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llvm-project/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
Luke Drummond f5bb1d6c4e Expression evaluation for overloaded C functions (redux) 
This is a redux of [Ewan's patch](https://reviews.llvm.org/D17957) , refactored
to properly substitute primitive  types using a hook in the itanium demangler,
and updated after the previous patch went stale

The new `SubsPrimitiveParmItanium` function takes a symbol name and replacement
primitive type parameter as before but parses it using the FastDemangler, which
has been modified to be able to notify clients of parse events (primitive types
at this point).

Additionally, we now use a `set` of `ConstStrings` instead of a `vector` so
that we don't try and resolve the same invalid candidate multiple times.

Differential Revision: https://reviews.llvm.org/D27223
Subscribers: lldb-commits

llvm-svn: 290117
2016-12-19 17:22:44 +00:00

1166 lines
45 KiB
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//===-- CPlusPlusLanguage.cpp -----------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "CPlusPlusLanguage.h"
// C Includes
#include <cctype>
#include <cstring>
// C++ Includes
#include <functional>
#include <memory>
#include <mutex>
#include <set>
// Other libraries and framework includes
#include "llvm/ADT/StringRef.h"
// Project includes
#include "lldb/Core/ConstString.h"
#include "lldb/Core/FastDemangle.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/UniqueCStringMap.h"
#include "lldb/DataFormatters/CXXFunctionPointer.h"
#include "lldb/DataFormatters/DataVisualization.h"
#include "lldb/DataFormatters/FormattersHelpers.h"
#include "lldb/DataFormatters/VectorType.h"
#include "BlockPointer.h"
#include "CxxStringTypes.h"
#include "LibCxx.h"
#include "LibCxxAtomic.h"
#include "LibStdcpp.h"
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::formatters;
void CPlusPlusLanguage::Initialize() {
PluginManager::RegisterPlugin(GetPluginNameStatic(), "C++ Language",
CreateInstance);
}
void CPlusPlusLanguage::Terminate() {
PluginManager::UnregisterPlugin(CreateInstance);
}
lldb_private::ConstString CPlusPlusLanguage::GetPluginNameStatic() {
static ConstString g_name("cplusplus");
return g_name;
}
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
lldb_private::ConstString CPlusPlusLanguage::GetPluginName() {
return GetPluginNameStatic();
}
uint32_t CPlusPlusLanguage::GetPluginVersion() { return 1; }
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
Language *CPlusPlusLanguage::CreateInstance(lldb::LanguageType language) {
if (Language::LanguageIsCPlusPlus(language))
return new CPlusPlusLanguage();
return nullptr;
}
void CPlusPlusLanguage::MethodName::Clear() {
m_full.Clear();
m_basename = llvm::StringRef();
m_context = llvm::StringRef();
m_arguments = llvm::StringRef();
m_qualifiers = llvm::StringRef();
m_type = eTypeInvalid;
m_parsed = false;
m_parse_error = false;
}
bool ReverseFindMatchingChars(const llvm::StringRef &s,
const llvm::StringRef &left_right_chars,
size_t &left_pos, size_t &right_pos,
size_t pos = llvm::StringRef::npos) {
assert(left_right_chars.size() == 2);
left_pos = llvm::StringRef::npos;
const char left_char = left_right_chars[0];
const char right_char = left_right_chars[1];
pos = s.find_last_of(left_right_chars, pos);
if (pos == llvm::StringRef::npos || s[pos] == left_char)
return false;
right_pos = pos;
uint32_t depth = 1;
while (pos > 0 && depth > 0) {
pos = s.find_last_of(left_right_chars, pos);
if (pos == llvm::StringRef::npos)
return false;
if (s[pos] == left_char) {
if (--depth == 0) {
left_pos = pos;
return left_pos < right_pos;
}
} else if (s[pos] == right_char) {
++depth;
}
}
return false;
}
static bool IsValidBasename(const llvm::StringRef &basename) {
// Check that the basename matches with the following regular expression or is
// an operator name:
// "^~?([A-Za-z_][A-Za-z_0-9]*)(<.*>)?$"
// We are using a hand written implementation because it is significantly more
// efficient then
// using the general purpose regular expression library.
size_t idx = 0;
if (basename.size() > 0 && basename[0] == '~')
idx = 1;
if (basename.size() <= idx)
return false; // Empty string or "~"
if (!std::isalpha(basename[idx]) && basename[idx] != '_')
return false; // First charater (after removing the possible '~'') isn't in
// [A-Za-z_]
// Read all characters matching [A-Za-z_0-9]
++idx;
while (idx < basename.size()) {
if (!std::isalnum(basename[idx]) && basename[idx] != '_')
break;
++idx;
}
// We processed all characters. It is a vaild basename.
if (idx == basename.size())
return true;
// Check for basename with template arguments
// TODO: Improve the quality of the validation with validating the template
// arguments
if (basename[idx] == '<' && basename.back() == '>')
return true;
// Check if the basename is a vaild C++ operator name
if (!basename.startswith("operator"))
return false;
static RegularExpression g_operator_regex(
llvm::StringRef("^(operator)( "
"?)([A-Za-z_][A-Za-z_0-9]*|\\(\\)|"
"\\[\\]|[\\^<>=!\\/"
"*+-]+)(<.*>)?(\\[\\])?$"));
std::string basename_str(basename.str());
return g_operator_regex.Execute(basename_str, nullptr);
}
void CPlusPlusLanguage::MethodName::Parse() {
if (!m_parsed && m_full) {
// ConstString mangled;
// m_full.GetMangledCounterpart(mangled);
// printf ("\n parsing = '%s'\n", m_full.GetCString());
// if (mangled)
// printf (" mangled = '%s'\n", mangled.GetCString());
m_parse_error = false;
m_parsed = true;
llvm::StringRef full(m_full.GetCString());
size_t arg_start, arg_end;
llvm::StringRef parens("()", 2);
if (ReverseFindMatchingChars(full, parens, arg_start, arg_end)) {
m_arguments = full.substr(arg_start, arg_end - arg_start + 1);
if (arg_end + 1 < full.size())
m_qualifiers = full.substr(arg_end + 1);
if (arg_start > 0) {
size_t basename_end = arg_start;
size_t context_start = 0;
size_t context_end = llvm::StringRef::npos;
if (basename_end > 0 && full[basename_end - 1] == '>') {
// TODO: handle template junk...
// Templated function
size_t template_start, template_end;
llvm::StringRef lt_gt("<>", 2);
if (ReverseFindMatchingChars(full, lt_gt, template_start,
template_end, basename_end)) {
// Check for templated functions that include return type like:
// 'void foo<Int>()'
context_start = full.rfind(' ', template_start);
if (context_start == llvm::StringRef::npos)
context_start = 0;
else
++context_start;
context_end = full.rfind(':', template_start);
if (context_end == llvm::StringRef::npos ||
context_end < context_start)
context_end = context_start;
} else {
context_end = full.rfind(':', basename_end);
}
} else if (context_end == llvm::StringRef::npos) {
context_end = full.rfind(':', basename_end);
}
if (context_end == llvm::StringRef::npos)
m_basename = full.substr(0, basename_end);
else {
if (context_start < context_end)
m_context =
full.substr(context_start, context_end - 1 - context_start);
const size_t basename_begin = context_end + 1;
m_basename =
full.substr(basename_begin, basename_end - basename_begin);
}
m_type = eTypeUnknownMethod;
} else {
m_parse_error = true;
return;
}
if (!IsValidBasename(m_basename)) {
// The C++ basename doesn't match our regular expressions so this can't
// be a valid C++ method, clear everything out and indicate an error
m_context = llvm::StringRef();
m_basename = llvm::StringRef();
m_arguments = llvm::StringRef();
m_qualifiers = llvm::StringRef();
m_parse_error = true;
}
} else {
m_parse_error = true;
}
}
}
llvm::StringRef CPlusPlusLanguage::MethodName::GetBasename() {
if (!m_parsed)
Parse();
return m_basename;
}
llvm::StringRef CPlusPlusLanguage::MethodName::GetContext() {
if (!m_parsed)
Parse();
return m_context;
}
llvm::StringRef CPlusPlusLanguage::MethodName::GetArguments() {
if (!m_parsed)
Parse();
return m_arguments;
}
llvm::StringRef CPlusPlusLanguage::MethodName::GetQualifiers() {
if (!m_parsed)
Parse();
return m_qualifiers;
}
std::string CPlusPlusLanguage::MethodName::GetScopeQualifiedName() {
if (!m_parsed)
Parse();
if (m_basename.empty() || m_context.empty())
return std::string();
std::string res;
res += m_context;
res += "::";
res += m_basename;
return res;
}
bool CPlusPlusLanguage::IsCPPMangledName(const char *name) {
// FIXME, we should really run through all the known C++ Language plugins and
// ask each one if
// this is a C++ mangled name, but we can put that off till there is actually
// more than one
// we care about.
return (name != nullptr && name[0] == '_' && name[1] == 'Z');
}
bool CPlusPlusLanguage::ExtractContextAndIdentifier(
const char *name, llvm::StringRef &context, llvm::StringRef &identifier) {
static RegularExpression g_basename_regex(llvm::StringRef(
"^(([A-Za-z_][A-Za-z_0-9]*::)*)(~?[A-Za-z_~][A-Za-z_0-9]*)$"));
RegularExpression::Match match(4);
if (g_basename_regex.Execute(llvm::StringRef::withNullAsEmpty(name),
&match)) {
match.GetMatchAtIndex(name, 1, context);
match.GetMatchAtIndex(name, 3, identifier);
return true;
}
return false;
}
class CPPRuntimeEquivalents {
public:
CPPRuntimeEquivalents() {
m_impl.Append(ConstString("std::basic_string<char, std::char_traits<char>, "
"std::allocator<char> >")
.GetStringRef(),
ConstString("basic_string<char>"));
// these two (with a prefixed std::) occur when c++stdlib string class
// occurs as a template argument in some STL container
m_impl.Append(ConstString("std::basic_string<char, std::char_traits<char>, "
"std::allocator<char> >")
.GetStringRef(),
ConstString("std::basic_string<char>"));
m_impl.Sort();
}
void Add(ConstString &type_name, ConstString &type_equivalent) {
m_impl.Insert(type_name.GetStringRef(), type_equivalent);
}
uint32_t FindExactMatches(ConstString &type_name,
std::vector<ConstString> &equivalents) {
uint32_t count = 0;
for (ImplData match =
m_impl.FindFirstValueForName(type_name.GetStringRef());
match != nullptr; match = m_impl.FindNextValueForName(match)) {
equivalents.push_back(match->value);
count++;
}
return count;
}
// partial matches can occur when a name with equivalents is a template
// argument.
// e.g. we may have "class Foo" be a match for "struct Bar". if we have a
// typename
// such as "class Templatized<class Foo, Anything>" we want this to be
// replaced with
// "class Templatized<struct Bar, Anything>". Since partial matching is time
// consuming
// once we get a partial match, we add it to the exact matches list for faster
// retrieval
uint32_t FindPartialMatches(ConstString &type_name,
std::vector<ConstString> &equivalents) {
uint32_t count = 0;
llvm::StringRef type_name_cstr = type_name.GetStringRef();
size_t items_count = m_impl.GetSize();
for (size_t item = 0; item < items_count; item++) {
llvm::StringRef key_cstr = m_impl.GetCStringAtIndex(item);
if (type_name_cstr.contains(key_cstr)) {
count += AppendReplacements(type_name_cstr, key_cstr, equivalents);
}
}
return count;
}
private:
std::string &replace(std::string &target, std::string &pattern,
std::string &with) {
size_t pos;
size_t pattern_len = pattern.size();
while ((pos = target.find(pattern)) != std::string::npos)
target.replace(pos, pattern_len, with);
return target;
}
uint32_t AppendReplacements(llvm::StringRef original,
llvm::StringRef matching_key,
std::vector<ConstString> &equivalents) {
std::string matching_key_str(matching_key);
ConstString original_const(original);
uint32_t count = 0;
for (ImplData match = m_impl.FindFirstValueForName(matching_key);
match != nullptr; match = m_impl.FindNextValueForName(match)) {
std::string target(original);
std::string equiv_class(match->value.AsCString());
replace(target, matching_key_str, equiv_class);
ConstString target_const(target.c_str());
// you will most probably want to leave this off since it might make this map
// grow indefinitely
#ifdef ENABLE_CPP_EQUIVALENTS_MAP_TO_GROW
Add(original_const, target_const);
#endif
equivalents.push_back(target_const);
count++;
}
return count;
}
typedef UniqueCStringMap<ConstString> Impl;
typedef const Impl::Entry *ImplData;
Impl m_impl;
};
static CPPRuntimeEquivalents &GetEquivalentsMap() {
static CPPRuntimeEquivalents g_equivalents_map;
return g_equivalents_map;
}
uint32_t
CPlusPlusLanguage::FindEquivalentNames(ConstString type_name,
std::vector<ConstString> &equivalents) {
uint32_t count = GetEquivalentsMap().FindExactMatches(type_name, equivalents);
bool might_have_partials =
(count == 0) // if we have a full name match just use it
&& (strchr(type_name.AsCString(), '<') !=
nullptr // we should only have partial matches when templates are
// involved, check that we have
&& strchr(type_name.AsCString(), '>') != nullptr); // angle brackets
// in the type_name
// before trying to
// scan for partial
// matches
if (might_have_partials)
count = GetEquivalentsMap().FindPartialMatches(type_name, equivalents);
return count;
}
/// Given a mangled function `mangled`, replace all the primitive function type
/// arguments of `search` with type `replace`.
static ConstString SubsPrimitiveParmItanium(llvm::StringRef mangled,
llvm::StringRef search,
llvm::StringRef replace) {
Log *log = GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE);
const size_t max_len =
mangled.size() + mangled.count(search) * replace.size() + 1;
// Make a temporary buffer to fix up the mangled parameter types and copy the
// original there
std::string output_buf;
output_buf.reserve(max_len);
output_buf.insert(0, mangled.str());
ptrdiff_t replaced_offset = 0;
auto swap_parms_hook = [&](const char *parsee) {
if (!parsee || !*parsee)
return;
// Check whether we've found a substitutee
llvm::StringRef s(parsee);
if (s.startswith(search)) {
// account for the case where a replacement is of a different length to
// the original
replaced_offset += replace.size() - search.size();
ptrdiff_t replace_idx = (mangled.size() - s.size()) + replaced_offset;
output_buf.erase(replace_idx, search.size());
output_buf.insert(replace_idx, replace.str());
}
};
// FastDemangle will call our hook for each instance of a primitive type,
// allowing us to perform substitution
const char *const demangled =
FastDemangle(mangled.str().c_str(), mangled.size(), swap_parms_hook);
if (log)
log->Printf("substituted mangling for %s:{%s} %s:{%s}\n",
mangled.str().c_str(), demangled, output_buf.c_str(),
FastDemangle(output_buf.c_str()));
return output_buf == mangled ? ConstString() : ConstString(output_buf);
}
uint32_t CPlusPlusLanguage::FindAlternateFunctionManglings(
const ConstString mangled_name, std::set<ConstString> &alternates) {
const auto start_size = alternates.size();
/// Get a basic set of alternative manglings for the given symbol `name`, by
/// making a few basic possible substitutions on basic types, storage duration
/// and `const`ness for the given symbol. The output parameter `alternates`
/// is filled with a best-guess, non-exhaustive set of different manglings
/// for the given name.
// Maybe we're looking for a const symbol but the debug info told us it was
// non-const...
if (!strncmp(mangled_name.GetCString(), "_ZN", 3) &&
strncmp(mangled_name.GetCString(), "_ZNK", 4)) {
std::string fixed_scratch("_ZNK");
fixed_scratch.append(mangled_name.GetCString() + 3);
alternates.insert(ConstString(fixed_scratch));
}
// Maybe we're looking for a static symbol but we thought it was global...
if (!strncmp(mangled_name.GetCString(), "_Z", 2) &&
strncmp(mangled_name.GetCString(), "_ZL", 3)) {
std::string fixed_scratch("_ZL");
fixed_scratch.append(mangled_name.GetCString() + 2);
alternates.insert(ConstString(fixed_scratch));
}
// `char` is implementation defined as either `signed` or `unsigned`. As a
// result a char parameter has 3 possible manglings: 'c'-char, 'a'-signed
// char, 'h'-unsigned char. If we're looking for symbols with a signed char
// parameter, try finding matches which have the general case 'c'.
if (ConstString char_fixup =
SubsPrimitiveParmItanium(mangled_name.GetStringRef(), "a", "c"))
alternates.insert(char_fixup);
// long long parameter mangling 'x', may actually just be a long 'l' argument
if (ConstString long_fixup =
SubsPrimitiveParmItanium(mangled_name.GetStringRef(), "x", "l"))
alternates.insert(long_fixup);
// unsigned long long parameter mangling 'y', may actually just be unsigned
// long 'm' argument
if (ConstString ulong_fixup =
SubsPrimitiveParmItanium(mangled_name.GetStringRef(), "y", "m"))
alternates.insert(ulong_fixup);
return alternates.size() - start_size;
}
static void LoadLibCxxFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
if (!cpp_category_sp)
return;
TypeSummaryImpl::Flags stl_summary_flags;
stl_summary_flags.SetCascades(true)
.SetSkipPointers(false)
.SetSkipReferences(false)
.SetDontShowChildren(true)
.SetDontShowValue(true)
.SetShowMembersOneLiner(false)
.SetHideItemNames(false);
#ifndef LLDB_DISABLE_PYTHON
lldb::TypeSummaryImplSP std_string_summary_sp(new CXXFunctionSummaryFormat(
stl_summary_flags, lldb_private::formatters::LibcxxStringSummaryProvider,
"std::string summary provider"));
lldb::TypeSummaryImplSP std_wstring_summary_sp(new CXXFunctionSummaryFormat(
stl_summary_flags, lldb_private::formatters::LibcxxWStringSummaryProvider,
"std::wstring summary provider"));
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__1::string"), std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__ndk1::string"), std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__1::basic_string<char, std::__1::char_traits<char>, "
"std::__1::allocator<char> >"),
std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__ndk1::basic_string<char, "
"std::__ndk1::char_traits<char>, "
"std::__ndk1::allocator<char> >"),
std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__1::wstring"), std_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__ndk1::wstring"), std_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__1::basic_string<wchar_t, "
"std::__1::char_traits<wchar_t>, "
"std::__1::allocator<wchar_t> >"),
std_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__ndk1::basic_string<wchar_t, "
"std::__ndk1::char_traits<wchar_t>, "
"std::__ndk1::allocator<wchar_t> >"),
std_wstring_summary_sp);
SyntheticChildren::Flags stl_synth_flags;
stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(
false);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator,
"libc++ std::vector<bool> synthetic children",
ConstString(
"^std::__(ndk)?1::vector<bool, std::__(ndk)?1::allocator<bool> >$"),
stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator,
"libc++ std::vector synthetic children",
ConstString("^std::__(ndk)?1::vector<.+>(( )?&)?$"), stl_synth_flags,
true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator,
"libc++ std::list synthetic children",
ConstString("^std::__(ndk)?1::list<.+>(( )?&)?$"), stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
"libc++ std::map synthetic children",
ConstString("^std::__(ndk)?1::map<.+> >(( )?&)?$"), stl_synth_flags,
true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator,
"libc++ std::vector<bool> synthetic children",
ConstString("std::__(ndk)?1::vector<std::__(ndk)?1::allocator<bool> >"),
stl_synth_flags);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator,
"libc++ std::vector<bool> synthetic children",
ConstString(
"std::__(ndk)?1::vector<bool, std::__(ndk)?1::allocator<bool> >"),
stl_synth_flags);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
"libc++ std::set synthetic children",
ConstString("^std::__(ndk)?1::set<.+> >(( )?&)?$"), stl_synth_flags,
true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
"libc++ std::multiset synthetic children",
ConstString("^std::__(ndk)?1::multiset<.+> >(( )?&)?$"), stl_synth_flags,
true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
"libc++ std::multimap synthetic children",
ConstString("^std::__(ndk)?1::multimap<.+> >(( )?&)?$"), stl_synth_flags,
true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator,
"libc++ std::unordered containers synthetic children",
ConstString("^(std::__(ndk)?1::)unordered_(multi)?(map|set)<.+> >$"),
stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator,
"libc++ std::initializer_list synthetic children",
ConstString("^std::initializer_list<.+>(( )?&)?$"), stl_synth_flags,
true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxAtomicSyntheticFrontEndCreator,
"libc++ std::atomic synthetic children",
ConstString("^std::__(ndk)?1::atomic<.+>$"), stl_synth_flags, true);
cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
RegularExpressionSP(new RegularExpression(
llvm::StringRef("^(std::__(ndk)?1::)deque<.+>(( )?&)?$"))),
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_synth_flags,
"lldb.formatters.cpp.libcxx.stddeque_SynthProvider")));
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator,
"shared_ptr synthetic children",
ConstString("^(std::__(ndk)?1::)shared_ptr<.+>(( )?&)?$"),
stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator,
"weak_ptr synthetic children",
ConstString("^(std::__(ndk)?1::)weak_ptr<.+>(( )?&)?$"), stl_synth_flags,
true);
stl_summary_flags.SetDontShowChildren(false);
stl_summary_flags.SetSkipPointers(false);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::vector<bool> summary provider",
ConstString(
"std::__(ndk)?1::vector<bool, std::__(ndk)?1::allocator<bool> >"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::vector summary provider",
ConstString("^std::__(ndk)?1::vector<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::list summary provider",
ConstString("^std::__(ndk)?1::list<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::map summary provider",
ConstString("^std::__(ndk)?1::map<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::deque summary provider",
ConstString("^std::__(ndk)?1::deque<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::set summary provider",
ConstString("^std::__(ndk)?1::set<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::multiset summary provider",
ConstString("^std::__(ndk)?1::multiset<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::multimap summary provider",
ConstString("^std::__(ndk)?1::multimap<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::unordered containers summary provider",
ConstString("^(std::__(ndk)?1::)unordered_(multi)?(map|set)<.+> >$"),
stl_summary_flags, true);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::LibCxxAtomicSummaryProvider,
"libc++ std::atomic summary provider",
ConstString("^std::__(ndk)?1::atomic<.+>$"), stl_summary_flags, true);
stl_summary_flags.SetSkipPointers(true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxSmartPointerSummaryProvider,
"libc++ std::shared_ptr summary provider",
ConstString("^std::__(ndk)?1::shared_ptr<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibcxxSmartPointerSummaryProvider,
"libc++ std::weak_ptr summary provider",
ConstString("^std::__(ndk)?1::weak_ptr<.+>(( )?&)?$"),
stl_summary_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator,
"std::vector iterator synthetic children",
ConstString("^std::__(ndk)?1::__wrap_iter<.+>$"), stl_synth_flags, true);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider,
"libc++ std::vector<bool> summary provider",
ConstString(
"std::__(ndk)?1::vector<bool, std::__(ndk)?1::allocator<bool> >"),
stl_summary_flags);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator,
"std::map iterator synthetic children",
ConstString("^std::__(ndk)?1::__map_iterator<.+>$"), stl_synth_flags,
true);
AddCXXSynthetic(
cpp_category_sp, lldb_private::formatters::LibcxxFunctionFrontEndCreator,
"std::function synthetic value provider",
ConstString("^std::__1::function<.+>$"), stl_synth_flags, true);
#endif
}
static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
if (!cpp_category_sp)
return;
TypeSummaryImpl::Flags stl_summary_flags;
stl_summary_flags.SetCascades(true)
.SetSkipPointers(false)
.SetSkipReferences(false)
.SetDontShowChildren(true)
.SetDontShowValue(true)
.SetShowMembersOneLiner(false)
.SetHideItemNames(false);
lldb::TypeSummaryImplSP std_string_summary_sp(
new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p}"));
lldb::TypeSummaryImplSP cxx11_string_summary_sp(new CXXFunctionSummaryFormat(
stl_summary_flags, LibStdcppStringSummaryProvider,
"libstdc++ c++11 std::string summary provider"));
lldb::TypeSummaryImplSP cxx11_wstring_summary_sp(new CXXFunctionSummaryFormat(
stl_summary_flags, LibStdcppWStringSummaryProvider,
"libstdc++ c++11 std::wstring summary provider"));
cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::string"),
std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::basic_string<char>"), std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::basic_string<char,std::char_traits<char>,std::"
"allocator<char> >"),
std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::basic_string<char, std::char_traits<char>, "
"std::allocator<char> >"),
std_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__cxx11::string"), cxx11_string_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__cxx11::basic_string<char, std::char_traits<char>, "
"std::allocator<char> >"),
cxx11_string_summary_sp);
// making sure we force-pick the summary for printing wstring (_M_p is a
// wchar_t*)
lldb::TypeSummaryImplSP std_wstring_summary_sp(
new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p%S}"));
cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::wstring"),
std_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::basic_string<wchar_t>"), std_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::basic_string<wchar_t,std::char_traits<wchar_t>,std::"
"allocator<wchar_t> >"),
std_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::basic_string<wchar_t, std::char_traits<wchar_t>, "
"std::allocator<wchar_t> >"),
std_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__cxx11::wstring"), cxx11_wstring_summary_sp);
cpp_category_sp->GetTypeSummariesContainer()->Add(
ConstString("std::__cxx11::basic_string<wchar_t, "
"std::char_traits<wchar_t>, std::allocator<wchar_t> >"),
cxx11_wstring_summary_sp);
#ifndef LLDB_DISABLE_PYTHON
SyntheticChildren::Flags stl_synth_flags;
stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(
false);
cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
RegularExpressionSP(
new RegularExpression(llvm::StringRef("^std::vector<.+>(( )?&)?$"))),
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_synth_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider")));
cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
RegularExpressionSP(
new RegularExpression(llvm::StringRef("^std::map<.+> >(( )?&)?$"))),
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_synth_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdMapSynthProvider")));
cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
RegularExpressionSP(new RegularExpression(
llvm::StringRef("^std::(__cxx11::)?list<.+>(( )?&)?$"))),
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_synth_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider")));
stl_summary_flags.SetDontShowChildren(false);
stl_summary_flags.SetSkipPointers(true);
cpp_category_sp->GetRegexTypeSummariesContainer()->Add(
RegularExpressionSP(
new RegularExpression(llvm::StringRef("^std::vector<.+>(( )?&)?$"))),
TypeSummaryImplSP(
new StringSummaryFormat(stl_summary_flags, "size=${svar%#}")));
cpp_category_sp->GetRegexTypeSummariesContainer()->Add(
RegularExpressionSP(
new RegularExpression(llvm::StringRef("^std::map<.+> >(( )?&)?$"))),
TypeSummaryImplSP(
new StringSummaryFormat(stl_summary_flags, "size=${svar%#}")));
cpp_category_sp->GetRegexTypeSummariesContainer()->Add(
RegularExpressionSP(new RegularExpression(
llvm::StringRef("^std::(__cxx11::)?list<.+>(( )?&)?$"))),
TypeSummaryImplSP(
new StringSummaryFormat(stl_summary_flags, "size=${svar%#}")));
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator,
"std::vector iterator synthetic children",
ConstString("^__gnu_cxx::__normal_iterator<.+>$"), stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator,
"std::map iterator synthetic children",
ConstString("^std::_Rb_tree_iterator<.+>$"), stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibStdcppUniquePtrSyntheticFrontEndCreator,
"std::unique_ptr synthetic children",
ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator,
"std::shared_ptr synthetic children",
ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator,
"std::weak_ptr synthetic children",
ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
AddCXXSynthetic(
cpp_category_sp,
lldb_private::formatters::LibStdcppTupleSyntheticFrontEndCreator,
"std::tuple synthetic children", ConstString("^std::tuple<.+>(( )?&)?$"),
stl_synth_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibStdcppUniquePointerSummaryProvider,
"libstdc++ std::unique_ptr summary provider",
ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_summary_flags,
true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibStdcppSmartPointerSummaryProvider,
"libstdc++ std::shared_ptr summary provider",
ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_summary_flags,
true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::LibStdcppSmartPointerSummaryProvider,
"libstdc++ std::weak_ptr summary provider",
ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_summary_flags,
true);
#endif
}
static void LoadSystemFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
if (!cpp_category_sp)
return;
TypeSummaryImpl::Flags string_flags;
string_flags.SetCascades(true)
.SetSkipPointers(true)
.SetSkipReferences(false)
.SetDontShowChildren(true)
.SetDontShowValue(false)
.SetShowMembersOneLiner(false)
.SetHideItemNames(false);
TypeSummaryImpl::Flags string_array_flags;
string_array_flags.SetCascades(true)
.SetSkipPointers(true)
.SetSkipReferences(false)
.SetDontShowChildren(true)
.SetDontShowValue(true)
.SetShowMembersOneLiner(false)
.SetHideItemNames(false);
#ifndef LLDB_DISABLE_PYTHON
// FIXME because of a bug in the FormattersContainer we need to add a summary
// for both X* and const X* (<rdar://problem/12717717>)
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider,
"char16_t * summary provider", ConstString("char16_t *"), string_flags);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::Char16StringSummaryProvider,
"char16_t [] summary provider",
ConstString("char16_t \\[[0-9]+\\]"), string_array_flags, true);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char32StringSummaryProvider,
"char32_t * summary provider", ConstString("char32_t *"), string_flags);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::Char32StringSummaryProvider,
"char32_t [] summary provider",
ConstString("char32_t \\[[0-9]+\\]"), string_array_flags, true);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider,
"wchar_t * summary provider", ConstString("wchar_t *"), string_flags);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::WCharStringSummaryProvider,
"wchar_t * summary provider",
ConstString("wchar_t \\[[0-9]+\\]"), string_array_flags, true);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider,
"unichar * summary provider", ConstString("unichar *"), string_flags);
TypeSummaryImpl::Flags widechar_flags;
widechar_flags.SetDontShowValue(true)
.SetSkipPointers(true)
.SetSkipReferences(false)
.SetCascades(true)
.SetDontShowChildren(true)
.SetHideItemNames(true)
.SetShowMembersOneLiner(false);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char16SummaryProvider,
"char16_t summary provider", ConstString("char16_t"), widechar_flags);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char32SummaryProvider,
"char32_t summary provider", ConstString("char32_t"), widechar_flags);
AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharSummaryProvider,
"wchar_t summary provider", ConstString("wchar_t"),
widechar_flags);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::Char16SummaryProvider,
"unichar summary provider", ConstString("unichar"), widechar_flags);
#endif
}
std::unique_ptr<Language::TypeScavenger> CPlusPlusLanguage::GetTypeScavenger() {
class CPlusPlusTypeScavenger : public Language::ImageListTypeScavenger {
public:
virtual CompilerType AdjustForInclusion(CompilerType &candidate) override {
LanguageType lang_type(candidate.GetMinimumLanguage());
if (!Language::LanguageIsC(lang_type) &&
!Language::LanguageIsCPlusPlus(lang_type))
return CompilerType();
if (candidate.IsTypedefType())
return candidate.GetTypedefedType();
return candidate;
}
};
return std::unique_ptr<TypeScavenger>(new CPlusPlusTypeScavenger());
}
lldb::TypeCategoryImplSP CPlusPlusLanguage::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) {
LoadLibCxxFormatters(g_category);
LoadLibStdcppFormatters(g_category);
LoadSystemFormatters(g_category);
}
});
return g_category;
}
HardcodedFormatters::HardcodedSummaryFinder
CPlusPlusLanguage::GetHardcodedSummaries() {
static std::once_flag g_initialize;
static ConstString g_vectortypes("VectorTypes");
static HardcodedFormatters::HardcodedSummaryFinder g_formatters;
std::call_once(g_initialize, []() -> void {
g_formatters.push_back(
[](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
FormatManager &) -> TypeSummaryImpl::SharedPointer {
static CXXFunctionSummaryFormat::SharedPointer formatter_sp(
new CXXFunctionSummaryFormat(
TypeSummaryImpl::Flags(),
lldb_private::formatters::CXXFunctionPointerSummaryProvider,
"Function pointer summary provider"));
if (valobj.GetCompilerType().IsFunctionPointerType()) {
return formatter_sp;
}
return nullptr;
});
g_formatters.push_back(
[](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer {
static CXXFunctionSummaryFormat::SharedPointer formatter_sp(
new CXXFunctionSummaryFormat(
TypeSummaryImpl::Flags()
.SetCascades(true)
.SetDontShowChildren(true)
.SetHideItemNames(true)
.SetShowMembersOneLiner(true)
.SetSkipPointers(true)
.SetSkipReferences(false),
lldb_private::formatters::VectorTypeSummaryProvider,
"vector_type pointer summary provider"));
if (valobj.GetCompilerType().IsVectorType(nullptr, nullptr)) {
if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled())
return formatter_sp;
}
return nullptr;
});
g_formatters.push_back(
[](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer {
static CXXFunctionSummaryFormat::SharedPointer formatter_sp(
new CXXFunctionSummaryFormat(
TypeSummaryImpl::Flags()
.SetCascades(true)
.SetDontShowChildren(true)
.SetHideItemNames(true)
.SetShowMembersOneLiner(true)
.SetSkipPointers(true)
.SetSkipReferences(false),
lldb_private::formatters::BlockPointerSummaryProvider,
"block pointer summary provider"));
if (valobj.GetCompilerType().IsBlockPointerType(nullptr)) {
return formatter_sp;
}
return nullptr;
});
});
return g_formatters;
}
HardcodedFormatters::HardcodedSyntheticFinder
CPlusPlusLanguage::GetHardcodedSynthetics() {
static std::once_flag g_initialize;
static ConstString g_vectortypes("VectorTypes");
static HardcodedFormatters::HardcodedSyntheticFinder g_formatters;
std::call_once(g_initialize, []() -> void {
g_formatters.push_back([](lldb_private::ValueObject &valobj,
lldb::DynamicValueType,
FormatManager &
fmt_mgr) -> SyntheticChildren::SharedPointer {
static CXXSyntheticChildren::SharedPointer formatter_sp(
new CXXSyntheticChildren(
SyntheticChildren::Flags()
.SetCascades(true)
.SetSkipPointers(true)
.SetSkipReferences(true)
.SetNonCacheable(true),
"vector_type synthetic children",
lldb_private::formatters::VectorTypeSyntheticFrontEndCreator));
if (valobj.GetCompilerType().IsVectorType(nullptr, nullptr)) {
if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled())
return formatter_sp;
}
return nullptr;
});
g_formatters.push_back([](lldb_private::ValueObject &valobj,
lldb::DynamicValueType,
FormatManager &
fmt_mgr) -> SyntheticChildren::SharedPointer {
static CXXSyntheticChildren::SharedPointer formatter_sp(
new CXXSyntheticChildren(
SyntheticChildren::Flags()
.SetCascades(true)
.SetSkipPointers(true)
.SetSkipReferences(true)
.SetNonCacheable(true),
"block pointer synthetic children",
lldb_private::formatters::BlockPointerSyntheticFrontEndCreator));
if (valobj.GetCompilerType().IsBlockPointerType(nullptr)) {
return formatter_sp;
}
return nullptr;
});
});
return g_formatters;
}
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