1317153 - Provide better error message when errornous syntax possibly match "await SOMETHING" outside async function.

1 files changed, 16 insertions, 0 deletions

diff --git a/js/src/tests/ecma_2017/AsyncFunctions/await-error.js b/js/src/tests/ecma_2017/AsyncFunctions/await-error.js
new file mode 100644
index 0000000000..1f40ea8a0b
--- /dev/null
+++ b/js/src/tests/ecma_2017/AsyncFunctions/await-error.js
@@ -0,0 +1,16 @@
+var BUGNUMBER = 1317153;
+var summary = "await outside of async function should provide better error";
+
+print(BUGNUMBER + ": " + summary);
+
+let caught = false;
+try {
+    eval("await 10");
+} catch(e) {
+    assertEq(e.message, "await is only valid in async functions");
+    caught = true;
+}
+assertEq(caught, true);
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);