libswift: add Type.isAddress and Type.isObject

Author: eeckstein

include/swift/SIL/SILBridging.h

@@ -169,6 +169,8 @@ BridgedStringRef SILNode_debugDescription(BridgedNode node);
 OptionalBridgedOperand SILValue_firstUse(BridgedValue value);
 BridgedType SILValue_getType(BridgedValue value);
 
+SwiftInt SILType_isAddress(BridgedType);
+
 BridgedBasicBlock SILArgument_getParent(BridgedArgument argument);
 
 OptionalBridgedInstruction SILInstruction_next(BridgedInstruction inst);

include/swift/SIL/SILBridgingUtils.h

@@ -70,6 +70,10 @@ inline SILValue castToSILValue(BridgedValue value) {
   return static_cast<ValueBase *>(value.obj);
 }
 
+inline SILType castToSILType(BridgedType type) {
+  return SILType::getFromOpaqueValue(type.typePtr);
+}
+
 template <class I = SILInstruction> I *castToInst(BridgedInstruction inst) {
   return cast<I>(static_cast<SILNode *>(inst.obj)->castToInstruction());
 }

lib/SIL/Utils/SILBridging.cpp

@@ -274,6 +274,14 @@ BridgedType SILValue_getType(BridgedValue value) {
   return { castToSILValue(value)->getType().getOpaqueValue() };
 }
 
+//===----------------------------------------------------------------------===//
+//                            SILType
+//===----------------------------------------------------------------------===//
+
+SwiftInt SILType_isAddress(BridgedType type) {
+  return castToSILType(type).isAddress();
+}
+
 //===----------------------------------------------------------------------===//
 //                            SILGlobalVariable
 //===----------------------------------------------------------------------===//

libswift/Sources/SIL/Type.swift

@@ -13,5 +13,8 @@
 import SILBridging
 
 public struct Type {
-  var silType: BridgedType
+  var bridged: BridgedType
+  
+  public var isAddress: Bool { SILType_isAddress(bridged) != 0 }
+  public var isObject: Bool { !isAddress }
 }