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12 Commits

Author SHA1 Message Date
Nico Weber
71e377d6ee If a function decl cannot be merged, mark it as invalid. 
Clang currently crashes on

    class C {
      C() = default;
      C() = delete;
    };

My cunning plan for fixing this was to change the `if (!FnD)` in
Parser::ParseCXXInlineMethodDef() to `if (!FnD || FnD->isInvalidDecl)` – but
alas, the second constructor decl wasn't marked as invalid.  This lets
Sema::MergeFunctionDecl() return true on function redeclarations, which leads
to them being marked invalid.

This also improves error messages when functions are redeclared.

llvm-svn: 226365
 2015-01-17 02:33:17 +00:00
Serge Pavlov
2e3ecb660a Recover from errors in enum definition 
Previously any error in enum definition body stopped parsing it. With this
change parser tries to recover from errors.
The patch fixes PR10982.

Differential Revision: http://llvm-reviews.chandlerc.com/D2018

llvm-svn: 198259
 2013-12-31 06:26:03 +00:00
Richard Smith
034185c2f9 The 'constexpr implies const' rule for non-static member functions is gone in 
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.

llvm-svn: 179969
 2013-04-21 01:08:50 +00:00
Richard Smith
22c7c4131a Teach statement / declaration disambiguation about C++11-style generalized initializers. 
llvm-svn: 177480
 2013-03-20 03:35:02 +00:00
Richard Smith
434516c50c Don't skip '_Alignas' when disambiguating 'final'. '_Alignas' can't appear here, 
and we used to assert if it did.

llvm-svn: 175866
 2013-02-22 06:46:23 +00:00
Richard Smith
b19337fbe4 PR15311: Finish implementation of the suggested resolution of core issue 1488, 
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.

llvm-svn: 175660
 2013-02-20 20:19:27 +00:00
Richard Smith
45fbfc7f11 Do not warn about a function decl / direct init ambiguity if the function has a trailing return type. 
llvm-svn: 160646
 2012-07-23 21:41:30 +00:00
Richard Smith
369b9f997c Extend the "expected ';' after struct" logic to also apply to enums, and to 
struct and enum forward-declarations.

llvm-svn: 159164
 2012-06-25 21:37:02 +00:00
Richard Smith
43f340f440 If we see '(...' where we're expecting an abstract-declarator, that doesn't 
necessarily mean we've found a function declarator. If the next token is not
a ')', this is actually a parenthesized pack expansion.

llvm-svn: 153544
 2012-03-27 23:05:05 +00:00
David Blaikie
9933a5abab Fix a crash-on-invalid found by -Wlogical-op-parentheses. 
llvm-svn: 152559
 2012-03-12 15:39:49 +00:00
Richard Smith
bfdb108fc5 Fix parsing of trailing-return-type. Types are syntactically prohibited from 
being defined here: [] () -> struct S {} does not define struct S.

In passing, implement DR1318 (syntactic disambiguation of 'final').

llvm-svn: 152551
 2012-03-12 08:56:40 +00:00
Richard Smith
1e3b0f0614 Update parser's disambiguation to cope with braced function-style casts in 
C++11, and with braced-init-list initializers in conditions. This exposed an
ambiguity with enum underlying types versus bitfields, which we resolve by
treating 'enum E : T {' as always defining an enumeration (even if it would
only successfully parse as a bitfield). This appears to be g++ compatible.

llvm-svn: 151227
 2012-02-23 01:36:12 +00:00