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//===-- UniqueDWARFASTType.cpp ----------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "UniqueDWARFASTType.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Symbol/Declaration.h"
bool
UniqueDWARFASTTypeList::Find (const DWARFDIE &die,
const lldb_private::Declaration &decl,
const int32_t byte_size,
UniqueDWARFASTType &entry) const
{
for (const UniqueDWARFASTType &udt : m_collection)
{
// Make sure the tags match
if (udt.m_die.Tag() == die.Tag())
{
// Validate byte sizes of both types only if both are valid.
if (udt.m_byte_size < 0 || byte_size < 0 || udt.m_byte_size == byte_size)
{
// Make sure the file and line match
if (udt.m_declaration == decl)
{
// The type has the same name, and was defined on the same
// file and line. Now verify all of the parent DIEs match.
DWARFDIE parent_arg_die = die.GetParent();
DWARFDIE parent_pos_die = udt.m_die.GetParent();
bool match = true;
bool done = false;
while (!done && match && parent_arg_die && parent_pos_die)
{
const dw_tag_t parent_arg_tag = parent_arg_die.Tag();
const dw_tag_t parent_pos_tag = parent_pos_die.Tag();
if (parent_arg_tag == parent_pos_tag)
{
switch (parent_arg_tag)
{
case DW_TAG_class_type:
case DW_TAG_structure_type:
case DW_TAG_union_type:
case DW_TAG_namespace:
{
const char *parent_arg_die_name = parent_arg_die.GetName();
if (parent_arg_die_name == NULL) // Anonymous (i.e. no-name) struct
{
match = false;
}
else
{
const char *parent_pos_die_name = parent_pos_die.GetName();
if (parent_pos_die_name == NULL || ((parent_arg_die_name != parent_pos_die_name) && strcmp (parent_arg_die_name, parent_pos_die_name)))
match = false;
}
}
break;
case DW_TAG_compile_unit:
done = true;
break;
}
}
parent_arg_die = parent_arg_die.GetParent();
parent_pos_die = parent_pos_die.GetParent();
}
if (match)
{
entry = udt;
return true;
}
}
}
}
}
return false;
}
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