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path: root/lib/Lex/Preprocessor.cpp
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2008-12-01Add LangOptions marker for assembler-with-cpp mode and use to defineDaniel Dunbar
__ASSEMBLER__ properly. Patch from Roman Divacky (with minor formatting changes). Thanks! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60362 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22Move the Preprocessor::Diag methods inline. This has the interestingChris Lattner
(and carefully calculated) effect of allowing the compiler to reason about the aliasing properties of DiagnosticBuilder object better, allowing the whole thing to be promoted to registers instead of resulting in a ton of stack traffic. While I'm not very concerned about the performance of the Diag() method invocations, I *am* more concerned about their code size and impact on the non-diagnostic code. This patch shrinks the clang executable (in release-asserts mode with gcc-4.2) from 14523980 to 14519816 bytes. This isn't much, but it shrinks the lexer from 38192 to 37776, PPDirectives.o from 31116 to 28868 bytes, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59862 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22inline a method into its only two call sites.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59860 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22Split the DiagnosticInfo class into two disjoint classes:Chris Lattner
one for building up the diagnostic that is in flight (DiagnosticBuilder) and one for pulling structured information out of the diagnostic when formatting and presenting it. There is no functionality change with this patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59849 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Move more cases of using 'CurLexer' to 'CurPPLexer'.Ted Kremenek
Use PTHLexer::isNextPPTokenLParen() when using the PTHLexer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59671 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
2008-11-19Initialize CurPPLexer in Preprocessor's constructor.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59573 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
2008-11-18Convert 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
2008-11-18This reworks some of the Diagnostic interfaces a bit to change how diagnosticsChris Lattner
are formed. In particular, a diagnostic with all its strings and ranges is now packaged up and sent to DiagnosticClients as a DiagnosticInfo instead of as a ton of random stuff. This has the benefit of simplifying the interface, making it more extensible, and allowing us to do more checking for things like access past the end of the various arrays passed in. In addition to introducing DiagnosticInfo, this also substantially changes how Diagnostic::Report works. Instead of being passed in all of the info required to issue a diagnostic, Report now takes only the required info (a location and ID) and returns a fresh DiagnosticInfo *by value*. The caller is then free to stuff strings and ranges into the DiagnosticInfo with the << operator. When the dtor runs on the DiagnosticInfo object (which should happen at the end of the statement), the diagnostic is actually emitted with all of the accumulated information. This is a somewhat tricky dance, but it means that the accumulated DiagnosticInfo is allowed to keep pointers to other expression temporaries without those pointers getting invalidated. This is just the minimal change to get this stuff working, but this will allow us to eliminate the zillions of variant "Diag" methods scattered throughout (e.g.) sema. For example, instead of calling: Diag(BuiltinLoc, diag::err_overload_no_match, typeNames, SourceRange(BuiltinLoc, RParenLoc)); We will soon be able to just do: Diag(BuiltinLoc, diag::err_overload_no_match) << typeNames << SourceRange(BuiltinLoc, RParenLoc)); This scales better to support arbitrary types being passed in (not just strings) in a type-safe way. Go operator overloading?! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59502 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Change the diagnostics interface to take an array of pointers to Chris Lattner
strings instead of array of strings. This reduces string copying in some not-very-important cases, but paves the way for future improvements. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59494 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
2008-10-31Fixed build warning. No functionality change.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58503 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-31Made the mechanism of defining preprocessor defs for maxint, ptrdiff_t, wcharSanjiv Gupta
etc more generic. For some targets, long may not be equal to pointer size. For example: PIC16 has int as i16, ptr as i16 but long as i32. Also fixed a few build warnings in assert() functions in CFRefCount.cpp, CGDecl.cpp, SemaDeclCXX.cpp and ParseDeclCXX.cpp. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58501 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-06__CONSTANT_CFSTRINGS__ should be defined even in C mode, otherwise the CFSTRChris Lattner
won't expand to the builtin. This fixes rdar://6248329 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57164 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05move __FLT_EVAL_METHOD__, __FLT_RADIX__, and __DECIMAL_DIG__ intoChris Lattner
target indep code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05suck the rest of the FP macros out of the targets into the PPChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57137 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05start moving fp macros overChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57134 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05move a bunch more integer sizing out of target-specific code intoChris Lattner
target indep code. Note that this changes functionality on PIC16: it defines __INT_MAX__ correctly for it, and it changes sizeof(long) to 16-bits (to match the size of pointer). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57132 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05eliminate __USER_LABEL_PREFIX__ from the Targets.cpp file, start movingChris Lattner
integer size #defines over to the Preprocessor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57130 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05gcc no longer defines __block to nothing when blocks aren't enabled.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05rearrange preprocessor macro definitions into language-specificChris Lattner
then target specific. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57128 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05Implement PR2773, support for __USER_LABEL_PREFIX__Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30define __PASCAL_STRINGS__ whenever -fpascal-strings is enabled.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56824 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ is a darwin-specific #defineChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56822 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
2008-09-26Update clang to pretend to be gcc-4.2.Daniel Dunbar
- This really needs to be automated and configurable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-23Fix <rdar://problem/6240065> clang: __BLOCKS__ should be defined.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56503 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02- Implement __block.Steve Naroff
- Replace FIXME in Preprocessor::HandleIdentifier() with a check that avoids diagnosing extension tokens that originate from macro definitions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55639 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02Pull code from last commit. will put back soon.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55637 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02Implement block pseudo-storage class modifiers (__block, __byref).Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-23Add a safety check.Argyrios Kyrtzidis
Make sure there's no "dangling" backtrack position when Preprocessor is destroyed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55236 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-12Move some ObjC preprocessor definitions intoDaniel Dunbar
InitializePredefinedMacros(). - Also now properly wired to -fobjc-gc, -fnext-runtime. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54661 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-11remove obsolete comment.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54652 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
2008-07-19Patch byTed Kremenek
"When dumping the tokens (-dumptokens output type), the column numbers are not correctly shown. This patch fixes that issue." git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53796 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-05move the linux predefined macro definition to the TargetInfo, where it ↵Nuno Lopes
really belongs git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53149 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-05predefine the macro linux when compiled on a linux system. this fixes the ↵Nuno Lopes
build of libtidy git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53145 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26clang uses the llvm backend, so define __llvm__ like llvm-gcc. Chris Lattner
Additionally, define __clang__ so clients can predicate based on clang features. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52788 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-15Fix rewriter bug <rdar://problem/5929344> clang ObjC rewriter: "extern int ↵Steve Naroff
__CFConstantStringClassReference[];" should be extern "C". Have clang predefine OBJC_NEW_PROPERTIES (which is what gcc does). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51163 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09DO NOT pre-defined __OBJC2__. The __OBJC2__ macro should only be defined ↵Steve Naroff
when targeting the new, Apple 2.0 *runtime ABI*. It is not intended to be used to #ifdef ObjC 2.0 langauge features. This is unfortunate (given it's name). In a perfect world, this defined would be named __OBJC2_RUNTIME_ABI__. Oh well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50913 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05Neil pointed out that clang doesn't generate ranges from diagnosticsChris Lattner
related to pp-expressions. Doing so is pretty simple and this patch implements it, yielding nice diagnostics like: t.c:2:7: error: division by zero in preprocessor expression #if 1 / (0 + 0) ~ ^ ~~~~~~~ t.c:5:14: error: expected ')' in preprocessor expression #if (412 + 42 ~~~~~~~~^ t.c:5:5: error: to match this '(' #if (412 + 42 ^ t.c:10:10: warning: left side of operator converted from negative value to unsigned: -42 to 18446744073709551574 #if (-42 + 0U) / -2 ~~~ ^ ~~ t.c:10:16: warning: right side of operator converted from negative value to unsigned: -2 to 18446744073709551614 #if (-42 + 0U) / -2 ~~~~~~~~~~ ^ ~~ 5 diagnostics generated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50638 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19simplify ownership of the predefines buffer.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49973 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17class Preprocessor: Now owns the "predefines" char*; it deletes [] it in its ↵Ted Kremenek
dstor. clang.cpp: InitializePreprocessor now makes a copy of the contents of PredefinesBuffer and passes it to the preprocessor object. clang.cpp: DriverPreprocessorFactory now calls "InitializePreprocessor" instead of this being done in main(). html::HighlightMacros() now takes a PreprocessorFactory, allowing it to conjure up a new Preprocessor to highlight macros. class HTMLDiagnostics now takes a PreprocessorFactory* that it can use for html::HighlightMacros(). Updated clients of HTMLDiagnostics to use this new interface. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49875 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17Added "PreprocessorFactory", an interface for lazily creating Preprocessor ↵Ted Kremenek
objects on-demand. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49868 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18move #include to the file that needs it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48485 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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