214 Commits

Author SHA1 Message Date
Fariborz Jahanian
d11da7e52a Restore patch reversed in r118475. Fixes
// rdar://8632525

llvm-svn: 118634
2010-11-09 21:38:20 +00:00
Ted Kremenek
b4ea9a843a Fix memory leak of IdentifierIterator object.
llvm-svn: 118371
2010-11-07 06:11:33 +00:00
Douglas Gregor
05fcf84d14 Teach code completion to provide property results when the property
can be used to automatically synthesize an ivar.

llvm-svn: 118052
2010-11-02 20:36:02 +00:00
Argyrios Kyrtzidis
706bbf84d8 When doing name lookup for members don't look into global/namespace scope.
Better performance and fixes rdar://8603569.

llvm-svn: 117656
2010-10-29 16:12:50 +00:00
Douglas Gregor
af1daa9854 Remove redundant test
llvm-svn: 117446
2010-10-27 14:20:34 +00:00
Douglas Gregor
2a1d72d078 Teach typo correction not to return the same keyword that matches a
typo. This can happen with context-sensitive keywords like "super",
when typo correction didn't know that "super" wasn't permitted in this
context.

llvm-svn: 117372
2010-10-26 17:18:00 +00:00
Douglas Gregor
e63d087bcb C++ [basic.scope.hiding] allows an ordinary name to hide a non-tag
name *in the same scope*, but not across scopes. Implement the
highlighted condition.

llvm-svn: 117212
2010-10-23 16:06:17 +00:00
Douglas Gregor
c0d2490ac4 In the presence of using declarations, we can find the same class
members in class subobjects of different types. So long as the
underlying declaration sets are the same, and the declaration sets
involve non-instance members, this is not an ambiguity.

llvm-svn: 117163
2010-10-22 22:08:47 +00:00
Douglas Gregor
d507d77432 Fix handling of property and ivar lookup in typo correction; the two
kinds of lookup into Objective-C classes were tangled together, a
situation that was compounded by automatically synthesized ivars.

llvm-svn: 116907
2010-10-20 03:06:34 +00:00
Douglas Gregor
87074f19e8 Introduce a simple cache for unqualified typo corrections, so that we
don't repeatedly loop through identifiers, correcting the same typo'd
identifier over and over again. 

We still bail out after 20 typo corrections, but this should help
improve performance in the common case where we're typo-correcting
because the user forgot to include a header.

llvm-svn: 116901
2010-10-20 01:32:02 +00:00
Douglas Gregor
1f32ebe892 Eliminate another ordering dependency in typo correction. Re-enable typo.m, which seems to be working properly.
llvm-svn: 116894
2010-10-20 01:01:57 +00:00
Douglas Gregor
c1fb15ea8f Provide an upper bound to the edit-distance algorithm when performing
typo correction, to allow early exits.

llvm-svn: 116868
2010-10-19 22:14:33 +00:00
Douglas Gregor
93910a5a59 Improve the performance of typo correction, by using a simple
computation to compute the lower bound of the edit distance, so that
we can avoid computing the edit distance for names that will clearly
be rejected later. Since edit distance is such an expensive algorithm
(M x N), this leads to a 7.5x speedup when correcting NSstring ->
NSString in the presence of a Cocoa PCH.

llvm-svn: 116849
2010-10-19 19:39:10 +00:00
Douglas Gregor
26c5578d84 When performing typo correction, keep track of whether the last lookup
we did was an acceptable lookup. If it is, then we can re-use that
lookup result. If it isn't, we have to perform the lookup again. This
is almost surely the cause behind the mysterious typo.m failures on
some builders; we were getting the wrong lookup results returned.

llvm-svn: 116586
2010-10-15 16:49:56 +00:00
Douglas Gregor
af9eb59274 When we're in the context of an Objective-C message send's receiver,
typo correction prefers "super" over other, equivalent completions. I
believe this will fix the regression on the buildbot.

llvm-svn: 116574
2010-10-15 13:35:25 +00:00
Douglas Gregor
57756eabc9 When performing typo correction, look through the set of known
identifiers to determine good typo-correction candidates. Once we've
identified those candidates, we perform name lookup on each of them
and the consider the results. 

This optimization makes typo correction > 2x faster on a benchmark
example using a single typo (NSstring) in a tiny file that includes
Cocoa.h from a precompiled header, since we are deserializing far less
information now during typo correction.

There is a semantic change here, which is interesting. The presence of
a similarly-named entity that is not visible can now affect typo
correction. This is both good (you won't get weird corrections if the
thing you wanted isn't in scope) and bad (you won't get good
corrections if there is a similarly-named-but-completely-unrelated
thing). Time will tell whether it was a good choice or not.

llvm-svn: 116528
2010-10-14 22:11:03 +00:00
Douglas Gregor
0afa7f66cd Tweak the typo-correction implementation to determine corrections
solely based on the names it sees, rather than actual declarations it
gets. In essence, we determine the set of names that are "close
enough" to the typo'd name. Then, we perform name lookup for each of
those names, filtering out those that aren't actually visible, and
typo-correct from the remaining results.

Overall, there isn't much of a change in the behavior of typo
correction here. The only test-suite change comes from the fact that
we make good on our promise to require that the user type 3 characters
for each 1 character corrected. 

The real intent behind this change is to set the stage for an
optimization to typo correction (so that we don't need to deserialize
all declarations in a translation unit) and future work in finding
missing qualification ("'vector' isn't in scope; did you mean
'std::vector'?). Plus, the code is cleaner this way.

llvm-svn: 116511
2010-10-14 20:34:08 +00:00
Chris Lattner
a3d232ad27 zap more dead code.
llvm-svn: 113076
2010-09-04 18:19:08 +00:00
Ted Kremenek
0ef508d301 Split ObjCInterfaceDecl::ReferencedProtocols into two lists: ReferencedProtocols and AllReferencedProtocols. ReferencedProtocols
(and thus protocol_begin(), protocol_end()) now only contains the list of protocols that were directly referenced in
an @interface declaration.  'all_referenced_protocol_[begin,end]()' now returns the set of protocols that were referenced
in both the @interface and class extensions.  The latter is needed for semantic analysis/codegen, while the former is
needed to maintain the lexical information of the original source.

Fixes <rdar://problem/8380046>.

llvm-svn: 112691
2010-09-01 01:21:15 +00:00
Sebastian Redl
bd59576541 Make inline namespace not be transparent after all. The concept simply doesn't fit. Instead, special-case the few places where transparent contexts have the desired behavior for inline namespaces. Fixes a redeclaration issue in inline namespaces.
llvm-svn: 112637
2010-08-31 20:53:31 +00:00
John McCall
8302463dc6 Split out a header to hold APIs meant for the Sema implementation from Sema.h.
Clients of Sema don't need to know (for example) the list of diagnostics we
support.

llvm-svn: 112093
2010-08-25 22:03:47 +00:00
John McCall
e302792b61 GCC didn't care for my attempt at API compatibility, so brute-force everything
to the new constants.

llvm-svn: 112047
2010-08-25 11:45:40 +00:00
John McCall
aab3e41eb2 Split FunctionScopeInfo and BlockScopeInfo into their own header.
llvm-svn: 112038
2010-08-25 08:40:02 +00:00
John McCall
a1e130be25 Remove the DenseSet dependency from Sema.h.
llvm-svn: 112030
2010-08-25 07:03:20 +00:00
John McCall
19c1bfd1b0 Move more stuff out of Sema.h.
llvm-svn: 112026
2010-08-25 05:32:35 +00:00
John McCall
cc14d1fd23 More header elimination. The goal of all this is to allow Parser to
#include Sema.h while keeping all the AST declarations opaque.  That may
not be reasonably attainable, though.

llvm-svn: 111907
2010-08-24 08:50:51 +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
Douglas Gregor
3998219789 Extend the code-completion caching infrastructure to include global
declarations (in addition to macros). Each kind of declaration maps to
a certain set of completion contexts, and the ASTUnit completion logic
introduces the completion strings for those declarations if the actual
code-completion occurs in one of the contexts where it matters. 

There are a few new code-completion-context kinds. Without these,
certain completions (e.g., after "using namespace") would need to
suppress all global completions, which would be unfortunate.

Note that we don't get the priorities right for global completions,
because we don't have enough type information. We'll need a way to
compare types in an ASTContext-agnostic way before this can be
implemented.

llvm-svn: 111093
2010-08-15 06:18:01 +00:00
Douglas Gregor
c3a6ade0bb Move Sema's headers into include/clang/Sema, renaming a few along the way.
llvm-svn: 110945
2010-08-12 20:07:10 +00:00
John McCall
2ded5d25a9 Don't try to implicitly declare special members of an invalid class.
Fixes a crash in a rather large and difficult-to-reduce test case.

llvm-svn: 110882
2010-08-11 23:52:36 +00:00
Abramo Bagnara
d6d2f18905 Added locations and type source info for DeclarationName.
llvm-svn: 110860
2010-08-11 22:01:17 +00:00
Douglas Gregor
13e6587313 If name lookup finds different type declarations in different scopes
that actually refer to the same underlying type, it is not an
ambiguity; add uniquing support based on the canonical type of type
declarations. Fixes <rdar://problem/8296180>.

llvm-svn: 110806
2010-08-11 14:45:53 +00:00
Douglas Gregor
8ed0c0b99d Introduce -f{no-}spell-checking options to enable/disable
spell-checking. By default, spell-checking is enabled for Clang
(obviously) but disabled in CIndex for performance reasons.

llvm-svn: 107992
2010-07-09 17:35:33 +00:00
Douglas Gregor
9672f92f7f Lazily declare default constructors. We now delay the construction of
declarations for implicit default constructors, copy constructors,
copy assignment operators, and destructors. On a "simple" translation
unit that includes a bunch of C++ standard library headers, we
generate relatively few of these implicit declarations now:

  4/159 implicit default constructors created
  18/236 implicit copy constructors created
  70/241 implicit copy assignment operators created
  0/173 implicit destructors created

And, on this translation unit, this optimization doesn't really
provide any benefit. I'll do some more performance measurements soon,
but this completes the implementation work for <rdar://problem/8151045>.

llvm-svn: 107551
2010-07-03 00:47:00 +00:00
Douglas Gregor
a6d695057c Lazily declare implicit copy constructors.
llvm-svn: 107543
2010-07-02 23:41:54 +00:00
Douglas Gregor
52b7282081 Introduce a new routine, LookupConstructors(), and use it for all
constructor-name lookup.

llvm-svn: 107536
2010-07-02 23:12:18 +00:00
Douglas Gregor
330b9cff74 Lazily declare copy-assignment operators.
llvm-svn: 107521
2010-07-02 21:50:04 +00:00
Douglas Gregor
7454c563f1 Lazily declare the implicitly-declared destructor in a C++ class.
llvm-svn: 107510
2010-07-02 20:37:36 +00:00
Douglas Gregor
e71eddac59 Add a new routine Sema::LookupDestructor and make all destructor-lookup calls use that routine
llvm-svn: 107444
2010-07-01 22:47:18 +00:00
Douglas Gregor
5a5fcd83c5 Be a bit more careful with undefined CXXRecordDecls. Fixes
rdar://problem/8124080 and PR7118.

llvm-svn: 107358
2010-07-01 00:21:21 +00:00
John McCall
f24d7bbbcd A more minimal fix for PR6762.
llvm-svn: 104991
2010-05-28 18:45:08 +00:00
John McCall
61d8258fa3 Roll back r104941.
llvm-svn: 104990
2010-05-28 18:25:28 +00:00
John McCall
2177a9b65a Add a new attribute on records, __attribute__((adl_invisible)), and define
the x86-64 __va_list_tag with this attribute.  The attribute causes the
affected type to behave like a fundamental type when considered by ADL.

(x86-64 is the only target we currently provide with a struct-based
__builtin_va_list)

Fixes PR6762.

llvm-svn: 104941
2010-05-28 08:20:36 +00:00
John McCall
0af3d3b0f4 Optimize and complete associated-class-and-namespace collection from
a type.

llvm-svn: 104938
2010-05-28 06:08:54 +00:00
Douglas Gregor
3e51e173b6 Reinstate r104117, Chandler Carruth's change that "[provides] a naming
class for UnresolvedLookupExprs, even when occuring on template
names" along with a fix for an Objective-C++ crasher it introduced.

llvm-svn: 104277
2010-05-20 20:58:56 +00:00
Douglas Gregor
fe60c14263 Remove accidental commit
llvm-svn: 104207
2010-05-20 02:26:51 +00:00
Douglas Gregor
527786ea3a Various small fixes for construction/destruction of Objective-C++
instance variables:
  - Use isRecordType() rather than isa<RecordType>(), so that we see
  through typedefs in ivar types.
  - Mark the destructor as referenced
  - Perform C++ access control on the destructor

llvm-svn: 104206
2010-05-20 02:24:22 +00:00
Daniel Dunbar
fd5ed84873 Revert r104117, "Provide a naming class for UnresolvedLookupExprs, even when
occuring on..." which breaks some Objective-C code. Working on getting a test
case...

llvm-svn: 104150
2010-05-19 21:07:14 +00:00
Chandler Carruth
8fd2b8935e Provide a naming class for UnresolvedLookupExprs, even when occuring on
template names. We were completely missing naming classes for many unqualified
lookups, but this didn't trigger code paths that need it. This removes part of
an optimization that re-uses the template name lookup done by the parser to
determine if explicit template arguments actually form a template-id.
Unfortunately the technique for avoiding the duplicate lookup lost needed data
such as the class context in which the lookup succeeded.

llvm-svn: 104117
2010-05-19 09:39:06 +00:00