patch 9.1.0523: Vim9: cannot downcast an object
Problem: Vim9: cannot downcast an object (Ernie Rael)
Solution: Fix class downcasting issue (LemonBoy).
When casting an object from one class to another the target type may be
a subclass (downcast) or superclass (upcast) of the source one.
Upcasts require a runtime type check to be emitted.
Add a disassembly test.
fixes: #13244
closes: #15079
Signed-off-by: LemonBoy <thatlemon@gmail.com>
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/structs.h b/src/structs.h
index 7e21f0f..6309211 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -4902,7 +4902,8 @@
WT_MEMBER,
WT_METHOD, // object method
WT_METHOD_ARG, // object method argument type
- WT_METHOD_RETURN // object method return type
+ WT_METHOD_RETURN, // object method return type
+ WT_CAST, // type cast
} wherekind_T;
// Struct used to pass the location of a type check. Used in error messages to