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* Basic: import SmallString<> into clang namespaceDylan Noblesmith2012-02-051-7/+7
| | | | | | | (I was going to fix the TODO about DenseMap too, but that would break self-host right now. See PR11922.) llvm-svn: 149799
* Per discussion on cfe-dev, remove '#error' and '#warning' from diagnostic text.Ted Kremenek2012-02-021-2/+10
| | | | llvm-svn: 149566
* Remove unreachable code in Clang. (replace with llvm_unreachable where ↵David Blaikie2012-01-171-1/+0
| | | | | | appropriate or when GCC requires it) llvm-svn: 148292
* Re-uglify #public and #private to #__public_macro and #__private_macro.Douglas Gregor2012-01-031-6/+6
| | | | llvm-svn: 147469
* Eliminate the uglified keyword __import_module__ for importingDouglas Gregor2012-01-031-2/+3
| | | | | | | | | | | | | modules. This leaves us without an explicit syntax for importing modules in C/C++, because such a syntax needs to be discussed first. In Objective-C/Objective-C++, the @import syntax is used to import modules. Note that, under -fmodules, C/C++ programs can import modules via the #include mechanism when a module map is in place for that header. This allows us to work with modules in C/C++ without committing to a syntax. llvm-svn: 147467
* Under -fmodules, accept #public <macroname> and #private <macroname>Douglas Gregor2012-01-031-11/+16
| | | | | | | to make a macro public (the default for headers) or private, respectively. llvm-svn: 147455
* Add a "Modules" language option, which subsumes the previousDouglas Gregor2012-01-031-2/+2
| | | | | | "AutoModuleImport" preprocessor option and is tied to -fmodules. llvm-svn: 147448
* Detect when mapping a #include/#import over to a submodule ends upDouglas Gregor2011-12-201-3/+4
| | | | | | | | | | | | | hitting a submodule that was never actually created, e.g., because that header wasn't parsed. In such cases, complain (because the module's umbrella headers don't cover everything) and fall back to including the header. Later, we'll add a warning at module-build time to catch all such cases. However, this fallback is important to eliminate assertions in the ASTWriter when this happens. llvm-svn: 146933
* Don't allow #include (and its friends #import, #include_next andRichard Smith2011-12-161-2/+18
| | | | | | | | #__include_macros) in the arguments of a function-style macro. Directives in the arguments of such macros have undefined behaviour, and GCC does not correctly support these cases. In some situations, this can lead to better diagnostics. llvm-svn: 146765
* Keep track of import dependencies between submodules within the moduleDouglas Gregor2011-12-081-7/+19
| | | | | | | that's currently being built. This is important for supporting transitive dependencies ("export *" in the module map) completely. llvm-svn: 146156
* When we treat an #include or #import as a module import, create anDouglas Gregor2011-12-021-1/+2
| | | | | | | implicit ImportDecl in the translation unit to record the presence of the import. llvm-svn: 145727
* Introduce the notion of name visibility into modules. For a givenDouglas Gregor2011-12-011-2/+4
| | | | | | | | | | | | | | (sub)module, all of the names may be hidden, just the macro names may be exposed (for example, after the preprocessor has seen the import of the module but the parser has not), or all of the names may be exposed. Importing a module makes its names, and the names in any of its non-explicit submodules, visible to name lookup (transitively). This commit only introduces the notion of name visible and marks modules and submodules as visible when they are imported. The actual name-hiding logic in the AST reader will follow (along with test cases). llvm-svn: 145586
* Promote ModuleMap::Module to a namespace-scope class in the BasicDouglas Gregor2011-11-301-3/+3
| | | | | | | | | library, since modules cut across all of the libraries. Rename serialization::Module to serialization::ModuleFile to side-step the annoying naming conflict. Prune a bunch of ModuleMap.h includes that are no longer needed (most files only needed the Module type). llvm-svn: 145538
* Note that we'll need to handle __include_macros specially in the module loaderDouglas Gregor2011-11-301-0/+1
| | | | llvm-svn: 145514
* Move the module auto-import logic after the logic that allows aDouglas Gregor2011-11-301-29/+29
| | | | | | | | | | callback client to suggest an alternative search path and after we complain when the included file can't be found. The former can't be tested in isolation, the latter doesn't actually matter (because we won't make a module suggestion if no header is available). However, the flow is better this way. llvm-svn: 145502
* Trivial indentation fix for the code I just committedDouglas Gregor2011-11-301-3/+3
| | | | llvm-svn: 145501
* Introduce an opt-in warning indicating when the compiler is treatingDouglas Gregor2011-11-301-0/+42
| | | | | | an #include/#import as a module import. llvm-svn: 145500
* Switch the module-loading interfaces and parser from a simpleDouglas Gregor2011-11-301-7/+11
| | | | | | | top-level module name to a module path (e.g., std.vector). We're still missing a number of pieces for this actually to do something. llvm-svn: 145462
* Allow preprocessor callbacks to recover from a "file not found" error,Douglas Gregor2011-11-201-4/+23
| | | | | | from Jason Haslam! llvm-svn: 145012
* When making a suggestion regarding which module to load rather thanDouglas Gregor2011-11-171-4/+8
| | | | | | | preprocess/parse a header, report back with an actual module (which may be a submodule) rather than just the name of the module. llvm-svn: 144925
* For modules, all macros that aren't include guards are implicitlyDouglas Gregor2011-10-171-2/+35
| | | | | | | public. Add a __private_macro__ directive to hide a macro, similar to the __module_private__ declaration specifier. llvm-svn: 142188
* -Wc++98-compat warnings for the lexer.Richard Smith2011-10-151-2/+6
| | | | | | | | This also adds a -Wc++98-compat-pedantic for warning on constructs which would be diagnosed by -std=c++98 -pedantic (that is, it warns even on C++11 features which we enable by default, with no warning, in C++98 mode). llvm-svn: 142034
* A couple random preprocessor changes that got ported from C99 to C++11.Eli Friedman2011-10-101-2/+4
| | | | llvm-svn: 141596
* Add explicit attributes to mark functions as having had theirJohn McCall2011-09-301-0/+9
| | | | | | | | | | | CoreFoundation object-transfer properties audited, and add a #pragma to cause them to be automatically applied to functions in a particular span of code. This has to be implemented largely in the preprocessor because of the requirement that the region be entirely contained in a single file; that's hard to impose from the parser without registering for a ton of callbacks. llvm-svn: 140846
* Introduce a callback to PPCallbacks for lines skipped by the preprocessor.Argyrios Kyrtzidis2011-09-271-3/+10
| | | | | | Patch by Jason Haslam! llvm-svn: 140612
* Rename Diagnostic to DiagnosticsEngine as per issue 5397David Blaikie2011-09-251-1/+1
| | | | llvm-svn: 140478
* Add an experimental flag -fauto-module-import that automatically turnsDouglas Gregor2011-09-151-4/+18
| | | | | | | #include or #import direcctives of framework headers into module imports of the corresponding framework module. llvm-svn: 139860
* Support code-completion for C++ inline methods and ObjC buffering methods.Argyrios Kyrtzidis2011-09-041-2/+5
| | | | | | | | | | | | | | Previously we would cut off the source file buffer at the code-completion point; this impeded code-completion inside C++ inline methods and, recently, with buffering ObjC methods. Have the code-completion inserted into the source buffer so that it can be buffered along with a method body. When we actually hit the code-completion point the cut-off lexing or parsing. Fixes rdar://10056932&8319466 llvm-svn: 139086
* Modules hide macro definitions by default, so that silly things likeDouglas Gregor2011-09-011-0/+34
| | | | | | | | | | | include guards don't show up as macro definitions in every translation unit that imports a module. Macro definitions can, however, be exported with the intentionally-ugly #__export_macro__ directive. Implement this feature by not even bothering to serialize non-exported macros to a module, because clients of that module need not (should not) know that these macros even exist. llvm-svn: 138943
* Change err_pp_file_not_found back to an Error; when it's a Warning, we ↵Eli Friedman2011-08-301-1/+2
| | | | | | | | suppress it in system headers. And it is not a good idea to suppress it in system headers. (This was originally changed in r134996 to implement -MG.) Fixes <rdar://10041960>. And also brings down the number of warnings without a flag by one :) llvm-svn: 138842
* Don't warn on varaidic macros in C++0x mode.Eli Friedman2011-08-221-2/+2
| | | | llvm-svn: 138257
* Add support for C++0x unicode string and character literals, from Craig Topper!Douglas Gregor2011-07-271-2/+2
| | | | llvm-svn: 136210
* Rename getDecomposedInstantiationLoc to getDecomposedExpansionLoc.Chandler Carruth2011-07-251-2/+2
| | | | llvm-svn: 135962
* remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner2011-07-231-15/+15
| | | | | | | | LLVM.h imports them into the clang namespace. llvm-svn: 135852
* Implement -MG. Fixes PR9613Peter Collingbourne2011-07-121-4/+5
| | | | llvm-svn: 134996
* Don't warn for unused macro when undef'ing it, if it comes from an included ↵Argyrios Kyrtzidis2011-07-111-1/+1
| | | | | | file. rdar://9745065 llvm-svn: 134919
* Replace an unreachable error path with an assertPeter Collingbourne2011-06-301-4/+1
| | | | | | | (SourceManager::createFileID cannot return an invalid file ID). Also update a comment to reflect this. llvm-svn: 134168
* Make more use of llvm::StringRef in various APIs. In particular, don'tJay Foad2011-06-211-4/+2
| | | | | | use the deprecated forms of llvm::StringMap::GetOrCreateValue(). llvm-svn: 133515
* Only ignore extra tokens after #else if we skip it, otherwise warn. Fixes ↵Argyrios Kyrtzidis2011-05-211-1/+3
| | | | | | rdar://9475098. llvm-svn: 131788
* To be able to replay compilations we need to accurately remodel howManuel Klimek2011-04-261-8/+12
| | | | | | | | | includes get resolved, especially when they are found relatively to another include file. We also try to get it working for framework includes, but that part of the code is untested, as I don't have a code base that uses it. llvm-svn: 130246
* fix a bunch of comment typos found by codespell. Patch byChris Lattner2011-04-151-1/+1
| | | | | | Luis Felipe Strano Moraes! llvm-svn: 129559
* Add a 'RawPath' parameter to the PPCallbacks interface. This allowsChandler Carruth2011-03-161-12/+20
| | | | | | | | | | | | | | | clients to observe the exact path through which an #included file was located. This is very useful when trying to record and replay inclusion operations without it beind influenced by the aggressive caching done inside the FileManager to avoid redundant system calls and filesystem operations. The work to compute and return this is only done in the presence of callbacks, so it should have no effect on normal compilation. Patch by Manuel Klimek. llvm-svn: 127742
* Rename tok::eom to tok::eod.Peter Collingbourne2011-02-281-45/+45
| | | | | | | | The previous name was inaccurate as this token in fact appears at the end of every preprocessing directive, not just macro definitions. No functionality change, except for a diagnostic tweak. llvm-svn: 126631
* Reimplement __pragma support using a TokenLexerPeter Collingbourne2011-02-221-0/+1
| | | | llvm-svn: 126221
* Make TokenLexer capable of storing preprocessor directive tokensPeter Collingbourne2011-02-221-3/+5
| | | | llvm-svn: 126220
* When redefining a macro don't warn twice if it's not used and don't warn for ↵Argyrios Kyrtzidis2011-01-181-1/+3
| | | | | | | | duplicate definition by command line options. Fixes rdar://8875916. llvm-svn: 123767
* fix rdar://8823139, a crash on a comment in a preprocessed .s fileChris Lattner2011-01-061-0/+6
| | | | | | that contains the ## operator. llvm-svn: 122946
* Fix PR8654, ensuring each branch of an #if, #elif, #else, ... chainChandler Carruth2011-01-031-1/+12
| | | | | | | | receives a PPCallback. Patch by Richard Smith. llvm-svn: 122755
* Change all self assignments X=X to (void)X, so that we can turn on aJeffrey Yasskin2010-12-231-2/+2
| | | | | | | | | new gcc warning that complains on self-assignments and self-initializations. Fix one bug found by the warning, in which one clang::OverloadCandidate constructor failed to initialize its FunctionTemplate member. llvm-svn: 122459
* Introduced raw_identifier token kind.Abramo Bagnara2010-12-221-7/+3
| | | | llvm-svn: 122394
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