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[LLDB] Add formatters for MSVC STL std::(forward_)list #148285

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Merged
merged 3 commits into from
Jul 16, 2025
Merged

[LLDB] Add formatters for MSVC STL std::(forward_)list #148285

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a341b83
[LLDB] Add formatters for MSVC STL std::(forward_)list
Nerixyz Jul 11, 2025
ad0a1ec
fix: mention that it's a debug summary
Nerixyz Jul 15, 2025
56f5d6b
fix: use libstdc++ summary for forward list
Nerixyz Jul 15, 2025
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2 changes: 1 addition & 1 deletion lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -14,11 +14,11 @@ add_lldb_library(lldbPluginCPlusPlusLanguage PLUGIN
CxxStringTypes.cpp
Generic.cpp
GenericBitset.cpp
GenericList.cpp
GenericOptional.cpp
LibCxx.cpp
LibCxxAtomic.cpp
LibCxxInitializerList.cpp
LibCxxList.cpp
LibCxxMap.cpp
LibCxxQueue.cpp
LibCxxRangesRefView.cpp
Expand Down
57 changes: 46 additions & 11 deletions lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1440,14 +1440,12 @@ static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
stl_deref_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdUnorderedMapSynthProvider")));
cpp_category_sp->AddTypeSynthetic(
"^std::((__debug::)?|(__cxx11::)?)list<.+>(( )?&)?$",
eFormatterMatchRegex,
"^std::__(debug|cxx11)::list<.+>(( )?&)?$", eFormatterMatchRegex,
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_deref_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider")));
cpp_category_sp->AddTypeSynthetic(
"^std::((__debug::)?|(__cxx11::)?)forward_list<.+>(( )?&)?$",
eFormatterMatchRegex,
"^std::__(debug|cxx11)::forward_list<.+>(( )?&)?$", eFormatterMatchRegex,
SyntheticChildrenSP(new ScriptedSyntheticChildren(
stl_synth_flags,
"lldb.formatters.cpp.gnu_libstdcpp.StdForwardListSynthProvider")));
Expand Down Expand Up @@ -1501,15 +1499,13 @@ static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
"^std::(__debug::)?unordered_(multi)?(map|set)<.+> >$",
stl_summary_flags, true);

AddCXXSummary(cpp_category_sp,
lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ std::list summary provider",
"^std::((__debug::)?|(__cxx11::)?)list<.+>(( )?&)?$",
stl_summary_flags, true);
AddCXXSummary(
cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
"libstdc++ debug std::list summary provider",
"^std::__(debug|cxx11)::list<.+>(( )?&)?$", stl_summary_flags, true);

cpp_category_sp->AddTypeSummary(
"^std::((__debug::)?|(__cxx11::)?)forward_list<.+>(( )?&)?$",
eFormatterMatchRegex,
"^std::__(debug|cxx11)::forward_list<.+>(( )?&)?$", eFormatterMatchRegex,
TypeSummaryImplSP(new ScriptSummaryFormat(
stl_summary_flags,
"lldb.formatters.cpp.gnu_libstdcpp.ForwardListSummaryProvider")));
Expand Down Expand Up @@ -1627,6 +1623,31 @@ GenericVectorSyntheticFrontEndCreator(CXXSyntheticChildren *children,
"lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider", *valobj_sp);
}

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

if (IsMsvcStlList(*valobj_sp))
return MsvcStlListSyntheticFrontEndCreator(children, valobj_sp);
return new ScriptedSyntheticChildren::FrontEnd(
"lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider", *valobj_sp);
}

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

if (IsMsvcStlList(*valobj_sp))
return MsvcStlForwardListSyntheticFrontEndCreator(children, valobj_sp);
return new ScriptedSyntheticChildren::FrontEnd(
"lldb.formatters.cpp.gnu_libstdcpp.StdForwardListSynthProvider",
*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 @@ -1685,6 +1706,12 @@ static void LoadCommonStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
AddCXXSynthetic(cpp_category_sp, GenericTupleSyntheticFrontEndCreator,
"std::tuple synthetic children", "^std::tuple<.*>(( )?&)?$",
stl_synth_flags, true);
AddCXXSynthetic(cpp_category_sp, GenericListSyntheticFrontEndCreator,
"std::list synthetic children", "^std::list<.+>(( )?&)?$",
stl_synth_flags, true);
AddCXXSynthetic(cpp_category_sp, GenericForwardListSyntheticFrontEndCreator,
"std::forward_list synthetic children",
"^std::forward_list<.+>(( )?&)?$", stl_synth_flags, true);

AddCXXSummary(cpp_category_sp, GenericSmartPointerSummaryProvider,
"MSVC STL/libstdc++ std::shared_ptr summary provider",
Expand All @@ -1704,6 +1731,14 @@ static void LoadCommonStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
AddCXXSynthetic(cpp_category_sp, GenericVectorSyntheticFrontEndCreator,
"MSVC/libstdc++ std::vector synthetic provider",
"^std::vector<.+>(( )?&)?$", stl_synth_flags, true);
AddCXXSummary(cpp_category_sp, ContainerSizeSummaryProvider,
"MSVC STL/libstdc++ std::list summary provider",
"^std::list<.+>(( )?&)?$", stl_summary_flags, true);
cpp_category_sp->AddTypeSummary(
"^std::forward_list<.+>(( )?&)?$", eFormatterMatchRegex,
TypeSummaryImplSP(new ScriptSummaryFormat(
stl_summary_flags,
"lldb.formatters.cpp.gnu_libstdcpp.ForwardListSummaryProvider")));
}

static void LoadMsvcStlFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
Expand Down
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