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path: root/lib/Sema/SemaOverload.cpp
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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
2009-07-31Add a CastKind enum to CastExpr. Right now it's not used for much but it ↵Anders Carlsson
will be :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77650 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Change uses of:Ted Kremenek
Type::getAsReferenceType() -> Type::getAs<ReferenceType>() Type::getAsRecordType() -> Type::getAs<RecordType>() Type::getAsPointerType() -> Type::getAs<PointerType>() Type::getAsBlockPointerType() -> Type::getAs<BlockPointerType>() Type::getAsLValueReferenceType() -> Type::getAs<LValueReferenceType>() Type::getAsRValueReferenceType() -> Type::getAs<RValueReferenceType>() Type::getAsMemberPointerType() -> Type::getAs<MemberPointerType>() Type::getAsReferenceType() -> Type::getAs<ReferenceType>() Type::getAsTagType() -> Type::getAs<TagType>() And remove Type::getAsReferenceType(), etc. This change is similar to one I made a couple weeks ago, but that was partly reverted pending some additional design discussion. With Doug's pending smart pointer changes for Types, it seemed natural to take this approach. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77510 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
2009-07-23Remove 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
2009-07-18Remove ASTContext::getCanonicalDecl() and use Decl::getCanonicalDecl in its ↵Argyrios Kyrtzidis
place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Per offline discussion with Steve Naroff, add back Type::getAsXXXType() methodsTed Kremenek
until Doug Gregor's Type smart pointer code lands (or more discussion occurs). These methods just call the new Type::getAs<XXX> methods, so we still have reduced implementation redundancy. Having explicit getAsXXXType() methods makes it easier to set breakpoints in the debugger. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Replaced Type::getAsLValueReferenceType(), Type::getAsRValueReferenceType(), ↵Ted Kremenek
Type::getAsMemberPointerType(), Type::getAsTagType(), and Type::getAsRecordType() with their Type::getAs<XXX> equivalents. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76139 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Replace Type::getAsReferenceType() with Type::getAs<ReferenceType>().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76132 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Add member template 'Type::getAs<T>', which converts a Type* to a respective T*.Ted Kremenek
This method is intended to eventually replace the individual Type::getAsXXXType<> methods. The motivation behind this change is twofold: 1) Reduce redundant implementations of Type::getAsXXXType() methods. Most of them are basically copy-and-paste. 2) By centralizing the implementation of the getAs<Type> logic we can more smoothly move over to Doug Gregor's proposed canonical type smart pointer scheme. Along with this patch: a) Removed 'Type::getAsPointerType()'; now clients use getAs<PointerType>. b) Removed 'Type::getAsBlockPointerTypE()'; now clients use getAs<BlockPointerType>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Remove ASTContext::isObjCObjectPointerType().Steve Naroff
Convert all clients to use the new predicate on Type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15Implement the ObjC pseudo built-in types as clang "BuiltinType's". I say ↵Steve Naroff
pseudo built-in types, since Sema still injects a typedef for recognition (i.e. they aren't truly built-ins from a parser perspective). This removes the static data/methods on ObjCObjectPointerType while preserving the nice API (no need to fiddle with ASTContext:-). This patch also adds Type::isObjCBuiltinType(). This should be the last fairly large patch related to recrafting the ObjC type system. The follow-on patches should be fairly small. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14Basic support for C++0x unicode types. Support for literals will follow in ↵Alisdair Meredith
an incremental patch git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75622 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14For C++ overloaded operator calls, set the source location of the ↵Argyrios Kyrtzidis
DeclRefExpr to the location of the operator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75600 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10This patch includes a conceptually simple, but very intrusive/pervasive change. Steve Naroff
The idea is to segregate Objective-C "object" pointers from general C pointers (utilizing the recently added ObjCObjectPointerType). The fun starts in Sema::GetTypeForDeclarator(), where "SomeInterface *" is now represented by a single AST node (rather than a PointerType whose Pointee is an ObjCInterfaceType). Since a significant amount of code assumed ObjC object pointers where based on C pointers/structs, this patch is very tedious. It should also explain why it is hard to accomplish this in smaller, self-contained patches. This patch does most of the "heavy lifting" related to moving from PointerType->ObjCObjectPointerType. It doesn't include all potential "cleanups". The good news is additional cleanups can be done later (some are noted in the code). This patch is so large that I didn't want to include any changes that are purely aesthetic. By making the ObjC types truly built-in, they are much easier to work with (and require fewer "hacks"). For example, there is no need for ASTContext::isObjCIdStructType() or ASTContext::isObjCClassStructType()! We believe this change (and the follow-up cleanups) will pay dividends over time. Given the amount of code change, I do expect some fallout from this change (though it does pass all of the clang tests). If you notice any problems, please let us know asap! Thanks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75314 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-09Add test for C++ [over.over.]p1, the contexts in which one can take the ↵Douglas Gregor
address of an overloaded function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75146 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Implement the simple form of overload resolution used when taking theDouglas Gregor
address of an overloaded function (which may involve both functions and function templates). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75069 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Implement template argument deduction when taking the address of aDouglas Gregor
function template. Most of the change here is in factoring out the common bits used for template argument deduction from a function call and when taking the address of a function template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75044 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-07Overload resolution prefers non-templates to templatesDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74971 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30When explicit template arguments are provided for a function call,Douglas Gregor
substitute those template arguments into the function parameter types prior to template argument deduction. There's still a bit of work to do to make this work properly when only some of the template arguments are specified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30De-ASTContext-ify DeclContext.Argyrios Kyrtzidis
Remove ASTContext parameter from DeclContext's methods. This change cascaded down to other Decl's methods and changes to call sites started "escalating". Timings using pre-tokenized "cocoa.h" showed only a ~1% increase in time run between and after this commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74506 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30Remove the ASTContext parameter from the attribute-related methods of Decl.Argyrios Kyrtzidis
The implementations of these methods can Use Decl::getASTContext() to get the ASTContext. This commit touches a lot of files since call sites for these methods are everywhere. I used pre-tokenized "carbon.h" and "cocoa.h" headers to do some timings, and there was no real time difference between before the commit and after it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27Improve support for overloaded operator templates.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74390 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-25Improved semantic analysis and AST respresentation for functionDouglas Gregor
templates. For example, this now type-checks (but does not instantiate the body of deref<int>): template<typename T> T& deref(T* t) { return *t; } void test(int *ip) { int &ir = deref(ip); } Specific changes/additions: * Template argument deduction from a call to a function template. * Instantiation of a function template specializations (just the declarations) from the template arguments deduced from a call. * FunctionTemplateDecls are stored directly in declaration contexts and found via name lookup (all forms), rather than finding the FunctionDecl and then realizing it is a template. This is responsible for most of the churn, since some of the core declaration matching and lookup code assumes that all functions are FunctionDecls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-24Implement matching of function templates, so that one can declare overloaded ↵Douglas Gregor
function templates. C++ [temp.over.link] paragraphs 4-8. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74079 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19Keep track of when declarations are "used" according to C andDouglas Gregor
C++. This logic is required to trigger implicit instantiation of function templates and member functions of class templates, which will be implemented separately. This commit includes support for -Wunused-parameter, printing warnings for named parameters that are not used within a function/Objective-C method/block. Fixes <rdar://problem/6505209>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73797 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18Move the static DeclAttrs map into ASTContext. Fixes <rdar://problem/6983177>.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-21Avoid using the built-in type checker for assignment in C++ when classes are ↵Sebastian Redl
involved. Patch by Vyacheslav Kononenko. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72212 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-19Template instantiation for array subscript expressions. This was farDouglas Gregor
easier than expected because of the limitation that subscript operators must be member functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-16Reflow some comments.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71936 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-10Implement C++0x nullptr.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71405 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-02When determining whether an expression refers to a bit-field, lookDouglas Gregor
into the left-hand side of an assignment expression. This completes most of PR3500; the only remaining part is to deal with the GCC-specific implementation-defined behavior for "unsigned long" (and other) bit-fields. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01Get rid of the implicit deref call when calling member functions where the ↵Anders Carlsson
base is a pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Implement semantic analysis for transparent unions. This is largelyDouglas Gregor
based on a patch from Anders Johnsen. CodeGen support is incomplete, in that we do not properly coerce to the first field's type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70419 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Conditional operator C++ checking complete. What issues remain are in more ↵Sebastian Redl
general code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69555 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16Fix a crash bug when comparing overload quality of conversion operators with ↵Sebastian Redl
conversion constructors. Remove an atrocious amount of trailing whitespace in the overloaded operator mangler. Sorry, couldn't help myself. Change the DeclType parameter of Sema::CheckReferenceInit to be passed by value instead of reference. It wasn't changed anywhere. Let the parser handle C++'s irregular grammar around assignment-expression and conditional-expression. And finally, the reason for all this stuff: implement C++ semantics for the conditional operator. The implementation is complete except for determining lvalueness. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69299 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12Parse deleted member functions. Parsing member declarations goes through a ↵Sebastian Redl
different code path that I forgot previously. Implement the rvalue reference overload dance for returning local objects. Returning a local object first tries to find a move constructor now. The error message when no move constructor is defined (or is not applicable) and the copy constructor is deleted is quite ugly, though. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68902 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12implement rdar://6780761, making sema reject some code that otherwiseChris Lattner
crashes codegen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68891 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Propagate the ASTContext to various AST traversal and lookup functions.Douglas Gregor
No functionality change (really). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68726 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-29Hopefully fix the rval regressions. Thanks to Chris for pointing out that ↵Sebastian Redl
valgrind complains. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68021 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-29Reintroduce r67870 (rval ref overloading), since I can't reproduce any test ↵Sebastian Redl
failures on i386 or x86_64. If this fails for someone, please contact me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-29QualType can go in SmallPtrSet now, simplify code that used to haveChris Lattner
to work around this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67968 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-28Introduce a new OpaquePtr<N> struct type, which is a simple POD wrapper for aChris Lattner
pointer. Its purpose in life is to be a glorified void*, but which does not implicitly convert to void* or other OpaquePtr's with a different UID. Introduce Action::DeclPtrTy which is a typedef for OpaquePtr<0>. Change the entire parser/sema interface to use DeclPtrTy instead of DeclTy*. This makes the C++ compiler enforce that these aren't convertible to other opaque types. We should also convert ExprTy, StmtTy, TypeTy, AttrTy, BaseTy, etc, but I don't plan to do that in the short term. The one outstanding known problem with this patch is that we lose the bitmangling optimization where ActionResult<DeclPtrTy> doesn't know how to bitmangle the success bit into the low bit of DeclPtrTy. I will rectify this with a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-28Revert Sebastian's rvalue patch (r67870) since it caused test failures inAnders Carlsson
SemaCXX//overload-member-call.cpp SemaCXX//overloaded-operator.cpp SemaTemplate//instantiate-method.cpp git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67912 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-27Better overload resolution for rvalue references.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67870 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24Type::isObjectType now implements the (more sensible) C++ definitionDouglas Gregor
of "object type" rather than the C definition of "object type". The difference is that C's "object type" excludes incomplete types such as struct X; However, C's definition also makes it far too easy to use isObjectType as a means to detect incomplete types when in fact we should use other means (e.g., Sema::RequireCompleteType) that cope with C++ semantics, including template instantiation. I've already audited every use of isObjectType and isIncompleteType to ensure that they are doing the right thing for both C and C++, so this is patch does not change any functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67648 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-22Disallow catching exceptions by rvalue reference.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67492 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-16Almost complete implementation of rvalue references. One bug, and a few ↵Sebastian Redl
unclear areas. Maybe Doug can shed some light on some of the fixmes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67059 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13Implement template instantiation for the prefix unary operators. AsDouglas Gregor
always, refactored the existing logic to tease apart the parser action and the semantic analysis shared by the parser and template instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66987 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13Refactor the way we handle operator overloading and templateDouglas Gregor
instantiation for binary operators. This change moves most of the operator-overloading code from the parser action ActOnBinOp to a new, parser-independent semantic checking routine CreateOverloadedBinOp. Of particular importance is the fact that CreateOverloadedBinOp does *not* perform any name lookup based on the current parsing context (it doesn't take a Scope*), since it has to be usable during template instantiation, when there is no scope information. Rather, it takes a pre-computed set of functions that are visible from the context or via argument-dependent lookup, and adds to that set any member operators and built-in operator candidates. The set of functions is computed in the parser action ActOnBinOp based on the current context (both operator name lookup and argument-dependent lookup). Within a template, the set computed by ActOnBinOp is saved within the type-dependent AST node and is augmented with the results of argument-dependent name lookup at instantiation time (see TemplateExprInstantiator::VisitCXXOperatorCallExpr). Sadly, we can't fully test this yet. I'll follow up with template instantiation for sizeof so that the real fun can begin. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66923 91177308-0d34-0410-b5e6-96231b3b80d8
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