Fix <rdar://problem/6191148> [sema] Objective-C method lookup (at global scope) fails to handle overloaded selectors properly.

Long standing bug in Sema::ActOnInstanceMessage(). We now warn when messaging an "id" with multiple method signatures in scope. The diags are a little verbose, however they can be streamlined if necessary. 

llvm-svn: 56843

llvm-svn: 56791

Fix <rdar://problem/6252129> implementation of method in category doesn't effectively declare it for methods below.

llvm-svn: 56771

(1) Additional arguments to variadic methods should have default
promotions applied.

(2) Additional arguments to non-variadic methods were allowed.

llvm-svn: 56084

no method declaration was found.
 - This was allowing arrays to pass "by value" among other things.

Add assert in CodeGen that arguments cannot have array type.

llvm-svn: 56080

CheckMessageArgumentTypes.
 - No functionality change.

llvm-svn: 56079

 - Added as private members for each because it is not clear where to
   put the common definition. Perhaps the IdentifierInfos all of these
   "pseudo-keywords" should be collected into one place (this would
   KnownFunctionIDs and Objective-C property IDs, for example).

Remove Token::isNamedIdentifier.
 - There isn't a good reason to use strcmp when we have interned
   strings, and there isn't a good reason to encourage clients to do
   so.

llvm-svn: 54794

 - Drop TokenKinds.h from Action.h
 - Move DeclSpec.h from Sema.h into individual Sema .cpp files

llvm-svn: 54625

llvm-svn: 54605

ASTContext::getCanonicalType instead (PR2189)

llvm-svn: 54105

(a) removes a bogus warning.
(b) removes an undesirable usage of the ObjCMessageExpr constructor that takes an IdentifierInfo * (which I will abolish).

llvm-svn: 54042

This fixes a critical rewriter bug (<rdar://problem/6096760> clang ObjC rewriter: 'self' not expected value in class method called with 'super').

Also added a couple FIXME's since I'm not happy with my fix to Sema. It would be nicer if the super handling for class/instance messages was the same (based on PreDefinedExpr).

llvm-svn: 53994

simplifying code along the way and fixing a problem and memory leak or two.

llvm-svn: 53876

various objc lists over to it.  First up, the protocol list 
on ObjCInterfaceDecl.

llvm-svn: 53856

@implementation to resolve nullary selector references.

llvm-svn: 53845

it goes and makes std::strings out of them, which is not 
defined.

llvm-svn: 53843

llvm-svn: 53842

interface.  This fixes a bug where we used to accept:

void test2(NSNumber x) {
	[x METH];
}

which doesn't make sense and GCC rejects.

llvm-svn: 53841

llvm-svn: 53837

llvm-svn: 53836

llvm-svn: 53833

protocol.  Simplify some code to use unconditional form of the
protocol access list.

llvm-svn: 53832

Replace CurFunctionDecl and CurMethodDecl with methods getCurFunctionDecl() and getCurMethodDecl() that return the appropriate Decl through CurContext.

llvm-svn: 52852

ObjCMessageExpr objects that represent messages to class methods now can contain the ObjCInterfaceDecl* of the target class if it was available when the ObjCMessageExpr object was constructed.  The original interfaces of the class has been preserved (requiring no functionality changes from clients), but now a "getClasSInfo" method returns both the ObjCInterfaceDecl* and IdentifierInfo* of the target class.

llvm-svn: 52676

"this patch adds code generation hooks for Objective-C constant strings.  It also modifies Sema so that Objective-C constant strings are treated as untyped objects if the interface for the constant string class can not be found.  This is consistent with Apple GCC.  I thought it was consistent with GNU GCC, since this was causing failures when trying to compile GNUstep with (GNU) GCC, but it appears that this is not the case when attempting to produce a simple test case to demonstrate it.  Possibly there is a way of making the error go away, but I haven't found out what it is yet."

Patch by David Chisnall!

llvm-svn: 52599

Patch by David Chisnall with objc rewriter and stmtdumper updates from me.

llvm-svn: 52580

- Changed Sema::ObjCActOnStartOfMethodDef() to more accurately type "self" in factory methods.
- Changed Sema::ActOnInstanceMessage() to use the new type to restrict the lookup.

llvm-svn: 52005

llvm-svn: 51969

llvm-svn: 51964

assigned to less protocol qualified object on LHS.

llvm-svn: 51956

Sema::ActOnClassMessage() needs to look through it's local implementation for private class methods.

llvm-svn: 51938

This eliminates a bogus warning identified in the test below.

This fixes <rdar://problem/5968256> clang on xcode: error: incompatible type initializing 'NSObject<XCSelectionSource> *', expected 'id<NSObject,XCSelectionSource>'

llvm-svn: 51832

llvm-svn: 51809

- #include ExprObjC.h in many places

llvm-svn: 51703

deleting dead code, making other code more obvious, and fixing a
bug.  This fixes these (bogus) warnings in release mode:

SemaExprObjC.cpp:383: warning: 'RHSProtoE' may be used uninitialized in this function
SemaExprObjC.cpp:383: warning: 'RHSProtoI' may be used uninitialized in this function

llvm-svn: 49984

While it is similar to the other compatibility predicates in ASTContext,
it is not used by them and is different.

In addition, greatly simplify ObjCQualifiedIdTypesAreCompatible and
fix some canonical type bugs.  Also, simplify my Type::getAsObjC* methods.

llvm-svn: 49313

llvm-svn: 49098

Two changes to Sema::LookupDecl() interface. 
(1) Remove IdLoc (it's never used). 
(2) Add a bool to enable/disable lazy builtin creaation (defaults to true).

This enables us to use LookupDecl() in Sema::isTypeName(), which is also part of this commit.

To make this work, I changed isTypeName() to be a non-const member function. I'm not happy with this, however I fiddled with making LookupDecl() and friends const and it got ugly pretty quickly. We can certainly add it back if/when someone has time to fiddle with it. For now, I thought this simplification was more important than retaining the const-ness. 

llvm-svn: 49087

Fairly large "cleaup" related to changing ObjCCompatibleAliasDecl superclass (to inherit from NamedDecl, instead of ScopedDecl). 

- Added a DenseMap to associate an IdentifierInfo with the ObjCCompatibleAliasDecl.
- Renamed LookupScopedDecl->LookupDecl and changed it's return type to Decl. Also added lookup for ObjCCompatibleAliasDecl's.
- Removed Sema::LookupInterfaceDecl(). Converted clients to used LookupDecl().
- Some minor indentation changes.

Will deal with ObjCInterfaceDecl and getObjCInterfaceDecl() in a separate commit...

llvm-svn: 49058

llvm-svn: 48924