Commit Graph

554 Commits

Author SHA1 Message Date
Fariborz Jahanian 3bf0ded346 Patch to provide separate ASTs for multiple ObjC class extension
declarations (implements radar 7928731).

llvm-svn: 106597
2010-06-22 23:20:40 +00:00
Ted Kremenek 64c235e4c6 Extend format string type-checking to include '%p'. Fixes remaining cases PR 4468.
llvm-svn: 106151
2010-06-16 21:23:04 +00:00
Fariborz Jahanian 5981b04718 Clang missing warning about conflicting declaration vs. definition
for variable arguments list methods. (radar 8006060).

llvm-svn: 104407
2010-05-21 23:28:58 +00:00
Fariborz Jahanian 9f963c2488 Misc. fixes to bring Objetive-C++'s handling of
gc attributes to be inline with Objective-C
(for radar 7925141).

llvm-svn: 104084
2010-05-18 23:04:17 +00:00
Fariborz Jahanian 87b915a9bc These test now run in objective-c++ mode we well.
llvm-svn: 104041
2010-05-18 18:24:06 +00:00
Douglas Gregor 3f324d569b Diagnose unused exception parameters under a different warning group
(-Wunused-exception-parameter) than normal variables, since it's more
common to name and then ignore an exception parameter. This warning is
neither enabled by default nor by -Wall. Fixes <rdar://problem/7931045>.

llvm-svn: 102931
2010-05-03 18:51:14 +00:00
Douglas Gregor 50ec46d4af Complain when we try to initialize an object of Objective-C class type
(which is ill-formed) with an initializer list. Also, change the
fallback from an assertion to a generic error message, which is far
friendlier. Fixes <rdar://problem/7730948>.

llvm-svn: 102930
2010-05-03 18:24:37 +00:00
Fariborz Jahanian 58f11d6245 Do not issue warning on unimplemented property in the class, if it
conforms to a protocol as one of its super classes does. This is because
conforming super class will implement the property. This implements 
new warning rules for unimplemented properties (radar 7884086).

llvm-svn: 102919
2010-05-03 15:49:20 +00:00
Fariborz Jahanian 9e1a3af030 Properties cannot be synthesized by-dafult in
categories. Issue usual warnings instead of
confusing error message. Radar 7920807

llvm-svn: 102645
2010-04-29 17:52:18 +00:00
Chris Lattner 8f68b777e2 wordsmith an objc warning, rdar://7900756
llvm-svn: 102388
2010-04-26 21:44:01 +00:00
Douglas Gregor f356419bf5 Refactor Objective-C @catch parameter checking by detangling it from
function-parameter checking and splitting it into the normal
ActOn*/Build* pair in Sema. We now use VarDecl to represent the @catch
parameter rather than the ill-fitting ParmVarDecl.

llvm-svn: 102347
2010-04-26 17:32:49 +00:00
Fariborz Jahanian f9b52d5f63 Improve on my previous diagnostics: per Doug's comment.
llvm-svn: 102190
2010-04-23 17:52:02 +00:00
Fariborz Jahanian e459686aac Trying to improve on a diagnostics for properties.
llvm-svn: 102187
2010-04-23 17:22:07 +00:00
Anders Carlsson 58e24a8fd8 Change the 'declared at' diagnostic to say 'declared here'.
llvm-svn: 102163
2010-04-23 02:20:12 +00:00
Douglas Gregor 4f4946aaaa Whenever we complain about a failed initialization of a function or
method parameter, provide a note pointing at the parameter itself so
the user does not have to manually look for the function/method being
called and match up parameters to arguments. For example, we now get:

t.c:4:5: warning: incompatible pointer types passing 'long *' to
parameter of
      type 'int *' [-pedantic]
  f(long_ptr);
    ^~~~~~~~
t.c:1:13: note: passing argument to parameter 'x' here
void f(int *x);
            ^

llvm-svn: 102038
2010-04-22 00:20:18 +00:00
Douglas Gregor 0c78ad9665 Rework the Parser-Sema interaction for Objective-C message
sends. Major changes include:

  - Expanded the interface from two actions (ActOnInstanceMessage,
    ActOnClassMessage), where ActOnClassMessage also handled sends to
    "super" by checking whether the identifier was "super", to three
    actions (ActOnInstanceMessage, ActOnClassMessage,
    ActOnSuperMessage). Code completion has the same changes.
  - The parser now resolves the type to which we are sending a class
    message, so ActOnClassMessage now accepts a TypeTy* (rather than
    an IdentifierInfo *). This opens the door to more interesting
    types (for Objective-C++ support).
  - Split ActOnInstanceMessage and ActOnClassMessage into parser
    action functions (with their original names) and semantic
    functions (BuildInstanceMessage and BuildClassMessage,
    respectively). At present, this split is onyl used by
    ActOnSuperMessage, which decides which kind of super message it
    has and forwards to the appropriate Build*Message. In the future,
    Build*Message will be used by template instantiation.
  - Use getObjCMessageKind() within the disambiguation of Objective-C
    message sends vs. array designators.

Two notes about substandard bits in this patch:
  - There is some redundancy in the code in ParseObjCMessageExpr and
  ParseInitializerWithPotentialDesignator; this will be addressed
  shortly by centralizing the mapping from identifiers to type names
  for the message receiver.
  - There is some #if 0'd code that won't likely ever be used---it
  handles the use of 'super' in methods whose class does not have a
  superclass---but could be used to model GCC's behavior more
  closely. This code will die in my next check-in, but I want it in
  Subversion.

llvm-svn: 102021
2010-04-21 19:57:20 +00:00
Fariborz Jahanian 422cb21862 Improve on source location of diagnostic when default
property synthesis is using a super class ivar.

llvm-svn: 102011
2010-04-21 18:57:20 +00:00
Ted Kremenek 15a81e59ca Fix crash on invalid code where a @throw statement is not followed by a ';'
llvm-svn: 101941
2010-04-20 21:21:51 +00:00
Fariborz Jahanian 877aaa9706 Patch to support transparent_union types on
objective-c methods. Fixes radar 7875968.

llvm-svn: 101935
2010-04-20 20:28:15 +00:00
Douglas Gregor 26380d493b More tests for Objective-C-related name lookup weirdness. Yes, it's
weird; yes, it's what GCC does. Almost.

llvm-svn: 101803
2010-04-19 19:10:40 +00:00
Ted Kremenek 36712b2ac1 Allow the 'ibaction' attribute to be attached to method declarations (and not issue a warning).
llvm-svn: 101699
2010-04-18 04:59:38 +00:00
Anders Carlsson 7a4a25de1e Improve the bit-field too wide error message.
llvm-svn: 101384
2010-04-15 18:47:32 +00:00
Fariborz Jahanian b5795c01c4 Fix a -pedantic spurious warning involving @dynamic.
llvm-svn: 101284
2010-04-14 20:52:42 +00:00
Chris Lattner 5ff40fc7ab tighten the check for cast of super to avoid rejecting valid code,
rdar://7853261

llvm-svn: 101048
2010-04-12 17:09:27 +00:00
Chris Lattner 08e774b7ef fix rdar://7852959 - Use of super within a block is actually ok.
(aka, Fariborz was right ;-)

llvm-svn: 101046
2010-04-12 17:03:29 +00:00
Chris Lattner 3adb17d44f fix a bug I noticed by inspection, correcting two reject-valid bugs.
llvm-svn: 101026
2010-04-12 06:36:00 +00:00
Chris Lattner 3ab8ca2894 fix a rejects-valid bug that I introduced, pointed out
by David Chisnall

llvm-svn: 101024
2010-04-12 06:27:57 +00:00
Chris Lattner cd963185f0 fix a rejects-valid testcase involving super that I dreamt up.
This also fixes cases where super is used in a block in a
method which isn't valid.

llvm-svn: 101021
2010-04-12 06:20:33 +00:00
Chris Lattner c2ebb03297 Have the parser decide whether a message to super is a variable or
type, instead of having sema do it.

llvm-svn: 101016
2010-04-12 05:38:43 +00:00
Chris Lattner 6033be79b3 avoid double negatives
llvm-svn: 100976
2010-04-11 18:53:08 +00:00
Chris Lattner a36ec4243b fix PR6811 by not parsing 'super' as a magic expression in
LookupInObjCMethod.  Doing so allows all sorts of invalid code
to slip through to codegen.  This patch does not change the 
AST representation of super, though that would now be a natural
thing to do since it can only be in the receiver position and
in the base of a ObjCPropertyRefExpr.

There are still several ugly areas handling super in the parser,
but this is definitely a step in the right direction.

llvm-svn: 100959
2010-04-11 08:28:14 +00:00
Chris Lattner 00dcffded1 fix a problem causing us to lose the ''s around objc interface names
in a diagnostic.

llvm-svn: 100956
2010-04-11 07:04:01 +00:00
Douglas Gregor b10646d4ce Improve diagnostics like "initializing <type> from an expression of
type..." with "initializing <type> with an expression of type...",
which reads better. Thanks to John for the improved wording.

llvm-svn: 100873
2010-04-09 17:53:29 +00:00
Douglas Gregor c68e140657 Improve diagnostics when we fail to convert from a source type to a
destination type for initialization, assignment, parameter-passing,
etc. The main issue fixed here is that we used rather confusing
wording for diagnostics such as

t.c:2:9: warning: initializing 'char const [2]' discards qualifiers,
      expected 'char *' [-pedantic]
  char *name = __func__;
        ^      ~~~~~~~~

We're not initializing a 'char const [2]', we're initializing a 'char
*' with an expression of type 'char const [2]'. Similar problems
existed for other diagnostics in this area, so I've normalized them all
with more precise descriptive text to say what we're
initializing/converting/assigning/etc. from and to. The warning for
the code above is now:

t.c:2:9: warning: initializing 'char *' from an expression of type
      'char const [2]' discards qualifiers [-pedantic]
  char *name = __func__;
        ^      ~~~~~~~~

Fixes <rdar://problem/7447179>.

llvm-svn: 100832
2010-04-09 00:35:39 +00:00
Douglas Gregor f19ac0ede9 Downgrade the "declaration does not declare anything" error to a
warning. It's not harmful to have such pointless declarations, and GCC
does not diagnose this issue consistently.

llvm-svn: 100814
2010-04-08 21:33:23 +00:00
Ted Kremenek 5c7f596b4c Match GCC's behavior and do not include '-Wunused-parameter' in '-Wunused'.
llvm-svn: 100810
2010-04-08 21:10:56 +00:00
Fariborz Jahanian 60462098d4 Patch to implement gcc's cstyle arguments in objc
methods. wip.

llvm-svn: 100734
2010-04-08 00:30:06 +00:00
Fariborz Jahanian ea7a133775 Improve on diagnostics when an objc class is used as
a stand-alone type declaration.

llvm-svn: 100588
2010-04-07 00:22:00 +00:00
Fariborz Jahanian b2c1aac544 default access for synthesize ivar is @protect.
Fixes radar 7823675.

llvm-svn: 100582
2010-04-06 23:36:17 +00:00
Fariborz Jahanian 6a0a2e0ccc Patch to not build ivar ASTs when they are ilegally
declared in categories.

llvm-svn: 100577
2010-04-06 22:43:48 +00:00
Fariborz Jahanian 440a6832c5 Put type restriction on convesion to nonconforming 'id' back in
block pointer type comparison.

llvm-svn: 100533
2010-04-06 17:23:39 +00:00
Fariborz Jahanian e16cdb407a diagnose declaring class extension after its implementation
(radar 7822210).

llvm-svn: 100226
2010-04-02 20:53:05 +00:00
Fariborz Jahanian a9f8675e02 Diagnose invalid code with -fobjc-nonfragile-abi2 when
property is being accessed without the dot-syntax notation.
(radar 7822344).

llvm-svn: 100212
2010-04-02 20:09:24 +00:00
Fariborz Jahanian d603b54c55 Relax the typesafty rules of block pointers types which
take'id' or return 'id' in their type. Fixes radar 7814131.

llvm-svn: 100129
2010-04-01 19:50:22 +00:00
Fariborz Jahanian c1fb862fda Patch implements gcc's -Wno-protocol option to suppress warning
on unimplemented methods in protocols adopted by a class.
(radar 7056600).

llvm-svn: 100028
2010-03-31 18:23:33 +00:00
Fariborz Jahanian df58603c26 Recognize __attribute__((NSObject)) directly applied
on retain properties. (radar 7809468).

llvm-svn: 99951
2010-03-30 22:40:11 +00:00
Fariborz Jahanian 5cab26d058 Add Support for 'warn_unused_result" attribute on
objective-c methods. (radar 7418262).

llvm-svn: 99903
2010-03-30 18:22:15 +00:00
Fariborz Jahanian 2e8074bfc3 Further improvement to point to category
whose protocolls methods needs implementation.

llvm-svn: 99730
2010-03-27 21:10:05 +00:00
Fariborz Jahanian 97752f7c95 Improve diagnostics on incomplete implementation
of objc classes; including which methods
need be implemented and where they come from.
WIP.

llvm-svn: 99724
2010-03-27 19:02:17 +00:00
Fariborz Jahanian 9b37b1d6bb Allow conversion of qualified Class type to unqualified
Class type to match gcc's. Fixes radar 7789113.

llvm-svn: 99425
2010-03-24 21:00:27 +00:00
Fariborz Jahanian c5b7bfc657 Improve diagnostics when ivar added to class
extension (radar 6812436).

llvm-svn: 99408
2010-03-24 18:08:23 +00:00
Ted Kremenek 5921b83f54 Improve diagnostic for @property/ivar type mismatch by including the types of the
ivar and @property respectively.

llvm-svn: 99312
2010-03-23 19:02:22 +00:00
Fariborz Jahanian 00c291b012 Set the relevent attributes declared in class extension
and fix a missing diagnostics on assigning to a read-only
property. Fixes radar 7766184.

llvm-svn: 99230
2010-03-22 23:25:52 +00:00
Fariborz Jahanian cf711fb353 Diagnose miuse of property dot-syntax instead of crashing.
(radar 7634653).

llvm-svn: 99210
2010-03-22 21:02:34 +00:00
Fariborz Jahanian a9effb55f3 Fixes access rues for ivars declared in class
implementations (radar 7547942).

llvm-svn: 99198
2010-03-22 19:04:14 +00:00
Rafael Espindola 568586ff22 Fix PR6618.
If a struct has an invalid field, mark it as invalid. Also avoid producing
errors about incomplete types that are invalid.

llvm-svn: 99150
2010-03-21 22:56:43 +00:00
Fariborz Jahanian 5140920a48 More coherent diagnostics when ivar is placed n categories.
(related to radar 7538989).

llvm-svn: 98993
2010-03-19 21:25:51 +00:00
Fariborz Jahanian d5bb8cb348 Diagnose conversion of 'Class' to/from objective-c
object pointer types.
Fixes radar 7634850.

llvm-svn: 98970
2010-03-19 18:06:10 +00:00
Ted Kremenek 361ffd947c Make PredefinedExpr::ComputeName() more robust to incorrect
code when we are printing the name of an Objective-C method
whose class has not been declared.  Fixes <rdar://problem/7495713>.

llvm-svn: 98874
2010-03-18 21:23:08 +00:00
Fariborz Jahanian 8342e5776e Some cleanup, change diagnostic when assigning to
a property which is not lvalue.

llvm-svn: 98848
2010-03-18 18:50:41 +00:00
Fariborz Jahanian b8b0ea330c objective-c patch to provide type safty when blocks are passing or
returning objc objects. There will be a corresponding objective-c++
patch soon.

llvm-svn: 98696
2010-03-17 00:20:01 +00:00
Ted Kremenek e01bec9791 Add 'expected-note'
llvm-svn: 98560
2010-03-15 18:47:29 +00:00
Ted Kremenek 679708ee34 Correctly determine if the @property has been previously declared. If
a property has the same name as the ivar it wraps then the old logic
wouldn't find the previous property declaration.

llvm-svn: 98559
2010-03-15 18:47:25 +00:00
John McCall c33dec3664 Add support for -Wwrite-strings. Patch by Mike M! Fixes PR 4804.
llvm-svn: 98541
2010-03-15 10:54:44 +00:00
Douglas Gregor 6cf3f3c75e Statement expressions can be used in global- or namespace-scoped blocks
llvm-svn: 98135
2010-03-10 04:54:39 +00:00
Fariborz Jahanian c4813e8d02 Don't error when a block pointer is passed to a
vararg functions/methods. Fixes radar 7725203.

llvm-svn: 98070
2010-03-09 18:34:52 +00:00
Ted Kremenek a00c5db1a8 Augment __has_feature to report that Clang supports adding attribute 'unused'
to an Objective-C instance variable.

llvm-svn: 97850
2010-03-05 22:43:32 +00:00
Fariborz Jahanian d2bccafe82 Patch to build qualifier on objective-c
pointer types. Fixes radar 7626768.

llvm-svn: 97847
2010-03-05 22:42:55 +00:00
Ted Kremenek 09597b461d Fix crasher caused by setting a bit in a possibly empty bitvector while
doing printf format string checking.  This is a recent regression.

llvm-svn: 97318
2010-02-27 08:34:51 +00:00
Fariborz Jahanian 8e3b9db27f Forgot to include nested protocols in collection, resulting in
bogus warning. Fixes radar 7682116.

llvm-svn: 97157
2010-02-25 18:24:33 +00:00
Ted Kremenek 6bf658abef Allow __attribute__((unused)) to be applied to ObjC ivars.
llvm-svn: 97103
2010-02-25 03:26:51 +00:00
Fariborz Jahanian 545643c309 More Sema check for ivars in class continuation.
llvm-svn: 97002
2010-02-23 23:41:11 +00:00
Ted Kremenek 514ff70d04 Fix another crash on invalid code. In this case, handle ObjC categories (with no names)
that refer to an undefined class.

llvm-svn: 96976
2010-02-23 19:39:46 +00:00
Fariborz Jahanian 404dc425bc A test case for property synthesis using ivar in class extensions.
llvm-svn: 96968
2010-02-23 18:50:01 +00:00
Fariborz Jahanian afe1386ed9 More support for ivars in class extension.
llvm-svn: 96850
2010-02-23 01:26:30 +00:00
Ted Kremenek 2fb89539f7 Clang really intends to reject attribute 'warn_unused_result' on Objective-C methods, but
instead it crashes on them.  We might extend this attribute to work on methods, but for
now fix the crasher.  Addresses <rdar://problem/7670939>.

llvm-svn: 96723
2010-02-21 05:15:32 +00:00
Fariborz Jahanian 34e3cef483 Start supporting declaration of ivars in @implementation
blocks. WIP.

llvm-svn: 96696
2010-02-19 20:58:54 +00:00
Fariborz Jahanian c5d61df0a9 Issue extended diagnostic when property dot-syntax is used and
there is a setter but no getter (part of radar 7664555).

llvm-svn: 96687
2010-02-19 18:30:30 +00:00
Fariborz Jahanian 20912d644a Allow for declaration and use of ivars in a stand-alone
implementation (toward radar 7547942).

llvm-svn: 96479
2010-02-17 17:00:07 +00:00
Fariborz Jahanian 30a42923d3 Class continuation now has its own property ast for
those declared in it. This is to allow duplicate
property diagnostics for properties declared in class extensions
multiple times (radar 7629420) and for future use.

llvm-svn: 96276
2010-02-15 21:55:26 +00:00
Fariborz Jahanian dc68f9539c Patch to fix a warning which exposed a bug in building
a qualified objective-c pointer type. Fixes radar 7638810.
(Also removes a FIXME).

llvm-svn: 96003
2010-02-12 19:27:33 +00:00
Fariborz Jahanian 13b9782cc0 Diagnose when user provided getter is being used as lvalue
using property dot-syntax. Fixes radar 7628953.

llvm-svn: 95838
2010-02-11 01:11:34 +00:00
Fariborz Jahanian 113b8ad7cf Reverse a partial fix patch for radar 7214820. It broke some code and
I don't have time to refix it for now.

llvm-svn: 95733
2010-02-10 00:32:12 +00:00
Fariborz Jahanian 5db5281db8 Finish implementing property synthesis by default.
(radar 7381956).

llvm-svn: 95695
2010-02-09 21:49:50 +00:00
Fariborz Jahanian 04477f3de9 Merge block/function pointer types with objc's __weak
attribute properly and avoid bogus warning. This is
an objective-c fix only. objective-c++ follows different code
pass and requires separate fix (which will come at a later time).
Fixes radar 7214820.

llvm-svn: 95571
2010-02-08 21:09:39 +00:00
Ted Kremenek 2f2692f8ca Rename -cc1 option '-checker-cfref' to '-analyzer-check-objc-mem'.
llvm-svn: 95348
2010-02-05 02:06:54 +00:00
Anders Carlsson 8345a07c25 Fix test.
llvm-svn: 95108
2010-02-02 19:09:34 +00:00
Ted Kremenek b0fe9b9a40 Add test case for <rdar://problem/7068334> (which was fixed by r94864).
llvm-svn: 94865
2010-01-30 00:56:00 +00:00
Ted Kremenek 8d9842d43f Switch Sema over to using the new implementation of format string
checking.  It passes all existing tests, and the diagnostics have been
refined to provide better range information (we now highlight
individual format specifiers) and more precise wording in the
diagnostics.

llvm-svn: 94837
2010-01-29 20:55:36 +00:00
Mike Stump 0978af83b3 Insulate these from changes to the default for -Wunreachable-code.
llvm-svn: 94326
2010-01-23 20:12:18 +00:00
Fariborz Jahanian 935f041243 outside a method, 'super' should resolve in a normal name look up
to mimic gcc's behavior. Fixes radar 7400691.

llvm-svn: 94246
2010-01-22 23:04:44 +00:00
Fariborz Jahanian 4f8a57112f Settled rule on warning on unimplemented property in
category implementation when some implementations
are missing in the primary class implementation.
(fixes radar 6505200).

llvm-svn: 94014
2010-01-20 19:36:21 +00:00
Fariborz Jahanian 98609b3a07 Patch to implement required warnings for unimplemented
properties imported frfom protocol. Fixes radar 7544809.

llvm-svn: 93965
2010-01-20 01:51:55 +00:00
Fariborz Jahanian 6d77a96111 objective-c test case for __attribute__((unused)) on method arguments.
llvm-svn: 93887
2010-01-19 18:39:17 +00:00
Fariborz Jahanian c1d2fa5d48 Issue diagnostics (instead of crashing in code gen) when using
property dot-syntax notation to use setter/getters in objective-c. 
Fixes radar 7553050.

llvm-svn: 93883
2010-01-19 17:48:02 +00:00
Fariborz Jahanian 6fada5be91 When in objective-c methods, do the built-in name lookup after
ivar name lookup. Fixes pr5986.

llvm-svn: 93271
2010-01-12 23:58:59 +00:00
Chris Lattner f9895c48fd add a bunch of missing prototypes to tests
llvm-svn: 93072
2010-01-09 20:43:19 +00:00
Douglas Gregor 6da83624e4 Whenever we emit a typo-correction diagnostic, also emit a note
pointing to the declaration that we found that has that name (if it is
unique).

llvm-svn: 92877
2010-01-07 00:17:44 +00:00
Douglas Gregor 10f1e4dda8 When suggesting a typo correction for an @implementation without a
corresponding @interface, provide a note showing which interface we're
referring to. This note has the fix-it hint on it.

Also, don't automatically apply fix-it hints for notes. They're meant
to express fix-its that would change semantics.

llvm-svn: 92870
2010-01-06 23:44:25 +00:00
Fariborz Jahanian 8e356bfe28 Fix a bug when property is redeclared in multiple
continuation classes and its original declaration
is imported from a protocol. This fixes radar 7509234.

llvm-svn: 92856
2010-01-06 21:38:30 +00:00