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path: root/lib/Lex/Preprocessor.cpp
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2011-07-27Change Preprocessor::getTotalMemory() to use llvm::capacity_in_bytes().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136239 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26Report more memory using in Preprocessor::getTotalMemory() and ↵Ted Kremenek
PreprocessingRecord::getTotalMemory(). Most of the memory was already reported; but now we report more memory from side data structures. Fixes <rdar://problem/9379717>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136150 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26Rename create(MacroArg)InstantiationLoc to create(MacroArg)ExpansionLoc.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136054 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
2011-07-14Move the rest of the preprocessor terminology from 'instantiate' andChandler Carruth
variants to 'expand'. This changed a couple of public APIs, including one public type "MacroInstantiation" which is now "MacroExpansion". The rest of the codebase was updated to reflect this, especially the libclang code. Two of the C++ (and thus easily changed) libclang APIs were updated as well because they pertained directly to the old MacroInstantiation class. No functionality changed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135139 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29Introduce a caching mechanism for macro expanded tokens.Argyrios Kyrtzidis
Previously macro expanded tokens were added to Preprocessor's bump allocator and never released, even after the TokenLexer that were lexing them was finished, thus they were wasting memory. A very "useful" boost library was causing clang to eat 1 GB just for the expanded macro tokens. Introduce a special cache that works like a stack; a TokenLexer can add the macro expanded tokens in the cache, and when it finishes, the tokens are removed from the end of the cache. Now consumed memory by expanded tokens for that library is ~ 1.5 MB. Part of rdar://9327049. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134105 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29Introduce Preprocessor::getTotalMemory() and use it in CIndex.cpp, no ↵Argyrios Kyrtzidis
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134103 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
2011-04-28Parsing/AST support for Structured Exception HandlingJohn Wiegley
Patch authored by Sohail Somani. Provide parsing and AST support for Windows structured exception handling. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Fix my earlier commit to work with escaped newlines and leave breadcrumbsJohn McCall
in case we want to make a world where we can check intermediate instantiations for this kind of breadcrumb. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127221 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Add an API call to retrieve the spelling data of a token from its ↵John McCall
SourceLocation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22Introduced raw_identifier token kind.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122394 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23now the FileManager has a FileSystemOpts ivar, stop threadingChris Lattner
FileSystemOpts through a ton of apis, simplifying a lot of code. This also fixes a latent bug in ASTUnit where it would invoke methods on FileManager without creating one in some code paths in cindextext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17move getSpelling from Preprocessor to Lexer, which it is more conceptually ↵Chris Lattner
related to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119479 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17move AdvanceToTokenCharacter and getLocForEndOfToken fromChris Lattner
Preprocessor to Lexer where they make more sense. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17add a static version of PP::AdvanceToTokenCharacter.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119472 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17add a static form of the efficient PP::getSpelling method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Implement -working-directory.Argyrios Kyrtzidis
When -working-directory is passed in command line, file paths are resolved relative to the specified directory. This helps both when using libclang (where we can't require the user to actually change the working directory) and to help reproduce test cases when the reproduction work comes along. --FileSystemOptions is introduced which controls how file system operations are performed (currently it just contains the working directory value if set). --FileSystemOptions are passed around to various interfaces that perform file operations. --Opening & reading the content of files should be done only through FileManager. This is useful in general since file operations will be abstracted in the future for the reproduction mechanism. FileSystemOptions is independent of FileManager so that we can have multiple translation units sharing the same FileManager but with different FileSystemOptions. Addresses rdar://8583824. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Really^2 fix <rdar://problem/8361834>, this time without crashing.Ted Kremenek
Now MICache is a linked list (per the FIXME), where we tradeoff between MacroInfo objects being in MICache and MIChainHead. MacroInfo objects in the MICache chain are already "Destroy()'ed", so they can be reused. When inserting into MICache, we need to remove them from the regular linked list so that they aren't destroyed more than once. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Simplify loop. No functionality change.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116861 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Simplify lifetime management of MacroInfo objects in Preprocessor by having ↵Ted Kremenek
the Preprocessor maintain them in a linked list of allocated MacroInfos. This requires only 1 extra pointer per MacroInfo object, and allows us to blow them away in one place. This fixes an elusive memory leak with MacroInfos (whose exact location I couldn't still figure out despite substantial digging). Fixes <rdar://problem/8361834>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19In ~Preprocessor(), also cleanup the MacroInfo objects left-over from stray ↵Ted Kremenek
"#pragma push_macro" uses. This fixes a potential memory leak. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-03Use getSpelling to get original text of theFariborz Jahanian
c++ operator token. (radar 8328250). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-03Patch to allow alternative representation of c++Fariborz Jahanian
operators (and, or, etc.) to be used as selectors to match g++'s behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112935 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Revert my user-defined literal commits - r1124{58,60,67} pendingSean Hunt
some issues being sorted out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Implement C++0x user-defined string literals.Sean Hunt
The extra data stored on user-defined literal Tokens is stored in extra allocated memory, which is managed by the PreprocessorLexer because there isn't a better place to put it that makes sure it gets deallocated, but only after it's used up. My testing has shown no significant slowdown as a result, but independent testing would be appreciated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112458 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Tweak wording in an assertion, from dawn@burble.org.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112182 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Introduce a preprocessor code-completion hook for contexts where weDouglas Gregor
expect "natural" language and should not provide any completions, e.g., comments, string literals, #error. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112054 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Introduce basic code-completion support for preprocessor directives,Douglas Gregor
e.g., after a "#" we'll suggest #if, #ifdef, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111943 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18no need to pass bumppointer allocator into macroinfo::destroyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Random temporary string cleanup.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110807 91177308-0d34-0410-b5e6-96231b3b80d8
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
2010-07-13Modify the pragma handlers to accept and use StringRefs instead of ↵Argyrios Kyrtzidis
IdentifierInfos. When loading the PCH, IdentifierInfos that are associated with pragmas cause declarations that use these identifiers to be deserialized (e.g. the "clang" pragma causes the "clang" namespace to be loaded). We can avoid this if we just use StringRefs for the pragmas. As a bonus, since we don't have to create and pass IdentifierInfos, the pragma interfaces get a bit more simplified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108237 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08Fix memory leak in Preprocessor where MacroInfo objects in the MICache ↵Ted Kremenek
wouldn't have their associated SmallVectors get deallocated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105658 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20push some source location information down through the compiler,Chris Lattner
into ContentCache::getBuffer. This allows it to produce diagnostics on the broken #include line instead of without a location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Match MemoryBuffer API changes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23PPCallbacks: Add hook for reaching the end of the main file, and fix ↵Daniel Dunbar
DependencyFile to not do work in its destructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99257 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19Make the preprocessing record a PPCallbacks subclass itself,Douglas Gregor
eliminating the extra PopulatePreprocessingRecord object. This will become useful once we start writing the preprocessing record to precompiled headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98966 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
2010-03-17Entering the main source file in the preprocessor can fail if theDouglas Gregor
source file has been changed. Handle that failure more gracefully. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Audit all callers of SourceManager::getCharacterData(); update some ofDouglas Gregor
them to recover more gracefully on failure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98672 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Teach the one caller of SourceManager::getMemoryBufferForFile() to cope with ↵Douglas Gregor
errors git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98664 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Introduce optional "Invalid" parameters to routines that invoke theDouglas Gregor
SourceManager's getBuffer() and, therefore, could fail, along with Preprocessor::getSpelling(). Use the Invalid parameters in the literal parsers (string, floating point, integral, character) to make them robust against errors that stem from, e.g., PCH files that are not consistent with the underlying file system. I still need to audit every use caller to all of these routines, to determine which ones need specific handling of error conditions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98608 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13Use SmallString instead of SmallVectorKovarththanan Rajaratnam
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-27Move method out-of-line. I thought this would be a candidate for inlining ↵Benjamin Kramer
but I was wrong. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97330 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-27Add an overload of Preprocessor::getSpelling which takes a SmallVector andBenjamin Kramer
returns a StringRef. Use it to simplify some repetitive code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Fix subtle bug in Preprocessor::AdvanceToTokenCharacter(): use '+=' instead ↵Ted Kremenek
of '='. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-22Teach CIndex's cursor visitor to restrict its traversal to a specificDouglas Gregor
region of interest (if provided). Implement clang_getCursor() in terms of this traversal rather than using the Index library; the unified cursor visitor is more complete, and will be The Way Forward. Minor other tweaks needed to make this work: - Extend Preprocessor::getLocForEndOfToken() to accept an offset from the end, making it easy to move to the last character in the token (rather than just past the end of the token). - In Lexer::MeasureTokenLength(), the length of whitespace is zero. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94200 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-18allow the HandlerComment callback to push tokens into theChris Lattner
preprocessor. This could be used by an OpenMP implementation or something. Patch by Abramo Bagnara! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93795 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-04Teach Preprocessor::macro_begin/macro_end to lazily load all macroDouglas Gregor
definitions from a precompiled header. This ensures that code-completion with macro names behaves the same with or without precompiled headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92497 91177308-0d34-0410-b5e6-96231b3b80d8
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