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[LLDB] Add formatters for MSVC STL map-like types #148385

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Merged
Michael137 merged 2 commits into from
Jul 23, 2025
Merged

[LLDB] Add formatters for MSVC STL map-like types #148385

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4a4fba1
[LLDB] Add formatters for MSVC STL map-like types
Nerixyz Jul 12, 2025
b490bc0
fix: add "debug" to libstdc++ debug summary descriptions
Nerixyz Jul 23, 2025
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1 change: 1 addition & 0 deletions lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ add_lldb_library(lldbPluginCPlusPlusLanguage PLUGIN
MsvcStl.cpp
MsvcStlAtomic.cpp
MsvcStlSmartPointer.cpp
MsvcStlTree.cpp
MsvcStlTuple.cpp
MsvcStlUnordered.cpp
MsvcStlVariant.cpp
Expand Down
56 changes: 42 additions & 14 deletions lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
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Expand Up @@ -1409,7 +1409,7 @@ static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
stl_synth_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider")));
cpp_category_sp->AddTypeSynthetic(
"^std::(__debug::)?map<.+> >(( )?&)?$", eFormatterMatchRegex,
"^std::__debug::map<.+> >(( )?&)?$", eFormatterMatchRegex,
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_synth_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdMapLikeSynthProvider")));
Expand All @@ -1419,17 +1419,17 @@ static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
stl_deref_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdDequeSynthProvider")));
cpp_category_sp->AddTypeSynthetic(
"^std::(__debug::)?set<.+> >(( )?&)?$", eFormatterMatchRegex,
"^std::__debug::set<.+> >(( )?&)?$", eFormatterMatchRegex,
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_deref_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdMapLikeSynthProvider")));
cpp_category_sp->AddTypeSynthetic(
"^std::(__debug::)?multimap<.+> >(( )?&)?$", eFormatterMatchRegex,
"^std::__debug::multimap<.+> >(( )?&)?$", eFormatterMatchRegex,
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_deref_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdMapLikeSynthProvider")));
cpp_category_sp->AddTypeSynthetic(
"^std::(__debug::)?multiset<.+> >(( )?&)?$", eFormatterMatchRegex,
"^std::__debug::multiset<.+> >(( )?&)?$", eFormatterMatchRegex,
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_deref_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdMapLikeSynthProvider")));
Expand Down Expand Up @@ -1462,15 +1462,15 @@ static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
"libstdc++ std::__debug::vector summary provider",
"^std::__debug::vector<.+>(( )?&)?$", stl_summary_flags, true);

AddCXXSummary(
cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ std::map summary provider",
"^std::(__debug::)?map<.+> >(( )?&)?$", stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ std::map summary provider",
"^std::__debug::map<.+> >(( )?&)?$", stl_summary_flags, true);

AddCXXSummary(
cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ std::set summary provider",
"^std::(__debug::)?set<.+> >(( )?&)?$", stl_summary_flags, true);
AddCXXSummary(cpp_category_sp,
lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ std::set summary provider",
"^std::__debug::set<.+> >(( )?&)?$", stl_summary_flags, true);

AddCXXSummary(
cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
Expand All @@ -1480,12 +1480,12 @@ static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ std::multimap summary provider",
"^std::(__debug::)?multimap<.+> >(( )?&)?$", stl_summary_flags, true);
"^std::__debug::multimap<.+> >(( )?&)?$", stl_summary_flags, true);

AddCXXSummary(
cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ std::multiset summary provider",
"^std::(__debug::)?multiset<.+> >(( )?&)?$", stl_summary_flags, true);
"^std::__debug::multiset<.+> >(( )?&)?$", stl_summary_flags, true);

AddCXXSummary(cpp_category_sp,
lldb_private::formatters::ContainerSizeSummaryProvider,
Expand Down Expand Up @@ -1672,6 +1672,18 @@ GenericUnorderedSyntheticFrontEndCreator(CXXSyntheticChildren *children,
*valobj_sp);
}

static SyntheticChildrenFrontEnd *
GenericMapLikeSyntheticFrontEndCreator(CXXSyntheticChildren *children,
ValueObjectSP valobj_sp) {
if (!valobj_sp)
return nullptr;

if (IsMsvcStlMapLike(*valobj_sp))
return MsvcStlMapLikeSyntheticFrontEndCreator(valobj_sp);
return new ScriptedSyntheticChildren::FrontEnd(
"lldb.formatters.cpp.gnu_libstdcpp.StdMapLikeSynthProvider", *valobj_sp);
}

/// Load formatters that are formatting types from more than one STL
static void LoadCommonStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
if (!cpp_category_sp)
Expand Down Expand Up @@ -1749,6 +1761,10 @@ static void LoadCommonStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
AddCXXSynthetic(cpp_category_sp, GenericOptionalSyntheticFrontEndCreator,
"std::optional synthetic children",
"^std::optional<.+>(( )?&)?$", stl_deref_flags, true);
AddCXXSynthetic(cpp_category_sp, GenericMapLikeSyntheticFrontEndCreator,
"std::(multi)?map/set synthetic children",
"^std::(multi)?(map|set)<.+>(( )?&)?$", stl_synth_flags,
true);

AddCXXSummary(cpp_category_sp, GenericSmartPointerSummaryProvider,
"MSVC STL/libstdc++ std::shared_ptr summary provider",
Expand Down Expand Up @@ -1786,6 +1802,10 @@ static void LoadCommonStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
"MSVC STL/libstdc++ std unordered container summary provider",
"^std::unordered_(multi)?(map|set)<.+> ?>$", stl_summary_flags,
true);
AddCXXSummary(cpp_category_sp, ContainerSizeSummaryProvider,
"MSVC STL/libstdc++ std::(multi)?map/set summary provider",
"^std::(multi)?(map|set)<.+>(( )?&)?$", stl_summary_flags,
true);
}

static void LoadMsvcStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
Expand Down Expand Up @@ -1834,6 +1854,14 @@ static void LoadMsvcStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
AddCXXSummary(cpp_category_sp, MsvcStlAtomicSummaryProvider,
"MSVC STL std::atomic summary provider", "^std::atomic<.+>$",
stl_summary_flags, true);
AddCXXSynthetic(cpp_category_sp, MsvcStlTreeIterSyntheticFrontEndCreator,
"MSVC STL tree iterator synthetic children",
"^std::_Tree(_const)?_iterator<.+>(( )?&)?$", stl_synth_flags,
true);
AddCXXSummary(cpp_category_sp, MsvcStlTreeIterSummaryProvider,
"MSVC STL tree iterator summary",
"^std::_Tree(_const)?_iterator<.+>(( )?&)?$", stl_summary_flags,
true);
}

static void LoadSystemFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
Expand Down
11 changes: 11 additions & 0 deletions lldb/source/Plugins/Language/CPlusPlus/MsvcStl.h
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Expand Up @@ -91,6 +91,17 @@ bool IsMsvcStlUnordered(ValueObject &valobj);
SyntheticChildrenFrontEnd *
MsvcStlUnorderedSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP valobj_sp);
bool IsMsvcStlTreeIter(ValueObject &valobj);
bool MsvcStlTreeIterSummaryProvider(ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options);
lldb_private::SyntheticChildrenFrontEnd *
MsvcStlTreeIterSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP valobj_sp);

// std::map,set,multimap,multiset
bool IsMsvcStlMapLike(ValueObject &valobj);
lldb_private::SyntheticChildrenFrontEnd *
MsvcStlMapLikeSyntheticFrontEndCreator(lldb::ValueObjectSP valobj_sp);

} // namespace formatters
} // namespace lldb_private
Expand Down
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