From b8ecf08f3421ae9cda4027cfbf96eba78383a923 Mon Sep 17 00:00:00 2001
From: Anton Nesterov <anton@demiurg.io>
Date: Wed, 16 Oct 2024 07:21:20 +0200
Subject: [PATCH] add dist

---
 .gitignore   |  2 +-
 LICENSE      | 21 ++++++++++++++
 README.md    | 14 +++++-----
 dist/grip.js | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 107 insertions(+), 8 deletions(-)
 create mode 100644 LICENSE
 create mode 100644 dist/grip.js

diff --git a/.gitignore b/.gitignore
index 9b1ee42..9b3e627 100644
--- a/.gitignore
+++ b/.gitignore
@@ -118,7 +118,7 @@ out
 # Nuxt.js build / generate output
 
 .nuxt
-dist
+
 
 # Gatsby files
 
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..79c949c
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Anton Nesterov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index 2e9a195..c0c1f7a 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ It makes the control flow similar to that of Golang, but doesn't force you to ma
 ## Install
 
 ```bash
-bun add github:nesterow/grip
+bun add github:nesterow/grip # or pnpm
 ```
 
 ## Usage
@@ -24,20 +24,20 @@ import { grip } from '@nesterow/grip';
 The result can be handled as an object: `{value, status, Ok(), Fail(), Of(type)}`
 
 ```javascript
-const fetchResult = await grip(
+const res = await grip(
   fetch('https://api.example.com')
 );
 
-if (fetchResult.Fail()) {
+if (res.Fail()) {
     handleErrorProperly();
     return;
 }
 
-const jsonResult = await grip(
+const json = await grip(
   res.value.json()
 );
 
-if (jsonResult.Of(SyntaxError)) {
+if (json.Of(SyntaxError)) {
     handleJsonParseError();
     return;
 }
@@ -49,7 +49,7 @@ if (jsonResult.Of(SyntaxError)) {
 The result can also be received as a tuple if you want to handle errors in Go'ish style:
 
 ```javascript
-const [response, fetchStatus] = await grip(
+const [res, fetchStatus] = await grip(
   fetch('https://api.example.com')
 );
 if (fetchStatus.Fail()) {
@@ -58,7 +58,7 @@ if (fetchStatus.Fail()) {
 }
 
 const [json, parseStatus] = await grip(
-  response.json()
+  res.json()
 );
 if (parseStatus.Of(SyntaxError)) {
     handleJsonParseError();
diff --git a/dist/grip.js b/dist/grip.js
new file mode 100644
index 0000000..fe42fe5
--- /dev/null
+++ b/dist/grip.js
@@ -0,0 +1,78 @@
+// grip.ts
+function grip(action) {
+  if (action instanceof Promise) {
+    return promise(action);
+  }
+  try {
+    const result = action();
+    if (result instanceof Promise) {
+      return promise(result);
+    }
+    return new Result(result, new Ok);
+  } catch (err) {
+    return new Result(null, Err.fromCatch(err));
+  }
+}
+
+class Err extends Error {
+  Ok() {
+    return false;
+  }
+  Fail() {
+    return true;
+  }
+  Of(cls) {
+    return this.cause instanceof cls || this instanceof cls;
+  }
+  static fromCatch(error) {
+    const e = new Err(typeof error === "string" ? error : error.message);
+    e.cause = error;
+    e.stack = error.stack;
+    return e;
+  }
+}
+
+class Ok extends Error {
+  Ok() {
+    return true;
+  }
+  Fail() {
+    return false;
+  }
+  Of(cls) {
+    return this instanceof cls;
+  }
+}
+
+class Result extends Array {
+  0;
+  1;
+  constructor(result, status) {
+    super(2);
+    this[0] = result;
+    this[1] = status;
+  }
+  get value() {
+    return this[0];
+  }
+  get status() {
+    return this[1];
+  }
+  Ok() {
+    return this[1].Ok();
+  }
+  Fail() {
+    return this[1].Fail();
+  }
+  Of(impl) {
+    return this[1].Of(impl);
+  }
+}
+var promise = (result) => {
+  return result.then((res) => new Result(res, new Ok)).catch((err) => new Result(null, Err.fromCatch(err)));
+};
+export {
+  grip,
+  Ok,
+  Err
+};