aboutsummaryrefslogtreecommitdiff
path: root/lib/Sema/SemaLookup.cpp
AgeCommit message (Collapse)Author
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
2009-11-17Temporarily unbreak the clang-on-llvm tests. :) Not going to fix unresolvedJohn McCall
lookup all in a night. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Store "sugared" decls in LookupResults (i.e. decl aliases like using ↵John McCall
declarations); strip the sugar off in getFoundDecl() and getAsSingleDecl(), but leave it on for clients like overload resolution who want to use the iterators. Refactor a few pieces of overload resolution to strip off using declarations in a single place. Don't do anything useful with the extra context knowledge yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89061 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
2009-11-17Carry 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
2009-11-11Introduce a new representation for template templateDouglas Gregor
parameters. Rather than storing them as either declarations (for the non-dependent case) or expressions (for the dependent case), we now (always) store them as TemplateNames. The primary change here is to add a new kind of TemplateArgument, which stores a TemplateName. However, making that change ripples to every switch on a TemplateArgument's kind, also affecting TemplateArgumentLocInfo/TemplateArgumentLoc, default template arguments for template template parameters, type-checking of template template arguments, etc. This change is light on testing. It should fix several pre-existing problems with template template parameters, such as: - the inability to use dependent template names as template template arguments - template template parameter default arguments cannot be instantiation However, there are enough pieces missing that more implementation is required before we can adequately test template template parameters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86777 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Create a new Scope when parsing a declaration with a C++ scope specifier.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86764 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Fix a similar problem with qualified lookup through using directives,John McCall
although in this case we probably just run a risk of duplicating work; I can't think of how this could cause a bug. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Make a somewhat more convincing test case for unqualified lookup throughJohn McCall
using directives, and fix a bug thereby exposed: since we're playing tricks with pointers, we need to make certain we're always using the same pointers for things. Also tweak an existing error message. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86679 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Fix unqualified lookup through using directives.John McCall
This is a pretty minimal test case; I'll make a better one later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86669 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Ignore dependent bases in ADL. Fixes PR5271.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85054 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Apply the special enum restrictions from [over.match.oper]p3b2 in ↵Sebastian Redl
argument-dependent lookup too. This fixes PR5244. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10Qualified lookup through using declarations. Diagnose a new type of ambiguity.John McCall
Split the various ambiguous result enumerators into their own enum. Tests for most of C++ [namespace.qual]. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09Dead Code EliminationDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83686 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
2009-10-07Dead code elimination.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83492 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
2009-09-21Change all the Type::getAsFoo() methods to specializations of Type::getAs().John McCall
Several of the existing methods were identical to their respective specializations, and so have been removed entirely. Several more 'leaf' optimizations were introduced. The getAsFoo() methods which imposed extra conditions, like getAsObjCInterfacePointerType(), have been left in place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11When performing name lookup within a class template or class templateDouglas Gregor
partial specialization, make sure we look into non-dependent base classes (but not dependent base classes). Fixes PR4951. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81584 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10When performing unqualified name lookup into a DeclContext, also look intoDouglas Gregor
all of the parent DeclContexts that aren't represented within the Scope chain. This fixes some name-lookup problems in out-of-line definitions of members of nested classes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81451 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Remove tabs, and whitespace cleanups.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02Rewrite of our handling of name lookup in C++ member access expressions, e.g.,Douglas Gregor
x->Base::f We no longer try to "enter" the context of the type that "x" points to. Instead, we drag that object type through the parser and pass it into the Sema routines that need to know how to perform lookup within member access expressions. We now implement most of the crazy name lookup rules in C++ [basic.lookup.classref] for non-templated code, including performing lookup both in the context of the type referred to by the member access and in the scope of the member access itself and then detecting ambiguities when the two lookups collide (p1 and p4; p3 and p7 are still TODO). This change also corrects our handling of name lookup within template arguments of template-ids inside the nested-name-specifier (p6; we used to look into the scope of the object expression for them) and fixes PR4703. I have disabled some tests that involve member access expressions where the object expression has dependent type, because we don't yet have the ability to describe dependent nested-name-specifiers starting with an identifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80843 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28Omnibus friend decl refactoring. Instead of cloning AST classes for friendJohn McCall
declarations of same, introduce a single AST class and add appropriate bits (encoded in the namespace) for whether a decl is "real" or not. Much hackery about previously-declared / not-previously-declared, but it's essentially mandated by the standard that friends alter lookup, and this is at least fairly non-intrusive. Refactor the Sema methods specific to friends for cleaner flow and less nesting. Incidentally solve a few bugs, but I remain confident that we can put them back. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80353 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Improve support for out-of-line definitions of nested templates andDouglas Gregor
their members, including member class template, member function templates, and member classes and functions of member templates. To actually parse the nested-name-specifiers that qualify the name of an out-of-line definition of a member template, e.g., template<typename X> template<typename Y> X Outer<X>::Inner1<Y>::foo(Y) { return X(); } we need to look for the template names (e.g., "Inner1") as a member of the current instantiation (Outer<X>), even before we have entered the scope of the current instantiation. Since we can't do this in general (i.e., we should not be looking into all dependent nested-name-specifiers as if they were the current instantiation), we rely on the parser to tell us when it is parsing a declaration specifier sequence, and, therefore, when we should consider the current scope specifier to be a current instantiation. Printing of complicated, dependent nested-name-specifiers may be somewhat broken by this commit; I'll add tests for this issue and fix the problem (if it still exists) in a subsequent commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80044 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24Skip transparent contexts when performing C++ name lookupDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79931 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Argument-dependent lookup for friend declarations. Add a new decl type,John McCall
FriendFunctionDecl, and create instances as appropriate. The design of FriendFunctionDecl is still somewhat up in the air; you can befriend arbitrary types of functions --- methods, constructors, etc. --- and it's not clear that this representation captures that very well. We'll have a better picture when we start consuming this data in access control. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78653 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07Just add global scope to the associated namespaces set instead of tracking itJohn McCall
separately. Add the framework (currently unfed) for finding friend declarations during argument-dependent lookup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78414 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06First pass at friend semantics.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05Get rid of "smart" quotes. Per report on cfe-dev.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78230 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Change uses of:Ted Kremenek
Type::getAsReferenceType() -> Type::getAs<ReferenceType>() Type::getAsRecordType() -> Type::getAs<RecordType>() Type::getAsPointerType() -> Type::getAs<PointerType>() Type::getAsBlockPointerType() -> Type::getAs<BlockPointerType>() Type::getAsLValueReferenceType() -> Type::getAs<LValueReferenceType>() Type::getAsRValueReferenceType() -> Type::getAs<RValueReferenceType>() Type::getAsMemberPointerType() -> Type::getAs<MemberPointerType>() Type::getAsReferenceType() -> Type::getAs<ReferenceType>() Type::getAsTagType() -> Type::getAs<TagType>() And remove Type::getAsReferenceType(), etc. This change is similar to one I made a couple weeks ago, but that was partly reverted pending some additional design discussion. With Doug's pending smart pointer changes for Types, it seemed natural to take this approach. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29[llvm up]Douglas Gregor
A template name can refer to a set of overloaded function templates. Model this in TemplateName, which can now refer to an OverloadedFunctionDecl that contains function templates. This removes an unspeakable hack in Sema::isTemplateName. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Remove Sema::LookupObjCImplementation and replace it with just calling ↵Argyrios Kyrtzidis
ObjCInterfaceDecl::getImplementation(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18Remove ASTContext::getCanonicalDecl() and use Decl::getCanonicalDecl in its ↵Argyrios Kyrtzidis
place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Per offline discussion with Steve Naroff, add back Type::getAsXXXType() methodsTed Kremenek
until Doug Gregor's Type smart pointer code lands (or more discussion occurs). These methods just call the new Type::getAs<XXX> methods, so we still have reduced implementation redundancy. Having explicit getAsXXXType() methods makes it easier to set breakpoints in the debugger. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Replaced Type::getAsLValueReferenceType(), Type::getAsRValueReferenceType(), ↵Ted Kremenek
Type::getAsMemberPointerType(), Type::getAsTagType(), and Type::getAsRecordType() with their Type::getAs<XXX> equivalents. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76139 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Add member template 'Type::getAs<T>', which converts a Type* to a respective T*.Ted Kremenek
This method is intended to eventually replace the individual Type::getAsXXXType<> methods. The motivation behind this change is twofold: 1) Reduce redundant implementations of Type::getAsXXXType() methods. Most of them are basically copy-and-paste. 2) By centralizing the implementation of the getAs<Type> logic we can more smoothly move over to Doug Gregor's proposed canonical type smart pointer scheme. Along with this patch: a) Removed 'Type::getAsPointerType()'; now clients use getAs<PointerType>. b) Removed 'Type::getAsBlockPointerTypE()'; now clients use getAs<BlockPointerType>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Fix a corner case with argument-dependent lookup and overloaded function sets.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Improve argument-dependent lookup to find associated classes andDouglas Gregor
namespaces based on the template arguments of a class template specialization type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74993 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30De-ASTContext-ify DeclContext.Argyrios Kyrtzidis
Remove ASTContext parameter from DeclContext's methods. This change cascaded down to other Decl's methods and changes to call sites started "escalating". Timings using pre-tokenized "cocoa.h" showed only a ~1% increase in time run between and after this commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74506 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30Remove the ASTContext parameter from the attribute-related methods of Decl.Argyrios Kyrtzidis
The implementations of these methods can Use Decl::getASTContext() to get the ASTContext. This commit touches a lot of files since call sites for these methods are everywhere. I used pre-tokenized "carbon.h" and "cocoa.h" headers to do some timings, and there was no real time difference between before the commit and after it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27Improve support for overloaded operator templates.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74390 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26Add NamedDecl::getUnderlyingDecl that can see through UsingDecl and ↵Anders Carlsson
ObjCCompatibleAliasDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26See through UsingDecls in more places.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74269 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26Fix failing test.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74268 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26Fix another assert related to using decls.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26When creating LookupResults, see through UsingDecls. Fixes PR4450.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-25Improved semantic analysis and AST respresentation for functionDouglas Gregor
templates. For example, this now type-checks (but does not instantiate the body of deref<int>): template<typename T> T& deref(T* t) { return *t; } void test(int *ip) { int &ir = deref(ip); } Specific changes/additions: * Template argument deduction from a call to a function template. * Instantiation of a function template specializations (just the declarations) from the template arguments deduced from a call. * FunctionTemplateDecls are stored directly in declaration contexts and found via name lookup (all forms), rather than finding the FunctionDecl and then realizing it is a template. This is responsible for most of the churn, since some of the core declaration matching and lookup code assumes that all functions are FunctionDecls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-23Make sure that argument-dependent lookup looks into the global scopeDouglas Gregor
when it should. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73992 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20Parsing and AST support for using declarations, from John Thompson!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73812 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-05 03:20:32 +0000