[Runtime] Minor future-proofing for demangling bound generic ObjC classes.

DougGregor · DougGregor · commit 95d75b51dee7 · 2019-01-03T11:21:18.000-08:00
diff --git a/include/swift/Demangling/TypeDecoder.h b/include/swift/Demangling/TypeDecoder.h
@@ -163,7 +163,7 @@ class TypeDecoder {
     case NodeKind::BoundGenericClass:
     {
 #if SWIFT_OBJC_INTEROP
-      if (Node->getNumChildren() == 2) {
+      if (Node->getNumChildren() >= 2) {
         auto ChildNode = Node->getChild(0);
         if (ChildNode->getKind() == NodeKind::Type &&
             ChildNode->getNumChildren() > 0)

Original file line number	Diff line number	Diff line change
`@@ -163,7 +163,7 @@ class TypeDecoder {`
`163`	`163`	`case NodeKind::BoundGenericClass:`
`164`	`164`	`{`
`165`	`165`	`#if SWIFT_OBJC_INTEROP`
`166`		`- if (Node->getNumChildren() == 2) {`
	`166`	`+ if (Node->getNumChildren() >= 2) {`
`167`	`167`	`auto ChildNode = Node->getChild(0);`
`168`	`168`	`if (ChildNode->getKind() == NodeKind::Type &&`
`169`	`169`	`ChildNode->getNumChildren() > 0)`