[ClangDataFormat.py] Add summary for QualType.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168117 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/ClangDataFormat.py b/utils/ClangDataFormat.py
index 23aaba2..a80f0b5 100644
--- a/utils/ClangDataFormat.py
+++ b/utils/ClangDataFormat.py
@@ -23,11 +23,15 @@
 
 def __lldb_init_module(debugger, internal_dict):
 	debugger.HandleCommand("type summary add -F ClangDataFormat.SourceLocation_summary clang::SourceLocation")
+	debugger.HandleCommand("type summary add -F ClangDataFormat.QualType_summary clang::QualType")
 	debugger.HandleCommand("type summary add -F ClangDataFormat.StringRef_summary llvm::StringRef")
 
 def SourceLocation_summary(srcloc, internal_dict):
 	return SourceLocation(srcloc).summary()
 
+def QualType_summary(qualty, internal_dict):
+	return QualType(qualty).summary()
+
 def StringRef_summary(strref, internal_dict):
 	return StringRef(strref).summary()
 
@@ -55,10 +59,23 @@
 	def summary(self):
 		if self.isInvalid():
 			return "<invalid loc>"
-		desc = "(offset: %d, %s)" % (self.offset(), "macro" if self.isMacro() else "file")
 		srcmgr_path = findObjectExpressionPath("clang::SourceManager", lldb.frame)
 		if srcmgr_path:
-			desc = "%s (offset: %d, %s, %s)" % (self.getPrint(srcmgr_path), self.offset(), "macro" if self.isMacro() else "file", "local" if self.isLocal(srcmgr_path) else "loaded")
+			return "%s (offset: %d, %s, %s)" % (self.getPrint(srcmgr_path), self.offset(), "macro" if self.isMacro() else "file", "local" if self.isLocal(srcmgr_path) else "loaded")
+		return "(offset: %d, %s)" % (self.offset(), "macro" if self.isMacro() else "file")
+
+class QualType(object):
+	def __init__(self, qualty):
+		self.qualty = qualty
+
+	def getAsString(self):
+		std_str = getValueFromExpression(self.qualty, ".getAsString()")
+		return std_str.GetSummary()
+
+	def summary(self):
+		desc = self.getAsString()
+		if desc == '"NULL TYPE"':
+			return "<NULL TYPE>"
 		return desc
 
 class StringRef(object):