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2010-08-23Introduce a new code-completion point when we're parsing aDouglas Gregor
declarator. Here, we can only see a few things (e.g., cvr-qualifiers, nested name specifiers) and we do not want to provide other non-macro completions. Previously, we would end up in recovery mode and would provide a large number of non-relevant completions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Abstract out member-pointer creation. I'm really unhappy about the currentJohn McCall
duplication between the constant and non-constant paths in all of this. Implement ARM ABI semantics for member pointer constants and conversion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111772 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20When performing code-completion in the presence of a preamble, makeDouglas Gregor
sure to (1) actually use the remapped files we were given rather than old data, and (2) keep the remapped files alive until the code-completion results are destroyed. Big thanks to Daniel for the test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111597 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20When we decide not to reuse a precompiled preamble, clear out theDouglas Gregor
previous precompiled preamble completely. Fixes <rdar://problem/8330950>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111590 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-19Fix a loop overrun in ComputePreamble when the last remapped file was erased,Daniel Dunbar
and reenable crash recovery test. - Reparsing is still very crashy / weird, so I had to sprinkle random code into the remapped input to get it to do what I want (i.e., crash!). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111550 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-19Plug a leak when precompiling the preamble in ASTUnit.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111504 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-19Make sure to initialize ASTUnit::UnsafeToFreeDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Rename the ASTReader header files.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18More PCH -> AST renaming.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111472 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Rename various classes from PCH to AST.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111471 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Rename PCHReader to ASTReader.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Rename PCHWriter.h to ASTWriter.hSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111466 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Rename PCHWriter to ASTWriterSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18When creating an ASTUnit by parsing source code, set DisableFree toDouglas Gregor
false (not true), so that the CompilerInstance will actually free data structures when it's done. This fixes a major leak with libclang's in-process code completion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Simplify the ownership model for DiagnosticClients, which was reallyDouglas Gregor
convoluted and a bit leaky. Now, the Diagnostic object owns its DiagnosticClient. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111437 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17Reintroduce the serialization library, with fixed dependencies.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17Revert Sebastian's build-breaking patch.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111265 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17Create a new Serialization module that contains all the PCH code, and will ↵Sebastian Redl
contain all the module code in the future. Update the Makefiles, CMake projects and the Xcode project. I hope I did everything right for Xcode. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111258 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17When the # of top-level declarations changes after reparsing aDouglas Gregor
translation unit, refresh code-completion results because they've probably changed. However, enforce a cooldown period between refreshes, to avoid thrashing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Move include to the proper place. No functionality changeDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111204 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Implement support for cached code completions forDouglas Gregor
nested-name-specifiers. Also includes fixes to the generation of nested-name-specifier result in the non-cached case; we were producing lame results for namespaces and namespace aliases, which (1) didn't always have nested-name-specifiers when we want them, and (2) did not have the necessary "::" as part of the completion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Formatting fixes. No functionality changeDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111186 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Implement name hiding of cached global code-completion results.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111184 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Move some code out-of-line which has long since grown too large to beDouglas Gregor
inlined. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111176 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16When caching code completions for global declarations, keep track ofDouglas Gregor
the usage type of each declaration result, then compare those types to the preferred type of the completion. This provides parity in the priority calculation between the code-completion results produced directly from Sema and those cached by ASTUnit. For the standard Cocoa.h (+ others) example, there's a penalty of 3-4 hundredeths of a second when caching the global results (for ~31,000 results), because we need an ASTContext-agnostic representation of types for the comparison, and therefore we use... strings. Eventually, we'd like to implement a more efficient ASTContext-agnostic encoding of types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111165 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Dereferencing NULL pointers is such poor form.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16When caching global completion results, keep track of the simplifiedDouglas Gregor
type class, so that we can adjust priorities appropriately when the preferred type for the context and the actual type of the completion are similar. This gets us one step closer to parity of the cached completion results with the non-cached completion results. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111139 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-15Open AST/PCH files in binary mode.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111106 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-15Extend the code-completion caching infrastructure to include globalDouglas Gregor
declarations (in addition to macros). Each kind of declaration maps to a certain set of completion contexts, and the ASTUnit completion logic introduces the completion strings for those declarations if the actual code-completion occurs in one of the contexts where it matters. There are a few new code-completion-context kinds. Without these, certain completions (e.g., after "using namespace") would need to suppress all global completions, which would be unfortunate. Note that we don't get the priorities right for global completions, because we don't have enough type information. We'll need a way to compare types in an ASTContext-agnostic way before this can be implemented. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Implement caching of code-completion results for macro definitionsDouglas Gregor
when the CXTranslationUnit_CacheCompletionResults option is given to clang_parseTranslationUnit(). Essentially, we compute code-completion results for macro definitions after we have parsed the file, then store an ASTContext-agnostic version of those results (completion string, cursor kind, priority, and active contexts) in the ASTUnit. When performing code completion in that ASTUnit, we splice the macro definition results into the results provided by the actual code-completion (which has had macros turned off) before libclang gets those results. We use completion context information to only splice in those results that make sense for that context. With a completion involving all of the macros from Cocoa.h and a few other system libraries (totally ~8500 macro definitions) living in a precompiled header, we get about a 9% performance improvement from code completion, since we no longer have to deserialize all of the macro definitions from the precompiled header. Note that macro definitions are merely the canary; the cache is designed to also support other top-level declarations, which should be a bigger performance win. That optimization will be next. Note also that there is no mechanism for determining when to throw away the cache and recompute its contents. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111051 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Implement clang_saveTranslationUnit(), which saves a translation unitDouglas Gregor
into a PCH/AST file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Teach ASTUnit to hold on to the Sema object and ASTConsumer that areDouglas Gregor
used when parsing (or re-parsing) a file. Also, when loading a precompiled header into ASTUnit, create a Sema object that holds onto semantic-analysis information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111003 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Reintroduce the ASTConsumer/ASTUnit fix from r110610, it has nothing to do ↵Sebastian Redl
with the breakage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110840 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Fix a thinko in the creation of temporary files for the precompiled preambleDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110804 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Speculatively revert r110610 " Make ObjCInterfaceDecl redeclarable,Douglas Gregor
and create separate decl nodes for forward declarations and the definition," which appears to be causing significant Objective-C breakage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110803 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09- Make ObjCInterfaceDecl redeclarable, and create separate decl nodes for ↵Sebastian Redl
forward declarations and the definition. - Eagerly create ObjCInterfaceTypes for declarations. - The two above changes lead to a 0.5% increase in memory use and no speed regression when parsing Cocoa.h. On the other hand, now chained PCH works when there's a forward declaration in one PCH and the interface definition in another. - Add HandleInterestingDecl to ASTConsumer. PCHReader passes the "interesting" decls it finds to this function instead of HandleTopLevelDecl. The default implementation forwards to HandleTopLevelDecl, but ASTUnit's handler for example ignores them. This fixes a potential crash when lazy loading of PCH data would cause ASTUnit's "top level" declaration collection to change while being iterated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110610 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09Use precompiled preambles for in-process code completion.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110596 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Add an environment variable that makes libclang use chaining for PCH.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110414 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Give clang_codeCompleteAt() an "options" parameter, and add a newDouglas Gregor
flags enumeration + default-generating function that allows code-completion to be customized via the libclang API. Plus, turn on spell-checking when performing code completion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110319 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04When performing in-process code completion, don't free the remappedDouglas Gregor
file buffers until the code completion results are destroyed; diagnostics may end up referring into the source. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Add code-completion support directly to ASTUnit, which performs codeDouglas Gregor
completion within the translation unit using the same command-line arguments for parsing the translation unit. Eventually, we'll reuse the precompiled preamble to improve code-completion performance, and this also gives us a place to cache results. Expose this function via the new libclang function clang_codeCompleteAt(), which performs the code completion within a CXTranslationUnit. The completion occurs in-process (clang_codeCompletion() runs code completion out-of-process). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110210 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04When we try (but fail) to build a precompiled preamble, wait for aDouglas Gregor
short "cooling off" period (defaulting to 5 reparses) before trying to build a precompiled preamble again. Previously, if we failed to build the precompiled preamble at any time, we just gave up the whole charade any never tried again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110187 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03When using a precompiled preamble, keep track of the top-levelDouglas Gregor
declarations that we saw when creating the precompiled preamble, and provide those declarations in addition to the declarations parsed in the main source file when traversing top-level declarations. This makes the use of precompiled preambles a pure optimization, rather than changing the semantics of the parsed translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110131 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Reshuffle the PCH generator action and consumer, so that we can re-useDouglas Gregor
it while generating precompiled preambles. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02When using a precompiled preamble, save the diagnostics produced whenDouglas Gregor
creating the preamble and "replay" them when reusing the preamble. Also, fix a thinko in the copying of the preamble when building the precompiled preamble. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-31Implement dependency analysis for the precompiled preamble. If any ofDouglas Gregor
the files in the precompiled preamble have changed since it was build, force the preamble to be rebuilt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109937 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30Add some timers to ASTUnit that are only enabled when the LIBCLANG_TIMING ↵Douglas Gregor
environment variable is set. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28Turn off precompiled preamble support for C++Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109680 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Fix use-after-free with precompiled preamblesDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109505 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Implement -fno-validate-pch at the -cc1 level, which suppresses mostDouglas Gregor
of the usual consistency checks used to determine when a precompiled header is incompatible with the translation unit it's being loaded into. Enable this option when loading a precompiled preamble, because the preamble loader will be performing all of this checking itself. Enable the preamble-based test now that it's working. This option is also useful for debugging Clang's PCH (<rdar://problem/7532213>). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109475 91177308-0d34-0410-b5e6-96231b3b80d8
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