Commit Graph

1789 Commits

Author SHA1 Message Date
Anders Carlsson 0a7c01ff2b Check that the function being overridden is virtual.
llvm-svn: 71802
2009-05-14 22:15:41 +00:00
Anders Carlsson e0dd1d57b3 Improvements to the FunctionDecl getters/setters.
llvm-svn: 71800
2009-05-14 21:46:00 +00:00
Douglas Gregor 372565211e Introduce a stack of instantiation scopes that are used to store the mapping from variable declarations that occur within templates to their instantiated counterparts
llvm-svn: 71799
2009-05-14 21:44:34 +00:00
Douglas Gregor 24c332b140 Link FunctionDecls instantiated from the member functions of a class
template to the FunctionDecls from which they were instantiated. This
is a necessary first step to support instantiation of the definitions
of such functions, but by itself does essentially nothing.

llvm-svn: 71792
2009-05-14 21:06:31 +00:00
Fariborz Jahanian 3133a2f08c updated comments.
llvm-svn: 71790
2009-05-14 20:57:28 +00:00
Fariborz Jahanian 6607b21156 Adds recognition of sentinel attribute on block declarations.
llvm-svn: 71788
2009-05-14 20:53:39 +00:00
Anders Carlsson 8fb0b8a2cb Better diagnostics for covariance when checking overriding return types.
llvm-svn: 71786
2009-05-14 19:52:19 +00:00
Sebastian Redl 4d226cf45f When there are any member new operators, global versions aren't looked up at all.
llvm-svn: 71780
2009-05-14 18:11:41 +00:00
Fariborz Jahanian 4a528035fd Diagnose missing sentinel argument on a funciton call
with sentinel attribute.

llvm-svn: 71778
2009-05-14 18:00:00 +00:00
Douglas Gregor d9034f0b89 In C++, warn when something previously declared as a "struct" is later
declared as a "class", or vice-versa. This warning is under the
control of -Wmismatched-tags, which is off by default.

llvm-svn: 71773
2009-05-14 16:41:31 +00:00
Anders Carlsson f2a2e338ff Add return type checking for overriding virtual functions. We currently don't check covariance but that's next.
llvm-svn: 71759
2009-05-14 01:09:04 +00:00
Douglas Gregor 2ec748cd5a Implement explicit instantiations of member classes of class templates, e.g.,
template<typename T>
  struct X {
    struct Inner;
  };

  template struct X<int>::Inner;

This change is larger than it looks because it also fixes some
a problem with nested-name-specifiers and tags. We weren't requiring
the DeclContext associated with the scope specifier of a tag to be
complete. Therefore, when looking for something like "struct
X<int>::Inner", we weren't instantiating X<int>. 

This, naturally, uncovered a problem with member pointers, where we
were requiring the left-hand side of a member pointer access
expression (e.g., x->*) to be a complete type. However, this is wrong:
the semantics of this expression does not require a complete type (EDG
agrees).

Stuart vouched for me. Blame him.

llvm-svn: 71756
2009-05-14 00:28:11 +00:00
Fariborz Jahanian 9e87721d47 Look for and diagnose missing sentinel argument on message
dispatch arguments which have sentinel attribute.

llvm-svn: 71737
2009-05-13 23:20:50 +00:00
Anders Carlsson e39935527e Use an iterator type for found_decls_begin/found_decls_end.
llvm-svn: 71721
2009-05-13 21:22:06 +00:00
Anders Carlsson 49d216db15 Add a new, more advanced CheckDerivedToBaseConversion that takes custom diagnostic IDs.
llvm-svn: 71720
2009-05-13 21:11:42 +00:00
Ted Kremenek 3b204e4c2e Add some basic type checking for attributes ns_returns_retained and
cf_returns_retained. Currently this attribute can now be applied to any
Objective-C method or C function that returns a pointer or Objective-C object
type.

Modify the tablegen definition of diagnostic 'warn_attribute_wrong_decl_type' to
expect that the diagnostics infrastructure will add quotes around the attribute
name when appropriate. Alonq with this change, I modified the places where this
warning is issued to passed the attribute's IdentifierInfo* instead of having a
hard-coded C constant string.

llvm-svn: 71718
2009-05-13 21:07:32 +00:00
Douglas Gregor bbbb02d463 Explicit instantiations of templates now instantiate the definitions
of class members (recursively). Only member classes are actually
instantiated; the instantiation logic for member functions and
variables are just stubs.

llvm-svn: 71713
2009-05-13 20:28:22 +00:00
Anders Carlsson 5879fbd933 Disable access control by default. It can be enabled with the -faccess-control option. When we have better support for it, we can enable it by default again.
llvm-svn: 71706
2009-05-13 19:49:53 +00:00
Douglas Gregor f61eca93c0 Improve the semantic checking for explicit instantiations of
templates. In particular:
  - An explicit instantiation can follow an implicit instantiation (we
  were improperly diagnosing this as an error, previously).
  - In C++0x, an explicit instantiation that follows an explicit
  specialization of the same template specialization is ignored. In
  C++98, we just emit an extension warning.
  - In C++0x, an explicit instantiation must be in a namespace
  enclosing the original template. C++98 has no such requirement.

Also, fixed a longstanding FIXME regarding the integral type that is
used for the size of a constant array type when it is being instantiated.

llvm-svn: 71689
2009-05-13 18:28:20 +00:00
Fariborz Jahanian 027b886a99 Some early declarations to support sentinel attribute on
message dispatches (and function calls later). No change in
functionality.

llvm-svn: 71683
2009-05-13 18:09:35 +00:00
Ted Kremenek 4554f9b134 Fix <rdar://problem/6880975> [format string] Assertion failed: (Arg < NumArgs && "Arg access out of range!").
For format string checking, only check the type of the format
specifier for non-vararg functions.

llvm-svn: 71672
2009-05-13 16:06:05 +00:00
Chris Lattner b70f3de625 Fix rdar://6880951 by rejecting vectors of vectors.
It seems dubious to me that isIntegerType() returns true for
vectors of integers, but not complex integers.  This should 
probably be rethought, I'll file a bugzilla.

llvm-svn: 71640
2009-05-13 05:13:44 +00:00
Chris Lattner df24298b40 reject use of the GNU _Decimal32 extension with a diagnostic, not an abort.
rdar://6880104

llvm-svn: 71639
2009-05-13 05:02:08 +00:00
Chris Lattner 5868c03191 eli correctly points out that this code is dead, just rip it out for
now until someone does it right

llvm-svn: 71638
2009-05-13 04:52:12 +00:00
Chris Lattner 94578cba76 add support for __sync_nand_and_fetch and __sync_fetch_and_nand,
rdar://6880573

llvm-svn: 71636
2009-05-13 04:37:52 +00:00
Chris Lattner 851eb927d7 Fix rdar://6881069, a crash on a form of vector_size that we
don't support.  While it would be nice to support this eventually,
this form is not common at all (just seen in gcc testsuite) and
it might be better to model vector_size as a type attribute anyway.
For now just emit a nice error on it.

llvm-svn: 71633
2009-05-13 04:00:12 +00:00
Douglas Gregor a1f4997368 Semantic analysis for explicit instantiation of class templates. We
still aren't instantiating the definitions of class template members,
and core issues 275 and 259 will both affect the checking that we do
for explicit instantiations (but are not yet implemented).

llvm-svn: 71613
2009-05-13 00:25:59 +00:00
Douglas Gregor 1b57ff32a8 Implement parsing for explicit instantiations of class templates, e.g.,
template class X<int>;

This also cleans up the propagation of template information through
declaration parsing, which is used to improve some diagnostics.

llvm-svn: 71608
2009-05-12 23:25:50 +00:00
Chris Lattner d98e7cf7c1 improve the diagnostic for uses of the GCC "global variable in a register" extension.
This implements rdar://6880449 - improve diagnostic for usage of "global register variable" GCC extension

llvm-svn: 71599
2009-05-12 21:44:00 +00:00
Fariborz Jahanian 2bd617c46c Method attributes may only be specified on method
declarations.

llvm-svn: 71597
2009-05-12 21:36:23 +00:00
Chris Lattner da7a0977d6 Method who have definitions in structs/classes are semantically inline.
Per the FIXME, it might be interesting to track whether the inline keyword
was also used on the method, but for now we don't do this.  Testcase pending.

llvm-svn: 71589
2009-05-12 20:55:07 +00:00
Douglas Gregor d002c7bc58 Encapsulate template arguments lists in a new class,
TemplateArgumentList. This avoids the need to pass around
pointer/length pairs of template arguments lists, and will eventually
make it easier to introduce member templates and variadic templates.

llvm-svn: 71517
2009-05-11 23:53:27 +00:00
Anders Carlsson 3881170898 Friend declarations are only valid inside class definitions.
llvm-svn: 71489
2009-05-11 22:55:49 +00:00
Douglas Gregor c9f9b86732 Implement the notions of the "current instantiation" and "unknown
specialization" within a C++ template, and permit name lookup into the
current instantiation. For example, given:

  template<typename T, typename U>
  struct X {
    typedef T type;

    X* x1;  // current instantiation
    X<T, U> *x2; // current instantiation
    X<U, T> *x3; // not current instantiation
    ::X<type, U> *x4; // current instantiation
    X<typename X<type, U>::type, U>: *x5; // current instantiation
  };

llvm-svn: 71471
2009-05-11 19:58:34 +00:00
Douglas Gregor 862d28e59c With the introduction of nullptr, a template argument that refers to a declaration can now be NULL. Use cast_or_null appropriately
llvm-svn: 71412
2009-05-10 23:27:08 +00:00
Douglas Gregor e362cea568 Implement the semantics of the injected-class-name within a class
template. The injected-class-name is either a type or a template,
depending on whether a '<' follows it. As a type, the
injected-class-name's template argument list contains its template
parameters in declaration order.

As part of this, add logic for canonicalizing declarations, and be
sure to canonicalize declarations used in template names and template
arguments. 

A TagType is dependent if the declaration it references is dependent.

I'm not happy about the rather complicated protocol needed to use
ASTContext::getTemplateSpecializationType.

llvm-svn: 71408
2009-05-10 22:57:19 +00:00
Sebastian Redl 576fd424df Implement C++0x nullptr.
llvm-svn: 71405
2009-05-10 18:38:11 +00:00
Ted Kremenek 9ecdfaf66d Add back Parse/Sema support for attributes cf_returns_retained and
ns_returns_retained, but do not include the other ownership attributes
we previously had.

llvm-svn: 71308
2009-05-09 02:44:38 +00:00
Fariborz Jahanian 5276014db2 We want to diagnose sending message to a forward class
and we also want to tell which message is actually 
being sent.

llvm-svn: 71296
2009-05-08 23:45:49 +00:00
Fariborz Jahanian 1bd844da80 Warn if forward class is used as a receiver.
llvm-svn: 71278
2009-05-08 23:02:36 +00:00
Fariborz Jahanian 3e68a1facc Fixes a bug in my last patch. Order of types reversed.
llvm-svn: 71267
2009-05-08 21:10:00 +00:00
Fariborz Jahanian fe9e3940eb Refactoring of my last patch.
llvm-svn: 71248
2009-05-08 20:20:55 +00:00
Fariborz Jahanian b2ab73d93c More type checking for properties, accessors and
use of dot-syntax expression. This is to match gcc's.

llvm-svn: 71243
2009-05-08 19:36:34 +00:00
Chris Lattner 5b9241b2a6 Fix the atomics sema code to convert operands to the argument types
of the underlying _N builtin, not the the type of the pointee of the
actual type.  This ensures that atomics involving pointers end up
using the correct integer type when they are resolved, avoiding
aborts in codegen.

llvm-svn: 71218
2009-05-08 15:36:58 +00:00
Ted Kremenek 062c14ba24 Remove experimental ownership attributes from Clang.
llvm-svn: 71216
2009-05-08 15:19:25 +00:00
Chris Lattner dc04654697 reimplement __sync_* builtins to be variadic and to follow the same
semantic rules that gcc and icc use.  This implements the variadic
and concrete versions as builtins and has sema do the 
disambiguation.  There are probably a bunch of details to finish up
but this seems like a large monotonic step forward :)

llvm-svn: 71212
2009-05-08 06:58:22 +00:00
Mike Stump 5580bdcaa2 Add a warning for a missing copy attribute on a property that is a
block pointer.  Radar 6441502

llvm-svn: 71190
2009-05-07 23:06:50 +00:00
Mike Stump 5e16a0d9e7 Allow qualifiers on blocks. Radar 6441502
llvm-svn: 71183
2009-05-07 21:56:17 +00:00
Ted Kremenek ba53fe98e7 More attribute renaming:
- Rename 'ns_returns_owned' -> 'ns_returns_retained'.
- Rename 'cf_returns_owned' -> 'cf_returns_retained'.

llvm-svn: 71182
2009-05-07 21:49:45 +00:00
Fariborz Jahanian 0d451813f9 a forward class declaration matching a typedef name of a class
refers to the underlying class.
This is radar 6859726. Steve, please read the radar for my rational.

llvm-svn: 71181
2009-05-07 21:49:26 +00:00