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path: root/include/clang/Sema/Sema.h
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2012-05-16Include the correct conversion context locations for condition expressions.David Blaikie
This improves the conversion diagnostics (by correctly pointing to the loop construct for conversions that may've been caused by the contextual conversion to bool caused by a condition expression) and also causes the NULL conversion warnings to be correctly suppressed when crossing a macro boundary in such a context. (previously, since the conversion context location was incorrect, the suppression could not be performed) Reported by Nico Weber as feedback to r156826. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156901 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16[libclang/AST] Index references of protocols in "@protocol(...)" syntax.Argyrios Kyrtzidis
To do that, keep track of the location of the protocol id in the ObjCProtocolExpr AST node. rdar://11190837 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156890 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15Fold the six functions checking explicitly-defaulted special member functionsRichard Smith
into one. These were all performing almost identical checks, with different bugs in each of them. This fixes PR12806 (we weren't setting the exception specification for an explicitly-defaulted, non-user-provided default constructor) and enforces 8.4.2/2's rule that an in-class defaulted member must exactly match the implicit parameter type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156802 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-13Refactor all theRafael Espindola
if (Inherited) Attr->setInherited(true); To a central location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156728 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-13Produce a warning for mismatched section attributes. Completest pr9356.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156727 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-11Fix a recent regression with the merging of format attributes.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156597 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-10Fix an old (2009) FIXME:Rafael Espindola
// FIXME: This needs to happen before we merge declarations. Then, // let attribute merging cope with attribute conflicts. This was already being done for variables, but for functions we were merging then first and then applying the attributes. To avoid duplicating merging logic, some of the helpers in SemaDeclAttr.cpp become methods that can handle merging two attributes in one decl or inheriting attributes from one decl to another. With this change we are now able to produce errors for variables with incompatible visibility attributes or warn about unused dllimports in variables. This changes the attribute list iteration back to being in reverse source code order, as that matches what decl merging does and avoids differentiating the two cases is the merge*Attr methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156531 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-09[AST/libclang] Speed up clang_getOverriddenCursors() considerably by ↵Argyrios Kyrtzidis
reserving a bit in ObjCMethodDecl to indicate whether the method does not override any other method, which is the majority of cases. That way we can avoid unnecessary work doing lookups, especially when PCH is involved. rdar://11360082 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156476 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-07Change how we suppress access control in explicit instantiationsJohn McCall
so that we actually accumulate all the delayed diagnostics. Do this so that we can restore those diagnostics to good standing if it turns out that we were wrong to suppress, e.g. if the tag specifier is actually an elaborated type specifier and not a declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156291 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-07There is no reason for these methods to be out-of-line.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156290 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-07Refactor DelayedDiagnostics so that it keeps diagnostics inJohn McCall
separate pools owned by the RAII objects that keep pushing decl state. This gives us quite a bit more flexibility. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156289 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Move Sema::VerifyIntegerConstantExpression() andDouglas Gregor
Sema::ConvertToIntegralOrEnumerationType() from PartialDiagnostics to abstract "diagnoser" classes. Not much of a win here, but we're -several PartialDiagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156217 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Move Sema::RequireNonAbstractType() off of PartialDiagnostic.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Switch RequireLiteralType() off of PartialDiagnostic.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Move Sema::RequireCompleteType() and Sema::RequireCompleteExprType()Douglas Gregor
off PartialDiagnostic. PartialDiagnostic is rather heavyweight for something that is in the critical path and is rarely used. So, switch over to an abstract-class-based callback mechanism that delays most of the work until a diagnostic is actually produced. Good for ~11k code size reduction in the compiler and 1% speedup in -fsyntax-only on the code in <rdar://problem/11004361>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156176 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-02Revert most of r154844, which was disabled in r155975. Keep around theRichard Smith
refactorings in that revision, and some of the subsequent bugfixes, which seem to be relevant even without delayed exception specification parsing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Eliminate Sema::CompareMethodParamsInBaseAndSuper() entirely, byDouglas Gregor
folding its one check into the normal path for checking overridden Objective-C methods. Good for another 3.6% speedup on the test case in <rdar://problem/11004361>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155961 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01The semantic checking that verifies whether an Objective-C methodDouglas Gregor
declared in a subclass has consistent parameter types with a method having the same selector in a superclass performs a significant number of lookups into the class hierarchy. In the example in <rdar://problem/11004361>, we spend 4.7% of -fsyntax-only time in these lookups. Optimize away most of the calls to this routine (Sema::CompareMethodParamsInBaseAndSuper) by first checking whether we have ever seen *any* method with that selector (using the global selector table). Since most selectors are unique, we can avoid the cost of this name lookup in many cases, for a 3.3% speedup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155958 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Add FixItHint for -Wnull-conversion to initialize with an appropriate literal.David Blaikie
Reviewed by Doug Gregor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155839 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-25Add an error message with fixit hint for changing '.' to '->'.Kaelyn Uhrain
This is mainly for attempting to recover in cases where a class provides a custom operator-> and a '.' was accidentally used instead of '->' when accessing a member of the object returned by the current object's operator->. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155580 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-21Fix regression in r154844. If necessary, defer computing adjusted destructorRichard Smith
exception specifications in C++11 until after we've parsed the exception specifications for nested classes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155293 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Update doxygen comment to match changes in r155218.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155232 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Fix bug where a class's (deleted) copy constructor would be implicitly given aRichard Smith
non-const reference parameter type if the class had any subobjects with deleted copy constructors. This causes a rejects-valid if the class's copy constructor is explicitly defaulted (as happens for some implementations of std::pair etc). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155218 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19objective-arc: Retune my previous patch so warningFariborz Jahanian
is issued on weak property as receiver and not on any other use of a weak property. // rdar://10225276 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155169 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19objective-c arc: Issue warning under -Wreceiver-is-weak Fariborz Jahanian
if receiver is a 'weak' property, by type or by attribute. // rdar://10225276 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Implements boxed expressions for Objective-C. <rdar://problem/10194391>Patrick Beard
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155082 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-18VerifyICE: Pass PartialDiagnostics by reference.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155005 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-17Implement DR1330 in C++11 mode, to support libstdc++4.7 which uses it.Richard Smith
We have a new flavor of exception specification, EST_Uninstantiated. A function type with this exception specification carries a pointer to a FunctionDecl, and the exception specification for that FunctionDecl is instantiated (if needed) and used in the place of the function type's exception specification. When a function template declaration with a non-trivial exception specification is instantiated, the specialization's exception specification is set to this new 'uninstantiated' kind rather than being instantiated immediately. Expr::CanThrow has migrated onto Sema, so it can instantiate exception specs on-demand. Also, any odr-use of a function triggers the instantiation of its exception specification (the exception specification could be needed by IRGen). In passing, fix two places where a DeclRefExpr was created but the corresponding function was not actually marked odr-used. We used to get away with this, but don't any more. Also fix a bug where instantiating an exception specification which refers to function parameters resulted in a crash. We still have the same bug in default arguments, which I'll be looking into next. This, plus a tiny patch to fix libstdc++'s common_type, is enough for clang to parse (and, in very limited testing, support) all of libstdc++4.7's standard headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154886 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Implement the last part of C++ [class.mem]p2, delaying the parsing ofDouglas Gregor
exception specifications on member functions until after the closing '}' for the containing class. This allows, for example, a member function to throw an instance of its own class. Fixes PR12564 and a fairly embarassing oversight in our C++98/03 support. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154844 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Implement C++11 [expr.prim.general]p3, which permits the use of 'this'Douglas Gregor
in the declaration of a non-static member function after the (optional) cv-qualifier-seq, which in practice means in the exception specification and late-specified return type. The new scheme here used to manage 'this' outside of a member function scope is more general than the Scope-based mechanism previously used for non-static data member initializers and late-parsesd attributes, because it can also handle the cv-qualifiers on the member function. Note, however, that a separate pass is required for static member functions to determine whether 'this' was used, because we might not know that we have a static function until after declaration matching. Finally, this introduces name mangling for 'this' and for the implicit 'this', which is intended to match GCC's mangling. Independent verification for the new mangling test case would be appreciated. Fixes PR10036 and PR12450. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154799 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-14Add an AttributedStmt type to represent a statement with C++11 attributesRichard Smith
attached. Since we do not support any attributes which appertain to a statement (yet), testing of this is necessarily quite minimal. Patch by Alexander Kornienko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10[code-complete] Introduce CodeCompletionTUInfo which will be used for cachingArgyrios Kyrtzidis
code-completion related strings specific to a translation unit (ASTContext and related data) CodeCompletionAllocator does such limited caching, by caching the name assigned to a DeclContext*, but that is not the appropriate place since that object has a lifetime that can extend beyond that of an ASTContext. Introduce CodeCompletionTUInfo which will be always tied to a translation unit to do this kind of caching and move the caching of CodeCompletionAllocator into this object, and propagate it to all the places where it will be needed. The plan is to extend the caching where appropriate, using CodeCompletionTUInfo, to avoid re-calculating code-completion strings. Part of rdar://10796159. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Rework implementation of null non-type template arguments based onDouglas Gregor
Richard's feedback, to properly catch non-constant expressions and type mismatches. Finishes <rdar://problem/11193097>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154407 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-09Fix the access check performed as part of the determination of whetherJohn McCall
to define a special member function as deleted so that it properly establishes an object context for the accesses to the base subobject members. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154343 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-07Fix several problems with protected access control:John McCall
- The [class.protected] restriction is non-trivial for any instance member, even if the access lacks an object (for example, if it's a pointer-to-member constant). In this case, it is equivalent to requiring the naming class to equal the context class. - The [class.protected] restriction applies to accesses to constructors and destructors. A protected constructor or destructor can only be used to create or destroy a base subobject, as a direct result. - Several places were dropping or misapplying object information. The standard could really be much clearer about what the object type is supposed to be in some of these accesses. Usually it's easy enough to find a reasonable answer, but still, the standard makes a very confident statement about accesses to instance members only being possible in either pointer-to-member literals or member access expressions, which just completely ignores concepts like constructor and destructor calls, using declarations, unevaluated field references, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-06Fixed scoping error for late parsed attributes in nested classes.DeLesley Hutchins
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154173 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Move the computation of the lambda mangling information (manglingDouglas Gregor
number + context) to the point where we initially start defining the lambda, so that the linkage won't change when that information is made available. Fixes the assertion in <rdar://problem/11182962>. Plus, actually mangle the context of lambdas properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154029 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Enter an expression evaluation context when parsingJohn McCall
statement-expressions. Prevents cleanups and such from being claimed by the first full-expression in the block. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153989 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-02Basic semantic analysis support for inheriting constructor declarations inRichard Smith
dependent contexts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153858 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30PR10217: Provide diagnostics explaining why an implicitly-deleted specialRichard Smith
member function is deleted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153773 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28Unify and fix our checking of C++ [dcl.meaning]p1's requirementsDouglas Gregor
concerning qualified declarator-ids. We now diagnose extraneous qualification at namespace scope (which we had previously missed) and diagnose these qualification errors for all kinds of declarations; it was rather uneven before. Fixes <rdar://problem/11135644>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23Support for definitions of member enumerations of class templates outside theRichard Smith
class template's definition, and for explicit specializations of such enum members. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153304 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-17Diagnose tag and class template declarations with qualifiedDouglas Gregor
declarator-ids that occur at class scope. Fixes PR8019. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153002 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-14Instantiating a class template should not instantiate the definition of anyRichard Smith
scoped enumeration members. Later uses of an enumeration temploid as a nested name specifier should cause its instantiation. Plus some groundwork for explicit specialization of member enumerations of class templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152750 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-14[Sema] Fix SemaDiagnosticBuilder to be inline.Daniel Dunbar
- As with DiagnosticBuilder, it is very important that SemaDiagnosticBuilder be completely inline to ensure that the compiler can rip it apart and sink it to registers. This is good for another 30k reduction in code size. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152708 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-13[Basic] Eliminate DiagnosticBuilder::Suppress and matching ctor, this stuff isDaniel Dunbar
not used anymore (good thing we are still paying for it!). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152642 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-13Ensure that default arguments are handled correctly in sub scopes. For example:James Molloy
void f () { int g (int a, int b=4); { int g(int a, int b=5); } } should compile. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152621 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10When determining whether an identifier followed by a '<' in a memberDouglas Gregor
access expression is the start of a template-id, ignore function templates found in the context of the entire postfix-expression. Fixes PR11856. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152520 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr toJohn McCall
track whether the referenced declaration comes from an enclosing local context. I'm amenable to suggestions about the exact meaning of this bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152491 91177308-0d34-0410-b5e6-96231b3b80d8
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