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-rw-r--r--js/public/shadow/Symbol.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/js/public/shadow/Symbol.h b/js/public/shadow/Symbol.h
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+++ b/js/public/shadow/Symbol.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * 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/. */
+
+/* Shadow definition of |JS::Symbol| innards. Do not use this directly! */
+
+#ifndef js_shadow_Symbol_h
+#define js_shadow_Symbol_h
+
+#include <stdint.h> // uint32_t
+
+namespace js {
+namespace gc {
+struct Cell;
+} // namespace gc
+} // namespace js
+
+namespace JS {
+
+namespace shadow {
+
+struct Symbol {
+ void* _1;
+ uint32_t code_;
+ static constexpr uint32_t WellKnownAPILimit = 0x80000000;
+
+ static bool isWellKnownSymbol(const js::gc::Cell* cell) {
+ return reinterpret_cast<const Symbol*>(cell)->code_ < WellKnownAPILimit;
+ }
+};
+
+} // namespace shadow
+
+} // namespace JS
+
+#endif // js_shadow_Symbol_h