mozjs_sys 0.67.1

/* -*- 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 vm_Probes_inl_h
#define vm_Probes_inl_h

#include "vm/Probes.h"

#include "vm/JSContext.h"

#include "vm/JSScript-inl.h"

namespace js {

/*
 * Many probe handlers are implemented inline for minimal performance impact,
 * especially important when no backends are enabled.
 */

inline bool probes::CallTrackingActive(JSContext* cx) {
#ifdef INCLUDE_MOZILLA_DTRACE
  if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED() ||
      JAVASCRIPT_FUNCTION_RETURN_ENABLED()) {
    return true;
  }
#endif
  return false;
}

inline bool probes::EnterScript(JSContext* cx, JSScript* script,
                                JSFunction* maybeFun, InterpreterFrame* fp) {
#ifdef INCLUDE_MOZILLA_DTRACE
  if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED()) {
    DTraceEnterJSFun(cx, maybeFun, script);
  }
#endif

  JSRuntime* rt = cx->runtime();
  if (rt->geckoProfiler().enabled()) {
    if (!cx->geckoProfiler().enter(cx, script, maybeFun)) {
      return false;
    }
    MOZ_ASSERT_IF(!fp->script()->isGenerator() && !fp->script()->isAsync(),
                  !fp->hasPushedGeckoProfilerFrame());
    fp->setPushedGeckoProfilerFrame();
  }

  if (script->trackRecordReplayProgress()) {
    mozilla::recordreplay::AdvanceExecutionProgressCounter();
  }

  return true;
}

inline void probes::ExitScript(JSContext* cx, JSScript* script,
                               JSFunction* maybeFun, bool popProfilerFrame) {
#ifdef INCLUDE_MOZILLA_DTRACE
  if (JAVASCRIPT_FUNCTION_RETURN_ENABLED()) {
    DTraceExitJSFun(cx, maybeFun, script);
  }
#endif

  if (popProfilerFrame) {
    cx->geckoProfiler().exit(script, maybeFun);
  }
}

inline bool probes::StartExecution(JSScript* script) {
  bool ok = true;

#ifdef INCLUDE_MOZILLA_DTRACE
  if (JAVASCRIPT_EXECUTE_START_ENABLED()) {
    JAVASCRIPT_EXECUTE_START(
        (script->filename() ? (char*)script->filename() : nullName),
        script->lineno());
  }
#endif

  return ok;
}

inline bool probes::StopExecution(JSScript* script) {
  bool ok = true;

#ifdef INCLUDE_MOZILLA_DTRACE
  if (JAVASCRIPT_EXECUTE_DONE_ENABLED()) {
    JAVASCRIPT_EXECUTE_DONE(
        (script->filename() ? (char*)script->filename() : nullName),
        script->lineno());
  }
#endif

  return ok;
}

} /* namespace js */

#endif /* vm_Probes_inl_h */