From adb4701e003e5ee8fa32c01e69d0fbfd5e8acc5b Mon Sep 17 00:00:00 2001
From: Denis Pushkarev <zloirock@zloirock.ru>
Date: Sun, 24 Mar 2019 07:03:25 +0700
Subject: [PATCH] Normalize `core-js` entry points (#9752)

* normalize `core-js` entry points names

* Update packages/babel-preset-env/src/polyfills/corejs3/entry-plugin.js

Co-Authored-By: zloirock <zloirock@zloirock.ru>

* handle windows paths
---
 .../src/polyfills/corejs3/entry-plugin.js            |  6 ++++++
 .../fixtures/corejs3/entry-normalization/input.mjs   |  7 +++++++
 .../corejs3/entry-normalization/options.json         | 12 ++++++++++++
 .../fixtures/corejs3/entry-normalization/output.mjs  | 11 +++++++++++
 4 files changed, 36 insertions(+)
 create mode 100644 packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/input.mjs
 create mode 100644 packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/options.json
 create mode 100644 packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/output.mjs

diff --git a/packages/babel-preset-env/src/polyfills/corejs3/entry-plugin.js b/packages/babel-preset-env/src/polyfills/corejs3/entry-plugin.js
index da8034779d..1d8d3df0a2 100644
--- a/packages/babel-preset-env/src/polyfills/corejs3/entry-plugin.js
+++ b/packages/babel-preset-env/src/polyfills/corejs3/entry-plugin.js
@@ -21,6 +21,12 @@ function isBabelPolyfillSource(source) {
 }
 
 function isCoreJSSource(source) {
+  if (typeof source === "string") {
+    source = source
+      .replace(/\\/g, "/")
+      .replace(/(\/(index)?)?(\.js)?$/i, "")
+      .toLowerCase();
+  }
   return has(corejsEntries, source) && corejsEntries[source];
 }
 
diff --git a/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/input.mjs b/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/input.mjs
new file mode 100644
index 0000000000..5617711cfa
--- /dev/null
+++ b/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/input.mjs
@@ -0,0 +1,7 @@
+import 'core-js/es/map/index.js';
+import 'core-js/es/set/index';
+import 'core-js/es/array/from.js';
+import 'core-js/es/promise/';
+import 'cOrE-jS/eS/SymBOL/iTERator';
+import 'core-js\\es\\symbol\\async-iterator';
+import 'foo/index.js';
diff --git a/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/options.json b/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/options.json
new file mode 100644
index 0000000000..fe930890ee
--- /dev/null
+++ b/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/options.json
@@ -0,0 +1,12 @@
+{
+  "presets": [
+    [
+      "../../../../lib",
+      {
+        "modules": false,
+        "useBuiltIns": "entry",
+        "corejs": 3
+      }
+    ]
+  ]
+}
diff --git a/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/output.mjs b/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/output.mjs
new file mode 100644
index 0000000000..479672b52e
--- /dev/null
+++ b/packages/babel-preset-env/test/fixtures/corejs3/entry-normalization/output.mjs
@@ -0,0 +1,11 @@
+import "core-js/modules/es.symbol.async-iterator";
+import "core-js/modules/es.symbol.iterator";
+import "core-js/modules/es.array.from";
+import "core-js/modules/es.map";
+import "core-js/modules/es.object.to-string";
+import "core-js/modules/es.promise";
+import "core-js/modules/es.promise.finally";
+import "core-js/modules/es.set";
+import "core-js/modules/es.string.iterator";
+import "core-js/modules/web.dom-collections.iterator";
+import 'foo/index.js';