Allow implicitly casting enum types to bool. (#4739)

* Allow implicitly casting enum types to bool.

* Fix.

1 files changed, 8 insertions, 0 deletions

diff --git a/source/slang/core.meta.slang b/source/slang/core.meta.slang
index 2da0fa523..45b3435eb 100644
--- a/source/slang/core.meta.slang
+++ b/source/slang/core.meta.slang
@@ -751,6 +751,14 @@ extension bool : IRangedValue
     __intrinsic_op($(kIROp_CastPtrToBool))
     __init(Ptr<T> ptr);
 
+    __generic<T : __EnumType>
+    __implicit_conversion($(kConversionCost_IntegerTruncate))
+    [__unsafeForceInlineEarly]
+    __init(T v)
+    {
+        return __slang_noop_cast<T.__Tag>(v) != __intCast<T.__Tag>(0);
+    }
+
     static const bool maxValue = true;
     static const bool minValue = false;
 }