[p-tap] introduce typings (#18711)

types/p-tap/index.d.ts

@@ -0,0 +1,13 @@
+// Type definitions for p-tap 1.0
+// Project: https://github.com/sindresorhus/p-tap#readme
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export = pTap;
+
+declare const pTap: pTap;
+
+interface pTap {
+    <T>(fn: (value: T) => any): (value: T) => Promise<T>;
+    catch(fn: (value: any) => any): (value: any) => Promise<never>;
+}

types/p-tap/p-tap-tests.ts

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+import pTap = require('p-tap');
+
+Promise.resolve('unicorn')
+    .then(pTap<string>(val => {
+        let str: string = val;
+        return 1;
+    }))
+    .then(val => {
+        let str: string = val;
+    });
+
+Promise.resolve('unicorn')
+    .then(pTap<string>(val => {
+        let str: string = val;
+        return Promise.resolve(1);
+    }))
+    .then(val => {
+        let str: string = val;
+    });
+
+Promise.reject(new Error())
+    .catch(pTap.catch(val => {
+        const num: number = val;
+    }))
+    .then(() => 1)
+    .catch(() => {});

types/p-tap/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "p-tap-tests.ts"
+    ]
+}

types/p-tap/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }