Added type encoding for 'id' type.

llvm-svn: 43504

clang/AST/ASTContext.cpp

@@ -1010,6 +1010,10 @@ void ASTContext::getObjcEncodingForType(QualType T, std::string& S) const
     S += encoding;
   } else if (const PointerType *PT = T->getAsPointerType()) {
     QualType PointeeTy = PT->getPointeeType();
+    if (isObjcIdType(PointeeTy)) {
+      S += '@';
+      return;
+    }
     
     if (PointeeTy->isCharType()) {
       // char pointer types should be encoded as '*' unless it is a

clang/Sema/SemaDecl.cpp

@@ -1963,6 +1963,14 @@ Sema::DeclTy *Sema::ActOnMethodDeclaration(
     TypeTy **ArgTypes, IdentifierInfo **ArgNames,
     AttributeList *AttrList, tok::ObjCKeywordKind MethodDeclKind) {
   llvm::SmallVector<ParmVarDecl*, 16> Params;
+  
+  // We cannot build type 'id' laziliy. It is needed when checking if a 
+  // type is an 'id' (via call to isObjcIdType) even if there is no
+  // need for the dafult 'id' type.
+  // FIXME: Depending on the need to compare to 'id', this may have to go
+  // somewhere else. At this time, this is a good enough place to do type
+  // encoding of methods and ivars for the rewrite client.
+  GetObjcIdType(MethodLoc);
 
   for (unsigned i = 0; i < Sel.getNumArgs(); i++) {
     // FIXME: arg->AttrList must be stored too!

clang/clang.xcodeproj/project.pbxproj

@@ -756,6 +756,7 @@
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			buildConfigurationList = 1DEB923508733DC60010E9CD /* Build configuration list for PBXProject "clang" */;
+			compatibilityVersion = "Xcode 2.4";
 			hasScannedForEncodings = 1;
 			mainGroup = 08FB7794FE84155DC02AAC07 /* clang */;
 			projectDirPath = "";

clang/test/Sema/method-encoding-1.m

@@ -0,0 +1,18 @@
+// RUN: clang -rewrite-test -verify %s
+
+@protocol P1
+- (void) MyProtoMeth : (int **) arg1 : (void*) arg2;
++ (void) MyProtoMeth : (int **) arg1 : (void*) arg2;
+@end
+
+@interface Intf <P1>
+- (char *) MyMeth : (double) arg1 : (char *[12]) arg2;
+- (id) address:(void *)location with:(unsigned **)arg2;
+@end
+
+@implementation Intf
+- (char *) MyMeth : (double) arg1 : (char *[12]) arg2{}
+- (void) MyProtoMeth : (int **) arg1 : (void*) arg2 {}
++ (void) MyProtoMeth : (int **) arg1 : (void*) arg2 {}
+- (id) address:(void *)location with:(unsigned **)arg2{}
+@end