bf9a77305f
This moves the following classes from Core -> Utility. ConstString Error RegularExpression Stream StreamString The goal here is to get lldbUtility into a state where it has no dependendencies except on itself and LLVM, so it can be the starting point at which to start untangling LLDB's dependencies. These are all low level and very widely used classes, and previously lldbUtility had dependencies up to lldbCore in order to use these classes. So moving then down to lldbUtility makes sense from both the short term and long term perspective in solving this problem. Differential Revision: https://reviews.llvm.org/D29427 llvm-svn: 293941
110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
//===-- LibStdcppTuple.cpp --------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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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(const ConstString &name) override;
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private:
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std::vector<ValueObjectSP> 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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value_sp->SetName(ConstString(name.GetString()));
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m_members.push_back(value_sp);
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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())
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return m_members[idx];
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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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const 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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