From 0013718d59c7cdba2e9d4a129ee1146d012d60df Mon Sep 17 00:00:00 2001
From: Andy McFadden <fadden@fadden.com>
Date: Tue, 14 Jan 2020 17:56:55 -0800
Subject: [PATCH] Clear Lv xrefs at start of xref gen

Local variable cross-references were accumulating without bound on
every refresh.
---
 SourceGen/DisasmProject.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/SourceGen/DisasmProject.cs b/SourceGen/DisasmProject.cs
index 38ddc14..8c67a09 100644
--- a/SourceGen/DisasmProject.cs
+++ b/SourceGen/DisasmProject.cs
@@ -1442,6 +1442,12 @@ namespace SourceGen {
                     (sym as DefSymbol).Xrefs.Clear();
                 }
             }
+            // TODO: seriously, put the XrefSet ref somewhere else
+            foreach (LocalVariableTable lvt in LvTables.Values) {
+                for (int i = 0; i < lvt.Count; i++) {
+                    lvt[i].Xrefs.Clear();
+                }
+            }
 
             // Create a mapping from label (which must be unique) to file offset.  This
             // is different from UserLabels (which only has user-created labels, and is
@@ -1594,7 +1600,7 @@ namespace SourceGen {
         }
 
         /// <summary>
-        /// Adds an Xref entry to an XrefSet.  The XrefSet will be created if necessary.
+        /// Adds an Xref entry to an XrefSet in mXrefs.  The XrefSet will be created if necessary.
         /// </summary>
         /// <param name="offset">File offset for which cross-references are being noted.</param>
         /// <param name="xref">Cross reference to add to the set.</param>