Commit Graph

1085 Commits

Author SHA1 Message Date
Fariborz Jahanian b52d8d2e5f objective-c: When default synthesizing readonly IBOutlet properties
provide a 'fixit' to change 'readonly' to 'readwrite'. // rdar://11448209

llvm-svn: 157193
2012-05-21 17:02:43 +00:00
Fariborz Jahanian 199a9b57a6 objective-c: Warn if default synthesizing readonly IBOutlet properties
and provide a 'fixit' to change 'readonly' to 'readwrite'. 'fixit'
part needs little more work. // rdar://11448209

llvm-svn: 157121
2012-05-19 18:17:17 +00:00
Fariborz Jahanian d945ce5fb7 objc: use "class extension" instead of "continuation class"
to match documentation. // rdar://11309706

llvm-svn: 157074
2012-05-18 21:22:49 +00:00
Fariborz Jahanian b4bef15ae6 Another test for r157025 <rdar://problem/11460990>.
llvm-svn: 157034
2012-05-18 00:19:25 +00:00
Douglas Gregor 0bf70f4be8 A selector match between two Objective-C methods does *not* guarantee
that the methods have the same number of parameters, although we
certainly assumed this in many places. Objective-C can be insane
sometimes. Fixes <rdar://problem/11460990>.

llvm-svn: 157025
2012-05-17 23:13:29 +00:00
Douglas Gregor c5928afb69 In the override search for Objective-C methods, protect against ASTs that have NULL interfaces behind a category, which can happen in invalid code. Fixes <rdar://problem/11478173>, a recent regression
llvm-svn: 157021
2012-05-17 22:39:14 +00:00
Fariborz Jahanian 0ebc0fa974 objective-c: perform strict type checking on property
type and its accessor type and issue error if types
are incompatible, instead of crashing in IRgen.
// rdar://1105153

llvm-svn: 156871
2012-05-15 22:37:04 +00:00
Argyrios Kyrtzidis 8e6951d81b Allow objc @() syntax for enum types.
Previously we would reject it as illegal using a value of
enum type and on ObjC++ it was illegal to use an enumerator
as well.

rdar://11454917

llvm-svn: 156843
2012-05-15 19:17:44 +00:00
Fariborz Jahanian 3da7775a6d objc: avoid duplicate diagnostics on certain type mismatches
between property and its backing ivar.

llvm-svn: 156832
2012-05-15 18:12:51 +00:00
Fariborz Jahanian e1ada58ef4 Remove word 'block' from option and diagnostic I added
in r156825.

llvm-svn: 156831
2012-05-15 17:43:16 +00:00
Fariborz Jahanian 80297b1d90 objective-c nonfragile abi: discourage ivar declarations
in @interface by issuing warning (off by default) under
opt'ed in flag -Winterface-block-ivar. // rdar://10763173

llvm-svn: 156825
2012-05-15 16:33:04 +00:00
Fariborz Jahanian 16d71bb834 objc: allow typedef'ing an id to a pointer to a c-struct only.
// rdar://11356439

llvm-svn: 156788
2012-05-14 22:48:56 +00:00
Jordy Rose 4af4487ba4 Only check NSArray/NSDictionary boxing method params once.
Once we've found a "good" method, we don't need to check its argument types
again. (Even if we might have later found a "bad" method, we were already
caching the method we first looked up.)

llvm-svn: 156719
2012-05-12 17:32:56 +00:00
Jordy Rose 890f4577b1 Don't crash on boxed strings when +stringWithUTF8String: is missing.
Also, unify some diagnostics for boxed expressions that have the same form.

Fixes PR12804.

llvm-svn: 156713
2012-05-12 15:53:41 +00:00
Argyrios Kyrtzidis 9b4fe35689 Don't crash when using objc boxed expression with parsing error.
rdar://11426994

llvm-svn: 156565
2012-05-10 20:02:36 +00:00
John McCall 0bd3e404af Bind cleanups after doing l2r conversion on the operand of a
@throw expression;  l2r conversion can introduce new cleanups
in certain cases, like when the expression is an ObjC property
reference of retainable type in ARC.

llvm-svn: 156425
2012-05-08 21:41:25 +00:00
Jean-Daniel Dupas 2b7da83759 Inhibit ObjC format warning only in system headers (NSLocalizedString).
Add a test case for the related NSAssert workaround.

llvm-svn: 156205
2012-05-04 21:08:08 +00:00
Fariborz Jahanian d5f34f9fee objective-c: warn for properties being default synthesized
under -Wobjc-missing-property-synthesis which must be
opted-in. // rdar://11295716

llvm-svn: 156078
2012-05-03 16:43:30 +00:00
Eli Friedman 169ec35bb3 Add a missing RequireCompleteType call when synthesizing properties. <rdar://problem/11333367>.
While I'm here, fix source locations for other diagnostics related to property synthesis.

llvm-svn: 155953
2012-05-01 22:26:06 +00:00
David Blaikie afd3d0ba40 Fix test cases broken by 155936.
llvm-svn: 155948
2012-05-01 21:29:03 +00:00
Ted Kremenek 124066c5cb Place several uncovered warnings under warning flags, and tweak diagnostic output including the term "gc" (in lowercase).
llvm-svn: 155892
2012-05-01 05:56:02 +00:00
Fariborz Jahanian 08a1eb77c5 with -Wdeprecated, include a note to its deprecated declaration
location. // rdar://10893232

llvm-svn: 155385
2012-04-23 20:30:52 +00:00
Fariborz Jahanian 344d65c248 objective-c arc: With currnt documentation,
objc_returns_inner_pointer attribute can be applied to
methods only. Diagnsose otherwise, instead of
crashing. // rdar://11253688

llvm-svn: 155245
2012-04-20 22:00:46 +00:00
Fariborz Jahanian d155c78d18 objective-arc: Retune my previous patch so warning
is issued on weak property as receiver and not on
any other use of a weak property. // rdar://10225276

llvm-svn: 155169
2012-04-19 23:49:39 +00:00
Fariborz Jahanian fce89c609d objective-c arc: Issue warning under -Wreceiver-is-weak
if receiver is a 'weak' property, by type or by attribute.
// rdar://10225276

llvm-svn: 155159
2012-04-19 21:44:57 +00:00
Patrick Beard 0caa39474b Implements boxed expressions for Objective-C. <rdar://problem/10194391>
llvm-svn: 155082
2012-04-19 00:25:12 +00:00
Fariborz Jahanian b525b52987 objective-c: Issue diagnostic when an implicit
property accessor (getter) missing, instead of crashing.
// rdar://11273060

llvm-svn: 155036
2012-04-18 19:13:23 +00:00
Fariborz Jahanian 29898f4565 objective-c modern translator: buildit objc bool
type for rewriter project will be BoolTy.
// rdar://11231426. 

llvm-svn: 154861
2012-04-16 21:03:30 +00:00
John McCall d239387098 When we're flagging a protected scope to prevent jumps into the
shadow of a block expression with non-trivial destructed cleanups,
we should flag that in the enclosing function, not in the block
that we're about to pop.

llvm-svn: 154646
2012-04-13 01:08:17 +00:00
Fariborz Jahanian e2b037d6ea objective-c literals: Issue warning and ignore
when BOOL is not of an intergal type when
boolean literals are used. // rdar://11231426

llvm-svn: 154619
2012-04-12 21:24:56 +00:00
Patrick Beard acfbe9e1f2 Added a new attribute, objc_root_class, which informs the compiler when a root class is intentionally declared.
The warning this inhibits, -Wobjc-root-class, is opt-in for now. However, all clang unit tests that would trigger
the warning have been updated to use -Wno-objc-root-class. <rdar://problem/7446698>

llvm-svn: 154187
2012-04-06 18:12:22 +00:00
Fariborz Jahanian c806b90717 objective-c: Don't warn when a category does not implement a method
declared in its adopted protocol when another category declares it  
because that category will implement it. // rdar://11186449

llvm-svn: 154132
2012-04-05 22:14:12 +00:00
Fariborz Jahanian 6bd2226037 objc-arc: provide a warning when 'receiver' of a message is 'weak'
in arc mode and opted-in with -Wreceiver-is-weak flag.
// rdar://10225276

llvm-svn: 154042
2012-04-04 20:05:25 +00:00
John McCall bc15335e58 Handle placeholder expressions in an ObjC for-collection loop.
The way we handle this implicitly removes the ability to use
property l-values in this position, but that's really okay.

llvm-svn: 153729
2012-03-30 05:43:39 +00:00
John McCall 67cd5e094e Forbid the block and lambda copy-capture of __autoreleasing variables
in ARC, under the usual reasoning limiting the use of __autoreleasing.

llvm-svn: 153725
2012-03-30 05:23:48 +00:00
Eli Friedman 410fc7ae89 Make sure we perform the relevant implied conversions correctly for ObjC methods with related result types. PR12384.
llvm-svn: 153716
2012-03-30 01:13:43 +00:00
Fariborz Jahanian e798ba4b67 Fix typo in my last patch.
llvm-svn: 153602
2012-03-28 21:13:53 +00:00
Fariborz Jahanian ba0afde486 objective-c: Improve diagnostics and
provide 'fixit' hint when dictionary index 
is not of proper type. // rdar://11062080

llvm-svn: 153584
2012-03-28 17:56:49 +00:00
Argyrios Kyrtzidis 822c433a27 Make sure we don't accept an @interface inside another objc container
just because there was an attribute in front of it.

llvm-svn: 153355
2012-03-23 23:24:23 +00:00
Ted Kremenek c08c475fe0 Support '%p' format specifier with block pointers.
llvm-svn: 152839
2012-03-15 21:22:27 +00:00
Argyrios Kyrtzidis 3b60cffa22 Fix crash at @implementation with a forward reference as base class.
rdar://11020003

llvm-svn: 152596
2012-03-13 01:09:36 +00:00
Richard Smith c5b0552055 Fix parsing of type-specifier-seq's. Types are syntactically allowed to be
defined here, but not semantically, so

  new struct S {};

is always ill-formed, even if there is a struct S in scope.

We also had a couple of bugs in ParseOptionalTypeSpecifier caused by it being
under-loved (due to it only being used in a few places) so merge it into
ParseDeclarationSpecifiers with a new DeclSpecContext. To avoid regressing, this
required improving ParseDeclarationSpecifiers' diagnostics in some cases. This
also required teaching ParseSpecifierQualifierList about constexpr... which
incidentally fixes an issue where we'd allow the constexpr specifier in other
bad places.

llvm-svn: 152549
2012-03-12 07:56:15 +00:00
Fariborz Jahanian c8a322a407 lldb support: under debugger support flag, when sending message
to forward class, and assigning to an 'id' type var, message
sends default to 'id'. // rdar"//10988847

llvm-svn: 152420
2012-03-09 18:47:16 +00:00
John McCall 85110b47c8 Don't crash when a statement in a block is ill-formed but
introduces cleanups anyway.

llvm-svn: 152345
2012-03-08 22:00:17 +00:00
Fariborz Jahanian d6cb4a858d objective-c lldb support: don't perform ivar access control check
when debugging. // rdar://10997647

llvm-svn: 152187
2012-03-07 00:58:41 +00:00
Ted Kremenek 5022f1dffe Fix horrific CFG bug where '@autoreleasepool' would be put in a dangling block in the CFG.
llvm-svn: 152163
2012-03-06 23:40:47 +00:00
Ted Kremenek e65b086e07 Add clang support for new Objective-C literal syntax for NSDictionary, NSArray,
NSNumber, and boolean literals.  This includes both Sema and Codegen support.
Included is also support for new Objective-C container subscripting.

My apologies for the large patch.  It was very difficult to break apart.
The patch introduces changes to the driver as well to cause clang to link
in additional runtime support when needed to support the new language features.

Docs are forthcoming to document the implementation and behavior of these features.

llvm-svn: 152137
2012-03-06 20:05:56 +00:00
Fariborz Jahanian 7923ef41e1 objc: When issue diagnostic about deprecated method, also
issue the note if it is because message is sent to a forward class
declaration in delayed diagnostic. // rdar://10290322

llvm-svn: 151942
2012-03-02 21:50:02 +00:00
Argyrios Kyrtzidis 4af2cb3355 [Sema] Fix crash-on-invalid-code issue:
@class I;
@implementation I(cat) // crashes here
@end

rdar://10968158

llvm-svn: 151931
2012-03-02 19:14:29 +00:00
Ted Kremenek 05e916bc95 Fix regression from llvm-gcc where we should NOT emit a warning about __attribute__((NSObject)) on a property declaration. This is needed to have retain properties for non-object pointers. Fixes <rdar://problem/10930507>.
llvm-svn: 151786
2012-03-01 01:40:32 +00:00
Fariborz Jahanian 86c2f5cc70 objective-c: provide fixit hint when atomic property does not
have matching user defined setter/getter and a warning is issued. 
In this case, a fixit note is displayed. // rdar://10267155

llvm-svn: 151766
2012-02-29 22:18:55 +00:00
Ted Kremenek 59b10db2bc After numerous requests, have Objective-C 'method declared here' notes mention the actual method. This looks better within an IDE, where text isn't always regurgitated in the presentation of a warning. Fixes radar 10914035.
llvm-svn: 151579
2012-02-27 22:55:11 +00:00
Eli Friedman 8a78a58188 Improve the diagnostic in ARC mode when a conditional with an Objective-C type and void* is used. <rdar://problem/10486347>.
llvm-svn: 151416
2012-02-25 00:23:44 +00:00
Eli Friedman ec52f92db3 Handle "#pragma GCC visibility" in a few more places. Switch over "#pragma pack" to use the same handling that gcc does. Fixes <rdar://problem/10871094> and <rdar://problem/10893316>.
(Hopefully, common usage of these pragmas isn't irregular enough to break our current handling.  Doug has ideas for a more crazy approach if necessary.)

llvm-svn: 151307
2012-02-23 23:47:16 +00:00
Fariborz Jahanian 86f8266b9f objective-c++: Type of an objc string literal is NSString, not 'id'.
// rdar://10907410

llvm-svn: 151296
2012-02-23 22:51:36 +00:00
John McCall 24992371a5 Don't crash on attempts to synthesize an invalid property.
rdar://problem/10904479

llvm-svn: 151089
2012-02-21 21:48:05 +00:00
Jean-Daniel Dupas 58dab6829a When calling a non variadic format function(vprintf, vscanf, NSLogv, …), warn if the format string argument is a parameter that is not itself declared as a format string with compatible format.
llvm-svn: 151080
2012-02-21 20:00:53 +00:00
Ted Kremenek 084e1b48a1 Change wording of warning about using __bridge casts in non-ARC.
llvm-svn: 150868
2012-02-18 04:42:38 +00:00
Ted Kremenek 6eb25628c5 Revert r145999. This turned out to be a bad idea. Unfortunately, 'id' is used so profusely
in many APIs and large codebases that this made the deprecated warning trigger happy to
the point of not being useful.

llvm-svn: 150223
2012-02-10 02:45:47 +00:00
Fariborz Jahanian 29082a5f1d objc: If a method is not implemented in the category implementation but
has been declared in its primary class, superclass,
or in one of their protocols, no need to issue unimplemented method. 
// rdar://10823023

llvm-svn: 150206
2012-02-09 21:30:24 +00:00
John McCall 5ece54ce3f Only complain about __strong __strong id, not __strong SomeStrongTypedef
or __strong __typeof__(some.strong.thing).

llvm-svn: 150029
2012-02-08 00:46:41 +00:00
Argyrios Kyrtzidis b6c6a58366 Make parsing of objc @implementations more robust.
Parsing of @implementations was based on modifying global state from
the parser; the logic for late parsing of methods was spread in multiple places
making it difficult to have a robust error recovery.

  -it was difficult to ensure that we don't neglect parsing the lexed methods.
  -it was difficult to setup the original objc container context for parsing the lexed methods
   after completing ParseObjCAtImplementationDeclaration and returning to top level context.

Enhance parsing of @implementations by centralizing it in Parser::ParseObjCAtImplementationDeclaration().
ParseObjCAtImplementationDeclaration now returns only after an @implementation is fully parsed;
all the data and logic for late parsing of methods is now in one place.

This allows us to provide code-completion for late parsed methods with mis-matched braces.
rdar://10775381

llvm-svn: 149987
2012-02-07 16:50:53 +00:00
Eli Friedman 2beed114ba Fix a couple of nasty bugs involving negative enum constants. <rdar://problem/10760113>.
llvm-svn: 149965
2012-02-07 04:34:38 +00:00
Ted Kremenek d22b98aad2 Tweak format string checking to work with %@ and ObjC toll-free bridging. <rdar://problem/10814120>
llvm-svn: 149907
2012-02-06 21:45:29 +00:00
Fariborz Jahanian adfe905145 objc: fixes a problem in block type comparison involving
enums with underlying type explicitly specified
(feature which is on by default in objective-c). 
// rdar://10798770

llvm-svn: 149888
2012-02-06 19:06:20 +00:00
Sean Callanan 8870a32408 Fixed some testsuite problems introduced by my
last commit.  Sorry for the outage.

llvm-svn: 149744
2012-02-04 02:28:18 +00:00
Nico Weber d1928cb912 Revert r149721. chapuni tells me akyrtzi already fixed the test
by adding a triple, and the typedef makes things worse on windows.

llvm-svn: 149740
2012-02-04 01:50:30 +00:00
Sean Callanan 1ce3a6b650 Clang has existing support for debuggers that
want to provide "po"-like functionality which
treats the result of an expression implicitly as
"id" (if it is not otherwise known) and prints
it as an Objective-C object.

This has in the past been gated by the
"DebuggerSupport" language option, but that is
too general.  Debuggers also provide other commands
like "print" that do not make any assumptions
about whether the object is an Objective-C object.

This patch makes the assumption conditional on a
new language option: DebuggerCastResultToId.  I
have also made corresponding modifications to the
testsuite.

llvm-svn: 149735
2012-02-04 01:29:37 +00:00
Nico Weber bf5e6442e7 Try to get test passing on windows.
Idea by Jean-Daniel Dupas.

llvm-svn: 149721
2012-02-03 23:36:13 +00:00
Argyrios Kyrtzidis e340deedbf Add a triple to test/SemaObjC/format-strings-objc.m to make it pass in windows hosts.
llvm-svn: 149696
2012-02-03 17:13:43 +00:00
Ted Kremenek 60bbeb345b Further downgrade -Warc-bridge-casts-disallowed-in-nonarc to a warning (not mapped to an error). We can consider mapping it back to an error later.
llvm-svn: 149670
2012-02-03 05:01:51 +00:00
Ted Kremenek 172039a89c Make error about using bridge casts in non-ARC mode a warning that is default mapped to an error. This is to ease the transition of large apps moving from non-ARC to ARC.
llvm-svn: 149659
2012-02-03 01:30:34 +00:00
Fariborz Jahanian c934de67e0 objc: Issue diagnostic when receiver type is a forward class declaration and
it is treated as of 'id' type resulting in multiple method lookup.
// rdar://10686120

llvm-svn: 149653
2012-02-03 01:02:44 +00:00
Fariborz Jahanian 6a73384b53 objective-c: When redeclaraing in continuation class a 'readonly'
property to 'readwrite', also allow redeclaration of
property type to a narrowring object type.
// rdar://10790488

llvm-svn: 149614
2012-02-02 18:54:58 +00:00
Fariborz Jahanian 17612b1dbf objc: don't crash if primary class is missing and continuation class
is declaring ivars. // rdar://10752081

llvm-svn: 149573
2012-02-02 00:49:12 +00:00
Fariborz Jahanian ccded6e447 objc2: add __has_feature(objc_default_synthesize_properties).
// rdar://10770497

llvm-svn: 149565
2012-02-02 00:15:51 +00:00
Fariborz Jahanian 30febeb224 Look for declaration of CFBridgingRetain/CFBridgingRetain before
changing the diagnostic. Also use correct spelling for both.

llvm-svn: 149554
2012-02-01 22:56:20 +00:00
Fariborz Jahanian bcdc282d85 objc-arc: In various diagnostics mention
CFBridgingRetain/CFBridgingRelease calls instead
of __bridge_retained/__bridge_transfer casts as preferred
way of moving cf objects to arc land. // rdar://10207950

llvm-svn: 149449
2012-01-31 23:42:37 +00:00
Nico Weber 496cdc2cb7 Let %S, %ls, %C match 16bit types in NSStrings.
As discussed at http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120130/052200.html

llvm-svn: 149325
2012-01-31 01:43:25 +00:00
Jean-Daniel Dupas 537aa1ac68 Disable "non literal format string" for NSString that result from a macro expansion.
This is to prevent diagnostic when using NSLocalizedString or CFCopyLocalizedString
macros which are usually used in place of NS and CF strings literals.

llvm-svn: 149268
2012-01-30 19:46:17 +00:00
Jean-Daniel Dupas 028573e794 Update on format attribute handling.
- Remove the printf0 special handling as we treat it as printf anyway.
- Perform basic checks (non-literal, empty) for all formats and not only printf/scanf.

llvm-svn: 149236
2012-01-30 08:46:47 +00:00
Jean-Daniel Dupas 400dd1c3d0 Remove the "C" in "implicitly declaring C library function" diagnostic
because all functions are not C functions (i.e. NSLog).

llvm-svn: 149150
2012-01-27 23:21:02 +00:00
John McCall 18a962bab5 Don't suppress access-control or invalid-type diagnostics from a
declarator just because we were able to build an invalid decl
for it.  The invalid-type diagnostics, in particular, are still useful
to know, and may indicate something about why the decl is invalid.

Also, recover from an illegal pointer/reference-to-unqualified-retainable
type using __strong instead of __autoreleasing;  in general, a random
object is much more likely to be __strong, so this avoids unnecessary
cascading errors in the most common case.

llvm-svn: 149074
2012-01-26 20:04:03 +00:00
Fariborz Jahanian 194904e499 objc: 'id' and block pointer compare in mergeTypes is
made symmetrical. // rdar://10734265

llvm-svn: 149065
2012-01-26 17:08:50 +00:00
Fariborz Jahanian 26d8371b07 objc: allow block pointer matching 'id' type when
they show up as argument types of two block pointers.
// rdar://10734265

llvm-svn: 149007
2012-01-26 00:45:38 +00:00
Jean-Daniel Dupas d5f7ef48e2 Add support for const pointer to literal-objc string as format attribute.
llvm-svn: 148948
2012-01-25 10:35:33 +00:00
Jean-Daniel Dupas 9aa95b16e1 Fix test on cygwin (where va_list expands to a different type)
llvm-svn: 148892
2012-01-25 01:02:26 +00:00
Ted Kremenek 9b1f3d46d0 Fix NSLog format string checking for %@.
llvm-svn: 148885
2012-01-25 00:04:09 +00:00
Jean-Daniel Dupas 78536ae5b5 Replace a hack to handle NSLog/NSLogv in sema by declaring them as Library Builtins.
llvm-svn: 148873
2012-01-24 22:32:46 +00:00
Jean-Daniel Dupas 5778cb8e06 Remove trailing slash in front of header name of ObjC builtins.
llvm-svn: 148872
2012-01-24 22:29:27 +00:00
Fariborz Jahanian e2a7776eff objc: Issue a generic diagnostic assigning to
an objc object in any abi mode.

llvm-svn: 148847
2012-01-24 19:40:13 +00:00
Fariborz Jahanian 04c4455dd4 objective-c: Ignore with warning forward class declaration whose name
matches a typedef declaring an object type. // rdar://10733000

llvm-svn: 148760
2012-01-24 00:40:15 +00:00
Ted Kremenek e7b9d4342b Tighten format string diagnostic and make it a bit clearer (and a bit closer to GCC's).
llvm-svn: 148579
2012-01-20 21:52:58 +00:00
Fariborz Jahanian 28324b0066 objc: deprecate direct usage of 'isa' of objc objects
in favor of usage of api's intended for.
// rdar://8290002

llvm-svn: 148404
2012-01-18 19:08:56 +00:00
Fariborz Jahanian c72a807039 objc-arc: when 'assign' attribute is unspecified,
rely on property's type for its life-time to avoid
bogus warning with -Warc-unsafe-retained-assign.
// rdar://10694932

llvm-svn: 148355
2012-01-17 22:58:16 +00:00
Bob Wilson 206e2302eb Disable -Wduplicate-method-match by default. <rdar://problem/10663536>
llvm-svn: 148343
2012-01-17 22:24:32 +00:00
Jean-Daniel Dupas 0ae6e671cc Fix a couples of issues in format strings checking.
PR 10274: format function attribute with the NSString archetype yields no compiler warnings
PR 10275: format function attribute isn't checked in Objective-C methods

llvm-svn: 148324
2012-01-17 20:03:31 +00:00
Fariborz Jahanian 9d7cf2baaf objc: fixes a bug where struct used inside an
objc class was not being exported to parent decl
context resulting in bogus mismatch warning later on.
// rdar://10655530

llvm-svn: 148320
2012-01-17 18:52:07 +00:00
Fariborz Jahanian 52d02f68e5 objc: disallow __block attribute on method params.
llvm-svn: 148197
2012-01-14 18:44:35 +00:00
Fariborz Jahanian 372030b2a1 objc parsing. Fixes a crash when parsing array initialization
inside a class implementation with parse errors. // rdar://10633434

llvm-svn: 148074
2012-01-13 00:14:12 +00:00
Fariborz Jahanian e74d47ed03 objc: do not warn when converting to a const id qualfied by its
list of protools. // rdar://10669694

llvm-svn: 148051
2012-01-12 22:12:08 +00:00
Fariborz Jahanian 4f8cb1e83a objective-c: fixes a regression in looking up names
in class extensions and categories by recent refactoring
of objc class ASTs. // rdar://1066654

llvm-svn: 147982
2012-01-12 00:18:35 +00:00
Fariborz Jahanian 39ba639f9d objc-arc: evaluate 'readonly' property with no known
life-time to that of its backing 'ivar's lifetime.
// rdar://10558871

llvm-svn: 147956
2012-01-11 18:26:06 +00:00
John McCall 9b80c2186f Do placeholder conversions on array bounds in both declarators and
new-expressions.

llvm-svn: 147900
2012-01-11 00:14:46 +00:00
Fariborz Jahanian edbc345170 objc-arc: fixes a crash when trying to find out retaining cycle
ownership of property sent to 'super'. // rdar://10640891

llvm-svn: 147868
2012-01-10 19:28:26 +00:00
Ted Kremenek 0c2c90b1ad After further discussion, rename attribute 'objc_disable_automatic_synthesis' to 'objc_requires_property_definitions'.
llvm-svn: 147622
2012-01-05 22:47:47 +00:00
Ted Kremenek dec9d12fc4 Rename attribute 'objc_suppress_autosynthesis' to 'objc_disable_automatic_synthesis'.
llvm-svn: 147567
2012-01-04 23:51:09 +00:00
Fariborz Jahanian f716839580 Test case for my previous patch.
llvm-svn: 147563
2012-01-04 23:16:48 +00:00
Fariborz Jahanian a28a78ec2f Support __has_attribute for objc_suppress_autosynthesis
which is automatic with proper spelling :).

llvm-svn: 147555
2012-01-04 22:29:28 +00:00
Fariborz Jahanian 1fc1c6c307 In non-gc, non-arc mode, property of 'Class' type
variety is treated as a 'void *'. No need to issue
warning reserved for objc object properties.
// rdar://10565506

llvm-svn: 147504
2012-01-04 00:31:53 +00:00
Fariborz Jahanian 7249e36704 objc: diagnose misplacement of objc_suppress_autosynthesis
attribute.

llvm-svn: 147490
2012-01-03 22:52:32 +00:00
Fariborz Jahanian 3c9707bd90 objc: use objc_suppress_autosynthesis attribute on classes
which should not be default synthesized.

llvm-svn: 147468
2012-01-03 19:46:00 +00:00
Fariborz Jahanian 028b9e1d0a objc/c++: Issue diagnostic when free-standing ivar is accessed
in class method instead of crash. // rdar://10593227

llvm-svn: 146998
2011-12-20 22:21:08 +00:00
Ted Kremenek dd5d0dc4f4 Refine error diagnostic for using bridged casts when not using ARC.
llvm-svn: 146938
2011-12-20 01:03:40 +00:00
Fariborz Jahanian f9aca2089e objc-arc: bridge casts in non-arc mode are now
error. // rdar://10597832

llvm-svn: 146918
2011-12-19 22:52:53 +00:00
Fariborz Jahanian 103ae5c48f objc-arc: bridge casts in non-objc-arc mode are ignord.
But, warn too. // rdar://10597832

llvm-svn: 146904
2011-12-19 21:06:15 +00:00
Fariborz Jahanian 21c2484454 objc: after issuing the warning on direct use of __attribute__((NSObject))
on properties, prevent consequential error  diagnostics. // rdar://10591336

llvm-svn: 146737
2011-12-16 15:54:29 +00:00
Douglas Gregor ab1ec82e04 Fix chaining of ObjCInterfaceDecl redeclarations
llvm-svn: 146722
2011-12-16 03:12:41 +00:00
Douglas Gregor dc9166c8e1 Keep track of all declarations of an Objective-C class (both forward
declarations and definitions) as ObjCInterfaceDecls within the same
redeclaration chain. This new representation matches what we do for
C/C++ variables/functions/classes/templates/etc., and makes it
possible to answer the query "where are all of the declarations of
this class?"

llvm-svn: 146679
2011-12-15 20:29:51 +00:00
Fariborz Jahanian 9e49b6a6ff objc: do not auto synthesize properties declared in
protocols; with a warning. // rdar://10567333

llvm-svn: 146626
2011-12-15 01:03:18 +00:00
Douglas Gregor 95715f9ecf In debugger support mode, if we have a top-level message send
expression with an unknown result type, assume that the result type is
'id'. Fixes <rdar://problem/10400663>.

llvm-svn: 146622
2011-12-15 00:53:32 +00:00
Richard Trieu 553b2b2e5d Modify how the -verify flag works. Currently, the verification string and
diagnostic message are compared.  If either is a substring of the other, then
no error is given.  This gives rise to an unexpected case:

  // expect-error{{candidate function has different number of parameters}}

will match the following error messages from Clang:

  candidate function has different number of parameters (expected 1 but has 2)
  candidate function has different number of parameters

It will also match these other error messages:

  candidate function
  function has different number of parameters
  number of parameters

This patch will change so that the verification string must be a substring of
the diagnostic message before accepting.  Also, all the failing tests from this
change have been corrected.  Some stats from this cleanup:

87 - removed extra spaces around verification strings
70 - wording updates to diagnostics
40 - extra leading or trailing characters (typos, unmatched parens or quotes)
35 - diagnostic level was included (error:, warning:, or note:)
18 - flag name put in the warning (-Wprotocol)

llvm-svn: 146619
2011-12-15 00:38:15 +00:00
Fariborz Jahanian c17c86b56c objc: diagnose duplicate declaration of methods
in classes. // rdar://10535349

llvm-svn: 146504
2011-12-13 19:40:34 +00:00
Fariborz Jahanian b989e6e50a objc-arc: better diagnostic when block is declared
inside a struct/union.

llvm-svn: 146444
2011-12-12 23:17:04 +00:00
Fariborz Jahanian e283346d0b objc-arc: diagnose synthesis of a 'weak unavailable' property.
// rdar://10535245

llvm-svn: 146272
2011-12-09 19:55:11 +00:00
Fariborz Jahanian 6bdeb14d5d objc: issue deprecated/unavailable diagnostic when
methods with these attributes are sent to receivers
of 'id' type too. // rdar://10459930

llvm-svn: 145999
2011-12-07 00:30:00 +00:00
Erik Verbruggen c6c8d9356d Extend warnings for missing '@end'.
Fixes PR2709.

llvm-svn: 145928
2011-12-06 09:25:23 +00:00
Fariborz Jahanian 56f326e7f2 objc: put out more coherent warning when method definition
attributes don't match its declaration. // rdar://10529259.

llvm-svn: 145872
2011-12-06 00:02:41 +00:00
Douglas Gregor 11bb308457 When typo-correction an Objective-C superclass name, don't
typo-correct to ourselves.

llvm-svn: 145583
2011-12-01 15:37:53 +00:00
Douglas Gregor d8fb1e30eb When sending a message to a receiver that has "unknown any" type,
force the unknown any type to "id" so that the message send can be
completed without requiring a case. Fixes <rdar://problem/10506646>.

llvm-svn: 145552
2011-12-01 01:37:36 +00:00
Ted Kremenek 764d63ad94 Specially whitelist the selector 'addOperationWithBlock:' for the retain-cycle checking in -Warc-retain-cycles. This commonly
is hit by users using NSOperationQueue.  Fixes <rdar://problem/10465721>.

llvm-svn: 145548
2011-12-01 00:59:21 +00:00
Fariborz Jahanian a45495a9f2 objc: warn if NSObject attribute appears other than in a typedef.
// rdar://10453342

llvm-svn: 145358
2011-11-29 01:48:40 +00:00
Fariborz Jahanian 22b405c7aa objc: turn warning for property type mismatch in
primary and its continuation class into error.
// rdar://10142679

llvm-svn: 145255
2011-11-28 18:38:27 +00:00
Douglas Gregor 4123a86fae Use Sema::RequireCompleteType to check for the completeness of
Objective-C classes. This has two purposes: to consistently provide
"forward declaration here" notes when we hit an incomplete type, and
to give LLDB a chance to complete the type.

RequireCompleteType bits from Sean Callanan!

llvm-svn: 144573
2011-11-14 22:10:01 +00:00
Argyrios Kyrtzidis 95dfc12cd6 Don't crash when a duplicate interface/protocol is inside an extern "C" context.
llvm-svn: 144508
2011-11-13 22:08:30 +00:00
Argyrios Kyrtzidis 3a8de5b560 Don't crash on invalid objc code.
llvm-svn: 144150
2011-11-09 00:22:48 +00:00
Fariborz Jahanian 557fc9a99d objc: Don't crash on missing @interface decl.
// rdar://10415026

llvm-svn: 144143
2011-11-08 22:51:27 +00:00
Fariborz Jahanian b1ac0813a6 objc-arc: 'readonly' property of retainable object
type is strong by default too. // rdar://10410903

llvm-svn: 144118
2011-11-08 20:58:53 +00:00
John McCall cfef546d40 There are some crazy cases that LookupMethodInReceiverType
doesn't duplicate, but they all surface as implicit
properties.  It's also a useful optimization to not
duplicate the implicit getter lookup.  So, trust the
getter lookup that was already done in these cases.

llvm-svn: 144031
2011-11-07 22:49:50 +00:00
Argyrios Kyrtzidis fed29142ba When applying ARC __weak to a non-objc pointer, do not give error that
__weak is unsupported by the deployment target, since it is going to be
ignored anyway.

Makes it easier for incremental migration from GC.

llvm-svn: 143975
2011-11-07 18:40:21 +00:00
Fariborz Jahanian 37c6417949 objc: fixed enum type is supported in objc mode.
Fixes a bug where enumerator type is not this
fixed type. // rdar://10381507

llvm-svn: 143724
2011-11-04 18:51:24 +00:00
Fariborz Jahanian 3018b95093 objc: warn if a readonly property has a setter attribute too.
// rdar://10357768

llvm-svn: 143518
2011-11-01 23:02:16 +00:00
Ted Kremenek 5d6044e413 Downgrade err_iboutlet_object_type to a warning. It was breaking a bunch of code. We will reconsider promoting it back to an error later.
llvm-svn: 143470
2011-11-01 18:08:35 +00:00
Fariborz Jahanian d01ddd1d07 Improve text of a diagnostic.
llvm-svn: 143353
2011-10-31 17:27:06 +00:00
Fariborz Jahanian 244b187d22 objc-arc: desugar certain type and improve on diagnostic for
ownership qualifier cast which won't work.
// rdar://10244607

llvm-svn: 143258
2011-10-29 00:06:10 +00:00
Argyrios Kyrtzidis 729387327b [ARC] Do not transfer ARC ownership if the cast is going to result in r-value,
in which case the ownership is redundant. Thanks to John for the suggestion.

llvm-svn: 143240
2011-10-28 22:54:28 +00:00
Fariborz Jahanian 2fa646d596 objective-c arc: type-casting of an objc pointer to
an rvalue retainable object type with life-time qualifier has no
effect and wil be diagnosed as error. // rdar://10244607

llvm-svn: 143219
2011-10-28 20:06:07 +00:00
Argyrios Kyrtzidis a9aabf7d51 Fix crash on an @interface nested inside @implementation, rdar://10336158
llvm-svn: 143085
2011-10-27 00:09:34 +00:00
John McCall 526ab47a55 Restore r142914 and r142915, now with missing file and apparent
GCC compiler workaround.

llvm-svn: 142931
2011-10-25 17:37:35 +00:00
NAKAMURA Takumi 9a8f13961c Revert r142914 and r142915, due to possibly missing file.
r142914: "Introduce a placeholder type for "pseudo object""
r142915: "Pull the pseudo-object stuff into its own file."
llvm-svn: 142921
2011-10-25 14:32:25 +00:00
John McCall c4a2d3259f Introduce a placeholder type for "pseudo object"
expressions: expressions which refer to a logical rather
than a physical l-value, where the logical object is
actually accessed via custom getter/setter code.
A subsequent patch will generalize the AST for these
so that arbitrary "implementing" sub-expressions can
be provided.

Right now the only client is ObjC properties, but
this should be generalizable to similar language
features, e.g. Managed C++'s __property methods.

llvm-svn: 142914
2011-10-25 07:27:56 +00:00
Ted Kremenek 7b2fbc61de Relax restriction of assigning to 'self' in ARC when a method is attributed with ns_consumes_self. Fixes <rdar://problem/10274056>.
llvm-svn: 142909
2011-10-25 04:52:20 +00:00
Fariborz Jahanian e96f9c816b Fixes a minor hick up to my last patch.
llvm-svn: 142711
2011-10-22 01:56:45 +00:00
Fariborz Jahanian 512a4cc967 objc: private methods can have their attributes, no diagnostic is required.
None private methods if their implementation have attribute, they must exactly 
match those in their declarations. // rdar://10271563

llvm-svn: 142709
2011-10-22 01:21:15 +00:00
Fariborz Jahanian 2512747959 objective-c: Diagnose redeclaration of private
ivars in class extensions. // rdar://10309454

llvm-svn: 142664
2011-10-21 18:03:52 +00:00
Fariborz Jahanian 7f73302b4f objc: allow class name qualified with protocols in
iboutletcollection attribute. But ignore protocol
list. // rdar://10296078

llvm-svn: 142459
2011-10-18 23:13:50 +00:00
John McCall 91aee685d8 Add a __has_feature check for arc_cf_code_audited.
llvm-svn: 142423
2011-10-18 21:18:53 +00:00
Fariborz Jahanian 2f31b33f34 objc: more changes in use of IBOutletCollection attribute.
'Class' is disallowed as argument.  If the argument is missing, 
NSObject is assumed. // rdar://10296078

llvm-svn: 142409
2011-10-18 19:54:31 +00:00
Fariborz Jahanian 6b70865ec0 objc: diagnose invalid argument to an
iboutletcollection attribute intead of crashing.
// rdar://10296078

llvm-svn: 142364
2011-10-18 17:11:10 +00:00
John McCall 95ff270ee9 Fix several bugs with #pragma clang arc_cf_code_audited and macros.
llvm-svn: 142324
2011-10-18 00:44:04 +00:00
John McCall 4124c4924d Teach the ARC compiler to not require __bridge casts when
passing/receiving CF objects at +0 to/from Objective-C methods
or audited C functions.

llvm-svn: 142219
2011-10-17 18:40:02 +00:00
Fariborz Jahanian c27cd1b881 Avoid duplicate unavailbility diagnostics in objc++.
// rdar://10268422

llvm-svn: 142078
2011-10-15 19:18:36 +00:00
Fariborz Jahanian 1cb83e24d4 objc-arc: Improve arc diagnostic when method is not
found in receiver's class. // rdar://9970739

llvm-svn: 141961
2011-10-14 17:34:08 +00:00
Fariborz Jahanian df4f7ca331 objc-arc: 'Class' property is implicitly __unsafe_unretained.
// rdar://10239594

llvm-svn: 141915
2011-10-13 23:45:45 +00:00
Fariborz Jahanian fa643c8f3b objc: note location of the previously declared
property in the diagnostic.

llvm-svn: 141745
2011-10-12 00:00:57 +00:00
Fariborz Jahanian 55b4e5c208 objc: err on a property designated both atomic and
nonatomic. // rdar://10260017

llvm-svn: 141580
2011-10-10 21:53:24 +00:00
Fariborz Jahanian 9059124b41 objc: Do not warn about mismatch on Super's readonly property attribute,
related to a readwrite property, and
Sub's readwrite property. // rdar://9396329

llvm-svn: 141497
2011-10-08 17:45:33 +00:00
Fariborz Jahanian 9cd57a7061 objc: Improve on diagnostic when atomic proeprty is synthesized
on one accessor and user-provide with another.

llvm-svn: 141343
2011-10-06 23:47:58 +00:00
Argyrios Kyrtzidis c281c96675 Implicitly assume that a ObjC category to an unavailable interface is also unavailable;
only give an 'unavailable' error on the @implementation of the category. rdar://10234078

llvm-svn: 141335
2011-10-06 23:23:27 +00:00
Argyrios Kyrtzidis 9321ad3f97 When using an unavailable/deprecated interface Foo inside Foo's interface/implementation
don't emit unavailable errors.

llvm-svn: 141334
2011-10-06 23:23:20 +00:00
Argyrios Kyrtzidis a7324ede34 Fix crash when using archaic protocol, rdar://10238337
llvm-svn: 141215
2011-10-05 21:28:06 +00:00
Fariborz Jahanian f2a7b0eade objc: Turn diagnostic on property type mismatch in
continuation class into warning. // rdar://10231514

llvm-svn: 141100
2011-10-04 18:44:26 +00:00
Fariborz Jahanian ed1933b02b objc arc: Suppress certain arc diagnostics on unavailable
functions. // rdar://10186536

llvm-svn: 141037
2011-10-03 22:11:57 +00:00
John McCall 9b0a7cea0f Make -fobjc-nonfragile-abi the -cc1 default, since it's the
increasingly prevailing case to the point that new features
like ARC don't even support the fragile ABI anymore.

This required a little bit of reshuffling with exceptions
because a check was assuming that ObjCNonFragileABI was
only being set in ObjC mode, and that's actually a bit
obnoxious to do.

Most, though, it involved a perl script to translate a ton
of test cases.

Mostly no functionality change for driver users, although
there are corner cases with disabling language-specific
exceptions that we should handle more correctly now.

llvm-svn: 140957
2011-10-02 01:16:38 +00:00
John McCall e4fe245716 Allow the results of cf_returns_not_retained function
calls, or calls to audited functions without an explicit
return attribute, to be casted without a bridge cast.
Tie this mechanism in with the existing exceptions to
the cast restrictions.  State those restrictions more
correctly and generalize.

llvm-svn: 140912
2011-10-01 01:01:08 +00:00
John McCall f1e8b34f6c Add an ns_bridged attribute, used to specify that a
pointer to the annotated struct type can be used as an 
Objective-C object pointer.  If an argument is given, the
type is actually "toll-free bridged" to the specific type 
named there, rather than just to 'id'.

For now, we cannot rely on all types being so annotated,
and we'll always have to have exceptions for things like
CFTypeRef (aka const void*), but this is clearly a good
foundation for improving toolage in this area.

llvm-svn: 140779
2011-09-29 07:17:38 +00:00
Ted Kremenek 7fd1723619 Like IBOutletCollection, it only makes sense to apply the IBOutlet annotation to Objective-C object types. Fixes <rdar://problem/10142685>.
llvm-svn: 140778
2011-09-29 07:02:25 +00:00
Fariborz Jahanian 97676979a7 objc arc: Diagnose block pointer type mismatch when
some arguments types are ns_consumed and some otherwise
matching types are not. This is objc side of
// rdar://10187884

llvm-svn: 140729
2011-09-28 21:52:05 +00:00
Ted Kremenek 3f443a71dc Tweak -Wobjc-missing-super-calls to not warning about missing [super dealloc] when in GC-only mode, and to not warning about missing [super finalize] when not using GC.
llvm-svn: 140713
2011-09-28 19:32:29 +00:00
Ted Kremenek ab2dcc8de6 Include prefix with default synthesized ivars.
llvm-svn: 140657
2011-09-27 23:39:40 +00:00
Douglas Gregor 75acd925d0 Only print _Bool as 'bool' when 'bool' is defined as an object-like
macro whose only replacement token is '_Bool'.

llvm-svn: 140656
2011-09-27 23:30:47 +00:00
Douglas Gregor c0b07286cf When 'bool' is not a built-in type but is defined as a macro, print
'bool' rather than '_Bool' within types, to make things a bit more
readable. Fixes <rdar://problem/10063263>.

llvm-svn: 140650
2011-09-27 22:38:19 +00:00
Fariborz Jahanian ac8dbf0fc7 objcetive-c-arc: When overriding a method, its ns_consumed patameter
attribute must match its overriden method. Same also for
ns_returns_retained/not_retained on the result type.
This is one half of // rdar://10187884

llvm-svn: 140649
2011-09-27 22:35:36 +00:00
Douglas Gregor 486b74e596 Revert r139989 and r140031, which implemented the Objective-C type
system change in <rdar://problem/10109725> that allows conversion from
'self' in class methods to the root of the class's hierarchy. This
conversion rule is a hack that has non-trivial repurcussions
(particularly with overload resolution).

llvm-svn: 140605
2011-09-27 16:10:05 +00:00
Fariborz Jahanian 698bd3113e objc - don't complain about unimplemented property when conforming
protocol declares the property, as well as one of its superclasses.
Property will be implemented in the super class. // rdar://10120691

llvm-svn: 140586
2011-09-27 00:23:52 +00:00
Fariborz Jahanian 23ef165920 objc - in matching setter argument type to its property type,
ingore the type qualifiers. // rdar://10156674

llvm-svn: 140571
2011-09-26 22:12:27 +00:00
Fariborz Jahanian 6d5d6a277a objc-arc: mark functions which return types which can't be dealt with
in arc mode and are in system headers as unavailable. 
// rdar://10186625

llvm-svn: 140565
2011-09-26 21:23:35 +00:00
Benjamin Kramer 6f4f307d1f Turns out we tested for this typo.
llvm-svn: 140513
2011-09-26 02:32:23 +00:00
Fariborz Jahanian 11ee283e2a objc - redeclaration of property in extension class
must match property type declaration in its
primary class. // rdar://10142679

llvm-svn: 140438
2011-09-24 00:56:59 +00:00
Fariborz Jahanian 44653709fd objc - fixes a crash when undefined typed property
followed by it implementation crashes when attempt
is made to access the synthesized ivar. 
// rdar://10177744

llvm-svn: 140432
2011-09-23 23:11:38 +00:00
Douglas Gregor 83dea558bc Add a test triple. Who knew that all the world wasn't darwin?
llvm-svn: 140408
2011-09-23 20:28:32 +00:00
Douglas Gregor b1fa148837 Don't propagate the 'availability' attribute through declaration
merging for overrides. One might want to make a method's availability
in a superclass different from that of its subclass. Fixes
<rdar://problem/10166223>.

llvm-svn: 140406
2011-09-23 20:23:42 +00:00
Douglas Gregor 0c254a00c1 Clean up parsing the category names in interfaces slightly, using
MatchRHSPunctuation appropriately and giving a useful source location
for the complaint about attributes being added to a category.

llvm-svn: 140404
2011-09-23 19:19:41 +00:00
Argyrios Kyrtzidis 712512bb36 [ARC] Allow forming 'id*' in an unevaluated context. Fixes rdar://10148540.
llvm-svn: 140212
2011-09-20 23:49:22 +00:00
Fariborz Jahanian db8015c449 objc - Treat type of 'self' in class methods as root of
class of this method. // rdar://10109725

llvm-svn: 139989
2011-09-17 19:23:40 +00:00
Fariborz Jahanian 8b148bb5b7 objc: Don't crash with decl context for property impl.
is missing. // rdar//10127639

llvm-svn: 139988
2011-09-17 18:48:50 +00:00
Fariborz Jahanian d923eb0d1e reverse patch in r139818 to focus on 'self'
instead of 'Class'.

llvm-svn: 139834
2011-09-15 20:40:18 +00:00
Fariborz Jahanian b7d278ba77 Objective-c: Conversion from type Class to any root class type is allowed
in class methods with no warning. //rdar://10109725

llvm-svn: 139818
2011-09-15 18:30:22 +00:00
Fariborz Jahanian 1723e17b78 objc-arc: warn when a 'retain' block property is
declared which does not force a 'copy' of the block literal
object. // rdar://9829425

llvm-svn: 139706
2011-09-14 18:03:46 +00:00
David Blaikie e5f9a9e603 Show either a location or a fixit note, not both, for uninitialized variable warnings.
llvm-svn: 139463
2011-09-10 05:35:08 +00:00