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path: root/lib/Sema/SemaDeclCXX.cpp
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2013-01-14Refactor to call ActOnFinishFullExpr on every full expression. TeachRichard Smith
ActOnFinishFullExpr that some of its checks only apply to discarded-value expressions. This adds missing checks for unexpanded variadic template parameter packs to a handful of constructs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172485 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-13ArrayRef'ize Sema APIs related to format string checkingDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172367 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Remove useless 'llvm::' qualifier from names like StringRef and others that areDmitri Gribenko
brought into 'clang' namespace by clang/Basic/LLVM.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172323 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Tighten types a bit. No functionality change.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171894 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02s/CPlusPlus0x/CPlusPlus11/gRichard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29ArrayRefize a CompoundStmt constructor.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19PR13470: Ensure that copy-list-initialization isntantiates asRichard Smith
copy-list-initialization (and doesn't add an additional copy step): Fill in the ListInitialization bit when creating a CXXConstructExpr. Use it when instantiating initializers in order to correctly handle instantiation of copy-list-initialization. Teach TreeTransform that function arguments are initializations, and so need this special treatment too. Finally, remove some hacks which were working around SubstInitializer's shortcomings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170489 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19Change DeclContextLookup(Const)Result to (Mutable)ArrayRef<NamedDecl*>, as ↵David Blaikie
per review discussion in r170365 This does limit these typedefs to being sequences, but no current usage requires them to be contiguous (we could expand this to a more general iterator pair range concept at some point). Also, it'd be nice if SmallVector were constructible directly from an ArrayRef but this is a bit tricky since ArrayRef depends on SmallVectorBaseImpl for the inverse conversion. (& generalizing over all range-like things, while nice, would require some nontrivial SFINAE I haven't thought about yet) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170482 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11PR14558: Compute triviality of special members (etc) at the end of the classRichard Smith
definition, rather than at the end of the definition of the set of nested classes. We still defer checking of the user-specified exception specification to the end of the nesting -- we can't check that until we've parsed the in-class initializers for non-static data members. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169805 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-09Virtual method overrides can no longer have mismatched calling conventions. ↵Aaron Ballman
This fixes PR14339. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169705 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-09PR14550: If a system header contains a bogus constexpr function definition,Richard Smith
don't mark the function as invalid, since we suppress the error. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-08Finish implementing 'selected constructor' rules for triviality in C++11. InRichard Smith
the cases where we can't determine whether special members would be trivial while building the class, we eagerly declare those special members. The impact of this is bounded, since it does not trigger implicit declarations of special members in classes which merely *use* those classes. In order to determine whether we need to apply this rule, we also need to eagerly declare move operations and destructors in cases where they might be deleted. If a move operation were supposed to be deleted, it would instead be suppressed, and we could need overload resolution to determine if we fall back to a trivial copy operation. If a destructor were implicitly deleted, it would cause the move constructor of any derived classes to be suppressed. As discussed on cxx-abi-dev, C++11's selected constructor rules are also retroactively applied as a defect resolution in C++03 mode, in order to identify that class B has a non-trivial copy constructor (since it calls A's constructor template, not A's copy constructor): struct A { template<typename T> A(T &); }; struct B { mutable A a; }; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169673 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-08Remove some remnants of the assumption that there is at most one of eachRichard Smith
flavour of special member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169670 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-08Properly compute triviality for explicitly-defaulted or deleted special members.Richard Smith
Remove pre-standard restriction on explicitly-defaulted copy constructors with 'incorrect' parameter types, and instead just make those special members non-trivial as the standard requires. This required making CXXRecordDecl correctly handle classes which have both a trivial and a non-trivial special member of the same kind. This also fixes PR13217 by reimplementing DiagnoseNontrivial in terms of the new triviality computation technology. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169667 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07Per [dcl.fct.def.default]p1, don't allow variadic special members to be ↵Richard Smith
defaulted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169574 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Consistently use 'needsImplicit<special member>' to determine whether we needRichard Smith
an implicit special member, rather than sometimes using '!hasDeclared<special member>'. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169075 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29The declaration of a special member can require overload resolution to beRichard Smith
performed, to determine whether that special member is deleted or constexpr. That overload resolution process can in turn trigger the instantiation of a template, which can do anything, including triggering the declaration of that very same special member function. When this happens, do not try to recursively declare the special member -- that's impossible. Instead, only try to realise the truth. There is no special member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168847 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Store on the CXXRecordDecl whether the class has, or would have, a copyRichard Smith
constructor/assignment operator with a const-qualified parameter type. The prior method for determining this incorrectly used overload resolution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168775 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28C++ core issue 1344, PR10618: promote "addition of default argument makes thisRichard Smith
a special member" diagnostic from warning to error, and fix the cases where it produced diagnostics with incorrect wording. We don't support this as an extension, and we ban it even in C++98 mode. This breaks too much (for instance, the ABI-specified calling convention for a type can change if it acquires a copy constructor through the addition of a default argument). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168769 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Simplify checking for whether we should implicitly declare special members andRichard Smith
add some assertions. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168725 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16A step towards sorting out handling of triviality of special members in C++11.Richard Smith
Separate out the notions of 'has a trivial special member' and 'has a non-trivial special member', and use them appropriately. These are not opposites of one another (there might be no special member, or in C++11 there might be a trivial one and a non-trivial one). The CXXRecordDecl predicates continue to produce incorrect results, but do so in fewer cases now, and they document the cases where they might be wrong. No functionality changes are intended here (they will come when the predicates start producing the right answers...). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168119 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Teach the uninitialized field warning about anonymous structs and union members.Nick Lewycky
Fixes PR14073! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Remove another questionable use of hasTrivial*. The relevant thing for thisRichard Smith
test was whether the /selected/ operator= was trivial, not whether the class had any trivial (or any non-trivial) operator=s. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167897 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Fix some wrong-code bugs in implicitly-defined assignment operators:Richard Smith
- In C++11, perform overload resolution over all assignment operators, rather than just looking for copy/move assignment operators. - Clean up after temporaries produced by operator= immediately, rather than accumulating them until the end of the function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167798 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Factor duplicated implicit memcpy call generation code out of copy/moveRichard Smith
assignment generation. This incidentally avoids reusing the same Expr* across multiple statements in the same object; that was generating slightly broken ASTs, but I couldn't trigger any observable bad behavior, so no test. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167779 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Rework my implementation of circular-reference finding to not useDouglas Gregor
CXXRecordDecl::forallBases, which does *not* do what I need. Fixes the failure introduced in r167651. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167668 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Diagnostic circular inheritance involving dependent base classes. WeDouglas Gregor
would have diagnosed this at instantiation time anyway, if only we didn't hang on all of these test cases. Fixes <rdar://problem/12629723> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167651 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-04Put the usage-directive inside the nearest namespace or TU decl. We don't wantNick Lewycky
to have UsingDirectiveDecl inside anything other than those two. No user-visible functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167376 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20Rework implementation of DR1492: Apply the resolution to operator delete too,Richard Smith
since it also has an implicit exception specification. Downgrade the error to an extwarn, since at least for operator delete, system headers like to declare it as 'noexcept' whereas the implicit definition does not have an explicit exception specification. Move the exception specification for user-declared 'operator delete' functions from the type-as-written into the type, to reflect reality and to allow us to detect whether there was an implicit exception spec or not. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166372 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Handle diamond inheritance in -Woverloaded-virtual.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166254 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Fix Objective-C implicit property synthesis for C++ classes so we use valid Eli Friedman
source locations in places where it is necessary for diagnostics. By itself, this causes assertions, so while I'm here, also fix property synthesis for properties of C++ class type so we use so we properly set up a scope and mark variable declarations. <rdar://problem/12514189>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Fix -Woverloaded-virtual when the using statement refers to a base ↵David Blaikie
declaration of a virtual function. GCC and Clang both do not warn on: struct a { virtual void func(); }; struct b: a { virtual void func(); void func(int); }; struct c: b { void func(int); using b::func; }; but if the "using" was using a::func GCC would still remain silent where Clang would warn. This change makes Clang consistent with GCC's existing behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166154 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-12Fix typo correction of one qualified name to another.David Blaikie
When suggesting "foo::bar" as a correction for "fob::bar" we mistakenly replaced only "bar" with "foo::bar" producing "fob::foo::bar" which was broken. This corrects that replacement in as many places as I could find & provides test cases for all those cases I could find a test case for. There are a couple that don't seem to be reachable (one looks entirely dead, the other just doesn't seem to ever get called with a namespace to namespace change). Review by Richard Smith ( http://llvm-reviews.chandlerc.com/D57 ). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165817 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10Fix stack overflow when trying to create an implicit movingArgyrios Kyrtzidis
constructor with invalid code. rdar://12240916 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165623 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-05Workaround for libstdc++4.6 <atomic> bug: make comment more explicit about ↵Richard Smith
what's going on, per Sean Silva's suggestion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165286 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-04Egriegious hack to support libstdc++4.6's broken <atomic> header, which definesRichard Smith
a non-inline namespace, then reopens it as inline to try to add its symbols to the surrounding namespace. In this one special case, permit the namespace to be reopened as inline, and patch up the name lookup tables to match. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165263 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-02Add FP_CONTRACT support for clang.Lang Hames
Clang will now honor the FP_CONTRACT pragma and emit LLVM fmuladd intrinsics for expressions of the form A * B + C (when they occur in a single statement). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164989 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25Fix for r163013 regression and further __interface enhancement.John McCall
Patch by Andy Gibbs! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164590 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25Don't produce diagnostics for missing ctor-initializers during templateRichard Smith
instantiations if we encountered errors parsing some of the initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-21Make warnings about uninitialized fields include the field name.Hans Wennborg
This makes the wording more informative, and consistent with the other warnings about uninitialized variables. Also, me and David who reviewed this couldn't figure out why we would need to do a lookup to get the name of the variable; so just print the name directly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-21Doxygen-ify a comment.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164360 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-21PR13890: Warn on abstract final classes.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164359 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-20Per C++11 [class.friend]p3, the 'friend' keyword must appear first in aRichard Smith
non-function friend declaration. Patch by Josh Magee! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164273 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Warn about self references in in-class initializers.Hans Wennborg
This makes Clang warn about self references in in-class initializers, for example: struct S { int a = a + 42; }; This basically just moves UninitializedFieldVisitor up a bit in SemaDeclCXX.cpp, and adds a call to it from ActOnCXXInClassMemberInitializer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17Don't write uninitialized values even if nobody ever asks for it.Axel Naumann
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164033 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-14When diagnosing multiple mem-initializers in a delegating ctor, point to the ↵Richard Smith
delegating initializer, not to the first initializer. For good measure, also highlight the other initializer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163919 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-14As we do with base and member initializers in a dependent class, delayDouglas Gregor
type checking for non-static data member initializers in a dependent class, because our ASTs lose too much information to when type-checking an initializer. Fixes <rdar://problem/11974632>, although the result is still rather unsatisfactory. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163871 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Remove redundant semicolons which are null statements.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163546 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Don't try to check override control for invalid member functions. Fixes a ↵Richard Smith
crash in a corner case. Patch by Olivier Goffart! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163337 91177308-0d34-0410-b5e6-96231b3b80d8
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