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llvm-project/lldb/source/DataFormatters/FormattersHelpers.cpp

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//===-- FormattersHelpers.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
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/DataFormatters/FormattersHelpers.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::formatters;
void
lldb_private::formatters::AddFormat (TypeCategoryImpl::SharedPointer category_sp,
lldb::Format format,
ConstString type_name,
TypeFormatImpl::Flags flags,
bool regex)
{
lldb::TypeFormatImplSP format_sp(new TypeFormatImpl_Format(format, flags));
if (regex)
category_sp->GetRegexTypeFormatsContainer()->Add(RegularExpressionSP(new RegularExpression(type_name.AsCString())),format_sp);
else
category_sp->GetTypeFormatsContainer()->Add(type_name, format_sp);
}
void
lldb_private::formatters::AddSummary(TypeCategoryImpl::SharedPointer category_sp,
TypeSummaryImplSP summary_sp,
ConstString type_name,
bool regex)
{
if (regex)
category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression(type_name.AsCString())),summary_sp);
else
category_sp->GetTypeSummariesContainer()->Add(type_name, summary_sp);
}
void
lldb_private::formatters::AddStringSummary(TypeCategoryImpl::SharedPointer category_sp,
const char* string,
ConstString type_name,
TypeSummaryImpl::Flags flags,
bool regex)
{
lldb::TypeSummaryImplSP summary_sp(new StringSummaryFormat(flags,
string));
if (regex)
category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression(type_name.AsCString())),summary_sp);
else
category_sp->GetTypeSummariesContainer()->Add(type_name, summary_sp);
}
void
lldb_private::formatters::AddOneLineSummary (TypeCategoryImpl::SharedPointer category_sp,
ConstString type_name,
TypeSummaryImpl::Flags flags,
bool regex)
{
flags.SetShowMembersOneLiner(true);
lldb::TypeSummaryImplSP summary_sp(new StringSummaryFormat(flags, ""));
if (regex)
category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression(type_name.AsCString())),summary_sp);
else
category_sp->GetTypeSummariesContainer()->Add(type_name, summary_sp);
}
#ifndef LLDB_DISABLE_PYTHON
void
lldb_private::formatters::AddCXXSummary (TypeCategoryImpl::SharedPointer category_sp,
CXXFunctionSummaryFormat::Callback funct,
const char* description,
ConstString type_name,
TypeSummaryImpl::Flags flags,
bool regex)
{
lldb::TypeSummaryImplSP summary_sp(new CXXFunctionSummaryFormat(flags,funct,description));
if (regex)
category_sp->GetRegexTypeSummariesContainer()->Add(RegularExpressionSP(new RegularExpression(type_name.AsCString())),summary_sp);
else
category_sp->GetTypeSummariesContainer()->Add(type_name, summary_sp);
}
void
lldb_private::formatters::AddCXXSynthetic (TypeCategoryImpl::SharedPointer category_sp,
CXXSyntheticChildren::CreateFrontEndCallback generator,
const char* description,
ConstString type_name,
ScriptedSyntheticChildren::Flags flags,
bool regex)
{
lldb::SyntheticChildrenSP synth_sp(new CXXSyntheticChildren(flags,description,generator));
if (regex)
category_sp->GetRegexTypeSyntheticsContainer()->Add(RegularExpressionSP(new RegularExpression(type_name.AsCString())), synth_sp);
else
category_sp->GetTypeSyntheticsContainer()->Add(type_name,synth_sp);
}
void
lldb_private::formatters::AddFilter (TypeCategoryImpl::SharedPointer category_sp,
std::vector<std::string> children,
const char* description,
ConstString type_name,
ScriptedSyntheticChildren::Flags flags,
bool regex)
{
TypeFilterImplSP filter_sp(new TypeFilterImpl(flags));
for (auto child : children)
filter_sp->AddExpressionPath(child);
if (regex)
category_sp->GetRegexTypeFiltersContainer()->Add(RegularExpressionSP(new RegularExpression(type_name.AsCString())), filter_sp);
else
category_sp->GetTypeFiltersContainer()->Add(type_name,filter_sp);
}
#endif
StackFrame*
lldb_private::formatters::GetViableFrame (ExecutionContext exe_ctx)
{
StackFrame* frame = exe_ctx.GetFramePtr();
if (frame)
return frame;
Process* process = exe_ctx.GetProcessPtr();
if (!process)
return nullptr;
ThreadSP thread_sp(process->GetThreadList().GetSelectedThread());
if (thread_sp)
return thread_sp->GetSelectedFrame().get();
return nullptr;
}
bool
lldb_private::formatters::ExtractValueFromObjCExpression (ValueObject &valobj,
const char* target_type,
const char* selector,
uint64_t &value)
{
if (!target_type || !*target_type)
return false;
if (!selector || !*selector)
return false;
StreamString expr;
expr.Printf("(%s)[(id)0x%" PRIx64 " %s]",target_type,valobj.GetPointerValue(),selector);
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = GetViableFrame(exe_ctx);
if (!target || !stack_frame)
return false;
EvaluateExpressionOptions options;
options.SetCoerceToId(false);
options.SetUnwindOnError(true);
options.SetKeepInMemory(true);
options.SetLanguage(lldb::eLanguageTypeObjC_plus_plus);
options.SetResultIsInternal(true);
options.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
result_sp,
options);
if (!result_sp)
return false;
value = result_sp->GetValueAsUnsigned(0);
return true;
}
bool
lldb_private::formatters::ExtractSummaryFromObjCExpression (ValueObject &valobj,
const char* target_type,
const char* selector,
Stream &stream,
lldb::LanguageType lang_type)
{
if (!target_type || !*target_type)
return false;
if (!selector || !*selector)
return false;
StreamString expr;
expr.Printf("(%s)[(id)0x%" PRIx64 " %s]",target_type,valobj.GetPointerValue(),selector);
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = GetViableFrame(exe_ctx);
if (!target || !stack_frame)
return false;
EvaluateExpressionOptions options;
options.SetCoerceToId(false);
options.SetUnwindOnError(true);
options.SetKeepInMemory(true);
options.SetLanguage(lldb::eLanguageTypeObjC_plus_plus);
options.SetResultIsInternal(true);
options.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
result_sp,
options);
if (!result_sp)
return false;
stream.Printf("%s",result_sp->GetSummaryAsCString(lang_type));
return true;
}
lldb::ValueObjectSP
lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj,
const char* return_type,
const char* selector,
uint64_t index)
{
lldb::ValueObjectSP valobj_sp;
if (!return_type || !*return_type)
return valobj_sp;
if (!selector || !*selector)
return valobj_sp;
StreamString expr;
const char *colon = "";
llvm::StringRef selector_sr(selector);
if (selector_sr.back() != ':')
colon = ":";
expr.Printf("(%s)[(id)0x%" PRIx64 " %s%s%" PRId64 "]",return_type,valobj.GetPointerValue(),selector,colon,index);
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = GetViableFrame(exe_ctx);
if (!target || !stack_frame)
return valobj_sp;
EvaluateExpressionOptions options;
options.SetCoerceToId(false);
options.SetUnwindOnError(true);
options.SetKeepInMemory(true);
options.SetLanguage(lldb::eLanguageTypeObjC_plus_plus);
options.SetResultIsInternal(true);
options.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
valobj_sp,
options);
return valobj_sp;
}
lldb::ValueObjectSP
lldb_private::formatters::CallSelectorOnObject (ValueObject &valobj,
const char* return_type,
const char* selector,
const char* key)
{
lldb::ValueObjectSP valobj_sp;
if (!return_type || !*return_type)
return valobj_sp;
if (!selector || !*selector)
return valobj_sp;
if (!key || !*key)
return valobj_sp;
StreamString expr;
const char *colon = "";
llvm::StringRef selector_sr(selector);
if (selector_sr.back() != ':')
colon = ":";
expr.Printf("(%s)[(id)0x%" PRIx64 " %s%s%s]",return_type,valobj.GetPointerValue(),selector,colon,key);
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
lldb::ValueObjectSP result_sp;
Target* target = exe_ctx.GetTargetPtr();
StackFrame* stack_frame = GetViableFrame(exe_ctx);
if (!target || !stack_frame)
return valobj_sp;
EvaluateExpressionOptions options;
options.SetCoerceToId(false);
options.SetUnwindOnError(true);
options.SetKeepInMemory(true);
options.SetLanguage(lldb::eLanguageTypeObjC_plus_plus);
options.SetResultIsInternal(true);
options.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
valobj_sp,
options);
return valobj_sp;
}
size_t
lldb_private::formatters::ExtractIndexFromString (const char* item_name)
{
if (!item_name || !*item_name)
return UINT32_MAX;
if (*item_name != '[')
return UINT32_MAX;
item_name++;
char* endptr = NULL;
unsigned long int idx = ::strtoul(item_name, &endptr, 0);
if (idx == 0 && endptr == item_name)
return UINT32_MAX;
if (idx == ULONG_MAX)
return UINT32_MAX;
return idx;
}
lldb::addr_t
lldb_private::formatters::GetArrayAddressOrPointerValue (ValueObject& valobj)
{
lldb::addr_t data_addr = LLDB_INVALID_ADDRESS;
if (valobj.IsPointerType())
data_addr = valobj.GetValueAsUnsigned(0);
else if (valobj.IsArrayType())
data_addr = valobj.GetAddressOf();
return data_addr;
}
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