Add m-esr52 at 52.6.0

1 files changed, 107 insertions, 0 deletions

diff --git a/js/src/proxy/ScriptedProxyHandler.h b/js/src/proxy/ScriptedProxyHandler.h
new file mode 100644
index 000000000..5e4c316c2
--- /dev/null
+++ b/js/src/proxy/ScriptedProxyHandler.h
@@ -0,0 +1,107 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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 proxy_ScriptedProxyHandler_h
+#define proxy_ScriptedProxyHandler_h
+
+#include "js/Proxy.h"
+
+namespace js {
+
+/* Derived class for all scripted proxy handlers. */
+class ScriptedProxyHandler : public BaseProxyHandler
+{
+  public:
+    constexpr ScriptedProxyHandler()
+      : BaseProxyHandler(&family)
+    { }
+
+    /* Standard internal methods. */
+    virtual bool getOwnPropertyDescriptor(JSContext* cx, HandleObject proxy, HandleId id,
+                                          MutableHandle<PropertyDescriptor> desc) const override;
+    virtual bool defineProperty(JSContext* cx, HandleObject proxy, HandleId id,
+                                Handle<PropertyDescriptor> desc,
+                                ObjectOpResult& result) const override;
+    virtual bool ownPropertyKeys(JSContext* cx, HandleObject proxy,
+                                 AutoIdVector& props) const override;
+    virtual bool delete_(JSContext* cx, HandleObject proxy, HandleId id,
+                         ObjectOpResult& result) const override;
+
+    virtual bool getPrototype(JSContext* cx, HandleObject proxy,
+                              MutableHandleObject protop) const override;
+    virtual bool setPrototype(JSContext* cx, HandleObject proxy, HandleObject proto,
+                              ObjectOpResult& result) const override;
+    /* Non-standard, but needed to correctly implement OrdinaryGetPrototypeOf. */
+    virtual bool getPrototypeIfOrdinary(JSContext* cx, HandleObject proxy, bool* isOrdinary,
+                                       MutableHandleObject protop) const override;
+    /* Non-standard, but needed to handle revoked proxies. */
+    virtual bool setImmutablePrototype(JSContext* cx, HandleObject proxy,
+                                       bool* succeeded) const override;
+
+    virtual bool preventExtensions(JSContext* cx, HandleObject proxy,
+                                   ObjectOpResult& result) const override;
+    virtual bool isExtensible(JSContext* cx, HandleObject proxy, bool* extensible) const override;
+
+    virtual bool has(JSContext* cx, HandleObject proxy, HandleId id, bool* bp) const override;
+    virtual bool get(JSContext* cx, HandleObject proxy, HandleValue receiver, HandleId id,
+                     MutableHandleValue vp) const override;
+    virtual bool set(JSContext* cx, HandleObject proxy, HandleId id, HandleValue v,
+                     HandleValue receiver, ObjectOpResult& result) const override;
+    virtual bool call(JSContext* cx, HandleObject proxy, const CallArgs& args) const override;
+    virtual bool construct(JSContext* cx, HandleObject proxy, const CallArgs& args) const override;
+
+    /* SpiderMonkey extensions. */
+    virtual bool hasOwn(JSContext* cx, HandleObject proxy, HandleId id, bool* bp) const override {
+        return BaseProxyHandler::hasOwn(cx, proxy, id, bp);
+    }
+
+    // A scripted proxy should not be treated as generic in most contexts.
+    virtual bool nativeCall(JSContext* cx, IsAcceptableThis test, NativeImpl impl,
+                            const CallArgs& args) const override;
+    virtual bool hasInstance(JSContext* cx, HandleObject proxy, MutableHandleValue v,
+                             bool* bp) const override;
+    virtual bool getBuiltinClass(JSContext* cx, HandleObject proxy, ESClass* cls) const override;
+    virtual bool isArray(JSContext* cx, HandleObject proxy,
+                         JS::IsArrayAnswer* answer) const override;
+    virtual const char* className(JSContext* cx, HandleObject proxy) const override;
+    virtual JSString* fun_toString(JSContext* cx, HandleObject proxy,
+                                   unsigned indent) const override;
+    virtual bool regexp_toShared(JSContext* cx, HandleObject proxy,
+                                 RegExpGuard* g) const override;
+    virtual bool boxedValue_unbox(JSContext* cx, HandleObject proxy,
+                                  MutableHandleValue vp) const override;
+
+    virtual bool isCallable(JSObject* obj) const override;
+    virtual bool isConstructor(JSObject* obj) const override;
+
+    virtual bool isScripted() const override { return true; }
+
+    static const char family;
+    static const ScriptedProxyHandler singleton;
+
+    // The "proxy extra" slot index in which the handler is stored. Revocable proxies need to set
+    // this at revocation time.
+    static const int HANDLER_EXTRA = 0;
+    static const int IS_CALLCONSTRUCT_EXTRA = 1;
+    // Bitmasks for the "call/construct" slot
+    static const int IS_CALLABLE    = 1 << 0;
+    static const int IS_CONSTRUCTOR = 1 << 1;
+    // The "function extended" slot index in which the revocation object is stored. Per spec, this
+    // is to be cleared during the first revocation.
+    static const int REVOKE_SLOT = 0;
+
+    static JSObject* handlerObject(const JSObject* proxy);
+};
+
+bool
+proxy(JSContext* cx, unsigned argc, Value* vp);
+
+bool
+proxy_revocable(JSContext* cx, unsigned argc, Value* vp);
+
+} /* namespace js */
+
+#endif /* proxy_ScriptedProxyHandler_h */