Introduce the notion of "runtime support values"

A runtime support value is a ValueObject whose only purpose is to support some language runtime's operation, but it does not directly provide any user-visible benefit
As such, unless the user is working on the runtime support, it is mostly safe for them not to see such a value when debugging

It is a language runtime's job to check whether a ValueObject is a support value, and that - in conjunction with a target setting - is used by frame variable and target variable
SBFrame::GetVariables gets a new overload with yet another flag to dictate whether to return those support values to the caller - that which defaults to the setting's value

rdar://problem/15539930

llvm-svn: 228791

1 files changed, 15 insertions, 0 deletions

diff --git a/lldb/source/Core/ValueObject.cpp b/lldb/source/Core/ValueObject.cpp
index b72e5c3f18c..ebbcb8ec408 100644
--- a/lldb/source/Core/ValueObject.cpp
+++ b/lldb/source/Core/ValueObject.cpp
@@ -2064,6 +2064,21 @@ ValueObject::IsPossibleDynamicType ()
 }
 
 bool
+ValueObject::IsRuntimeSupportValue ()
+{
+    Process *process(GetProcessSP().get());
+    if (process)
+    {
+        LanguageRuntime *runtime = process->GetLanguageRuntime(GetObjectRuntimeLanguage());
+        if (!runtime)
+            runtime = process->GetObjCLanguageRuntime();
+        if (runtime)
+            return runtime->IsRuntimeSupportValue(*this);
+    }
+    return false;
+}
+
+bool
 ValueObject::IsObjCNil ()
 {
     const uint32_t mask = eTypeIsObjC | eTypeIsPointer;