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-rw-r--r--js/src/builtin/Symbol.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/js/src/builtin/Symbol.h b/js/src/builtin/Symbol.h
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+++ b/js/src/builtin/Symbol.h
@@ -0,0 +1,71 @@
+/* -*- 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/. */
+
+#ifndef builtin_Symbol_h
+#define builtin_Symbol_h
+
+#include "vm/NativeObject.h"
+
+namespace JS {
+class Symbol;
+}
+
+namespace js {
+
+class SymbolObject : public NativeObject {
+ /* Stores this Symbol object's [[PrimitiveValue]]. */
+ static const unsigned PRIMITIVE_VALUE_SLOT = 0;
+
+ public:
+ static const unsigned RESERVED_SLOTS = 1;
+
+ static const JSClass class_;
+ static const JSClass& protoClass_;
+
+ /*
+ * Creates a new Symbol object boxing the given primitive Symbol. The
+ * object's [[Prototype]] is determined from context.
+ */
+ static SymbolObject* create(JSContext* cx, JS::HandleSymbol symbol);
+
+ JS::Symbol* unbox() const {
+ return getFixedSlot(PRIMITIVE_VALUE_SLOT).toSymbol();
+ }
+
+ private:
+ inline void setPrimitiveValue(JS::Symbol* symbol) {
+ setFixedSlot(PRIMITIVE_VALUE_SLOT, SymbolValue(symbol));
+ }
+
+ [[nodiscard]] static bool construct(JSContext* cx, unsigned argc, Value* vp);
+
+ // Static methods.
+ [[nodiscard]] static bool for_(JSContext* cx, unsigned argc, Value* vp);
+ [[nodiscard]] static bool keyFor(JSContext* cx, unsigned argc, Value* vp);
+
+ // Methods defined on Symbol.prototype.
+ [[nodiscard]] static bool toString_impl(JSContext* cx, const CallArgs& args);
+ [[nodiscard]] static bool toString(JSContext* cx, unsigned argc, Value* vp);
+ [[nodiscard]] static bool valueOf_impl(JSContext* cx, const CallArgs& args);
+ [[nodiscard]] static bool valueOf(JSContext* cx, unsigned argc, Value* vp);
+ [[nodiscard]] static bool toPrimitive(JSContext* cx, unsigned argc,
+ Value* vp);
+
+ // Properties defined on Symbol.prototype.
+ [[nodiscard]] static bool descriptionGetter_impl(JSContext* cx,
+ const CallArgs& args);
+ [[nodiscard]] static bool descriptionGetter(JSContext* cx, unsigned argc,
+ Value* vp);
+
+ static const JSPropertySpec properties[];
+ static const JSFunctionSpec methods[];
+ static const JSFunctionSpec staticMethods[];
+ static const ClassSpec classSpec_;
+};
+
+} /* namespace js */
+
+#endif /* builtin_Symbol_h */