From 55ca9c847c2a183e1382a2b7f3f7bcfe7cdc852f Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <doxygen@gmail.com>
Date: Tue, 24 Nov 2020 22:10:11 +0100
Subject: Fixed potential crash when cleaning up

---
 src/definition.cpp   | 12 ++++++------
 src/definitionimpl.h |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/definition.cpp b/src/definition.cpp
index 8b6e6fa..615506f 100644
--- a/src/definition.cpp
+++ b/src/definition.cpp
@@ -233,9 +233,9 @@ static void addToMap(const char *name,Definition *d)
   }
 }
 
-static void removeFromMap(Definition *d)
+static void removeFromMap(const char *name,Definition *d)
 {
-  Doxygen::symbolMap.remove(d->_symbolName(),d);
+  Doxygen::symbolMap.remove(name,d);
 }
 
 DefinitionImpl::DefinitionImpl(Definition *def,
@@ -301,7 +301,7 @@ DefinitionImpl::~DefinitionImpl()
 {
   if (m_impl->isSymbol)
   {
-    removeFromMap(m_impl->def);
+    removeFromMap(m_impl->symbolName,m_impl->def);
   }
   if (m_impl)
   {
@@ -2179,7 +2179,7 @@ void DefinitionImpl::writeSummaryLinks(OutputList &) const
 //---------------------------------------------------------------------------------
 
 DefinitionAliasImpl::DefinitionAliasImpl(Definition *def,const Definition *alias)
-      : m_def(def), m_alias(alias)
+      : m_def(def), m_symbolName(alias->_symbolName())
 {
 }
 
@@ -2190,12 +2190,12 @@ DefinitionAliasImpl::~DefinitionAliasImpl()
 void DefinitionAliasImpl::init()
 {
   //printf("%s::addToMap(%s)\n",qPrint(name()),qPrint(alias->name()));
-  addToMap(m_alias->name(),m_def);
+  addToMap(m_symbolName,m_def);
 }
 
 void DefinitionAliasImpl::deinit()
 {
-  removeFromMap(m_def);
+  removeFromMap(m_symbolName,m_def);
 }
 
 //---------------------------------------------------------------------------------
diff --git a/src/definitionimpl.h b/src/definitionimpl.h
index 0c2f713..710611e 100644
--- a/src/definitionimpl.h
+++ b/src/definitionimpl.h
@@ -298,7 +298,7 @@ class DefinitionAliasImpl
     void deinit();
   private:
     Definition *m_def;
-    const Definition *m_alias;
+    QCString m_symbolName;
 };
 
 template<class Base>
-- 
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