loplugin:unnecessaryvirtual

Change-Id: If25d9307efda5f57b0f80a0cf5c2c5cab6a752d6
Reviewed-on: https://gerrit.libreoffice.org/27981
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

compilerplugins/clang/store/unnecessaryvirtual.py

@@ -1,28 +0,0 @@
-#!/usr/bin/python
-
-import sys
-import io
-
-definitionSet = set()
-overridingSet = set()
-
-
-with io.open(sys.argv[1], "rb", buffering=1024*1024) as txt:
-    for line in txt:
-    
-        if line.startswith("definition:\t"):
-            idx1 = line.find("\t")
-            clazzName = line[idx1+1 : len(line)-1]
-            definitionSet.add(clazzName)
-            
-        elif line.startswith("overriding:\t"):
-            idx1 = line.find("\t")
-            clazzName = line[idx1+1 : len(line)-1]
-            overridingSet.add(clazzName)
-            
-for clazz in sorted(definitionSet - overridingSet):
-    print clazz
-
-# add an empty line at the end to make it easier for the removevirtuals plugin to mmap() the output file 
-print
-

compilerplugins/clang/unnecessaryvirtual.cxx

@@ -22,7 +22,7 @@ Then we will post-process the 2 lists and find the set of virtual methods which
 The process goes something like this:
   $ make check
   $ make FORCE_COMPILE_ALL=1 COMPILER_PLUGIN_TOOL='unnecessaryvirtual' check
-  $ ./compilerplugins/clang/unnecessaryvirtual.py unnecessaryvirtual.log > result.txt
+  $ ./compilerplugins/clang/unnecessaryvirtual.py
   $ for dir in *; do make FORCE_COMPILE_ALL=1 UPDATE_FILES=$dir COMPILER_PLUGIN_TOOL='removevirtuals' $dir; done
 
 Note that the actual process may involve a fair amount of undoing, hand editing, and general messing around
@@ -56,7 +56,7 @@ public:
         for (const std::string & s : overridingSet)
             output += "overriding:\t" + s + "\n";
         ofstream myfile;
-        myfile.open( SRCDIR "/unnecessaryvirtual.log", ios::app | ios::out);
+        myfile.open( SRCDIR "/loplugin.unnecessaryvirtual.log", ios::app | ios::out);
         myfile << output;
         myfile.close();
     }

compilerplugins/clang/unnecessaryvirtual.py

@@ -0,0 +1,37 @@
+#!/usr/bin/python
+
+import sys
+import io
+
+definitionSet = set()
+overridingSet = set()
+
+
+with io.open("loplugin.unnecessaryvirtual.log", "rb", buffering=1024*1024) as txt:
+    for line in txt:
+    
+        if line.startswith("definition:\t"):
+            idx1 = line.find("\t")
+            clazzName = line[idx1+1 : len(line)-1]
+            definitionSet.add(clazzName)
+            
+        elif line.startswith("overriding:\t"):
+            idx1 = line.find("\t")
+            clazzName = line[idx1+1 : len(line)-1]
+            overridingSet.add(clazzName)
+            
+with open("loplugin.unnecessaryvirtual.report", "wt") as f:
+    for clazz in sorted(definitionSet - overridingSet):
+        # external code
+        if clazz.startswith("std::"): continue
+        if clazz.startswith("icu_"): continue
+        if clazz.startswith("__cxx"): continue
+        # windows-specific stuff
+        if clazz.startswith("canvas::"): continue
+        if clazz.startswith("psp::PrinterInfoManager"): continue
+        # some test magic
+        if clazz.startswith("apitest::"): continue
+        f.write(clazz + "\n")
+    # add an empty line at the end to make it easier for the removevirtuals plugin to mmap() the output file 
+    f.write("\n")
+