Pavel Labath | e0d5184 | 2017-11-01 15:52:08 +0000 | [diff] [blame] | 1 | //===-- LibCxxQueue.cpp -----------------------------------------*- C++ -*-===// |
| 2 | // |
Chandler Carruth | 2946cd7 | 2019-01-19 08:50:56 +0000 | [diff] [blame] | 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
Pavel Labath | e0d5184 | 2017-11-01 15:52:08 +0000 | [diff] [blame] | 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "LibCxx.h" |
| 10 | #include "lldb/DataFormatters/FormattersHelpers.h" |
| 11 | |
| 12 | using namespace lldb; |
| 13 | using namespace lldb_private; |
| 14 | |
| 15 | namespace { |
| 16 | |
| 17 | class QueueFrontEnd : public SyntheticChildrenFrontEnd { |
| 18 | public: |
| 19 | QueueFrontEnd(ValueObject &valobj) : SyntheticChildrenFrontEnd(valobj) { |
| 20 | Update(); |
| 21 | } |
| 22 | |
Adrian Prantl | 0e4c482 | 2019-03-06 21:22:25 +0000 | [diff] [blame] | 23 | size_t GetIndexOfChildWithName(ConstString name) override { |
Pavel Labath | e0d5184 | 2017-11-01 15:52:08 +0000 | [diff] [blame] | 24 | return m_container_sp ? m_container_sp->GetIndexOfChildWithName(name) |
| 25 | : UINT32_MAX; |
| 26 | } |
| 27 | |
| 28 | bool MightHaveChildren() override { return true; } |
| 29 | bool Update() override; |
| 30 | |
| 31 | size_t CalculateNumChildren() override { |
| 32 | return m_container_sp ? m_container_sp->GetNumChildren() : 0; |
| 33 | } |
| 34 | |
| 35 | ValueObjectSP GetChildAtIndex(size_t idx) override { |
| 36 | return m_container_sp ? m_container_sp->GetChildAtIndex(idx, true) |
| 37 | : nullptr; |
| 38 | } |
| 39 | |
| 40 | private: |
| 41 | ValueObjectSP m_container_sp; |
| 42 | }; |
| 43 | } // namespace |
| 44 | |
| 45 | bool QueueFrontEnd::Update() { |
| 46 | m_container_sp.reset(); |
| 47 | ValueObjectSP c_sp = m_backend.GetChildMemberWithName(ConstString("c"), true); |
| 48 | if (!c_sp) |
| 49 | return false; |
| 50 | m_container_sp = c_sp->GetSyntheticValue(); |
| 51 | return false; |
| 52 | } |
| 53 | |
| 54 | SyntheticChildrenFrontEnd * |
| 55 | formatters::LibcxxQueueFrontEndCreator(CXXSyntheticChildren *, |
| 56 | lldb::ValueObjectSP valobj_sp) { |
| 57 | if (valobj_sp) |
| 58 | return new QueueFrontEnd(*valobj_sp); |
| 59 | return nullptr; |
| 60 | } |