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path: root/lib/Sema/SemaTemplateInstantiateDecl.cpp
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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
2009-08-28Remove #if 0'd code that is clearly not neededDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80399 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28Don't crash when instantiating templates containing anonymous structs/unionsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80397 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28Fix and test template instantiation for nested member templates.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80394 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
2009-08-28Instantiate unresolved using declarations.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80366 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
2009-08-27Fix for PR4794 (instantiating friend class decl); this version shouldn't Eli Friedman
cause any regressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80277 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27PR4794: Make instantiating friend class decls not crash.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Implement instantiation of the declarations of member functionDouglas Gregor
templates within class templates, producing a member function template of a class template specialization. If you can parse that, I'm sorry. Example: template<typename T> struct X { template<typename U> void f(T, U); }; When we instantiate X<int>, we now instantiate the declaration X<int>::f, which looks like this: template<typename U> void X<int>::f(int, U); The path this takes through TemplateDeclInstantiator::VisitCXXMethodDecl is convoluted and ugly, but I don't know how to improve it yet. I'm resting my hopes on the multi-level substitution required to instantiate definitions of nested templates, which may simplify this code as well. More testing to come... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Make sure to bump the reference count of the last element in the ↵Douglas Gregor
ParenListExpr representing the direct initializer of a declaration git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80177 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Implement support for C++ direct initializers that involve dependentDouglas Gregor
types or type-dependent expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80143 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
2009-08-25Basic support for default argument expressions for function templates.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79972 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Implement conversion function templates, along with the ability to useDouglas Gregor
template argument deduction from a conversion function (C++ [temp.deduct.conv]) with implicit conversions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Refactor instantiation of destructors to use the common CXXMethodDeclDouglas Gregor
code, fixing a problem where instantiations of out-of-line destructor definitions would had the wrong lexical context. Introduce tests for out-of-line definitions of the constructors, destructors, and conversion functions of a class template partial specialization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Introduce support for constructor templates, which can now be declaredDouglas Gregor
and will participate in overload resolution. Unify the instantiation of CXXMethodDecls and CXXConstructorDecls, which had already gotten out-of-sync. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79658 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Remove TypeSpecStartLocation from VarDecl/FunctionDecl/FieldDecl, and use ↵Argyrios Kyrtzidis
DeclaratorInfo to get this information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79584 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Implement support for calling member function templates, which involves:Douglas Gregor
- Allowing one to name a member function template within a class template and on the right-hand side of a member access expression. - Template argument deduction for calls to member function templates. - Registering specializations of member function templates (and finding them later). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79581 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
2009-08-19Introduce DeclaratorDecl and pass DeclaratorInfo through the Decl/Sema ↵Argyrios Kyrtzidis
interfaces. DeclaratorDecl contains a DeclaratorInfo* to keep type source info. Subclasses of DeclaratorDecl are FieldDecl, FunctionDecl, and VarDecl. EnumConstantDecl still inherits from ValueDecl since it has no need for DeclaratorInfo. Decl/Sema interfaces accept a DeclaratorInfo as parameter but no DeclaratorInfo is created yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79392 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15Implement __is_empty. Patch by Sean Hunt.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79143 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-14Support friend declarations in templates and test that argdep lookupJohn McCall
still works. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78979 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08Patch should implement packed enums - PR4098. Credit to Anders Johnsen.Edward O'Callaghan
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78471 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08Introduce reference counting for statements and expressions, using itDouglas Gregor
to allow sharing of nodes. Simplifies some aspects of template instantiation, and fixes both PR3444 and <rdar://problem/6757457>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78450 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05Introduce the canonical type smart pointers, and use them in a few places toDouglas Gregor
tighten up the static type system. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04Canonicalize else.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78102 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Use the new statement/expression profiling code to unique dependentDouglas Gregor
template arguments, as in template specialization types. This permits matching out-of-line definitions of members for class templates that involve non-type template parameters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77462 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27When instantiating a variable without an initializer, callDouglas Gregor
ActOnUninitializedDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77211 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24Template instantiation for static data members that are defined out-of-line.Douglas Gregor
Note that this also fixes a bug that affects non-template code, where we were not treating out-of-line static data members are "file-scope" variables, and therefore not checking their initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77002 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Add the location of the tag keyword into TagDecl. From EneaDouglas Gregor
Zaffanella, with tweaks from Abramo Bagnara. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76576 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
2009-07-16Fix unused variable warnings (with -Asserts)Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76112 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14Add a "TypeSpecStartLoc" to FieldDecl. Patch contributed by Enea Zaffanella.Steve Naroff
Note: One day, it might be useful to consider adding this info to DeclGroup (as the comments in FunctionDecl/VarDecl suggest). For now, I think this works fine. I considered moving this to ValueDecl (a common ancestor of FunctionDecl/VarDecl/FieldDecl), however this would add overhead to EnumConstantDecl (which would burn memory and isn't necessary). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01Keep track of more information within the template instantiation stack, e.g.,Douglas Gregor
by distinguishing between substitution that occurs for template argument deduction vs. explicitly-specifiad template arguments. This is used both to improve diagnostics and to make sure we only provide SFINAE in those cases where SFINAE should apply. In addition, deal with the sticky issue where SFINAE only considers substitution of template arguments into the *type* of a function template; we need to issue hard errors beyond this point, as test/SemaTemplate/operator-template.cpp illustrates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74651 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30When recursively instantiating function templates, keep track of theDouglas Gregor
instantiation stack so that we provide a full instantiation backtrace. Previously, we performed all of the instantiations implied by the recursion, but each looked like a "top-level" instantiation. The included test case tests the previous fix for the instantiation of DeclRefExprs. Note that the "instantiated from" diagnostics still don't tell us which template arguments we're instantiating with. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74540 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30Refactor ActOnDeclarationNameExpr into a "parsing action" part and aDouglas Gregor
"semantic analysis" part. Use the "semantic analysis" part when performing template instantiation on a DeclRefExpr, rather than an ad hoc list of rules to construct DeclRefExprs from the instantiation. A test case for this change will come in with a large commit, which illustrates what I was actually trying to work on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74528 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 getBody() methods of Decl and ↵Argyrios Kyrtzidis
subclasses. Timings showed no significant difference before and after the commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74504 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29Keep track of function template specializations, to eliminateDouglas Gregor
redundant, implicit instantiations of function templates and provide a place where we can hang function template specializations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26Implicit instantiation for function template specializations.Douglas Gregor
For a FunctionDecl that has been instantiated due to template argument deduction, we now store the primary template from which it was instantiated and the deduced template arguments. From this information, we can instantiate the body of the function template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74232 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
2009-06-22Implement implicit instantiation of the member functions of a class templateDouglas Gregor
specialization. At present, all implicit instantiations occur at the end of the translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22Rework the way we track which declarations are "used" duringDouglas Gregor
compilation, and (hopefully) introduce RAII objects for changing the "potentially evaluated" state at all of the necessary places within Sema and Parser. Other changes: - Set the unevaluated/potentially-evaluated context appropriately during template instantiation. - We now recognize three different states while parsing or instantiating expressions: unevaluated, potentially evaluated, and potentially potentially evaluated (for C++'s typeid). - When we're in a potentially potentially-evaluated context, queue up MarkDeclarationReferenced calls in a stack. For C++ typeid expressions that are potentially evaluated, we will play back these MarkDeclarationReferenced calls when we exit the corresponding potentially potentially-evaluated context. - Non-type template arguments are now parsed as constant expressions, so they are not potentially-evaluated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73899 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29Reduce the amount of stack space we use in SmallVectors duringDouglas Gregor
template instantiation. This helps reduce our stack footprint when performing deep template instantiations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72582 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29Now that we have declared/defined tag types within DeclGroups,Douglas Gregor
instantiation of tags local to member functions of class templates (and, eventually, function templates) works when the tag is defined as part of the decl-specifier-seq, e.g., struct S { T x, y; } s1; Also, make sure that we don't try to default-initialize a dependent type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72568 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Introduced DeclContext::isDependentContext, which determines whether aDouglas Gregor
given DeclContext is dependent on type parameters. Use this to properly determine whether a TagDecl is dependent; previously, we were missing the case where the TagDecl is a local class of a member function of a class template (phew!). Also, make sure that, when we instantiate declarations within a member function of a class template (or a function template, eventually), that we add those declarations to the "instantiated locals" map so that they can be found when instantiating declaration references. Unfortunately, I was not able to write a useful test for this change, although the assert() that fires when uncommenting the FIXME'd line in test/SemaTemplate/instantiate-declref.cpp tells the "experienced user" that we're now doing the right thing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72526 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Simplify, and improve the performance of, template instantiation forDouglas Gregor
declaration references. The key realization is that dependent Decls, which actually require instantiation, can only refer to the current instantiation or members thereof. And, since the current context during instantiation contains all of those members of the current instantiation, we can simply find the real instantiate that matches up with the "current instantiation" template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72486 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Enumeration declarations that were instantiated from an enumerationDouglas Gregor
within a template now have a link back to the enumeration from which they were instantiated. This means that we can now find the instantiation of an anonymous enumeration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Improve name lookup for and template instantiation of declarationDouglas Gregor
references. There are several smallish fixes here: - Make sure we look through template parameter scope when determining whether we're parsing a nested class (or nested class *template*). This makes sure that we delay parsing the bodies of inline member functions until after we're out of the outermost class (template) scope. - Since the bodies of member functions are always parsed "out-of-line", even when they were declared in-line, teach unqualified name lookup to look into the (semantic) parents. - Use the new InstantiateDeclRef to handle the instantiation of a reference to a declaration (in DeclRefExpr), which drastically simplifies template instantiation for DeclRefExprs. - When we're instantiating a ParmVarDecl, it must be in the current instantiation scope, so only look there. Also, remove the #if 0's and FIXME's from the dynarray example, which now compiles and executes thanks to Anders and Eli. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72481 91177308-0d34-0410-b5e6-96231b3b80d8
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