ceff6644bb
This patch removes the comments grouping header includes. They were added after running IWYU over the LLDB codebase. However they add little value, are often outdates and burdensome to maintain. llvm-svn: 346626
125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
//===-- LibCxxInitializerList.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 "LibCxx.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/Utility/ConstString.h"
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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 lldb_private {
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namespace formatters {
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class LibcxxInitializerListSyntheticFrontEnd
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: public SyntheticChildrenFrontEnd {
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public:
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LibcxxInitializerListSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
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~LibcxxInitializerListSyntheticFrontEnd() override;
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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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ValueObject *m_start;
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CompilerType m_element_type;
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uint32_t m_element_size;
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size_t m_num_elements;
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};
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} // namespace formatters
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} // namespace lldb_private
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lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::
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LibcxxInitializerListSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp)
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: SyntheticChildrenFrontEnd(*valobj_sp), m_start(nullptr), m_element_type(),
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m_element_size(0), m_num_elements(0) {
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if (valobj_sp)
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Update();
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}
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lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::
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~LibcxxInitializerListSyntheticFrontEnd() {
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// this needs to stay around because it's a child object who will follow its
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// parent's life cycle
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// delete m_start;
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}
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size_t lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::
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CalculateNumChildren() {
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static ConstString g___size_("__size_");
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m_num_elements = 0;
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ValueObjectSP size_sp(m_backend.GetChildMemberWithName(g___size_, true));
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if (size_sp)
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m_num_elements = size_sp->GetValueAsUnsigned(0);
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return m_num_elements;
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}
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lldb::ValueObjectSP lldb_private::formatters::
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LibcxxInitializerListSyntheticFrontEnd::GetChildAtIndex(size_t idx) {
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if (!m_start)
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return lldb::ValueObjectSP();
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uint64_t offset = idx * m_element_size;
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offset = offset + m_start->GetValueAsUnsigned(0);
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StreamString name;
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name.Printf("[%" PRIu64 "]", (uint64_t)idx);
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return CreateValueObjectFromAddress(name.GetString(), offset,
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m_backend.GetExecutionContextRef(),
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m_element_type);
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}
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bool lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::
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Update() {
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static ConstString g___begin_("__begin_");
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m_start = nullptr;
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m_num_elements = 0;
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m_element_type = m_backend.GetCompilerType().GetTypeTemplateArgument(0);
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if (!m_element_type.IsValid())
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return false;
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m_element_size = m_element_type.GetByteSize(nullptr);
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if (m_element_size > 0)
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m_start =
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m_backend.GetChildMemberWithName(g___begin_, true)
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.get(); // store raw pointers or end up with a circular dependency
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return false;
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}
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bool lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::
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MightHaveChildren() {
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return true;
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}
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size_t lldb_private::formatters::LibcxxInitializerListSyntheticFrontEnd::
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GetIndexOfChildWithName(const ConstString &name) {
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if (!m_start)
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return UINT32_MAX;
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return ExtractIndexFromString(name.GetCString());
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}
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lldb_private::SyntheticChildrenFrontEnd *
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lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator(
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CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) {
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return (valobj_sp ? new LibcxxInitializerListSyntheticFrontEnd(valobj_sp)
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: nullptr);
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}
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