From 74dcc10b556cc4d1088a2496f7e93f8a8040447e Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Mon, 17 Aug 2020 03:24:56 +0200
Subject: [PATCH] Remove dead code in xinclude.c

'doc' is checked for NULL in xmlXIncludeLoadDoc, so several code
paths can be eliminated.
---
 xinclude.c | 43 ++++++-------------------------------------
 1 file changed, 6 insertions(+), 37 deletions(-)

diff --git a/xinclude.c b/xinclude.c
index 2423a93..36bdfae 100644
--- a/xinclude.c
+++ b/xinclude.c
@@ -59,7 +59,6 @@ struct _xmlXIncludeRef {
     xmlNodePtr            inc; /* the included copy */
     int                   xml; /* xml or txt */
     int                 count; /* how many refs use that specific doc */
-    xmlXPathObjectPtr    xptr; /* the xpointer if needed */
     int		         skip; /* skip in case of errors */
     int	             fallback; /* fallback was loaded */
 };
@@ -211,8 +210,6 @@ xmlXIncludeFreeRef(xmlXIncludeRefPtr ref) {
 	xmlFree(ref->URI);
     if (ref->fragment != NULL)
 	xmlFree(ref->fragment);
-    if (ref->xptr != NULL)
-	xmlXPathFreeObject(ref->xptr);
     xmlFree(ref);
 }
 
@@ -1557,15 +1554,8 @@ loaded:
 	/*
 	 * Add the top children list as the replacement copy.
 	 */
-	if (doc == NULL)
-	{
-	    /* Hopefully a DTD declaration won't be copied from
-	     * the same document */
-	    ctxt->incTab[nr]->inc = xmlCopyNodeList(ctxt->doc->children);
-	} else {
-	    ctxt->incTab[nr]->inc = xmlXIncludeCopyNodeList(ctxt, ctxt->doc,
-		                                       doc, doc->children);
-	}
+	ctxt->incTab[nr]->inc = xmlXIncludeCopyNodeList(ctxt, ctxt->doc,
+		                                        doc, doc->children);
     }
 #ifdef LIBXML_XPTR_ENABLED
     else {
@@ -1577,12 +1567,7 @@ loaded:
 	xmlXPathContextPtr xptrctxt;
 	xmlNodeSetPtr set;
 
-	if (doc == NULL) {
-	    xptrctxt = xmlXPtrNewContext(ctxt->doc, ctxt->incTab[nr]->ref,
-		                         NULL);
-	} else {
-	    xptrctxt = xmlXPtrNewContext(doc, NULL, NULL);
-	}
+	xptrctxt = xmlXPtrNewContext(doc, NULL, NULL);
 	if (xptrctxt == NULL) {
 	    xmlXIncludeErr(ctxt, ctxt->incTab[nr]->ref,
 	                   XML_XINCLUDE_XPTR_FAILED,
@@ -1686,14 +1671,9 @@ loaded:
 		}
 	    }
 	}
-	if (doc == NULL) {
-	    ctxt->incTab[nr]->xptr = xptr;
-	    ctxt->incTab[nr]->inc = NULL;
-	} else {
-	    ctxt->incTab[nr]->inc =
-		xmlXIncludeCopyXPointer(ctxt, ctxt->doc, doc, xptr);
-	    xmlXPathFreeObject(xptr);
-	}
+        ctxt->incTab[nr]->inc =
+            xmlXIncludeCopyXPointer(ctxt, ctxt->doc, doc, xptr);
+        xmlXPathFreeObject(xptr);
 	xmlXPathFreeContext(xptrctxt);
 	xmlFree(fragment);
     }
@@ -2212,17 +2192,6 @@ xmlXIncludeIncludeNode(xmlXIncludeCtxtPtr ctxt, int nr) {
     if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL))
 	return(-1);
 
-    /*
-     * If we stored an XPointer a late computation may be needed
-     */
-    if ((ctxt->incTab[nr]->inc == NULL) &&
-	(ctxt->incTab[nr]->xptr != NULL)) {
-	ctxt->incTab[nr]->inc =
-	    xmlXIncludeCopyXPointer(ctxt, ctxt->doc, ctxt->doc,
-		                    ctxt->incTab[nr]->xptr);
-	xmlXPathFreeObject(ctxt->incTab[nr]->xptr);
-	ctxt->incTab[nr]->xptr = NULL;
-    }
     list = ctxt->incTab[nr]->inc;
     ctxt->incTab[nr]->inc = NULL;
 
-- 
1.8.3.1