src: introduce USE() for silencing compiler warnings

PR-URL: https://github.com/nodejs/node/pull/17333
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/src/async_wrap.cc b/src/async_wrap.cc
index 80543ecc66..3f77169321 100644
--- a/src/async_wrap.cc
+++ b/src/async_wrap.cc
@@ -169,8 +169,7 @@ void AsyncWrap::EmitPromiseResolve(Environment* env, double async_id) {
   Local<Value> async_id_value = Number::New(env->isolate(), async_id);
   Local<Function> fn = env->async_hooks_promise_resolve_function();
   FatalTryCatch try_catch(env);
-  fn->Call(env->context(), Undefined(env->isolate()), 1, &async_id_value)
-      .FromMaybe(Local<Value>());
+  USE(fn->Call(env->context(), Undefined(env->isolate()), 1, &async_id_value));
 }
 
 
@@ -198,8 +197,7 @@ void AsyncWrap::EmitBefore(Environment* env, double async_id) {
   Local<Value> async_id_value = Number::New(env->isolate(), async_id);
   Local<Function> fn = env->async_hooks_before_function();
   FatalTryCatch try_catch(env);
-  fn->Call(env->context(), Undefined(env->isolate()), 1, &async_id_value)
-      .FromMaybe(Local<Value>());
+  USE(fn->Call(env->context(), Undefined(env->isolate()), 1, &async_id_value));
 }
 
 
@@ -229,8 +227,7 @@ void AsyncWrap::EmitAfter(Environment* env, double async_id) {
   Local<Value> async_id_value = Number::New(env->isolate(), async_id);
   Local<Function> fn = env->async_hooks_after_function();
   FatalTryCatch try_catch(env);
-  fn->Call(env->context(), Undefined(env->isolate()), 1, &async_id_value)
-      .FromMaybe(Local<Value>());
+  USE(fn->Call(env->context(), Undefined(env->isolate()), 1, &async_id_value));
 }
 
 class PromiseWrap : public AsyncWrap {
@@ -731,8 +728,7 @@ void AsyncWrap::EmitAsyncInit(Environment* env,
   };
 
   FatalTryCatch try_catch(env);
-  init_fn->Call(env->context(), object, arraysize(argv), argv)
-      .FromMaybe(Local<Value>());
+  USE(init_fn->Call(env->context(), object, arraysize(argv), argv));
 }