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2008-11-20Preprocessor::isCurrentLexer() now takes a PreprocessorLexer* argument to ↵Ted Kremenek
match against CurPPLexer instead of CurLexer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59721 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Preprocessor::getCurrentFileLexer() now returns a PreprocessorLexer* instead ofTed Kremenek
a Lexer*. This means it will either return the current (normal) file Lexer or a PTHLexer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59694 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20- Default initialize ParsingPreprocessorDirective, ParsingFilename, andTed Kremenek
LexingRawMode in the ctor of PreprocessorLexer. - PTHLexer: Use "LastToken" instead of "NumToken" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59690 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Fix comment.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59673 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Add stub for PTHLexer::isNextPPTokenLParen().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59670 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19When using a PTHLexer, use DiscardToEndOfLine() instead of ReadToEndOfLine().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59668 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19- Move static function IsNonPragmaNonMacroLexer into Preprocessor.h.Ted Kremenek
- Add variants of IsNonPragmaNonMacroLexer to accept an IncludeMacroStack entry (simplifies some uses). - Use IsNonPragmaNonMacroLexer in Preprocessor::LookupFile. - Add 'FileID' to PreprocessorLexer, and have Preprocessor query this fileid when looking up the FileEntry for a file Performance testing of -Eonly on Cocoa.h shows no performance regression because of this patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59666 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Fix this:Argyrios Kyrtzidis
With this snippet: void f(a::b); An assert is hit: Assertion failed: CachedTokens[CachedLexPos-1].getLocation() == Tok.getAnnotationEndLoc() && "The annotation should be until the most recent cached token", file ..\..\lib\Lex\PPCaching.cpp, line 98 Introduce Preprocessor::RevertCachedTokens that reverts a specific number of tokens when backtracking is enabled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59636 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Remove Preprocessor::CacheTokens boolean data member. The same functionality ↵Argyrios Kyrtzidis
can be provided by using Preprocessor::isBacktrackEnabled(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Revert 59574 (caused tests to fail).Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59579 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19- Move static function IsNonPragmaNonMacroLexer into Preprocessor.h.Ted Kremenek
- Add variants of IsNonPragmaNonMacroLexer to accept an IncludeMacroStack entry (simplifies some uses). - Use IsNonPragmaNonMacroLexer in Preprocessor::LookupFile. Performance testing of -Eonly on Cocoa.h shows no performance regression because of this patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59574 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Remove the last of the old-style Preprocessor::Diag methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59554 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18remove one more Preprocessor::Diag method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59512 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Convert the lexer and start converting the PP over to using canonical Diag ↵Chris Lattner
methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59511 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Preprocessor::PushIncludeMacroStack() should always zero out CurPPLexer.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59490 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18- Add Lexer::isPragma() accessor for clients of Lexer that aren't friends.Ted Kremenek
- Add static method to test if the current lexer is a non-macro/non-pragma lexer. - Refactor some code in PPLexerChange to use this static method. - No performance change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Add hooks to use PTHLexer::Lex instead of Lexer::Lex when CurLexer is null.Ted Kremenek
Performance tests on Cocoa.h (using the regular Lexer) shows no performance difference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59479 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18- Add 'CurPPLexer' to Preprocessor to keep track of the currentTed Kremenek
PreprocessorLexer, which will either be a 'Lexer' or 'PTHLexer'. - Added stub field 'CurPTHLexer' to keep track of the current PTHLexer. - Modified IncludeStackInfo to track both the current PTHLexer and current PreprocessorLexer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59472 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Introduction the DeclarationName class, as a single, general method ofDouglas Gregor
representing the names of declarations in the C family of languages. DeclarationName is used in NamedDecl to store the name of the declaration (naturally), and ObjCMethodDecl is now a NamedDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59441 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13Using llvm::OwningPtr<> for CurLexer and CurTokenLexer. This makes both the ↵Ted Kremenek
ownership semantics of these objects explicit within the Preprocessor and also tightens up the code (explicit deletes not needed). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59249 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Move some diagnostic handling to PreprocessorLexer.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59191 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Add virtual dtor to PreprocessorLexer.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Add LexIncludeFilename.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Move LexIncludeFilename from Lexer to PreprocessorLexer.Ted Kremenek
PreprocessorLexer now has a virtual method "IndirectLex" which allows it to call the lex method of its subclasses. This is not for performance intensive operations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59185 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Unbreak last commit.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59180 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Add Preprocessor::PushIncludeMacroStack() and ↵Ted Kremenek
Preprocessor::PopIncludeMacroStack(), two utility methods for manipulating the Preprocessor stack. These will be used to remove manually manipulation of IncludeMacroStack from the rest of the Preprocessor implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Add skeleton for PTH lexer.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Move pieces of Lexer that the Preprocessor mutates to a new base class ↵Ted Kremenek
'PreprocessorLexer'. This will also be the base class of the new Preprocessed-Token-Header (PTH) lexer. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59168 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08Introduce annotation tokens, a special kind of token, created and used only ↵Argyrios Kyrtzidis
by the parser to replace a group of tokens with a single token encoding semantic information. Will be fully utilized later for C++ nested-name-specifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28clarify comment, rename argument to avoid a subtle conflictChris Lattner
with an ivar that wasn't a bug but was confusing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58311 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27Rename Characteristic_t to CharacteristicKindChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58224 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Added method to access the raw flags of Token.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57877 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Change FormTokenWithChars to take the token kind to form, since all clientsChris Lattner
were setting a kind and then forming it. This is just a minor API cleanup, no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57404 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Add a new mode to the lexer which enables it to return all characters,Chris Lattner
even whitespace, as tokens from the file. This is enabled with L->SetKeepWhitespaceMode(true) on a raw lexer. In this mode, you too can use clang as a really complex version of 'cat' with code like this: Lexer RawLex(SourceLocation::getFileLoc(SM.getMainFileID(), 0), PP.getLangOptions(), File.first, File.second); RawLex.SetKeepWhitespaceMode(true); Token RawTok; RawLex.LexFromRawLexer(RawTok); while (RawTok.isNot(tok::eof)) { std::cout << PP.getSpelling(RawTok); RawLex.LexFromRawLexer(RawTok); } This will emit exactly the input file, with no canonicalization or other translation. Realistic clients actually do something with the tokens of course :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57401 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12add a new inKeepCommentMode() accessor to abstract the KeepCommentModeChris Lattner
ivar. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57397 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Simplify raw mode lexing by treating an unterminate /**/ comment theChris Lattner
same we we do an unterminated string or character literal. This makes it so we can guarantee that the lexer never calls into the preprocessor (which would be suicide for a raw lexer). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57395 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Change how raw lexers are handled: instead of creating them and thenChris Lattner
using LexRawToken, create one and use LexFromRawLexer. This avoids twiddling the RawLexer flag around and simplifies some code (even speeding raw lexing up a tiny bit). This change also improves the token paster to use a Lexer on the stack instead of new/deleting it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57393 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-04Add Preprocessor::RemovePragmaHandler.Daniel Dunbar
- No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57065 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26clean up a bunch of fixme's I added, by moving Chris Lattner
DirectoryLookup::DirType into SourceManager.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26Fix the rest of rdar://6243860 hopefully. This requires changing FileIDInfoChris Lattner
to whether the fileid is a 'extern c system header' in addition to whether it is a system header, most of this is spreading plumbing around. Once we have that, PPLexerChange bases its "file enter/exit" notifications to PPCallbacks to base the system header state on FileIDInfo instead of HeaderSearch. Finally, in Preprocessor::HandleIncludeDirective, mirror logic in GCC: the system headerness of a file being entered can be set due to the #includer or the #includee. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56688 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26Comment fix.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-24Rename Preprocessor::DisableBacktrack -> Preprocessor::CommitBacktrackedTokens.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55281 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-24Comment tweak.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55272 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22Allow nested backtracks.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55204 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14Change Parser & Sema to use interned "super" for comparions.Daniel Dunbar
- Added as private members for each because it is not clear where to put the common definition. Perhaps the IdentifierInfos all of these "pseudo-keywords" should be collected into one place (this would KnownFunctionIDs and Objective-C property IDs, for example). Remove Token::isNamedIdentifier. - There isn't a good reason to use strcmp when we have interned strings, and there isn't a good reason to encourage clients to do so. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54794 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-10* Remove isInSystemHeader() from DiagClient, move it to SourceManagerNico Weber
* Move FormatError() from TextDiagnostic up to DiagClient, remove now empty class TextDiagnostic * Make DiagClient optional for Diagnostic This fixes the following problems: * -html-diags (and probably others) does now output the same set of warnings as console clang does * nothing crashes if one forgets to call setHeaderSearch() on TextDiagnostic * some code duplication is removed git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54620 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-10Allow the preprocessor to cache the lexed tokens, so that we can do ↵Argyrios Kyrtzidis
efficient lookahead and backtracking. 1) New public methods added: -EnableBacktrackAtThisPos -DisableBacktrack -Backtrack -isBacktrackEnabled 2) LookAhead() implementation is replaced with a more efficient one. 3) LookNext() is removed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54611 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-10Add an accessor, patch by Csaba Hruska.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53391 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-09Add Preprocessor::LookNext method, which implements an efficient way to ↵Argyrios Kyrtzidis
'take a peek' at the next token without consuming it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53375 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-30refactor some code out into a new method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52889 91177308-0d34-0410-b5e6-96231b3b80d8
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