From 1cf9740ca98ee6298bb28babebf19f14e75a623b Mon Sep 17 00:00:00 2001
From: Irakli Gozalishvili <rfobic@gmail.com>
Date: Thu, 4 Apr 2019 12:16:02 -0700
Subject: [PATCH] feat: add flow typedefs

Add flow type definitions which would improve workflow for dependent libraries that happen to use flow type-checker.
---
 .flowconfig       | 11 +++++++++++
 src/index.js.flow | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 .flowconfig
 create mode 100644 src/index.js.flow

diff --git a/.flowconfig b/.flowconfig
new file mode 100644
index 0000000..1fed445
--- /dev/null
+++ b/.flowconfig
@@ -0,0 +1,11 @@
+[ignore]
+
+[include]
+
+[libs]
+
+[lints]
+
+[options]
+
+[strict]
diff --git a/src/index.js.flow b/src/index.js.flow
new file mode 100644
index 0000000..4216deb
--- /dev/null
+++ b/src/index.js.flow
@@ -0,0 +1,32 @@
+// @flow strict
+
+export type Version = 0 | 1
+export type Codec = string
+export type Multihash = Buffer
+export type BaseEncodedString = string
+
+declare class CID<a> {
+  constructor(Version, Codec, Multihash): void;
+  constructor(BaseEncodedString): void;
+  constructor(Buffer): void;
+
+  +codec: Codec;
+  +multihash: Multihash;
+  +buffer: Buffer;
+  +prefix: Buffer;
+
+  toV0(): CID<a>;
+  toV1(): CID<a>;
+  toBaseEncodedString(base?: string): BaseEncodedString;
+  toString(): BaseEncodedString;
+  toJSON(): { codec: Codec, version: Version, hash: Multihash };
+
+  equals(mixed): boolean;
+
+  static codecs: { [string]: Codec };
+  static isCID(mixed): boolean;
+  static validateCID(mixed): void;
+}
+
+export default CID
+export type { CID }