gin/gin_features.cc

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "gin/gin_features.h"

namespace features {

// Enables optimization of JavaScript in V8.
const base::Feature kV8OptimizeJavascript{"V8OptimizeJavascript",
                                          base::FEATURE_ENABLED_BY_DEFAULT};

// Enables flushing of JS bytecode in V8.
const base::Feature kV8FlushBytecode{"V8FlushBytecode",
                                     base::FEATURE_ENABLED_BY_DEFAULT};

// Enables finalizing streaming JS compilations on a background thread.
const base::Feature kV8OffThreadFinalization{"V8OffThreadFinalization",
                                             base::FEATURE_DISABLED_BY_DEFAULT};

// Enables lazy feedback allocation in V8.
const base::Feature kV8LazyFeedbackAllocation{"V8LazyFeedbackAllocation",
                                              base::FEATURE_ENABLED_BY_DEFAULT};

// Enables concurrent inlining in TurboFan.
const base::Feature kV8ConcurrentInlining{"V8ConcurrentInlining",
                                          base::FEATURE_DISABLED_BY_DEFAULT};

// Enables per-context marking worklists in V8 GC.
const base::Feature kV8PerContextMarkingWorklist{
    "V8PerContextMarkingWorklist", base::FEATURE_DISABLED_BY_DEFAULT};

// Enables flushing of the instruction cache for the embedded blob.
const base::Feature kV8FlushEmbeddedBlobICache{
    "V8FlushEmbeddedBlobICache", base::FEATURE_DISABLED_BY_DEFAULT};

// Enables reduced number of concurrent marking tasks.
const base::Feature kV8ReduceConcurrentMarkingTasks{
    "V8ReduceConcurrentMarkingTasks", base::FEATURE_DISABLED_BY_DEFAULT};

// Disables reclaiming of unmodified wrappers objects.
const base::Feature kV8NoReclaimUnmodifiedWrappers{
    "V8NoReclaimUnmodifiedWrappers", base::FEATURE_DISABLED_BY_DEFAULT};

// Enables concurrent heap access and allocation.
const base::Feature kV8LocalHeaps{"V8LocalHeaps",
                                  base::FEATURE_ENABLED_BY_DEFAULT};

// Enables TurboFan's direct heap access.
const base::Feature kV8TurboDirectHeapAccess{"V8TurboDirectHeapAccess",
                                             base::FEATURE_ENABLED_BY_DEFAULT};

// Enables fallback to a breadth-first regexp engine on excessive backtracking.
const base::Feature kV8ExperimentalRegexpEngine{
    "V8ExperimentalRegexpEngine", base::FEATURE_ENABLED_BY_DEFAULT};

// Enables fast API calls in TurboFan.
const base::Feature kV8TurboFastApiCalls{"V8TurboFastApiCalls",
                                         base::FEATURE_DISABLED_BY_DEFAULT};

}  // namespace features