Commit Graph

121 Commits

Author SHA1 Message Date
David Blaikie bbafb8a745 Unify naming of LangOptions variable/get function across the Clang stack (Lex to AST).
The member variable is always "LangOpts" and the member function is always "getLangOpts".

Reviewed by Chris Lattner

llvm-svn: 152536
2012-03-11 07:00:24 +00:00
John McCall 113bee0536 Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr to
track whether the referenced declaration comes from an enclosing
local context.  I'm amenable to suggestions about the exact meaning
of this bit.

llvm-svn: 152491
2012-03-10 09:33:50 +00:00
Ted Kremenek f7639e1b4a Add new code migrator support for migrating existing Objective-C code to use
the new Objective-C NSArray/NSDictionary/NSNumber literal syntax.

This introduces a new library, libEdit, which provides a new way to support
migration of code that improves on the original ARC migrator.  We now believe
that most of its functionality can be refactored into the existing libraries,
and thus this new library may shortly disappear.

llvm-svn: 152141
2012-03-06 20:06:33 +00:00
Argyrios Kyrtzidis afdc66f4fa [arcmt]
-Make sure we don't change to '__weak' a __block variable used as output.
-Make sure we don't apply __weak twice.

Fixes rdar://10520757&10521362

llvm-svn: 152020
2012-03-05 08:46:24 +00:00
Argyrios Kyrtzidis 981a961d03 Move llvm/ADT/SaveAndRestore.h -> llvm/Support/SaveAndRestore.h.
Needs llvm update.

llvm-svn: 151829
2012-03-01 19:45:56 +00:00
Argyrios Kyrtzidis bb5abc7b49 Move "clang/Analysis/Support/SaveAndRestore.h" to "llvm/ADT/SaveAndRestore.h"
to make it more widely available.

Depends on llvm commit r151564

llvm-svn: 151566
2012-02-27 21:09:45 +00:00
Argyrios Kyrtzidis 01c047e003 [arcmt] GC migrator: don't try to remove redundant __strong, it does
more harm than good.

Fixes rdar://10522805&10521433

llvm-svn: 151424
2012-02-25 01:57:42 +00:00
Dylan Noblesmith c95d81924d Basic: import IntrusiveRefCntPtr<> into clang namespace
The class name is long enough without the llvm:: added.
Also bring in RefCountedBase and RefCountedBaseVPTR.

llvm-svn: 150958
2012-02-20 14:00:23 +00:00
Dylan Noblesmith 2c1dd2716a Basic: import SmallString<> into clang namespace
(I was going to fix the TODO about DenseMap too, but
that would break self-host right now. See PR11922.)

llvm-svn: 149799
2012-02-05 02:13:05 +00:00
Dylan Noblesmith e27789991d Basic: import OwningPtr<> into clang namespace
llvm-svn: 149798
2012-02-05 02:12:40 +00:00
Benjamin Kramer 4903802fbf Move a method from IdentifierTable.h out of line and remove the SmallString include.
Fix all the transitive include users.

llvm-svn: 149783
2012-02-04 13:45:25 +00:00
Fariborz Jahanian a1c1b152f0 arc migrator: twik previous patch to exclude user provided
explicit type cast. // rdar://10521744

llvm-svn: 149437
2012-01-31 22:09:44 +00:00
Fariborz Jahanian eb00284f22 arc migrator: Do not attempt to migrate to bridge casts which
cancel out each other. Leave it alone so users can take a look
(unmigrated code forces error diagnostic). // rdar://10521744

llvm-svn: 149435
2012-01-31 21:58:23 +00:00
Fariborz Jahanian 48fd81b484 objc-arc: introduce -no-finalize-removal which in gc mode,
leaves "finalize' behind and in arc mode, does not
include it. This allows the migrated source to be compiled
in both gc and arc mode. // rdar://10532441

llvm-svn: 149079
2012-01-26 20:57:58 +00:00
Fariborz Jahanian 0c859d67ef arc migrator: Added an option to the migrator
unused yet.

llvm-svn: 149001
2012-01-26 00:08:04 +00:00
Fariborz Jahanian aa7b9aa10d arc migrator: Provide infrastructure to add options
specific to migrator. Use its first option to
warn migrating from GC to arc when 
NSAllocateCollectable/NSReallocateCollectable is used.
// rdar://10532541

llvm-svn: 148887
2012-01-25 00:20:29 +00:00
Fariborz Jahanian 1630c15b0f arg migrator: change all "assign" of object properties
to "strong" when migrating from GC. // rdar://10532449

llvm-svn: 148607
2012-01-21 00:43:53 +00:00
Fariborz Jahanian 9652adf2af arc migrator: replace "retain" attribute with "strong"
which have same semantics in mrr as well as arr.
// rdar://10688312

llvm-svn: 148559
2012-01-20 19:15:02 +00:00
Douglas Gregor 32fbe31246 Extract the (InputKind, std::string) pair used to describe inputs to
the front end into its own class, FrontendInputFile, to make it easier
to introduce new per-input data. No functionality change.

llvm-svn: 148546
2012-01-20 16:28:04 +00:00
Argyrios Kyrtzidis 1b07c344b4 For Lexer's isAt[Start/End]OfMacroExpansion add an out parameter for the macro
start/end location.

It is commonly needed after calling the function; with this way we avoid
recalculating it.

llvm-svn: 148479
2012-01-19 15:59:08 +00:00
Rafael Espindola 65e025cad5 Remove unused variables.
llvm-svn: 147260
2011-12-25 01:18:52 +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
Argyrios Kyrtzidis eca1f36a54 [arcmt] Integrate GC __weak into property attributes even when we don't have
the implementation.

llvm-svn: 145224
2011-11-28 02:04:36 +00:00
Argyrios Kyrtzidis 3fc3dcd80f [arcmt] Don't add __weak if there is already a GC __weak and make sure to clear
__weak from a readonly property.

llvm-svn: 145210
2011-11-28 00:23:12 +00:00
Ted Kremenek 2acedbd417 Refine placement of LangOptions object in CompilerInvocation by adding a new baseclass CompilerInvocationBase with a custom copy constructor. This ensures that whenever the CompilerInvocation object's copy constructor is used we always clone the LangOptions object.
llvm-svn: 144973
2011-11-18 04:32:13 +00:00
Ted Kremenek 8cf47df72f Make 'LangOptions' in CompilerInvocation a heap-allocated, reference counted object. I discovered that llvm::RefCountedBase<T> has
a bug where the reference count is copied in the copy constructor, which means that there were cases when the CompilerInvocation
objects created by ASTUnit were actually leaked.  When I fixed that bug locally, it showed that a whole bunch of code assumed
that the LangOptions object that was part of CompilerInvocation was still alive.  By making it heap-allocated and reference counted,
we can keep it around after the CompilerInvocation object goes away.

As part of this change, change CompilerInvocation:getLangOptions() to return a pointer, acting as another clue that this
object may outlive the CompilerInvocation object.

This commit doesn't fix the CompilerInvocation leak itself.  That will come when I commit the fix to llvm::RefCountedBase<T> to
mainline LLVM.

llvm-svn: 144930
2011-11-17 23:01:24 +00:00
Argyrios Kyrtzidis 485eceed38 [arcmt] Take into account that all properties are strong-by-default now and fix the test.
llvm-svn: 144146
2011-11-08 23:09:34 +00:00
Argyrios Kyrtzidis e4a38a73fd [arcmt] Now that readonly properties are strong-by-default, do not add redundant 'strong'.
llvm-svn: 144136
2011-11-08 22:10:58 +00:00
Argyrios Kyrtzidis dbe077a89d [arcmt] Now that properties are strong by default, avoid adding redundant '(strong)'
property attribute.

llvm-svn: 144078
2011-11-08 05:56:11 +00:00
Argyrios Kyrtzidis 3befb8cd8a [arcmt] NSViewController does not support weak.
llvm-svn: 144077
2011-11-08 05:56:08 +00:00
Argyrios Kyrtzidis 2519a0801f [arcmt] When we already removed a __weak, don't try to change it to __unsafe_unretained
later on, or we will end up with a redundant '__unsafe_unretained'.

llvm-svn: 144059
2011-11-08 02:02:38 +00:00
Argyrios Kyrtzidis d569791c44 [arcmt] Fix handling NSMakeCollectable inside an objc method.
llvm-svn: 143980
2011-11-07 18:46:50 +00:00
Argyrios Kyrtzidis 722d21c646 [arcmt] In GC, handle (assign) @properties.
-Move __strong/__weak added to a property type to the property attribute,
e.g.  "@property (assign) __weak Foo *prop;" --> "@property (weak) Foo *prop;"

-Remove (assign) in a property so that it becomes strong-by-default in ARC.

llvm-svn: 143979
2011-11-07 18:46:46 +00:00
Argyrios Kyrtzidis 0dd98a4c51 [arcmt] Map property decls to their GC attributes.
llvm-svn: 143978
2011-11-07 18:40:32 +00:00
Argyrios Kyrtzidis e80d4f228c [arcmt] In GC, change '__weak' -> '__unsafe_unretained' when applied
to objects of classes that don't support ARC weak

llvm-svn: 143976
2011-11-07 18:40:29 +00:00
Argyrios Kyrtzidis f233dac67c [arcmt] In GC, error for __strong/__weak on non-objc pointers.
llvm-svn: 143887
2011-11-06 18:58:23 +00:00
Argyrios Kyrtzidis 0c233fa23e [arcmt] In GC, clear redundant __strong's.
llvm-svn: 143886
2011-11-06 18:58:17 +00:00
Argyrios Kyrtzidis aa421ea8af [arcmt] Make PropertiesRewriter::getPropertyType return the unqualified type.
llvm-svn: 143884
2011-11-06 18:58:07 +00:00
Argyrios Kyrtzidis e43ae79038 [arcmt] Collect all the places where GC attributes __strong/__weak occur.
llvm-svn: 143883
2011-11-06 18:58:03 +00:00
Argyrios Kyrtzidis aaa999660b [arcmt] Refactor PropertiesRewriter to use MigrationContext.
llvm-svn: 143882
2011-11-06 18:57:57 +00:00
John McCall fe96e0b6be Change the AST representation of operations on Objective-C
property references to use a new PseudoObjectExpr
expression which pairs a syntactic form of the expression
with a set of semantic expressions implementing it.
This should significantly reduce the complexity required
elsewhere in the compiler to deal with these kinds of
expressions (e.g. IR generation's special l-value kind,
the static analyzer's Message abstraction), at the lower
cost of specifically dealing with the odd AST structure
of these expressions.  It should also greatly simplify
efforts to implement similar language features in the
future, most notably Managed C++'s properties and indexed
properties.

Most of the effort here is in dealing with the various
clients of the AST.  I've gone ahead and simplified the
ObjC rewriter's use of properties;  other clients, like
IR-gen and the static analyzer, have all the old
complexity *and* all the new complexity, at least
temporarily.  Many thanks to Ted for writing and advising
on the necessary changes to the static analyzer.

I've xfailed a small diagnostics regression in the static
analyzer at Ted's request.

llvm-svn: 143867
2011-11-06 09:01:30 +00:00
Argyrios Kyrtzidis aed9bd7cc1 [arcmt] Fix an assertion hit in rdar://10336125; a bit too complicated to reduce.
llvm-svn: 143754
2011-11-05 00:02:26 +00:00
Argyrios Kyrtzidis 6b2d47d829 [arcmt] In GC, error out when there is a call that returns a pointer to
GC managed non-objc object memory.

llvm-svn: 143747
2011-11-04 23:43:03 +00:00
Argyrios Kyrtzidis d2b9112354 [arcmt] For GC, cleanup and turn -finalize to -dealloc.
llvm-svn: 143701
2011-11-04 15:58:22 +00:00
Argyrios Kyrtzidis d8cdfbc905 [arcmt] In GC, error for use of CFMakeCollectable because it will leak the
object that it receives in ARC.

llvm-svn: 143700
2011-11-04 15:58:17 +00:00
Argyrios Kyrtzidis 3eaa22af57 In C++ keep unavailable function calls in the AST, like in C/ObjC.
This allows the migrator to visit and fix them.

llvm-svn: 143699
2011-11-04 15:58:13 +00:00
Argyrios Kyrtzidis d208ef95aa [arcmt] In GC, transform NSMakeCollectable to CFBridgingRelease.
llvm-svn: 143698
2011-11-04 15:58:08 +00:00
Ted Kremenek 337c5b880c Further refine the diagnostic categories for ARC diagnostics. Addresses <rdar://problem/10245086>.
llvm-svn: 142571
2011-10-20 05:07:47 +00:00
Argyrios Kyrtzidis 05c65fbdb6 [arcmt] Rewrite attributes in extensions as well. rdar://9992142
llvm-svn: 142407
2011-10-18 19:49:19 +00:00
Argyrios Kyrtzidis 697729a7de Revert r142311, -mios-simulator-version-min does not work correctly.
llvm-svn: 142322
2011-10-18 00:22:49 +00:00