From 4bb1dde12c94be8438b6289de3ed6e7cbff3e831 Mon Sep 17 00:00:00 2001
From: dragonmacher <48328597+dragonmacher@users.noreply.github.com>
Date: Thu, 16 Sep 2021 19:57:00 -0400
Subject: [PATCH] GP-1302 - Function Call Graph - fixed stack trace due to
 improper action enablement

Closes #3327
---
 .../src/main/java/functioncalls/plugin/FcgProvider.java    | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Ghidra/Features/GraphFunctionCalls/src/main/java/functioncalls/plugin/FcgProvider.java b/Ghidra/Features/GraphFunctionCalls/src/main/java/functioncalls/plugin/FcgProvider.java
index 02516013f8..13b23b6bcb 100644
--- a/Ghidra/Features/GraphFunctionCalls/src/main/java/functioncalls/plugin/FcgProvider.java
+++ b/Ghidra/Features/GraphFunctionCalls/src/main/java/functioncalls/plugin/FcgProvider.java
@@ -1250,7 +1250,12 @@ public class FcgProvider
 		@Override
 		boolean isExpandable(FcgVertex vertex) {
 			Iterable<FcgVertex> vertices = getVerticesByLevel(vertex.getLevel());
-			return CollectionUtils.asStream(vertices).anyMatch(v -> v.canExpand());
+			if (direction == IN) {
+				return CollectionUtils.asStream(vertices)
+						.anyMatch(FcgVertex::canExpandIncomingReferences);
+			}
+			return CollectionUtils.asStream(vertices)
+					.anyMatch(FcgVertex::canExpandOutgoingReferences);
 		}
 	}
 }