Add types for yawn-yaml (#41627)

* Add types for yawn-yaml

* PR comments

types/yawn-yaml/cjs/index.d.ts

@@ -0,0 +1,7 @@
+export default class YAWN {
+    constructor(content: string);
+    json: any;
+    yaml: string;
+    getRemark(path: string): string;
+    setRemark(path: string, remark: string): boolean;
+}

types/yawn-yaml/index.d.ts

@@ -0,0 +1,11 @@
+// Type definitions for yawn-yaml 1.4
+// Project: https://github.com/mohsen1/yawn-yaml#readme
+// Definitions by: Jamie Magee <https://github.com/JamieMagee>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+export default class YAWN {
+    constructor(content: string);
+    json: any;
+    yaml: string;
+    getRemark(path: string): string;
+    setRemark(path: string, remark: string): boolean;
+}

types/yawn-yaml/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",
+        "yawn-yaml-tests.ts"
+    ]
+}

types/yawn-yaml/tslint.json

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

types/yawn-yaml/yawn-yaml-tests.ts

@@ -0,0 +1,7 @@
+import YAML from 'yawn-yaml/cjs';
+
+const yaml = new YAML(''); // $ExpectType YAWN
+yaml.json; // $ExpectType any
+yaml.yaml; // $ExpectType string
+yaml.getRemark(''); // $ExpectType string
+yaml.setRemark('', ''); // $ExpectType boolean