From 7da7e760a6ffa6566a0e949ad5344a68f4a428c4 Mon Sep 17 00:00:00 2001
From: Guy Bedford <guybedford@gmail.com>
Date: Fri, 1 Jun 2018 23:07:29 +0200
Subject: [PATCH] support import.meta in system transform

---
 .../src/index.js                                   | 14 ++++++++++++++
 .../fixtures/dynamic-import/import-meta/input.mjs  |  1 +
 .../fixtures/dynamic-import/import-meta/output.mjs | 10 ++++++++++
 .../test/fixtures/dynamic-import/options.json      |  2 +-
 4 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/input.mjs
 create mode 100644 packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/output.mjs

diff --git a/packages/babel-plugin-transform-modules-systemjs/src/index.js b/packages/babel-plugin-transform-modules-systemjs/src/index.js
index 3111665fa9..4e4085a9cd 100644
--- a/packages/babel-plugin-transform-modules-systemjs/src/index.js
+++ b/packages/babel-plugin-transform-modules-systemjs/src/index.js
@@ -87,6 +87,20 @@ export default declare((api, options) => {
         }
       },
 
+      MetaProperty(path, state) {
+        if (
+          path.node.meta.name === "import" &&
+          path.node.property.name === "meta"
+        ) {
+          path.replaceWith(
+            t.memberExpression(
+              t.identifier(state.contextIdent),
+              t.identifier("meta"),
+            ),
+          );
+        }
+      },
+
       ReferencedIdentifier(path, state) {
         if (
           path.node.name == "__moduleName" &&
diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/input.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/input.mjs
new file mode 100644
index 0000000000..0c4061a00d
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/input.mjs
@@ -0,0 +1 @@
+console.log(import.meta.url);
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/output.mjs b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/output.mjs
new file mode 100644
index 0000000000..2d127a5d0e
--- /dev/null
+++ b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/import-meta/output.mjs
@@ -0,0 +1,10 @@
+System.register([], function (_export, _context) {
+  "use strict";
+
+  return {
+    setters: [],
+    execute: function () {
+      console.log(_context.meta.url);
+    }
+  };
+});
diff --git a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/options.json b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/options.json
index e10d38ab34..d9d5e3ac62 100644
--- a/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/options.json
+++ b/packages/babel-plugin-transform-modules-systemjs/test/fixtures/dynamic-import/options.json
@@ -1,3 +1,3 @@
 {
-  "plugins": ["external-helpers", "syntax-dynamic-import", "transform-modules-systemjs"]
+  "plugins": ["external-helpers", "syntax-dynamic-import", "syntax-import-meta", "transform-modules-systemjs"]
 }