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
112 lines
3.5 KiB
C++
112 lines
3.5 KiB
C++
//===-- LibStdcppTuple.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 "LibStdcpp.h"
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#include "lldb/Core/ValueObject.h"
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#include "lldb/DataFormatters/FormattersHelpers.h"
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#include "lldb/DataFormatters/TypeSynthetic.h"
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#include "lldb/Utility/ConstString.h"
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#include <memory>
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#include <vector>
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::formatters;
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namespace {
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class LibStdcppTupleSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
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public:
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explicit LibStdcppTupleSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
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size_t CalculateNumChildren() override;
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lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
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bool Update() override;
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bool MightHaveChildren() override;
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size_t GetIndexOfChildWithName(ConstString name) 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_members;
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};
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} // end of anonymous namespace
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LibStdcppTupleSyntheticFrontEnd::LibStdcppTupleSyntheticFrontEnd(
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lldb::ValueObjectSP valobj_sp)
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: SyntheticChildrenFrontEnd(*valobj_sp) {
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Update();
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}
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bool LibStdcppTupleSyntheticFrontEnd::Update() {
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m_members.clear();
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ValueObjectSP valobj_backend_sp = m_backend.GetSP();
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if (!valobj_backend_sp)
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return false;
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ValueObjectSP next_child_sp = valobj_backend_sp->GetNonSyntheticValue();
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while (next_child_sp != nullptr) {
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ValueObjectSP current_child = next_child_sp;
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next_child_sp = nullptr;
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size_t child_count = current_child->GetNumChildren();
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for (size_t i = 0; i < child_count; ++i) {
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ValueObjectSP child_sp = current_child->GetChildAtIndex(i, true);
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llvm::StringRef name_str = child_sp->GetName().GetStringRef();
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if (name_str.startswith("std::_Tuple_impl<")) {
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next_child_sp = child_sp;
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} else if (name_str.startswith("std::_Head_base<")) {
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ValueObjectSP value_sp =
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child_sp->GetChildMemberWithName(ConstString("_M_head_impl"), true);
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if (value_sp) {
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StreamString name;
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name.Printf("[%zd]", m_members.size());
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m_members.push_back(value_sp->Clone(ConstString(name.GetString())).get());
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}
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}
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}
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}
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return false;
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}
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bool LibStdcppTupleSyntheticFrontEnd::MightHaveChildren() { return true; }
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lldb::ValueObjectSP
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LibStdcppTupleSyntheticFrontEnd::GetChildAtIndex(size_t idx) {
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if (idx < m_members.size() && m_members[idx])
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return m_members[idx]->GetSP();
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return lldb::ValueObjectSP();
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}
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size_t LibStdcppTupleSyntheticFrontEnd::CalculateNumChildren() {
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return m_members.size();
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}
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size_t LibStdcppTupleSyntheticFrontEnd::GetIndexOfChildWithName(
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ConstString name) {
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return ExtractIndexFromString(name.GetCString());
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}
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SyntheticChildrenFrontEnd *
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lldb_private::formatters::LibStdcppTupleSyntheticFrontEndCreator(
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CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) {
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return (valobj_sp ? new LibStdcppTupleSyntheticFrontEnd(valobj_sp) : nullptr);
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}
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