Add m-esr52 at 52.6.0

1 files changed, 53 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testUncaughtSymbol.cpp b/js/src/jsapi-tests/testUncaughtSymbol.cpp
new file mode 100644
index 000000000..a916b23d3
--- /dev/null
+++ b/js/src/jsapi-tests/testUncaughtSymbol.cpp
@@ -0,0 +1,53 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi-tests/tests.h"
+
+using JS::CreateError;
+using JS::Rooted;
+using JS::ObjectValue;
+using JS::Value;
+
+enum SymbolExceptionType {
+    NONE,
+    SYMBOL_ITERATOR,
+    SYMBOL_FOO,
+    SYMBOL_EMPTY,
+};
+
+BEGIN_TEST(testUncaughtSymbol)
+{
+    CHECK(!execDontReport("throw Symbol.iterator;", __FILE__, __LINE__));
+    CHECK(GetSymbolExceptionType(cx) == SYMBOL_ITERATOR);
+
+    CHECK(!execDontReport("throw Symbol('foo');", __FILE__, __LINE__));
+    CHECK(GetSymbolExceptionType(cx) == SYMBOL_FOO);
+
+    CHECK(!execDontReport("throw Symbol();", __FILE__, __LINE__));
+    CHECK(GetSymbolExceptionType(cx) == SYMBOL_EMPTY);
+
+    return true;
+}
+
+static SymbolExceptionType
+GetSymbolExceptionType(JSContext* cx)
+{
+    JS::RootedValue exn(cx);
+    MOZ_RELEASE_ASSERT(JS_GetPendingException(cx, &exn));
+    MOZ_RELEASE_ASSERT(exn.isSymbol());
+    JS_ClearPendingException(cx);
+
+    js::ErrorReport report(cx);
+    MOZ_RELEASE_ASSERT(report.init(cx, exn, js::ErrorReport::WithSideEffects));
+
+    if (strcmp(report.toStringResult().c_str(), "uncaught exception: Symbol(Symbol.iterator)") == 0)
+        return SYMBOL_ITERATOR;
+    if (strcmp(report.toStringResult().c_str(), "uncaught exception: Symbol(foo)") == 0)
+        return SYMBOL_FOO;
+    if (strcmp(report.toStringResult().c_str(), "uncaught exception: Symbol()") == 0)
+        return SYMBOL_EMPTY;
+    MOZ_CRASH("Unexpected symbol");
+}
+
+END_TEST(testUncaughtSymbol)