Add LLDB dataformatters for llvm::StringRef and lldb_private::ConstString
These data formatters make the string value appear in Xcode's
variables view (and on the command line) without having to expand the
data structure.
Differential Revision: https://reviews.llvm.org/D66354
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369175 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/lldbDataFormatters.py b/utils/lldbDataFormatters.py
index de0710a..74f3222 100644
--- a/utils/lldbDataFormatters.py
+++ b/utils/lldbDataFormatters.py
@@ -21,6 +21,12 @@
debugger.HandleCommand('type summary add -w llvm '
'-F lldbDataFormatters.SmallStringSummaryProvider '
'-x "^llvm::SmallString<.+>$"')
+ debugger.HandleCommand('type summary add -w llvm '
+ '-F lldbDataFormatters.StringRefSummaryProvider '
+ '-x "^llvm::StringRef$"')
+ debugger.HandleCommand('type summary add -w llvm '
+ '-F lldbDataFormatters.ConstStringSummaryProvider '
+ '-x "^lldb_private::ConstString$"')
# Pretty printer for llvm::SmallVector/llvm::SmallVectorImpl
class SmallVectorSynthProvider:
@@ -115,3 +121,20 @@
res += valobj.GetChildAtIndex(i).GetValue().strip("'")
res += "\""
return res
+
+def StringRefSummaryProvider(valobj, internal_dict):
+ if valobj.GetNumChildren() == 2:
+ # StringRef's are also used to point at binary blobs in memory,
+ # so filter out suspiciously long strings.
+ max_length = 256
+ length = valobj.GetChildAtIndex(1).GetValueAsUnsigned(max_length)
+ if length == 0:
+ return "NULL"
+ if length < max_length:
+ return valobj.GetChildAtIndex(0).GetSummary()
+ return ""
+
+def ConstStringSummaryProvider(valobj, internal_dict):
+ if valobj.GetNumChildren() == 1:
+ return valobj.GetChildAtIndex(0).GetSummary()
+ return ""
