From 87321b0adcfa8108a3445d13997d3942df0def9a Mon Sep 17 00:00:00 2001
From: Jon Coppeard <jcoppeard@mozilla.com>
Date: Tue, 18 Sep 2018 14:17:10 +0100
Subject: [PATCH] Bug 1492074 - Syntax parse of dynamic module import syntax
 should fail since this is not yet implemented r=jandem on a CLOSED TREE

---
 js/src/frontend/Parser.cpp                           | 4 ++++
 js/src/jit-test/tests/modules/dynamic-import-lazy.js | 6 ++++++
 2 files changed, 10 insertions(+)
 create mode 100644 js/src/jit-test/tests/modules/dynamic-import-lazy.js

diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp
index aa835c93ae86..67855ef8cc81 100644
--- a/js/src/frontend/Parser.cpp
+++ b/js/src/frontend/Parser.cpp
@@ -10597,6 +10597,10 @@ Parser<ParseHandler, CharT>::importExpr(YieldHandling yieldHandling)
 
         MUST_MATCH_TOKEN_MOD(TokenKind::RightParen, TokenStream::Operand, JSMSG_PAREN_AFTER_ARGS);
 
+        if (!abortIfSyntaxParser()) {
+            return null();
+        }
+
         return handler.newCallImport(importHolder, arg);
     } else {
         error(JSMSG_UNEXPECTED_TOKEN_NO_EXPECT, TokenKindToDesc(next));
diff --git a/js/src/jit-test/tests/modules/dynamic-import-lazy.js b/js/src/jit-test/tests/modules/dynamic-import-lazy.js
new file mode 100644
index 000000000000..f1b31b3608da
--- /dev/null
+++ b/js/src/jit-test/tests/modules/dynamic-import-lazy.js
@@ -0,0 +1,6 @@
+// |jit-test| error: SyntaxError
+
+function lazyilyParsedFunction()
+{
+    return import("/module1.js");
+}