From bf696e60dbb8945661631df8d0b54699f13b2330 Mon Sep 17 00:00:00 2001
From: Karol Majewski <karol-majewski@users.noreply.github.com>
Date: Tue, 12 Feb 2019 03:37:55 +0100
Subject: [PATCH] [use-persisted-state] Add new definition

---
 types/use-persisted-state/index.d.ts          | 11 +++++
 types/use-persisted-state/tsconfig.json       | 24 ++++++++++
 types/use-persisted-state/tslint.json         |  1 +
 .../use-persisted-state-tests.ts              | 45 +++++++++++++++++++
 4 files changed, 81 insertions(+)
 create mode 100644 types/use-persisted-state/index.d.ts
 create mode 100644 types/use-persisted-state/tsconfig.json
 create mode 100644 types/use-persisted-state/tslint.json
 create mode 100644 types/use-persisted-state/use-persisted-state-tests.ts

diff --git a/types/use-persisted-state/index.d.ts b/types/use-persisted-state/index.d.ts
new file mode 100644
index 0000000000..76b0271986
--- /dev/null
+++ b/types/use-persisted-state/index.d.ts
@@ -0,0 +1,11 @@
+// Type definitions for use-persisted-state 0.3
+// Project: https://github.com/donavon/use-persisted-state#readme
+// Definitions by: Karol Majewski <https://github.com/karol-majewski>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.8
+import { useState } from 'react';
+
+declare function createPersistedState(key: string, provider?: Pick<Storage, 'getItem' | 'setItem'>): typeof useState;
+
+export as namespace createPersistedState;
+export default createPersistedState;
diff --git a/types/use-persisted-state/tsconfig.json b/types/use-persisted-state/tsconfig.json
new file mode 100644
index 0000000000..e6765dca73
--- /dev/null
+++ b/types/use-persisted-state/tsconfig.json
@@ -0,0 +1,24 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6",
+            "dom"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "use-persisted-state-tests.ts"
+    ]
+}
diff --git a/types/use-persisted-state/tslint.json b/types/use-persisted-state/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/use-persisted-state/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }
diff --git a/types/use-persisted-state/use-persisted-state-tests.ts b/types/use-persisted-state/use-persisted-state-tests.ts
new file mode 100644
index 0000000000..74c7a8eee7
--- /dev/null
+++ b/types/use-persisted-state/use-persisted-state-tests.ts
@@ -0,0 +1,45 @@
+import createPersistedState from 'use-persisted-state';
+import { useState } from 'react';
+
+/**
+ * Only the first argument is required.
+ */
+createPersistedState('myKey');
+
+/**
+ * The generated hook conforms to the same signature as `React.useState`.
+ */
+const myHook: typeof useState = createPersistedState('myKey');
+
+/**
+ * Custom storage provider can be passed as the second argument.
+ */
+createPersistedState('myKey', localStorage);
+createPersistedState('myKey', sessionStorage);
+
+/**
+ * The provider is similar to the `Storage` interface,
+ * but cares only about `getItem` and `setItem` methods.
+ */
+const { getItem, setItem } = localStorage;
+createPersistedState('myKey', { getItem, setItem });
+
+/**
+ * At least one argument must be provided.
+ */
+createPersistedState(); // $ExpectError
+
+/**
+ * The `key` argument must be of type `string`.
+ */
+createPersistedState(1);               // $ExpectError
+createPersistedState({});              // $ExpectError
+createPersistedState(Symbol.iterator); // $ExpectError
+createPersistedState(undefined);       // $ExpectError
+
+/**
+ * The `provider` argument, when passed, must partially implement `Storage`.
+ */
+createPersistedState('myKey', { });                               // $ExpectError
+createPersistedState('myKey', { getItem: localStorage.getItem }); // $ExpectError
+createPersistedState('myKey', { setItem: localStorage.setItem }); // $ExpectError