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2011-12-15Keep track of all declarations of an Objective-C class (both forwardDouglas Gregor
declarations and definitions) as ObjCInterfaceDecls within the same redeclaration chain. This new representation matches what we do for C/C++ variables/functions/classes/templates/etc., and makes it possible to answer the query "where are all of the declarations of this class?" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146679 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Extend ObjCInterfaceDecl::DefinitionData to contain a pointer to theDouglas Gregor
definition, and implement ObjCInterfaceDecl::getDefinition() efficiently based on that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146669 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Introduce the core infrastructure needed to model a completeDouglas Gregor
redeclaration chain for Objective-C classes, including: - Using the first declaration as the canonical declaration. - Using the definition as the primary DeclContext - Making sure that all declarations have a pointer to the definition data, and the definition knows that it is the definition. - Serialization support for when a definition gets added to a declaration that comes from an AST file. However, note that we're not taking advantage of much of this code yet, because we're still re-using ObjCInterfaceDecls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146667 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Move the definition-specific data of ObjCInterfaceDecl into aDouglas Gregor
separately-allocated DefinitionData structure, which we manage the same way as CXXRecordDecl::DefinitionData. This prepares the way for making ObjCInterfaceDecls redeclarable, to more accurately model forward declarations of Objective-C classes and eliminate the mutation of ObjCInterfaceDecl that causes us serious trouble in the AST reader. Note that ObjCInterfaceDecl's accessors are fairly robust against being applied to forward declarations, because Clang (and Sema in particular) doesn't perform RequireCompleteType/hasDefinition() checks everywhere it has to. Each of these overly-robust cases is marked with a FIXME, which we can tackle over time. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146644 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-14Eliminate the vistigial ObjCClassDecl::ObjCClassRef, and inline itsDouglas Gregor
members into ObjCClassDecl, saving ourselves one pointer per forward declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146564 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-12Tweak submodule ID handling in the AST writerDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146445 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Use llvm::sys::fs::equivalent rather than comparing inodes, becauseDouglas Gregor
comparing inodes doesn't actually work on Windows. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146260 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Move ChainedIncludesSource into the Frontend library. This never reallyChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146233 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Clean up the comments for this file now that its contents are totallyChandler Carruth
different from what the comments indicated. Also drop a no longer used include that also violates the layering between Serialization and Frontend. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146230 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Move a free function from the Frontend library into the Lex library asChandler Carruth
part of HeaderSearch. This function just normalizes filenames for use inside of a synthetic include directive, but it is used in both the Frontend and Serialization libraries so it needs a common home. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Save category name loc in ObjCCategoryImplDecl, patch by Jason Haslam!Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146213 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Separate the serialization library's diagnostics from the frontend'sChandler Carruth
diagnostics. Conflating them was highly confusing and makes it harder to establish a firm layering separation between these two libraries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146207 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-08Implement umbrella directories for modules, which are similar toDouglas Gregor
umbrella headers in the sense that all of the headers within that directory (and eventually its subdirectories) are considered to be part of the module with that umbrella directory. However, unlike umbrella headers, which are expected to include all of the headers within their subdirectories, Clang will automatically include all of the headers it finds in the named subdirectory. The intent here is to allow a module map to trivially turn a subdirectory into a module, where the module's structure can mimic the directory structure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146165 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-08Within the module representation, generalize the notion of an umbrellaDouglas Gregor
header to also support umbrella directories. The umbrella directory for an umbrella header is the directory in which the umbrella header resides. No functionality change yet, but it's coming. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146158 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07Remove unused-but-set variable.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146034 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Implement inferred submodules support, which (when requested)Douglas Gregor
implicitly generates submodules corresponding to the headers that fall within a module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145887 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05Parse inferred submodules in module maps, track their contents inDouglas Gregor
Module, and (de-)serialize this information. Semantics of inferred submodules to follow. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145864 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05Implement support for wildcard exports in modules, allowing a moduleDouglas Gregor
to re-export anything that it imports. This opt-in feature makes a module behave more like a header, because it can be used to re-export the transitive closure of a (sub)module's dependencies. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05Actually add a useful bit to the comment pre-FIXMEDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05When writing a module file, keep track of the set of (sub)modules thatDouglas Gregor
it imports, establishing dependencies at the (sub)module granularity. This is not a user-visible change (yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145808 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03[PCH] Make sure that the SourceExpr of a OpaqueValueExpr is always initializedArgyrios Kyrtzidis
when deserialized, fixing random crashes in libclang. Also simplifies how OpaqueValueExprs are [de]serialized. The reader/writer automatically retains pointer equality of sub-statements (when a statement node is referenced in multiple nodes), so no need to manually handle it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145752 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Module files representing actual modules don't need to know the set of ↵Douglas Gregor
modules they import, since that information isn't actually used. Drop it from the AST file git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Implement support for precompiled headers, preambles, and serializedDouglas Gregor
"main" files that import modules. When loading any of these kinds of AST files, we make the modules that were imported visible into the translation unit that loaded the PCH file or preamble. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02Introduce a module import declaration, so that we properly represent, e.g.,Douglas Gregor
__import_module__ std.vector; in the AST. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145725 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02Only perform checking of the predefines buffer when loading aDouglas Gregor
precompiled header. Previously, we were trying to gather predefines buffers from all kinds of AST files (which doesn't make sense) and were performing some validation when AST files were loaded as main files. With these tweaks, using PCH files that import modules no longer fails immediately (due to mismatched predefines buffers). However, module visibility is lost, so this feature does not yet work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145709 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02When making a module visible, also make any of its exported modulesDouglas Gregor
visible, allowing one to create modules that import (and then re-export) other modules. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145696 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02Implement (de-)serialization of the set of exported modules in aDouglas Gregor
module map. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145695 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02Notify the AST writer (via ASTDeserializationListener) when aDouglas Gregor
(sub)module is read from an AST file. This makes sure that the AST writer knows how to map all modules to their global IDs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145685 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02Implement name hiding for macro definitions within modules, such thatDouglas Gregor
only the macro definitions from visible (sub)modules will actually be visible. This provides the same behavior for macros that r145640 provided for declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01Implement name hiding for declarations deserialized from a non-visibleDouglas Gregor
module. When that module becomes visible, so do those declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145640 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01Introduce the notion of name visibility into modules. For a givenDouglas Gregor
(sub)module, all of the names may be hidden, just the macro names may be exposed (for example, after the preprocessor has seen the import of the module but the parser has not), or all of the names may be exposed. Importing a module makes its names, and the names in any of its non-explicit submodules, visible to name lookup (transitively). This commit only introduces the notion of name visible and marks modules and submodules as visible when they are imported. The actual name-hiding logic in the AST reader will follow (along with test cases). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145586 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01Infer the submodule ID for a given declaration based on the locationDouglas Gregor
of that declaration, and encode the submodule ID in each declaration stored in an AST file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145555 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01Switch the ID numbers used for submodule IDs in the AST reader over toDouglas Gregor
a standard global/local scheme, so that submodule definitions will eventually be able to refer to submodules in other top-level modules. We'll need this functionality soonish. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145549 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30Promote ModuleMap::Module to a namespace-scope class in the BasicDouglas Gregor
library, since modules cut across all of the libraries. Rename serialization::Module to serialization::ModuleFile to side-step the annoying naming conflict. Prune a bunch of ModuleMap.h includes that are no longer needed (most files only needed the Module type). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30[PCH] In ASTReader::FinishedDeserializing, after we do ↵Argyrios Kyrtzidis
PassInterestingDeclsToConsumer we may end up having added more pending stuff to do, so go in a loop until everything is cleared out. This fixes the error in rdar://10278815 which has a certain David Lynch-esque quality.. error: unknown type name 'BOOL'; did you mean 'BOOL'? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30Implement (de-)serialization of the description of a module and itsDouglas Gregor
submodules. This information will eventually be used for name hiding when dealing with submodules. For now, we only use it to ensure that the module "key" returned when loading a module will always be a module (rather than occasionally being a FileEntry). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145497 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30When writing a module file, pass the module through to the ASTDouglas Gregor
writer. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145479 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-23[PCH] Check for isTopLevelDeclInObjCContainer when picking abbreviations.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-23[libclang] Fix operations (token annotation, getting cursor, etc.) with a ↵Argyrios Kyrtzidis
file region inside an objc container that "contains" other file-level declarations. When getting the array of file-level declarations that overlap with a file region, we failed to report that the region overlaps with an objc container, if the container had other file-level declarations declared lexically inside it. Fix this by marking such declarations as "isTopLevelDeclInObjCContainer" in the AST and handling them appropriately. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145109 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-17If we're dealing with an overridden buffer in the AST reader, load theDouglas Gregor
file as a virtual file with the stored modification time and size. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144916 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-17Try to appease the failing buildbot where I can't reproduce the problemDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144879 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16Implement (de-)serialization of the buffer contents for an overriddenDouglas Gregor
file in the source manager. This allows us to properly create and use modules described by module map files without umbrella headers (or with incompletely umbrella headers). More generally, we can actually build a PCH file that makes use of file -> buffer remappings, which could be useful in libclang in the future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15Add a -cc1-level option -fmodule-name=<name>, which will be used whenDouglas Gregor
building modules. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144680 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15[PCH] When serializing an PseudoObjectExpr or AtomicExpr, the serialization ↵Argyrios Kyrtzidis
code must be set otherwise it will crash with asserts on or it will be written as null pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144626 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15Use Decl's isImplicit field to indicate whether an ObjCInterfaceDecl is ↵Argyrios Kyrtzidis
'ImplicitInterfaceDecl', no need to store it in another field. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144624 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14[PCH] Load the chained objc categories only after recursive loading is finishedArgyrios Kyrtzidis
otherwise we may crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144524 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14[PCH] Do not crash if a class extension in a chained PCH ↵Argyrios Kyrtzidis
introduces/redeclares a property. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144520 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14[PCH] In ASTWriter::WriteChainedObjCCategories use getDeclID since the declsArgyrios Kyrtzidis
should have been already emitted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144519 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-13[PCH] When chaining a PCH and serializing HeaderSearch, make sure the ↵Argyrios Kyrtzidis
HeaderFileInfos from the primary PCH is deserialized, otherwise we lose info that headers were already #imported/#included. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144510 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-13Fix the signature of the getcontext builtin. Patch by Dimitry Andric.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144505 91177308-0d34-0410-b5e6-96231b3b80d8
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