Preparatory infrastructural work to support dynamically determining sizes of ObjC types via the runtime
This is necessary because the byte size of an ObjC class type is not reliably statically knowable (e.g. because superclasses sit deep in frameworks that we have no debug info for)
The lack of reliable size info is a problem when trying to freeze-dry an ObjC instance (not the pointer, the pointee)
This commit lays the foundation for having language runtimes help in figuring out byte sizes, and having ClangASTType ask for runtime help
No feature change as no runtime actually implements the logic, and nowhere is an ExecutionContext passed in yet
llvm-svn: 227274
diff --git a/lldb/source/Expression/IRForTarget.cpp b/lldb/source/Expression/IRForTarget.cpp
index 8e75c32..42390b3 100644
--- a/lldb/source/Expression/IRForTarget.cpp
+++ b/lldb/source/Expression/IRForTarget.cpp
@@ -590,7 +590,7 @@
&result_decl->getASTContext());
}
- if (m_result_type.GetBitSize() == 0)
+ if (m_result_type.GetBitSize(nullptr) == 0)
{
lldb_private::StreamString type_desc_stream;
m_result_type.DumpTypeDescription(&type_desc_stream);
@@ -617,7 +617,7 @@
if (log)
log->Printf("Creating a new result global: \"%s\" with size 0x%" PRIx64,
m_result_name.GetCString(),
- m_result_type.GetByteSize());
+ m_result_type.GetByteSize(nullptr));
// Construct a new result global and set up its metadata
@@ -1518,7 +1518,7 @@
value_type = global_variable->getType();
}
- const uint64_t value_size = clang_type.GetByteSize();
+ const uint64_t value_size = clang_type.GetByteSize(nullptr);
lldb::offset_t value_alignment = (clang_type.GetTypeBitAlign() + 7ull) / 8ull;
if (log)