[PATCH] D135170: [LLDB] Fix crash when printing a struct with a static signed char member
David Spickett via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Tue Oct 4 09:01:30 PDT 2022
DavidSpickett created this revision.
Herald added a project: All.
DavidSpickett requested review of this revision.
Herald added projects: clang, LLDB.
Herald added subscribers: lldb-commits, cfe-commits.
As with static bool for whatever reason printing them on their own
worked fine but wasn't handled when you printed the whole type.
I don't see a good way to test this from clang's side so our existing
tests will have to do.
We can now print all of the struct "A", so there's no need for a separate
one for static bool testing. I've not checked the output, just that it
succeeds. This saves us having to handle different min/max between systems.
Depends on D135169 <https://reviews.llvm.org/D135169>
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D135170
Files:
clang/lib/AST/StmtPrinter.cpp
lldb/test/API/lang/cpp/const_static_integral_member/TestConstStaticIntegralMember.py
lldb/test/API/lang/cpp/const_static_integral_member/main.cpp
Index: lldb/test/API/lang/cpp/const_static_integral_member/main.cpp
===================================================================
--- lldb/test/API/lang/cpp/const_static_integral_member/main.cpp
+++ lldb/test/API/lang/cpp/const_static_integral_member/main.cpp
@@ -79,13 +79,8 @@
ScopedEnum::scoped_enum_case1;
};
-struct StaticBoolStruct {
- static const bool value = false;
-};
-
int main() {
A a;
- StaticBoolStruct sbs;
auto char_max = A::char_max;
auto uchar_max = A::uchar_max;
Index: lldb/test/API/lang/cpp/const_static_integral_member/TestConstStaticIntegralMember.py
===================================================================
--- lldb/test/API/lang/cpp/const_static_integral_member/TestConstStaticIntegralMember.py
+++ lldb/test/API/lang/cpp/const_static_integral_member/TestConstStaticIntegralMember.py
@@ -32,11 +32,6 @@
# Test a bool member.
self.expect_expr("A::bool_val", result_value="true")
- # Test a bool member when printing the struct it is a member of.
- # TODO: replace this with printing struct A, once doing so doesn't crash lldb.
- self.expect("image lookup -t StaticBoolStruct",
- substrs=["static const bool value = false;"])
-
# Test that minimum and maximum values for each data type are right.
self.expect_expr("A::char_max == char_max", result_value="true")
self.expect_expr("A::uchar_max == uchar_max", result_value="true")
@@ -88,6 +83,10 @@
self.expect_expr("const int *i = &A::int_val_with_address; *i",
result_value="2")
+ # Printing the whole type takes a slightly different code path. Check that
+ # it does not crash.
+ self.expect("image lookup -t A")
+
# dsymutil strips the debug info for classes that only have const static
# data members without a definition namespace scope.
@expectedFailureAll(debug_info=["dsym"])
Index: clang/lib/AST/StmtPrinter.cpp
===================================================================
--- clang/lib/AST/StmtPrinter.cpp
+++ clang/lib/AST/StmtPrinter.cpp
@@ -1280,6 +1280,7 @@
case BuiltinType::Char_S:
case BuiltinType::Char_U: OS << "i8"; break;
case BuiltinType::UChar: OS << "Ui8"; break;
+ case BuiltinType::SChar: OS << "i8"; break;
case BuiltinType::Short: OS << "i16"; break;
case BuiltinType::UShort: OS << "Ui16"; break;
case BuiltinType::Int: break; // no suffix.
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