From f6934a1d20e1e30e1466f2ae3acb377d40091971 Mon Sep 17 00:00:00 2001
From: Conduitry <git@fur.army>
Date: Fri, 31 Mar 2017 08:20:37 -0400
Subject: [PATCH] disallow `import root` during validation

---
 src/validate/js/index.js                       | 8 ++++++++
 test/validator/samples/import-root/errors.json | 8 ++++++++
 test/validator/samples/import-root/input.html  | 3 +++
 3 files changed, 19 insertions(+)
 create mode 100644 test/validator/samples/import-root/errors.json
 create mode 100644 test/validator/samples/import-root/input.html

diff --git a/src/validate/js/index.js b/src/validate/js/index.js
index 0e6d0488f1..cdef266c96 100644
--- a/src/validate/js/index.js
+++ b/src/validate/js/index.js
@@ -63,5 +63,13 @@ export default function validateJs ( validator, js ) {
 
 			validator.defaultExport = node;
 		}
+
+		if ( node.type === 'ImportDeclaration' ) {
+			node.specifiers.forEach( specifier => {
+				if ( specifier.local.name === 'root' ) {
+					validator.error( `Imported identifiers cannot have a name of 'root' due to technical limitations`, specifier.start );
+				}
+			});
+		}
 	});
 }
diff --git a/test/validator/samples/import-root/errors.json b/test/validator/samples/import-root/errors.json
new file mode 100644
index 0000000000..ec9384b0c8
--- /dev/null
+++ b/test/validator/samples/import-root/errors.json
@@ -0,0 +1,8 @@
+[{
+	"message": "Imported identifiers cannot have a name of 'root' due to technical limitations",
+	"pos": 17,
+	"loc": {
+		"line": 2,
+		"column": 8
+	}
+}]
diff --git a/test/validator/samples/import-root/input.html b/test/validator/samples/import-root/input.html
new file mode 100644
index 0000000000..d1cda13562
--- /dev/null
+++ b/test/validator/samples/import-root/input.html
@@ -0,0 +1,3 @@
+<script>
+	import root from 'foo';
+</script>