3 Commits

Author SHA1 Message Date
jeffreytan81
25909b811a
Fix pointer to reference type (#113596)
We have got customer reporting "v &obj" and "p &obj" reporting different
results.
Turns out it only happens for obj that is itself a reference type which
"v &obj" reports the address of the reference itself instead of the
target object the reference points to. This diverged from C++ semantics.

This PR fixes this issue by returning the address of the dereferenced
object if it is reference type.

A new test is added which fails before.

Co-authored-by: jeffreytan81 <jeffreytan@fb.com>
2024-10-24 17:13:32 -07:00
Andy Yankovsky
95102b7dc3 [lldb] Unwrap the type when dereferencing the value
The value type can be a typedef of a reference (e.g. `typedef int& myint`).
In this case `GetQualType(type)` will return `clang::Typedef`, which cannot
be casted to `clang::ReferenceType`.

Fix a regression introduced in https://reviews.llvm.org/D103532.

Reviewed By: teemperor

Differential Revision: https://reviews.llvm.org/D113673
2021-11-15 14:48:19 +01:00
Raphael Isemann
0ec761c3fc [lldb] Preserve type sugar when using SBValue::Dereference on C++ references
When checking for type properties we usually want to strip all kind of type
sugar from the type. For example, sugar like Clang's ElaboratedType or typedefs
rarely influence the fundamental behaviour of a type such as its byte size.

However we always need to preserve type sugar for everything else as it does
matter for users that their variable of type `size_t` instead of `unsigned long`
for example.

This patch fixes one such bug when trying to use the SBValue API to dereference
a type.

Reviewed By: werat, shafik

Differential Revision: https://reviews.llvm.org/D103532
2021-06-02 19:23:11 +02:00