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2011-03-26Extend the new 'availability' attribute with support for anDouglas Gregor
'unavailable' argument, which specifies that the declaration to which the attribute appertains is unavailable on that platform. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128329 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Remove the last of ClassVirtSpecifiers.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128279 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Get rid of handling of the 'explicit' keyword from class-head. We still ↵Anders Carlsson
parse it though, although that will change shortly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128277 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Remove 'new' from virt-specifier since it's going to be removed in the next ↵Anders Carlsson
C++0x draft git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128271 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Apply the nonnull attribute to constructor expressions too.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128253 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24Insomniac refactoring: change how the parser allocates attributes so thatJohn McCall
AttributeLists do not accumulate over the lifetime of parsing, but are instead reused. Also make the arguments array not require a separate allocation, and make availability attributes store their stuff in augmented memory, too. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128209 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Call out ObjC parameter types as a different kind of declarator contextJohn McCall
from a normal type-spec, just for completeness. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128185 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Support for Transparent unions used as overloadableFariborz Jahanian
function parameter. // rdar:// 9129552 and PR9406. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Teach DelayedDiagnostic to copy its string, rather than hope that theDouglas Gregor
string itself lives longer than the DelayedDiagnostic. Fixes a recent use-after-free regression due to my availability attribute work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Implement a new 'availability' attribute, that allows one to specifyDouglas Gregor
which versions of an OS provide a certain facility. For example, void foo() __attribute__((availability(macosx,introduced=10.2,deprecated=10.4,obsoleted=10.6))); says that the function "foo" was introduced in 10.2, deprecated in 10.4, and completely obsoleted in 10.6. This attribute ties in with the deployment targets (e.g., -mmacosx-version-min=10.1 specifies that we want to deploy back to Mac OS X 10.1). There are several concrete behaviors that this attribute enables, as illustrated with the function foo() above: - If we choose a deployment target >= Mac OS X 10.4, uses of "foo" will result in a deprecation warning, as if we had placed attribute((deprecated)) on it (but with a better diagnostic) - If we choose a deployment target >= Mac OS X 10.6, uses of "foo" will result in an "unavailable" warning (in C)/error (in C++), as if we had placed attribute((unavailable)) on it - If we choose a deployment target prior to 10.2, foo() is weak-imported (if it is a kind of entity that can be weak imported), as if we had placed the weak_import attribute on it. Naturally, there can be multiple availability attributes on a declaration, for different platforms; only the current platform matters when checking availability attributes. The only platforms this attribute currently works for are "ios" and "macosx", since we already have -mxxxx-version-min flags for them and we have experience there with macro tricks translating down to the deprecated/unavailable/weak_import attributes. The end goal is to open this up to other platforms, and even extension to other "platforms" that are really libraries (say, through a #pragma clang define_system), but that hasn't yet been designed and we may want to shake out more issues with this narrower problem first. Addresses <rdar://problem/6690412>. As a drive-by bug-fix, if an entity is both deprecated and unavailable, we only emit the "unavailable" diagnostic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128127 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Don't clear OverloadCandidateSets on destruction, it has no effect anymore.Benjamin Kramer
And clearing a SmallPtrSet can be an expensive operation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128081 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Add support for language-specific address spaces. On top of that,Peter Collingbourne
add support for the OpenCL __private, __local, __constant and __global address spaces, as well as the __read_only, _read_write and __write_only image access specifiers. Patch originally by ARM; language-specific address space support by myself. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127915 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17Fix PR9488: 'auto' type substitution can fail (for instance, if it creates a ↵Richard Smith
reference-to-void type). Don't crash if it does. Also fix an issue where type source information for the resulting type was being lost. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16Use ElaboratedType also for C.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127755 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16When we're inserting a synthesized label declaration for aDouglas Gregor
forward-looking "goto" statement, make sure to insert it *after* the last declaration in the identifier resolver's declaration chain that is either outside of the function/block/method's scope or that is declared in that function/block/method's specific scope. Previously, we could end up inserting the label ahead of declarations in inner scopes, confusing C++ name lookup. Fixes PR9491/<rdar://problem/9140426> and <rdar://problem/9135994>. Note that the crash-on-invalid PR9495 is *not* fixed. That's a separate issue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15Implement a hack to work around the changing exception specification of ↵Sebastian Redl
operator new in C++0x. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127688 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14When synthesizing a label declaration based on a goto statement thatDouglas Gregor
cannot yet be resolved, be sure to push the new label declaration into the right place within the identifier chain. Otherwise, name lookup in C++ gets confused when searching for names that are lexically closer than the label. Fixes PR9463. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127623 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12Place duplicate argument declaration in inFariborz Jahanian
method prototypes under the -Wduplicate-method-arg and turn it off by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127552 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12Propagate the new exception information to FunctionProtoType.Sebastian Redl
Change the interface to expose the new information and deal with the enormous fallout. Introduce the new ExceptionSpecificationType value EST_DynamicNone to more easily deal with empty throw specifications. Update the tests for noexcept and fix the various bugs uncovered, such as lack of tentative parsing support. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12Forgotten part of previous commit.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12Fixes for some more expressions containing function templateids thatDouglas Gregor
should be resolvable, from Faisal Vali! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11Add support for the OpenCL vec_step operator, by generalising andPeter Collingbourne
extending the existing support for sizeof and alignof. Original patch by Guy Benyei. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127475 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10Avoid do drop outer template parameter lists on the floor.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09Lookup selector in protocol list of qualified objc typeFariborz Jahanian
to avoid a bogus warning. // rdar:// 9072298 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127355 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Teach libclang's token-annotation logic about context-sensitiveDouglas Gregor
keywords for Objective-C+ and C++0x. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127253 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Fixed source range for StaticAssertDecl and LinkageSpecDecl. Fixed source ↵Abramo Bagnara
range for declarations using postfix types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127251 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Fixed NamespaceDecl source range.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127242 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Fixed source range for all DeclaratorDecl's.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127225 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Fix my earlier commit to work with escaped newlines and leave breadcrumbsJohn McCall
in case we want to make a world where we can check intermediate instantiations for this kind of breadcrumb. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127221 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07Support explicit template specialization and instantiation for membersDouglas Gregor
of a C++0x inline namespace within enclosing namespaces, as noted in C++0x [namespace.def]p8. Fixes <rdar://problem/9006349>, a libc++ failure where Clang was rejected an explicit specialization of std::swap (since libc++ puts it into an inline, versioned namespace std::__1). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127162 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-06Reinstate r127112, "Propagate new-style exception spec information to ↵Sebastian Redl
ExtProtoInfo.", this time with the missing header. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127118 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-06Revert r127112, "Propagate new-style exception spec information to ↵NAKAMURA Takumi
ExtProtoInfo." It seems missing "clang/Basic/ExceptionSpecificationType.h". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127115 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Propagate new-style exception spec information to ExtProtoInfo.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Propagate new-style exception spec information to Declarator.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127111 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Fixed LabelDecl source range and cleaned creation code.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127094 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Parser support for noexcept specifications.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127086 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04When clearing a LookupResult structure, clear out the naming class,Douglas Gregor
too. Fixes PR7900. While I'm in this area, improve the diagnostic when the type being destroyed doesn't match either of the types we found. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127041 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04Teach Sema::ActOnCXXNestedNameSpecifier and Sema::CheckTemplateIdTypeDouglas Gregor
to cope with non-type templates by providing appropriate errors. Previously, we would either assert, crash, or silently build a dependent type when we shouldn't. Fixes PR9226. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127037 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03Fixed source range for FileScopeAsmDecl. Others source range fixes will follow.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126939 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03When we use the default template arguments of a template templateDouglas Gregor
parameter, save the instantiated default template arguments along with the explicitly-specified template argument list. That way, we prefer the default template template arguments corresponding to the template template parameter rather than those of its template template argument. This addresses the likely direction of C++ core issue 150, and fixes PR9353/<rdar://problem/9069136>, bringing us closer to the behavior of EDG and GCC. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126920 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Kill off TreeTransform::TransformNestedNameSpecifier() in favor of theDouglas Gregor
source-location-preserving TreeTransform::TranformNestedNameSpecifierLoc(). No functionality change: the victim had no callers (that themselves had callers) anyway. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Kill off the TreeTransform::TransformTemplateName overload that hasDouglas Gregor
poor source-location information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Provide an attribute, objc_method_family, to allow the inferred familyJohn McCall
of an Objective-C method to be overridden on a case-by-case basis. This is a higher-level tool than ns_returns_retained &c.; it lets users specify that not only does a method have different retain/release semantics, but that it semantically acts differently than one might assume from its name. This in turn is quite useful to static analysis. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126839 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Support a new InheritableAttr subclass, InheritableParamAttr, which isJohn McCall
used for attributes that are okay to inherit when written on a parameter. Dependent on LLVM r126827. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Push nested-name-specifier source-location information into dependentDouglas Gregor
template specialization types. This also required some parser tweaks, since we were losing track of the nested-name-specifier's source location information in several places in the parser. Other notable changes this required: - Sema::ActOnTagTemplateIdType now type-checks and forms the appropriate type nodes (+ source-location information) for an elaborated-type-specifier ending in a template-id. Previously, we used a combination of ActOnTemplateIdType and ActOnTagTemplateIdType that resulted in an ElaboratedType wrapped around a DependentTemplateSpecializationType, which duplicated the keyword ("class", "struct", etc.) and nested-name-specifier storage. - Sema::ActOnTemplateIdType now gets a nested-name-specifier, which it places into the returned type-source location information. - Sema::ActOnDependentTag now creates types with source-location information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126808 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01For C++, enhance -Warray-bounds to recursively analyze array subscript ↵Ted Kremenek
accesses in ?: expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126766 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Reinstate the introduction of source-location information forDouglas Gregor
nested-name-speciciers within elaborated type names, e.g., enum clang::NestedNameSpecifier::SpecifierKind Fixes in this iteration include: (1) Compute the type-source range properly for a dependent template specialization type that starts with "template template-id ::", as in a member access expression dep->template f<T>::f() This is a latent bug I triggered with this change (because now we're checking the computed source ranges for dependent template specialization types). But the real problem was... (2) Make sure to set the qualifier range on a dependent template specialization type appropriately. This will go away once we push nested-name-specifier locations into dependent template specialization types, but it was the source of the valgrind errors on the buildbots. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Revert r126748, my second attempt at nested-name-specifier sourceDouglas Gregor
location information for elaborated types. *sigh* git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126753 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Reinstate r126737, extending the generation of type-source locationDouglas Gregor
information for qualifier type names throughout the parser to address several problems. The commit message from r126737: Push nested-name-specifier source location information into elaborated name types, e.g., "enum clang::NestedNameSpecifier::SpecifierKind". Aside from the normal changes, this also required some tweaks to the parser. Essentially, when we're looking at a type name (via getTypeName()) specifically for the purpose of creating an annotation token, we pass down the flag that asks for full type-source location information to be stored within the returned type. That way, we retain source-location information involving nested-name-specifiers rather than trying to reconstruct that information later, long after it's been lost in the parser. With this change, test/Index/recursive-cxx-member-calls.cpp is showing much improved results again, since that code has lots of nested-name-specifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Revert r126737, the most recent nested-name-specifier location change, for ↵Douglas Gregor
buildbot breakage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126746 91177308-0d34-0410-b5e6-96231b3b80d8
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