[Lldb-commits] [lldb] r216483 - Add an API on ValueObject to generate a 'synthetic child' of base class type. Note that in this commit, the term synthetic child is not meant to refer to data formatters, but to the programmatically-generated children stored inside a ValueObject itself

[Enrico Granata]

Author: enrico
Date: Tue Aug 26 15:54:04 2014
New Revision: 216483

URL: http://llvm.org/viewvc/llvm-project?rev=216483&view=rev
Log:
Add an API on ValueObject to generate a 'synthetic child' of base class type. Note that in this commit, the term synthetic child is not meant to refer to data formatters, but to the programmatically-generated children stored inside a ValueObject itself

Modified:
    lldb/trunk/include/lldb/Core/ValueObject.h
    lldb/trunk/source/Core/ValueObject.cpp

Modified: lldb/trunk/include/lldb/Core/ValueObject.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Core/ValueObject.h?rev=216483&r1=216482&r2=216483&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Core/ValueObject.h (original)
+++ lldb/trunk/include/lldb/Core/ValueObject.h Tue Aug 26 15:54:04 2014
@@ -677,6 +677,9 @@ public:
     GetSyntheticChildAtOffset(uint32_t offset, const ClangASTType& type, bool can_create);
     
     virtual lldb::ValueObjectSP
+    GetSyntheticBase (const ClangASTType& type, bool can_create);
+    
+    virtual lldb::ValueObjectSP
     GetDynamicValue (lldb::DynamicValueType valueType);
     
     lldb::DynamicValueType

Modified: lldb/trunk/source/Core/ValueObject.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/ValueObject.cpp?rev=216483&r1=216482&r2=216483&view=diff
==============================================================================
--- lldb/trunk/source/Core/ValueObject.cpp (original)
+++ lldb/trunk/source/Core/ValueObject.cpp Tue Aug 26 15:54:04 2014
@@ -2215,6 +2215,48 @@ ValueObject::GetSyntheticChildAtOffset(u
     return synthetic_child_sp;
 }
 
+ValueObjectSP
+ValueObject::GetSyntheticBase (const ClangASTType& type, bool can_create)
+{
+    ValueObjectSP synthetic_child_sp;
+    
+    char name_str[64];
+    snprintf(name_str, sizeof(name_str), "%s", type.GetTypeName().AsCString("<unknown>"));
+    ConstString name_const_str(name_str);
+    
+    // Check if we have already created a synthetic array member in this
+    // valid object. If we have we will re-use it.
+    synthetic_child_sp = GetSyntheticChild (name_const_str);
+    
+    if (synthetic_child_sp.get())
+        return synthetic_child_sp;
+    
+    if (!can_create)
+        return ValueObjectSP();
+    
+    const uint32_t offset = 0;
+    const bool is_base_class = true;
+    
+    ValueObjectChild *synthetic_child = new ValueObjectChild(*this,
+                                                             type,
+                                                             name_const_str,
+                                                             type.GetByteSize(),
+                                                             offset,
+                                                             0,
+                                                             0,
+                                                             is_base_class,
+                                                             false,
+                                                             eAddressTypeInvalid);
+    if (synthetic_child)
+    {
+        AddSyntheticChild(name_const_str, synthetic_child);
+        synthetic_child_sp = synthetic_child->GetSP();
+        synthetic_child_sp->SetName(name_const_str);
+    }
+    return synthetic_child_sp;
+}
+
+
 // your expression path needs to have a leading . or ->
 // (unless it somehow "looks like" an array, in which case it has
 // a leading [ symbol). while the [ is meaningful and should be shown