From b178a98ffd261b1bcc0c7c220ab8bc46b3f44cf8 Mon Sep 17 00:00:00 2001
From: Dave Cardwell <hello@davecardwell.com>
Date: Wed, 24 Oct 2018 20:53:02 -0400
Subject: [PATCH 1/2] [browserslist] Add initial types for browserslist

---
 types/browserslist/browserslist-tests.ts | 22 ++++++++++++++++
 types/browserslist/index.d.ts            | 33 ++++++++++++++++++++++++
 types/browserslist/tsconfig.json         | 16 ++++++++++++
 types/browserslist/tslint.json           |  1 +
 4 files changed, 72 insertions(+)
 create mode 100644 types/browserslist/browserslist-tests.ts
 create mode 100644 types/browserslist/index.d.ts
 create mode 100644 types/browserslist/tsconfig.json
 create mode 100644 types/browserslist/tslint.json

diff --git a/types/browserslist/browserslist-tests.ts b/types/browserslist/browserslist-tests.ts
new file mode 100644
index 0000000000..d5e88e5b5d
--- /dev/null
+++ b/types/browserslist/browserslist-tests.ts
@@ -0,0 +1,22 @@
+import browserslist from "browserslist";
+
+browserslist(); // $ExpectType string[]
+browserslist(""); // $ExpectType string[]
+browserslist([""]); // $ExpectType string[]
+
+const opts: browserslist.Options[] = [
+    {},
+    { path: "" },
+    { env: "" },
+    { stats: { "": { "": 0 } } },
+    { config: "" },
+    { ignoreUnknownVersions: false },
+    { dangerousExtend: false }
+];
+for (const opt of opts) {
+    browserslist("", opt); // $ExpectType string[]
+    browserslist([""], opt); // $ExpectType string[]
+}
+
+browserslist.coverage([""]); // $ExpectType number
+browserslist.coverage([""], { "": { "": 0 } }); // $ExpectType number
diff --git a/types/browserslist/index.d.ts b/types/browserslist/index.d.ts
new file mode 100644
index 0000000000..6edcb47ab4
--- /dev/null
+++ b/types/browserslist/index.d.ts
@@ -0,0 +1,33 @@
+// Type definitions for browserslist 4.3
+// Project: https://github.com/browserslist/browserslist#readme
+// Definitions by: Dave Cardwell <https://github.com/davecardwell>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare namespace browserslist {
+    interface Browserslist {
+        (queries?: string | ReadonlyArray<string>, opts?: Options): string[];
+
+        coverage: (browsers: ReadonlyArray<string>, stats?: Stats) => number;
+
+        clearCaches: () => void;
+    }
+
+    interface Stats {
+        [browser: string]: {
+            [version: string]: number;
+        };
+    }
+
+    interface Options {
+        path?: string;
+        env?: string;
+        stats?: Stats;
+        config?: string;
+        ignoreUnknownVersions?: boolean;
+        dangerousExtend?: boolean;
+    }
+}
+
+declare var browserslist: browserslist.Browserslist;
+
+export default browserslist;
diff --git a/types/browserslist/tsconfig.json b/types/browserslist/tsconfig.json
new file mode 100644
index 0000000000..11138a612f
--- /dev/null
+++ b/types/browserslist/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": ["index.d.ts", "browserslist-tests.ts"]
+}
diff --git a/types/browserslist/tslint.json b/types/browserslist/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/browserslist/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }

From 4bcadac46916c00d9463d155563e890b56a93214 Mon Sep 17 00:00:00 2001
From: Dave Cardwell <hello@davecardwell.com>
Date: Thu, 8 Nov 2018 12:55:17 -0500
Subject: [PATCH 2/2] [browserslist] Switch to `export =`

---
 types/browserslist/index.d.ts    | 3 ++-
 types/browserslist/tsconfig.json | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/types/browserslist/index.d.ts b/types/browserslist/index.d.ts
index 6edcb47ab4..7c4a0add0c 100644
--- a/types/browserslist/index.d.ts
+++ b/types/browserslist/index.d.ts
@@ -2,6 +2,7 @@
 // Project: https://github.com/browserslist/browserslist#readme
 // Definitions by: Dave Cardwell <https://github.com/davecardwell>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.7
 
 declare namespace browserslist {
     interface Browserslist {
@@ -30,4 +31,4 @@ declare namespace browserslist {
 
 declare var browserslist: browserslist.Browserslist;
 
-export default browserslist;
+export = browserslist;
diff --git a/types/browserslist/tsconfig.json b/types/browserslist/tsconfig.json
index 11138a612f..cf68d8bf64 100644
--- a/types/browserslist/tsconfig.json
+++ b/types/browserslist/tsconfig.json
@@ -10,7 +10,8 @@
         "typeRoots": ["../"],
         "types": [],
         "noEmit": true,
-        "forceConsistentCasingInFileNames": true
+        "forceConsistentCasingInFileNames": true,
+        "esModuleInterop": true
     },
     "files": ["index.d.ts", "browserslist-tests.ts"]
 }