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path: root/lib/Sema/SemaDeclCXX.cpp
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2009-12-02Make sure to call AddOverriddenMethods for implicit copy assignment operators;Eli Friedman
it's rare, but possible, for the difference to be significant. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90301 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01Fix a code gen. crash synthesizing a destructor.Fariborz Jahanian
Fixes pr5660. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90283 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01Move the checking of overridden virtual functions into the code pathDouglas Gregor
common to both parsing and template instantiation, so that we'll find overridden virtuals for member functions of class templates when they are instantiated. Additionally, factor out the checking for pure virtual functions, so that it will be executed both at parsing time and at template instantiation time. These changes fix PR5656 (for real), although one more tweak w.r.t. member function templates will be coming along shortly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90241 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01Don't automatically assume that an id-expression refers to aDouglas Gregor
ValueDecl, because that isn't always the case in ill-formed code. Diagnose a common mistake (forgetting to provide a template argument list for a class template, PR5655) and dyn_cast so that we handle the general problem of referring to a non-value declaration gracefully. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90239 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30When we're trying to define an implicit virtual destructor, make sure that ↵Anders Carlsson
we have a valid delete operator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90156 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-28Remove remaining VISIBILITY_HIDDEN from anonymous namespaces.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90044 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-28Add Parser support for C++0x literal operators ('operator "" i').Sean Hunt
DeclarationName can't handle them yet, so right now Parser just errors out on them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-26When adding an implicit destructor, make sure to mark it as virtual if it ↵Anders Carlsson
overrides existing destructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25Better diagnostic on deleted constructor when noFariborz Jahanian
initializer name is available. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25Diagnose ill-formed uses of default template arguments inDouglas Gregor
function templates (in C++98), friend function templates, and out-of-line definitions of members of class templates. Also handles merging of default template arguments from previous declarations of function templates, for C++0x. However, we don't yet make use of those default template arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89872 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25Eliminate CXXConditionDeclExpr with extreme prejudice.Douglas Gregor
All statements that involve conditions can now hold on to a separate condition declaration (a VarDecl), and will use a DeclRefExpr referring to that VarDecl for the condition expression. ForStmts now have such a VarDecl (I'd missed those in previous commits). Also, since this change reworks the Action interface for if/while/switch/for, use FullExprArg for the full expressions in those expressions, to ensure that we're emitting Note that we are (still) not generating the right cleanups for condition variables in for statements. That will be a follow-on commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89817 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-24Have the parser tell sema whether a member declaration is a function ↵Sebastian Redl
definition. This allows sema to not emit spurious diagnostics in some invalid code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89816 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-24Refactor argument collection of constructor calls usingFariborz Jahanian
the common routine. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89802 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Let using directives refer to namespace aliases. Fixes PR5479.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Do not mark declarations as used when performing overload resolution. Fixes ↵Douglas Gregor
PR5541 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Encapsulate "an array of TemplateArgumentLocs and two angle bracket ↵John McCall
locations" into a new class. Use it pervasively throughout Sema. My fingers hurt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89638 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21"Incremental" progress on using expressions, by which I mean totally rippingJohn McCall
into pretty much everything about overload resolution in order to wean BuildDeclarationNameExpr off LookupResult::getAsSingleDecl(). Replace UnresolvedFunctionNameExpr with UnresolvedLookupExpr, which generalizes the idea of a non-member lookup that we haven't totally resolved yet, whether by overloading, argument-dependent lookup, or (eventually) the presence of a function template in the lookup results. Incidentally fixes a problem with argument-dependent lookup where we were still performing ADL even when the lookup results contained something from a block scope. Incidentally improves a diagnostic when using an ObjC ivar from a class method. This just fell out from rewriting BuildDeclarationNameExpr's interaction with lookup, and I'm too apathetic to break it out. The only remaining uses of OverloadedFunctionDecl that I know of are in TemplateName and MemberExpr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89544 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-21Added rudimentary C++0x attribute support.Sean Hunt
The following attributes are currently supported in C++0x attribute lists (and in GNU ones as well): - align() - semantics believed to be conformant to n3000, except for redeclarations and what entities it may apply to - final - semantics believed to be conformant to CWG issue 817's proposed wording, except for redeclarations - noreturn - semantics believed to be conformant to n3000, except for redeclarations - carries_dependency - currently ignored (this is an optimization hint) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89543 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18Overhaul previous-declaration and overload checking to work on lookup resultsJohn McCall
rather than NamedDecl*. This is a major step towards eliminating OverloadedFunctionDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89263 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18Split LookupResult into its own header.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18Incremental progress on using declarations. Split UnresolvedUsingDecl intoJohn McCall
two classes, one for typenames and one for values; this seems to have some support from Doug if not necessarily from the extremely-vague-on-this-point standard. Track the location of the 'typename' keyword in a using-typename decl. Make a new lookup result for unresolved values and deal with it in most places. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Silence some warnings produced by Clang, and add a missing headerDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89051 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Instead of hanging a using declaration's target decls directly off the using John McCall
decl, create shadow declarations and put them in scope like normal. Work in progress. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89048 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Unify the way destructor epilogues are generated for synthesized and regular ↵Anders Carlsson
destructors. Also fix PR5529. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89034 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Carry lookup configuration throughout lookup on the LookupResult. GiveJohn McCall
LookupResult RAII powers to diagnose ambiguity in the results. Other diagnostics (e.g. access control and deprecation) will be moved to automatically trigger during lookup as part of this same mechanism. This abstraction makes it much easier to encapsulate aliasing declarations (e.g. using declarations) inside the lookup system: eventually, lookup will just produce the aliases in the LookupResult, and the standard access methods will naturally strip the aliases off. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16Simplify the AST a bit by skipping creating member initializers for membersEli Friedman
with a trivial constructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88990 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16First part of changes to eliminate problems with cv-qualifiers andDouglas Gregor
sugared types. The basic problem is that our qualifier accessors (getQualifiers, getCVRQualifiers, isConstQualified, etc.) only look at the current QualType and not at any qualifiers that come from sugared types, meaning that we won't see these qualifiers through, e.g., typedefs: typedef const int CInt; typedef CInt Self; Self.isConstQualified() currently returns false! Various bugs (e.g., PR5383) have cropped up all over the front end due to such problems. I'm addressing this problem by splitting each qualifier accessor into two versions: - the "local" version only returns qualifiers on this particular QualType instance - the "normal" version that will eventually combine qualifiers from this QualType instance with the qualifiers on the canonical type to produce the full set of qualifiers. This commit adds the local versions and switches a few callers from the "normal" version (e.g., isConstQualified) over to the "local" version (e.g., isLocalConstQualified) when that is the right thing to do, e.g., because we're printing or serializing the qualifiers. Also, switch a bunch of Context.getCanonicalType(T1).getUnqualifiedType() == Context.getCanonicalType(T2).getQualifiedType() expressions over to Context.hasSameUnqualifiedType(T1, T2) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-15Make sure that virtual destructors have delete operators.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88877 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-15Don't gratuitously mark the default constructors of base or member ↵Douglas Gregor
initializers as used git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14- Have TryStaticImplicitCast set the cast kind to NoOp when binding a ↵Sebastian Redl
reference. CheckReferenceInit already inserts implicit casts to the necessary types. This fixes an assertion in CodeGen for some casts and brings a fix for PR5453 close, if I understand that bug correctly. - Also, perform calculated implicit cast sequences if they're determined to work. This finally diagnoses static_cast to ambiguous or implicit bases and fixes two long-standing fixmes in the test case. For the C-style cast, this requires propagating the access check suppression pretty deep into other functions. - Pass the expressions for TryStaticCast and TryStaticImplicitCast by reference. This should lead to a better AST being emitted for such casts, and also fixes a memory leak, because CheckReferenceInit and PerformImplicitConversion wrap the node passed to them. These wrappers were previously lost. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88809 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14When type-checking a static cast (or the static_cast part of a C-styleDouglas Gregor
cast) that is converting to a class type, enumerate its constructors as in any other direct initialization. This ensures that we get the proper conversion sequence. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88751 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14If we attempt to add a constructor template specialization that looksDouglas Gregor
like a copy constructor to the overload set, just ignore it. This ensures that we don't try to use such a constructor as a copy constructor *without* triggering diagnostics at the point of declaration. Note that we *do* diagnose such copy constructors when explicitly written by the user (e.g., as an explicit specialization). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Clear temporaries in more places.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88687 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Fix bug Doug noticed.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88679 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13When transforming an expression statement (e.g., for templateDouglas Gregor
instantiation), be sure to finish the expression statement by providing a FullExprArg, making sure that temporaries get destroyed. Fixes an obscure failure when parsing llvm/LinkAllPasses.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88668 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Give CanQual<T> an implicit conversion to bool, so that it can be usedDouglas Gregor
in "if" statements like: if (CanQual<ReferenceType> RefType = T.getAs<ReferenceType>()) Thanks to Clang for pointing out this mistake :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86995 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Random const correctness, and incidentally use computeDeclContext when buildingJohn McCall
a using declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86942 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Diagnose illegally typed operator new/new[].Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86755 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Improve parsing of template arguments to lay the foundation forDouglas Gregor
handling template template parameters properly. This refactoring: - Parses template template arguments as id-expressions, representing the result of the parse as a template name (Action::TemplateTy) rather than as an expression (lame!). - Represents all parsed template arguments via a new parser-specific type, ParsedTemplateArgument, which stores the kind of template argument (type, non-type, template) along with all of the source information about the template argument. This replaces an ad hoc set of 3 vectors (one for a void*, which was either a type or an expression; one for a bit telling whether the first was a type or an expression; and one for a single source location pointing at the template argument). - Moves TemplateIdAnnotation into the new Parse/Template.h. It never belonged in the Basic library anyway. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Use PP.getLocForEndOfToken as suggested by John.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86661 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10If a function with a default argument is redefined and the new function also ↵Anders Carlsson
has a defualt argument then add a fixit hint that removes the default argument. Fixes PR5444. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86659 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Add additional note to mark the cause of synthesized constructors. MarkEli Friedman
declaration invalid if the constructor can't be properly built. Addresses remaining review comments from Fariborz for r86500. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86579 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Remove a useless variable that got left behind.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Unify the codepaths used to verify base and member initializers for explicitlyEli Friedman
and implicitly defined constructors. This has a number of benefits: 1. Less code. 2. Explicit and implicit constructors get the same diagnostics. 3. The AST explicitly contains constructor calls from implicit default constructors. This allows handing some cases that previously weren't handled correctly in IRGen without any additional code. Specifically, implicit default constructors containing calls to constructors with default arguments are now handled correctly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Always make sure we're using an unqualified type when building aDouglas Gregor
constructor name. Fixes PR5418. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07Make sure isCopyAssignment is only true for actual copy assignment operators,Eli Friedman
instead of all assignment operators. The mistake messes up IRGen because it ends up assuming that the assignment operator is actually the implicit copy assignment operator, and therefore tries to emit the RHS as an lvalue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86307 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06This patch implements Sema for clause 13.3.3.1p4.Fariborz Jahanian
It has to do with vararg constructors used as conversion functions. Code gen needs work. This is WIP. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Fixed two places where we needed to force completion of a typeDouglas Gregor
(without complaining if it fails) to get proper semantics: reference binding with a derived-to-base conversion and the enumeration of constructors for user-defined conversions. There are probably more cases to fix, but my prior attempt at statically ensuring that complete-type checking always happens failed. Perhaps I'll try again. With this change, Clang can parse include/llvm/*.h! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86129 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Comments, formatting. Based on patch by Brandon Pearcy!John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86065 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Diagnose using a field to initialize itself. Patch by Brandon Pearcy!John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86061 91177308-0d34-0410-b5e6-96231b3b80d8
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