Commit Graph

15 Commits

Author SHA1 Message Date
Chris Lattner e01e758e11 Change SkipBlockComment and SkipBCPLComment to return true when in
keep comment mode, instead of returning false.  This matches SkipWhitespace.

llvm-svn: 57402
2008-10-12 04:15:42 +00:00
Chris Lattner 4d96344c19 Add a new mode to the lexer which enables it to return all characters,
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 :)

llvm-svn: 57401
2008-10-12 04:05:48 +00:00
Chris Lattner 097a8b8777 Fix a couple more places that poke KeepCommentMode unnecesarily.
llvm-svn: 57398
2008-10-12 03:27:19 +00:00
Chris Lattner 8637abd333 add a new inKeepCommentMode() accessor to abstract the KeepCommentMode
ivar.

llvm-svn: 57397
2008-10-12 03:22:02 +00:00
Chris Lattner e3f863a388 fix misleading comment.
llvm-svn: 57396
2008-10-12 01:34:51 +00:00
Chris Lattner 7c2e9809b1 Simplify raw mode lexing by treating an unterminate /**/ comment the
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).

llvm-svn: 57395
2008-10-12 01:31:51 +00:00
Chris Lattner 6b0c5ad096 add a comment.
llvm-svn: 57394
2008-10-12 01:23:27 +00:00
Chris Lattner 50c9050037 Change how raw lexers are handled: instead of creating them and then
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. 

llvm-svn: 57393
2008-10-12 01:15:46 +00:00
Chris Lattner 79ef843533 silence some release-assert warnings.
llvm-svn: 57391
2008-10-12 00:28:42 +00:00
Chris Lattner 87e97ea7b8 improve a comment.
llvm-svn: 57389
2008-10-12 00:23:07 +00:00
Daniel Dunbar 12c9ddced1 Change Parser & Sema to use interned "super" for comparions.
- 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.

llvm-svn: 54794
2008-08-14 22:04:54 +00:00
Nate Begeman 5eee93328e Fix typo
llvm-svn: 49632
2008-04-14 02:26:39 +00:00
Chris Lattner 8f96d04ceb don't diagnose empty source files, thanks Neil!
llvm-svn: 49575
2008-04-12 05:54:25 +00:00
Chris Lattner 9b7206eb4f don't read off the front of the buffer. Thanks to Sam for pointing this out.
llvm-svn: 49535
2008-04-11 16:20:41 +00:00
Chris Lattner 7a51313d8a Make a major restructuring of the clang tree: introduce a top-level
lib dir and move all the libraries into it.  This follows the main
llvm tree, and allows the libraries to be built in parallel.  The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in.  This speeds
up parallel builds, particularly incremental ones.

llvm-svn: 48402
2008-03-15 23:59:48 +00:00