| //===-- 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: |
| case DW_TAG_partial_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; |
| } |