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<rdar://problem/12493007>

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Added a new API call to help efficiently determine if a SBValue could have children:

     bool
     SBValue::MightHaveChildren ();
     
This is inteneded to be used bui GUI programs that need to show if a SBValue needs a disclosure triangle when displaying a hierarchical type in a tree view without having to complete the type (by calling SBValue::GetNumChildren()) as completing the type is expensive.

llvm-svn: 166460
This commit is contained in:
Greg Clayton
2012-10-23 01:50:10 +00:00
parent 164bb37c7b
commit 4a792072ce
7 changed files with 90 additions and 0 deletions
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14
lldb/source/API/SBValue.cpp
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@@ -1354,6 +1354,20 @@ SBValue::GetValueAsUnsigned(uint64_t fail_value)
return fail_value;
}
bool
SBValue::MightHaveChildren ()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
bool has_children = false;
lldb::ValueObjectSP value_sp(GetSP());
if (value_sp)
has_children = value_sp->MightHaveChildren();
if (log)
log->Printf ("SBValue(%p)::HasChildren() => %i", value_sp.get(), has_children);
return has_children;
}
uint32_t
SBValue::GetNumChildren ()
{