Add member template 'Type::getAs<T>', which converts a Type* to a respective T*.

This method is intended to eventually replace the individual
Type::getAsXXXType<> methods.

The motivation behind this change is twofold:

1) Reduce redundant implementations of Type::getAsXXXType() methods. Most of
them are basically copy-and-paste.

2) By centralizing the implementation of the getAs<Type> logic we can more
smoothly move over to Doug Gregor's proposed canonical type smart pointer
scheme.

Along with this patch:

a) Removed 'Type::getAsPointerType()'; now clients use getAs<PointerType>.
b) Removed 'Type::getAsBlockPointerTypE()'; now clients use getAs<BlockPointerType>.

llvm-svn: 76098

1 files changed, 2 insertions, 2 deletions

diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index bd2b0aef3d3..0a7ed462f81 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -1204,7 +1204,7 @@ Sema::ActOnObjCAtThrowStmt(SourceLocation AtLoc, ExprArg expr,Scope *CurScope) {
     QualType ThrowType = ThrowExpr->getType();
     // Make sure the expression type is an ObjC pointer or "void *".
     if (!ThrowType->isObjCObjectPointerType()) {
-      const PointerType *PT = ThrowType->getAsPointerType();
+      const PointerType *PT = ThrowType->getAs<PointerType>();
       if (!PT || !PT->getPointeeType()->isVoidType())
         return StmtError(Diag(AtLoc, diag::error_objc_throw_expects_object)
                         << ThrowExpr->getType() << ThrowExpr->getSourceRange());
@@ -1221,7 +1221,7 @@ Sema::ActOnObjCAtSynchronizedStmt(SourceLocation AtLoc, ExprArg SynchExpr,
   // Make sure the expression type is an ObjC pointer or "void *".
   Expr *SyncExpr = static_cast<Expr*>(SynchExpr.get());
   if (!SyncExpr->getType()->isObjCObjectPointerType()) {
-    const PointerType *PT = SyncExpr->getType()->getAsPointerType();
+    const PointerType *PT = SyncExpr->getType()->getAs<PointerType>();
     if (!PT || !PT->getPointeeType()->isVoidType())
       return StmtError(Diag(AtLoc, diag::error_objc_synchronized_expects_object)
                        << SyncExpr->getType() << SyncExpr->getSourceRange());