async_hooks: use hasHooks function internally

PR-URL: #32656
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

lib/internal/async_hooks.js

@@ -316,27 +316,31 @@ function defaultTriggerAsyncIdScope(triggerAsyncId, block, ...args) {
  }
 }
 
+function hasHooks(key) {
+ return async_hook_fields[key] > 0;
+}
+
 function enabledHooksExist() {
- return async_hook_fields[kCheck] > 0;
+ return hasHooks(kCheck);
 }
 
 function initHooksExist() {
- return async_hook_fields[kInit] > 0;
+ return hasHooks(kInit);
 }
 
 function afterHooksExist() {
- return async_hook_fields[kAfter] > 0;
+ return hasHooks(kAfter);
 }
 
 function destroyHooksExist() {
- return async_hook_fields[kDestroy] > 0;
+ return hasHooks(kDestroy);
 }
 
 
 function emitInitScript(asyncId, type, triggerAsyncId, resource) {
  // Short circuit all checks for the common case. Which is that no hooks have
  // been set. Do this to remove performance impact for embedders (and core).
- if (async_hook_fields[kInit] === 0)
+ if (!hasHooks(kInit))
  return;
 
  if (triggerAsyncId === null) {
@@ -350,13 +354,13 @@ function emitInitScript(asyncId, type, triggerAsyncId, resource) {
 function emitBeforeScript(asyncId, triggerAsyncId, resource) {
  pushAsyncContext(asyncId, triggerAsyncId, resource);
 
- if (async_hook_fields[kBefore] > 0)
+ if (hasHooks(kBefore))
  emitBeforeNative(asyncId);
 }
 
 
 function emitAfterScript(asyncId) {
- if (async_hook_fields[kAfter] > 0)
+ if (hasHooks(kAfter))
  emitAfterNative(asyncId);
 
  popAsyncContext(asyncId);
@@ -365,7 +369,7 @@ function emitAfterScript(asyncId) {
 
 function emitDestroyScript(asyncId) {
  // Return early if there are no destroy callbacks, or invalid asyncId.
- if (async_hook_fields[kDestroy] === 0 || asyncId <= 0)
+ if (!hasHooks(kDestroy) || asyncId <= 0)
  return;
  async_wrap.queueDestroyAsyncId(asyncId);
 }
@@ -382,7 +386,7 @@ function clearAsyncIdStack() {
 
 
 function hasAsyncIdStack() {
- return async_hook_fields[kStackLength] > 0;
+ return hasHooks(kStackLength);
 }