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-rwxr-xr-xcompilerplugins/clang/unusedvarsglobal.py151
1 files changed, 151 insertions, 0 deletions
diff --git a/compilerplugins/clang/unusedvarsglobal.py b/compilerplugins/clang/unusedvarsglobal.py
new file mode 100755
index 000000000..da268794b
--- /dev/null
+++ b/compilerplugins/clang/unusedvarsglobal.py
@@ -0,0 +1,151 @@
+#!/usr/bin/python2
+
+import sys
+import re
+import io
+
+definitionSet = set()
+readFromSet = set()
+writeToSet = set()
+defToTypeMap = dict()
+
+def parseFieldInfo( tokens ):
+ return (tokens[1].strip(), tokens[2].strip())
+
+with io.open("workdir/loplugin.unusedvarsglobal.log", "rb", buffering=1024*1024) as txt:
+ for line in txt:
+ try:
+ tokens = line.strip().split("\t")
+ if tokens[0] == "definition:":
+ srcLoc = tokens[3]
+ # ignore external source code
+ if (srcLoc.startswith("external/")):
+ continue
+ # ignore build folder
+ if (srcLoc.startswith("workdir/")):
+ continue
+ varname = tokens[1].strip()
+ vartype = tokens[2].strip()
+ if vartype.startswith("const "):
+ vartype = vartype[6:]
+ if vartype.startswith("class "):
+ vartype = vartype[6:]
+ if vartype.startswith("struct "):
+ vartype = vartype[7:]
+ if vartype.startswith("::"):
+ vartype = vartype[2:]
+ fieldInfo = (srcLoc, varname)
+ definitionSet.add(fieldInfo)
+ defToTypeMap[fieldInfo] = vartype
+ elif tokens[0] == "read:":
+ if len(tokens) == 3:
+ readFromSet.add(parseFieldInfo(tokens))
+ elif tokens[0] == "write:":
+ if len(tokens) == 3:
+ writeToSet.add(parseFieldInfo(tokens))
+ else:
+ print( "unknown line: " + line)
+ except IndexError:
+ print "problem with line " + line.strip()
+ raise
+
+definitionSet2 = set()
+for d in definitionSet:
+ varname = d[1]
+ vartype = defToTypeMap[d]
+ if len(varname) == 0:
+ continue
+ if varname.startswith("autoRegister"): # auto-generated CPPUNIT stuff
+ continue
+ if vartype in ["css::uno::ContextLayer", "SolarMutexGuard", "SolarMutexReleaser", "OpenGLZone"]:
+ continue
+ if vartype in ["PreDefaultWinNoOpenGLZone", "SchedulerGuard", "SkiaZone", "OpenGLVCLContextZone"]:
+ continue
+ if vartype in ["SwXDispatchProviderInterceptor::DispatchMutexLock_Impl", "SfxObjectShellLock", "OpenCLZone"]:
+ continue
+ if vartype in ["OpenCLInitialZone", "pyuno::PyThreadDetach", "SortRefUpdateSetter", "oglcanvas::TransformationPreserver"]:
+ continue
+ if vartype in ["StackHack", "osl::MutexGuard", "accessibility::SolarMethodGuard"]:
+ continue
+ if vartype in ["osl::ClearableMutexGuard", "comphelper::OExternalLockGuard", "osl::Guard< ::osl::Mutex>"]:
+ continue
+ if vartype in ["comphelper::OContextEntryGuard", "Guard<class osl::Mutex>", "basic::LibraryContainerMethodGuard"]:
+ continue
+ if vartype in ["canvas::CanvasBase::MutexType"]:
+ continue
+ definitionSet2.add(d)
+
+# Calculate untouched
+untouchedSet = set()
+for d in definitionSet2:
+ if d in readFromSet or d in writeToSet:
+ continue
+ varname = d[1]
+ if len(varname) == 0:
+ continue
+ untouchedSet.add(d)
+
+writeonlySet = set()
+for d in definitionSet2:
+ if d in readFromSet or d in untouchedSet:
+ continue
+ varname = d[1]
+ vartype = defToTypeMap[d]
+ if "Alive" in varname:
+ continue
+ if "Keep" in varname:
+ continue
+ if vartype.endswith(" &"):
+ continue
+ writeonlySet.add(d)
+
+readonlySet = set()
+for d in definitionSet2:
+ if d in writeToSet or d in untouchedSet:
+ continue
+ varname = d[1]
+ vartype = defToTypeMap[d]
+ if "Dummy" in varname:
+ continue
+ if "Empty" in varname:
+ continue
+ if varname in ["aOldValue", "aNewValue"]:
+ continue
+ if "Exception" in vartype and vartype.endswith(" &"):
+ continue
+ if "exception" in vartype and vartype.endswith(" &"):
+ continue
+ # TODO for now, focus on the simple stuff
+ if not (vartype in ["rtl::OUString", "Bool"]):
+ continue
+ readonlySet.add(d)
+
+# 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[0]) + [v[1]]
+
+# sort results by name and line number
+tmp1list = sorted(untouchedSet, key=lambda v: v_sort_key(v))
+tmp2list = sorted(writeonlySet, key=lambda v: v_sort_key(v))
+tmp3list = sorted(readonlySet, key=lambda v: v_sort_key(v))
+
+# print out the results
+with open("compilerplugins/clang/unusedvarsglobal.untouched.results", "wt") as f:
+ for t in tmp1list:
+ f.write( t[0] + "\n" )
+ f.write( " " + defToTypeMap[t] + " " + t[1] + "\n" )
+with open("compilerplugins/clang/unusedvarsglobal.writeonly.results", "wt") as f:
+ for t in tmp2list:
+ f.write( t[0] + "\n" )
+ f.write( " " + defToTypeMap[t] + " " + t[1] + "\n" )
+with open("compilerplugins/clang/unusedvarsglobal.readonly.results", "wt") as f:
+ for t in tmp3list:
+ f.write( t[0] + "\n" )
+ f.write( " " + defToTypeMap[t] + " " + t[1] + "\n" )
+
+