Reapply "[NFC] Explicitly pass a VFS when creating DiagnosticsEngine (#115852)"

This reverts commit a1153cd6fedd4c906a9840987934ca4712e34cb2 with fixes
to lldb breakages.

Fixes https://github.com/l

Reapply "[NFC] Explicitly pass a VFS when creating DiagnosticsEngine (#115852)"

This reverts commit a1153cd6fedd4c906a9840987934ca4712e34cb2 with fixes
to lldb breakages.

Fixes https://github.com/llvm/llvm-project/issues/117145.

show more ...

Revert "[NFC] Explicitly pass a VFS when creating DiagnosticsEngine (#115852)"

Reverted for causing:
https://github.com/llvm/llvm-project/issues/117145

This reverts commit bdd10d9d249bd1c2a45e3de56

Revert "[NFC] Explicitly pass a VFS when creating DiagnosticsEngine (#115852)"

Reverted for causing:
https://github.com/llvm/llvm-project/issues/117145

This reverts commit bdd10d9d249bd1c2a45e3de56a5accd97e953458.

show more ...

[NFC] Explicitly pass a VFS when creating DiagnosticsEngine (#115852)

Starting with 41e3919ded78d8870f7c95e9181c7f7e29aa3cc4 DiagnosticsEngine
creation might perform IO. It was implicitly defaultin

[NFC] Explicitly pass a VFS when creating DiagnosticsEngine (#115852)

Starting with 41e3919ded78d8870f7c95e9181c7f7e29aa3cc4 DiagnosticsEngine
creation might perform IO. It was implicitly defaulting to
getRealFileSystem. This patch makes it explicit by pushing the decision
making to callers.

It uses ambient VFS if one is available, and keeps using
`getRealFileSystem` if there aren't any VFS.

show more ...

[clang][lex] Always pass suggested module to `InclusionDirective()` callback (#81061)

This patch provides more information to the
`PPCallbacks::InclusionDirective()` hook. We now always pass the
s

[clang][lex] Always pass suggested module to `InclusionDirective()` callback (#81061)

This patch provides more information to the
`PPCallbacks::InclusionDirective()` hook. We now always pass the
suggested module, regardless of whether it was actually imported or not.
The extra `bool ModuleImported` parameter then denotes whether the
header `#include` will be automatically translated into import the the
module.

The main change is in `clang/lib/Lex/PPDirectives.cpp`, where we take
care to not modify `SuggestedModule` after it's been populated by
`LookupHeaderIncludeOrImport()`. We now exclusively use the `SM`
(`ModuleToImport`) variable instead, which has been equivalent to
`SuggestedModule` until now. This allows us to use the original
non-modified `SuggestedModule` for the callback itself.

(This patch turns out to be necessary for
https://github.com/apple/llvm-project/pull/8011).

show more ...

[clang] NFCI: Use `FileEntryRef` in `ASTReader::GetHeaderFileInfo()`

This is the `ASTReader` counterpart to PR #67383.

[clang] NFCI: Change returned LanguageOptions pointer to reference

[clang][index] NFCI: Make `CXFile` a `FileEntryRef`

This patch swaps out the `void *` behind `CXFile` from `FileEntry *` to `FileEntryRef::MapEntry *`. This allows us to remove some deprecated uses

[clang][index] NFCI: Make `CXFile` a `FileEntryRef`

This patch swaps out the `void *` behind `CXFile` from `FileEntry *` to `FileEntryRef::MapEntry *`. This allows us to remove some deprecated uses of `FileEntry::getName()`.

Depends on D151854.

Reviewed By: benlangmuir

Differential Revision: https://reviews.llvm.org/D151938

show more ...

[clang][deps] Make clang-scan-deps write modules in raw format

We have no use for debug info for the scanner modules, and writing raw
ast files speeds up scanning ~15% in some cases. Note that the c

[clang][deps] Make clang-scan-deps write modules in raw format

We have no use for debug info for the scanner modules, and writing raw
ast files speeds up scanning ~15% in some cases. Note that the compile
commands produced by the scanner will still build the obj format (if
requested), and the scanner can *read* obj format pcms, e.g. from a PCH.

rdar://108807592

Differential Revision: https://reviews.llvm.org/D149693

show more ...

Move from llvm::makeArrayRef to ArrayRef deduction guides - clang/ part

This is a follow-up to https://reviews.llvm.org/D140896, split into
several parts as it touches a lot of files.

Differential

Move from llvm::makeArrayRef to ArrayRef deduction guides - clang/ part

This is a follow-up to https://reviews.llvm.org/D140896, split into
several parts as it touches a lot of files.

Differential Revision: https://reviews.llvm.org/D141139

show more ...

[Clang] Prepare for llvm::Optional becoming std::optional.

The needed tweaks are mostly trivial, the one nasty bit is Clang's usage
of OptionalStorage. To keep this working old Optional stays around

[Clang] Prepare for llvm::Optional becoming std::optional.

The needed tweaks are mostly trivial, the one nasty bit is Clang's usage
of OptionalStorage. To keep this working old Optional stays around as
clang::CustomizableOptional, with the default Storage removed.
Optional<File/DirectoryEntryRef> is replaced with a typedef.

I tested this with GCC 7.5, the oldest supported GCC I had around.

Differential Revision: https://reviews.llvm.org/D140332

show more ...

Revert "[clang] Convert OptionalFileEntryRefDegradesToFileEntryPtr to std::optional"

This reverts commit 8f0df9f3bbc6d7f3d5cbfd955c5ee4404c53a75d.

The Optional*RefDegradesTo*EntryPtr types want to

Revert "[clang] Convert OptionalFileEntryRefDegradesToFileEntryPtr to std::optional"

This reverts commit 8f0df9f3bbc6d7f3d5cbfd955c5ee4404c53a75d.

The Optional*RefDegradesTo*EntryPtr types want to keep the same size as
the underlying type, which std::optional doesn't guarantee. For use with
llvm::Optional, they define their own storage class, and there is no way
to do that in std::optional.

On top of that, that commit broke builds with older GCCs, where
std::optional was not trivially copyable (static_assert in the clang
sources was failing).

show more ...

[clang] Convert OptionalFileEntryRefDegradesToFileEntryPtr to std::optional

[Frontend] Flip default of CreateInvocationOptions::ProbePrecompiled to false

This is generally a better default for tools other than the compiler, which
shouldn't assume a PCH file on disk is somet

[Frontend] Flip default of CreateInvocationOptions::ProbePrecompiled to false

This is generally a better default for tools other than the compiler, which
shouldn't assume a PCH file on disk is something they can consume.

Preserve the old behavior in places associated with libclang/c-index-test
(including ASTUnit) as there are tests relying on it and most important
consumers are out-of-tree. It's unclear whether the tests are specifically
trying to test this functionality, and what the downstream implications of
removing it are. Hopefully someone more familiar can clean this up in future.

Differential Revision: https://reviews.llvm.org/D125149

show more ...

[clang] createInvocationFromCommandLine -> createInvocation, delete former. NFC

(Followup from 40c13720a4b977d4347bbde53c52a4d0703823c2)

Differential Revision: https://reviews.llvm.org/D125012

[clang][lex] NFCI: Use FileEntryRef in PPCallbacks::InclusionDirective()

This patch changes type of the `File` parameter in `PPCallbacks::InclusionDirective()` from `const FileEntry *` to `Optional<

[clang][lex] NFCI: Use FileEntryRef in PPCallbacks::InclusionDirective()

This patch changes type of the `File` parameter in `PPCallbacks::InclusionDirective()` from `const FileEntry *` to `Optional<FileEntryRef>`.

With the API change in place, this patch then removes some uses of the deprecated `FileEntry::getName()` (e.g. in `DependencyGraph.cpp` and `ModuleDependencyCollector.cpp`).

Reviewed By: dexonsmith, bnbarham

Differential Revision: https://reviews.llvm.org/D123574

show more ...

Frontend: Remove unused parameter from ASTUnit::LoadFromCompilerInvocationAction, NFC

Drop `IncludeBriefCommentsInCodeCompletion` since it is always `false`.

Differential Revision: https://reviews.

Frontend: Remove unused parameter from ASTUnit::LoadFromCompilerInvocationAction, NFC

Drop `IncludeBriefCommentsInCodeCompletion` since it is always `false`.

Differential Revision: https://reviews.llvm.org/D91295

show more ...

Improve diagnostics for missing import / #include of module.

Fix a few bugs where we would fail to properly determine header to
module correspondence when determining whether to suggest a #include o

Improve diagnostics for missing import / #include of module.

Fix a few bugs where we would fail to properly determine header to
module correspondence when determining whether to suggest a #include or
import, and suggest a #include more often in language modes where there
is no import syntax. Generally, if the target is in a header with
include guards or #pragma once, we should suggest either #including or
importing that header, and not importing a module that happens to
textually include it.

In passing, improve the notes we attach to the corresponding
diagnostics: calling an entity that we couldn't see "previous" is
confusing.

show more ...

Make llvm::StringRef to std::string conversions explicit.

This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly m

Make llvm::StringRef to std::string conversions explicit.

This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.

This doesn't actually modify StringRef yet, I'll do that in a follow-up.

show more ...

[libclang] Refactored SharedParsedRegionsStorage

Summary:
Removed the `PPRegionSetTy` typedef because it is only used 3 times, and
obscures code more than it helps.

Renamed SharedParsedRegionsStora

[libclang] Refactored SharedParsedRegionsStorage

Summary:
Removed the `PPRegionSetTy` typedef because it is only used 3 times, and
obscures code more than it helps.

Renamed SharedParsedRegionsStorage to ThreadSafeParsedRegions, because
that better reflects the reason for this type to exist.

Replaced the `copyTo()` method that had an out parameter with a getter.

Renamed the `merge()` method to `addParsedRegions()`.

Renamed `ParsedSrcLocationsTracker::ParsedRegions` to
`ParsedRegionsSnapshot`, which better reflects its role.

Subscribers: arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67077

llvm-svn: 371041

show more ...

[Index] Added a ShouldSkipFunctionBody callback to libIndex, and refactored clients to use it instead of inventing their own solution

Subscribers: jkorous, arphaman, kadircet, cfe-commits

Tags: #cl

[Index] Added a ShouldSkipFunctionBody callback to libIndex, and refactored clients to use it instead of inventing their own solution

Subscribers: jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66879

llvm-svn: 370338

show more ...

[Index] Stopped wrapping FrontendActions in libIndex and its users

Exposed a new function, createIndexingASTConsumer, that creates an
ASTConsumer. ASTConsumers compose well.

Removed wrapping functi

[Index] Stopped wrapping FrontendActions in libIndex and its users

Exposed a new function, createIndexingASTConsumer, that creates an
ASTConsumer. ASTConsumers compose well.

Removed wrapping functionality from createIndexingAction.

llvm-svn: 370337

show more ...

[libclang][index][NFCi] Refactor machinery for skipping function bodies

Refactor machinery for skipping inline function bodies that have already
been parsed in other frontend actions.

Preparations

[libclang][index][NFCi] Refactor machinery for skipping function bodies

Refactor machinery for skipping inline function bodies that have already
been parsed in other frontend actions.

Preparations for moving this code to libIndex.

Differential Revision: https://reviews.llvm.org/D66694

llvm-svn: 369931

show more ...

[libclang][NFC] Remove debug comment

llvm-svn: 369714

[Clang] Migrate llvm::make_unique to std::make_unique

Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
o

[Clang] Migrate llvm::make_unique to std::make_unique

Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

Differential revision: https://reviews.llvm.org/D66259

llvm-svn: 368942

show more ...

Replace non-recursive sys::Mutex users with std::mutex

Also remove a use of sys::MutexImpl, that's just evil. No functionality
change intended.

llvm-svn: 368157