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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 

llvm-svn: 216483
This commit is contained in:
Enrico Granata 2014-08-26 20:54:04 +00:00
parent 6bd6b1c177
commit 32556cda18
2 changed files with 45 additions and 0 deletions
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3
lldb/include/lldb/Core/ValueObject.h
View File

@ -676,6 +676,9 @@ public:
virtual lldb::ValueObjectSP
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);

42
lldb/source/Core/ValueObject.cpp
View File

@ -2215,6 +2215,48 @@ ValueObject::GetSyntheticChildAtOffset(uint32_t offset, const ClangASTType& type
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