4ef31254d6
`ping_entry_t` is a `uint32_t`. It worked by accident so far, because by sheer luck the index was on the lower bits already. It won't be anymore when more pings are added and then breaks as we start reading from the middle of the lookup array. No new test, but `test_JOG.js` breaks in `test_enumerable_names` once a new ping is added. Differential Revision: https://phabricator.services.mozilla.com/D214271
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/glean/bindings/GleanPings.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/DOMJSClass.h"
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#include "mozilla/dom/GleanPingsBinding.h"
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#include "mozilla/glean/bindings/GleanJSPingsLookup.h"
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#include "mozilla/glean/bindings/jog/JOG.h"
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#include "mozilla/glean/bindings/Ping.h"
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#include "MainThreadUtils.h"
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#include "js/PropertyAndElement.h" // JS_DefineProperty
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namespace mozilla::glean {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(GleanPings)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(GleanPings)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(GleanPings)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(GleanPings)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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JSObject* GleanPings::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return dom::GleanPingsImpl_Binding::Wrap(aCx, this, aGivenProto);
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}
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// static
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bool GleanPings::DefineGleanPings(JSContext* aCx,
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JS::Handle<JSObject*> aGlobal) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(JS::GetClass(aGlobal)->flags & JSCLASS_DOM_GLOBAL,
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"Passed object is not a global object!");
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nsIGlobalObject* global = xpc::CurrentNativeGlobal(aCx);
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if (NS_WARN_IF(!global)) {
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return false;
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}
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JS::Rooted<JS::Value> gleanPings(aCx);
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js::AssertSameCompartment(aCx, aGlobal);
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auto impl = MakeRefPtr<GleanPings>();
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if (!dom::GetOrCreateDOMReflector(aCx, impl.get(), &gleanPings)) {
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return false;
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}
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return JS_DefineProperty(aCx, aGlobal, "GleanPings", gleanPings,
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JSPROP_ENUMERATE);
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}
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already_AddRefed<GleanPing> GleanPings::NamedGetter(const nsAString& aName,
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bool& aFound) {
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aFound = false;
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NS_ConvertUTF16toUTF8 pingName(aName);
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JOG::EnsureRuntimeMetricsRegistered();
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Maybe<uint32_t> pingId = JOG::GetPing(pingName);
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if (pingId.isNothing() && !JOG::AreRuntimeMetricsComprehensive()) {
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pingId = PingByNameLookup(pingName);
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}
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if (pingId.isNothing()) {
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aFound = false;
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return nullptr;
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}
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aFound = true;
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return MakeAndAddRef<GleanPing>(pingId.value());
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}
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bool GleanPings::NameIsEnumerable(const nsAString& aName) { return false; }
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void GleanPings::GetSupportedNames(nsTArray<nsString>& aNames) {
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JOG::GetPingNames(aNames);
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if (!JOG::AreRuntimeMetricsComprehensive()) {
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for (ping_entry_t entry : sPingByNameLookupEntries) {
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const char* pingName = GetPingName(entry);
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aNames.AppendElement()->AssignASCII(pingName);
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}
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}
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}
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} // namespace mozilla::glean
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