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2009-10-27Refine noreturn handling. Fixes -Wmissing-noreturn so that it doesn'tMike Stump
complain that functions that have a return statement should be declared noreturn. Fixed PR5286. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85195 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Implement rdar://6756623 - use of deprecated type in deprecated typedef ↵Chris Lattner
should not warn git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Remove the Skip parameter from GetTypeForDeclarator and dependents. Take the ↵Sebastian Redl
opportunity to improve an error message and fix PR4498. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25change ConvertDeclSpecToType to be a static function in SemaType.cppChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85061 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-24Preserve type source information in TypedefDecls. Preserve it acrossJohn McCall
template instantiation. Preserve it through PCH. Show it off to the indexer. I'm healthily ignoring the vector type cases because we don't have a sensible TypeLoc implementation for them anyway. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Apply the special enum restrictions from [over.match.oper]p3b2 in ↵Sebastian Redl
argument-dependent lookup too. This fixes PR5244. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22When building types from declarators, instead of building two types (one forJohn McCall
the DeclaratorInfo, one for semantic analysis), just build a single type whose canonical type will reflect the semantic analysis (assuming the type is well-formed, of course). To make that work, make a few changes to the type system: * allow the nominal pointee type of a reference type to be a (possibly sugared) reference type. Also, preserve the original spelling of the reference type. Both of these can be ignored on canonical reference types. * Remove ObjCProtocolListType and preserve the associated source information on the various ObjC TypeLocs. Preserve the spelling of protocol lists except in the canonical form. * Preserve some level of source type structure on parameter types, but canonicalize on the canonical function type. This is still a WIP. Drops code size, makes strides towards accurate source location representation, slight (~1.7%) progression on Cocoa.h because of complexity drop. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84907 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22When building and instantiating a template-id reference expression, such asDouglas Gregor
N::f<int> keep track of the full nested-name-specifier. This is mainly QoI and relatively hard to test; will try to come up with a printing-based test once we also retain the explicit template arguments past overload resolution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84869 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22Refactor our handling of implicit member reference expressions to get most ↵Douglas Gregor
of the logic out of BuildDeclarationNameExpr git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-21Don't (directly) call RequireCompleteType with an invalid source location.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84793 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-21Change FixOverloadedFunctionReference to return a (possibly new) expression. ↵Anders Carlsson
Substitute TemplateIdRefExprs with DeclRefExprs. Doug, plz review :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84763 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-21Clone Sema::SubstType for DeclaratorInfos.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-20Remove default argument for ImpCastExprToType. Add appropriate argument Eli Friedman
to all callers. Switch a few other users of CK_Unknown to proper cast kinds. Note that there are still some situations where we end up with CK_Unknown; they're pretty easy to find with grep. There are still a few missing conversion kinds, specifically pointer/int/float->bool and the various combinations of real/complex float/int->real/complex float/int. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Parse a simple-template-id following a '~' when calling a destructor, e.g.,Douglas Gregor
t->~T<A0, A1>() Fixes PR5213. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84545 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Don't add implicit casts of explicit address-taking of overloaded functions.Sebastian Redl
Taking the address of an overloaded function with an explicit address-of operator wrapped the operator in an implicit cast that added yet another pointer level, leaving us with a corrupted AST, which crashed CodeGen in the test case I've added. Fix this by making FixOverloadedFunctionReference return whether there was an address-of operator and not adding the implicit cast in that case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84362 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Implement derived-to-base AST/code gen. There is aFariborz Jahanian
FIXME in CGCXX.cpp that I would like Anders to take a look at. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84265 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Add CK_VectorSplat and use it for casting non-pointer scalars to ExtVectors.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84245 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Make CheckVectorCast return a CastKind. Reduce nesting of if statements in ↵Anders Carlsson
CheckCastTypes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84242 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-15Diagnose explicit instantiations of function templates and memberDouglas Gregor
functions/static data members of class template specializations that do not have definitions. This is the latter part of [temp.explicit]p4; the former part still needs more testing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84182 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14Have the exception specification checkers take partial diagnostics. Use this ↵Sebastian Redl
to merge two diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84105 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Improve diagnostics when the parser encounters a declarator with anDouglas Gregor
unknown type name, e.g., foo::bar x; when "bar" does not refer to a type in "foo". With this change, the parser now calls into the action to perform diagnostics and can try to recover by substituting in an appropriate type. For example, this allows us to easily diagnose some missing "typename" specifiers, which we now do: test/SemaCXX/unknown-type-name.cpp:29:1: error: missing 'typename' prior to dependent type name 'A<T>::type' A<T>::type A<T>::f() { return type(); } ^~~~~~~~~~ typename Fixes PR3990. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84053 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Unify our diagnostic printing for errors of the form, "we didn't likeDouglas Gregor
what we found when we looked into <blah>", where <blah> is a DeclContext*. We can now format DeclContext*'s in nice ways, e.g., "namespace N", "the global namespace", "'class Foo'". This is part of PR3990, but we're not quite there yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84028 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13When explicitly specializing a member that is a template, mark theDouglas Gregor
template as a specialization. For example, this occurs with: template<typename T> struct X { template<typename U> struct Inner { /* ... */ }; }; template<> template<typename T> struct X<int>::Inner { T member; }; We need to treat templates that are member specializations as special in two contexts: - When looking for a definition of a member template, we look through the instantiation chain until we hit the primary template *or a member specialization*. This allows us to distinguish between the primary "Inner" definition and the X<int>::Inner definition, above. - When computing all of the levels of template arguments needed to instantiate a member template, don't add template arguments from contexts outside of the instantiation of a member specialization, since the user has already manually substituted those arguments. Fix up the existing test for p18, which was actually wrong (but we didn't diagnose it because of our poor handling of member specializations of templates), and add a new test for member specializations of templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83974 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Implement -Wparentheses: warn about using assignments in contexts that requireJohn McCall
conditions. Add a fixit to insert the parentheses. Also fix a very minor possible memory leak in 'for' conditions. Fixes PR 4876 and rdar://problem/7289172 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83907 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Handle built-in unary operators when reporting ambiguities.Fariborz Jahanian
wip - To prune excessive reporting. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-11Test exception spec compatibility on return type and parameters.Sebastian Redl
Along the way, use RequireCompleteType when testing exception spec types. Separate all the ugly spec stuff into its own file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83764 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10Implement the core checking for compatible exception specifications in ↵Sebastian Redl
assignment and initialization. The exception specification of the assignee must be the same or a subset of the target. In addition, exception specifications on arguments and return types must be equivalent, but this is not implemented yet. This currently produces two diagnostics for every invalid assignment/initialization, due to the diagnostic produced outside PerformImplicitConversion, e.g. in CheckSingleInitializer. I don't know how to suppress this; in any case I think it is the wrong place for a diagnostic, since there are other diagnostics produced inside the function. So I'm leaving it as it is for the moment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83710 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10Qualified lookup through using declarations. Diagnose a new type of ambiguity.John McCall
Split the various ambiguous result enumerators into their own enum. Tests for most of C++ [namespace.qual]. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09Add CheckCallReturnType and start using it for regular call expressions. ↵Anders Carlsson
This will improve error messages. For struct B; B f(); void g() { f(); } We now get t.cpp:6:3: error: calling 'f' with incomplete return type 'struct B' f(); ^~~ t.cpp:3:3: note: 'f' declared here B f(); ^ t.cpp:1:8: note: forward declaration of 'struct B' struct B; ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09Dead Code EliminationDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83686 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09Refactor the LookupResult API to simplify most common operations. Require ↵John McCall
users to pass a LookupResult reference to lookup routines. Call out uses which assume a single result. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83674 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09Improve on reporting ambiguity involving built-in candidates.Fariborz Jahanian
I still don't like it but it is improvement over what we had. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83603 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-08Add code completion support for ObjC property declarations/attributes.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83579 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-08For instantiations of static data members of class templates, keepDouglas Gregor
track of the kind of specialization or instantiation. Also, check the scope of the specialization and ensure that a specialization declaration without an initializer is not a definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07Type checking for specializations of member functions of classDouglas Gregor
templates. Previously, these weren't handled as specializations at all. The AST for representing these as specializations is still a work in progress. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83498 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07Refactor checking of the scope of explicit template specializationDouglas Gregor
declarations and explicit template instantiations, improving diagnostics and making the code usable for function template specializations (as well as class template specializations and partial specializations). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83436 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-06Refactor the code that walks a C++ inheritance hierarchy, searchingDouglas Gregor
for bases, members, overridden virtual methods, etc. The operations isDerivedFrom and lookupInBases are now provided by CXXRecordDecl, rather than by Sema, so that CodeGen and other clients can use them directly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83396 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01- Remove Sema::FindMethodInNestedImplementations().Steve Naroff
- Add ObjCInterfaceDecl::lookupPrivateInstanceMethod(). - Convert clients. No functionality change - One less method in Sema:-) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83224 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01Patch to implement static casting which requires one Fariborz Jahanian
user-defined type conversion. Fixes PR5040. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83211 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-2913.1-p3 Overloadable declarationsFariborz Jahanian
Parameter declarations that differ only in the presence or absence of const and/or volatile are equivalent. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83104 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-29Introduce ObjCProtocolListLoc for keeping source location information for ↵Argyrios Kyrtzidis
protocol references. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83094 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28Define and use a helper method to call a type conversionFariborz Jahanian
function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28Teach Sema::isDeclInScope to handle overload sets constructed fromDouglas Gregor
functions that occur in multiple declaration contexts, e.g., because some were found via using declarations. Now, isDeclInScope will build a new overload set (when needed) containing only those declarations that are actually in scope. This eliminates a problem found with libstdc++'s <iostream>, where the presence of using In the longer term, I'd like to eliminate Sema::isDeclInScope in favor of better handling of the RedeclarationOnly flag in the name-lookup routines. That way, name lookup only returns the entities that matter, rather than taking the current two-pass approach of producing too many results and then filtering our the wrong results. It's not efficient, and I'm sure that we aren't filtering everywhere we should be. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82954 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25Use explicitly-specified template argument lists to help namingDouglas Gregor
explicit template specializations, when available. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82824 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25WIP implementation of explicit instantiation of function templates,Douglas Gregor
member functions of class template specializations, and static data members. The mechanics are (mostly) present, but the semantic analysis is very weak. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25Fix checking for a null pointer constant when the expression itself isDouglas Gregor
value-dependent. Audit (and fixed) all calls to Expr::isNullPointerConstant() to provide the correct behavior with value-dependent expressions. Fixes PR5041 and a crash in libstdc++ <locale>. In the same vein, properly compute value- and type-dependence for ChooseExpr. Fixes PR4996. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-24When entering the scope of a declarator, make sure that the scope isDouglas Gregor
complete (or, possibly causing template instantiation). Test this via some explicit specializations of member functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82732 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-24WIP implementation of explicit function template specialization. ThisDouglas Gregor
first implementation recognizes when a function declaration is an explicit function template specialization (based on the presence of a template<> header), performs template argument deduction + ambiguity resolution to determine which template is being specialized, and hooks There are many caveats here: - We completely and totally drop any explicitly-specified template arguments on the floor - We don't diagnose any of the extra semantic things that we should diagnose. - I haven't looked to see that we're getting the right linkage for explicit specializations On a happy note, this silences a bunch of errors that show up in libstdc++'s <iostream>, although Clang still can't get through the entire header. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-23Improve diagnostic location information when checking the initialization of ↵Douglas Gregor
a reference git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82666 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-23This patch addresses a few issues related to 8.5.3 [dcl.init.ref]Fariborz Jahanian
It uses a recent API to find inherited conversion functions to do the initializer to reference lvalue conversion (and removes a FIXME). It issues the ambiguity diagnostics when multiple conversions are found. WIP. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82649 91177308-0d34-0410-b5e6-96231b3b80d8
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