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2009-01-09Replace DeclContext's vector of ScopedDecl pointers with a linked listDouglas Gregor
of ScopedDecls (using the new ScopedDecl::NextDeclInScope pointer). Performance-wise: - It's a net win in memory utilization, since DeclContext is now one pointer smaller than it used to be (std::vectors are typically 3 pointers; we now use 2 pointers) and - Parsing Cocoa.h with -fsyntax-only (with a Release-Asserts Clang) is about 1.9% faster than before, most likely because we no longer have the memory allocations and copying associated with the std::vector. I'll re-enable serialization of DeclContexts once I've sorted out the NextDeclarator/NextDeclInScope question. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62001 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-07Don't ICE when messaging on 'super' receiver when classFariborz Jahanian
of category implementation is undeclared. Issue error instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61882 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-07Finished semantic analysis of anonymous unions in C++.Douglas Gregor
Duplicate-member checking within classes is still a little messy, and anonymous unions are still completely broken in C. We'll need to unify the handling of fields in C and C++ to make this code applicable in both languages. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61878 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-07Initial implementation of anonymous unions (and, as a GNU extension,Douglas Gregor
structures and classes) in C++. Covers name lookup and the synthesis and member access for the unnamed objects/fields associated with anonymous unions. Some C++ semantic checks are still missing (anonymous unions can't have function members, static data members, etc.), and there is no support for anonymous structs or unions in C. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61840 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-06Oops. Un-publicify SrcMgr::ContentCache::Buffer.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61790 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-06Add QualifiedDeclRefExpr, which retains additional source-locationDouglas Gregor
information for declarations that were referenced via a qualified-id, e.g., N::C::value. We keep track of the location of the start of the nested-name-specifier. Note that the difference between QualifiedDeclRefExpr and DeclRefExpr does have an effect on the semantics of function calls in two ways: 1) The use of a qualified-id instead of an unqualified-id suppresses argument-dependent lookup 2) If the name refers to a virtual function, the qualified-id version will call the function determined statically while the unqualified-id version will call the function determined dynamically (by looking up the appropriate function in the vtable). Neither of these features is implemented yet, but we do print out qualified names for QualifiedDeclRefExprs as part of the AST printing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-06rename tok::annot_qualtypename -> tok::annot_typename, which is bothChris Lattner
shorter and more accurate. The type name might not be qualified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61788 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-06Misc changes to SourceManager::ContentCache:Ted Kremenek
- 'Buffer' is now private and must be accessed via 'getBuffer()'. This paves the way for lazily mapping in source files on demand. - Added 'getSize()' (which gets the size of the content without necessarily accessing the MemBuffer) and 'getSizeBytesMapped()'. - Modifed SourceManager to use these new methods. This reduces the number of places that actually access the MemBuffer object for a file to those that actually look at the character data. These changes result in no performance change for -fsyntax-only on Cocoa.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61782 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05PODness and Type TraitsSebastian Redl
Make C++ classes track the POD property (C++ [class]p4) Track the existence of a copy assignment operator. Implicitly declare the copy assignment operator if none is provided. Implement most of the parsing job for the G++ type traits extension. Fully implement the low-hanging fruit of the type traits: __is_pod: Whether a type is a POD. __is_class: Whether a type is a (non-union) class. __is_union: Whether a type is a union. __is_enum: Whether a type is an enum. __is_polymorphic: Whether a type is polymorphic (C++ [class.virtual]p1). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61746 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05remove optimization to avoid looking ahead for cases like ::foo. ThisChris Lattner
isn't worth the complexity and the code already does a ton of lookahead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-05ParseCXXSimpleTypeSpecifier can only be called on things that areChris Lattner
verified to be simple type specifiers, so there is no need for it to call TryAnnotateTypeOrScopeToken. Make MaybeParseCXXScopeSpecifier reject ::new and ::delete with a hard error now that it may never be transitively called in a context where these are legal. This allows me to start disentangling things more. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61659 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-30Parser support for C++ using directives, from Piotr RakDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-26Add full dllimport / dllexport support: both sema checks and codegen.Anton Korobeynikov
Patch by Ilya Okonsky git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61437 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25Add parser support for __forceinline, __w64, __ptr64.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61431 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25Add parser support for __cdecl, __stdcall, and __fastcall.Steve Naroff
Change preprocessor implementation of _cdecl to reference __cdecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24Add explicit "fuzzy" parse support for Microsoft declspec.Steve Naroff
Remove previous __declspec macro that would effectively erase the construct prior to parsing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61422 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24Keep track of template arguments when we parse them. Right now, we don't ↵Douglas Gregor
actually do anything with the template arguments, but they'll be used to create template declarations git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24Correct the order in which we cope with end-of-class-definitionDouglas Gregor
semantics and improve our handling of default arguments. Specifically, we follow this order: - As soon as the see the '}' in the class definition, the class is complete and we add any implicit declarations (default constructor, copy constructor, etc.) to the class. - If there are any default function arguments, parse them - If there were any inline member function definitions, parse them As part of this change, we now keep track of the the fact that we've seen unparsed default function arguments within the AST. See the new ParmVarDecl::hasUnparsedDefaultArg member. This allows us to properly cope with calls inside default function arguments to other functions where we're making use of the default arguments. Made some C++ error messages regarding failed initializations more specific. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61406 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23Sema for fastcall/stdcall stuff. Tests will follow.Anton Korobeynikov
Patch by Ilya Okonsky! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-22Full AST support and better Sema support for C++ try-catch.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61346 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-22Partial AST and Sema support for C++ try-catch.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61337 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-22Add support for calls to overloaded member functions. Things to note:Douglas Gregor
- Overloading has to cope with having both static and non-static member functions in the overload set. - The call may or may not have an implicit object argument, depending on the syntax (x.f() vs. f()) and the context (static vs. non-static member function). - We now generate MemberExprs for implicit member access expression. - We now cope with mutable whenever we're building MemberExprs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-21Parser support for C++ try-catch.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-20Add support for member references (E1.E2, E1->E2) with C++ semantics,Douglas Gregor
which can refer to static data members, enumerators, and member functions as well as to non-static data members. Implement correct lvalue computation for member references in C++. Compute the result type of non-static data members of reference type properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-20Implement checks for bool in increment and decrement.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61275 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19Fix for PR3234Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61245 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18Ultrasimplistic sketch for the parsing of C++ template-ids. This won'tDouglas Gregor
become useful or correct until we (1) parse template arguments correctly, (2) have some way to turn template-ids into types, declarators, etc., and (3) have a real representation of templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61208 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18Clean up the C89/C++ warnings about C99 array features to not Chris Lattner
emit duplicate diags (some in parser and some in sema) and to warn about use of typequals in array sizes. This implements PR2759. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61197 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18Merge function-return.c into function.cChris Lattner
Fix PR2790 by making a warning an EXTWARN instead of EXTENSION. Add a new EXTENSION warning for "return (some void expression);" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17Consolidated property check into property-typecheck-1.m file.Fariborz Jahanian
Improved on property diagnostics. Added a FIXME per Steve's comments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61141 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17Removed the warningDouglas Gregor
warning: statement was disambiguated as declaration because it is currently firing in cases where the declaration would not actually parse as a statement. We'd love to bring this warning back if we can make it more accurate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61137 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17diagnose C99 6.9.1p5, C arguments in definitions that are lackingChris Lattner
a name. This implements PR3208. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17Semantics of @protocol attributes.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16Patch to check for ObjC's property type.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61090 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15Diagnose erroneous uses of out-of-line member definitions and scopeDouglas Gregor
specifiers. Specifically: * Determine when an out-of-line function definition does not match any declaration within the class or namespace (including coping with overloaded functions). * Complain about typedefs and parameters that have scope specifiers. * Complain about out-of-line declarations that aren't also definitions. * Complain about non-static data members being declared out-of-line. * Allow cv-qualifiers on out-of-line member function definitions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61058 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15Place constructors and destructors into the DeclContext of the class,Douglas Gregor
just like all other members, and remove the special variables in CXXRecordDecl to store them. This eliminates a lot of special-case code for constructors and destructors, including ActOnConstructor/ActOnDeclarator and special lookup rules in LookupDecl. The result is far more uniform and manageable. Diagnose the redeclaration of member functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61048 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12fix rdar://6097892 - gcc incompat: clang rejects __func__, __FUNCTION__, and ↵Chris Lattner
__PRETTY_FUNCTION__ outside func Yeah, this is "useful". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12Implement rdar://6138816 - [sema] named bitfields cannot have 0 widthChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60920 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Added a warning when referencing an if's condition variable in theDouglas Gregor
"else" clause, e.g., if (int X = foo()) { } else { if (X) { // warning: X is always zero in this context } } Fixes rdar://6425550 and lets me think about something other than DeclContext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60858 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-08Changed 'readonly' 'retain/copy' diagnostics intoFariborz Jahanian
warning as it is allowed in gcc and will break projects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60710 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-07a minor grammar fixChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60646 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-07Improve VLA diagnostics/sema checking. Fixes PR2361 and PR2352.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60638 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-06Improve error reporting of property and setter/getterFariborz Jahanian
type mimatches. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60630 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-06Add diagnostics for bitfields.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-06Simplify some diagnostics.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60626 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05This test checks for duplicate implementation of the same Fariborz Jahanian
property. It also checks for duplicate use of the same ivar in two different iproperty implementations. It also caught an error for a test case used in CodeGen :). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60610 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05(instance/class) Method type checking between class and its implementation.Fariborz Jahanian
(instance/class) Method type checking between category and its implementation. And a test case for all. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60598 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Representation of template type parameters and non-type templateDouglas Gregor
parameters, with some semantic analysis: - Template parameters are introduced into template parameter scope - Complain about template parameter shadowing (except in Microsoft mode) Note that we leak template parameter declarations like crazy, a problem we'll remedy once we actually create proper declarations for templates. Next up: dependent types and value-dependent/type-dependent expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60597 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Use VerifyIntegerConstantExpression instead of isIntegerConstantExpr. Fixes ↵Anders Carlsson
PR2963 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04instead of forcing blocks on by default, make them default to off, but letChris Lattner
specific targets default them to on. Default blocks to on on 10.6 and later. Add a -fblocks option that allows the user to override the target's default. Use -fblocks in the various testcases that use blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60563 91177308-0d34-0410-b5e6-96231b3b80d8