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path: root/lib/Lex/Pragma.cpp
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2009-09-09Remove tabs, and whitespace cleanups.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-12add push/pop semantics for diagnostics. Patch by Louis Gerbarg!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75431 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02Add support for retrieving the Doxygen comment associated with a givenDouglas Gregor
declaration in the AST. The new ASTContext::getCommentForDecl function searches for a comment that is attached to the given declaration, and returns that comment, which may be composed of several comment blocks. Comments are always available in an AST. However, to avoid harming performance, we don't actually parse the comments. Rather, we keep the source ranges of all of the comments within a large, sorted vector, then lazily extract comments via a binary search in that vector only when needed (which never occurs in a "normal" compile). Comments are written to a precompiled header/AST file as a blob of source ranges. That blob is only lazily loaded when one requests a comment for a declaration (this never occurs in a "normal" compile). The indexer testbed now supports comment extraction. When the -point-at location points to a declaration with a Doxygen-style comment, the indexer testbed prints the associated comment block(s). See test/Index/comments.c for an example. Some notes: - We don't actually attempt to parse the comment blocks themselves, beyond identifying them as Doxygen comment blocks to associate them with a declaration. - We won't find comment blocks that aren't adjacent to the declaration, because we start our search based on the location of the declaration. - We don't go through the necessary hops to find, for example, whether some redeclaration of a declaration has comments when our current declaration does not. Similarly, we don't attempt to associate a \param Foo marker in a function body comment with the parameter named Foo (although that is certainly possible). - Verification of my "no performance impact" claims is still "to be done". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18Fix a crash that can occur when a #pragma handler eats to the end of theChris Lattner
line, and when the pragma is at the end of a file. In this case, the last token consumed could pop the lexer, invalidating CurPPLexer. Thanks to Peter Thoman for pointing it out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-15Fix #pragma GCC system_header by making it insert a virtual linemarker intoChris Lattner
the file at the point of the pragma. This allows clang to know that all sourcelocations after the pragma are in a system header. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-12accept "#pragma clang foo" where we accept "#pragma GCC foo".Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71572 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19implement "#pragma GCC diagnostic". Besides being a nice feature, thisChris Lattner
will let us test for multiple different warning modes in the same file in regression tests. This implements rdar://2362963, a 10-year old feature request :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69560 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Warn about uses of #pragma STDC FENV_ACCESS ON, since we don't Chris Lattner
support it. I don't know what evaluation method we use for complex arithmetic, so I don't know whether/if we should warn about use of CX_LIMITED_RANGE. This concludes my planned hacking on STDC pragmas, flame away :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69556 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19diagnose invalid syntax of STDC pragmas.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69554 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19reject invalid stuff in the STDC namespace.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69551 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19stub out STDC #pragmas.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69550 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19basic support for -Wunknown-pragmas, more coming.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69547 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14Fix the #import / #include_next "extra tokens at end of #foo directive" Chris Lattner
Warning to properly report that it is an import/include_next instead of claiming it is a #include. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69023 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-17typoGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67081 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08simplify some logic by making ScratchBuffer handle the application of trailingChris Lattner
\0's to created tokens instead of making all clients do it. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-15track "just a little more" location information for macro instantiations.Chris Lattner
Now instead of just tracking the expansion history, also track the full range of the macro that got replaced. For object-like macros, this doesn't change anything. For _Pragma and function-like macros, this means we track the locations of the ')'. This is required for PR3579 because apparently GCC uses the line of the ')' of a function-like macro as the location to expand __LINE__ to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29move library-specific diagnostic headers into library private dirs. ReduceChris Lattner
redundant #includes. Patch by Anders Johnsen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63271 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27Split the single monolithic DiagnosticKinds.def file into oneChris Lattner
.def file for each library. This means that adding a diagnostic to sema doesn't require all the other libraries to be rebuilt. Patch by Anders Johnsen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63111 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-26This change refactors some of the low-level lexer interfaces a bit.Chris Lattner
Token now has a class of kinds for "literals", which include numeric constants, strings, etc. These tokens can optionally have a pointer to the start of the token in the lexer buffer. This makes it faster to get spelling and do other gymnastics, because we don't have to go through source locations. This change is performance neutral, but will make other changes more feasible down the road. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63028 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19Make SourceLocation::getFileLoc private to reduce the API exposure of Chris Lattner
SourceLocation. This requires making some cleanups to token pasting and _Pragma expansion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Change the Lexer ctor used to lex _Pragma directives into a static factoryChris Lattner
method. This lets us clean up the interface and make it more obvious that this method is *really really* _Pragma specific. Note that _Pragma handling uglifies the Lexer in the critical path. It would be very interesting to consider making _Pragma remapping be a new special lexer class of its own. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62425 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17this massive patch introduces a simple new abstraction: it makesChris Lattner
"FileID" a concept that is now enforced by the compiler's type checker instead of yet-another-random-unsigned floating around. This is an important distinction from the "FileID" currently tracked by SourceLocation. *That* FileID may refer to the start of a file or to a chunk within it. The new FileID *only* refers to the file (and its #include stack and eventually #line data), it cannot refer to a chunk. FileID is a completely opaque datatype to all clients, only SourceManager is allowed to poke and prod it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16only notify callbacks if they exist.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62334 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Improve #pragma comment support by building the string argument andChris Lattner
notifying PPCallbacks about it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62333 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Implement basic support for parsing #pragma comment, a microsoft extensionChris Lattner
documented here: http://msdn.microsoft.com/en-us/library/7f0aews7(VS.80).aspx This is according to my understanding reading the docs, I don't know if it really agrees fully with what VC++ allows. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62317 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Just use the SourceLocation of SysHeaderTok when doing a callback to emit #lineTed Kremenek
information. A diff of the -E output for Cocoa.h shows that there is no change in output. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59693 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Use PreprocessorLexer::getFileID() instead of Lexer::getFileLoc(). This is ↵Ted Kremenek
an intermediate step to having getCurrentLexer() return a PreprocessorLexer* instead of a Lexer*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59672 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
2008-11-18remove 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
2008-11-18Replace more uses of 'CurLexer->' with 'CurPPLexer->'. No performance change.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59482 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
2008-08-11More #include cleaningDaniel Dunbar
- Kill unnecessary #includes in .cpp files. This is an automatic sweep so some things removed are actually used, but happen to be included by a previous header. I tried to get rid of the obvious examples and this was the easiest way to trim the #includes in one fell swoop. - We now return to regularly scheduled development. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54632 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-15Make a major restructuring of the clang tree: introduce a top-levelChris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48402 91177308-0d34-0410-b5e6-96231b3b80d8
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