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2011-10-27Add mutex for accessing ASTUnit's global OnDisk data. This may be an issue ↵Ted Kremenek
as libclang could be processing multiple ASTUnit's at once. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Move ASTUnit's handling of temporary files and the preamble file into a ↵Ted Kremenek
lazily-created static DenseMap. This DenseMap is cleared (and the files erased) via an atexit routine in the case an ASTUnit is not destroyed. Fixes <rdar://problem/10293367>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143115 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[PCH] When visiting preprocessed entities, make it possible to avoid ↵Argyrios Kyrtzidis
deserializing preprocessed entities that are #included in the range that we are interested. This is useful when we are interested in preprocessed entities of a specific file, e.g when we are annotating tokens. There is also an optimization where we cache the last result of PreprocessingRecord::getPreprocessedEntitiesInRange and we re-use it if there is a call with the same range as before. rdar://10313365 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142887 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[libclang] Make sure we don't try to erase past the StoredDiagnostics vector.Argyrios Kyrtzidis
Ted came upon the bug but I couldn't make a test out of it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142805 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-14Allow calling ASTUnit::LoadFromCompilerInvocationAction with a previously ↵Argyrios Kyrtzidis
created ASTUnit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142004 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-10[libclang] Implement ConcurrencyCheck using a recursive mutex to allow ↵Argyrios Kyrtzidis
re-entrancy in the same thread. The checks are performed only in DEBUG, it becomes no-op in release mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141582 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29Introduce a pure virtual clone() method to DiagnosticConsumer, so thatDouglas Gregor
we have the ability to create a new, distict diagnostic consumer when we go off and build a module. This avoids the currently horribleness where the same diagnostic consumer sees diagnostics for multiple translation units (and multiple SourceManagers!) causing all sorts of havok. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140743 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26Don't map a file:line:col triplet that is inside the preamble range toArgyrios Kyrtzidis
a "loaded" location of the precompiled preamble. Instead, handle specially locations of preprocessed entities: -When looking up for preprocessed entities, map main file locations inside the preamble range to a preamble loaded location. -When getting the source range of a preprocessing cursor, map preamble loaded locations back to main file locations. Fixes rdar://10175093 & http://llvm.org/PR10999 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140519 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26Rename DiagnosticInfo to Diagnostic as per issue 5397David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140493 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-26Rename StoredDiagnosticClient to StoredDiagnosticConsumer as per issue 5397David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140483 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-25Rename DiagnosticClient to DiagnosticConsumer as per issue 5397David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140479 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-25Rename Diagnostic to DiagnosticsEngine as per issue 5397David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19In libclang, when visiting preprocessed entities in a source range, useArgyrios Kyrtzidis
PreprocessingRecord's getPreprocessedEntitiesInRange. Also remove all the stuff that were added in ASTUnit that are unnecessary now that we do a binary search for preprocessed entities and deserialize only what is necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140063 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Introduce local_begin()/local_end() methods in PreprocessingRecord whichArgyrios Kyrtzidis
return iterators for local, non-loaded, preprocessed entities. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140062 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19[libclang] When getting a source location from a file:line:col tripletArgyrios Kyrtzidis
check whether the requested location points inside the precompiled preamble, in which case the returned source location will be a "loaded" one. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140060 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12[libclang] In ASTUnit::Parse copy the CompilerInvocation object instead ofArgyrios Kyrtzidis
modifying directly for the preamble. This avoids an awful, hard to find, bug where "PreprocessorOpts.DisablePCHValidation = true" would be persistent for subsequent reparses of the translation unit which would result in defines, present in command-line but not in the PCH, being ignored. Fixes rdar://9615399. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139512 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10Kill of the Decl::PCHLevel field entirely. We now only need to knowDouglas Gregor
whether a Decl was deserialized from an AST file (any AST file). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139438 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-04Fix Lexer::ComputePreamble when MaxLines parameter is non-zero.Argyrios Kyrtzidis
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). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139085 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Always construct an ASTReader with a non-NULL ASTContext andDouglas Gregor
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). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138986 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extend the ASTContext constructor to delay the initialization ofDouglas Gregor
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). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Allow the preprocessor to be constructed without performing target-Douglas Gregor
and language-specific initialization. Use this to allow ASTUnit to create a preprocessor object *before* loading the AST file. No actual functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138983 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Teach ASTContext and Preprocessor to hold on to references to the sameDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Modules hide macro definitions by default, so that silly things likeDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27objective-c: Treat top-level objective-c declarationsFariborz Jahanian
, 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138709 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Introduce support for a simple module import declaration, whichDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138679 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Eliminate the -chained-pch flag and all of the frontend and libclang options ↵Douglas Gregor
associated with it. Chained PCH is the only way to build a PCH file that includes another PCH file git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138597 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Remove the Chaining argument from the PCH/module generator. It's no longer usedDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138596 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Introduce a -cc1 option "-emit-module", that creates a binary moduleDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138595 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Make Lexer::ComputePreamble accept a LangOptions parameter, otherwise it may beArgyrios Kyrtzidis
out-of-sync how a file is compiled. Patch by Matthias Kleine! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138580 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17In the AST file format, eliminate the CHAINED_METADATA record. Instead,Douglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137869 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17[MSVC] Fix a warning C4334 "'operator' : result of 32-bit shift implicitly ↵NAKAMURA Takumi
converted to 64 bits (was 64-bit shift intended?)". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137803 91177308-0d34-0410-b5e6-96231b3b80d8
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
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