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* ASTReader: Bypass overridden files when reading PCHsDuncan P. N. Exon Smith2019-08-301-10/+12
| | | | | | | | | | | | | | | | | | | | | If contents of a file that is part of a PCM are overridden when reading it, but weren't overridden when the PCM was being built, the ASTReader will emit an error. Now it creates a separate FileEntry for recovery, bypassing the overridden content instead of discarding it. The pre-existing testcase clang/test/PCH/remap-file-from-pch.cpp confirms that the new recovery method works correctly. This resolves a long-standing FIXME to avoid hypothetically invalidating another precompiled module that's already using the overridden contents. This also removes ContentCache-related API that would be unsafe to use across `CompilerInstance`s in an implicit modules build. This helps to unblock us sinking it from SourceManager into FileManager in the future, which would allow us to delete `InMemoryModuleCache`. https://reviews.llvm.org/D66710 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@370546 91177308-0d34-0410-b5e6-96231b3b80d8
* ContentCache: Drop getBuffer's dependency on SourceManagerDuncan P. N. Exon Smith2019-08-261-13/+11
| | | | | | | | | | | | | Refactor ContentCache::IsSystemFile to IsFileVolatile, checking SourceManager::userFilesAreVolatile at construction time. This is a step toward lowering ContentCache down from SourceManager to FileManager. No functionality change intended. https://reviews.llvm.org/D66713 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@369958 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce FileEntryRef and use it when handling includes to report correct ↵Alex Lorenz2019-08-221-10/+9
| | | | | | | | | | | | | | | | | | | | | | | dependencies when the FileManager is reused across invocations This commit introduces a parallel API to FileManager's getFile: getFileEntryRef, which returns a reference to the FileEntry, and the name that was used to access the file. In the case of a VFS with 'use-external-names', the FileEntyRef contains the external name of the file, not the filename that was used to access it. The new API is adopted only in the HeaderSearch and Preprocessor for include file lookup, so that the accessed path can be propagated to SourceManager's FileInfo. SourceManager's FileInfo now can report this accessed path, using the new getName method. This API is then adopted in the dependency collector, which now correctly reports dependencies when a file is included both using a symlink and a real path in the case when the FileManager is reused across multiple Preprocessor invocations. Note that this patch does not fix all dependency collector issues, as the same problem is still present in other cases when dependencies are obtained using FileSkipped, InclusionDirective, and HasInclude. This will be fixed in follow-up commits. Differential Revision: https://reviews.llvm.org/D65907 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@369680 91177308-0d34-0410-b5e6-96231b3b80d8
* NFCI: Simplify SourceManager::translateFile by removing code path that ↵Alex Lorenz2019-08-211-107/+21
| | | | | | | | | | | | | | | should never be taken I noticed that SourceManager::translateFile has code that doesn't really make sense. In particular, if it fails to find a FileID by comparing FileEntry * values, it tries to look through files that have the same filename, to see if they have a matching inode to try to find the right FileID. However, the inode comparison seem redundant, as Clang's FileManager already deduplicates FileEntry * values by inode. Thus the comparisons between inodes should never actually succeed, and the comparison between FileEntry * values should be sufficient here. Differential Revision: https://reviews.llvm.org/D65481 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@369585 91177308-0d34-0410-b5e6-96231b3b80d8
* [Clang] Migrate llvm::make_unique to std::make_uniqueJonas Devlieghere2019-08-141-5/+5
| | | | | | | | | | 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 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@368942 91177308-0d34-0410-b5e6-96231b3b80d8
* [clang] Adopt new FileManager error-returning APIsHarlan Haskins2019-08-011-1/+1
| | | | | | | | Update the callers of FileManager::getFile and FileManager::getDirectory to handle the new llvm::ErrorOr-returning methods. Signed-off-by: Harlan Haskins <harlan@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@367616 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a unique_ptr instead of manual memory management for LineTableNico Weber2019-07-151-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@366088 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix MSVC "signed/unsigned mismatch" warning. NFCI.Simon Pilgrim2019-07-031-1/+2
| | | | | | Fixes PR42426. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@365019 91177308-0d34-0410-b5e6-96231b3b80d8
* Change std::{lower,upper}_bound to llvm::{lower,upper}_bound or ↵Fangrui Song2019-07-031-3/+3
| | | | | | llvm::partition_point. NFC git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@365006 91177308-0d34-0410-b5e6-96231b3b80d8
* PR42301: Abort cleanly if we encounter a huge source file rather thanRichard Smith2019-06-211-0/+25
| | | | | | | | | | crashing. Ideally we wouldn't care about the size of a file so long as it fits in memory, but in practice we have lots of hardocded assumptions that unsigned can be used to index files, string literals, and so on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@364103 91177308-0d34-0410-b5e6-96231b3b80d8
* [DebugInfo] Don't emit checksums when compiling a preprocessed CPPAlexandre Ganea2019-05-211-2/+7
| | | | | | | | Fixes PR41215 Differential Revision: https://reviews.llvm.org/D60283 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@361296 91177308-0d34-0410-b5e6-96231b3b80d8
* [Preamble] Stop circular inclusion of main file when building preambleNikolai Kosjar2019-05-101-1/+1
| | | | | | | | | | | | | | | | | If a header file was processed for the second time, we could end up with a wrong conditional stack and skipped ranges: In the particular example, if the header guard is evaluated the second time and it is decided to skip the conditional block, the corresponding "#endif" is never seen since the preamble does not include it and we end up in the Tok.is(tok::eof) case with a wrong conditional stack. Detect the circular inclusion, emit a diagnostic and stop processing the inclusion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@360418 91177308-0d34-0410-b5e6-96231b3b80d8
* [clang] Fix a bug that reports UTF32 (LE) files as UTF16 (LE) onesOwen Pan2019-05-081-3/+3
| | | | | | | | Also fix a typo for the SCSU byte order mark. Differential Revision: https://reviews.llvm.org/D61628 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@360256 91177308-0d34-0410-b5e6-96231b3b80d8
* Make SourceManager::createFileID(UnownedTag, ...) take a const ↵Nico Weber2019-04-041-15/+17
| | | | | | | | | | | | | | | | | | | | | llvm::MemoryBuffer* Requires making the llvm::MemoryBuffer* stored by SourceManager const, which in turn requires making the accessors for that return const llvm::MemoryBuffer*s and updating all call sites. The original motivation for this was to use it and fix the TODO in CodeGenAction.cpp's ConvertBackendLocation() by using the UnownedTag version of createFileID, and since llvm::SourceMgr* hands out a const llvm::MemoryBuffer* this is required. I'm not sure if fixing the TODO this way actually works, but this seems like a good change on its own anyways. No intended behavior change. Differential Revision: https://reviews.llvm.org/D60247 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@357724 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
* ComputeLineNumbers: delete SSE2 vectorizationFangrui Song2018-12-101-56/+13
| | | | | | | | | | | | | | | | | | | | | | | Summary: SSE2 vectorization was added in 2012, but it is 2018 now and I can't observe any performance boost (testing clang -E [all Sema/* CodeGen/* with proper -I options]) with the existing _mm_movemask_epi8+countTrailingZeros or the following SSE4.2 (compiling with -msse4.2): __m128i C = _mm_setr_epi8('\r','\n',0,0,0,0,0,0,0,0,0,0,0,0,0,0); _mm_cmpestri(C, 2, Chunk, 16, _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_POSITIVE_POLARITY | _SIDD_LEAST_SIGNIFICANT) Delete the vectorization to simplify the code. Also simplify the code a bit and don't check the line ending sequence \n\r Reviewers: bkramer, #clang Reviewed By: bkramer Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D55484 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@348777 91177308-0d34-0410-b5e6-96231b3b80d8
* SourceManager: insert(make_pair(..)) -> try_emplace. NFCFangrui Song2018-12-091-5/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@348709 91177308-0d34-0410-b5e6-96231b3b80d8
* Lift VFS from clang to llvm (NFC)Jonas Devlieghere2018-10-101-2/+2
| | | | | | | | | | | | | | | | | | | This patch moves the virtual file system form clang to llvm so it can be used by more projects. Concretely the patch: - Moves VirtualFileSystem.{h|cpp} from clang/Basic to llvm/Support. - Moves the corresponding unit test from clang to llvm. - Moves the vfs namespace from clang::vfs to llvm::vfs. - Formats the lines affected by this change, mostly this is the result of the added llvm namespace. RFC on the mailing list: http://lists.llvm.org/pipermail/llvm-dev/2018-October/126657.html Differential revision: https://reviews.llvm.org/D52783 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@344140 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing spaceFangrui Song2018-07-301-32/+32
| | | | | | sed -Ei 's/[[:space:]]+$//' include/**/*.{def,h,td} lib/**/*.{cpp,h} git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338291 91177308-0d34-0410-b5e6-96231b3b80d8
* Add SourceManagerForFile helper which sets up SourceManager and dependencies ↵Eric Liu2018-05-091-0/+26
| | | | | | | | | | | | | | | | for a single file with code snippet Summary: This can be used to create a virtual environment (incl. VFS, source manager) for code snippets. Reviewers: sammccall, klimek Reviewed By: sammccall Subscribers: klimek, mgorny, cfe-commits Differential Revision: https://reviews.llvm.org/D46176 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331923 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove \brief commands from doxygen comments.Adrian Prantl2018-05-091-17/+17
| | | | | | | | | | | | | | | | | | | This is similar to the LLVM change https://reviews.llvm.org/D46290. We've been running doxygen with the autobrief option for a couple of years now. This makes the \brief markers into our comments redundant. Since they are a visual distraction and we don't want to encourage more \brief markers in new code either, this patch removes them all. Patch produced by for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done Differential Revision: https://reviews.llvm.org/D46320 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331834 91177308-0d34-0410-b5e6-96231b3b80d8
* PR37189 Fix incorrect end source location and spelling for a split '>>' token.Richard Smith2018-04-301-13/+26
| | | | | | | | | | | | | | | | | | | When a '>>' token is split into two '>' tokens (in C++11 onwards), or (as an extension) when we do the same for other tokens starting with a '>', we can't just use a location pointing to the first '>' as the location of the split token, because that would result in our miscomputing the length and spelling for the token. As a consequence, for example, a refactoring replacing 'A<X>' with something else would sometimes replace one character too many, and similarly diagnostics highlighting a template-id source range would highlight one character too many. Fix this by creating an expansion range covering the first character of the '>>' token, whose spelling is '>'. For this to work, we generalize the expansion range of a macro FileID to be either a token range (the common case) or a character range (used in this new case). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331155 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typos in clangAlexander Kornienko2018-04-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Found via codespell -q 3 -I ../clang-whitelist.txt Where whitelist consists of: archtype cas classs checkk compres definit frome iff inteval ith lod methode nd optin ot pres statics te thru Patch by luzpaz! (This is a subset of D44188 that applies cleanly with a few files that have dubious fixes reverted.) Differential revision: https://reviews.llvm.org/D44188 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@329399 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for LLVM r326109David Zarzycki2018-02-261-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@326110 91177308-0d34-0410-b5e6-96231b3b80d8
* [NFC] Extract method to SourceManager for traversing the macro "stack"George Karpenkov2018-02-091-0/+6
| | | | | | | | | | | | The code for going up the macro arg expansion is duplicated in many places (and we need it for the analyzer as well, so I did not want to duplicate it two more times). This patch is an NFC, so the semantics should remain the same. Differential Revision: https://reviews.llvm.org/D42458 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@324780 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove llvm::MemoryBuffer const_castsPavel Labath2017-12-201-3/+4
| | | | | | | | | | | | | | | Summary: llvm has grown a WritableMemoryBuffer class, which is convertible (inherits from) a MemoryBuffer. We can use it to avoid conts_casting the buffer contents when we want to write to it. Reviewers: dblaikie, rsmith Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D41387 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321167 91177308-0d34-0410-b5e6-96231b3b80d8
* [Basic] Fix some Clang-tidy modernize and Include What You Use warnings; ↵Eugene Zelenko2017-11-031-25/+30
| | | | | | other minor fixes (NFC). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317381 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix ownership of the MemoryBuffer in a FrontendInputFile.Richard Smith2017-09-091-5/+6
| | | | | | | | | This fixes a possible crash on certain kinds of corrupted AST file, but checking in an AST file corrupted in just the right way will be a maintenance nightmare because the format changes frequently. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312851 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out a functionality from isBeforeInTranslationUnitGabor Horvath2017-06-291-37/+48
| | | | | | | | | | | The first user of this API will be the cross translation unit functionality of the Static Analyzer which will be committed in a follow-up patch. Differential Revision: https://reviews.llvm.org/D34506 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306648 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some redundant setup when preprocessing .pcm files.Richard Smith2017-06-261-9/+0
| | | | | | | Both of these steps are immediately overwritten by the FrontendAction setup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306325 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix memory leak exposed by r304726.Richard Smith2017-06-051-5/+7
| | | | | | | | | When giving a ContentCache a null buffer, ignore the DoNotFree flag rather than inheriting it onto whatever buffer we end up using for the file. Also ensure that the main buffer is properly destroyed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@304740 91177308-0d34-0410-b5e6-96231b3b80d8
* Rather than rejecting attempts to run preprocessor-only actions on AST files,Richard Smith2017-06-051-0/+35
| | | | | | | | | | | replay the steps taken to create the AST file with the preprocessor-only action installed to produce preprocessed output. This can be used to produce the preprocessed text for an existing .pch or .pcm file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@304726 91177308-0d34-0410-b5e6-96231b3b80d8
* Give files from #line the characteristics of the current fileReid Kleckner2017-05-221-77/+16
| | | | | | | | | | This allows #line directives to appear in system headers that have code that clang would normally warn on. This is compatible with GCC, which is easy to test by running `gcc -E`. Fixes PR30752 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@303582 91177308-0d34-0410-b5e6-96231b3b80d8
* [Basic] getColumnNumber returns location of CR+LF on WindowsChih-Hung Hsieh2017-04-061-2/+11
| | | | | | | | | | | | | | When fixing a Clang-Tidy bug in D31406, reuse of FileID enabled the missing highlightRange function. Assertion in highlightRange failed because the end-of-range column number was 2 + the last column of a line on Windows. This fix is required to enable D31406. Differential Revision: https://reviews.llvm.org/D31713 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@299681 91177308-0d34-0410-b5e6-96231b3b80d8
* Drop a redundant ".get()" call (NFC)Vedant Kumar2016-10-181-1/+1
| | | | | | Pointed out by Malcolm Parsons. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@284510 91177308-0d34-0410-b5e6-96231b3b80d8
* [Basic] unique_ptr-ify SourceManager::MacroArgsCacheMap (NFC)Vedant Kumar2016-10-181-9/+6
| | | | | | Differential Revision: https://reviews.llvm.org/D25711 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@284442 91177308-0d34-0410-b5e6-96231b3b80d8
* Use StringRef for MemoryBuffer identifier API (NFC)Mehdi Amini2016-10-011-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@283043 91177308-0d34-0410-b5e6-96231b3b80d8
* [NFC] Header cleanupMehdi Amini2016-07-181-1/+0
| | | | | | | | | | Summary: Removed unused headers, replaced some headers with forward class declarations Patch by: Eugene <claprix@yandex.ru> Differential Revision: https://reviews.llvm.org/D20100 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@275882 91177308-0d34-0410-b5e6-96231b3b80d8
* One more fix for use of invalid PresumedLocs missed by r267914.Richard Smith2016-04-281-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@267926 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix use of uninitialized value exposed by r267802. Accessors of an invalidRichard Smith2016-04-281-3/+5
| | | | | | | PresumedLoc should not be called. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@267914 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove use of builtin comma operator.Richard Trieu2016-02-181-4/+8
| | | | | | | Cleanup for upcoming Clang warning -Wcomma. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261271 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix isBeforeInTranslationUnit to not abort on macros defined in cmdline.Yury Gribov2016-01-281-0/+8
| | | | | | | Differential Revision: http://reviews.llvm.org/D15804 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259031 91177308-0d34-0410-b5e6-96231b3b80d8
* Small refactor in isBeforeInTranslationUnit.Yury Gribov2016-01-281-6/+6
| | | | | | | Differential Revision: http://reviews.llvm.org/D15804 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259030 91177308-0d34-0410-b5e6-96231b3b80d8
* [analyzer] Fix IssueHash generation.Gabor Horvath2015-12-011-1/+1
| | | | | | | | | Differential Revision: http://reviews.llvm.org/D14919 Original patch by: Gyorgy Orban! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@254394 91177308-0d34-0410-b5e6-96231b3b80d8
* [modules] Refactor handling of -fmodules-embed-*. Track this properly ratherRichard Smith2015-11-261-5/+3
| | | | | | | | than reusing the "overridden buffer" mechanism. This will allow us to make embedded files and overridden files behave differently in future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@254121 91177308-0d34-0410-b5e6-96231b3b80d8
* [modules] Add -cc1 flag -fmodules-embed-all-files.Richard Smith2015-11-241-1/+2
| | | | | | | | | | | | | | | This flag causes all files that were read by the compilation to be embedded into a produced module file. This is useful for distributed build systems that use an include scanning system to determine which files are "needed" by a compilation, and only provide those files to remote compilation workers. Since using a module can require any file that is part of that module (or anything it transitively includes), files that are not found by an include scanner can be required in a regular build using explicit modules. With this flag, only files that are actually referenced by transitively-#included files are required to be present on the build machine. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@253950 91177308-0d34-0410-b5e6-96231b3b80d8
* [Basic] Fix DRY violation, just call getLineTable() (NFC)Vedant Kumar2015-11-121-8/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@252828 91177308-0d34-0410-b5e6-96231b3b80d8
* Roll-back r250822.Angel Garcia Gomez2015-10-201-1/+1
| | | | | | | | | | Summary: It breaks the build for the ASTMatchers Subscribers: klimek, cfe-commits Differential Revision: http://reviews.llvm.org/D13893 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@250827 91177308-0d34-0410-b5e6-96231b3b80d8
* Apply modernize-use-default to clang.Angel Garcia Gomez2015-10-201-1/+1
| | | | | | | | | | | | Summary: Replace empty bodies of default constructors and destructors with '= default'. Reviewers: bkramer, klimek Subscribers: klimek, alexfh, cfe-commits Differential Revision: http://reviews.llvm.org/D13890 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@250822 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace double negation of !FileID.isInvalid() with FileID.isValid().Yaron Keren2015-10-031-3/+3
| | | | | | | | +couple more of double-negated !SourceLocation.isInvalid() unfixed in r249228. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@249235 91177308-0d34-0410-b5e6-96231b3b80d8
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