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path: root/clang/lib/Frontend/FrontendAction.cpp
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2013-02-05[frontend] Don't put a PCH/PTH filename into the set of includes in the ↵Argyrios Kyrtzidis1-10/+2
preprocessor options; since only one of them is allowed in command-line, process them separately. Otherwise, if more than one is specified in the command-line, one is processed normally and the others are going to be treated and included as header files. Related to radar://13140508 llvm-svn: 174385
2013-01-25Rename the -cc1 option "-generate-module-index" toDouglas Gregor1-4/+3
"-fmodules-global-index" and expand its behavior to include both the use and generation of the global module index. llvm-svn: 173404
2013-01-23Implement the writer side of the global module index. Douglas Gregor1-0/+11
The global module index is a "global" index for all of the module files within a particular subdirectory in the module cache, which keeps track of all of the "interesting" identifiers and selectors known in each of the module files. One can perform a fast lookup in the index to determine which module files will have more information about entities with a particular name/selector. This information can help eliminate redundant lookups into module files (a serious performance problem) and help with creating auto-import/auto-include Fix-Its. The global module index is created or updated at the end of a translation unit that has triggered a (re)build of a module by scraping all of the .pcm files out of the module cache subdirectory, so it catches everything. As with module rebuilds, we use the file system's atomicity to synchronize. llvm-svn: 173301
2013-01-23Documentation cleanup: fixing documentation for FrontendAction.James Dennett1-3/+3
* Fix a typo, s/BeginSourceAction/BeginSourceFile/, so that the documentation for FrontendAction::BeginSourceFileAction links correctly to BeginSourceFile; * Add some basic \file documentation for FrontendAction.h; * More use of "\brief" instead of repeating the name of the entity being documented; * Stop using Doxygen-style "///" comments in FrontendAction.cpp, as they were polluting the documentation for BeginSourceFile; * Drop incorrect "\see" markup that broke Doxygen's formatting; * Other minor documentation fixes. llvm-svn: 173213
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth1-3/+3
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. llvm-svn: 169237
2012-11-09Turn FrontendInputFile into an immutable class and have it also acceptArgyrios Kyrtzidis1-9/+10
a memory buffer instead of only a filename. llvm-svn: 167627
2012-11-09Make CompilerInstance::InitializeSourceManager accept a FrontendInputFile,Argyrios Kyrtzidis1-4/+1
no functionality change. llvm-svn: 167626
2012-10-31[PCH] Remove the stat cache from the PCH file.Argyrios Kyrtzidis1-1/+0
The stat cache became essentially useless ever since we started validating all file entries in the PCH. But the motivating reason for removing it now is that it also affected correctness in this situation: -You have a header without include guards (using "#pragma once" or #import) -When creating the PCH: -The same header is referenced in an #include with different filename cases. -In the PCH, of course, we record only one file entry for the header file -But we cache in the PCH file the stat info for both filename cases -Then the source files are updated and the header file is updated in a way that its size and modification time are the same but its inode changes -When using the PCH: -We validate the headers, we check that header file and we create a file entry with its current inode -There's another #include with a filename with different case than the previously created file entry -In order to get its stat info we go through the cached stat info of the PCH and we receive the old inode -because of the different inodes, we think they are different files so we go ahead and include its contents. Removing the stat cache will potentially break clients that are attempting to use the stat cache as a way of avoiding having the actual input files available. If that use case is important, patches are welcome to bring it back in a way that will actually work correctly (i.e., emit a PCH that is self-contained, coping with literal strings, line/column computations, etc.). This fixes rdar://5502805 llvm-svn: 167172
2012-10-24Teach the PCH validator to check the preprocessor options, especiallyDouglas Gregor1-1/+2
the macros that are #define'd or #undef'd on the command line. This checking happens much earlier than the current macro-definition checking and is far cleaner, because it does a direct comparison rather than a diff of the predefines buffers. Moreover, it allows us to use the result of this check to skip over PCH files within a directory that have non-matching -D's or -U's on the command line. Finally, it improves the diagnostics a bit for mismatches, fixing <rdar://problem/8612222>. The old predefines-buffer diff'ing will go away in a subsequent commit. llvm-svn: 166641
2012-10-23If the precompiled header named by "-include" is actually a directory,Douglas Gregor1-2/+43
check each of the files within that directory to determine if any of them is an AST file that matches the language and target options. If so, the first matching AST file is loaded. This fixes a longstanding discrepency with GCC's precompiled header implementation. llvm-svn: 166469
2012-10-14Delete temporary output files when an error occurs during PCH reading.Benjamin Kramer1-0/+1
This reduces the spam make test leaves behind in /tmp. The assert isn't particularly useful because it's not run with -disable-free (the default when using the clang driver) but should cover all -cc1 tests. llvm-svn: 165910
2012-10-09Rework the (de-)serialization of macros, as stored inDouglas Gregor1-1/+3
MacroInfo*. Instead of simply dumping an offset into the current file, give each macro definition a proper ID with all of the standard modules-remapping facilities. Additionally, when a macro is modified in a subsequent AST file (e.g., #undef'ing a macro loaded from another module or from a precompiled header), provide a macro update record rather than rewriting the entire macro definition. This gives us greater consistency with the way we handle declarations, and ties together macro definitions much more cleanly. Note that we're still not actually deserializing macro history (we never were), but it's far easy to do properly now. llvm-svn: 165560
2012-08-10Make sure to call EndSourceFile even if we can't continue compiling.Jordan Rose1-1/+5
Patch by Andy Gibbs! llvm-svn: 161649
2012-06-08[libclang] Don't crash when saving a PCH from a prefix headerArgyrios Kyrtzidis1-2/+4
that does not exist. rdar://11607033 llvm-svn: 158193
2012-05-29Fix indenting.David Blaikie1-25/+25
llvm-svn: 157628
2012-04-12Added a flag to the parser to skip method bodies.Erik Verbruggen1-1/+2
llvm-svn: 154584
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie1-1/+1
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner llvm-svn: 152536
2012-03-07[PCH] Mark a PCH file with a flag to indicate if the serialized AST hadArgyrios Kyrtzidis1-0/+1
compiler errors or not. -Control whether ASTReader should reject such a PCH by a boolean flag at ASTReader's creation time. By default, such a PCH file will be rejected with an error when trying to load it. [libclang] Allow clang_saveTranslationUnit to create a PCH file even if compiler errors occurred. -Have libclang API calls accept a PCH that had compiler errors. The general idea is that we want libclang to stay functional even if a PCH had a compiler error. rdar://10976363. llvm-svn: 152192
2012-02-20Basic: import IntrusiveRefCntPtr<> into clang namespaceDylan Noblesmith1-1/+1
The class name is long enough without the llvm:: added. Also bring in RefCountedBase and RefCountedBaseVPTR. llvm-svn: 150958
2012-02-07Print NamedDecls directly to a raw_ostream where possible.Benjamin Kramer1-1/+1
llvm-svn: 149982
2012-02-05Basic: import OwningPtr<> into clang namespaceDylan Noblesmith1-4/+4
llvm-svn: 149798
2012-01-27Introduce module attributes into the module map grammar, along with aDouglas Gregor1-1/+4
single attribute ("system") that allows us to mark a module as being a "system" module. Each of the headers that makes up a system module is considered to be a system header, so that we (for example) suppress warnings there. If a module is being inferred for a framework, and that framework directory is within a system frameworks directory, infer it as a system framework. llvm-svn: 149143
2012-01-26Extend the ExternalASTSource interface to allow the AST source toDouglas Gregor1-0/+11
provide the layout of records, rather than letting Clang compute the layout itself. LLDB provides the motivation for this feature: because various layout-altering attributes (packed, aligned, etc.) don't get reliably get placed into DWARF, the record layouts computed by LLDB from the reconstructed records differ from the actual layouts, and badness occurs. This interface lets the DWARF data drive layout, so we don't need the attributes preserved to get the answer write. The testing methodology for this change is fun. I've introduced a variant of -fdump-record-layouts called -fdump-record-layouts-simple that always has the simple C format and provides size/alignment/field offsets. There is also a -cc1 option -foverride-record-layout=<file> to take the output of -fdump-record-layouts-simple and parse it to produce a set of overridden layouts, which is introduced into the AST via a testing-only ExternalASTSource (called LayoutOverrideSource). Each test contains a number of records to lay out, which use various layout-changing attributes, and then dumps the layouts. We then run the test again, using the preprocessor to eliminate the layout-changing attributes entirely (which would give us different layouts for the records), but supplying the previously-computed record layouts. Finally, we diff the layouts produced from the two runs to be sure that they are identical. Note that this code makes the assumption that we don't *have* to provide the offsets of bases or virtual bases to get the layout right, because the alignment attributes don't affect it. I believe this assumption holds, but if it does not, we can extend LayoutOverrideSource to also provide base offset information. Fixes the Clang side of <rdar://problem/10169539>. llvm-svn: 149055
2012-01-20Extract the (InputKind, std::string) pair used to describe inputs toDouglas Gregor1-20/+18
the front end into its own class, FrontendInputFile, to make it easier to introduce new per-input data. No functionality change. llvm-svn: 148546
2012-01-05When loading an AST file, set SourceManager::MainFileID to the main file of ↵Argyrios Kyrtzidis1-10/+1
the AST file, as suggested by Tom Honermann. llvm-svn: 147612
2011-12-20Unweaken vtables as per ↵David Blaikie1-0/+2
http://llvm.org/docs/CodingStandards.html#ll_virtual_anch llvm-svn: 146959
2011-12-09Move ChainedIncludesSource into the Frontend library. This never reallyChandler Carruth1-1/+1
belonged in the Serialization library, it's setting up a compilation, not just deserializing. This should fix PR11512, making Serialization actually be layered below Frontend, a long standing layering violation in Clang. llvm-svn: 146233
2011-10-28Make -error-on-deserialized-decl work correctly by correctly delegating toArgyrios Kyrtzidis1-10/+42
the previous ASTDeserializationListener. llvm-svn: 143241
2011-09-25Rename Diagnostic to DiagnosticsEngine as per issue 5397David Blaikie1-2/+2
llvm-svn: 140478
2011-09-15Eliminate the list of modules from the preprocessor options. This wasDouglas Gregor1-24/+0
used back when we had an -import-module command-line option, but it's no longer used (or useful). llvm-svn: 139829
2011-08-25Introduce a -cc1 option "-emit-module", that creates a binary moduleDouglas Gregor1-3/+3
from the given source. -emit-module behaves similarly to -emit-pch, except that Sema is somewhat more strict about the contents of -emit-module. In the future, there are likely to be more interesting differences. llvm-svn: 138595
2011-08-05Wire up -import-module to run ReadAST for each module loaded.Jonathan D. Turner1-1/+26
llvm-svn: 136987
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner1-6/+6
LLVM.h imports them into the clang namespace. llvm-svn: 135852
2011-07-19Revamp the SourceManager to separate the representation of parsedDouglas Gregor1-3/+2
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. llvm-svn: 135484
2011-06-18[arcmt] Fix the ARC migrator. -arcmt-modify requires running before the ↵Argyrios Kyrtzidis1-0/+8
initialization of SourceManager because it is going to modify the input file. llvm-svn: 133323
2011-06-16Raise the ARCMT functionality in Clang into proper FrontendActions.Chandler Carruth1-0/+38
These are somewhat special in that they wrap any other FrontendAction, running various ARC transformations or checks prior to the standard action's run. To implement them easily, this extends FrontendAction to have a WrapperFrontendAction utility class which forwards all calls by default to an inner action setup at construction time. This is then subclassed to override the specific behavior needed by the different ARCMT tools. Finally, FrontendTool is taught how to create these wrapper actions from the existing flags and options structures. The result is that clangFrontend no longer depends on clangARCMigrate. This is very important, as clangARCMigrate *heavily* depends on clangFrontend. Fundamentally ARCMigrate is at the same layer as a library like Rewrite, sitting firmly on top of the Frontend, but tied together with the FrontendTool when building the clang binary itself. llvm-svn: 133161
2011-03-21Improve crash recovery cleanup to recovery CompilerInstances during crash ↵Ted Kremenek1-9/+9
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. llvm-svn: 128011
2011-03-09Introduce '-chain-include' option to specify headers that will be converted ↵Argyrios Kyrtzidis1-2/+11
to chained PCHs in memory without having to use multiple runs and intermediate files. Intended for testing & debugging of chained PCH. llvm-svn: 127339
2011-02-09Finish up the diagnostic client before we've torn down the ASTReader,Douglas Gregor1-3/+3
since the diagnostic client might poke at source locations that have not yet been deserialized. llvm-svn: 125204
2011-02-05Improve our uniquing of file entries when files are re-saved or areDouglas Gregor1-0/+1
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. llvm-svn: 124971
2011-01-29Support for -plugin-arg- with -add-pluginNico Weber1-1/+1
llvm-svn: 124551
2011-01-25Add -add-plugin flag, which runs plugins in addition to codegen.Nico Weber1-2/+39
llvm-svn: 124227
2010-11-30Such function decls,as objc's objc_msgSend, builtins in Fariborz Jahanian1-1/+1
a specific language. We are adding such language info. by extensing Builtins.def and via a language flag added to LIBBUILTIN/BUILTIN and check for that when deciding a name is builtin or not. Implements //rdar://8689273. llvm-svn: 120429
2010-11-23now the FileManager has a FileSystemOpts ivar, stop threadingChris Lattner1-1/+1
FileSystemOpts through a ton of apis, simplifying a lot of code. This also fixes a latent bug in ASTUnit where it would invoke methods on FileManager without creating one in some code paths in cindextext. llvm-svn: 120010
2010-11-18Use hasErrorOccurred() instead of getNumErrors() where it makes sense.Argyrios Kyrtzidis1-1/+1
llvm-svn: 119746
2010-11-03Implement -working-directory.Argyrios Kyrtzidis1-2/+3
When -working-directory is passed in command line, file paths are resolved relative to the specified directory. This helps both when using libclang (where we can't require the user to actually change the working directory) and to help reproduce test cases when the reproduction work comes along. --FileSystemOptions is introduced which controls how file system operations are performed (currently it just contains the working directory value if set). --FileSystemOptions are passed around to various interfaces that perform file operations. --Opening & reading the content of files should be done only through FileManager. This is useful in general since file operations will be abstracted in the future for the reproduction mechanism. FileSystemOptions is independent of FileManager so that we can have multiple translation units sharing the same FileManager but with different FileSystemOptions. Addresses rdar://8583824. llvm-svn: 118203
2010-10-29If Consumer object failed to create due to someFariborz Jahanian1-0/+2
user error, fail gracefully. Fixes pr8508. llvm-svn: 117692
2010-10-24Put the mechanism in place to track modifications in an AST entity that were ↵Argyrios Kyrtzidis1-0/+2
committed after its initial creation/deserialization and store the changes in a chained PCH. The idea is that the AST entities call methods on the ASTMutationListener to give notifications of changes; the PCHWriter implements the ASTMutationListener interface and stores the incremental changes of the updated entity. WIP llvm-svn: 117235
2010-10-14Give a default implementation for ASTDeserializationListener's methods, no ↵Argyrios Kyrtzidis1-14/+0
functionality change. llvm-svn: 116506
2010-10-14Introduce command line option -error-on-deserialized-decl that is ↵Argyrios Kyrtzidis1-0/+39
accompanied by a name and emits an error if a declaration with this name is deserialized from PCH. This is for testing, to make sure that we don't deserialize stuff needlessly. llvm-svn: 116505
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