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path: root/lib/Frontend/ASTUnit.cpp
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2010-07-26Introduce basic support for loading a precompiled preamble whileDouglas Gregor
reparsing an ASTUnit. When saving a preamble, create a buffer larger than the actual file we're working with but fill everything from the end of the preamble to the end of the file with spaces (so the lexer will quickly skip them). When we load the file, create a buffer of the same size, filling it with the file and then spaces. Then, instruct the lexer to start lexing after the preamble, therefore continuing the parse from the spot where the preamble left off. It's now possible to perform a simple preamble build + parse (+ reparse) with ASTUnit. However, one has to disable a bunch of checking in the PCH reader to do so. That part isn't committed; it will likely be handled with some other kind of flag (e.g., -fno-validate-pch). As part of this, fix some issues with null termination of the memory buffers created for the preamble; we were trying to explicitly NULL-terminate them, even though they were also getting implicitly NULL terminated, leading to excess warnings about NULL characters in source files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-25Make ASTContext always use the BumpPtrAllocator.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109375 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Put a newline at the end of the padded buffers used for theDouglas Gregor
precompiled preamble. This will suppress the -pedantic "no newline at end of file" warning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109301 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Once we've built (or reused) a precompiled preamble, create theDouglas Gregor
appropriately-padded main file buffer (that has spaces in the extra "reserved" space) and thread that buffer through to the parsing function. This still does nothing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109299 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Once we've built a precompiled preamble, keep track of the details ofDouglas Gregor
that preamble (the preamble text, preamble file, reserved main file size). Check these details when we try to rebuild the precompiled preamble, and when nothing has changed, re-use the precompiled preamble. This code is still very much a WIP, and can't even properly be tested because we have no way to use the precompiled preamble yet. "Trust me" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Fix build on Ubuntu 10.04.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109208 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Basic plumbing for generating a precompiled preamble for anDouglas Gregor
ASTUnit/CXTranslationUnit. We can't actually use this preamble yet, however. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109202 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19Introduce a new libclang API, clang_reparseTranslationUnit(), whichDouglas Gregor
reparses an already-parsed translation unit. At the moment it's just a convenience function, but we hope to use it for performance optimizations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108756 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19Driver: Change the driver to take the path to the main executable, instead ofDaniel Dunbar
taking it in pieces. - Fixes a problem where the Clang executable path was not initialized properly on Win32, because sys::Path::getBasename() doesn't do what I always think it does. Imagine that, a sys::Path interface that is confusing! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14There is another implementation of PCHReaderListener around. Update it to ↵Sebastian Redl
the new interface. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Add an option to specify the target C++ ABI to the frontend. Use it toCharles Davis
select either the default Itanium ABI or the new, experimental Microsoft ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105804 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-07Frontend: Add FrontendAction support for handling LLVM IR inputs.Daniel Dunbar
- These inputs follow an abbreviated execution path, but are still worth handling by FrontendAction so they reuse all the other clang -cc1 features. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105582 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-07Frontend: Move some initialization from CompilerInstance to FrontendAction, ↵Daniel Dunbar
to parallel what is done for AST inputs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105579 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-07Frontend: Change FrontendAction::BeginSourceFile to take the input kind ↵Daniel Dunbar
instead of an IsAST bool. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105578 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-07Frontend: Lift InputKind enumeration to top level.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105577 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03Workaround: Don't add ObjCMethodDecls to the vector of TopLevelDecls since ↵Ted Kremenek
they don't go in the DeclContext for the translation unit. This is to workaround a fundamental issue in how ObjC decls (within an @implementation) are parsed before the ObjCContainerDecl is available. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102944 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Fix -Wcast-qual warnings.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Make Diagnostic reference-counted, which is simpler than jugglingDouglas Gregor
maybe-ownership vs. ownership. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Clarify the ownership semantics of the Diagnostic object used byDouglas Gregor
ASTUnit. Previously, we would end up with use-after-free errors because the Diagnostic object would be creating in one place (say, CIndex) and its ownership would not be transferred into the ASTUnit. Fixes <rdar://problem/7818608>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100464 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Minor ASTUnit cleanups:Douglas Gregor
- Rename "Diagnostics" and related to "StoredDiagnostics", to better capture what we're actually storing. - Move SourceManager and FileManager to the heap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100441 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01Driver: Add support for a CLANGXX_IS_PRODUCTION build variable, which enableDaniel Dunbar
Clang++ support, even in "Production" mode (for testing purposes). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100119 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19Optionally store a PreprocessingRecord in the preprocessor itself, andDouglas Gregor
tie its creation to a CC1 flag -detailed-preprocessing-record. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18Introduce the notion of a "preprocessing record", which keeps track ofDouglas Gregor
the macro definitions and macro instantiations that are found during preprocessing. Preprocessing records are *not* generated by default; rather, we provide a PPCallbacks subclass that hooks into the existing callback mechanism to record this activity. The only client of preprocessing records is CIndex, which keeps track of macro definitions and instantations so that they can be exposed via cursors. At present, only token annotation uses these facilities, and only for macro instantiations; both will change in the near future. However, with this change, token annotation properly annotates macro instantiations that do not produce any tokens and instantiations of macros that are later undef'd, improving our consistency. Preprocessing directives that are not macro definitions are still handled by clang_annotateTokens() via re-lexing, so that we don't have to track every preprocessing directive in the preprocessing record. Performance impact of preprocessing records is still TBD, although it is limited to CIndex and therefore out of the path of the main compiler. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98836 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17Don't "take" the file manager and source manager whenDouglas Gregor
ASTUnit::LoadFromCompilerInvocation() fails to create target information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98697 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Make sure we actually override ReadHeaderFileInfo when we meant toDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98655 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Give SourceManager a Diagnostic object with which to report errors,Douglas Gregor
and start simplifying the interfaces in SourceManager that can fail. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05The Windows build is just too weird; there's no real cost to doing the ↵Douglas Gregor
concurrency checks for ASTUnit in all builds git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97840 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Switch from NDEBUG to _DEBUG, since our Windows build is funnyDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97835 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05A little hack to identify unwanted concurrency in CIndexDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-27When given unsaved files in clang_createTranslationUnitFromSourceFile,Douglas Gregor
copy the source buffers provided rather than referencing them directly, so that the caller can free those buffers immediately after calling clang_createTranslationUnitFromSourceFile(). Otherwise, we risk hitting those buffers later (when building source ranges, forming diagnostics, etc.). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-18Teach ASTUnit to keep track of temporary files, then delete them whenDouglas Gregor
the ASTUnit itself is destroyed. Fixes <rdar://problem/7649385>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-18Rework how CIndex handles diagnostics. Rather than using a callback,Douglas Gregor
we attach diagnostics to translation units and code-completion results, so they can be queried at any time. To facilitate this, the new StoredDiagnostic class stores a diagnostic in a serializable/deserializable form, and ASTUnit knows how to capture diagnostics in this stored form. CIndex's CXDiagnostic is a thin wrapper around StoredDiagnostic, providing a C interface to stored or de-serialized diagnostics. I've XFAIL'd one test case temporarily, because currently we end up storing diagnostics in an ASTUnit that's never returned to the user (because it contains errors). I'll introduce a temporary fix for this soon; the real fix will be to allow us to return and query invalid ASTs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96592 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16ASTUnit: Constant fold UseBumpAllocator to true, we don't care to support ↵Daniel Dunbar
this as an argument. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96316 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16ASTUnit::LoadFromCompilerInvocation - Take ownership of the provided invocation.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96315 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30ASTUnit: Ensure the CompilerInvocation object used in LoadFromCommandLine isDaniel Dunbar
live as long as the ASTUnit. This is useful for clients which want to maintain pointers to the LangOptions object which ultimately lives in the CompilerInvocation, although it would be nice to make all of this ownership stuff more explicit and obvious. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94924 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30PCHReader doesn't implement classof so dyn_casting it will do really weird ↵Benjamin Kramer
stuff. Use a static_cast instead. I don't know if this hack is the right fix. Doug, please take a look. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94895 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25ASTUnit: Don't check that input files exist when parsing ASTs from the commandDaniel Dunbar
line -- they may be remapped (fake) files. This is useful for testing parsing entirely from memory. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Extend clang_createTranslationUnitFromSourceFile() to support creatingDouglas Gregor
translation units that include unsaved files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Add -resource-dir to clang -cc1, this allows the base directory for compilerDaniel Dunbar
resources (e.g., /usr/lib/clang/1.1) to be passed on the command line instead of computed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91370 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13Lift builtin-include-path logic out of ASTUnit::LoadFromCommandLine and fix ↵Daniel Dunbar
CIndex to pass in the right directory (previously it was using the path to the main executable, which generally is wrong). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91238 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13CompilerInvocation: Move builtin-include-path logic out of ↵Daniel Dunbar
CompilerInvocation::CreateFromArgs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91237 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-08Remove several .c_str() to be forward-compatible with StringRef.Jeffrey Yasskin
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90822 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04ASTUnit/CIndex: Explicitly track the top-level decls when using an ASTUnit madeDaniel Dunbar
from a source file. - This allows CIndex to avoid iterating over all the top-level decls when using a PCH, which means we deserialize far fewer decls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90559 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03Fix ASTUnit to allows require a (persistent) Diagnostic object be provided; ↵Daniel Dunbar
propogate and simplify. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02ASTUnit: Explicitly track whether the ASTUnit came from an actual AST or not.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90349 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02ASTUnit: Fix initialization of OnlyLocalDecls variable, and honor ↵Daniel Dunbar
UseBumpAllocator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90348 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02Fix ASTUnit::getOriginalSourceFileName() when using ASTUnit's derived fromDaniel Dunbar
source files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02ASTUnit: Don't create an LLVMContext, it shouldn't be needed.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90310 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02Add ASTUnit::LoadFromCommandLine, which creates an ASTUnit out of a list ofDaniel Dunbar
(clang/driver) command line arguments (including the source file). - The arguments are expected to include the source file. - The idea is that even though this is a somewhat odd API, its the form which many tools can most easily use (for example, by interposing with the compiler). Also, switch index-test's -ast-from-source to use this entry point, and provide a -arg command line argument which can be used to test that the command line arguments are handled correctly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90288 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01ASTUnit: Make sure to preserve the TargetInfo for later use.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90263 91177308-0d34-0410-b5e6-96231b3b80d8
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