llvm-svn: 72627

llvm-svn: 72624

llvm-svn: 72616

  using namespace std::debug;

Extended UsingDirectiveDecl to store the nested-name-specifier that
precedes the nominated namespace.

llvm-svn: 72614

Add a member lookup criteria constructor for searching for overridden virtual member functions. Use this instead of regular name lookup when checking for overriding functions so we will see declarations that would otherwise be hidden. Fixes 6902298.

llvm-svn: 72601

walks through DeclContexts properly, and prints more of the
information available in the AST. The functionality is still available
via -ast-print, -ast-dump, etc., and also via the new member functions
Decl::dump() and Decl::print().

llvm-svn: 72597

llvm-svn: 72594

printing logic to help customize the output. For now, we use this
rather than a special flag to suppress the "struct" when printing
"struct X" and to print the Boolean type as "bool" in C++ but "_Bool"
in C.

llvm-svn: 72590

hadError (suppressing future diagnostics) if we didn't print an 
error.

llvm-svn: 72588

VLAs.

llvm-svn: 72587

template instantiation. This helps reduce our stack footprint when
performing deep template instantiations.

llvm-svn: 72582

handle the construct in question correctly.

llvm-svn: 72581

llvm-svn: 72580

a vla is used.

llvm-svn: 72575

llvm-svn: 72571

llvm-svn: 72570

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.

llvm-svn: 72568

to the DeclGroup.

llvm-svn: 72559

specifier resulted in the creation of a new TagDecl node, which
happens either when the tag specifier was a definition or when the tag
specifier was the first declaration of that tag type. This information
has several uses, the first of which is implemented in this commit:

  1) In C++, one is not allowed to define tag types within a type
  specifier (e.g., static_cast<struct S { int x; } *>(0) is
  ill-formed) or within the result or parameter types of a
  function. We now diagnose this.

  2) We can extend DeclGroups to contain information about any tags
  that are declared/defined within the declaration specifiers of a
  variable, e.g.,

    struct Point { int x, y, z; } p;

  This will help improve AST printing and template instantiation,
  among other things.

  3) For C99, we can keep track of whether a tag type is defined
  within the type of a parameter, to properly cope with cases like,
  e.g.,

    int bar(struct T2 { int x; } y) {
      struct T2 z;
    }

  We can also do similar things wherever there is a type specifier,
  e.g., to keep track of where the definition of S occurs in this
  legal C99 code:

    (struct S { int x, y; } *)0

  

llvm-svn: 72555

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.

llvm-svn: 72526

parser. Rather than placing all of the delayed member function
declarations and inline definitions into a single bucket corresponding
to the top-level class, we instead mirror the nesting structure of the
nested classes and place the delayed member functions into their
appropriate place. Then, when we actually parse the delayed member
function declarations, set up the scope stack the same way as it was
when we originally saw the declaration, so that we can find, e.g.,
template parameters that are in scope.

llvm-svn: 72502

Reintroduce the home for exception specs, and make Sema fill it. However, keep the spec out of the canonical type this time. Net effect is currently nothing, because the spec isn't checked anywhere.

llvm-svn: 72498

llvm-svn: 72489

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.

llvm-svn: 72486

improve some error recovery with explicit template instantiation.

llvm-svn: 72484

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.

llvm-svn: 72482

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.

llvm-svn: 72481

llvm-svn: 72478

llvm-svn: 72477

This allows me to remove some API that I don't want to carry over to ObjCObjectPointerType.

No functionality change.

llvm-svn: 72475

llvm-svn: 72474

instantiation of a declaration from the template version (or version
that lives in a template) and a given set of template arguments. This
needs much, much more testing, but it suffices for simple examples
like

  typedef T* iterator;
  iterator begin();

llvm-svn: 72461

overloaded operator[] or overloaded postfix unary operator (++,
--). Thanks to Eli for finding this bug!

llvm-svn: 72460

llvm-svn: 72440

llvm-svn: 72433

an integral constant expression, maintain a cache of the value and the
is-an-ICE flag within the VarDecl itself. This eliminates
exponential-time behavior of the Fibonacci template metaprogram.

llvm-svn: 72428

llvm-svn: 72417

argument.  This avoids the argument from being silenced when the argument is
the NULL macro, which is defined in a system header.  This also makes the output
a bit nicer, e.g.:

t.c:8:3: warning: null passed to a callee which requires a non-null argument
  func1(NULL, cp2, i1);
  ^     ~~~~

vs something like:

t.c:8:10: warning: argument is null where non-null is required
  func1(NULL, cp2, i1);
        ^

llvm-svn: 72393

expressions. We are now missing template instantiation logic for only
three classes of expressions:
  - Blocks-related expressions (BlockExpr, BlockDeclRefExpr)
  - C++ default argument expressions
  - Objective-C expressions

Additionally, our handling of DeclRefExpr is still quite poor, since
it cannot handle references to many kinds of declarations.

As part of this change, converted the TemplateExprInstantiator to use
iteration through all of the expressions via clang/AST/StmtNodes.def,
ensuring that we don't forget to add template instantiation logic for
any new expression node kinds.

llvm-svn: 72303

llvm-svn: 72301