First wave of changes to support "blocks" (an extension to C).
This commit adds the declaration syntax (and associated type).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55417 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp
index 84b369c..2c5a3f4 100644
--- a/lib/AST/Type.cpp
+++ b/lib/AST/Type.cpp
@@ -231,6 +231,20 @@
return getDesugaredType()->getAsPointerType();
}
+const BlockPointerType *Type::getAsBlockPointerType() const {
+ // If this is directly a block pointer type, return it.
+ if (const BlockPointerType *PTy = dyn_cast<BlockPointerType>(this))
+ return PTy;
+
+ // If the canonical form of this type isn't the right kind, reject it.
+ if (!isa<BlockPointerType>(CanonicalType))
+ return 0;
+
+ // If this is a typedef for a block pointer type, strip the typedef off
+ // without losing all typedef information.
+ return getDesugaredType()->getAsBlockPointerType();
+}
+
const ReferenceType *Type::getAsReferenceType() const {
// If this is directly a reference type, return it.
if (const ReferenceType *RTy = dyn_cast<ReferenceType>(this))
@@ -574,7 +588,9 @@
}
if (const ASQualType *ASQT = dyn_cast<ASQualType>(CanonicalType))
return ASQT->getBaseType()->isScalarType();
- return isa<PointerType>(CanonicalType) || isa<ComplexType>(CanonicalType) ||
+ return isa<PointerType>(CanonicalType) ||
+ isa<BlockPointerType>(CanonicalType) ||
+ isa<ComplexType>(CanonicalType) ||
isa<ObjCQualifiedIdType>(CanonicalType);
}
@@ -831,6 +847,11 @@
getPointeeType().getAsStringInternal(S);
}
+void BlockPointerType::getAsStringInternal(std::string &S) const {
+ S = '^' + S;
+ PointeeType.getAsStringInternal(S);
+}
+
void ReferenceType::getAsStringInternal(std::string &S) const {
S = '&' + S;