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path: root/lib/Frontend/ASTUnit.cpp
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2011-08-04Add a new libclang API to return a CXCompletionString for an arbitraryDouglas Gregor
cursor, from Connor Wakamo! Addresses <rdar://problem/9087798>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30When performing code completion after at @interface, allow bothDouglas Gregor
already-defined and forward-declared results. Already-defined results are fine because they could be the start of a category. Fixes <rdar://problem/9811691>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136559 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Cut down the number of open/close system calls for output files.Argyrios Kyrtzidis
For PCH files, have only one open/close for temporary + rename to be safe from race conditions. For all other output files open/close the output file directly. Depends on llvm r136310. rdar://9082880 & http://llvm.org/PR9374. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136315 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26This patch extends the previous patch by starting to incorporate more ↵Jonathan D. Turner
functionality, like lookup-by-name and exporting lookup tables, into the module manager. Methods now have documentation. A few more functions have been switched over to the new iterator style and away from manual/explicit iteration. Ultimately we want to move away from name lookup here, as symlinks make filenames not a safe unique value, but we use it here as a stopgap before better measures are in place (namely instead using FileEntry* from a global FileManager). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136107 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Remove prepending of '$' to module names.Jonathan D. Turner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135775 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Switch all of the "isysroot" const char*'s throughout the AST readerDouglas Gregor
and writer to StringRef or std::string, as appropriate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135769 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Rename ASTReader::PerFileData to serialization::Module, pulling it outDouglas Gregor
of ASTReader so it can become its own full-fledged class (eventually). No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135767 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21For ASTUnit::Save, write the AST to a temporary and then rename it to the ↵Argyrios Kyrtzidis
actual filename. Should avoid race conditions. Addresses rdar://9788943. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135691 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21Cut down one open/close pair of system calls by using Path's makeUnique ↵Argyrios Kyrtzidis
instead of createTemporaryFileOnDisk. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135690 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21Rework the detailed preprocessing record to separate preprocessingDouglas Gregor
entities generated directly by the preprocessor from those loaded from the external source (e.g., the ASTReader). By separating these two sets of entities into different vectors, we allow both to grow independently, and eliminate the need for preallocating all of the loaded preprocessing entities. This is similar to the way the recent SourceManager refactoring treats FileIDs and the source location address space. As part of this, switch over to building a continuous range map to track preprocessing entities. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135646 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-19Revamp the SourceManager to separate the representation of parsedDouglas Gregor
source locations from source locations loaded from an AST/PCH file. Previously, loading an AST/PCH file involved carefully pre-allocating space at the beginning of the source manager for the source locations and FileIDs that correspond to the prefix, and then appending the source locations/FileIDs used for parsing the remaining translation unit. This design forced us into loading PCH files early, as a prefix, whic has become a rather significant limitation. This patch splits the SourceManager space into two parts: for source location "addresses", the lower values (growing upward) are used to describe parsed code, while upper values (growing downward) are used for source locations loaded from AST/PCH files. Similarly, positive FileIDs are used to describe parsed code while negative FileIDs are used to file/macro locations loaded from AST/PCH files. As a result, we can load PCH/AST files even during parsing, making various improvemnts in the future possible, e.g., teaching #include <foo.h> to look for and load <foo.h.gch> if it happens to be already available. This patch was originally written by Sebastian Redl, then brought forward to the modern age by Jonathan Turner, and finally polished/finished by me to be committed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135484 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18Migrate LLVM and Clang to use the new makeArrayRef(...) functions where ↵Frits van Bommel
previously explicit non-default constructors were used. Mostly mechanical with some manual reformatting. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135390 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14NestedMacroInstantiations -> NestedMacroExpansionsChandler Carruth
This is switches all the interfaces points (and most of the commenst / local variables I saw on my way through) regarding the NestedMacroInstantiations bit. The libclang enums corresponding to this state were renamed, but a legacy enum was added with the old name, and the same value to keep existing clients working. I've added a documentation blurb for it, but let me know if there is a canonical way to document legacy elemenst of the libclang interface. No functionality changed here, even in tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135141 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07Introduce a new libclang aPI function,Douglas Gregor
clang_codeCompleteGetContexts(), that provides the client with information about the context in which code completion has occurred and what kinds of entities make sense as completions at that point. Patch by Connor Wakamo! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Keep track of when "unrecoverable" errors occur, then allowDouglas Gregor
clang_saveTranslationUnit() to save a PCH file if the only errors it contains are recoverable errors. Fixes <rdar://problem/9727804>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134503 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06libclang: Allow callers of clang_saveTranslationUnit() to distinguishDouglas Gregor
between different classes of errors. Addresses most of <rdar://problem/9660328>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134495 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01When we create a precompiled preamble, don't copy theDouglas Gregor
CompilerInvocation on the stack, because other objects (e.g., the CompilerInstance) maintain an intrusive reference-counted pointer to the CompilerInvocation. This doesn't matter in the normal case, because we take back the CompilerInvocation. However, during crash recovery, this leads to us trying to free an object on the stack, and hilarity ensues. Fixes <rdar://problem/9652540>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134245 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06Introduce a new libclang parsing flag,Douglas Gregor
CXTranslationUnit_NestedMacroInstantiations, which indicates whether we want to see "nested" macro instantiations (e.g., those that occur inside other macro instantiations) within the detailed preprocessing record. Many clients (e.g., those that only care about visible tokens) don't care about this information, and in code that uses preprocessor metaprogramming, this information can have a very high cost. Addresses <rdar://problem/9389320>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130990 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04ASTUnit::LoadFromASTFile(): recover the resources from an ASTReader if it ↵Ted Kremenek
crashes during PCH validation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130886 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-03Introduce ASTUnit::LoadFromCompilerInvocationAction that allows one to ↵Argyrios Kyrtzidis
create an ASTUnit from a CompilerInvocation along with an ASTFrontendAction to invoke, and without all the goo about the precompiled preamble. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130805 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-04Move Driver::createInvocationFromArgs function to Frontend library to avoid ↵Argyrios Kyrtzidis
dependency cycle between libFrontend and libDriver. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-04Introduce Driver::createInvocationFromArgs used to create a ↵Argyrios Kyrtzidis
CompilerInvocation from command-line args. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128848 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23switch a few Driver APIs to use llvm::ArrayRef, cleaning up code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128142 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23std::vector::data() is not portable to VS. Use a gross hack instead.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Rework crash recovery cleanup in ASTUnit and CIndex to recover more memory ↵Ted Kremenek
during a Sema crash (we have just a handful of leaks left) and to use the simplified cleanup registration API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21Improve crash recovery cleanup to recovery CompilerInstances during crash ↵Ted Kremenek
recovery. This was a huge resource "root" during crashes. This change requires making a bunch of fundamental Clang structures (optionally) reference counted to allow correct ownership semantics of these objects (e.g., ASTContext) to play out between an active ASTUnit and CompilerInstance object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128011 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21Use CrashRecoveryContextCleanup objects to reclaim resources from ↵Ted Kremenek
CompilerInstance objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128009 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Use the newly added FileManager::getNoncachedStatValue when trying to ↵Anders Carlsson
determine if any files in the preamble have changed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127894 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Correctly store and keep track of the FileSystemOptions in ASTUnit and in ↵Anders Carlsson
clang_codeCompleteAt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127890 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Use CrashRecoveryContextCleanup objects to recover an ASTUnit if we crash in ↵Ted Kremenek
ASTUnit::LoadFromCommandLine() and ASTUnit::LoadFromCompilerInvocation(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127851 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09Introduce '-chain-include' option to specify headers that will be converted ↵Argyrios Kyrtzidis
to chained PCHs in memory without having to use multiple runs and intermediate files. Intended for testing & debugging of chained PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Add 'OverridenFilesKeepOriginalName' field in SourceManager which if true ↵Argyrios Kyrtzidis
the SourceManager should report the original file name for contents of files that were overriden by other files, otherwise it should report the name of the new file. Default is true. Also add similar field in PreprocessorOptions and pass similar parameter in ASTUnit::LoadFromCommandLine. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127289 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07Allow passing '-###' to ASTUnit::LoadFromCommandLine to print out the cc1 ↵Argyrios Kyrtzidis
options. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127183 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Currently we can only remap a file by creating a MemoryBuffer and replacing ↵Argyrios Kyrtzidis
the file contents with it. Allow remapping a file by specifying another filename whose contents should be loaded if the original file gets loaded. This allows to override files without having to create & load buffers in advance. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127052 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Introduce OwnsRemappedFileBuffers field in ASTUnit, indicating whether the ↵Argyrios Kyrtzidis
ASTUnit should delete the remapped buffers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127051 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23Preserve what the user passed to -include when emitting .d files. Fixes PR8974!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126334 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18When code-completing a case statement for a switch on a value ofDouglas Gregor
enumeration type, prioritize the enumeration constants and don't provide completions for any other expressions. Fixes <rdar://problem/7283668>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125991 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Teach the CXCodeCompleteResults results structure, which storesDouglas Gregor
code-completion results accessed via libclang, to extend the lifetime of the allocator used for cached global code-completion results at least until these completion results are destroyed. Fixes <rdar://problem/8997369>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125678 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Improve the invalidation logic for the cache of global codeDouglas Gregor
completions. We now compute a hash of the names of all top-level declarations and macro definitions, and invalidate the cache when the hash value changes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125670 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Allow resolving headers from a PCH even after headers+PCH were moved to ↵Argyrios Kyrtzidis
another path. Store in PCH the directory that the PCH was originally created in. If a header file is not found at the path that we expect it to be and the PCH file was moved from its original location, try to resolve the file by assuming that header+PCH were moved together and the header is in the same place relative to the PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Rename the operation that loads a preprocessed entity from a given offset to ↵Douglas Gregor
indicate that we're loading from an offset, not an index, lest one be confused. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125394 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Improve our uniquing of file entries when files are re-saved or areDouglas Gregor
overridden via remapping. Thus, when we create a "virtual" file in the file manager, we still stat() the real file that lives behind it so that we can provide proper uniquing based on inodes. This helps keep the file manager much more consistent. To take advantage of this when reparsing files in libclang, we disable the use of the stat() cache when reparsing or performing code completion, since the stat() cache is very likely to be out of date in this use case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-01Create a special allocator class for code completion, so that all ofDouglas Gregor
the string copying goes through a single place that can have associated state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124698 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-01Allocate CodeCompletionString and all of its components in aDouglas Gregor
BumpPtrAllocator, rather than manually new/delete'ing them. This optimization also allows us to avoid allocating memory for and copying constant strings (e.g., "return", "class"). This also required embedding the priority and availability of results within the code completion string, to avoid extra memory allocation within libclang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124673 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Teach ASTUnit to save the specified target features, sinceDouglas Gregor
TargetInfo::CreateTargetInfo() mangles the target options in a way that is not idempotent. Fixes <rdar://problem/8807535>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124382 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19Don't silently drop warning flags passed in toDouglas Gregor
clang_createTranslationUnitFromSourceFile(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09Gather cached code completions after the first reparse, not after theDouglas Gregor
second reparse. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Use atomic operations for libclang's object count tracking.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121073 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30When using a precompiled preamble with detailed preprocessing records,Douglas Gregor
trap the serialized preprocessing records (macro definitions, macro instantiations, macro definitions) from the generation of the precompiled preamble, then replay those when walking the list of preprocessed entities. This eliminates a bug where clang_getCursor() wasn't able to find preprocessed-entity cursors in the preamble. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120396 91177308-0d34-0410-b5e6-96231b3b80d8
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