From f472296cb002d64412861887e4560f444d0ff92d Mon Sep 17 00:00:00 2001
From: Konrad Perlicki <konrad.perlicki01@gmail.com>
Date: Tue, 19 Sep 2023 23:05:08 +0200
Subject: [PATCH] =?UTF-8?q?=F0=9F=A4=96=20Merge=20PR=20#66731=20Add=20@typ?=
 =?UTF-8?q?es/map-stream=20by=20@KonradPerlicki?=
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* Add @types/map-stream

* Update comment in types/map-stream/index.d.ts

Co-authored-by: Piotr Błażejewicz (Peter Blazejewicz) <peterblazejewicz@users.noreply.github.com>

* Fixed return type

---------

Co-authored-by: Piotr Błażejewicz (Peter Blazejewicz) <peterblazejewicz@users.noreply.github.com>
---
 types/map-stream/index.d.ts          | 38 ++++++++++++++++++++++++++++
 types/map-stream/map-stream-tests.ts | 15 +++++++++++
 types/map-stream/tsconfig.json       | 23 +++++++++++++++++
 types/map-stream/tslint.json         |  1 +
 4 files changed, 77 insertions(+)
 create mode 100644 types/map-stream/index.d.ts
 create mode 100644 types/map-stream/map-stream-tests.ts
 create mode 100644 types/map-stream/tsconfig.json
 create mode 100644 types/map-stream/tslint.json

diff --git a/types/map-stream/index.d.ts b/types/map-stream/index.d.ts
new file mode 100644
index 00000000000000..1706ceceecd0b4
--- /dev/null
+++ b/types/map-stream/index.d.ts
@@ -0,0 +1,38 @@
+// Type definitions for map-stream 0.0
+// Project: http://github.com/dominictarr/map-stream
+// Definitions by: Konrad Perlicki <https://github.com/KonradPerlicki>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node"/>
+
+import { Stream } from 'stream';
+
+export = mapStream;
+
+declare namespace mapStream {
+    interface Options {
+        /**
+         * Continue mapping even if error occured.
+         *
+         * On error `map-stream` will emit `failure` event.
+         *
+         * @default false
+         */
+        failures?: boolean;
+    }
+
+    interface mapStream extends Stream {
+        resume(): void;
+        pause(): void;
+        destroy(): void;
+        end(): void;
+        write(): boolean | never;
+    }
+
+    type Callback = (err: null | Error, data: unknown) => void;
+}
+
+declare function mapStream(
+    mapper: (data: unknown, callback: mapStream.Callback) => void,
+    opts?: mapStream.Options,
+): mapStream.mapStream;
diff --git a/types/map-stream/map-stream-tests.ts b/types/map-stream/map-stream-tests.ts
new file mode 100644
index 00000000000000..aa83d436187155
--- /dev/null
+++ b/types/map-stream/map-stream-tests.ts
@@ -0,0 +1,15 @@
+import map = require('map-stream');
+
+const callback: map.Callback = function (err, data) {};
+
+const fn = map((data, callback) => {}, {
+    failures: true,
+});
+
+fn.pause();
+fn.write();
+fn.resume();
+fn.destroy();
+fn.end();
+
+map((data, callback) => {});
diff --git a/types/map-stream/tsconfig.json b/types/map-stream/tsconfig.json
new file mode 100644
index 00000000000000..aadc96fffd1012
--- /dev/null
+++ b/types/map-stream/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "map-stream-tests.ts"
+    ]
+}
diff --git a/types/map-stream/tslint.json b/types/map-stream/tslint.json
new file mode 100644
index 00000000000000..794cb4bf3e0782
--- /dev/null
+++ b/types/map-stream/tslint.json
@@ -0,0 +1 @@
+{ "extends": "@definitelytyped/dtslint/dt.json" }