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-rwxr-xr-xcompilerplugins/clang/virtualdown.py54
1 files changed, 54 insertions, 0 deletions
diff --git a/compilerplugins/clang/virtualdown.py b/compilerplugins/clang/virtualdown.py
new file mode 100755
index 0000000000..f71ec576ad
--- /dev/null
+++ b/compilerplugins/clang/virtualdown.py
@@ -0,0 +1,54 @@
+#!/usr/bin/python
+
+import io
+import re
+
+definitionSet = set()
+definitionToSourceLocationMap = dict()
+callSet = set()
+
+
+with io.open("workdir/loplugin.virtualdown.log", "rb", buffering=1024*1024) as txt:
+ for line in txt:
+ tokens = line.strip().split("\t")
+ if tokens[0] == "definition:":
+ fullMethodName = tokens[1]
+ sourceLocation = tokens[2]
+ definitionSet.add(fullMethodName)
+ definitionToSourceLocationMap[fullMethodName] = sourceLocation
+ elif tokens[0] == "call:":
+ fullMethodName = tokens[1]
+ callSet.add(fullMethodName)
+ else:
+ print( "unknown line: " + line)
+
+unnecessaryVirtualSet = set()
+
+for clazz in (definitionSet - callSet):
+# if clazz.startswith("canvas::"): continue
+# if clazz == "basegfx::unotools::UnoPolyPolygon::void-modifying()const": continue
+ # ignore external code
+ if definitionToSourceLocationMap[clazz].startswith("external/"): continue
+
+ unnecessaryVirtualSet.add((clazz,definitionToSourceLocationMap[clazz] ))
+
+
+# sort the results using a "natural order" so sequences like [item1,item2,item10] sort nicely
+def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
+ return [int(text) if text.isdigit() else text.lower()
+ for text in re.split(_nsre, s)]
+# sort by both the source-line and the datatype, so the output file ordering is stable
+# when we have multiple items on the same source line
+def v_sort_key(v):
+ return natural_sort_key(v[1]) + [v[0]]
+
+# sort results by name and line number
+tmp1list = sorted(unnecessaryVirtualSet, key=lambda v: v_sort_key(v))
+
+with open("compilerplugins/clang/virtualdown.results", "wt") as f:
+ for t in tmp1list:
+ f.write( t[1] + "\n" )
+ f.write( " " + t[0] + "\n" )
+ # add an empty line at the end to make it easier for the removevirtuals plugin to mmap() the output file
+ f.write("\n")
+