Commit Graph

50 Commits

Author SHA1 Message Date
Richard Smith 0d963d6c49 Don't emit an ExtWarn on declarations of variable template specializations;
we'll already have issued the relevant diagnostic when we saw the declaration
of the primary template.

llvm-svn: 206441
2014-04-17 02:56:49 +00:00
Richard Smith 91dfaacd38 Implement DR329. We already did the right thing here in C++98 mode, but r104014
(which implemented the DR) was disabled in C++11.

llvm-svn: 200673
2014-02-03 02:37:59 +00:00
Richard Smith 3dd73db411 Move away from 'general' / 'generalized' as a way of identifying C++11
attribute syntax. There's nothing generalized about this; it's one of
several first-class attribute syntaxes we support, all of which are
more-or-less equally general.

As discussed on cfe-commits, we may want to revisit this if we start allowing
this syntax as an extension in C (or if C adopts the syntax), but hopefully
this diagnostic wording will be crystal clear to everyone in the mean time.

llvm-svn: 199443
2014-01-17 00:11:48 +00:00
Alp Toker 44e3905987 Clarify warn_cxx98_compat_attribute diagnostic
Various attribute flavours are supported in C++98. Make it clear that this
compatibility warning relates specifically to C++11-style generalized
attributes.

llvm-svn: 199053
2014-01-12 15:18:06 +00:00
Nick Lewycky 5641233047 Use the appropriate SourceLocation for the template backtrace when doing
template argument deduction.

llvm-svn: 198995
2014-01-11 02:37:12 +00:00
Richard Smith fde9485297 Implement C++1y digit separator proposal (' as a digit separator). This is not
yet approved by full committee, but was unanimously supported by EWG.

llvm-svn: 191417
2013-09-26 03:33:06 +00:00
Larisse Voufo 39a1e507ff Started implementing variable templates. Top level declarations should be fully supported, up to some limitations documented as FIXMEs or TODO. Static data member templates work very partially. Static data member templates of class templates need particular attention...
llvm-svn: 187762
2013-08-06 01:03:05 +00:00
Richard Smith 070a5d6750 Undisable a test for a c++98-compat warning for inheriting constructors now that we implement them.
llvm-svn: 186768
2013-07-20 19:22:08 +00:00
Richard Smith 72752e88ef Fix handling of braced-init-list as reference initializer within aggregate
initialization. Previously we would incorrectly require an extra set of braces
around such initializers.

llvm-svn: 182983
2013-05-31 02:56:17 +00:00
Richard Smith d0c842d7a4 Revert r172285 (suppressing a 'redundant' -Wc++98-compat warning) and add a
testcase for a situation it caused us to miss.

llvm-svn: 173540
2013-01-26 00:39:02 +00:00
Richard Smith a7edaad3b6 Only produce one -Wc++98-compat warning when initializing a reference from an init list with multiple elements.
llvm-svn: 172285
2013-01-12 01:05:20 +00:00
Richard Smith 92f241f188 Properly compute triviality for explicitly-defaulted or deleted special members.
Remove pre-standard restriction on explicitly-defaulted copy constructors with
'incorrect' parameter types, and instead just make those special members
non-trivial as the standard requires.

This required making CXXRecordDecl correctly handle classes which have both a
trivial and a non-trivial special member of the same kind.

This also fixes PR13217 by reimplementing DiagnoseNontrivial in terms of the
new triviality computation technology.

llvm-svn: 169667
2012-12-08 02:53:02 +00:00
Michael Han 64536a6d25 Teach Clang parser to reject C++11 attributes that appertain to declaration specifiers.
We don't support any C++11 attributes that appertain to declaration specifiers so reject 
the attributes in parser until we support them; this also conforms to what g++ 4.8 is doing.

llvm-svn: 167481
2012-11-06 19:34:54 +00:00
Douglas Gregor a3d3fe9be6 The presence of a user-*declared* constructor makes the default
constructor not user provided (and, therefore, non-trivial). Fixes
<rdar://problem/11736429>.

llvm-svn: 162947
2012-08-30 21:47:37 +00:00
Benjamin Kramer e3895eb050 Use the location of the copy assignment when diagnosing classes that are nontrivial because of it.
llvm-svn: 160962
2012-07-30 16:41:40 +00:00
Benjamin Kramer bc7dd9ea02 Fix ambiguity detection in GetBestOverloadCandidateSimple.
When performing the simplistic overload resolution for single-argument methods,
don't check the best overload for ambiguity with itself when the best overload
doesn't happen to be the first one.

Fixes PR13480.

llvm-svn: 160961
2012-07-30 15:53:26 +00:00
Richard Smith fa139cd3bd Remove -Wc++98-compat warning for an outrageously-rare circumstance of 'this'
being used in an exception specification in a way which isn't otherwise
ill-formed in C++98: this warning also incorrectly triggered on uses of 'this'
inside thread-safety attributes, and the mechanism required to tell these cases
apart is more complex than can be justified by the (minimal) value of this part
of -Wc++98-compat.

llvm-svn: 155857
2012-04-30 23:33:33 +00:00
Richard Smith d494c500a0 PR12224 (sort of): Diagnose inheriting constructor declarations in C++11 mode.
We do not support IRGen for these, and get some parts of the semantic analysis
wrong.

llvm-svn: 155728
2012-04-27 19:33:05 +00:00
Richard Smith bc8c5b5d67 Two missing -Wc++98-compat warnings, for null pointers as non-type template
arguments, and 'this' in exception-specifications.

llvm-svn: 155606
2012-04-26 01:51:03 +00:00
Richard Smith 2b349aee5b Add missing -Wc++98-compat warnings for initializer list initializations which
initialize references, create std::initializer_list objects, or call constructors.

llvm-svn: 155105
2012-04-19 06:58:00 +00:00
Richard Smith 9380e0ea23 Implement C++11 [temp.arg.nontype]'s permission to use the address of an object
or function with internal linkage as a non-type template argument.

llvm-svn: 154053
2012-04-04 21:11:30 +00:00
Richard Smith 852265ff1c PR10217: Provide diagnostics explaining why an implicitly-deleted special
member function is deleted.

llvm-svn: 153773
2012-03-30 20:53:28 +00:00
Sebastian Redl 6db0b1bfed Fix the other place where C++98 work for initializer lists was necessary.
llvm-svn: 153129
2012-03-20 21:24:03 +00:00
Sebastian Redl 1678d5f7b2 Add the missing compatibility warning for braced initializers as default arguments.
llvm-svn: 153026
2012-03-18 22:25:45 +00:00
Richard Smith 2a70e65436 Improve diagnostics for UCNs referring to control characters and members of the
basic source character set in C++98. Add -Wc++98-compat diagnostics for same in
literals in C++11. Extend such support to cover string literals as well as
character literals, and mark N2170 as done.

This seems too minor to warrant a release note to me. Let me know if you disagree.

llvm-svn: 152444
2012-03-09 22:27:51 +00:00
Richard Smith e18f0faff2 Lexing support for user-defined literals. Currently these lex as the same token
kinds as the underlying string literals, and we silently drop the ud-suffix;
those issues will be fixed by subsequent patches.

llvm-svn: 152012
2012-03-05 04:02:15 +00:00
Richard Smith 2fbb3d84a2 Tests for r151508.
llvm-svn: 151509
2012-02-26 23:49:01 +00:00
Richard Smith 2a986117e9 Fix r151443 to only apply C++11's exception for non-static data member access
in cases where we would otherwise disallow the access, and add a -Wc++98-compat
diagnostic for this C++11 feature.

llvm-svn: 151444
2012-02-25 10:20:59 +00:00
Richard Smith fd3da9358f __decltype is a GNU extension, not a C++11 extension.
llvm-svn: 151377
2012-02-24 18:10:23 +00:00
Richard Smith 4297375561 C++11 allows unions to have static data members. Remove the corresponding
restriction and add some tests.

llvm-svn: 150721
2012-02-16 20:41:22 +00:00
Sebastian Redl d74dd49065 Proper initializer list support for new expressions and type construct expressions. Array new still missing.
llvm-svn: 150346
2012-02-12 18:41:05 +00:00
Sebastian Redl 82ace98d55 Fix parsing new expressions using init lists. Probably still do the wrong thing in cases involving array new.
Show that many cases using initializer list constructors work, in that they parse and pass semantic analysis.

llvm-svn: 150316
2012-02-11 23:51:08 +00:00
Eli Friedman c7c97144af Stub out the Sema interface for lambda expressions, and change the parser to use it. Unconditionally error on lambda expressions because they don't work in any meaningful way yet.
llvm-svn: 147515
2012-01-04 02:40:39 +00:00
Richard Smith fe2750db42 Add -Wc++98-compat diagnostics for jumps which bypass initialization of non-POD
but trivially constructible and destructible variables in C++11 mode. Also
incidentally improve the precision of the wording for jump diagnostics in C++98
mode.

llvm-svn: 142619
2011-10-20 21:42:12 +00:00
Richard Smith 91c7bbde4b Add -Wc++98-compat warning for enumerations in nested name specifiers.
llvm-svn: 142568
2011-10-20 03:28:47 +00:00
Richard Smith f720df0ed6 -Wc++98-compat: warn on nontrivial types used in unions and anonymous structs.
llvm-svn: 142541
2011-10-19 20:41:51 +00:00
Richard Smith c620f554b9 -Wc++98-compat: diagnose if a reference is bound to a prvalue which does not
have an unambiguous accessible copying constructor; this is ill-formed in C++98.

llvm-svn: 142533
2011-10-19 16:55:56 +00:00
Richard Smith a066ccfcf1 Add a -Wc++98-compat warning for friend functions of class templates which would
be implicitly instantiated (resulting in a redefinition) in C++98.

llvm-svn: 142468
2011-10-19 00:54:10 +00:00
Richard Smith 38c0e0417c -Wc++98-compat: warn if a SFINAE substitution in C++11 suppresses an access
control diagnostic.

llvm-svn: 142463
2011-10-19 00:07:01 +00:00
Richard Smith c82397332d -Wc++98-compat and -Wc++98-compat-pedantic warnings for Sema, part 2.
llvm-svn: 142426
2011-10-18 21:39:00 +00:00
Richard Smith 0bf8a492fd -Wc++98-compat and -Wc++98-compat-pedantic warnings for Sema, part 1.
llvm-svn: 142419
2011-10-18 20:49:44 +00:00
Richard Smith b15c11c819 Add -Wc++98-compat warnings for uses of the new keywords 'alignof', 'char16_t',
'char32_t', 'constexpr', 'decltype', 'noexcept', 'nullptr' and 'static_assert'.

llvm-svn: 142302
2011-10-17 23:06:20 +00:00
Richard Smith e41fac231c Add -Wc++98-compat warning for deduced 'auto' type specifier.
llvm-svn: 142057
2011-10-15 05:42:01 +00:00
Richard Smith 5d164bc5e0 Implement -Wc++98-compat warnings for the parser.
llvm-svn: 142056
2011-10-15 05:09:34 +00:00
Richard Smith acd4d3d52a -Wc++98-compat warnings for the lexer.
This also adds a -Wc++98-compat-pedantic for warning on constructs which would
be diagnosed by -std=c++98 -pedantic (that is, it warns even on C++11 features
which we enable by default, with no warning, in C++98 mode).

llvm-svn: 142034
2011-10-15 01:18:56 +00:00
Richard Smith f679b5b6a6 -Wc++98-compat: warn on C++11 attributes and alignas.
llvm-svn: 141999
2011-10-14 20:48:27 +00:00
Richard Smith 2b6b0ee6d1 Test for r141985.
llvm-svn: 141998
2011-10-14 20:41:13 +00:00
Jeffrey Yasskin de8a104633 Revert the -Wc++98-compat flag because dgregor doesn't like it.
llvm-svn: 141921
2011-10-14 00:04:00 +00:00
Richard Smith 465f069b93 Convert newly-added test from -std=c++0x to -std=c++11.
llvm-svn: 141904
2011-10-13 22:45:21 +00:00
Jeffrey Yasskin a722170eb9 Implement the first piece of a -Wc++98-compat flag so that people can build in
C++11 mode but keep their sources compatible with C++98.  This patch implements
the -Wc++98-compat-variadic-templates sub-flag and -Wc++98-compat to include
it.

llvm-svn: 141898
2011-10-13 22:18:05 +00:00