https://github.com/cmtice updated
https://github.com/llvm/llvm-project/pull/138487
>From 780371cf111c97e2bce5f030625ff557bb2f40b6 Mon Sep 17 00:00:00 2001
From: Caroline Tice <cmt...@google.com>
Date: Sun, 4 May 2025 23:43:28 -0700
Subject: [PATCH 1/2] [LLDB] Fix GetIndexOfChildMemberWithName to handle
anonymous structs.
When handling anonymous structs, GetIndexOfChildMemberWithName needs
to add the number of non-empty base classes to the child index, to get
the actual correct index. It was not doing so. This fixes that.
---
.../TypeSystem/Clang/TypeSystemClang.cpp | 9 ++++-
.../lang/cpp/type_lookup_anon_struct/Makefile | 3 ++
.../TestCppTypeLookupAnonStruct.py | 27 +++++++++++++++
.../lang/cpp/type_lookup_anon_struct/main.cpp | 33 +++++++++++++++++++
4 files changed, 71 insertions(+), 1 deletion(-)
create mode 100644 lldb/test/API/lang/cpp/type_lookup_anon_struct/Makefile
create mode 100644
lldb/test/API/lang/cpp/type_lookup_anon_struct/TestCppTypeLookupAnonStruct.py
create mode 100644 lldb/test/API/lang/cpp/type_lookup_anon_struct/main.cpp
diff --git a/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
b/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
index 1a2b3d4133e51..dd8d144510056 100644
--- a/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
+++ b/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
@@ -6743,7 +6743,14 @@ size_t TypeSystemClang::GetIndexOfChildMemberWithName(
if (field_name.empty()) {
CompilerType field_type = GetType(field->getType());
std::vector<uint32_t> save_indices = child_indexes;
- child_indexes.push_back(child_idx);
+ if (field_type.IsAnonymousType())
+ // We have to add on the number of non-empty base classes to this
+ // index!
+ child_indexes.push_back(
+ child_idx +
+ TypeSystemClang::GetNumBaseClasses(cxx_record_decl, true));
+ else
+ child_indexes.push_back(child_idx);
if (field_type.GetIndexOfChildMemberWithName(
name, omit_empty_base_classes, child_indexes))
return child_indexes.size();
diff --git a/lldb/test/API/lang/cpp/type_lookup_anon_struct/Makefile
b/lldb/test/API/lang/cpp/type_lookup_anon_struct/Makefile
new file mode 100644
index 0000000000000..99998b20bcb05
--- /dev/null
+++ b/lldb/test/API/lang/cpp/type_lookup_anon_struct/Makefile
@@ -0,0 +1,3 @@
+CXX_SOURCES := main.cpp
+
+include Makefile.rules
diff --git
a/lldb/test/API/lang/cpp/type_lookup_anon_struct/TestCppTypeLookupAnonStruct.py
b/lldb/test/API/lang/cpp/type_lookup_anon_struct/TestCppTypeLookupAnonStruct.py
new file mode 100644
index 0000000000000..2295ecfe81ff7
--- /dev/null
+++
b/lldb/test/API/lang/cpp/type_lookup_anon_struct/TestCppTypeLookupAnonStruct.py
@@ -0,0 +1,27 @@
+"""
+Test that we properly print multiple types.
+"""
+
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import decorators
+
+
+class TestTypeLookupAnonStruct(TestBase):
+ def test_lookup_anon_struct(self):
+ self.build()
+ lldbutil.run_to_source_breakpoint(
+ self, '// Set breakpoint here', lldb.SBFileSpec('main.cpp')
+ )
+
+ self.expect_var_path('unnamed_derived.y', value='2')
+ self.expect_var_path('unnamed_derived.z', value='13')
+ self.expect('frame variable "derb.x"', error=True,
+ substrs=['"x" is not a member of "(DerivedB) derb"'])
+ self.expect('frame variable "derb.y"', error=True,
+ substrs=['"y" is not a member of "(DerivedB) derb"'])
+ self.expect_var_path('derb.w', value='14')
+ self.expect_var_path('derb.k', value='15')
+ self.expect_var_path('derb.a.x', value='1')
+ self.expect_var_path('derb.a.y', value='2')
diff --git a/lldb/test/API/lang/cpp/type_lookup_anon_struct/main.cpp
b/lldb/test/API/lang/cpp/type_lookup_anon_struct/main.cpp
new file mode 100644
index 0000000000000..18dd997ea9563
--- /dev/null
+++ b/lldb/test/API/lang/cpp/type_lookup_anon_struct/main.cpp
@@ -0,0 +1,33 @@
+int main(int argc, char** argv) {
+ struct A {
+ struct {
+ int x = 1;
+ };
+ int y = 2;
+ } a;
+
+ struct B {
+ // Anonymous struct inherits another struct.
+ struct : public A {
+ int z = 3;
+ };
+ int w = 4;
+ A a;
+ } b;
+
+ struct : public A {
+ struct {
+ int z = 13;
+ };
+ } unnamed_derived;
+
+ struct DerivedB : public B {
+ struct {
+ // `w` in anonymous struct overrides `w` from `B`.
+ int w = 14;
+ int k = 15;
+ };
+ } derb;
+
+ return 0; // Set breakpoint here
+}
>From 81870ff46edc647695720d5635e700e77c7ca620 Mon Sep 17 00:00:00 2001
From: Caroline Tice <cmt...@google.com>
Date: Mon, 5 May 2025 21:45:50 -0700
Subject: [PATCH 2/2] Update to always add the number of base classes (not just
for anonymous structs). Remove hard-codimg for omitting empty base classes.
---
.../Plugins/TypeSystem/Clang/TypeSystemClang.cpp | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
b/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
index dd8d144510056..71d4385447624 100644
--- a/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
+++ b/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
@@ -6743,14 +6743,11 @@ size_t TypeSystemClang::GetIndexOfChildMemberWithName(
if (field_name.empty()) {
CompilerType field_type = GetType(field->getType());
std::vector<uint32_t> save_indices = child_indexes;
- if (field_type.IsAnonymousType())
- // We have to add on the number of non-empty base classes to this
- // index!
- child_indexes.push_back(
- child_idx +
- TypeSystemClang::GetNumBaseClasses(cxx_record_decl, true));
- else
- child_indexes.push_back(child_idx);
+ // We have to add on the number of non-empty base classes to this
+ // index!
+ child_indexes.push_back(
+ child_idx + TypeSystemClang::GetNumBaseClasses(
+ cxx_record_decl, omit_empty_base_classes));
if (field_type.GetIndexOfChildMemberWithName(
name, omit_empty_base_classes, child_indexes))
return child_indexes.size();
_______________________________________________
lldb-commits mailing list
lldb-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
