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2013-04-24Objective-C parsing [qoi]: Recover gracefully with good diagnosticFariborz Jahanian
when class implementation declaration adds protocol qualifier list. // rdar://12233858 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180228 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-23Warn that scoped enumerations are a C++11 extenstion when compiling inRichard Trieu
C++98 mode. This improves on the previous diagnostic message of: error: expected identifier or '{' git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180076 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-21The 'constexpr implies const' rule for non-static member functions is gone inRichard Smith
C++1y, so stop adding the 'const' there. Provide a compatibility warning for code relying on this in C++11, with a fix-it hint. Update our lazily-written tests to add the const, except for those ones which were testing our implementation of this rule. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179969 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Objective-C++: Enable passing of modern C++11 style Fariborz Jahanian
initialized temporaries to objc++ methods. // rdar://12788429 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179818 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Objective-C parsing [qoi]: Provide good recovery whenFariborz Jahanian
Objective-C dictionary literals has bad syntax for the separator. // rdar://10679157 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179784 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18[Parser] Handle #pragma pack/align inside C structs.Argyrios Kyrtzidis
Fixes PR13580. Patch by Serge Pavlov! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179743 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16Sema for Captured StatementsTareq A. Siraj
Add CapturedDecl to be the DeclContext for CapturedStmt, and perform semantic analysis. Currently captures all variables by reference. TODO: templates Author: Ben Langmuir <ben.langmuir@intel.com> Differential Revision: http://llvm-reviews.chandlerc.com/D433 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179618 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16Parser support for #pragma clang __debug capturedTareq A. Siraj
This patch implements parsing ‘#pragma clang __debug’ as a first step for implementing captured statements. Captured statements are a mechanism for doing outlining in the AST. see http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-January/027540.html. Currently returns StmtEmpty Author: Andy Zhang <andy.zhang@intel.com> Differential Revision: http://llvm-reviews.chandlerc.com/D369 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179614 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16Fix PR4296: Add parser detection/error recovery for nested functions, from ↵Douglas Gregor
Serve Pavlov! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179603 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16Basic support for Microsoft property declarations andJohn McCall
references thereto. Patch by Tong Shen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179585 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-12Parsing support for thread_local and _Thread_local. We give them the sameRichard Smith
semantics as __thread for now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179424 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08<rdar://problem/13540921> Fix a crasher when an Objective-C for-in loop gets ↵Douglas Gregor
a non-variable iteration declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179053 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-04Make the ObjC attributes diagnostics a bit more informative.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178720 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Emit a nicer diagnostic for misplaced attributes on ObjC directives.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178670 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Give the default CorrectionCandidateCallback::ValidateCandidate someKaelyn Uhrain
smarts so that it doesn't approve of keywords and/or type names when it knows (based on its flags) that those kinds of corrections are not wanted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178668 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Enable use of _Static_assert inside structs and unions in C11 mode (as per ↵Andy Gibbs
C11 6.7.2.1p1). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178632 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Assert that Parser::ParseStructUnionBody is not called for C++ code.Andy Gibbs
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178631 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02Objective-C arc [qui]. Don't issue the bridge castFariborz Jahanian
warning when doing a __bride cast in non-arc mode (which has no retain count effect). // rdar://13514210 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178592 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01PR15633: Note that we are EnteringContext when parsing the nested nameRichard Smith
specifier for an enumeration. Also fix a crash-on-invalid if a non-dependent name specifier is used to declare an enum template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178502 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Support C11 _Atomic type qualifier. This is more-or-less just syntactic ↵Richard Smith
sugar for the _Atomic type specifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178210 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27[Parser] Don't code-complete twice.Argyrios Kyrtzidis
When we are consuming the current token just to enter a new token stream, we push the current token in the back of the stream so that we get it again. Unfortunately this had the effect where if the current token is a code-completion one, we would code-complete once during consuming it and another time after the stream ended. Fix this by making sure that, in this case, ConsumeAnyToken() will consume a code-completion token without invoking code-completion. rdar://12842503 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178199 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Implement compiler intrinsics needed for compatibility with MSVC 2012 ↵Joao Matos
<type_traits>. Patch by me and Ryan Molden. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178111 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-26Implement special-case name lookup for inheriting constructors: memberRichard Smith
using-declarations with names which look constructor-like are interpreted as constructor names. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177957 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25Try harder to be signal-safe inside our signal handler. The most prominent ↵Nick Lewycky
behavioural difference is that we no longer clean the token before emitting it. This fixes a bug where clang hangs in the middle of crashing because the crash handler calls malloc from inside a crash that happened inside of free. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177919 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-22OpenMP threadprivate directive parsing and semantic analysisAlexey Bataev
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177705 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-22Fix a crash-on-valid where a block capture copy expression wasJohn McCall
picking up cleanups from earlier in the statement. Also fix a crash-on-invalid where a reference to an invalid decl from an enclosing scope was causing an expression to fail to build, but only *after* a cleanup was registered from that statement, causing an assertion downstream. The crash-on-valid is rdar://13459289. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177692 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Do the error recovery for @end only.Fariborz Jahanian
I am not sure how much we can improve for when a randon ObjC keyword is thrown into the ivar decl. block. // rdar://6854840 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177553 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Objective-C [qoi] more gracefull recovery when Fariborz Jahanian
'}' is missing for the ivar declarations. // rdar://6854840 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177549 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Teach statement / declaration disambiguation about C++11-style generalized ↵Richard Smith
initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177480 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19Objective-C [qoi]: Provide improved parse diagnostics whenFariborz Jahanian
closing rbrace is missing in an ObjC class declaration. Can do beter than this, but it involves addition of overhead which will be present in correct code. // rdar://6854840 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177435 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Add missing diagnostic for a nested-name-specifier on a free-standing type ↵Richard Smith
definition. Bump some related diagnostics from warning to extension in C++, since they're errors there. Add some missing checks for function specifiers on non-function declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177335 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-15PR15290: 'this' is not permitted in the declaration of a friend function,Richard Smith
therefore references to members should not be transformed into implicit uses of 'this'. Patch by Ismail Pazarbasi! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177134 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14Flag that friend function definitions are "late parsed" so thatJohn McCall
template instantiation will still consider them to be definitions if we instantiate the containing class before we get around to parsing the friend. This seems like a legitimate use of "late template parsed" to me, but I'd appreciate it if someone responsible for the MS feature would look over this. This file already appears to access AST nodes directly, which is arguably not kosher in the parser, but the performance of this path matters enough that perpetuating the sin is justifiable. Probably we ought to reconsider this policy for very simple manipulations like this. The reason this entire thing is necessary is that function template instantiation plays some very gross games in order to not associate an instantiated function template with the class it came from unless it's a definition, and the reason *that's* necessary is that the AST currently cannot represent the instantiation history of individual function template declarations, but instead tracks it in common for the entire function template. That probably prevents us from correctly reporting ill-formed calls to ambiguously instantiated friend function templates. rdar://12350696 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177003 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-08Remove unused variable.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176704 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-08Add support for the OpenCL attribute 'vec_type_hint'.Joey Gouly
Patch by Murat Bolat! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176686 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[Sema] Semantic analysis for empty-declaration and attribute-declaration.Michael Han
Introduce a new AST Decl node "EmptyDecl" to model empty-declaration. Have attributes from attribute-declaration appertain to the EmptyDecl node by creating the AST representations of these attributes and attach them to the EmptyDecl node so these attributes can be sema checked just as attributes attached to "normal" declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175900 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Don't accidentally and silently accept C++11 attributes in decl-specifier-seqsRichard Smith
in C++98. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175879 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Per the grammar in [dcl.dcl]p1, a simple-declaration can only have attributesRichard Smith
if it has declarators. We were missing the check for this in a couple of places. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175876 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Handle alignas(foo...) pack expansions.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175875 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Don't skip '_Alignas' when disambiguating 'final'. '_Alignas' can't appear here,Richard Smith
and we used to assert if it did. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175866 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[libclang] Fix a crash with invalid code, while skip function bodies is enabled.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175860 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Add -fbracket-depth=N, analogous to -ftemplate-depth= and -fconstexpr-depth=,Richard Smith
to control the check for the C 5.2.4.1 / C++ [implimits] restriction on nesting levels for parentheses, brackets and braces. Some code with heavy macro use exceeds the default limit of 256, but we don't want to increase it generally to avoid stack overflow on stack-constrained systems. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175855 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Use None rather than Optional<T>() where possible.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175705 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20Include llvm::Optional in clang/Basic/LLVM.hDavid Blaikie
Post-commit CR feedback from Jordan Rose regarding r175594. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175679 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20PR15311: Finish implementation of the suggested resolution of core issue 1488,Richard Smith
which allows grouping parens in an abstract-pack-declarator. This was already mostly implemented, but missed some cases. Add an ExtWarn for use of this extension until CWG ratifies it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175660 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20Process and handle attributes on conditions and for loop variables. Process andRichard Smith
diagnose attributes on alias declarations, using directives, and attribute declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175649 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20Don't repeat the function name in the comment.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175586 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19PR15300: Support C++11 attributes on base-specifiers. We don't support any suchRichard Smith
attributes yet, so just issue the appropriate diagnostics. Also generalize the fixit for attributes-in-the-wrong-place code and reuse it here, if attributes are placed after the access-specifier or 'virtual' in a base specifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175575 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15When a statement is dropped from the AST because it was invalid, make sureArgyrios Kyrtzidis
we don't do the scope checks otherwise we are going to hit assertion checks since a label may not have been actually added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175281 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Accept over-qualified constructor in MSVC emulation modeDmitri Gribenko
MSVC accepts this: class A { A::A(); }; Clang accepts regular member functions with extra qualification as an MS extension, but not constructors. This changes the parser to defer rejecting qualified constructors so that the same Sema logic can apply to constructors as regular member functions. This also improves the error message when MS extensions are disabled (in my opinion). Before it was: /Users/jason/Desktop/test.cpp:2:8: error: expected member name or ';' after declaration specifiers A::A(); ~~~~ ^ 1 error generated. After: /Users/jason/Desktop/test.cpp:2:6: error: extra qualification on member 'A' A::A(); ~~~^ 1 error generated. Patch by Jason Haslam. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174980 91177308-0d34-0410-b5e6-96231b3b80d8