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path: root/lib/Serialization/ASTReader.cpp
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2011-09-19Introduce PreprocessingRecord::getPreprocessedEntitiesInRange()Argyrios Kyrtzidis
which will do a binary search and return a pair of iterators for preprocessed entities in the given source range. Source ranges of preprocessed entities are stored twice currently in the PCH/Module file but this will be fixed in a subsequent commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140058 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Rename SourceLocation::getFileLocWithOffset -> getLocWithOffset.Argyrios Kyrtzidis
It already works (and is useful with) macro locs as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140057 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Const-ify some methods in ASTReader.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19[PCH] Preload the PreloadSLocEntries through the SourceManager andArgyrios Kyrtzidis
don't call ReadSLocEntryRecord() directly because the entry may have already been loaded in which case calling ReadSLocEntryRecord() directly would trigger an assertion in SourceManager. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140052 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15When we load the first module, make sure that we wire up the ASTConsumer to ↵Douglas Gregor
the newly-created ASTReader. This makes sure that CodeGen sees the declarations it is interested in git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139824 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15[PCH] Overhaul how preprocessed entities are [de]serialized.Argyrios Kyrtzidis
-Use an array of offsets for all preprocessed entities -Get rid of the separate array of offsets for just macro definitions; for references to macro definitions use an index inside the preprocessed entities array. -Deserialize each preprocessed entity lazily, at first request; not in bulk. Paves the way for binary searching of preprocessed entities that will offer efficiency and will simplify things on the libclang side a lot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13[PCH] Fix a regression that r139441 introduced (decls were getting passedArgyrios Kyrtzidis
to the consumer without being fully deserialized). The regression was on compiling boost.python and it was too difficult to get a reduced test case unfortunately. Also modify the logic of how objc methods are getting passed to the consumer; codegen depended on receiving objc methods before the implementation decl. Since the interesting objc methods are ones with a body and such methods only exist inside an ObjCImplDecl, deserialize and pass to consumer all the methods of ObCImplDecl when we see one. Fixes http://llvm.org/PR10922 & rdar://10117105. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139644 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Switch the serialization of LangOptions over to use the .def file. WeDouglas Gregor
should no longer have the serialization of LangOptions out of sync with the structure itself (yay). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139613 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Switch LangOptions over to a .def file that describes header of theDouglas Gregor
language options. Use that .def file to declare the LangOptions class and initialize all of its members, eliminating a source of annoying initialization bugs. AST serialization changes are next up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139605 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
2011-09-10Don't crash when we fail to load a module. It's unbecoming of aDouglas Gregor
well-bred compiler like Clang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139442 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09In the ASTReader, replace the never-NULL Preprocessor pointer with aDouglas Gregor
Preprocessor reference. Simplify some code along the way, so there is no separate "initialize the preprocessor" step. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139418 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09In ASTReader, replace the never-NULL ASTContext pointer with anDouglas Gregor
ASTContext reference. Remove all of the extra checking and logic that was used to cope with a NULL ASTContext. No effective functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09Mark the translation unit as having lexical/visible storage only when we ↵Douglas Gregor
actually have data for that lexical or visible storage git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139409 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09Back out r139358 "[PCH] When loading the decls linked to anDouglas Gregor
identifier, also make them visible in the translation unit," which isn't needed now that John's eliminated the AST dependency in blocks CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139408 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09[PCH] When loading the decls linked to an identifier, also make them visibleArgyrios Kyrtzidis
in the translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139358 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08[libclang] Fix annotation and getting a "macro expansion" cursorArgyrios Kyrtzidis
for a builtin macro expansion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139298 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08Implement the Objective-C 'instancetype' type, which is an alias ofDouglas Gregor
'id' that can be used (only!) via a contextual keyword as the result type of an Objective-C message send. 'instancetype' then gives the method a related result type, which we have already been inferring for a variety of methods (new, alloc, init, self, retain). Addresses <rdar://problem/9267640>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139275 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
2011-09-01Modules 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
2011-09-01Support importing of ObjC categories from modules.Argyrios Kyrtzidis
The initial incentive was to fix a crash when PCH chaining categories to an interface, but the fix was done in the "modules way" that I hear is popular with the kids these days. Each module stores the local chain of categories and we combine them when the interface is loaded. We also warn if non-dependent modules introduce duplicate named categories. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138926 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30Remove obsolete ObjCInferRelatedReturnType from LangOptions...the correct ↵Jordy Rose
option is ObjCInferRelatedResultType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Remove unused variables noticed by GCC.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138707 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Teach the ASTReader how to avoid cycles when loading declarations thatDouglas Gregor
are lexically within a particular DeclContext. Test forthcoming. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138668 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Clean up the reloading of identifier information following the load ofDouglas Gregor
a top-level module. This code is still horrible and should go away, but we're not there yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138586 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Preload source location entries as soon as we've loaded a particularDouglas Gregor
AST file, rather than waiting until we finish loading the top-level AST file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138585 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Move file validation in the ASTReader from "top of chain" validationDouglas Gregor
to "when loading a particular module" validation, since it was only validating local information anyway. This shouldn't change anything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138583 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Factor the Module and ModuleManager classes out into separate headersDouglas Gregor
and .cpp files, since ASTReader.cpp was getting way too large. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138582 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Switch ASTReader::GetHeaderFileInfo() from a walk over the moduleDouglas Gregor
chain to a proper search. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138574 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Switch the forward walk through the module chain over to a depth-firstDouglas Gregor
search in ASTReader::ReadPreprocessedEntities(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138572 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Use the module manager's search facility to look for methods with aDouglas Gregor
given selector, rather than walking the chain backwards. Teach its visitor how to merge multiple result sets into a single result set, combining the results of selector lookup in several different modules into a single result set. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138556 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24Don't force the complete deserialization of the visible-declarationsDouglas Gregor
table when serializing an AST file. This was a holdover from the days before chained PCH, and is a complete waste of time and storage now. It's a good thing it's useless, because I have no idea how I would have implemented MaterializeVisibleDecls efficiently in the presence of modules. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138496 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24Introduce a depth-first search of modules into the module manager,Douglas Gregor
which supports both pre-order and post-order traversal via a visitor mechanism. Use this depth-first search with a post-order traversal to give predictable ordering semantics when walking all of the lexical declarations in the translation unit. Eventually, module imports will occur in the source code rather than at the beginning, and we'll have to revisit this walk. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138490 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24In the AST reader, switch name lookup within a DeclContect over to theDouglas Gregor
module DAG-based lookup scheme. This required some reshuffling, so that each module stores its own mapping from DeclContexts to their lexical and visible sets for those DeclContexts (rather than one big "chain"). Overall, this allows simple qualified name lookup into the translation unit to gather results from multiple modules, with the lookup results in module B shadowing the lookup results in module A when B imports A. Walking all of the lexical declarations in a module DAG is still a mess; we'll end up walking the loaded module list backwards, which works fine for chained PCH but doesn't make sense in a DAG. I'll tackle this issue as a separate commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138463 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-21Boost the efficiency of SourceManager::getMacroArgExpandedLocation.Argyrios Kyrtzidis
Currently getMacroArgExpandedLocation is very inefficient and for the case of a location pointing at the main file it will end up checking almost all of the SLocEntries. Make it faster: -Use a map of macro argument chunks to their expanded source location. The map is for a single source file, it's stored in the file's ContentCache and lazily computed, like the source lines cache. -In SLocEntry's FileInfo add an 'unsigned NumCreatedFIDs' field that keeps track of the number of FileIDs (files and macros) that were created during preprocessing of that particular file SLocEntry. This is useful when computing the macro argument map in skipping included files while scanning for macro arg FileIDs that lexed from a specific source file. Due to padding, the new field does not increase the size of SLocEntry. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138225 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-20Make the loading of multiple records for the same identifier (fromDouglas Gregor
different modules) more robust. It already handled (simple) merges of the set of declarations attached to that identifier, so add a test case that shows us getting two different declarations for the same identifier (one struct, one function) from different modules, and are able to use both of them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138189 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-20Clean out some minor cruft in the AST reader; no functionality change.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138188 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-20Introduce a module visitation function that starts at the top-levelDouglas Gregor
modules (those that no other module depends on) and performs a search over all of the modules, visiting a new module only when all of the modules that depend on it have already been visited. The visitor can abort the search for all modules that a module depends on, which allows us to minimize the number of lookups necessary when performing a search. Switch identifier lookup from a linear walk over the set of modules to this module visitation operation. The behavior is the same for simple PCH and chained PCH, but provides the proper search order for modules. Verified with printf debugging, since we don't have enough in place to actually test this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138187 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-19Remove unused function ModuleManager::exportLookup()Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138079 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-19Teach ModuleManager::addModule() to check whether a particular moduleDouglas Gregor
has already been loaded before allocating a new Module structure. If the module has already been loaded (uniquing based on file name), then just return the existing module rather than trying to load it again. This allows us to load a DAG of modules. Introduce a simple test case that forms a diamond-shaped module graph, and illustrates that a source file importing the bottom of the diamond can see declarations in all four of the modules that make up the diamond. Note that this version moves the file-opening logic into the module manager, rather than splitting it between the module manager and the AST reader. More importantly, it properly handles the weird-but-possibly-useful case of loading an AST file from "-". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138030 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-18Temporarily revert r137925 to appease buildbots. Original commit message:Chad Rosier
Teach ModuleManager::addModule() to check whether a particular module has already been loaded before allocating a new Module structure. If the module has already been loaded (uniquing based on file name), then just return the existing module rather than trying to load it again. This allows us to load a DAG of modules. Introduce a simple test case that forms a diamond-shaped module graph, and illustrates that a source file importing the bottom of the diamond can see declarations in all four of the modules that make up the diamond. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-18Teach ModuleManager::addModule() to check whether a particular moduleDouglas Gregor
has already been loaded before allocating a new Module structure. If the module has already been loaded (uniquing based on file name), then just return the existing module rather than trying to load it again. This allows us to load a DAG of modules. Introduce a simple test case that forms a diamond-shaped module graph, and illustrates that a source file importing the bottom of the diamond can see declarations in all four of the modules that make up the diamond. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137925 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-18Keep track of which modules have been loaded directly (e.g., viaDouglas Gregor
-import-module) vs. loaded because some other module depends on them. As part of doing this, pass down the module that caused a module to be loaded directly, rather than assuming that we're loading a chain. Finally, write out all of the directly-loaded modules when serializing an AST file (using the new IMPORTS record), so that an AST file can depend on more than one other AST file, all of which will be loaded when that AST file is loaded. This allows us to form and load a tree of modules, but we can't yet load a DAG of modules. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137923 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
2011-08-12Switch the __int128_t and __uint128_t types over to predefined typesDouglas Gregor
in the AST format, which are built lazily by the ASTContext when requested. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137437 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Switch the Objective-C 'SEL' type over to a predefined type in theDouglas Gregor
AST file format, lazily generating the actual declaration in ASTContext as needed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137434 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Switch the Objective-C 'Class' type over to a predefined type in theDouglas Gregor
AST file format, lazily generating the actual declaration in ASTContext as needed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137431 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Move the creation of the predefined typedef for Objective-C's 'id'Douglas Gregor
type over into the AST context, then make that declaration a predefined declaration in the AST format. This ensures that different AST files will at least agree on the (global) declaration ID for 'id', and eliminates one of the "special" types in the AST file format. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137429 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12In the serialized AST format, make the translation unit a "predefined"Douglas Gregor
declaration that never actually gets serialized. Instead, serialize the various kinds of update records (lexical decls, visible decls, the addition of an anonymous namespace) for the translation unit, even if we're not chaining. This way, we won't have to deal with multiple loaded translation unit declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137395 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11Fix a PCH crash bug where we kept a reference inside a DenseMap while the ↵Argyrios Kyrtzidis
map was getting modified. No test case, sorry. It's one of those bugs where it's really really hard to make one. rdar://9910862. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137383 91177308-0d34-0410-b5e6-96231b3b80d8
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