808142876c
Summary: A *.cpp file header in LLDB (and in LLDB) should like this: ``` //===-- TestUtilities.cpp -------------------------------------------------===// ``` However in LLDB most of our source files have arbitrary changes to this format and these changes are spreading through LLDB as folks usually just use the existing source files as templates for their new files (most notably the unnecessary editor language indicator `-*- C++ -*-` is spreading and in every review someone is pointing out that this is wrong, resulting in people pointing out that this is done in the same way in other files). This patch removes most of these inconsistencies including the editor language indicators, all the different missing/additional '-' characters, files that center the file name, missing trailing `===//` (mostly caused by clang-format breaking the line). Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere Reviewed By: JDevlieghere Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D73258
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
//===-- LibCxxTuple.cpp ---------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "LibCxx.h"
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#include "lldb/DataFormatters/FormattersHelpers.h"
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using namespace lldb;
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using namespace lldb_private;
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namespace {
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class TupleFrontEnd: public SyntheticChildrenFrontEnd {
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public:
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TupleFrontEnd(ValueObject &valobj) : SyntheticChildrenFrontEnd(valobj) {
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Update();
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}
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size_t GetIndexOfChildWithName(ConstString name) override {
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return formatters::ExtractIndexFromString(name.GetCString());
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}
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bool MightHaveChildren() override { return true; }
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bool Update() override;
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size_t CalculateNumChildren() override { return m_elements.size(); }
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ValueObjectSP GetChildAtIndex(size_t idx) override;
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private:
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// The lifetime of a ValueObject and all its derivative ValueObjects
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// (children, clones, etc.) is managed by a ClusterManager. These
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// objects are only destroyed when every shared pointer to any of them
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// is destroyed, so we must not store a shared pointer to any ValueObject
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// derived from our backend ValueObject (since we're in the same cluster).
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std::vector<ValueObject*> m_elements;
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ValueObject* m_base = nullptr;
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};
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}
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bool TupleFrontEnd::Update() {
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m_elements.clear();
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m_base = nullptr;
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ValueObjectSP base_sp;
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base_sp = m_backend.GetChildMemberWithName(ConstString("__base_"), true);
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if (!base_sp) {
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// Pre r304382 name of the base element.
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base_sp = m_backend.GetChildMemberWithName(ConstString("base_"), true);
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}
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if (!base_sp)
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return false;
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m_base = base_sp.get();
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m_elements.assign(base_sp->GetCompilerType().GetNumDirectBaseClasses(),
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nullptr);
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return false;
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}
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ValueObjectSP TupleFrontEnd::GetChildAtIndex(size_t idx) {
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if (idx >= m_elements.size())
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return ValueObjectSP();
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if (!m_base)
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return ValueObjectSP();
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if (m_elements[idx])
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return m_elements[idx]->GetSP();
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CompilerType holder_type =
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m_base->GetCompilerType().GetDirectBaseClassAtIndex(idx, nullptr);
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if (!holder_type)
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return ValueObjectSP();
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ValueObjectSP holder_sp = m_base->GetChildAtIndex(idx, true);
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if (!holder_sp)
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return ValueObjectSP();
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ValueObjectSP elem_sp = holder_sp->GetChildAtIndex(0, true);
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if (elem_sp)
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m_elements[idx] =
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elem_sp->Clone(ConstString(llvm::formatv("[{0}]", idx).str())).get();
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if (m_elements[idx])
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return m_elements[idx]->GetSP();
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return ValueObjectSP();
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}
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SyntheticChildrenFrontEnd *
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formatters::LibcxxTupleFrontEndCreator(CXXSyntheticChildren *,
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lldb::ValueObjectSP valobj_sp) {
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if (valobj_sp)
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return new TupleFrontEnd(*valobj_sp);
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return nullptr;
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}
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