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2009-08-15Implement __is_empty. Patch by Sean Hunt.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79143 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Argument-dependent lookup for friend declarations. Add a new decl type,John McCall
FriendFunctionDecl, and create instances as appropriate. The design of FriendFunctionDecl is still somewhat up in the air; you can befriend arbitrary types of functions --- methods, constructors, etc. --- and it's not clear that this representation captures that very well. We'll have a better picture when we start consuming this data in access control. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78653 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10Take 2 on AltiVec-style vector initializers. Nate Begeman
Fixes PR4704 problems Addresses Eli's patch feedback re: ugly cast code Updates all postfix operators to remove ParenListExprs. While this is awful, no better solution (say, in the parser) is obvious to me. Better solutions welcome. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78621 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10Add a CastInfo struct that will be used for cast information when ↵Anders Carlsson
constructing cast expressions. Right now it only stores the cast kind, but in the future it might store conversion functions and constructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78599 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10Revert r78535, it is causing a number of failures to build projects.Daniel Dunbar
--- Reverse-merging r78535 into '.': D test/Sema/altivec-init.c U include/clang/Basic/DiagnosticSemaKinds.td U include/clang/AST/Expr.h U include/clang/AST/StmtNodes.def U include/clang/Parse/Parser.h U include/clang/Parse/Action.h U tools/clang-cc/clang-cc.cpp U lib/Frontend/PrintParserCallbacks.cpp U lib/CodeGen/CGExprScalar.cpp U lib/Sema/SemaInit.cpp U lib/Sema/Sema.h U lib/Sema/SemaExpr.cpp U lib/Sema/SemaTemplateInstantiateExpr.cpp U lib/AST/StmtProfile.cpp U lib/AST/Expr.cpp U lib/AST/StmtPrinter.cpp U lib/Parse/ParseExpr.cpp U lib/Parse/ParseExprCXX.cpp git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78551 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-09AltiVec-style vector initializer syntax, vec4 a = (vec4)(a, b, c, d);Nate Begeman
In addition to being defined by the AltiVec PIM, this is also the vector initializer syntax used by OpenCL, so that vector literals are compatible with macro arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78535 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08Factor some code to get the "function level" DeclContext out into a separate ↵Anders Carlsson
function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78478 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08Patch should implement packed enums - PR4098. Credit to Anders Johnsen.Edward O'Callaghan
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78471 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08Introduce reference counting for statements and expressions, using itDouglas Gregor
to allow sharing of nodes. Simplifies some aspects of template instantiation, and fixes both PR3444 and <rdar://problem/6757457>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78450 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07More CastKind work.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78415 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07Just add global scope to the associated namespaces set instead of tracking itJohn McCall
separately. Add the framework (currently unfed) for finding friend declarations during argument-dependent lookup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78414 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06When we encounter a dependent type that was parsed before we know thatDouglas Gregor
we were going to enter into the scope of a class template or class template partial specialization, rebuild that type so that it can refer to members of the current instantiation, as in code like template<typename T> struct X { typedef T* pointer; pointer data(); }; template<typename T> typename X<T>::pointer X<T>::data() { ... } Without rebuilding the return type of this out-of-line definition, the canonical return type of the out-of-line definition (a TypenameType) will not match the canonical return type of the declaration (the canonical type of T*). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78316 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06Support nested-name-specifiers for C++ member access expressions, e.g.,Douglas Gregor
this->Base::foo from James Porter! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78278 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06add support for FreeBSD's format(printf0,x,y) attribute; allows null format ↵Ryan Flynn
string. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78276 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06First pass at friend semantics.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05Patch to improve ir-gen for constructors with default argumentFariborz Jahanian
expressions and a test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04Compare matching selectors in current andFariborz Jahanian
super class(s) and warn on any parameter type mismatch if potentially unsafe. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78029 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03Per advice that Doug Gregor gave me several months ago, clean up theTed Kremenek
implementation of '#pragma unused' by not constructing intermediate DeclRefExprs, but instead do the name lookup directly. The implementation is greatly simplified. Along the way, degrade '#pragma unused(undeclaredvariable)' to a warning instead of being a hard error. This implements: <rdar://problem/6761874> [sema] allow #pragma unused to reference undefined variable (with warning) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03Minor renaming/refactoring. No change in functionality.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77985 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31PR3679 - enable #pragma weak aliasing.Ryan Flynn
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77660 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Rename Action::TagKind to Action::TagUseKind, which removes both a misnomerJohn McCall
and a name collision. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77658 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Add CK_DerivedToBase and use it PerformObjectMemberConversion.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Factor code out into a DiagnoseUnusedExprResult function.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77628 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30PR3679 - handle #pragma weakRyan Flynn
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77573 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Refactor base/member initializers, and construct them correctly in cases Eli Friedman
with dependent types. Fixes PR4621 and PR4627. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77498 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Check accessibility when converting object to the baseFariborz Jahanian
class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77497 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Patch to provide cast of objects in member accessFariborz Jahanian
excpression, if needed, and remove some ir-gen code now unnencessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Make functional-style casts emit correct messages, and fix a crash-on-invalid.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77451 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Add noreturn support for blocks.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77377 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25Implement C++ semantics for C-style and functional-style casts. This ↵Sebastian Redl
regresses Clang extension conversions, like vectors, but allows conversions via constructors and conversion operators. Add custom conversions to static_cast. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24Template instantiation for static data members that are defined out-of-line.Douglas Gregor
Note that this also fixes a bug that affects non-template code, where we were not treating out-of-line static data members are "file-scope" variables, and therefore not checking their initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77002 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24Test commit: make a little stub routine for semantic checking of main().John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76934 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23Diagnose when base classes and members to be intializedFariborz Jahanian
with constructors don't have a matching constructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76913 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23Clean up the ActOnTag action, so that there is only a single entryDouglas Gregor
point that covers templates and non-templates. This should eliminate the flood of warnings I introduced yesterday. Removed the ActOnClassTemplate action, which is no longer used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76881 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23Remove a bunch of FIXME's related to ObjC type checking.Steve Naroff
- Move Sema::ObjCQualifiedIdTypesAreCompatible(), Sema::QualifiedIdConformsQualifiedId(), and a couple helper functions to ASTContext. - Change ASTContext::canAssignObjCInterfaces() to use ASTContext:: ObjCQualifiedIdTypesAreCompatible(). - Tweak several test cases to accommodate the new/improved type checking. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76830 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Add warning for falling off the end of a function that should return aMike Stump
value. This is on by default, and controlled by -Wreturn-type (-Wmost -Wall). I believe there should be very few false positives, though the most interesting case would be: int() { bar(); } when bar does: bar() { while (1) ; } Here, we assume functions return, unless they are marked with the noreturn attribute. I can envision a fixit note for functions that never return normally that don't have a noreturn attribute to add a noreturn attribute. If anyone spots other false positives, let me know! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76821 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Implement support for out-of-line definitions of the class members of classDouglas Gregor
templates, e.g., template<typename T> struct Outer { struct Inner; }; template<typename T> struct Outer<T>::Inner { // ... }; Implementing this feature required some extensions to ActOnTag, which now takes a set of template parameter lists, and is the precursor to removing the ActOnClassTemplate function from the parser Action interface. The reason for this approach is simple: the parser cannot tell the difference between a class template definition and the definition of a member of a class template; both have template parameter lists, and semantic analysis determines what that template parameter list means. There is still some cleanup to do with ActOnTag and ActOnClassTemplate. This commit provides the basic functionality we need, however. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76820 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22"This patch implements the restrictions on union members detailed inDouglas Gregor
[class.union]p1", from John McCall! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76766 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Implement parsing and semantic analysis for out-of-line definitions of staticDouglas Gregor
data members of class templates. We don't instantiate the definitions yet, however. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76756 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Basic parsing and semantic analysis for out-of-line definitions of theDouglas Gregor
member functions of class templates, e.g., template<typename T> struct X { void f(T); }; template<typename T> X<T>::f(T) { /* ... */ } git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Patch to accomodate Doug's comment on defaultFariborz Jahanian
destruction of base/members for each destructor AST. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76663 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Remove the ObjCCategoryImpls vector from Sema class.Argyrios Kyrtzidis
Use ObjCInterfaceDecl::getCategoryClassMethod() and ObjCInterfaceDecl::getCategoryInstanceMethod() for the same functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Remove Sema::LookupObjCImplementation and replace it with just calling ↵Argyrios Kyrtzidis
ObjCInterfaceDecl::getImplementation(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-205 cleanups to ObjCObjectPointerType work:Steve Naroff
- Remove Sema::CheckPointeeTypesForAssignment(), a temporary API I added to ease migration to ObjCObjectPointerType. Convert Sema::CheckAssignmentConstraints() to no longer depend on the temporary API. - Sema::ConvertDeclSpecToType(): Replace a couple FIXME's with an important comment/example. - Sema::GetTypeForDeclarator(): Get the protocol's from the interface, NOT the declspec (to support the following C typedef idiom: "typedef C<P> T; T *obj"). - Sema::ObjCQualifiedIdTypesAreCompatible(): Removed some dead code. - ASTContext::getObjCEncodingForTypeImpl(): Some minor cleanups. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76443 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18Enhance testing of overriding exception specs for inaccessible base exceptions.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76317 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15Added ASTs to destructor decl AST for default destruction of object'sFariborz Jahanian
base/members. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75849 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14Patch to build AST for ctor's initializer list according toFariborz Jahanian
semantics of order of construction [class.init]. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14Add a "TypeSpecStartLoc" to FieldDecl. Patch contributed by Enea Zaffanella.Steve Naroff
Note: One day, it might be useful to consider adding this info to DeclGroup (as the comments in FunctionDecl/VarDecl suggest). For now, I think this works fine. I considered moving this to ValueDecl (a common ancestor of FunctionDecl/VarDecl/FieldDecl), however this would add overhead to EnumConstantDecl (which would burn memory and isn't necessary). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14Pass the right brace SourceLocation from the Parser to the TagDecls.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75591 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11Implement more of C++0x 'auto'. A variable with an auto type specifier must ↵Anders Carlsson
have an initializer. Also, move some tests around to match the C++0x draft better. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75322 91177308-0d34-0410-b5e6-96231b3b80d8