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path: root/lib/Sema/SemaTemplateInstantiate.cpp
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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
2009-11-12When instantiating a reference to a non-type template parameter of pointer toDouglas Gregor
member type (e.g., T Class::*Member), build a pointer-to-member constant expression. Previously, we we just building a simple declaration reference expression, which meant that the expression was not treated as a pointer to member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@87000 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Improve diagnostics when a default template argument does not matchDouglas Gregor
with its corresponding template parameter. This can happen when we performed some substitution into the default template argument and what we had doesn't match any more, e.g., template<int> struct A; template<typename T, template<T> class X = A> class B; B<long> b; Previously, we'd emit a pretty but disembodied diagnostic showing how the default argument didn't match the template parameter. The diagnostic was good, but nothing tied it to the *use* of the default argument in "B<long>". This commit fixes that. Also, tweak the counting of active template instantiations to avoid counting non-instantiation records, such as those we create for (surprise!) checking default arguments, instantiating default arguments, and performing substitutions as part of template argument deduction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86884 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Before checking a template template argument against its correspondingDouglas Gregor
template template parameter, substitute any prior template arguments into the template template parameter. This, for example, allows us to properly check the template template argument for a class such as: template<typename T, template<T Value> class X> struct Foo; The actual implementation of this feature was trivial; most of the change is dedicated to giving decent diagnostics when this substitution goes horribly wrong. We now get a note like: note: while substituting prior template arguments into template template parameter 'X' [with T = float] As part of this change, enabled some very pedantic checking when comparing template template parameter lists, which shook out a bug in our overly-eager checking of default arguments of template template parameters. We now perform only minimal checking of such default arguments when they are initially parsed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86864 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
2009-11-09Improve instantiation of default template arguments for nestedDouglas Gregor
templates. The instantiation of these default arguments must be (and now, is) delayed until the template argument is actually used, at which point we substitute all levels of template arguments concurrently. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86578 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Special-case default argument expression in instantiation. This should fix ↵Sebastian Redl
PR4301. Doug, please double-check my assumptions. Read the PR for more details. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04When performing template instantiation (transformation) ofDouglas Gregor
expressions, keep track of whether we are immediately taking the address of the expression. Pass this flag when building a declaration name expression so that we handle pointer-to-member constants properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86017 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31Implement "incremental" template instantiation for non-type templateDouglas Gregor
parameters and template type parameters, which occurs when substituting into the declarations of member templates inside class templates. This eliminates errors about our inability to "reduce non-type template parameter depth", fixing PR5311. Also fixes a bug when instantiating a template type parameter declaration in a member template, where we weren't properly reducing the template parameter's depth. LLVM's StringSwitch header now parses. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85669 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
2009-10-29Implement support for semantic checking and template instantiation ofDouglas Gregor
class template partial specializations of member templates. Also, fixes a silly little bug in the marking of "used" template parameters in member templates. Fixes PR5236. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85447 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27An explicit instantiation definition only instantiations those classDouglas Gregor
members that have a definition. Also, use CheckSpecializationInstantiationRedecl as part of this instantiation to make sure that we diagnose the various kinds of problems that can occur with explicit instantiations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85270 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27Only set the point of instantiation for an implicit or explicitDouglas Gregor
instantiation once we have committed to performing the instantiation. As part of this, make our makeshift template-instantiation location information suck slightly less. Fixes PR5264. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85209 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23Eliminate QualifiedDeclRefExpr, which captured the notion of aDouglas Gregor
qualified reference to a declaration that is not a non-static data member or non-static member function, e.g., namespace N { int i; } int j = N::i; Instead, extend DeclRefExpr to optionally store the qualifier. Most clients won't see or care about the difference (since QualifierDeclRefExpr inherited DeclRefExpr). However, this reduces the number of top-level expression types that clients need to cope with, brings the implementation of DeclRefExpr into line with MemberExpr, and simplifies and unifies our handling of declaration references. Extended DeclRefExpr to (optionally) store explicitly-specified template arguments. This occurs when naming a declaration via a template-id (which will be stored in a TemplateIdRefExpr) that, following template argument deduction and (possibly) overload resolution, is replaced with a DeclRefExpr that refers to a template specialization but maintains the template arguments as written. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-21Clone Sema::SubstType for DeclaratorInfos.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-21Rewrite TreeTransform to transform types as DeclaratorInfos rather than as bareJohn McCall
QualTypes. Don't actually exploit this yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-20Handle substitutions into the "first qualifier in scope" of aDouglas Gregor
qualified member access expression (e.g., t->U::member) when that first qualifier refers to a template parameters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84612 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18When performing template-substitution into a type, don't just replace theJohn McCall
TemplateTypeParmType with the substituted type directly; instead, replace it with a SubstTemplateTypeParmType which will note that the type was originally written as a template type parameter. This makes it reasonable to preserve source information even through template substitution. Also define the new SubstTemplateTypeParmType class, obviously. For consistency with current behavior, we stringize these types as if they were the underlying type. I'm not sure this is the right thing to do. At any rate, I paled at adding yet another clause to the don't-desugar 'if' statement, so I extracted a function to do it. The new function also does The Right Thing more often, I think: e.g. if we have a chain of typedefs leading to a vector type, we will now desugar all but the last one. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84412 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-15Improve point-of-instantiation location information for members of class ↵Douglas Gregor
templates git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84217 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-15Check the interactions between explicit instantiations and templateDouglas Gregor
specializations. Work in progress; there's more cleanup required to actually use the new CheckSpecializationInstantiationRedecl checker uniformly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84185 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14Testing and some minor fixes for explicit template instantiation.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84129 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13When explicitly specializing a member that is a template, mark theDouglas Gregor
template as a specialization. For example, this occurs with: template<typename T> struct X { template<typename U> struct Inner { /* ... */ }; }; template<> template<typename T> struct X<int>::Inner { T member; }; We need to treat templates that are member specializations as special in two contexts: - When looking for a definition of a member template, we look through the instantiation chain until we hit the primary template *or a member specialization*. This allows us to distinguish between the primary "Inner" definition and the X<int>::Inner definition, above. - When computing all of the levels of template arguments needed to instantiate a member template, don't add template arguments from contexts outside of the instantiation of a member specialization, since the user has already manually substituted those arguments. Fix up the existing test for p18, which was actually wrong (but we didn't diagnose it because of our poor handling of member specializations of templates), and add a new test for member specializations of templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83974 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-08Improve checking for specializations of member classes of classDouglas Gregor
templates, and keep track of how those member classes were instantiated or specialized. Make sure that we don't try to instantiate an explicitly-specialized member class of a class template, when that explicit specialization was a declaration rather than a definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83547 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-08For instantiations of static data members of class templates, keepDouglas Gregor
track of the kind of specialization or instantiation. Also, check the scope of the specialization and ensure that a specialization declaration without an initializer is not a definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-08Make sure to set the template specialization kind of an explicitDouglas Gregor
template instantiation of a member function of a class template. FIXME -= 2; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83520 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07Keep track of whether a member function instantiated from a memberDouglas Gregor
function of a class template was implicitly instantiated, explicitly instantiated (declaration or definition), or explicitly specialized. The same MemberSpecializationInfo structure will be used for static data members and member classes as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-29Slightly improve the semantics of extern templates for member functions of ↵Douglas Gregor
class templates git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83063 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-24Refactor the representation of qualifiers to bring ExtQualType out of theJohn McCall
Type hierarchy. Demote 'volatile' to extended-qualifier status. Audit our use of qualifiers and fix a few places that weren't dealing with qualifiers quite right; many more remain. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16Teach Sema::FindInstantiatedDecl to find instantiated RecordDecls evenDouglas Gregor
when we are not instantiating the corresponding "current instantiation." This happens, e.g., when we are instantiating a declaration reference that refers into the "current instantiation" but occurs in a default function argument. The libstdc++ vector default constructor now instantiates properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82069 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15Slightly improved template argument deduction for use in partialDouglas Gregor
ordering, along with another test case for partial ordering of partial specializations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81869 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15Implement partial ordering of class template partial specializations Douglas Gregor
(C++ [temp.class.order]). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81866 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11Slight improvement for extern templates, so that an explicitDouglas Gregor
instantiation definition can follow an explicit instantiation declaration. This is as far as I want to go with extern templates now, but they will still need quite a bit more work to get all of the C++0x semantics right. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81573 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11Track a class template specialization's point of instantiation separatelyJohn McCall
from its location. Initialize appropriately. When implicitly creating a declaration of a class template specialization after encountering the first reference to it, use the pattern class's location instead of the location of the first reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81515 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11Support elaborated dependent types and diagnose tag mismatches.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81504 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11Instantiate PredefinedExprs correctly. Patch by Sam Weinig!Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81498 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
2009-09-05Report errors for member functions correctly.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81063 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-05Use a separate diagnostic for default function argument expressions.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81062 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Improve the AST representation and semantic analysis for externDouglas Gregor
templates. We now distinguish between an explicit instantiation declaration and an explicit instantiation definition, and know not to instantiate explicit instantiation declarations. Unfortunately, there is some remaining confusion w.r.t. instantiation of out-of-line member function definitions that causes trouble here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81053 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Improve template instantiation for member access expressions thatDouglas Gregor
involve qualified names, e.g., x->Base::f. We now maintain enough information in the AST to compare the results of the name lookup of "Base" in the scope of the postfix-expression (determined at template definition time) and in the type of the object expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80953 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Implement proper substitution for OverloadedFunctionDecls, but substituting ↵Douglas Gregor
each of the functions in the overload set git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29Improve instantiation of UnresolvedUsingDecls.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80434 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29Ensure code generation for friend declarations in class templates.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80418 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28Implement template instantiation for member class templates.Douglas Gregor
When performing template instantiation of the definitions of member templates (or members thereof), we build a data structure containing the template arguments from each "level" of template instantiation. During template instantiation, we substitute all levels of template arguments simultaneously. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80389 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28Collect multiple levels of template arguments into a new type,Douglas Gregor
MultiLevelTemplateArgumentList. This is a baby step toward instantiating member templates; no intended functionality change yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80380 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Clarify the difference between substitution and instantiation by renamingJohn McCall
functions that don't instantiate definitions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80037 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24Try to complete a type before looking for conversion functions withinDouglas Gregor
that type. Note that we do not produce a diagnostic if the type is incomplete; rather, we just don't look for conversion functions. Fixes PR4660. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79919 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Refactor the instantiation of statements into a generic treeDouglas Gregor
transformation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79519 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Basic nested-template implementation.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79504 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Refactor the template-instantiation logic for expressions into aDouglas Gregor
generic tree transformation (also used for recanonicalization) and a small amount of template-instantiation-specific logic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78645 91177308-0d34-0410-b5e6-96231b3b80d8
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