Files
clang-p2996/lldb/source/DataFormatters/FormattersHelpers.cpp
Enrico Granata fa6b278f9c Add the ability for formatter categories to be bound to one or more languages
What that does is it restricts formatters in those categories to only match to types coming from "compatible" source languages

llvm-svn: 247872
2015-09-17 00:14:50 +00:00

309 lines
12 KiB
C++

//===-- 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/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);
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)
{
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.SetUseDynamic(lldb::eDynamicCanRunTarget);
target->EvaluateExpression(expr.GetData(),
stack_frame,
result_sp,
options);
if (!result_sp)
return false;
stream.Printf("%s",result_sp->GetSummaryAsCString());
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_path_stream;
valobj.GetExpressionPath(expr_path_stream, false);
StreamString expr;
expr.Printf("(%s)[%s %s:%" PRId64 "]",return_type,expr_path_stream.GetData(),selector,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.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_path_stream;
valobj.GetExpressionPath(expr_path_stream, false);
StreamString expr;
expr.Printf("(%s)[%s %s:%s]",return_type,expr_path_stream.GetData(),selector,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.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;
}