From bdd47a863a9ca7bb5a20836936765513b9cf68f6 Mon Sep 17 00:00:00 2001
From: Paul Duffin <paulduffin@google.com>
Date: Thu, 27 Feb 2020 13:29:56 +0000
Subject: [PATCH] Avoid invoking sdk member to add empty list of dependencies

Simplifies debugging sdk membership code when it is only called if an
appropriate member is present.

Bug: 153306490
Test: m nothing
Merged-In: I32bc93e0484c829bdbd6b050822249feb6404f89
Change-Id: I32bc93e0484c829bdbd6b050822249feb6404f89
---
 sdk/sdk.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sdk/sdk.go b/sdk/sdk.go
index 4976dc030..c194ac1f8 100644
--- a/sdk/sdk.go
+++ b/sdk/sdk.go
@@ -323,8 +323,10 @@ func memberMutator(mctx android.BottomUpMutatorContext) {
 		if s.Enabled() {
 			for _, memberListProperty := range s.memberListProperties() {
 				names := memberListProperty.getter(s.dynamicMemberTypeListProperties)
-				tag := memberListProperty.dependencyTag
-				memberListProperty.memberType.AddDependencies(mctx, tag, names)
+				if len(names) > 0 {
+					tag := memberListProperty.dependencyTag
+					memberListProperty.memberType.AddDependencies(mctx, tag, names)
+				}
 			}
 		}
 	}