From 43c8b19546ae646630898a7b0fe0a517633410de Mon Sep 17 00:00:00 2001 From: Adrian Prantl Date: Fri, 16 Aug 2019 23:47:57 +0000 Subject: [PATCH] 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 llvm-svn: 369175 --- llvm/utils/lldbDataFormatters.py | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/llvm/utils/lldbDataFormatters.py b/llvm/utils/lldbDataFormatters.py index de0710a..74f3222 100644 --- a/llvm/utils/lldbDataFormatters.py +++ b/llvm/utils/lldbDataFormatters.py @@ -21,6 +21,12 @@ def __lldb_init_module(debugger, internal_dict): 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 @@ def SmallStringSummaryProvider(valobj, internal_dict): 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 "" -- 2.7.4