diff options
| -rw-r--r-- | dom/bindings/parser/WebIDL.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/dom/bindings/parser/WebIDL.py b/dom/bindings/parser/WebIDL.py index 7d06dbcec..8c71333fa 100644 --- a/dom/bindings/parser/WebIDL.py +++ b/dom/bindings/parser/WebIDL.py @@ -2321,8 +2321,10 @@ class IDLNullableType(IDLParameterizedType): return self def isDistinguishableFrom(self, other): - if (other.nullable() or (other.isUnion() and other.hasNullableType) or - other.isDictionary()): + if (other.nullable() or + other.isDictionary() or + (other.isUnion() and + (other.hasNullableType or other.hasDictionaryType()))): # Can't tell which type null should become return False return self.inner.isDistinguishableFrom(other) |