1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/non262/syntax/syntax-parsed-arrow-then-bigint.js b/js/src/tests/non262/syntax/syntax-parsed-arrow-then-bigint.js
new file mode 100644
index 0000000000..d7a4ccd092
--- /dev/null
+++ b/js/src/tests/non262/syntax/syntax-parsed-arrow-then-bigint.js
@@ -0,0 +1,40 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 1596706;
+var summary =
+  "Properly evaluate a bigint literal that's initially tokenized by a syntax " +
+  "parser (because the bigint literal appears immediately after an arrow " +
+  "function with expression body)";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+// block followed by semicolon
+assertEq(eval(`x=>{};
+17n`), 17n);
+
+// block not followed by semicolon
+assertEq(eval(`x=>{}
+42n`), 42n);
+
+// expr followed by semicolon
+assertEq(eval(`x=>y;
+8675309n`), 8675309n);
+
+// expr not followed by semicolon
+assertEq(eval(`x=>y
+78051120n`), 78051120n);
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");