abort-polyfill - npm Package Compare versions

Comparing version 0.0.1 to 0.1.0

index.js

@@ -1,120 +0,4 @@
-/**
- * @fileoverview
- *
- * @see https://mdn.io/AbortSignal
- * @see https://github.com/nodejs/node/blob/master/lib/internal/abort_controller.js
- * @see https://github.com/denoland/deno/blob/master/op_crates/web/02_abort_signal.js
- */
-function impl() {
-  const hasSymbol = typeof Symbol === 'function'
-  const getSymbol = hasSymbol ? Symbol : (v) => v
-  const kAborted = getSymbol('kAborted')
-  const kSignal = getSymbol('kSignal')
+import {AbortSignal, AbortController} from './abort'
+import {abortable} from './fetch'
 
-  // NOTE: not using `class extends`, making it compatible with IE 11 and Firefox 59+
-  // see https://caniuse.com/mdn-api_eventtarget_eventtarget
-  function AbortSignal() {
-    throw new TypeError('Illegal constructor')
-  }
-  AbortSignal.prototype = Object.create(EventTarget.prototype, {
-    constructor: {value: AbortSignal},
-    aborted: {
-      enumerable: true,
-      get() {
-        return this[kAborted]
-      },
-    },
-  })
-
-  const kHandlers = getSymbol('kHandlers')
-  function getHandlers(self) {
-    if (!self[kHandlers]) {
-      self[kHandlers] = new Map()
-    }
-    return self[kHandlers]
-  }
-  function defineEventHandler(emitter, name) {
-    Object.defineProperty(emitter, 'on' + name, {
-      get() {
-        return getHandlers(this).get(name) || null
-      },
-      set(value) {
-        const handlers = getHandlers(this)
-        const handler = handlers.get(name)
-        if (handler) {
-          this.removeEventListener(name, handler)
-        }
-        if (typeof value === 'function') {
-          const newHandler = value.bind(this)
-          handlers.set(name, newHandler)
-          this.addEventListener(name, newHandler)
-        } else {
-          handlers.set(name, null)
-        }
-      },
-      configurable: true,
-      enumerable: true,
-    })
-  }
-
-  defineEventHandler(AbortSignal.prototype, 'abort')
-
-  function createAbortSignal() {
-    let signal
-    try {
-      // https://caniuse.com/mdn-api_eventtarget_eventtarget
-      signal = new EventTarget()
-    } catch (e) {
-      signal = new MessageChannel().port1
-    }
-    Object.setPrototypeOf(signal, AbortSignal.prototype)
-    signal[kAborted] = false
-    return signal
-  }
-
-  function abortSignal(signal) {
-    if (signal[kAborted]) return
-    signal[kAborted] = true
-    // https://caniuse.com/mdn-api_event_event
-    const event = new Event('abort')
-    signal.dispatchEvent(event)
-  }
-
-  function AbortController() {
-    this[kSignal] = createAbortSignal()
-  }
-
-  Object.defineProperties(AbortController.prototype, {
-    signal: {
-      enumerable: true,
-      get() {
-        return this[kSignal]
-      },
-    },
-    abort: {
-      enumerable: true,
-      value() {
-        abortSignal(this[kSignal])
-      },
-    },
-  })
-
-  function defineStringTag(ctor, tag) {
-    if (hasSymbol && Symbol.toStringTag) {
-      Object.defineProperty(ctor.prototype, Symbol.toStringTag, {value: tag})
-    } else {
-      Object.defineProperty(ctor.prototype, 'toString', {
-        value() {
-          return '[object ' + tag + ']'
-        },
-      })
-    }
-  }
-
-  defineStringTag(AbortSignal, 'AbortSignal')
-  defineStringTag(AbortController, 'AbortController')
-
-  return {AbortController, AbortSignal}
-}
-
 const root =
@@ -126,3 +10,7 @@ (typeof globalThis !== 'undefined' && globalThis) ||
 if (!root.AbortController) {
-  Object.assign(root, impl())
+  Object.assign(root, {AbortSignal, AbortController})
 }
+
+if (root.fetch) {
+  root.fetch = abortable(root.fetch)
+}

package.json

 {
   "name": "abort-polyfill",
-  "version": "0.0.1",
+  "version": "0.1.0",
   "description": "Polyfill AbortController and AbortSignal",
   "license": "MIT",
-  "main": "index.js",
+  "main": "dist/index.js",
   "scripts": {
-    "prepare": "npm test",
-    "build": "esbuild index.js --bundle --outfile=index.cjs.js --minify-syntax",
+    "prepare": "npm test && npm run build",
+    "prebuild": "rm -rf dist",
+    "build": "esbuild index.js --bundle --outfile=dist/index.js --minify-syntax",
     "test": "jest",
@@ -15,3 +16,3 @@ "test:coverage": "jest --coverage",
   "files": [
-    "index.cjs.js",
+    "dist",
     "index.js"
@@ -18,0 +19,0 @@ ],

README.md

 # abort-polyfill
 
+- Polyfill AbortController and AbortSignal
+- Polyfill signal options to legacy fetch
+
+[![abort-polyfill](https://badgen.net/bundlephobia/minzip/abort-polyfill)](https://bundlephobia.com/result?p=abort-polyfill)
+
 ## Install
@@ -11,4 +16,22 @@
 
+Any browsers (IE 10+):
+
 ```js
+import 'cross-fetch/polyfill'
 import 'abort-polyfill'
 ```
+
+Node < 15:
+
+```js
+import 'cross-fetch/polyfill'
+import 'event-target-polyfill'
+import 'abort-polyfill'
+```
+
+Node >= 15:
+
+```js
+import 'cross-fetch/polyfill'
+// no need to import polyfill
+```

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Improved metrics

Total package byte prevSize

6477

increased by27.07%

Number of package files

5

increased by25%

Lines of code

125

increased by8.7%

Number of lines in readme file

37

increased by164.29%

Worsened metrics

Number of medium supply chain risk alerts

4

increased byInfinity%

No dependency changes