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* Basic: import SmallString<> into clang namespaceDylan Noblesmith2012-02-051-1/+1
| | | | | | | (I was going to fix the TODO about DenseMap too, but that would break self-host right now. See PR11922.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149799 91177308-0d34-0410-b5e6-96231b3b80d8
* Basic: import OwningPtr<> into clang namespaceDylan Noblesmith2012-02-051-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149798 91177308-0d34-0410-b5e6-96231b3b80d8
* Move a method from IdentifierTable.h out of line and remove the SmallString ↵Benjamin Kramer2012-02-041-0/+1
| | | | | | | | include. Fix all the transitive include users. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149783 91177308-0d34-0410-b5e6-96231b3b80d8
* arc migrator: twik previous patch to exclude user providedFariborz Jahanian2012-01-311-1/+1
| | | | | | | explicit type cast. // rdar://10521744 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149437 91177308-0d34-0410-b5e6-96231b3b80d8
* arc migrator: Do not attempt to migrate to bridge casts which Fariborz Jahanian2012-01-311-0/+15
| | | | | | | | cancel out each other. Leave it alone so users can take a look (unmigrated code forces error diagnostic). // rdar://10521744 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149435 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the AST representation of operations on Objective-CJohn McCall2011-11-061-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143867 91177308-0d34-0410-b5e6-96231b3b80d8
* When 'bool' is not a built-in type but is defined as a macro, printDouglas Gregor2011-09-271-3/+3
| | | | | | | | 'bool' rather than '_Bool' within types, to make things a bit more readable. Fixes <rdar://problem/10063263>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140650 91177308-0d34-0410-b5e6-96231b3b80d8
* [arcmt] Use __bridge_retained when passing an objc object to a CF parameterArgyrios Kyrtzidis2011-09-141-0/+28
| | | | | | annotated with cf_consumed attribute. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139709 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename the ARC cast kinds to start with "ARC".John McCall2011-09-101-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139466 91177308-0d34-0410-b5e6-96231b3b80d8
* Give conversions of block pointers to ObjC pointers a different cast kindJohn McCall2011-09-091-1/+1
| | | | | | | | | | than conversions of C pointers to ObjC pointers. In order to ensure that we've caught every case, add asserts to CastExpr that strictly determine which cast kind is used for which kind of bit cast. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139352 91177308-0d34-0410-b5e6-96231b3b80d8
* [arcmt] More automatic transformations and safety improvements; rdar://9615812 :Argyrios Kyrtzidis2011-07-271-6/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Replace calling -zone with 'nil'. -zone is obsolete in ARC. - Allow removing retain/release on a static global var. - Fix assertion hit when scanning for name references outside a NSAutoreleasePool scope. - Automatically add bridged casts for results of objc method calls and when calling CFRetain, for example: NSString *s; CFStringRef ref = [s string]; -> CFStringRef ref = (__bridge CFStringRef)([s string]); ref = s.string; -> ref = (__bridge CFStringRef)(s.string); ref = [NSString new]; -> ref = (__bridge_retained CFStringRef)([NSString new]); ref = [s newString]; -> ref = (__bridge_retained CFStringRef)([s newString]); ref = [[NSString alloc] init]; -> ref = (__bridge_retained CFStringRef)([[NSString alloc] init]); ref = [[s string] retain]; -> ref = (__bridge_retained CFStringRef)([s string]); ref = CFRetain(s); -> ref = (__bridge_retained CFTypeRef)(s); ref = [s retain]; -> ref = (__bridge_retained CFStringRef)(s); - Emit migrator error when trying to cast to CF type the result of autorelease/release: for CFStringRef f3() { return (CFStringRef)[[[NSString alloc] init] autorelease]; } emits: t.m:12:10: error: [rewriter] it is not safe to cast to 'CFStringRef' the result of 'autorelease' message; a __bridge cast may result in a pointer to a destroyed object and a __bridge_retained may leak the object return (CFStringRef)[[[NSString alloc] init] autorelease]; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ t.m:12:3: note: [rewriter] remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased return (CFStringRef)[[[NSString alloc] init] autorelease]; ^ - Before changing attributes to weak/unsafe_unretained, check if the backing ivar is set to a +1 object, in which case use 'strong' instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136208 91177308-0d34-0410-b5e6-96231b3b80d8
* remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner2011-07-231-1/+0
| | | | | | | | | LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
* [arcmt] Don't remove retains/releases on a global variable, flag them with ↵Argyrios Kyrtzidis2011-07-141-11/+0
| | | | | | errors. rdar://9402555. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135213 91177308-0d34-0410-b5e6-96231b3b80d8
* [arcmt] Break apart Transforms.cpp.Argyrios Kyrtzidis2011-06-211-0/+214
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133539 91177308-0d34-0410-b5e6-96231b3b80d8
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