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path: root/lib/Sema/SemaExprCXX.cpp
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2009-11-17Require the object type of a member access expression ("." or "->") toDouglas Gregor
be complete. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89042 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
2009-11-16First 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
2009-11-16Repair broken FindCompositePointerType. Correct early termination condition. ↵Sebastian Redl
Get CVR qualifiers from canonical types. Traverse collected qualifiers in reverse order on rebuilding the pointer, so that we don't swap inner and outer qualifiers. That last one fixes PR5509. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88960 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-15Factor finding a deallocation function for a record type out into a separate ↵Anders Carlsson
function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88857 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-15If we find a deallocation function in the class scope, but it is a placement ↵Anders Carlsson
function we should not look for a deallocation function in the global scope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88851 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
2009-11-14Diagnose ambiguity of operator delete and operator delete[]. Sebastian, ↵Anders Carlsson
please review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Improve source-location information for implicitly-generated member call ↵Douglas Gregor
expressions git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86989 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Fix use-after-free bug.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06When we encounter a derived-to-base conversion when performing anDouglas Gregor
implicit conversion sequence, check the validity of this conversion and then perform it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86210 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Minor cleanup of my last patch.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86209 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
2009-11-05Implement the conditional-operator part of -Wsign-compare. TurnJohn McCall
DiagnoseSignCompare into Sema::CheckSignCompare and call it from more places. Add some enumerator tests. These seem to expose some oddities in the types we're converting C++ enumerators to; in particular, they're converting to unsigned before int, which seems to contradict 4.5 [conv.prom] p2. Note to self: stop baiting Doug in my commit messages. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86128 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04When starting a C++ member access expression, make sure to compute theDouglas Gregor
type of the object even when it is dependent. Specifically, this makes sure that we get the right type for "this->", which is important when performing name lookup into this scope to determine whether an identifier or operator-function-id is a template name. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86060 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Remove previous patch for pr5296 due to further clarificationFariborz Jahanian
of value-initialization and trivial constructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85935 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Replace the code that parses member access expressions after "." orDouglas Gregor
"->" with a use of ParseUnqualifiedId. Collapse ActOnMemberReferenceExpr, ActOnDestructorReferenceExpr (both of them), ActOnOverloadedOperatorReferenceExpr, ActOnConversionOperatorReferenceExpr, and ActOnMemberTemplateIdReferenceExpr into a single, new action ActOnMemberAccessExpr that does the same thing more cleanly (and can keep more source-location information). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85930 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Use ParseUnqualifiedId when parsing id-expressions. This eliminatesDouglas Gregor
yet another copy of the unqualified-id parsing code. Also, use UnqualifiedId to simplify the Action interface for building id-expressions. ActOnIdentifierExpr, ActOnCXXOperatorFunctionIdExpr, ActOnCXXConversionFunctionExpr, and ActOnTemplateIdExpr have all been removed in favor of the new ActOnIdExpression action. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85904 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01Within a template, qualified name lookup can refer to a non-dependent typeDouglas Gregor
that is not known to be a base class at template definition time due to some dependent base class. Treat qualified name lookup that refers to a non-static data member or function as implicit class member access when the "this" type would be dependent. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85718 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29Track source information for template arguments and template specializationJohn McCall
types. Preserve it through template instantiation. Preserve it through PCH, although TSTs themselves aren't serializable, so that's pretty much meaningless. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27Generate constructor for value-initialization cases, even if the Fariborz Jahanian
implementation technique doesn't call the constructor at that point. DR302. Fixes pr5296. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85249 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26Add 'fixit' hint on mis-use of pointer-to-memberFariborz Jahanian
binary operators. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85153 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
2009-10-24Fix overload resolution when calling a member template or taking theDouglas Gregor
address of a member template when explicit template arguments are provided. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Diagnose misuse of '.*' and '->*' operators during parseFariborz Jahanian
instead of crashing in code gen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84968 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Fixed a code gen bug (by fixing the AST) involving user-definedFariborz Jahanian
pointer-to-member type conversion follwed by a pointer-to-member standard conversion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84955 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
2009-10-20Remove 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
2009-10-18When building a cast argument, make sure to bind the result to a temporary.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84448 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17When type-checking a C++ "new" expression, don't type-check the actual Douglas Gregor
initialization if any of the constructor/initialization arguments are type-dependent. Fixes PR5224. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84365 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
2009-10-13The operator loc points to the operator, not the function decl.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84048 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Check the return type of binary operators and the arrow operator.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84043 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
2009-10-09Refactor 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
2009-10-06Refactor 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
2009-09-30Note location of operators caused the circularity.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83153 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30Spare the processors of those poor wretches who have no choice but to writeJohn McCall
unbounded chains of operator-> delegations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30Detect operator-> chains of arbitrary length. Use a terrible data structureJohn McCall
to strike fear into the hearts of CPUs everywhere. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83133 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30self-referecing operator '->' member function was causingFariborz Jahanian
infinit recursion. This patch fixes it. [13.3.1.2]-p2 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83124 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30Find operators new/delete in base classes. FIXME -= 2;Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83119 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-29The C++ delete expression strips cv-qualifiers from the pointed-to type. My ↵Douglas Gregor
previous fix eliminated this behavior, so bring it back again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83113 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-29Handle C++ delete expressions when the overloaded delete operator is aDouglas Gregor
"usual deallocation function" with two arguments. CodeGen will have to handle this case specifically, since the value for the second argument (the size of the allocated object) may have to be computed at run time. Fixes the Sema part of PR4782. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83080 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
2009-09-25Refixed pr5050 per Anders comment. Test case enhancedFariborz Jahanian
per Doug's comment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82791 91177308-0d34-0410-b5e6-96231b3b80d8
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