":
+  version: 5.26.5
+  resolution: "undici-types@npm:5.26.5"
+  checksum: 10/0097779d94bc0fd26f0418b3a05472410408877279141ded2bd449167be1aed7ea5b76f756562cb3586a07f251b90799bab22d9019ceba49c037c76445f7cddd
+  languageName: node
+  linkType: hard
+
 "unicorn-magic@npm:^0.1.0":
   version: 0.1.0
   resolution: "unicorn-magic@npm:0.1.0"