| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/developer/debug/zxdb/expr/found_member.h" |
| |
| namespace zxdb { |
| |
| FoundMember::FoundMember() = default; |
| |
| FoundMember::FoundMember(const Collection* collection, const DataMember* data_member) |
| : object_path_(RefPtrTo(collection)), data_member_(RefPtrTo(data_member)) {} |
| |
| FoundMember::FoundMember(InheritancePath path, const DataMember* data_member) |
| : object_path_(std::move(path)), data_member_(RefPtrTo(data_member)) {} |
| |
| FoundMember::~FoundMember() = default; |
| |
| std::optional<uint32_t> FoundMember::GetDataMemberOffset() const { |
| if (is_null()) |
| return std::nullopt; |
| |
| auto containing_offset = object_path_.BaseOffsetInDerived(); |
| if (!containing_offset) |
| return std::nullopt; // Virtual inheritance. |
| |
| if (data_member_->is_external()) |
| return std::nullopt; // Static. |
| |
| return *containing_offset + data_member_->member_location(); |
| } |
| |
| } // namespace zxdb |
