Index: runtime/vm/dart_api_impl.cc |
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc |
index 69ef30066df019db9ed42f14bb6e38f1bdba78f4..c4e4f54736d9a9aae394798444156e813e081d70 100644 |
--- a/runtime/vm/dart_api_impl.cc |
+++ b/runtime/vm/dart_api_impl.cc |
@@ -5112,6 +5112,11 @@ RawString* Api::GetEnvironmentValue(Thread* thread, const String& name) { |
if (Symbols::DartIsVM().Equals(name)) { |
return Symbols::True().raw(); |
} |
+ if (FLAG_causal_async_stacks) { |
+ if (Symbols::DartDeveloperCausalAsyncStacks().Equals(name)) { |
+ return Symbols::True().raw(); |
+ } |
+ } |
} |
return result.raw(); |
} |