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This commit handles the following types:
- clang::ExternalASTSource
- clang::TargetInfo
- clang::ASTContext
- clang::SourceManager
- clang::FileManager
Part of cleanup #151026
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ExternalASTSources (#104799)
When we use `SemaSourceWithPriorities` as the `ASTContext`s
ExternalASTSource, we allocate a `ClangASTSourceProxy` (via
`CreateProxy`) and two `ExternalASTSourceWrapper`. Then we push these
sources into a vector in `SemaSourceWithPriorities`. The allocated
`SemaSourceWithPriorities` itself will get properly deallocated because
the `ASTContext` wraps it in an `IntrusiveRefCntPtr`. But the three
sources we allocated earlier will never get released.
This patch fixes this by mimicking what `MultiplexExternalSemaSource`
does (which is what `SemaSourceWithPriorities` is based on anyway).
I.e., when `SemaSourceWithPriorities` gets constructed, it increments
the use count of its sources. And on destruction it decrements them.
Similarly, to make sure we dealloacted the `ClangASTProxy` properly, the
`ExternalASTSourceWrapper` now assumes shared ownership of the
underlying source.
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Replace default bodies of special member functions with = default;
$ run-clang-tidy.py -header-filter='lldb' -checks='-*,modernize-use-equals-default' -fix ,
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-equals-default.html
Differential revision: https://reviews.llvm.org/D104041
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Summary:
A *.cpp file header in LLDB (and in LLDB) should like this:
```
//===-- TestUtilities.cpp -------------------------------------------------===//
```
However in LLDB most of our source files have arbitrary changes to this format and
these changes are spreading through LLDB as folks usually just use the existing
source files as templates for their new files (most notably the unnecessary
editor language indicator `-*- C++ -*-` is spreading and in every review
someone is pointing out that this is wrong, resulting in people pointing out that this
is done in the same way in other files).
This patch removes most of these inconsistencies including the editor language indicators,
all the different missing/additional '-' characters, files that center the file name, missing
trailing `===//` (mostly caused by clang-format breaking the line).
Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere
Reviewed By: JDevlieghere
Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D73258
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Summary:
This patch is the MVP version of importing the std module into the expression parser to improve C++ debugging.
What happens in this patch is that we inject a `@import std` into our expression source code. We also
modify our internal Clang instance for parsing this expression to work with modules and debug info
at the same time (which is the main change in terms of LOC). We implicitly build the `std` module on the first use. The
C++ include paths for building are extracted from the debug info, which means that this currently only
works if the program is compiled with `-glldb -fmodules` and uses the std module. The C include paths
are currently specified by LLDB.
I enabled the tests currently only for libc++ and Linux because I could test this locally. I'll enable the tests
for other platforms once this has landed and doesn't break any bots (and I implemented the platform-specific
C include paths for them).
With this patch we can now:
* Build a libc++ as a module and import it into the expression parser.
* Read from the module while also referencing declarations from the debug info. E.g. `std::abs(local_variable)`.
What doesn't work (yet):
* Merging debug info and C++ module declarations. E.g. `std::vector<CustomClass>` doesn't work.
* Pretty much anything that involves the ASTImporter and templated code. As the ASTImporter is used for saving the result declaration, this means that we can't
call yet any function that returns a non-trivial type.
* Use libstdc++ for this, as it requires multiple include paths and Clang only emits one include path per module. Also libstdc++ doesn't support Clang modules without patches.
Reviewers: aprantl, jingham, shafik, friss, davide, serge-sans-paille
Reviewed By: aprantl
Subscribers: labath, mgorny, abidh, jdoerfert, lldb-commits
Tags: #c_modules_in_lldb, #lldb
Differential Revision: https://reviews.llvm.org/D58125
llvm-svn: 355939
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