Add an option to suppress the persistent result variable when running EvaluateExpression

from Python.  If you don't need to refer to the result in another expression, there's no
need to bloat the persistent variable table with them since you already have the result
SBValue to work with.

<rdar://problem/17963645>

llvm-svn: 215244

3 files changed, 28 insertions, 0 deletions

diff --git a/lldb/include/lldb/API/SBExpressionOptions.h b/lldb/include/lldb/API/SBExpressionOptions.h
index 3241c1571cf..c3592880c46 100644
--- a/lldb/include/lldb/API/SBExpressionOptions.h
+++ b/lldb/include/lldb/API/SBExpressionOptions.h
@@ -98,6 +98,12 @@ public:
     
     void
     SetGenerateDebugInfo (bool b = true);
+    
+    bool
+    GetSuppressPersistentResult ();
+    
+    void
+    SetSuppressPersistentResult (bool b = false);
 
 protected:
 
diff --git a/lldb/scripts/Python/interface/SBExpressionOptions.i b/lldb/scripts/Python/interface/SBExpressionOptions.i
index d172f35c638..6ee3e3b64fa 100644
--- a/lldb/scripts/Python/interface/SBExpressionOptions.i
+++ b/lldb/scripts/Python/interface/SBExpressionOptions.i
@@ -102,6 +102,15 @@ public:
     %feature("docstring", "Sets whether to generate debug information for the expression and also controls if a SBModule is generated.") SetGenerateDebugInfo;
     void
     SetGenerateDebugInfo (bool b = true);
+    
+    bool
+    GetSuppressPersistentResult ();
+    
+    %feature("docstring", "Sets whether to produce a persistent result that can be used in future expressions.") SetSuppressPersistentResult;
+    void
+    SetSuppressPersistentResult (bool b = false);
+
+
 
 protected:
 
diff --git a/lldb/source/API/SBExpressionOptions.cpp b/lldb/source/API/SBExpressionOptions.cpp
index 0a55b614c7c..448ff4cf6dd 100644
--- a/lldb/source/API/SBExpressionOptions.cpp
+++ b/lldb/source/API/SBExpressionOptions.cpp
@@ -173,6 +173,19 @@ SBExpressionOptions::SetGenerateDebugInfo (bool b)
     return m_opaque_ap->SetGenerateDebugInfo(b);
 }
 
+bool
+SBExpressionOptions::GetSuppressPersistentResult ()
+{
+    return m_opaque_ap->GetResultIsInternal ();
+}
+
+void
+SBExpressionOptions::SetSuppressPersistentResult (bool b)
+{
+    return m_opaque_ap->SetResultIsInternal (b);
+}
+
+
 EvaluateExpressionOptions *
 SBExpressionOptions::get() const
 {