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* Fix Lexer::ComputePreamble when MaxLines parameter is non-zero.Argyrios Kyrtzidis2011-09-041-1/+2
| | | | | | | | The function was only counting lines that included tokens and not empty lines, but MaxLines (mainly initiated to the line where the code-completion point resides) is a count of overall lines (even empty ones). llvm-svn: 139085
* Always construct an ASTReader with a non-NULL ASTContext andDouglas Gregor2011-09-021-6/+1
| | | | | | | | | Preprocessor, eliminating the constructor that was used by ASTUnit (which didn't provide an ASTContext or Prepreprocessor). Ensuring that both objects are non-NULL will simplify module loading (but none of that is done yet). llvm-svn: 138986
* Extend the ASTContext constructor to delay the initialization ofDouglas Gregor2011-09-021-22/+25
| | | | | | | | builtin types (When requested). This is another step toward making ASTUnit build the ASTContext as needed when loading an AST file, rather than doing so after the fact. No actual functionality change (yet). llvm-svn: 138985
* Allow the preprocessor to be constructed without performing target-Douglas Gregor2011-09-011-24/+39
| | | | | | | | and language-specific initialization. Use this to allow ASTUnit to create a preprocessor object *before* loading the AST file. No actual functionality change. llvm-svn: 138983
* Teach ASTContext and Preprocessor to hold on to references to the sameDouglas Gregor2011-09-011-6/+6
| | | | | | | | | LangOptions, rather than making distinct copies of LangOptions. Granted, LangOptions doesn't actually get modified, but this will eventually make it easier to construct ASTContext and Preprocessor before we know all of the LangOptions. llvm-svn: 138959
* Modules hide macro definitions by default, so that silly things likeDouglas Gregor2011-09-011-2/+3
| | | | | | | | | | | include guards don't show up as macro definitions in every translation unit that imports a module. Macro definitions can, however, be exported with the intentionally-ugly #__export_macro__ directive. Implement this feature by not even bothering to serialize non-exported macros to a module, because clients of that module need not (should not) know that these macros even exist. llvm-svn: 138943
* objective-c: Treat top-level objective-c declarationsFariborz Jahanian2011-08-271-3/+1
| | | | | | | | | | , such as list of forward @class decls, in a DeclGroup node. Deal with its consequence throught clang. This is in preparation for more Sema work ahead. // rdar://8843851. Feel free to reverse if it breaks something important and I am unavailable. llvm-svn: 138709
* Introduce support for a simple module import declaration, whichDouglas Gregor2011-08-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | loads the named module. The syntax itself is intentionally hideous and will be replaced at some later point with something more palatable. For now, we're focusing on the semantics: - Module imports are handled first by the preprocessor (to get macro definitions) and then the same tokens are also handled by the parser (to get declarations). If both happen (as in normal compilation), the second one is redundant, because we currently have no way to hide macros or declarations when loading a module. Chris gets credit for this mad-but-workable scheme. - The Preprocessor now holds on to a reference to a module loader, which is responsible for loading named modules. CompilerInstance is the only important module loader: it now knows how to create and wire up an AST reader on demand to actually perform the module load. - We search for modules in the include path, using the module name with the suffix ".pcm" (precompiled module) for the file name. This is a temporary hack; we hope to improve the situation in the future. llvm-svn: 138679
* Eliminate the -chained-pch flag and all of the frontend and libclang options ↵Douglas Gregor2011-08-251-13/+0
| | | | | | associated with it. Chained PCH is the only way to build a PCH file that includes another PCH file llvm-svn: 138597
* Remove the Chaining argument from the PCH/module generator. It's no longer usedDouglas Gregor2011-08-251-7/+5
| | | | llvm-svn: 138596
* Introduce a -cc1 option "-emit-module", that creates a binary moduleDouglas Gregor2011-08-251-10/+9
| | | | | | | | | 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
* Make Lexer::ComputePreamble accept a LangOptions parameter, otherwise it may beArgyrios Kyrtzidis2011-08-251-1/+3
| | | | | | out-of-sync how a file is compiled. Patch by Matthias Kleine! llvm-svn: 138580
* In the AST file format, eliminate the CHAINED_METADATA record. Instead,Douglas Gregor2011-08-171-5/+0
| | | | | | | | | | | | | all AST files have a normal METADATA record that has the same form regardless of whether we refer to a chained PCH or any other kind of AST file. Introduce the IMPORTS record, which describes all of the AST files that are imported by this AST file, and how (as a module, a PCH file, etc.). Currently, we emit at most one entry to this record, to support chained PCH. llvm-svn: 137869
* [MSVC] Fix a warning C4334 "'operator' : result of 32-bit shift implicitly ↵NAKAMURA Takumi2011-08-171-2/+1
| | | | | | converted to 64 bits (was 64-bit shift intended?)". llvm-svn: 137803
* Add a new libclang API to return a CXCompletionString for an arbitraryDouglas Gregor2011-08-041-0/+4
| | | | | | cursor, from Connor Wakamo! Addresses <rdar://problem/9087798>. llvm-svn: 136911
* When performing code completion after at @interface, allow bothDouglas Gregor2011-07-301-2/+2
| | | | | | | | already-defined and forward-declared results. Already-defined results are fine because they could be the start of a category. Fixes <rdar://problem/9811691>. llvm-svn: 136559
* Cut down the number of open/close system calls for output files.Argyrios Kyrtzidis2011-07-281-13/+7
| | | | | | | | | 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. llvm-svn: 136315
* This patch extends the previous patch by starting to incorporate more ↵Jonathan D. Turner2011-07-261-1/+1
| | | | | | 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). llvm-svn: 136107
* remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner2011-07-231-30/+30
| | | | | | | | LLVM.h imports them into the clang namespace. llvm-svn: 135852
* Remove prepending of '$' to module names.Jonathan D. Turner2011-07-221-2/+2
| | | | llvm-svn: 135775
* Switch all of the "isysroot" const char*'s throughout the AST readerDouglas Gregor2011-07-221-5/+6
| | | | | | and writer to StringRef or std::string, as appropriate. llvm-svn: 135769
* Rename ASTReader::PerFileData to serialization::Module, pulling it outDouglas Gregor2011-07-221-2/+2
| | | | | | | of ASTReader so it can become its own full-fledged class (eventually). No functionality change. llvm-svn: 135767
* For ASTUnit::Save, write the AST to a temporary and then rename it to the ↵Argyrios Kyrtzidis2011-07-211-4/+26
| | | | | | | | actual filename. Should avoid race conditions. Addresses rdar://9788943. llvm-svn: 135691
* Cut down one open/close pair of system calls by using Path's makeUnique ↵Argyrios Kyrtzidis2011-07-211-1/+1
| | | | | | instead of createTemporaryFileOnDisk. llvm-svn: 135690
* Rework the detailed preprocessing record to separate preprocessingDouglas Gregor2011-07-211-9/+1
| | | | | | | | | | | | | | | 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. llvm-svn: 135646
* Revamp the SourceManager to separate the representation of parsedDouglas Gregor2011-07-191-19/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Migrate LLVM and Clang to use the new makeArrayRef(...) functions where ↵Frits van Bommel2011-07-181-2/+2
| | | | | | | | previously explicit non-default constructors were used. Mostly mechanical with some manual reformatting. llvm-svn: 135390
* NestedMacroInstantiations -> NestedMacroExpansionsChandler Carruth2011-07-141-7/+7
| | | | | | | | | | | | | | | | 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. llvm-svn: 135141
* Introduce a new libclang aPI function,Douglas Gregor2011-07-071-16/+30
| | | | | | | | | 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! llvm-svn: 134615
* Keep track of when "unrecoverable" errors occur, then allowDouglas Gregor2011-07-061-1/+1
| | | | | | | clang_saveTranslationUnit() to save a PCH file if the only errors it contains are recoverable errors. Fixes <rdar://problem/9727804>. llvm-svn: 134503
* libclang: Allow callers of clang_saveTranslationUnit() to distinguishDouglas Gregor2011-07-061-4/+4
| | | | | | | between different classes of errors. Addresses most of <rdar://problem/9660328>. llvm-svn: 134495
* When we create a precompiled preamble, don't copy theDouglas Gregor2011-07-011-6/+9
| | | | | | | | | | | 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>. llvm-svn: 134245
* Introduce a new libclang parsing flag,Douglas Gregor2011-05-061-2/+12
| | | | | | | | | | | | | 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>. llvm-svn: 130990
* ASTUnit::LoadFromASTFile(): recover the resources from an ASTReader if it ↵Ted Kremenek2011-05-041-0/+10
| | | | | | crashes during PCH validation. llvm-svn: 130886
* Introduce ASTUnit::LoadFromCompilerInvocationAction that allows one to ↵Argyrios Kyrtzidis2011-05-031-0/+113
| | | | | | | | | create an ASTUnit from a CompilerInvocation along with an ASTFrontendAction to invoke, and without all the goo about the precompiled preamble. llvm-svn: 130805
* Move Driver::createInvocationFromArgs function to Frontend library to avoid ↵Argyrios Kyrtzidis2011-04-041-1/+1
| | | | | | | | dependency cycle between libFrontend and libDriver. llvm-svn: 128852
* Introduce Driver::createInvocationFromArgs used to create a ↵Argyrios Kyrtzidis2011-04-041-52/+4
| | | | | | CompilerInvocation from command-line args. llvm-svn: 128848
* switch a few Driver APIs to use llvm::ArrayRef, cleaning up code.Chris Lattner2011-03-231-4/+2
| | | | llvm-svn: 128142
* std::vector::data() is not portable to VS. Use a gross hack instead.Ted Kremenek2011-03-231-1/+3
| | | | llvm-svn: 128138
* Rework crash recovery cleanup in ASTUnit and CIndex to recover more memory ↵Ted Kremenek2011-03-221-25/+46
| | | | | | | | during a Sema crash (we have just a handful of leaks left) and to use the simplified cleanup registration API. llvm-svn: 128059
* Improve crash recovery cleanup to recovery CompilerInstances during crash ↵Ted Kremenek2011-03-211-64/+53
| | | | | | | | | | 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
* Use CrashRecoveryContextCleanup objects to reclaim resources from ↵Ted Kremenek2011-03-211-72/+90
| | | | | | CompilerInstance objects. llvm-svn: 128009
* Use the newly added FileManager::getNoncachedStatValue when trying to ↵Anders Carlsson2011-03-181-2/+2
| | | | | | determine if any files in the preamble have changed. llvm-svn: 127894
* Correctly store and keep track of the FileSystemOptions in ASTUnit and in ↵Anders Carlsson2011-03-181-4/+6
| | | | | | clang_codeCompleteAt. llvm-svn: 127890
* Use CrashRecoveryContextCleanup objects to recover an ASTUnit if we crash in ↵Ted Kremenek2011-03-181-0/+18
| | | | | | ASTUnit::LoadFromCommandLine() and ASTUnit::LoadFromCompilerInvocation(). llvm-svn: 127851
* Introduce '-chain-include' option to specify headers that will be converted ↵Argyrios Kyrtzidis2011-03-091-5/+28
| | | | | | | | | | to chained PCHs in memory without having to use multiple runs and intermediate files. Intended for testing & debugging of chained PCH. llvm-svn: 127339
* Add 'OverridenFilesKeepOriginalName' field in SourceManager which if true ↵Argyrios Kyrtzidis2011-03-081-0/+3
| | | | | | | | | | | 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. llvm-svn: 127289
* Allow passing '-###' to ASTUnit::LoadFromCommandLine to print out the cc1 ↵Argyrios Kyrtzidis2011-03-071-0/+8
| | | | | | options. llvm-svn: 127183
* Currently we can only remap a file by creating a MemoryBuffer and replacing ↵Argyrios Kyrtzidis2011-03-051-25/+75
| | | | | | | | | 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. llvm-svn: 127052
* Introduce OwnsRemappedFileBuffers field in ASTUnit, indicating whether the ↵Argyrios Kyrtzidis2011-03-051-1/+2
| | | | | | ASTUnit should delete the remapped buffers. llvm-svn: 127051
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