Commit Graph

348 Commits

Author SHA1 Message Date
Douglas Gregor 205d5e3a51 Implement the suggested resolution to core issue 547, extended to also
allow ref-qualifiers on function types used as template type
arguments. GNU actually allows cv-qualifiers on function types in many
places where it shouldn't, so we currently categorize this as a GNU
extension.

llvm-svn: 124584
2011-01-31 16:09:46 +00:00
Francois Pichet 79f3a87007 Allow Microsoft attributes in a constructor's parameter list.
This fixes a few compile errors when parsing <regex> from MSVC 2008 with clang.

llvm-svn: 124573
2011-01-31 04:54:32 +00:00
Douglas Gregor a52713096d Improve the extension warning for the use of ref-qualifiers, to
distinguish them from rvalue references. Using the rvalue-references
warning was weird when the ref-qualifier was '&'.

llvm-svn: 124316
2011-01-26 20:35:32 +00:00
Douglas Gregor 5499235d13 Rvalue references for *this: parse ref-qualifiers.
llvm-svn: 124276
2011-01-26 03:43:54 +00:00
Douglas Gregor 0098499f7d Downgrade the error about rvalue references to an extension warning
and turn on __has_feature(cxx_rvalue_references). The core rvalue
references proposal seems to be fully implemented now, pending lots
more testing.

llvm-svn: 124169
2011-01-25 02:17:32 +00:00
Jeffrey Yasskin 8dfa5f1776 Fix warnings found by gcc-4.6, from -Wunused-but-set-variable and
-Wint-to-pointer-cast.

llvm-svn: 123719
2011-01-18 02:00:16 +00:00
Douglas Gregor 5ddf182fd3 Fix an embarrassing think in the disambiguation logic for the ellipsis in a parameter-type-list
llvm-svn: 122924
2011-01-05 23:06:07 +00:00
John McCall 53fa71476d Refactor how we collect attributes during parsing, and add slots for attributes
on array and function declarators.  This is pretty far from complete, and I'll
revisit it later if someone doesn't beat me to it.

llvm-svn: 122535
2010-12-24 02:08:15 +00:00
Douglas Gregor 27b4c16fef Implement parsing of function parameter packs and non-type template
parameter packs (C++0x [dcl.fct]p13), including disambiguation between
unnamed function parameter packs and varargs (C++0x [dcl.fct]p14) for
cases like 

  void f(T...)

where T may or may not contain unexpanded parameter packs.

llvm-svn: 122520
2010-12-23 22:44:42 +00:00
Abramo Bagnara 924a8f3573 Added ParenType type node.
llvm-svn: 121488
2010-12-10 16:29:40 +00:00
Abramo Bagnara 0e05e24e9c Added struct/class syntactic info for c++0x scoped enum.
llvm-svn: 120828
2010-12-03 18:54:17 +00:00
Douglas Gregor d1f69f6a1d After parsing a ':' in an enum-specifier within class context,
disambiguate between an expression (for a bit-field width) and a type
(for a fixed underlying type). Since the disambiguation can be
expensive (due to tentative parsing), we perform a simplistic
disambiguation based on one-token lookahead before going into the
full-blown tentative parsing. Based on a patch by Daniel Wallin.

llvm-svn: 120582
2010-12-01 17:42:47 +00:00
Nico Weber ece562ed27 Remove the other FIXME I added. This is covered by the Index test and not testable via -ast-dump.
llvm-svn: 119971
2010-11-22 13:48:02 +00:00
Nico Weber 7f8bb368ea Try to get the bots green after r119966.
llvm-svn: 119968
2010-11-22 12:50:03 +00:00
Nico Weber 774303425b Fix the source range of CXXNewExprs. Fixes http://llvm.org/pr8661.
llvm-svn: 119966
2010-11-22 10:30:56 +00:00
Douglas Gregor 3a001f48e4 When parsing something that looks like an ill-formed
protocol-qualifier list without a leading type (e.g., <#blah#>), don't
complain about it being an archaic protocol-qualifier list unless it
actually parses as one.

llvm-svn: 119805
2010-11-19 17:10:50 +00:00
Argyrios Kyrtzidis 20ee5ae871 Emit a specific diagnostic when typedefing C++ bool, mirroring gcc.
Fixes rdar://8365458

llvm-svn: 119359
2010-11-16 18:18:13 +00:00
Ted Kremenek 5eec2b0bd3 Region-allocate all AttributeList objects from a factory object instead of manually managing them
using new/delete and OwningPtrs.  After memory profiling Clang, I witnessed periodic leaks of these
objects; digging deeper into the code, it was clear that our management of these objects was a mess.  The ownership rules were murky at best, and not always followed.  Worse, there are plenty of error paths where we could screw up.

This patch introduces AttributeList::Factory, which is a factory class that creates AttributeList
objects and then blows them away all at once.  While conceptually simple, most of the changes in
this patch just have to do with migrating over to the new interface.  Most of the changes have resulted in some nice simplifications.

This new strategy currently holds on to all AttributeList objects during the lifetime of the Parser
object.  This is easily tunable.  If we desire to have more bound the lifetime of AttributeList
objects more precisely, we can have the AttributeList::Factory object (in Parser) push/pop its
underlying allocator as we enter/leave key methods in the Parser.  This means that we get
simple memory management while still having the ability to finely control memory use if necessary.

Note that because AttributeList objects are now BumpPtrAllocated, we may reduce malloc() traffic
in many large files with attributes.

This fixes the leak reported in: <rdar://problem/8650003>

llvm-svn: 118675
2010-11-10 05:59:39 +00:00
John McCall 9b72f89f0f Diagnose attempst to template using declarations and using directives.
Recover from the latter and fail early for the former.  Fixes PR8022.

llvm-svn: 118669
2010-11-10 02:40:36 +00:00
Chris Lattner 0786544ac5 fix PR8380, a crash on invalid due to an illogical DeclSpec SourceRange being constructed.
llvm-svn: 118625
2010-11-09 20:14:26 +00:00
John McCall 811a0f5578 Parse attributes on enumerators and instantiate attributes on enum decls.
llvm-svn: 117182
2010-10-22 23:36:17 +00:00
Douglas Gregor 06e41ae5c7 Teach the C++ simple-type-specifier parser and tentative parses about
protocol-qualified types such as id<Protocol>.

llvm-svn: 117081
2010-10-21 23:17:00 +00:00
Francois Pichet c2bc5ac149 Add parsing support for Microsoft attributes. MS attributes will just be skipped and not inserted into the AST for now.
llvm-svn: 116203
2010-10-11 12:59:39 +00:00
Douglas Gregor 0bf3140424 Implement C++0x scoped enumerations, from Daniel Wallin! (and tweaked a
bit by me). 

llvm-svn: 116122
2010-10-08 23:50:27 +00:00
Argyrios Kyrtzidis b5c7c51392 When we encounter a '==' in a context expecting a '=', assume the user made a typo:
t.c:1:7: error: invalid '==' at end of declaration; did you mean '='?
int x == 0;
      ^~
      =

Implements rdar://8488464.

llvm-svn: 116035
2010-10-08 02:39:23 +00:00
Douglas Gregor 7fb25418ed Implement the C++0x "trailing return type" feature, e.g.,
auto f(int) -> int

from Daniel Wallin!

(With a few minor bug fixes from me).

llvm-svn: 115322
2010-10-01 18:44:50 +00:00
Fariborz Jahanian 1db5c941ad vla expressions used in __typeof__ must be evaluated.
Fixes rdar://8476159.

llvm-svn: 114982
2010-09-28 20:42:35 +00:00
Anders Carlsson 991285e425 Allow the use of C++0x deleted functions as an extension in C++98.
llvm-svn: 114762
2010-09-24 21:25:25 +00:00
Douglas Gregor bfcea8b5b1 Implement code completion for Objective-C class message sends that are
missing the opening bracket '[', e.g.,

  NSArray <CC>

at function scope. Previously, we would only give trivial completions
(const, volatile, etc.), because we're in a "declaration name"
scope. Now, we also provide completions for class methods of NSArray,
e.g.,

  alloc

Note that we already had support for this after the first argument,
e.g.,

  NSArray method:x <CC>

would get code completion for class methods of NSArray whose selector
starts with "method:". This was already present because we recover
as if NSArray method:x were a class message send missing the opening
bracket (which was committed in r114057).

llvm-svn: 114078
2010-09-16 15:14:18 +00:00
Douglas Gregor abf4a3e4c6 Implement automatic bracket insertion for Objective-C class message
sends. These are far trickier than instance messages, because we
typically have something like

  NSArray alloc]

where it appears to be a declaration of a variable named "alloc" up
until we see the ']' (or a ':'), and at that point we can't backtrace.
So, we use a combination of syntactic and semantic disambiguation to
treat this as a message send only when the type is an Objective-C type
and it has the syntax of a class message send (which would otherwise
be ill-formed).

llvm-svn: 114057
2010-09-16 01:51:54 +00:00
Douglas Gregor 8a01b2a392 When parsing default function arguments, do not mark any declarations
used in the default function argument as "used". Instead, when we
actually use the default argument, make another pass over the
expression to mark any used declarations as "used" at that point. This
addresses two kinds of related problems:

  1) We were marking some declarations "used" that shouldn't be,
  because we were marking them too eagerly.
  2) We were failing to mark some declarations as "used" when we
  should, if the first time it was instantiated happened to be an
  unevaluated context, we wouldn't mark them again at a later point.

I've also added a potentially-handy visitor class template
EvaluatedExprVisitor, which only visits the potentially-evaluated
subexpressions of an expression. I bet this would have been useful for
noexcept...

Fixes PR5810 and PR8127.

llvm-svn: 113700
2010-09-11 20:24:53 +00:00
Douglas Gregor ce5aa33385 Eliminate the comma locations from all of the Sema routines that deal
with comma-separated lists. We never actually used the comma
locations, nor did we store them in the AST, but we did manage to
waste time during template instantiation to produce fake locations.

llvm-svn: 113495
2010-09-09 16:33:13 +00:00
Douglas Gregor ce66d02877 Improve recovery when a comma is missing between enumerators in an
enumeration definition. Fixes <rdar://problem/7159693>.

llvm-svn: 113201
2010-09-07 14:51:08 +00:00
Dawn Perchik 335e16bad4 Add symantic support for the Pascal calling convention via
"__attribute((pascal))" or "__pascal" (and "_pascal" under
-fborland-extensions).  Support still needs to be added to llvm.

llvm-svn: 112939
2010-09-03 01:29:35 +00:00
Sebastian Redl 5a5f2c76b6 Enable inline namespaces in C++03 as an extension.
llvm-svn: 112566
2010-08-31 00:36:45 +00:00
Sebastian Redl 6766794c0b Parser support for inline namespaces
llvm-svn: 112320
2010-08-27 23:12:46 +00:00
Douglas Gregor 28c7843ec4 Suggest "const" and "volatile" code completions after a function
declarator, the very definition of "low-hanging fruit".

llvm-svn: 112274
2010-08-27 17:35:51 +00:00
John McCall faf5fb4b78 One who seeks knowledge learns something new every day.
One who seeks the Tao unlearns something new every day.
Less and less remains until you arrive at non-action.
When you arrive at non-action,
nothing will be left undone.

llvm-svn: 112244
2010-08-26 23:41:50 +00:00
John McCall 6caebb15ed Reformatting.
llvm-svn: 112018
2010-08-25 02:45:51 +00:00
John McCall dadc575b1e OwningExprResult -> ExprResult. This patch brought to you by
M-x query-replace-regexp
\(Sema::\|Action::\|Parser::\|\)Owning\(Expr\|Stmt\)Result -> \2Result

llvm-svn: 111903
2010-08-24 06:29:42 +00:00
John McCall ba7bf59503 Abstract out passing around types and kill off ActionBase.
llvm-svn: 111901
2010-08-24 05:47:05 +00:00
John McCall b268a282a4 Kill off ExprArg (now just Expr*) and StmtArg (now just Stmt*).
llvm-svn: 111863
2010-08-23 23:25:46 +00:00
Douglas Gregor c49f5b2f11 Introduce a new code-completion point when we're parsing a
declarator. Here, we can only see a few things (e.g., cvr-qualifiers,
nested name specifiers) and we do not want to provide other non-macro
completions. Previously, we would end up in recovery mode and would
provide a large number of non-relevant completions.

llvm-svn: 111818
2010-08-23 18:23:48 +00:00
Douglas Gregor a05f5aba9a When complaining about a duplicate declspec, provide a Fix-It that
removes the copy. Patch from Eelis van der Weegen, tweaked/updated by
me.

llvm-svn: 111807
2010-08-23 14:34:43 +00:00
John McCall 37ad551a25 Sundry incremental steps towards killing off Action.
llvm-svn: 111795
2010-08-23 06:44:23 +00:00
John McCall 4887165193 DeclPtrTy -> Decl *
llvm-svn: 111733
2010-08-21 09:40:31 +00:00
John McCall 8b0666cf79 Another step in the process of making the parser depend on Sema:
- move DeclSpec &c into the Sema library
  - move ParseAST into the Parse library
Reflect this change in a thousand different includes.
Reflect this change in the link orders.

llvm-svn: 111667
2010-08-20 18:27:03 +00:00
Fariborz Jahanian 358acd5dff Get rid of extra nesting when checking for invalid type,
per Doug's comment.

llvm-svn: 111328
2010-08-17 23:50:37 +00:00
Fariborz Jahanian 9d7d3d84ac Diagnose if type of iboutletcollection attribute is a builtin type.
llvm-svn: 111324
2010-08-17 23:19:16 +00:00
Fariborz Jahanian 055068df4a Fix a crash when parsing malformed out-of-line member function
definition. radar 8307865.

llvm-svn: 111163
2010-08-16 17:58:53 +00:00