Author: spyffe
Date: Fri Oct 9 13:01:10 2015
New Revision: 249864
URL: http://llvm.org/viewvc/llvm-project?rev=249864&view=rev
Log:
Don't blindly use C for eLanguageTypeUnknown when getting a scratch TypeSystem.
Instead check what languages are supported for expressions; use C if available,
but otherwise pick one of the supported languages.
This can be overridden using the target settings.
<rdar://problem/22290878>
Modified:
lldb/trunk/source/Target/Target.cpp
Modified: lldb/trunk/source/Target/Target.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Target/Target.cpp?rev=249864&r1=249863&r2=249864&view=diff
==============================================================================
--- lldb/trunk/source/Target/Target.cpp (original)
+++ lldb/trunk/source/Target/Target.cpp Fri Oct 9 13:01:10 2015
@@ -1901,7 +1901,26 @@ Target::GetScratchTypeSystemForLanguage
if (language == eLanguageTypeMipsAssembler // GNU AS and LLVM use it for
all assembly code
|| language == eLanguageTypeUnknown)
{
- language = eLanguageTypeC;
+ std::set<lldb::LanguageType> languages_for_types;
+ std::set<lldb::LanguageType> languages_for_expressions;
+
+ Language::GetLanguagesSupportingTypeSystems(languages_for_types,
languages_for_expressions);
+
+ if (languages_for_expressions.count(eLanguageTypeC))
+ {
+ language = eLanguageTypeC; // LLDB's default. Override by setting
the target language.
+ }
+ else
+ {
+ if (languages_for_expressions.empty())
+ {
+ return nullptr;
+ }
+ else
+ {
+ language = *languages_for_expressions.begin();
+ }
+ }
}
return m_scratch_type_system_map.GetTypeSystemForLanguage(language, this,
create_on_demand);
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