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2008-11-20__weak ivar need not warn.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59743 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Add support for overloaded operator-> when used in a member accessDouglas Gregor
expression (smart_ptr->mem). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59732 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Fix strange quote charactersDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59729 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Daniel really really likes = instead of += :)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59716 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20remove the last old-fashioned Diag method. Transition complete!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59714 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20remove another old Diag method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59713 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20remove another old-school Diag method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59712 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20remove the type_info identifier cache. Compared to the costChris Lattner
of doing the lookup_decl, the hash lookup is cheap. Also, typeid doesn't happen enough in real world code to worry about it. I'd like to eventually get rid of KnownFunctionIDs from Sema also, but today is not that day. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59711 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20compared to the rest of the code in Sema::GetStdNamespace(),Chris Lattner
looking up the "std" identifier is trivial. Just do it, particularly since this is only done if the namespace hasn't already been looked up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59710 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20remove some other identifiers that are looked up really early and onlyChris Lattner
used in one cold place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59709 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20instead of looking up super at startup time, Chris Lattner
just check for it when needed. It doesn't incur real cost in any hot paths. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59708 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Rename IdentifierInfo::isName to ::isStr. Use a nifty trickChris Lattner
from Sebastian to enforce that a literal string is passed in, and use this to avoid having to call strlen on it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20More objc gc stuff. Read/Write barriers for local static/extern,Fariborz Jahanian
diagnostics on use of __weak attribute on fields, Early support for read/write barriers for objc fields. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59682 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Implement the rest of C++ [over.call.object], which permits the objectDouglas Gregor
being called to be converted to a reference-to-function, pointer-to-function, or reference-to-pointer-to-function. This is done through "surrogate" candidate functions that model the conversions from the object to the function (reference/pointer) and the conversions in the arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59674 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Support for calling overloaded function call operators (operator())Douglas Gregor
with function call syntax, e.g., Functor f; f(x, y); This is the easy part of handling calls to objects of class type (C++ [over.call.object]). The hard part (coping with conversions from f to function pointer or reference types) will come later. Nobody uses that stuff anyway, right? :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Some tweaks suggested by ArgirisDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59661 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Take care another assert:Argyrios Kyrtzidis
struct A { struct B; }; struct A::B { void m() {} // Assertion failed: getContainingDC(DC) == CurContext && "The next DeclContext should be lexically contained in the current one." }; Introduce DeclContext::getLexicalParent which may be different from DeclContext::getParent when nested-names are involved, e.g: namespace A { struct S; } struct A::S {}; // getParent() == namespace 'A' // getLexicalParent() == translation unit git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59650 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Support overloading of the subscript operator[], including support forDouglas Gregor
built-in operator candidates. Test overloading of '&' and ','. In C++, a comma expression is an lvalue if its right-hand subexpression is an lvalue. Update Expr::isLvalue accordingly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59643 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Fix <rdar://problem/6150376> [sema] crash on invalid message send.Steve Naroff
The core fix in Sema::ActOnClassMessage(). All the other changes have to do with passing down the SourceLocation for the receiver (to properly position the cursor when producing an error diagnostic). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59639 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Added operator overloading for unary operators, post-increment, andDouglas Gregor
post-decrement, including support for generating all of the built-in operator candidates for these operators. C++ and C have different rules for the arguments to the builtin unary '+' and '-'. Implemented both variants in Sema::ActOnUnaryOp. In C++, pre-increment and pre-decrement return lvalues. Update Expr::isLvalue accordingly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59638 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Fix silly code, use IdentifierInfo* instead of std::string inDaniel Dunbar
PragmaPackStack. Thanks Chris! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59616 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19stop calling II::getName() unnecesarily in semaChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59609 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Allow sending IdentifierInfo*'s into Diagnostics without turning them into ↵Chris Lattner
strings first. This should allow removal of a bunch of II->getName() calls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19convert some diags to use numbers instead of strings.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59600 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19add direct support for signed and unsigned integer arguments to diagnostics.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59598 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19remove one more old-style Diag method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59589 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Switch several more Sema Diag methods over. This simplifies theChris Lattner
__builtin_prefetch code to only emit one diagnostic per builtin_prefetch. While this has nothing to do with the rest of the patch, the code seemed like overkill when I was updating it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59588 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Built-in equality and relational operators have return type "bool" in C++,Douglas Gregor
not "int". Fix a typo in the promotion of enumeration types that was causing some integral promotions to look like integral conversions (leading to extra ambiguities in overload resolution). Check for "acceptable" overloaded operators based on the types of the arguments. This is a somewhat odd check that is specified by the standard, but I can't see why it actually matters: the overload candidates it suppresses don't seem like they would ever be picked as the best candidates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59583 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Partial expansion of C++ operator overloading (for binary operators)Douglas Gregor
to support operators defined as member functions, e.g., struct X { bool operator==(X&); }; Overloading with non-member operators is supported, and the special rules for the implicit object parameter (e.g., the ability for a non-const *this to bind to an rvalue) are implemented. This change also refactors and generalizes the code for adding overload candidates for overloaded operator calls (C++ [over.match.expr]), both to match the rules more exactly (name lookup of non-member operators actually ignores member operators) and to make this routine more reusable for the other overloaded operators. Testing for the initialization of the implicit object parameter is very light. More tests will come when we get support for calling member functions directly (e.g., o.m(a1, a2)). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59564 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18start converting Sema over to using its canonical Diag method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59561 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18introduce the one true Diag method for Sema. Next up: kill all the others off.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59556 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Fix <rdar://problem/6329769> [sema] crash on duplication definition of ↵Steve Naroff
interface with protocols. As soon as we detect duplicate interfaces, discontinue further semantic checks (returning the original interface). This is now consistent with how we handle protocols (and less error prone in general). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59541 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18As threatened previously: consolidate name lookup and the creation ofDouglas Gregor
DeclRefExprs and BlockDeclRefExprs into a single function Sema::ActOnDeclarationNameExpr, eliminating a bunch of duplicate lookup-name-and-check-the-result code. Note that we still have the three parser entry points for identifiers, operator-function-ids, and conversion-function-ids, since the parser doesn't (and shouldn't) know about DeclarationNames. This is a Good Thing (TM), and there will be more entrypoints coming (e.g., for C++ pseudo-destructor expressions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59527 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Extend DeclarationName to support C++ overloaded operators, e.g.,Douglas Gregor
operator+, directly, using the same mechanism as all other special names. Removed the "special" identifiers for the overloaded operators from the identifier table and IdentifierInfo data structure. IdentifierInfo is back to representing only real identifiers. Added a new Action, ActOnOperatorFunctionIdExpr, that builds an expression from an parsed operator-function-id (e.g., "operator +"). ActOnIdentifierExpr used to do this job, but operator-function-ids are no longer represented by IdentifierInfo's. Extended Declarator to store overloaded operator names. Sema::GetNameForDeclarator now knows how to turn the operator name into a DeclarationName for the overloaded operator. Except for (perhaps) consolidating the functionality of ActOnIdentifier, ActOnOperatorFunctionIdExpr, and ActOnConversionFunctionExpr into a common routine that builds an appropriate DeclRefExpr by looking up a DeclarationName, all of the work on normalizing declaration names should be complete with this commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59526 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
2008-11-18Attribute nonnull can be applied to block pointers.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59499 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
2008-11-18minor cleanups and tidying, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59485 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18implement a fixme by making warnings for ++/-- on non-modifiable-lvalues better.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18factor some code out into a helper functionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Implement effects of 'mutable', and a few comments from Chris on its parsing.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59470 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Eliminate all of the placeholder identifiers used for constructors,Douglas Gregor
destructors, and conversion functions. The placeholders were used to work around the fact that the parser and some of Sema really wanted declarators to have simple identifiers; now, the code that deals with declarators will use DeclarationNames. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59469 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Fix <rdar://problem/6333904> [sema] message lookup on super is incorrectSteve Naroff
Missing special lookup rule in Sema::ActOnInstanceMessage(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59467 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Updated IdentifierResolver to deal with DeclarationNames. The names ofDouglas Gregor
C++ constructors, destructors, and conversion functions now have a FETokenInfo field that IdentifierResolver can access, so that these special names are handled just like ordinary identifiers. A few other Sema routines now use DeclarationNames instead of IdentifierInfo*'s. To validate this design, this code also implements parsing and semantic analysis for id-expressions that name conversion functions, e.g., return operator bool(); The new parser action ActOnConversionFunctionExpr takes the result of parsing "operator type-id" and turning it into an expression, using the IdentifierResolver with the DeclarationName of the conversion function. ActOnDeclarator pushes those conversion function names into scope so that the IdentifierResolver can find them, of course. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59462 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Implement rdar://6319320: give a good diagnostic for cases where peopleChris Lattner
are trying to use the old GCC "casts as lvalue" extension. We don't and will hopefully never support this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59460 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Fix <rdar://problem/6316324> [sema] spurious warning on comparison of ↵Steve Naroff
qualified id. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Fix <rdar://problem/6320086> parser rejects block capturing ivar.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Some cleanups for C++ operator overloadingDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59443 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Simplify error messages for two-parameter overloaded increment/decrement ↵Douglas Gregor
operators git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17Introduction the DeclarationName class, as a single, general method ofDouglas Gregor
representing the names of declarations in the C family of languages. DeclarationName is used in NamedDecl to store the name of the declaration (naturally), and ObjCMethodDecl is now a NamedDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59441 91177308-0d34-0410-b5e6-96231b3b80d8
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