llvm-project/lldb/source/Plugins/Language/Java/JavaLanguage.cpp

100 lines
2.5 KiB
C++

//===-- JavaLanguage.cpp ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// C Includes
#include <string.h>
// C++ Includes
#include <functional>
#include <mutex>
// Other libraries and framework includes
#include "llvm/ADT/StringRef.h"
// Project includes
#include "JavaFormatterFunctions.h"
#include "JavaLanguage.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/DataFormatters/DataVisualization.h"
#include "lldb/DataFormatters/FormattersHelpers.h"
#include "lldb/Symbol/JavaASTContext.h"
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::formatters;
void
JavaLanguage::Initialize()
{
PluginManager::RegisterPlugin(GetPluginNameStatic(), "Java Language", CreateInstance);
}
void
JavaLanguage::Terminate()
{
PluginManager::UnregisterPlugin(CreateInstance);
}
lldb_private::ConstString
JavaLanguage::GetPluginNameStatic()
{
static ConstString g_name("Java");
return g_name;
}
lldb_private::ConstString
JavaLanguage::GetPluginName()
{
return GetPluginNameStatic();
}
uint32_t
JavaLanguage::GetPluginVersion()
{
return 1;
}
Language *
JavaLanguage::CreateInstance(lldb::LanguageType language)
{
if (language == eLanguageTypeJava)
return new JavaLanguage();
return nullptr;
}
bool
JavaLanguage::IsNilReference(ValueObject &valobj)
{
if (!valobj.GetCompilerType().IsReferenceType())
return false;
// If we failed to read the value then it is not a nil reference.
return valobj.GetValueAsUnsigned(UINT64_MAX) == 0;
}
lldb::TypeCategoryImplSP
JavaLanguage::GetFormatters()
{
static std::once_flag g_initialize;
static TypeCategoryImplSP g_category;
std::call_once(g_initialize, [this]() -> void {
DataVisualization::Categories::GetCategory(GetPluginName(), g_category);
if (g_category)
{
lldb::TypeSummaryImplSP string_summary_sp(new CXXFunctionSummaryFormat(
TypeSummaryImpl::Flags().SetDontShowChildren(true), lldb_private::formatters::JavaStringSummaryProvider,
"java.lang.String summary provider"));
g_category->GetTypeSummariesContainer()->Add(ConstString("java::lang::String"), string_summary_sp);
}
});
return g_category;
}